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Analysis Report Zahlung_03242021_jpg.scr

Overview

General Information

Sample Name:	Zahlung_03242021_jpg.scr (renamed file extension from scr to exe)
Analysis ID:	377275
MD5:	6540b24ec7d131ccbc57624915f9180c
SHA1:	2c29267c98ff52bb6a44e3e3dca1c0d1c668c870
SHA256:	ea36f17e9a118b567da5b9be48f13527cdd109da17d5e5abb0809f9356622f9b
Infos:
Most interesting Screenshot:

Detection

GuLoader

Score:	76
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)

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 read the PEB

Found large amount of non-executed APIs

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

Zahlung_03242021_jpg.exe (PID: 6464 cmdline: 'C:\Users\user\Desktop\Zahlung_03242021_jpg.exe' MD5: 6540B24EC7D131CCBC57624915F9180C)

cleanup

Malware Configuration

No configs have been found

Yara Overview

Memory Dumps

Source	Rule	Description	Author	Strings
Process Memory Space: Zahlung_03242021_jpg.exe PID: 6464	JoeSecurity_VB6DownloaderGeneric	Yara detected VB6 Downloader Generic	Joe Security
Process Memory Space: Zahlung_03242021_jpg.exe PID: 6464	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: Zahlung_03242021_jpg.exe	Virustotal: Detection: 64%	Perma Link
Source: Zahlung_03242021_jpg.exe	Metadefender: Detection: 24%	Perma Link
Source: Zahlung_03242021_jpg.exe	ReversingLabs: Detection: 75%

Source: Zahlung_03242021_jpg.exe

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

Source: C:\Users\user\Desktop\Zahlung_03242021_jpg.exe

Process Stats: CPU usage > 98%

Source: Zahlung_03242021_jpg.exe

Static PE information: Resource name: RT_ICON type: GLS_BINARY_LSB_FIRST

Source: Zahlung_03242021_jpg.exe, 00000000.00000002.1158313985.0000000000417000.00000002.00020000.sdmp	Binary or memory string: OriginalFilenameConfidency.exe vs Zahlung_03242021_jpg.exe
Source: Zahlung_03242021_jpg.exe, 00000000.00000002.1159005735.0000000002B30000.00000004.00000001.sdmp	Binary or memory string: OriginalFilenameConfidency.exeFE2X/ vs Zahlung_03242021_jpg.exe
Source: Zahlung_03242021_jpg.exe	Binary or memory string: OriginalFilenameConfidency.exe vs Zahlung_03242021_jpg.exe

Source: Zahlung_03242021_jpg.exe

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

Source: classification engine

Classification label: mal76.troj.evad.winEXE@1/0@0/0

Source: C:\Users\user\Desktop\Zahlung_03242021_jpg.exe

File created: C:\Users\user\AppData\Local\Temp\~DF191876E3B643CC71.TMP

Jump to behavior

Source: Zahlung_03242021_jpg.exe

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

Source: C:\Users\user\Desktop\Zahlung_03242021_jpg.exe

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

Jump to behavior

Source: C:\Users\user\Desktop\Zahlung_03242021_jpg.exe

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

Jump to behavior

Source: Zahlung_03242021_jpg.exe	Virustotal: Detection: 64%
Source: Zahlung_03242021_jpg.exe	Metadefender: Detection: 24%
Source: Zahlung_03242021_jpg.exe	ReversingLabs: Detection: 75%

Data Obfuscation:

Yara detected GuLoader

Show sources

Source: Yara match

File source: Process Memory Space: Zahlung_03242021_jpg.exe PID: 6464, type: MEMORY

Yara detected VB6 Downloader Generic

Show sources

Source: Yara match

File source: Process Memory Space: Zahlung_03242021_jpg.exe PID: 6464, type: MEMORY

Source: C:\Users\user\Desktop\Zahlung_03242021_jpg.exe	Code function: 0_2_00408423 push ebp; retf	0_2_0040842F
Source: C:\Users\user\Desktop\Zahlung_03242021_jpg.exe	Code function: 0_2_00407EC0 pushfd ; ret	0_2_00407EE9
Source: C:\Users\user\Desktop\Zahlung_03242021_jpg.exe	Code function: 0_2_00405A91 push ebx; retf	0_2_00405B20
Source: C:\Users\user\Desktop\Zahlung_03242021_jpg.exe	Code function: 0_2_00405B72 push ebx; retf	0_2_00405B20
Source: C:\Users\user\Desktop\Zahlung_03242021_jpg.exe	Code function: 0_2_004053B8 push ecx; iretd	0_2_004053BB

Source: C:\Users\user\Desktop\Zahlung_03242021_jpg.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Users\user\Desktop\Zahlung_03242021_jpg.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Users\user\Desktop\Zahlung_03242021_jpg.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior

Malware Analysis System Evasion:

Contains functionality to detect hardware virtualization (CPUID execution measurement)

Show sources

Source: C:\Users\user\Desktop\Zahlung_03242021_jpg.exe	Code function: 0_2_02201294	0_2_02201294
Source: C:\Users\user\Desktop\Zahlung_03242021_jpg.exe	Code function: 0_2_02201310	0_2_02201310
Source: C:\Users\user\Desktop\Zahlung_03242021_jpg.exe	Code function: 0_2_02201378	0_2_02201378

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

Show sources

Source: Zahlung_03242021_jpg.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\Zahlung_03242021_jpg.exe	RDTSC instruction interceptor: First address: 0000000002204926 second address: 0000000002204926 instructions: 0x00000000 rdtsc 0x00000002 popad 0x00000003 cmp byte ptr [esi+ecx], 00000000h 0x00000007 je 00007FDEA0DE30ECh 0x00000009 inc ecx 0x0000000a cmp ecx, ebx 0x0000000c jnl 00007FDEA0DE306Ch 0x00000012 jmp 00007FDEA0DE315Eh 0x00000014 pushad 0x00000015 mov eax, 0000003Ch 0x0000001a rdtsc
Source: C:\Users\user\Desktop\Zahlung_03242021_jpg.exe	RDTSC instruction interceptor: First address: 0000000002204684 second address: 0000000002204684 instructions: 0x00000000 rdtsc 0x00000002 xor eax, eax 0x00000004 inc eax 0x00000005 cpuid 0x00000007 popad 0x00000008 call 00007FDEA0809995h 0x0000000d lfence 0x00000010 mov edx, dword ptr [7FFE0014h] 0x00000016 lfence 0x00000019 ret 0x0000001a sub edx, esi 0x0000001c ret 0x0000001d add edi, edx 0x0000001f cmp eax, 30D55D6Fh 0x00000024 dec dword ptr [ebp+000000F8h] 0x0000002a cmp dword ptr [ebp+000000F8h], 00000000h 0x00000031 jne 00007FDEA0809964h 0x00000033 test cx, bx 0x00000036 call 00007FDEA08099D2h 0x0000003b call 00007FDEA08099A5h 0x00000040 lfence 0x00000043 mov edx, dword ptr [7FFE0014h] 0x00000049 lfence 0x0000004c ret 0x0000004d mov esi, edx 0x0000004f pushad 0x00000050 rdtsc

Source: C:\Users\user\Desktop\Zahlung_03242021_jpg.exe

Code function: 0_2_0220467C rdtsc

0_2_0220467C

Source: C:\Users\user\Desktop\Zahlung_03242021_jpg.exe

API coverage: 0.3 %

Source: all processes

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

Source: Zahlung_03242021_jpg.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\Zahlung_03242021_jpg.exe

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

Source: C:\Users\user\Desktop\Zahlung_03242021_jpg.exe

Code function: 0_2_0220467C rdtsc

0_2_0220467C

Source: C:\Users\user\Desktop\Zahlung_03242021_jpg.exe	Code function: 0_2_02201A7C mov eax, dword ptr fs:[00000030h]	0_2_02201A7C
Source: C:\Users\user\Desktop\Zahlung_03242021_jpg.exe	Code function: 0_2_02201AAE mov eax, dword ptr fs:[00000030h]	0_2_02201AAE
Source: C:\Users\user\Desktop\Zahlung_03242021_jpg.exe	Code function: 0_2_02204AE0 mov eax, dword ptr fs:[00000030h]	0_2_02204AE0
Source: C:\Users\user\Desktop\Zahlung_03242021_jpg.exe	Code function: 0_2_02203B27 mov eax, dword ptr fs:[00000030h]	0_2_02203B27
Source: C:\Users\user\Desktop\Zahlung_03242021_jpg.exe	Code function: 0_2_0220439F mov eax, dword ptr fs:[00000030h]	0_2_0220439F
Source: C:\Users\user\Desktop\Zahlung_03242021_jpg.exe	Code function: 0_2_0220252F mov eax, dword ptr fs:[00000030h]	0_2_0220252F

Source: all processes

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

Source: Zahlung_03242021_jpg.exe, 00000000.00000002.1158507898.0000000000D70000.00000002.00000001.sdmp	Binary or memory string: Program Manager
Source: Zahlung_03242021_jpg.exe, 00000000.00000002.1158507898.0000000000D70000.00000002.00000001.sdmp	Binary or memory string: Shell_TrayWnd
Source: Zahlung_03242021_jpg.exe, 00000000.00000002.1158507898.0000000000D70000.00000002.00000001.sdmp	Binary or memory string: Progman
Source: Zahlung_03242021_jpg.exe, 00000000.00000002.1158507898.0000000000D70000.00000002.00000001.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	Virtualization/Sandbox Evasion11	OS Credential Dumping	Security Software Discovery411	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	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 Discovery21	Distributed Component Object Model	Input Capture	Scheduled Transfer	Protocol Impersonation	SIM Card Swap		Carrier Billing Fraud

Behavior Graph

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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.

Behavior Section

Behavior Chronological

Disassembly

Uncategorized

Graph

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Warning!

Analysis Report Zahlung_03242021_jpg.scr

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:

Mitre Att&ck Matrix

Behavior Graph

Screenshots

Thumbnails