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Analysis Report gedanken.exe

Overview

General Information

Sample Name:	gedanken.exe
Analysis ID:	384219
MD5:	e2342da4c7a6ff102679cd487954dc5f
SHA1:	a5aec8579ab17e7378c5cff51eb321d55f2e3532
SHA256:	dc51b75c62afc72ad319d361366d01901a237343fe8dafc568fc0f38d9bc7f3a
Tags:	exeGuLoader
Infos:
Most interesting Screenshot:

Detection

GuLoader

Score:	80
Range:	0 - 100
Whitelisted:	false
Confidence:	100%

Signatures

Multi AV Scanner detection for submitted file

Yara detected GuLoader

Contains functionality to detect hardware virtualization (CPUID execution measurement)

Found potential dummy code loops (likely to delay analysis)

Machine Learning detection for sample

Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)

Tries to detect virtualization through RDTSC time measurements

Yara detected VB6 Downloader Generic

Abnormal high CPU Usage

Contains functionality for execution timing, often used to detect debuggers

Contains functionality to query CPU information (cpuid)

Contains functionality to read the PEB

Detected potential crypto function

PE file contains an invalid checksum

PE file contains strange resources

Program does not show much activity (idle)

Sample file is different than original file name gathered from version info

Uses 32bit PE files

Uses code obfuscation techniques (call, push, ret)

Classification

Startup

System is w10x64

gedanken.exe (PID: 6880 cmdline: 'C:\Users\user\Desktop\gedanken.exe' MD5: E2342DA4C7A6FF102679CD487954DC5F)

cleanup

Malware Configuration

No configs have been found

Yara Overview

Memory Dumps

Source	Rule	Description	Author
00000000.00000002.1168805441.0000000000460000.00000040.00000001.sdmp	JoeSecurity_GuLoader	Yara detected GuLoader	Joe Security
Process Memory Space: gedanken.exe PID: 6880	JoeSecurity_VB6DownloaderGeneric	Yara detected VB6 Downloader Generic	Joe Security
Process Memory Space: gedanken.exe PID: 6880	JoeSecurity_GuLoader	Yara detected GuLoader	Joe Security

Sigma Overview

No Sigma rule has matched

Signature Overview

Click to jump to signature section

Show All Signature Results

AV Detection:

Multi AV Scanner detection for submitted file

Show sources

Source: gedanken.exe	Virustotal: Detection: 52%			Perma Link
Source: gedanken.exe	ReversingLabs: Detection: 50%

Machine Learning detection for sample

Show sources

Source: gedanken.exe

Joe Sandbox ML: detected

Source: gedanken.exe

Static PE information: LOCAL_SYMS_STRIPPED, 32BIT_MACHINE, EXECUTABLE_IMAGE, LINE_NUMS_STRIPPED, RELOCS_STRIPPED

Source: C:\Users\user\Desktop\gedanken.exe

Process Stats: CPU usage > 98%

Source: C:\Users\user\Desktop\gedanken.exe	Code function: 0_2_00465802
Source: C:\Users\user\Desktop\gedanken.exe	Code function: 0_2_00461A9C

Source: gedanken.exe	Static PE information: Resource name: RT_ICON type: GLS_BINARY_LSB_FIRST
Source: gedanken.exe	Static PE information: Resource name: RT_ICON type: GLS_BINARY_LSB_FIRST

Source: gedanken.exe, 00000000.00000002.1169390599.0000000002260000.00000002.00000001.sdmp

Binary or memory string: OriginalFilenameuser32j% vs gedanken.exe

Source: gedanken.exe

Static PE information: LOCAL_SYMS_STRIPPED, 32BIT_MACHINE, EXECUTABLE_IMAGE, LINE_NUMS_STRIPPED, RELOCS_STRIPPED

Source: classification engine

Classification label: mal80.troj.evad.winEXE@1/0@0/0

Source: C:\Users\user\Desktop\gedanken.exe

File created: C:\Users\user\AppData\Local\Temp\~DFBBC711B87778BA89.TMP

Jump to behavior

Source: gedanken.exe

Static PE information: Section: .text IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_READ

Source: C:\Users\user\Desktop\gedanken.exe

Section loaded: C:\Windows\SysWOW64\msvbvm60.dll

Source: C:\Users\user\Desktop\gedanken.exe

Key opened: HKEY_CURRENT_USER\Software\Policies\Microsoft\Windows\Safer\CodeIdentifiers

Source: gedanken.exe	Virustotal: Detection: 52%
Source: gedanken.exe	ReversingLabs: Detection: 50%

Data Obfuscation:

Yara detected GuLoader

Show sources

Source: Yara match	File source: 00000000.00000002.1168805441.0000000000460000.00000040.00000001.sdmp, type: MEMORY
Source: Yara match	File source: Process Memory Space: gedanken.exe PID: 6880, type: MEMORY

Yara detected VB6 Downloader Generic

Show sources

Source: Yara match

File source: Process Memory Space: gedanken.exe PID: 6880, type: MEMORY

Source: gedanken.exe

Static PE information: real checksum: 0x29cba should be: 0x275ed

Source: C:\Users\user\Desktop\gedanken.exe	Code function: 0_2_0040BE5C push 7600FFCEh; iretd
Source: C:\Users\user\Desktop\gedanken.exe	Code function: 0_2_004030E1 push ss; iretd
Source: C:\Users\user\Desktop\gedanken.exe	Code function: 0_2_0040249C push edi; retf
Source: C:\Users\user\Desktop\gedanken.exe	Code function: 0_2_0040314D push ss; iretd
Source: C:\Users\user\Desktop\gedanken.exe	Code function: 0_2_0040475D push ss; retf
Source: C:\Users\user\Desktop\gedanken.exe	Code function: 0_2_004047C8 push ss; retf
Source: C:\Users\user\Desktop\gedanken.exe	Code function: 0_2_00464CDA push ecx; retf
Source: C:\Users\user\Desktop\gedanken.exe	Code function: 0_2_00462CA0 push ecx; retf
Source: C:\Users\user\Desktop\gedanken.exe	Code function: 0_2_00466554 pushfd ; iretd
Source: C:\Users\user\Desktop\gedanken.exe	Code function: 0_2_00466A14 push edi; ret

Source: C:\Users\user\Desktop\gedanken.exe

Process information set: NOOPENFILEERRORBOX

Malware Analysis System Evasion:

Contains functionality to detect hardware virtualization (CPUID execution measurement)

Show sources

Source: C:\Users\user\Desktop\gedanken.exe	Code function: 0_2_00462C4F
Source: C:\Users\user\Desktop\gedanken.exe	Code function: 0_2_0046581C
Source: C:\Users\user\Desktop\gedanken.exe	Code function: 0_2_00462CFC
Source: C:\Users\user\Desktop\gedanken.exe	Code function: 0_2_00462CBE
Source: C:\Users\user\Desktop\gedanken.exe	Code function: 0_2_00462D3F
Source: C:\Users\user\Desktop\gedanken.exe	Code function: 0_2_00462DD6
Source: C:\Users\user\Desktop\gedanken.exe	Code function: 0_2_00462D80
Source: C:\Users\user\Desktop\gedanken.exe	Code function: 0_2_00462A65
Source: C:\Users\user\Desktop\gedanken.exe	Code function: 0_2_00461670
Source: C:\Users\user\Desktop\gedanken.exe	Code function: 0_2_00462E13
Source: C:\Users\user\Desktop\gedanken.exe	Code function: 0_2_00462ACB
Source: C:\Users\user\Desktop\gedanken.exe	Code function: 0_2_00462B08
Source: C:\Users\user\Desktop\gedanken.exe	Code function: 0_2_00462B88
Source: C:\Users\user\Desktop\gedanken.exe	Code function: 0_2_00462BB6

Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)

Show sources

Source: gedanken.exe

Binary or memory string: C:\PROGRAM FILES\QEMU-GA\QEMU-GA.EXE

Tries to detect virtualization through RDTSC time measurements

Show sources

Source: C:\Users\user\Desktop\gedanken.exe

RDTSC instruction interceptor: First address: 0000000000463681 second address: 0000000000463681 instructions: 0x00000000 rdtsc 0x00000002 xor eax, eax 0x00000004 inc eax 0x00000005 cpuid 0x00000007 popad 0x00000008 call 00007FDEBC8E5224h 0x0000000d lfence 0x00000010 mov edx, dword ptr [7FFE0014h] 0x00000016 lfence 0x00000019 ret 0x0000001a sub edx, esi 0x0000001c ret 0x0000001d test bl, bl 0x0000001f cmp bl, al 0x00000021 pop ecx 0x00000022 cmp edx, ecx 0x00000024 test al, dl 0x00000026 add edi, edx 0x00000028 jmp 00007FDEBC8E521Ah 0x0000002a cmp al, B6h 0x0000002c dec ecx 0x0000002d cmp dx, 0C52h 0x00000032 cmp ecx, 00000000h 0x00000035 jne 00007FDEBC8E51CAh 0x00000037 push ecx 0x00000038 call 00007FDEBC8E525Eh 0x0000003d call 00007FDEBC8E5234h 0x00000042 lfence 0x00000045 mov edx, dword ptr [7FFE0014h] 0x0000004b lfence 0x0000004e ret 0x0000004f mov esi, edx 0x00000051 pushad 0x00000052 rdtsc

Source: C:\Users\user\Desktop\gedanken.exe

Code function: 0_2_0040946F rdtsc

Source: all processes

Thread injection, dropped files, key value created, disk infection and DNS query: no activity detected

Source: gedanken.exe

Binary or memory string: C:\Program Files\Qemu-ga\qemu-ga.exe

Anti Debugging:

Found potential dummy code loops (likely to delay analysis)

Show sources

Source: C:\Users\user\Desktop\gedanken.exe

Process Stats: CPU usage > 90% for more than 60s

Source: C:\Users\user\Desktop\gedanken.exe

Code function: 0_2_0040946F rdtsc

Source: C:\Users\user\Desktop\gedanken.exe	Code function: 0_2_004620C0 mov eax, dword ptr fs:[00000030h]
Source: C:\Users\user\Desktop\gedanken.exe	Code function: 0_2_004634DA mov eax, dword ptr fs:[00000030h]
Source: C:\Users\user\Desktop\gedanken.exe	Code function: 0_2_004620BE mov eax, dword ptr fs:[00000030h]
Source: C:\Users\user\Desktop\gedanken.exe	Code function: 0_2_00465A03 mov eax, dword ptr fs:[00000030h]
Source: C:\Users\user\Desktop\gedanken.exe	Code function: 0_2_00461A8E mov eax, dword ptr fs:[00000030h]
Source: C:\Users\user\Desktop\gedanken.exe	Code function: 0_2_00466356 mov eax, dword ptr fs:[00000030h]
Source: C:\Users\user\Desktop\gedanken.exe	Code function: 0_2_0046635B mov eax, dword ptr fs:[00000030h]
Source: C:\Users\user\Desktop\gedanken.exe	Code function: 0_2_00462358 mov eax, dword ptr fs:[00000030h]
Source: C:\Users\user\Desktop\gedanken.exe	Code function: 0_2_0046233D mov eax, dword ptr fs:[00000030h]
Source: C:\Users\user\Desktop\gedanken.exe	Code function: 0_2_00462396 mov eax, dword ptr fs:[00000030h]
Source: C:\Users\user\Desktop\gedanken.exe	Code function: 0_2_004623B7 mov eax, dword ptr fs:[00000030h]

Source: all processes

Thread injection, dropped files, key value created, disk infection and DNS query: no activity detected

Source: gedanken.exe, 00000000.00000002.1169278487.0000000000DA0000.00000002.00000001.sdmp	Binary or memory string: Program Manager
Source: gedanken.exe, 00000000.00000002.1169278487.0000000000DA0000.00000002.00000001.sdmp	Binary or memory string: Shell_TrayWnd
Source: gedanken.exe, 00000000.00000002.1169278487.0000000000DA0000.00000002.00000001.sdmp	Binary or memory string: Progman
Source: gedanken.exe, 00000000.00000002.1169278487.0000000000DA0000.00000002.00000001.sdmp	Binary or memory string: Progmanlock

Source: C:\Users\user\Desktop\gedanken.exe

Code function: 0_2_004612AC cpuid

Mitre Att&ck Matrix

Initial Access	Execution	Persistence	Privilege Escalation	Defense Evasion	Credential Access	Discovery	Lateral Movement	Collection	Exfiltration	Command and Control	Network Effects	Remote Service Effects	Impact
Valid Accounts	Windows Management Instrumentation	Path Interception	Process Injection1	Virtualization/Sandbox Evasion11	OS Credential Dumping	Security Software Discovery411	Remote Services	Archive Collected Data1	Exfiltration Over Other Network Medium	Encrypted Channel1	Eavesdrop on Insecure Network Communication	Remotely Track Device Without Authorization	Modify System Partition
Default Accounts	Scheduled Task/Job	Boot or Logon Initialization Scripts	Boot or Logon Initialization Scripts	Process Injection1	LSASS Memory	Virtualization/Sandbox Evasion11	Remote Desktop Protocol	Data from Removable Media	Exfiltration Over Bluetooth	Junk Data	Exploit SS7 to Redirect Phone Calls/SMS	Remotely Wipe Data Without Authorization	Device Lockout
Domain Accounts	At (Linux)	Logon Script (Windows)	Logon Script (Windows)	Obfuscated Files or Information1	Security Account Manager	Process Discovery1	SMB/Windows Admin Shares	Data from Network Shared Drive	Automated Exfiltration	Steganography	Exploit SS7 to Track Device Location	Obtain Device Cloud Backups	Delete Device Data
Local Accounts	At (Windows)	Logon Script (Mac)	Logon Script (Mac)	Binary Padding	NTDS	System Information Discovery211	Distributed Component Object Model	Input Capture	Scheduled Transfer	Protocol Impersonation	SIM Card Swap		Carrier Billing Fraud

Behavior Graph

Hide Legend

Legend:

Process
Signature
Created File
DNS/IP Info
Is Dropped
Is Windows Process
Number of created Registry Values
Number of created Files
Visual Basic
Delphi
Java
.Net C# or VB.NET
C, C++ or other language
Is malicious
Internet

Screenshots

Thumbnails

This section contains all screenshots as thumbnails, including those not shown in the slideshow.

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

Source	Detection	Scanner	Label	Link
gedanken.exe	53%	Virustotal		Browse
gedanken.exe	50%	ReversingLabs	Win32.Trojan.GuLoader
gedanken.exe	100%	Joe Sandbox ML

Dropped Files

No Antivirus matches

Unpacked PE Files

No Antivirus matches

Domains

No Antivirus matches

URLs

No Antivirus matches

Domains and IPs

Contacted Domains

No contacted domains info

Contacted IPs

No contacted IP infos

General Information

Joe Sandbox Version:	31.0.0 Emerald
Analysis ID:	384219
Start date:	08.04.2021
Start time:	18:50:52
Joe Sandbox Product:	CloudBasic
Overall analysis duration:	0h 6m 45s
Hypervisor based Inspection enabled:	false
Report type:	light
Sample file name:	gedanken.exe
Cookbook file name:	default.jbs
Analysis system description:	Windows 10 64 bit v1803 with Office Professional Plus 2016, Chrome 85, IE 11, Adobe Reader DC 19, Java 8 Update 211
Number of analysed new started processes analysed:	17
Number of new started drivers analysed:	0
Number of existing processes analysed:	0
Number of existing drivers analysed:	0
Number of injected processes analysed:	0
Technologies:	HCA enabled EGA enabled HDC enabled AMSI enabled
Analysis Mode:	default
Analysis stop reason:	Timeout
Detection:	MAL
Classification:	mal80.troj.evad.winEXE@1/0@0/0
EGA Information:	Failed
HDC Information:	Successful, ratio: 32.8% (good quality ratio 16.5%) Quality average: 24.8% Quality standard deviation: 27.8%
HCA Information:	Failed
Cookbook Comments:	Adjust boot time Enable AMSI Found application associated with file extension: .exe Override analysis time to 240s for sample files taking high CPU consumption
Warnings:	Show All Exclude process from analysis (whitelisted): BackgroundTransferHost.exe, backgroundTaskHost.exe, svchost.exe, wuapihost.exe

Simulations

Behavior and APIs

No simulations

Joe Sandbox View / Context

IPs

No context

Domains

No context

ASN

No context

JA3 Fingerprints

No context

Dropped Files

No context

Created / dropped Files

No created / dropped files found

Static File Info

General
File type:	PE32 executable (GUI) Intel 80386, for MS Windows
Entropy (8bit):	5.658586008613306
TrID:	Win32 Executable (generic) a (10002005/4) 99.15% Win32 Executable Microsoft Visual Basic 6 (82127/2) 0.81% Generic Win/DOS Executable (2004/3) 0.02% DOS Executable Generic (2002/1) 0.02% Autodesk FLIC Image File (extensions: flc, fli, cel) (7/3) 0.00%
File name:	gedanken.exe
File size:	110592
MD5:	e2342da4c7a6ff102679cd487954dc5f
SHA1:	a5aec8579ab17e7378c5cff51eb321d55f2e3532
SHA256:	dc51b75c62afc72ad319d361366d01901a237343fe8dafc568fc0f38d9bc7f3a
SHA512:	23cf2857f305792f8318760ff36f2f3dc940598850afa4410136c0c3abec58df2c7eaceb463ab64d45b101bc4f4c9c1aa8d737e46876e8120ef244621ec77803
SSDEEP:	1536:4yPqW0672Qw+Q7jlNmY/2vL2M/FPVm9v6hRK1ZPVm9vDd2Mf2v:Viw73Yfxv8Vm2A1FVmy
File Content Preview:	MZ......................@...............................................!..L.!This program cannot be run in DOS mode....$........#...B...B...B..L^...B...`...B...d...B..Rich.B..........PE..L...i.rY.................0...................@....@................

File Icon


Icon Hash:	c0c6f2e0e4fefe3f

Static PE Info

General
Entrypoint:	0x4013e8
Entrypoint Section:	.text
Digitally signed:	false
Imagebase:	0x400000
Subsystem:	windows gui
Image File Characteristics:	LOCAL_SYMS_STRIPPED, 32BIT_MACHINE, EXECUTABLE_IMAGE, LINE_NUMS_STRIPPED, RELOCS_STRIPPED
DLL Characteristics:
Time Stamp:	0x5972E969 [Sat Jul 22 05:58:01 2017 UTC]
TLS Callbacks:
CLR (.Net) Version:
OS Version Major:	4
OS Version Minor:	0
File Version Major:	4
File Version Minor:	0
Subsystem Version Major:	4
Subsystem Version Minor:	0
Import Hash:	d1ed0dda3501483d16a7ad09b76f3b08

Entrypoint Preview

Instruction
push 00411514h
call 00007FDEBC9AD553h
add byte ptr [eax], al
add byte ptr [eax], al
add byte ptr [eax], al
xor byte ptr [eax], al
add byte ptr [eax], al
inc eax
add byte ptr [eax], al
add byte ptr [eax], al
add byte ptr [eax], al
add byte ptr [edx], al
pushf
sar dword ptr [esi+1Ah], cl
aad 44h
xchg byte ptr [eax-7Dh], cl
dec cx
dec esi
outsd
test byte ptr [eax], al
add byte ptr [eax], al
add byte ptr [eax], al
add byte ptr [ecx], al
add byte ptr [eax], al
add byte ptr [eax], al
add byte ptr [eax], 00000000h
add byte ptr [eax], al
jne 00007FDEBC9AD5CEh
popad
insb
jns 00007FDEBC9AD5D2h
je 00007FDEBC9AD5D7h
jnc 00007FDEBC9AD5D6h
jc 00007FDEBC9AD5C7h
jc 00007FDEBC9AD5D5h
add byte ptr [eax], al
add byte ptr [eax], al
add bh, bh
int3
xor dword ptr [eax], eax
or edx, dword ptr [eax+61079236h]
lea edi, dword ptr [esi-217365B3h]
je 00007FDEBC9AD5E0h
insd
push ds
in eax, 84h
fisttp dword ptr [esi]
sbb dword ptr [esi-01h], esp
cli
inc esp
test al, 32h
sti
shl dword ptr [eax], cl
out dx, eax
push ebp
imul edi, dword ptr [edx], 9933AD4Fh
iretw
adc dword ptr [edi+00AA000Ch], esi
pushad
rcl dword ptr [ebx+00000000h], cl
add byte ptr [eax], al
add byte ptr [eax], al
add byte ptr [eax], al
add byte ptr [eax], al
add byte ptr [eax], al
add byte ptr [eax], al
add byte ptr [eax], al
add byte ptr [eax], al
add byte ptr [eax], al
add byte ptr [eax], al
add byte ptr [eax], al
add byte ptr [eax], al
add byte ptr [eax], al
add byte ptr [eax], al
add byte ptr [eax], al
add byte ptr [eax], al

Data Directories

Name	Virtual Address	Virtual Size	Is in Section
IMAGE_DIRECTORY_ENTRY_EXPORT	0x0	0x0
IMAGE_DIRECTORY_ENTRY_IMPORT	0x13934	0x28	.text
IMAGE_DIRECTORY_ENTRY_RESOURCE	0x16000	0x5c3a	.rsrc
IMAGE_DIRECTORY_ENTRY_EXCEPTION	0x0	0x0
IMAGE_DIRECTORY_ENTRY_SECURITY	0x0	0x0
IMAGE_DIRECTORY_ENTRY_BASERELOC	0x0	0x0
IMAGE_DIRECTORY_ENTRY_DEBUG	0x0	0x0
IMAGE_DIRECTORY_ENTRY_COPYRIGHT	0x0	0x0
IMAGE_DIRECTORY_ENTRY_GLOBALPTR	0x0	0x0
IMAGE_DIRECTORY_ENTRY_TLS	0x0	0x0
IMAGE_DIRECTORY_ENTRY_LOAD_CONFIG	0x0	0x0
IMAGE_DIRECTORY_ENTRY_BOUND_IMPORT	0x228	0x20
IMAGE_DIRECTORY_ENTRY_IAT	0x1000	0x108	.text
IMAGE_DIRECTORY_ENTRY_DELAY_IMPORT	0x0	0x0
IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR	0x0	0x0
IMAGE_DIRECTORY_ENTRY_RESERVED	0x0	0x0

Sections

Name	Virtual Address	Virtual Size	Raw Size	Xored PE	ZLIB Complexity	File Type	Entropy	Characteristics
.text	0x1000	0x12ddc	0x13000	False	0.42867238898	data	6.08030531578	IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_READ
.data	0x14000	0x117c	0x1000	False	0.00634765625	data	0.0	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_WRITE, IMAGE_SCN_MEM_READ
.rsrc	0x16000	0x5c3a	0x6000	False	0.359700520833	data	5.27049873079	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ

Resources

Name	RVA	Size	Type	Language	Country
RT_ICON	0x1ad92	0xea8	data
RT_ICON	0x1a4ea	0x8a8	data
RT_ICON	0x19f82	0x568	GLS_BINARY_LSB_FIRST
RT_ICON	0x179da	0x25a8	dBase III DBT, version number 0, next free block index 40
RT_ICON	0x16932	0x10a8	data
RT_ICON	0x164ca	0x468	GLS_BINARY_LSB_FIRST
RT_GROUP_ICON	0x16470	0x5a	data
RT_VERSION	0x161e0	0x290	MS Windows COFF PA-RISC object file	Guarani	Paraguay

Imports

DLL

Import

MSVBVM60.DLL

_CIcos, _adj_fptan, __vbaVarMove, __vbaFreeVar, __vbaLineInputStr, __vbaStrVarMove, __vbaFreeVarList, _adj_fdiv_m64, _adj_fprem1, __vbaHresultCheckObj, __vbaLenBstrB, _adj_fdiv_m32, __vbaAryDestruct, __vbaOnError, _adj_fdiv_m16i, _adj_fdivr_m16i, __vbaFpR8, __vbaVarTstLt, _CIsin, __vbaChkstk, __vbaFileClose, EVENT_SINK_AddRef, __vbaGenerateBoundsError, __vbaStrCmp, __vbaAryConstruct2, __vbaObjVar, _adj_fpatan, EVENT_SINK_Release, _CIsqrt, EVENT_SINK_QueryInterface, __vbaExceptHandler, _adj_fprem, _adj_fdivr_m64, __vbaFPException, _CIlog, __vbaFileOpen, __vbaNew2, __vbaR8Str, _adj_fdiv_m32i, _adj_fdivr_m32i, __vbaStrCopy, _adj_fdivr_m32, _adj_fdiv_r, __vbaLateMemCall, __vbaVarAdd, __vbaVarDup, __vbaFpI4, _CIatan, __vbaStrMove, _allmul, _CItan, _CIexp, __vbaFreeStr, __vbaFreeObj

Version Infos

Description	Data
Translation	0x0474 0x04b0
InternalName	gedanken
FileVersion	1.00
CompanyName	Pana-sonic
Comments	Pana-sonic
ProductName	Pana-sonic
ProductVersion	1.00
FileDescription	Pana-sonic
OriginalFilename	gedanken.exe

Possible Origin

Language of compilation system	Country where language is spoken	Map
Guarani	Paraguay

Network Behavior

No network behavior found

Code Manipulations

Statistics

System Behavior

Analysis Process: gedanken.exe PID: 6880 Parent PID: 5912

General

Start time:	18:51:37
Start date:	08/04/2021
Path:	C:\Users\user\Desktop\gedanken.exe
Wow64 process (32bit):	true
Commandline:	'C:\Users\user\Desktop\gedanken.exe'
Imagebase:	0x400000
File size:	110592 bytes
MD5 hash:	E2342DA4C7A6FF102679CD487954DC5F
Has elevated privileges:	true
Has administrator privileges:	true
Programmed in:	Visual Basic
Yara matches:	Rule: JoeSecurity_GuLoader, Description: Yara detected GuLoader, Source: 00000000.00000002.1168805441.0000000000460000.00000040.00000001.sdmp, Author: Joe Security
Reputation:	low

Disassembly

Code Analysis

Reset < >

Description:	Adversaries may inject code into processes in order to evade process-based defenses as well as possibly elevate privileges. Process injection is a method of executing arbitrary code in the address space of a separate live process. Running code in the context of another process may allow access to the process's memory, system/network resources, and possibly elevated privileges. Execution via process injection may also evade detection from security products since the execution is masked under a legitimate process.
Tactics:	Defense Evasion, Privilege Escalation
Data Sources:	API monitoring, DLL monitoring, File monitoring, Named Pipes, Process monitoring
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may employ various means to detect and avoid virtualization and analysis environments. This may include changing behaviors based on the results of checks for the presence of artifacts indicative of a virtual machine environment (VME) or sandbox. If the adversary detects a VME, they may alter their malware to disengage from the victim or conceal the core functions of the implant. They may also search for VME artifacts before dropping secondary or additional payloads. Adversaries may use the information learned from [Virtualization/Sandbox Evasion](https://attack.mitre.org/techniques/T1497) during automated discovery to shape follow-on behaviors.
Tactics:	Defense Evasion, Discovery
Data Sources:	Process command-line parameters, Process monitoring
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may attempt to make an executable or file difficult to discover or analyze by encrypting, encoding, or otherwise obfuscating its contents on the system or in transit. This is common behavior that can be used across different platforms and the network to evade defenses.
Tactics:	Defense Evasion
Data Sources:	Binary file metadata, Email gateway, Environment variable, File monitoring, Malware reverse engineering, Network intrusion detection system, Network protocol analysis, Process command-line parameters, Process monitoring, Process use of network, SSL/TLS inspection, Windows event logs
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may attempt to get a listing of security software, configurations, defensive tools, and sensors that are installed on a system or in a cloud environment. This may include things such as firewall rules and anti-virus. Adversaries may use the information from Security Software Discovery during automated discovery to shape follow-on behaviors, including whether or not the adversary fully infects the target and/or attempts specific actions.
Tactics:	Discovery
Data Sources:	AWS CloudTrail logs, Azure activity logs, File monitoring, Process command-line parameters, Process monitoring, Stackdriver logs
Platforms:	AWS, Azure, Azure AD, GCP, Linux, macOS, Office 365, SaaS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may attempt to get information about running processes on a system. Information obtained could be used to gain an understanding of common software/applications running on systems within the network. Adversaries may use the information from Process Discovery during automated discovery to shape follow-on behaviors, including whether or not the adversary fully infects the target and/or attempts specific actions.
Tactics:	Discovery
Data Sources:	API monitoring, Process command-line parameters, Process monitoring
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	An adversary may attempt to get detailed information about the operating system and hardware, including version, patches, hotfixes, service packs, and architecture. Adversaries may use the information from System Information Discovery during automated discovery to shape follow-on behaviors, including whether or not the adversary fully infects the target and/or attempts specific actions.
Tactics:	Discovery
Data Sources:	AWS CloudTrail logs, Azure activity logs, Process command-line parameters, Process monitoring, Stackdriver logs
Platforms:	AWS, Azure, GCP, Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	An adversary may compress and/or encrypt data that is collected prior to exfiltration. Compressing the data can help to obfuscate the collected data and minimize the amount of data sent over the network. Encryption can be used to hide information that is being exfiltrated from detection or make exfiltration less conspicuous upon inspection by a defender.
Tactics:	Collection
Data Sources:	Binary file metadata, File monitoring, Process command-line parameters, Process monitoring
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may employ a known encryption algorithm to conceal command and control traffic rather than relying on any inherent protections provided by a communication protocol. Despite the use of a secure algorithm, these implementations may be vulnerable to reverse engineering if secret keys are encoded and/or generated within malware samples/configuration files.
Tactics:	Command and Control
Data Sources:	Malware reverse engineering, Netflow/Enclave netflow, Packet capture, Process monitoring, Process use of network, SSL/TLS inspection
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Behavior Section

Behavior Chronological

Disassembly

Uncategorized

Graph

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Warning!

Analysis Report gedanken.exe

Overview

General Information

Detection

Signatures

Classification

Startup

Malware Configuration

Yara Overview

Memory Dumps

Sigma Overview

Signature Overview

AV Detection:

Compliance:

System Summary:

Data Obfuscation:

Hooking and other Techniques for Hiding and Protection:

Malware Analysis System Evasion:

Anti Debugging:

HIPS / PFW / Operating System Protection Evasion:

Language, Device and Operating System Detection:

Mitre Att&ck Matrix

Behavior Graph

Screenshots

Thumbnails

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

Dropped Files

Unpacked PE Files

Domains

URLs

Domains and IPs

Contacted Domains

Contacted IPs

General Information

Simulations

Behavior and APIs

Joe Sandbox View / Context

IPs

Domains

ASN

JA3 Fingerprints

Dropped Files

Created / dropped Files

Static File Info

General

File Icon

Static PE Info

General

Entrypoint Preview

Data Directories

Sections

Resources

Imports

Version Infos

Possible Origin

Network Behavior

Code Manipulations

Statistics

System Behavior

Analysis Process: gedanken.exe PID: 6880 Parent PID: 5912

General

Disassembly

Code Analysis