Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09-10-2024 02:25

General

  • Target

    tax-invoice-0711.exe

  • Size

    526KB

  • MD5

    d25d303ca9ec88e005cbab9f35d4d210

  • SHA1

    3c037df248b5b25e139cc7fc6142e6cd371446a3

  • SHA256

    dcf3ebaa281f05217097685b485ab9b56711ed87679cf755ee82ebfa4479c01e

  • SHA512

    fe416e58f5f32c7807bba84bd3c33376130a841e89afc7b4c3fd10d38c779d1fb1636a4f85501d69e99e8b9aca06ec65538667daa64ccdb259522e584feb00c1

  • SSDEEP

    12288:xf0D4BQWzdAUxsfSWSLne4ZdzkpnRmkYwhX83X4Nu1jW:xhQQZxmoze47KRmkYwxmXk6S

Malware Config

Extracted

Family

snakekeylogger

C2

https://api.telegram.org/bot6515689087:AAEnerpIS1xuf83Wz7mf2-PPkvlmor9Mt7U/sendMessage?chat_id=1015404316

Signatures

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • Snake Keylogger payload 1 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Looks up external IP address via web service 1 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).

  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\tax-invoice-0711.exe
    "C:\Users\Admin\AppData\Local\Temp\tax-invoice-0711.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3184
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\tax-invoice-0711.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3460
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\xPtoEZCT.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:520
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\xPtoEZCT" /XML "C:\Users\Admin\AppData\Local\Temp\tmpCE0E.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2356
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:2184

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

    Filesize

    2KB

    MD5

    968cb9309758126772781b83adb8a28f

    SHA1

    8da30e71accf186b2ba11da1797cf67f8f78b47c

    SHA256

    92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

    SHA512

    4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

    Filesize

    18KB

    MD5

    ad71b1c767844548144be15e8adf1083

    SHA1

    4ffa5dcb62755282d34d97f62526dc5e3a1c7616

    SHA256

    7617cc17511d971f323530d691eeacb2d47c1670120aef72e4b415411f819bfe

    SHA512

    5e315022636b9b7fd9bbc8ae7ce10576df0aea572a573d3d8f024fa072817eca411dba765ba09cc731bd8fff909a09faf9bb4c56799817321ab9b20316e5a034

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_3dq4gl2k.p1p.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmpCE0E.tmp

    Filesize

    1KB

    MD5

    26f02a1c10527bbac018db1d7da6ec06

    SHA1

    1aecad2537c09dd581afa6769cef2e024f40638b

    SHA256

    e225f78a7e6ccce065e1f98d393734867618b8349a093d05e7134f04b35a0ec6

    SHA512

    0e09f1ab23126f06b510a533b2909bdf412cbb7cd44d6de3bc3cd4650182d9e2c71c38342829047339274c176229dcb67f48314b92a5b30376691155c2991740

  • memory/520-19-0x0000000075140000-0x00000000758F0000-memory.dmp

    Filesize

    7.7MB

  • memory/520-89-0x0000000075140000-0x00000000758F0000-memory.dmp

    Filesize

    7.7MB

  • memory/520-80-0x0000000007410000-0x0000000007424000-memory.dmp

    Filesize

    80KB

  • memory/520-50-0x0000000006020000-0x000000000606C000-memory.dmp

    Filesize

    304KB

  • memory/520-73-0x00000000070A0000-0x0000000007143000-memory.dmp

    Filesize

    652KB

  • memory/520-27-0x0000000075140000-0x00000000758F0000-memory.dmp

    Filesize

    7.7MB

  • memory/520-82-0x00000000074F0000-0x00000000074F8000-memory.dmp

    Filesize

    32KB

  • memory/520-63-0x00000000717C0000-0x000000007180C000-memory.dmp

    Filesize

    304KB

  • memory/520-21-0x0000000075140000-0x00000000758F0000-memory.dmp

    Filesize

    7.7MB

  • memory/520-78-0x00000000073D0000-0x00000000073E1000-memory.dmp

    Filesize

    68KB

  • memory/520-49-0x0000000005EB0000-0x0000000005ECE000-memory.dmp

    Filesize

    120KB

  • memory/520-81-0x0000000007510000-0x000000000752A000-memory.dmp

    Filesize

    104KB

  • memory/520-74-0x0000000007810000-0x0000000007E8A000-memory.dmp

    Filesize

    6.5MB

  • memory/2184-90-0x0000000006310000-0x0000000006360000-memory.dmp

    Filesize

    320KB

  • memory/2184-91-0x0000000006530000-0x00000000066F2000-memory.dmp

    Filesize

    1.8MB

  • memory/2184-28-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/3184-8-0x0000000075140000-0x00000000758F0000-memory.dmp

    Filesize

    7.7MB

  • memory/3184-10-0x0000000006A30000-0x0000000006ACC000-memory.dmp

    Filesize

    624KB

  • memory/3184-9-0x00000000068B0000-0x0000000006918000-memory.dmp

    Filesize

    416KB

  • memory/3184-7-0x000000007514E000-0x000000007514F000-memory.dmp

    Filesize

    4KB

  • memory/3184-0-0x000000007514E000-0x000000007514F000-memory.dmp

    Filesize

    4KB

  • memory/3184-6-0x0000000005A70000-0x0000000005A88000-memory.dmp

    Filesize

    96KB

  • memory/3184-40-0x0000000075140000-0x00000000758F0000-memory.dmp

    Filesize

    7.7MB

  • memory/3184-5-0x00000000055C0000-0x00000000055CA000-memory.dmp

    Filesize

    40KB

  • memory/3184-4-0x0000000075140000-0x00000000758F0000-memory.dmp

    Filesize

    7.7MB

  • memory/3184-3-0x00000000055F0000-0x0000000005682000-memory.dmp

    Filesize

    584KB

  • memory/3184-2-0x0000000005B00000-0x00000000060A4000-memory.dmp

    Filesize

    5.6MB

  • memory/3184-1-0x0000000000B60000-0x0000000000BEA000-memory.dmp

    Filesize

    552KB

  • memory/3460-23-0x00000000054E0000-0x0000000005546000-memory.dmp

    Filesize

    408KB

  • memory/3460-51-0x0000000007280000-0x00000000072B2000-memory.dmp

    Filesize

    200KB

  • memory/3460-62-0x0000000007260000-0x000000000727E000-memory.dmp

    Filesize

    120KB

  • memory/3460-75-0x0000000007620000-0x000000000763A000-memory.dmp

    Filesize

    104KB

  • memory/3460-76-0x0000000007690000-0x000000000769A000-memory.dmp

    Filesize

    40KB

  • memory/3460-77-0x00000000078A0000-0x0000000007936000-memory.dmp

    Filesize

    600KB

  • memory/3460-52-0x00000000717C0000-0x000000007180C000-memory.dmp

    Filesize

    304KB

  • memory/3460-79-0x0000000007850000-0x000000000785E000-memory.dmp

    Filesize

    56KB

  • memory/3460-25-0x0000000075140000-0x00000000758F0000-memory.dmp

    Filesize

    7.7MB

  • memory/3460-26-0x0000000005CB0000-0x0000000006004000-memory.dmp

    Filesize

    3.3MB

  • memory/3460-24-0x0000000005550000-0x00000000055B6000-memory.dmp

    Filesize

    408KB

  • memory/3460-22-0x0000000005440000-0x0000000005462000-memory.dmp

    Filesize

    136KB

  • memory/3460-88-0x0000000075140000-0x00000000758F0000-memory.dmp

    Filesize

    7.7MB

  • memory/3460-18-0x00000000055E0000-0x0000000005C08000-memory.dmp

    Filesize

    6.2MB

  • memory/3460-17-0x0000000075140000-0x00000000758F0000-memory.dmp

    Filesize

    7.7MB

  • memory/3460-16-0x0000000075140000-0x00000000758F0000-memory.dmp

    Filesize

    7.7MB

  • memory/3460-15-0x00000000029D0000-0x0000000002A06000-memory.dmp

    Filesize

    216KB