Analysis

  • max time kernel
    149s
  • max time network
    124s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15-05-2024 01:49

General

  • Target

    documents_24.5.13YTKargo.pdf.exe

  • Size

    588KB

  • MD5

    7f9adfa5c6ddb5471f7b391d037252b2

  • SHA1

    122645622b73002a2d8b8215d6573ab22523a0e2

  • SHA256

    f815285cda1f471dc22b3c4582d1c5fad00bacc7c5e76a08f289d7fae6a35bd4

  • SHA512

    5f8b6565006dd61e11da209aa1103ca4987bd397a19da5b38a782f61d7bae13c244a4ba2de78982803b764bdd45a831de382da61bbbf3c3ade4d307675a21ad8

  • SSDEEP

    12288:2rRgAXYMjhvPie/rByY7777777777777c99E4NQ2CMiH99dsgJJ8Z0WQoiQFzpgi:2dgAXYMFniyyXzEMCMid9prPwDajgSxF

Malware Config

Extracted

Family

snakekeylogger

Credentials
C2

https://scratchdreams.tk

Signatures

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • Snake Keylogger payload 1 IoCs
  • Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 1 IoCs
  • Detects executables referencing many email and collaboration clients. Observed in information stealers 1 IoCs
  • Detects executables with potential process hoocking 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.

  • 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
  • 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).

  • Creates scheduled task(s) 1 TTPs 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 12 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\documents_24.5.13YTKargo.pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\documents_24.5.13YTKargo.pdf.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:976
    • 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\documents_24.5.13YTKargo.pdf.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:448
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\EDqfTdWmvf.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1676
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\EDqfTdWmvf" /XML "C:\Users\Admin\AppData\Local\Temp\tmp6215.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1408
    • C:\Users\Admin\AppData\Local\Temp\documents_24.5.13YTKargo.pdf.exe
      "C:\Users\Admin\AppData\Local\Temp\documents_24.5.13YTKargo.pdf.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:3956

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

    c97786d72c8ed87f12446036f9667e5e

    SHA1

    1be6647ccdc96cd085e394e1f24b67174b3a68b5

    SHA256

    a073667b88f40b3bc4e98e146e07a8385532d2a07ad3bae2623de43a1092dfa0

    SHA512

    233620d0beb6b5e5d8ed700df3c0a2633eb0dd0dac7c3cc9f3cfb8d427e1787f752c838c0c29a66e5a4a459f4a13596a1921107da10ad27431c1dca792581e59

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_agwwhqsf.deu.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmp6215.tmp

    Filesize

    1KB

    MD5

    263fe21b185dece4d80a3faa4e8d3d18

    SHA1

    7a068dba53c5c35dca13cdf8f8f9a49709af3614

    SHA256

    6b5697a31660a07b571814bf3262147d03a08cde0794f42e015dbc5796607d15

    SHA512

    e63f46ae2a38b4b4ee1716199ac91360b1067f76e2dbed97f82398019618736b10d6923f07afe699751f4dbd810f221c1ec5c1368969e086de16375be9526c7c

  • memory/448-76-0x00000000074E0000-0x00000000074EA000-memory.dmp

    Filesize

    40KB

  • memory/448-22-0x0000000075220000-0x00000000759D0000-memory.dmp

    Filesize

    7.7MB

  • memory/448-79-0x00000000076A0000-0x00000000076AE000-memory.dmp

    Filesize

    56KB

  • memory/448-81-0x00000000077B0000-0x00000000077CA000-memory.dmp

    Filesize

    104KB

  • memory/448-82-0x0000000007790000-0x0000000007798000-memory.dmp

    Filesize

    32KB

  • memory/448-85-0x0000000075220000-0x00000000759D0000-memory.dmp

    Filesize

    7.7MB

  • memory/448-50-0x0000000006300000-0x000000000634C000-memory.dmp

    Filesize

    304KB

  • memory/448-15-0x0000000002850000-0x0000000002886000-memory.dmp

    Filesize

    216KB

  • memory/448-17-0x0000000075220000-0x00000000759D0000-memory.dmp

    Filesize

    7.7MB

  • memory/448-16-0x00000000052C0000-0x00000000058E8000-memory.dmp

    Filesize

    6.2MB

  • memory/448-20-0x0000000005F20000-0x0000000005F86000-memory.dmp

    Filesize

    408KB

  • memory/448-49-0x0000000006150000-0x000000000616E000-memory.dmp

    Filesize

    120KB

  • memory/448-19-0x0000000005240000-0x00000000052A6000-memory.dmp

    Filesize

    408KB

  • memory/448-64-0x0000000071A00000-0x0000000071A4C000-memory.dmp

    Filesize

    304KB

  • memory/448-18-0x00000000051A0000-0x00000000051C2000-memory.dmp

    Filesize

    136KB

  • memory/448-42-0x0000000075220000-0x00000000759D0000-memory.dmp

    Filesize

    7.7MB

  • memory/976-5-0x0000000075220000-0x00000000759D0000-memory.dmp

    Filesize

    7.7MB

  • memory/976-10-0x0000000008CB0000-0x0000000008D4C000-memory.dmp

    Filesize

    624KB

  • memory/976-1-0x00000000004E0000-0x000000000057A000-memory.dmp

    Filesize

    616KB

  • memory/976-2-0x00000000054D0000-0x0000000005A74000-memory.dmp

    Filesize

    5.6MB

  • memory/976-9-0x0000000006540000-0x00000000065A8000-memory.dmp

    Filesize

    416KB

  • memory/976-8-0x00000000053E0000-0x00000000053F6000-memory.dmp

    Filesize

    88KB

  • memory/976-7-0x00000000053D0000-0x00000000053E0000-memory.dmp

    Filesize

    64KB

  • memory/976-48-0x0000000075220000-0x00000000759D0000-memory.dmp

    Filesize

    7.7MB

  • memory/976-3-0x0000000004FC0000-0x0000000005052000-memory.dmp

    Filesize

    584KB

  • memory/976-6-0x00000000053A0000-0x00000000053C0000-memory.dmp

    Filesize

    128KB

  • memory/976-4-0x0000000004F70000-0x0000000004F7A000-memory.dmp

    Filesize

    40KB

  • memory/976-0-0x000000007522E000-0x000000007522F000-memory.dmp

    Filesize

    4KB

  • memory/1676-78-0x0000000007170000-0x0000000007181000-memory.dmp

    Filesize

    68KB

  • memory/1676-44-0x0000000075220000-0x00000000759D0000-memory.dmp

    Filesize

    7.7MB

  • memory/1676-75-0x0000000006F70000-0x0000000006F8A000-memory.dmp

    Filesize

    104KB

  • memory/1676-74-0x00000000075C0000-0x0000000007C3A000-memory.dmp

    Filesize

    6.5MB

  • memory/1676-62-0x00000000061F0000-0x000000000620E000-memory.dmp

    Filesize

    120KB

  • memory/1676-77-0x00000000071F0000-0x0000000007286000-memory.dmp

    Filesize

    600KB

  • memory/1676-52-0x0000000071A00000-0x0000000071A4C000-memory.dmp

    Filesize

    304KB

  • memory/1676-51-0x0000000006E40000-0x0000000006E72000-memory.dmp

    Filesize

    200KB

  • memory/1676-80-0x00000000071B0000-0x00000000071C4000-memory.dmp

    Filesize

    80KB

  • memory/1676-28-0x0000000005650000-0x00000000059A4000-memory.dmp

    Filesize

    3.3MB

  • memory/1676-47-0x0000000075220000-0x00000000759D0000-memory.dmp

    Filesize

    7.7MB

  • memory/1676-45-0x0000000075220000-0x00000000759D0000-memory.dmp

    Filesize

    7.7MB

  • memory/1676-89-0x0000000075220000-0x00000000759D0000-memory.dmp

    Filesize

    7.7MB

  • memory/1676-63-0x0000000006E80000-0x0000000006F23000-memory.dmp

    Filesize

    652KB

  • memory/3956-43-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/3956-90-0x00000000063A0000-0x00000000063F0000-memory.dmp

    Filesize

    320KB

  • memory/3956-91-0x00000000065C0000-0x0000000006782000-memory.dmp

    Filesize

    1.8MB