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Analysis Report cotizacion.exe

Overview

General Information

Sample Name:	cotizacion.exe
Analysis ID:	395265
MD5:	35f5d83dbc44b907d379c5ab35f725f8
SHA1:	745ba0ab77e726e01d3f2fca4506383948906e24
SHA256:	daf8d6de50e27c49b372d6cb0a7c6b7cd7a0946f959d13d3d3eb8d5d892c9eb7
Infos:
Most interesting Screenshot:

Detection

GuLoader

Score:	68
Range:	0 - 100
Whitelisted:	false
Confidence:	100%

Signatures

Icon mismatch, binary includes an icon from a different legit application in order to fool users

Multi AV Scanner detection for submitted file

Yara detected GuLoader

Machine Learning detection for sample

Found a high number of Window / User specific system calls (may be a loop to detect user behavior)

PE file contains an invalid checksum

PE file contains strange resources

Program does not show much activity (idle)

Sample execution stops while process was sleeping (likely an evasion)

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

cotizacion.exe (PID: 1976 cmdline: 'C:\Users\user\Desktop\cotizacion.exe' MD5: 35F5D83DBC44B907D379C5AB35F725F8)

cleanup

Malware Configuration

No configs have been found

Yara Overview

Initial Sample

Source	Rule	Description	Author	Strings
cotizacion.exe	JoeSecurity_GuLoader_1	Yara detected GuLoader	Joe Security

Memory Dumps

Source	Rule	Description	Author	Strings
00000000.00000002.493125170.0000000000401000.00000020.00020000.sdmp	JoeSecurity_GuLoader_1	Yara detected GuLoader	Joe Security
00000000.00000000.229099820.0000000000401000.00000020.00020000.sdmp	JoeSecurity_GuLoader_1	Yara detected GuLoader	Joe Security

Unpacked PEs

Source	Rule	Description	Author	Strings
0.0.cotizacion.exe.400000.0.unpack	JoeSecurity_GuLoader_1	Yara detected GuLoader	Joe Security
0.2.cotizacion.exe.400000.0.unpack	JoeSecurity_GuLoader_1	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: cotizacion.exe	Virustotal: Detection: 62%	Perma Link
Source: cotizacion.exe	Metadefender: Detection: 32%	Perma Link
Source: cotizacion.exe	ReversingLabs: Detection: 70%

Machine Learning detection for sample

Show sources

Source: cotizacion.exe

Joe Sandbox ML: detected

Source: cotizacion.exe

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

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

Source: cotizacion.exe, 00000000.00000002.493866250.00000000020A0000.00000002.00000001.sdmp	Binary or memory string: OriginalFilenameuser32j% vs cotizacion.exe
Source: cotizacion.exe, 00000000.00000002.493157991.000000000041A000.00000002.00020000.sdmp	Binary or memory string: OriginalFilenameForkvakledes.exe vs cotizacion.exe
Source: cotizacion.exe, 00000000.00000002.502916759.0000000004FA0000.00000002.00000001.sdmp	Binary or memory string: OriginalFilenameSHELL32.DLL.MUIj% vs cotizacion.exe
Source: cotizacion.exe, 00000000.00000002.494036894.0000000002200000.00000004.00000001.sdmp	Binary or memory string: OriginalFilenameForkvakledes.exeFE2XCluster-CCluster-C vs cotizacion.exe
Source: cotizacion.exe	Binary or memory string: OriginalFilenameForkvakledes.exe vs cotizacion.exe

Source: cotizacion.exe

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

Source: classification engine

Classification label: mal68.troj.winEXE@1/0@0/0

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

File created: C:\Users\user~1\AppData\Local\Temp\~DF8BE9C0E48D19B38F.TMP

Jump to behavior

Source: cotizacion.exe

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

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

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

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

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

Source: cotizacion.exe	Virustotal: Detection: 62%
Source: cotizacion.exe	Metadefender: Detection: 32%
Source: cotizacion.exe	ReversingLabs: Detection: 70%

Data Obfuscation:

Yara detected GuLoader

Show sources

Source: Yara match	File source: cotizacion.exe, type: SAMPLE
Source: Yara match	File source: 00000000.00000002.493125170.0000000000401000.00000020.00020000.sdmp, type: MEMORY
Source: Yara match	File source: 00000000.00000000.229099820.0000000000401000.00000020.00020000.sdmp, type: MEMORY
Source: Yara match	File source: 0.0.cotizacion.exe.400000.0.unpack, type: UNPACKEDPE
Source: Yara match	File source: 0.2.cotizacion.exe.400000.0.unpack, type: UNPACKEDPE

Source: cotizacion.exe

Static PE information: real checksum: 0x279ca should be: 0x1d63d

Source: C:\Users\user\Desktop\cotizacion.exe	Code function: 0_2_00407C52 push es; ret
Source: C:\Users\user\Desktop\cotizacion.exe	Code function: 0_2_00401275 push 02A3CF73h; iretd
Source: C:\Users\user\Desktop\cotizacion.exe	Code function: 0_2_00406E16 pushad ; ret
Source: C:\Users\user\Desktop\cotizacion.exe	Code function: 0_2_0040261A push es; retf
Source: C:\Users\user\Desktop\cotizacion.exe	Code function: 0_2_004078E3 pushad ; ret
Source: C:\Users\user\Desktop\cotizacion.exe	Code function: 0_2_004092E9 push es; ret
Source: C:\Users\user\Desktop\cotizacion.exe	Code function: 0_2_00409C8F push esi; iretd
Source: C:\Users\user\Desktop\cotizacion.exe	Code function: 0_2_00406C97 push cs; ret
Source: C:\Users\user\Desktop\cotizacion.exe	Code function: 0_2_00405140 push ss; retf
Source: C:\Users\user\Desktop\cotizacion.exe	Code function: 0_2_00407D73 pushad ; retf
Source: C:\Users\user\Desktop\cotizacion.exe	Code function: 0_2_00404D04 push es; ret
Source: C:\Users\user\Desktop\cotizacion.exe	Code function: 0_2_00405310 push ecx; ret
Source: C:\Users\user\Desktop\cotizacion.exe	Code function: 0_2_00403D1F push eax; ret
Source: C:\Users\user\Desktop\cotizacion.exe	Code function: 0_2_00404BD3 push es; retf
Source: C:\Users\user\Desktop\cotizacion.exe	Code function: 0_2_0040298C push ecx; retf
Source: C:\Users\user\Desktop\cotizacion.exe	Code function: 0_2_00403792 push eax; ret
Source: C:\Users\user\Desktop\cotizacion.exe	Code function: 0_2_004037AE push eax; ret
Source: C:\Users\user\Desktop\cotizacion.exe	Code function: 0_2_004029B7 push es; retf

Hooking and other Techniques for Hiding and Protection:

Icon mismatch, binary includes an icon from a different legit application in order to fool users

Show sources

Source: initial sample

Icon embedded in binary file: icon matches a legit application icon: download (71).png

Source: C:\Users\user\Desktop\cotizacion.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\cotizacion.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\cotizacion.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\cotizacion.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\cotizacion.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\cotizacion.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\cotizacion.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\cotizacion.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\cotizacion.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\cotizacion.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\cotizacion.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\cotizacion.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\cotizacion.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\cotizacion.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\cotizacion.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\cotizacion.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\cotizacion.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\cotizacion.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\cotizacion.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\cotizacion.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\cotizacion.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\cotizacion.exe	Process information set: NOOPENFILEERRORBOX

Source: C:\Users\user\Desktop\cotizacion.exe	Window / User API: threadDelayed 8041
Source: C:\Users\user\Desktop\cotizacion.exe	Window / User API: threadDelayed 1959

Source: all processes

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

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

Last function: Thread delayed

Source: all processes

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

Source: cotizacion.exe, 00000000.00000002.493462189.0000000000C20000.00000002.00000001.sdmp	Binary or memory string: uProgram Manager
Source: cotizacion.exe, 00000000.00000002.493462189.0000000000C20000.00000002.00000001.sdmp	Binary or memory string: Shell_TrayWnd
Source: cotizacion.exe, 00000000.00000002.493462189.0000000000C20000.00000002.00000001.sdmp	Binary or memory string: Progman
Source: cotizacion.exe, 00000000.00000002.493462189.0000000000C20000.00000002.00000001.sdmp	Binary or memory string: Progmanlock

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	Masquerading1	OS Credential Dumping	Process Discovery1	Remote Services	Data from Local System	Exfiltration Over Other Network Medium	Data Obfuscation	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	Application Window Discovery1	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	System Information 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

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
cotizacion.exe	63%	Virustotal		Browse
cotizacion.exe	32%	Metadefender		Browse
cotizacion.exe	70%	ReversingLabs	Win32.Trojan.VBObfuse
cotizacion.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:	395265
Start date:	22.04.2021
Start time:	11:16:18
Joe Sandbox Product:	CloudBasic
Overall analysis duration:	0h 4m 52s
Hypervisor based Inspection enabled:	false
Report type:	light
Sample file name:	cotizacion.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:	12
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:	mal68.troj.winEXE@1/0@0/0
EGA Information:	Successful, ratio: 100%
HDC Information:	Successful, ratio: 95.3% (good quality ratio 56.3%) Quality average: 28.7% Quality standard deviation: 26.6%
HCA Information:	Failed
Cookbook Comments:	Adjust boot time Enable AMSI Found application associated with file extension: .exe
Warnings:	Show All Exclude process from analysis (whitelisted): taskhostw.exe, MpCmdRun.exe, SgrmBroker.exe, conhost.exe, svchost.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):	5.714049017467046
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:	cotizacion.exe
File size:	118784
MD5:	35f5d83dbc44b907d379c5ab35f725f8
SHA1:	745ba0ab77e726e01d3f2fca4506383948906e24
SHA256:	daf8d6de50e27c49b372d6cb0a7c6b7cd7a0946f959d13d3d3eb8d5d892c9eb7
SHA512:	76404764d6eb8d7392207ced43ba52b39702bdcff84e0b3842af2fa35105000abdf8d1e8c34a778fceab651ae4f52369d6e85645e0452db49c53ade5cd37e775
SSDEEP:	1536:PA1ybwSbXGgN79EiSJ99mLUaYugzYxrm19Ko2o/1hQr5UOaM0tmxswXpuqltL:P0KbVN7VSDXUxrh0G
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....).M.................p...`......h.............@................

File Icon


Icon Hash:	c0c6f2e0e4fefe3f

Static PE Info

General
Entrypoint:	0x401968
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:	0x4DAB29E3 [Sun Apr 17 17:56:51 2011 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:	7677b40f5f8927412a58af017314f1ed

Entrypoint Preview

Instruction
push 0040F0A8h
call 00007FC704574F23h
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 [esi], dh
loopne 00007FC704574F21h
mov edx, 4F5D2BC2h
mov es, ax
dec ebp
dec ecx
push 00000037h
hlt
and dword ptr [eax], eax
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], al
add byte ptr [eax], al
add byte ptr [ebp+45h], cl
push esp
inc ecx
dec esp
dec edi
inc edi
dec ecx
inc ebx
inc ecx
dec esp
add byte ptr [eax], al
add byte ptr [eax], al
add byte ptr [eax], al
add byte ptr [eax], al
add bh, bh
int3
xor dword ptr [eax], eax
or al, ACh
sbb eax, dword ptr [esi]
push ebx
aaa
loop 00007FC704574ED9h
inc ebp
xchg eax, esi
and byte ptr [eax+4Fh], bl
lea ecx, dword ptr [esp+esi]
je 00007FC704574F4Ch
in al, dx
or al, D1h
and cl, bl
call far 69DBh : CB71A849h
xchg eax, edi
wait

Data Directories

Name	Virtual Address	Virtual Size	Is in Section
IMAGE_DIRECTORY_ENTRY_EXPORT	0x0	0x0
IMAGE_DIRECTORY_ENTRY_IMPORT	0x17324	0x28	.text
IMAGE_DIRECTORY_ENTRY_RESOURCE	0x1a000	0x383a	.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	0x1a8	.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	0x16908	0x17000	False	0.442064368207	data	6.09226152403	IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_READ
.data	0x18000	0x1260	0x1000	False	0.00634765625	data	0.0	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_WRITE, IMAGE_SCN_MEM_READ
.rsrc	0x1a000	0x383a	0x4000	False	0.462524414062	data	5.1445020687	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ

Resources

Name	RVA	Size	Type	Language	Country
RT_ICON	0x1cf92	0x8a8	data
RT_ICON	0x1c8ca	0x6c8	data
RT_ICON	0x1c362	0x568	GLS_BINARY_LSB_FIRST
RT_ICON	0x1b2ba	0x10a8	data
RT_ICON	0x1a932	0x988	data
RT_ICON	0x1a4ca	0x468	GLS_BINARY_LSB_FIRST
RT_GROUP_ICON	0x1a470	0x5a	data
RT_VERSION	0x1a1e0	0x290	MS Windows COFF PA-RISC object file	English	United States

Imports

DLL

Import

MSVBVM60.DLL

_CIcos, _adj_fptan, __vbaVarMove, __vbaFreeVar, __vbaLenBstr, __vbaStrVarMove, __vbaFreeVarList, __vbaEnd, _adj_fdiv_m64, __vbaFreeObjList, _adj_fprem1, __vbaSetSystemError, __vbaHresultCheckObj, __vbaLenBstrB, _adj_fdiv_m32, __vbaAryDestruct, __vbaOnError, __vbaObjSet, _adj_fdiv_m16i, __vbaObjSetAddref, _adj_fdivr_m16i, __vbaFpR8, __vbaVarTstLt, _CIsin, __vbaChkstk, EVENT_SINK_AddRef, __vbaStrCmp, __vbaObjVar, DllFunctionCall, _adj_fpatan, EVENT_SINK_Release, _CIsqrt, EVENT_SINK_QueryInterface, __vbaExceptHandler, _adj_fprem, _adj_fdivr_m64, __vbaFPException, __vbaStrVarVal, _CIlog, __vbaNew2, __vbaInStr, _adj_fdiv_m32i, _adj_fdivr_m32i, __vbaStrCopy, __vbaI4Str, __vbaFreeStrList, _adj_fdivr_m32, _adj_fdiv_r, __vbaVarTstNe, __vbaLateMemCall, __vbaVarAdd, __vbaStrToAnsi, __vbaVarDup, __vbaFpI4, __vbaLateMemCallLd, _CIatan, __vbaStrMove, _allmul, __vbaLateIdSt, _CItan, __vbaFPInt, _CIexp, __vbaFreeStr, __vbaFreeObj

Version Infos

Description	Data
Translation	0x0409 0x04b0
InternalName	Forkvakledes
FileVersion	1.00
CompanyName	Cluster-C
Comments	Cluster-C
ProductName	Cluster-C
ProductVersion	1.00
FileDescription	Cluster-C
OriginalFilename	Forkvakledes.exe

Possible Origin

Language of compilation system	Country where language is spoken	Map
English	United States

Network Behavior

No network behavior found

Code Manipulations

Statistics

System Behavior

Analysis Process: cotizacion.exe PID: 1976 Parent PID: 5576

General

Start time:	11:17:10
Start date:	22/04/2021
Path:	C:\Users\user\Desktop\cotizacion.exe
Wow64 process (32bit):	true
Commandline:	'C:\Users\user\Desktop\cotizacion.exe'
Imagebase:	0x400000
File size:	118784 bytes
MD5 hash:	35F5D83DBC44B907D379C5AB35F725F8
Has elevated privileges:	true
Has administrator privileges:	true
Programmed in:	Visual Basic
Yara matches:	Rule: JoeSecurity_GuLoader_1, Description: Yara detected GuLoader, Source: 00000000.00000002.493125170.0000000000401000.00000020.00020000.sdmp, Author: Joe Security Rule: JoeSecurity_GuLoader_1, Description: Yara detected GuLoader, Source: 00000000.00000000.229099820.0000000000401000.00000020.00020000.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 attempt to manipulate features of their artifacts to make them appear legitimate or benign to users and/or security tools. Masquerading occurs when the name or location of an object, legitimate or malicious, is manipulated or abused for the sake of evading defenses and observation. This may include manipulating file metadata, tricking users into misidentifying the file type, and giving legitimate task or service names.
Tactics:	Defense Evasion
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 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 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:	Adversaries may attempt to get a listing of open application windows. Window listings could convey information about how the system is used or give context to information collected by a keylogger.
Tactics:	Discovery
Data Sources:	API monitoring, Process command-line parameters, Process monitoring
Platforms:	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

Behavior Section

Behavior Chronological

Disassembly

Uncategorized

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Analysis Report cotizacion.exe

Overview

General Information

Detection

Signatures

Classification

Startup

Malware Configuration

Yara Overview

Initial Sample

Memory Dumps

Unpacked PEs

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:

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: cotizacion.exe PID: 1976 Parent PID: 5576

General

Disassembly

Code Analysis