Analysis Report ZP1H92DwTq.exe

Overview

General Information

Sample Name: ZP1H92DwTq.exe
Analysis ID: 342865
MD5: 3421ebb45a538c5044d484703448f2a7
SHA1: 15766bfdbd612d174ee233dce4d466880728f8f3
SHA256: 8d2f6b5af6dee6568c8d9f58a3a618b47964bef00531f15063ed2e289d7e2abf
Tags: exeGuLoader

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
Detected RDTSC dummy instruction sequence (likely for instruction hammering)
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
Detected potential crypto function
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

AV Detection:

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Multi AV Scanner detection for submitted file
Source: ZP1H92DwTq.exe Virustotal: Detection: 10% Perma Link

Compliance:

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Uses 32bit PE files
Source: ZP1H92DwTq.exe Static PE information: LOCAL_SYMS_STRIPPED, 32BIT_MACHINE, EXECUTABLE_IMAGE, LINE_NUMS_STRIPPED, RELOCS_STRIPPED

System Summary:

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Abnormal high CPU Usage
Source: C:\Users\user\Desktop\ZP1H92DwTq.exe Process Stats: CPU usage > 98%
Detected potential crypto function
Source: C:\Users\user\Desktop\ZP1H92DwTq.exe Code function: 0_2_0040745A 0_2_0040745A
PE file contains strange resources
Source: ZP1H92DwTq.exe Static PE information: Resource name: RT_ICON type: GLS_BINARY_LSB_FIRST
Sample file is different than original file name gathered from version info
Source: ZP1H92DwTq.exe, 00000000.00000002.1287998410.0000000000417000.00000002.00020000.sdmp Binary or memory string: OriginalFilenameEmbedshaver.exe vs ZP1H92DwTq.exe
Source: ZP1H92DwTq.exe, 00000000.00000002.1289452903.00000000020A0000.00000002.00000001.sdmp Binary or memory string: OriginalFilenameuser32j% vs ZP1H92DwTq.exe
Source: ZP1H92DwTq.exe Binary or memory string: OriginalFilenameEmbedshaver.exe vs ZP1H92DwTq.exe
Uses 32bit PE files
Source: ZP1H92DwTq.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\ZP1H92DwTq.exe File created: C:\Users\user\AppData\Local\Temp\~DFC8EC25548F2904F8.TMP Jump to behavior
Source: ZP1H92DwTq.exe Static PE information: Section: .text IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_READ
Source: C:\Users\user\Desktop\ZP1H92DwTq.exe Section loaded: C:\Windows\SysWOW64\msvbvm60.dll Jump to behavior
Source: C:\Users\user\Desktop\ZP1H92DwTq.exe Key opened: HKEY_CURRENT_USER\Software\Policies\Microsoft\Windows\Safer\CodeIdentifiers Jump to behavior
Source: ZP1H92DwTq.exe Virustotal: Detection: 10%

Data Obfuscation:

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Yara detected GuLoader
Source: Yara match File source: Process Memory Space: ZP1H92DwTq.exe PID: 4404, type: MEMORY
Yara detected VB6 Downloader Generic
Source: Yara match File source: Process Memory Space: ZP1H92DwTq.exe PID: 4404, type: MEMORY
Uses code obfuscation techniques (call, push, ret)
Source: C:\Users\user\Desktop\ZP1H92DwTq.exe Code function: 0_2_00404851 push 1C000090h; iretd 0_2_0040487A
Source: C:\Users\user\Desktop\ZP1H92DwTq.exe Code function: 0_2_004044FE push esi; iretd 0_2_004044FF
Source: C:\Users\user\Desktop\ZP1H92DwTq.exe Code function: 0_2_004092DF push 00000043h; iretd 0_2_004092E3
Source: C:\Users\user\Desktop\ZP1H92DwTq.exe Code function: 0_2_004063D8 push ds; retf 0_2_004063DB
Source: C:\Users\user\Desktop\ZP1H92DwTq.exe Code function: 0_2_020B32BC pushfd ; iretd 0_2_020B32BD
Source: initial sample Static PE information: section name: .text entropy: 6.92993143866
Source: C:\Users\user\Desktop\ZP1H92DwTq.exe Process information set: NOOPENFILEERRORBOX Jump to behavior

Malware Analysis System Evasion:

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Detected RDTSC dummy instruction sequence (likely for instruction hammering)
Source: C:\Users\user\Desktop\ZP1H92DwTq.exe RDTSC instruction interceptor: First address: 00000000020B0290 second address: 00000000020B0290 instructions:
Source: C:\Users\user\Desktop\ZP1H92DwTq.exe RDTSC instruction interceptor: First address: 00000000020B0391 second address: 00000000020B0391 instructions:
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Source: ZP1H92DwTq.exe Binary or memory string: C:\PROGRAM FILES\QEMU-GA\QEMU-GA.EXE
Tries to detect virtualization through RDTSC time measurements
Source: C:\Users\user\Desktop\ZP1H92DwTq.exe RDTSC instruction interceptor: First address: 00000000020B0290 second address: 00000000020B0290 instructions:
Source: C:\Users\user\Desktop\ZP1H92DwTq.exe RDTSC instruction interceptor: First address: 00000000020B0391 second address: 00000000020B0391 instructions:
Source: C:\Users\user\Desktop\ZP1H92DwTq.exe RDTSC instruction interceptor: First address: 00000000020B2B65 second address: 00000000020B2B65 instructions: 0x00000000 rdtsc 0x00000002 xor eax, eax 0x00000004 inc eax 0x00000005 cpuid 0x00000007 popad 0x00000008 call 00007F375D0517B8h 0x0000000d lfence 0x00000010 mov edx, dword ptr [7FFE0014h] 0x00000016 lfence 0x00000019 ret 0x0000001a sub edx, esi 0x0000001c ret 0x0000001d jmp 00007F375D0517D2h 0x0000001f cmp cx, cx 0x00000022 pop ecx 0x00000023 add edi, edx 0x00000025 test bh, 00000073h 0x00000028 dec ecx 0x00000029 cmp ecx, 00000000h 0x0000002c jne 00007F375D05177Bh 0x0000002e push ecx 0x0000002f call 00007F375D051818h 0x00000034 call 00007F375D0517C8h 0x00000039 lfence 0x0000003c mov edx, dword ptr [7FFE0014h] 0x00000042 lfence 0x00000045 ret 0x00000046 mov esi, edx 0x00000048 pushad 0x00000049 rdtsc
Contains functionality for execution timing, often used to detect debuggers
Source: C:\Users\user\Desktop\ZP1H92DwTq.exe Code function: 0_2_020B1A11 rdtsc 0_2_020B1A11
Program does not show much activity (idle)
Source: all processes Thread injection, dropped files, key value created, disk infection and DNS query: no activity detected
Source: ZP1H92DwTq.exe Binary or memory string: C:\Program Files\Qemu-ga\qemu-ga.exe

Anti Debugging:

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Found potential dummy code loops (likely to delay analysis)
Source: C:\Users\user\Desktop\ZP1H92DwTq.exe Process Stats: CPU usage > 90% for more than 60s
Contains functionality for execution timing, often used to detect debuggers
Source: C:\Users\user\Desktop\ZP1H92DwTq.exe Code function: 0_2_020B1A11 rdtsc 0_2_020B1A11
Contains functionality to read the PEB
Source: C:\Users\user\Desktop\ZP1H92DwTq.exe Code function: 0_2_020B5799 mov eax, dword ptr fs:[00000030h] 0_2_020B5799
Source: C:\Users\user\Desktop\ZP1H92DwTq.exe Code function: 0_2_020B5793 mov eax, dword ptr fs:[00000030h] 0_2_020B5793
Source: C:\Users\user\Desktop\ZP1H92DwTq.exe Code function: 0_2_020B1BF8 mov eax, dword ptr fs:[00000030h] 0_2_020B1BF8
Source: C:\Users\user\Desktop\ZP1H92DwTq.exe Code function: 0_2_020B4800 mov eax, dword ptr fs:[00000030h] 0_2_020B4800
Source: C:\Users\user\Desktop\ZP1H92DwTq.exe Code function: 0_2_020B1C00 mov eax, dword ptr fs:[00000030h] 0_2_020B1C00
Source: C:\Users\user\Desktop\ZP1H92DwTq.exe Code function: 0_2_020B5017 mov eax, dword ptr fs:[00000030h] 0_2_020B5017
Source: C:\Users\user\Desktop\ZP1H92DwTq.exe Code function: 0_2_020B14A4 mov eax, dword ptr fs:[00000030h] 0_2_020B14A4
Source: C:\Users\user\Desktop\ZP1H92DwTq.exe Code function: 0_2_020B19B6 mov eax, dword ptr fs:[00000030h] 0_2_020B19B6
Source: C:\Users\user\Desktop\ZP1H92DwTq.exe Code function: 0_2_020B29E0 mov eax, dword ptr fs:[00000030h] 0_2_020B29E0
Program does not show much activity (idle)
Source: all processes Thread injection, dropped files, key value created, disk infection and DNS query: no activity detected
Source: ZP1H92DwTq.exe, 00000000.00000002.1289038706.0000000000C20000.00000002.00000001.sdmp Binary or memory string: Program Manager
Source: ZP1H92DwTq.exe, 00000000.00000002.1289038706.0000000000C20000.00000002.00000001.sdmp Binary or memory string: Shell_TrayWnd
Source: ZP1H92DwTq.exe, 00000000.00000002.1289038706.0000000000C20000.00000002.00000001.sdmp Binary or memory string: Progman
Source: ZP1H92DwTq.exe, 00000000.00000002.1289038706.0000000000C20000.00000002.00000001.sdmp Binary or memory string: Progmanlock
windows-stand
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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
behaviorgraph top1 signatures2 2 Behavior Graph ID: 342865 Sample: ZP1H92DwTq.exe Startdate: 21/01/2021 Architecture: WINDOWS Score: 76 8 Multi AV Scanner detection for submitted file 2->8 10 Yara detected GuLoader 2->10 12 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 2->12 14 Yara detected VB6 Downloader Generic 2->14 5 ZP1H92DwTq.exe 1 2->5         started        process3 signatures4 16 Detected RDTSC dummy instruction sequence (likely for instruction hammering) 5->16 18 Found potential dummy code loops (likely to delay analysis) 5->18 20 Tries to detect virtualization through RDTSC time measurements 5->20
No contacted IP infos