Analysis

  • max time kernel
    70s
  • max time network
    130s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    25-11-2022 09:49

General

  • Target

    b2f09782cc6fdc575c78fb3b0ad252cc523a8df88fcbcf0e2829d4d750406128.exe

  • Size

    1.4MB

  • MD5

    e4592aeb6b33a38de3a80d3cfe12f7a3

  • SHA1

    ee685ae882f6e0fbd9ebaa1b6488e546ec24da97

  • SHA256

    b2f09782cc6fdc575c78fb3b0ad252cc523a8df88fcbcf0e2829d4d750406128

  • SHA512

    05486287224d9dbf09c241cdb402ca3d84fc90d6515012f1ed9d86ae136d4248689f50e03bf56402b55a4e87871dbd16261992b6340e0bee066fb20e81a9b23b

  • SSDEEP

    12288:H30mhGT/f7DSvWN1JuigLYVlaf+dhKeVnVBAzzpDzAK13LhHWUJ+eBlsi7ZZHEEs:kZzHSvi7AYaf+dk+gziK13lV6iLgb

Malware Config

Extracted

Family

snakekeylogger

C2

https://api.telegram.org/bot1634002210:AAGipukUEr-bNBgl2R1_hwFgfb9ez_v6wzE/sendMessage?chat_id=1401219117

Signatures

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 6 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Looks up external IP address via web service 3 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Program crash 1 IoCs
  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 25 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b2f09782cc6fdc575c78fb3b0ad252cc523a8df88fcbcf0e2829d4d750406128.exe
    "C:\Users\Admin\AppData\Local\Temp\b2f09782cc6fdc575c78fb3b0ad252cc523a8df88fcbcf0e2829d4d750406128.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1404
    • C:\Windows\SysWOW64\cmd.exe
      "cmd.exe" /c REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "DHL_FORM_0019268874" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\DHL_FORM_0019268874.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1500
      • C:\Windows\SysWOW64\reg.exe
        REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "DHL_FORM_0019268874" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\DHL_FORM_0019268874.exe"
        3⤵
        • Adds Run key to start application
        PID:848
    • C:\Users\Admin\AppData\Roaming\DHL_FORM_0019268874.exe
      "C:\Users\Admin\AppData\Roaming\DHL_FORM_0019268874.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:268
      • C:\Users\Admin\AppData\Roaming\DHL_FORM_0019268874.exe
        "C:\Users\Admin\AppData\Roaming\DHL_FORM_0019268874.exe"
        3⤵
        • Executes dropped EXE
        • Accesses Microsoft Outlook profiles
        • Modifies system certificate store
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        • outlook_office_path
        • outlook_win_path
        PID:1380
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1380 -s 1624
          4⤵
          • Loads dropped DLL
          • Program crash
          PID:852

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

2
T1112

Install Root Certificate

1
T1130

Credential Access

Credentials in Files

3
T1081

Discovery

System Information Discovery

1
T1082

Collection

Data from Local System

3
T1005

Email Collection

1
T1114

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Roaming\DHL_FORM_0019268874.exe
    Filesize

    1.4MB

    MD5

    e4592aeb6b33a38de3a80d3cfe12f7a3

    SHA1

    ee685ae882f6e0fbd9ebaa1b6488e546ec24da97

    SHA256

    b2f09782cc6fdc575c78fb3b0ad252cc523a8df88fcbcf0e2829d4d750406128

    SHA512

    05486287224d9dbf09c241cdb402ca3d84fc90d6515012f1ed9d86ae136d4248689f50e03bf56402b55a4e87871dbd16261992b6340e0bee066fb20e81a9b23b

  • C:\Users\Admin\AppData\Roaming\DHL_FORM_0019268874.exe
    Filesize

    1.4MB

    MD5

    e4592aeb6b33a38de3a80d3cfe12f7a3

    SHA1

    ee685ae882f6e0fbd9ebaa1b6488e546ec24da97

    SHA256

    b2f09782cc6fdc575c78fb3b0ad252cc523a8df88fcbcf0e2829d4d750406128

    SHA512

    05486287224d9dbf09c241cdb402ca3d84fc90d6515012f1ed9d86ae136d4248689f50e03bf56402b55a4e87871dbd16261992b6340e0bee066fb20e81a9b23b

  • C:\Users\Admin\AppData\Roaming\DHL_FORM_0019268874.exe
    Filesize

    1.4MB

    MD5

    e4592aeb6b33a38de3a80d3cfe12f7a3

    SHA1

    ee685ae882f6e0fbd9ebaa1b6488e546ec24da97

    SHA256

    b2f09782cc6fdc575c78fb3b0ad252cc523a8df88fcbcf0e2829d4d750406128

    SHA512

    05486287224d9dbf09c241cdb402ca3d84fc90d6515012f1ed9d86ae136d4248689f50e03bf56402b55a4e87871dbd16261992b6340e0bee066fb20e81a9b23b

  • \Users\Admin\AppData\Roaming\DHL_FORM_0019268874.exe
    Filesize

    1.4MB

    MD5

    e4592aeb6b33a38de3a80d3cfe12f7a3

    SHA1

    ee685ae882f6e0fbd9ebaa1b6488e546ec24da97

    SHA256

    b2f09782cc6fdc575c78fb3b0ad252cc523a8df88fcbcf0e2829d4d750406128

    SHA512

    05486287224d9dbf09c241cdb402ca3d84fc90d6515012f1ed9d86ae136d4248689f50e03bf56402b55a4e87871dbd16261992b6340e0bee066fb20e81a9b23b

  • \Users\Admin\AppData\Roaming\DHL_FORM_0019268874.exe
    Filesize

    1.4MB

    MD5

    e4592aeb6b33a38de3a80d3cfe12f7a3

    SHA1

    ee685ae882f6e0fbd9ebaa1b6488e546ec24da97

    SHA256

    b2f09782cc6fdc575c78fb3b0ad252cc523a8df88fcbcf0e2829d4d750406128

    SHA512

    05486287224d9dbf09c241cdb402ca3d84fc90d6515012f1ed9d86ae136d4248689f50e03bf56402b55a4e87871dbd16261992b6340e0bee066fb20e81a9b23b

  • \Users\Admin\AppData\Roaming\DHL_FORM_0019268874.exe
    Filesize

    1.4MB

    MD5

    e4592aeb6b33a38de3a80d3cfe12f7a3

    SHA1

    ee685ae882f6e0fbd9ebaa1b6488e546ec24da97

    SHA256

    b2f09782cc6fdc575c78fb3b0ad252cc523a8df88fcbcf0e2829d4d750406128

    SHA512

    05486287224d9dbf09c241cdb402ca3d84fc90d6515012f1ed9d86ae136d4248689f50e03bf56402b55a4e87871dbd16261992b6340e0bee066fb20e81a9b23b

  • \Users\Admin\AppData\Roaming\DHL_FORM_0019268874.exe
    Filesize

    1.4MB

    MD5

    e4592aeb6b33a38de3a80d3cfe12f7a3

    SHA1

    ee685ae882f6e0fbd9ebaa1b6488e546ec24da97

    SHA256

    b2f09782cc6fdc575c78fb3b0ad252cc523a8df88fcbcf0e2829d4d750406128

    SHA512

    05486287224d9dbf09c241cdb402ca3d84fc90d6515012f1ed9d86ae136d4248689f50e03bf56402b55a4e87871dbd16261992b6340e0bee066fb20e81a9b23b

  • \Users\Admin\AppData\Roaming\DHL_FORM_0019268874.exe
    Filesize

    1.4MB

    MD5

    e4592aeb6b33a38de3a80d3cfe12f7a3

    SHA1

    ee685ae882f6e0fbd9ebaa1b6488e546ec24da97

    SHA256

    b2f09782cc6fdc575c78fb3b0ad252cc523a8df88fcbcf0e2829d4d750406128

    SHA512

    05486287224d9dbf09c241cdb402ca3d84fc90d6515012f1ed9d86ae136d4248689f50e03bf56402b55a4e87871dbd16261992b6340e0bee066fb20e81a9b23b

  • \Users\Admin\AppData\Roaming\DHL_FORM_0019268874.exe
    Filesize

    1.4MB

    MD5

    e4592aeb6b33a38de3a80d3cfe12f7a3

    SHA1

    ee685ae882f6e0fbd9ebaa1b6488e546ec24da97

    SHA256

    b2f09782cc6fdc575c78fb3b0ad252cc523a8df88fcbcf0e2829d4d750406128

    SHA512

    05486287224d9dbf09c241cdb402ca3d84fc90d6515012f1ed9d86ae136d4248689f50e03bf56402b55a4e87871dbd16261992b6340e0bee066fb20e81a9b23b

  • memory/268-61-0x0000000000000000-mapping.dmp
  • memory/268-64-0x00000000012B0000-0x0000000001428000-memory.dmp
    Filesize

    1.5MB

  • memory/268-66-0x00000000005B0000-0x00000000005C4000-memory.dmp
    Filesize

    80KB

  • memory/268-67-0x00000000005D0000-0x00000000005D6000-memory.dmp
    Filesize

    24KB

  • memory/848-59-0x0000000000000000-mapping.dmp
  • memory/852-86-0x0000000000000000-mapping.dmp
  • memory/1380-69-0x0000000000080000-0x00000000000EA000-memory.dmp
    Filesize

    424KB

  • memory/1380-84-0x0000000000080000-0x00000000000EA000-memory.dmp
    Filesize

    424KB

  • memory/1380-74-0x00000000004641AE-mapping.dmp
  • memory/1380-76-0x0000000000080000-0x00000000000EA000-memory.dmp
    Filesize

    424KB

  • memory/1380-77-0x0000000000080000-0x00000000000EA000-memory.dmp
    Filesize

    424KB

  • memory/1380-71-0x0000000000080000-0x00000000000EA000-memory.dmp
    Filesize

    424KB

  • memory/1380-81-0x0000000000080000-0x00000000000EA000-memory.dmp
    Filesize

    424KB

  • memory/1380-72-0x0000000000080000-0x00000000000EA000-memory.dmp
    Filesize

    424KB

  • memory/1380-68-0x0000000000080000-0x00000000000EA000-memory.dmp
    Filesize

    424KB

  • memory/1404-54-0x0000000000920000-0x0000000000A98000-memory.dmp
    Filesize

    1.5MB

  • memory/1404-57-0x00000000004F0000-0x00000000004F6000-memory.dmp
    Filesize

    24KB

  • memory/1404-56-0x00000000020F0000-0x0000000002116000-memory.dmp
    Filesize

    152KB

  • memory/1404-55-0x0000000074F01000-0x0000000074F03000-memory.dmp
    Filesize

    8KB

  • memory/1500-58-0x0000000000000000-mapping.dmp