Analysis

  • max time kernel
    94s
  • max time network
    98s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06-10-2024 02:30

General

  • Target

    3ef3d036ce3461514a05633df722905d738b93311b67ed3ed7b7707e654e7af3N.exe

  • Size

    667KB

  • MD5

    050e6b2d0613fae1b6d8df6e75fcea50

  • SHA1

    0b22613068fd49e91e2bc7506421032f02d43ff6

  • SHA256

    3ef3d036ce3461514a05633df722905d738b93311b67ed3ed7b7707e654e7af3

  • SHA512

    e08c4dddb59b64be79fdc3a5fdd99b15cacbfce3a0a7ce6746d02cec6b5d7de5d8e6072d3e900a9a97a27698761b6f0589ecc11d21659f67aa8c0af7f62fa1fa

  • SSDEEP

    12288:r1ZF8KWULcTsua8wH1rOUbbNRma9060onGs3LBmFXh3TxkR:ryfULGs1dbn9VnGGLBmhG

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.

  • 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 3 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).

  • 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 11 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\3ef3d036ce3461514a05633df722905d738b93311b67ed3ed7b7707e654e7af3N.exe
    "C:\Users\Admin\AppData\Local\Temp\3ef3d036ce3461514a05633df722905d738b93311b67ed3ed7b7707e654e7af3N.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:4092
    • 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\3ef3d036ce3461514a05633df722905d738b93311b67ed3ed7b7707e654e7af3N.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3064
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\DOptASr.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1948
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\DOptASr" /XML "C:\Users\Admin\AppData\Local\Temp\tmp54A.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2856
    • C:\Users\Admin\AppData\Local\Temp\3ef3d036ce3461514a05633df722905d738b93311b67ed3ed7b7707e654e7af3N.exe
      "C:\Users\Admin\AppData\Local\Temp\3ef3d036ce3461514a05633df722905d738b93311b67ed3ed7b7707e654e7af3N.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:4000

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

    b3294888be1072ddf2aba06e364e7559

    SHA1

    af0abf8d2e925300064e937caf21eeb8265fbb50

    SHA256

    9b9f183e0be38ad73a40c349792c9ab3f8457b4f11febed832cae41e257cb48b

    SHA512

    52a7c408311a2d5d29c74f3be263f1f607d6a185f469d02bb031029c10672fc77ec069d7812c359d2c4898baac82c058f09b90ae27073b3c9181542270f91a35

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_52jpitov.5ha.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmp54A.tmp

    Filesize

    1KB

    MD5

    739623a8f4dfae749a94d87d6ce597ff

    SHA1

    7b345cff81d36448c4e2044addf4293e4ce8d319

    SHA256

    e0647b1a1c69b7a75a4983c3dd6944b37ed255162a86ef6085ec7c50e907777c

    SHA512

    29237cf5bfcc757c603abcb3ce1f8f1dee8e570cac0133666278c0c9cf9ac136832b0dc7df38b5ac6b6a8f139b1db86487497548490ee80fdc2c8fddaebe5baa

  • memory/1948-74-0x0000000007820000-0x0000000007E9A000-memory.dmp

    Filesize

    6.5MB

  • memory/1948-80-0x0000000007420000-0x0000000007434000-memory.dmp

    Filesize

    80KB

  • memory/1948-79-0x0000000007410000-0x000000000741E000-memory.dmp

    Filesize

    56KB

  • memory/1948-77-0x0000000007460000-0x00000000074F6000-memory.dmp

    Filesize

    600KB

  • memory/1948-82-0x0000000007500000-0x0000000007508000-memory.dmp

    Filesize

    32KB

  • memory/1948-62-0x00000000717D0000-0x000000007181C000-memory.dmp

    Filesize

    304KB

  • memory/1948-50-0x0000000005F70000-0x0000000005FBC000-memory.dmp

    Filesize

    304KB

  • memory/1948-49-0x0000000005EC0000-0x0000000005EDE000-memory.dmp

    Filesize

    120KB

  • memory/1948-38-0x0000000075150000-0x0000000075900000-memory.dmp

    Filesize

    7.7MB

  • memory/1948-88-0x0000000075150000-0x0000000075900000-memory.dmp

    Filesize

    7.7MB

  • memory/1948-24-0x0000000075150000-0x0000000075900000-memory.dmp

    Filesize

    7.7MB

  • memory/1948-19-0x0000000075150000-0x0000000075900000-memory.dmp

    Filesize

    7.7MB

  • memory/3064-16-0x0000000075150000-0x0000000075900000-memory.dmp

    Filesize

    7.7MB

  • memory/3064-81-0x00000000076C0000-0x00000000076DA000-memory.dmp

    Filesize

    104KB

  • memory/3064-23-0x00000000059F0000-0x0000000005A56000-memory.dmp

    Filesize

    408KB

  • memory/3064-22-0x0000000005330000-0x0000000005396000-memory.dmp

    Filesize

    408KB

  • memory/3064-18-0x0000000075150000-0x0000000075900000-memory.dmp

    Filesize

    7.7MB

  • memory/3064-89-0x0000000075150000-0x0000000075900000-memory.dmp

    Filesize

    7.7MB

  • memory/3064-26-0x0000000005A60000-0x0000000005DB4000-memory.dmp

    Filesize

    3.3MB

  • memory/3064-27-0x0000000075150000-0x0000000075900000-memory.dmp

    Filesize

    7.7MB

  • memory/3064-17-0x00000000053C0000-0x00000000059E8000-memory.dmp

    Filesize

    6.2MB

  • memory/3064-21-0x0000000005290000-0x00000000052B2000-memory.dmp

    Filesize

    136KB

  • memory/3064-78-0x0000000007580000-0x0000000007591000-memory.dmp

    Filesize

    68KB

  • memory/3064-15-0x0000000002730000-0x0000000002766000-memory.dmp

    Filesize

    216KB

  • memory/3064-76-0x00000000073F0000-0x00000000073FA000-memory.dmp

    Filesize

    40KB

  • memory/3064-75-0x0000000007380000-0x000000000739A000-memory.dmp

    Filesize

    104KB

  • memory/3064-52-0x00000000717D0000-0x000000007181C000-memory.dmp

    Filesize

    304KB

  • memory/3064-72-0x00000000071C0000-0x00000000071DE000-memory.dmp

    Filesize

    120KB

  • memory/3064-51-0x00000000071E0000-0x0000000007212000-memory.dmp

    Filesize

    200KB

  • memory/3064-73-0x0000000007230000-0x00000000072D3000-memory.dmp

    Filesize

    652KB

  • memory/4000-25-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/4000-91-0x00000000069E0000-0x0000000006BA2000-memory.dmp

    Filesize

    1.8MB

  • memory/4000-90-0x00000000067C0000-0x0000000006810000-memory.dmp

    Filesize

    320KB

  • memory/4092-5-0x0000000005000000-0x000000000500A000-memory.dmp

    Filesize

    40KB

  • memory/4092-0-0x000000007515E000-0x000000007515F000-memory.dmp

    Filesize

    4KB

  • memory/4092-6-0x0000000006650000-0x000000000666E000-memory.dmp

    Filesize

    120KB

  • memory/4092-9-0x0000000004AF0000-0x0000000004B58000-memory.dmp

    Filesize

    416KB

  • memory/4092-39-0x0000000075150000-0x0000000075900000-memory.dmp

    Filesize

    7.7MB

  • memory/4092-4-0x0000000075150000-0x0000000075900000-memory.dmp

    Filesize

    7.7MB

  • memory/4092-3-0x0000000005070000-0x0000000005102000-memory.dmp

    Filesize

    584KB

  • memory/4092-2-0x0000000005580000-0x0000000005B24000-memory.dmp

    Filesize

    5.6MB

  • memory/4092-7-0x000000007515E000-0x000000007515F000-memory.dmp

    Filesize

    4KB

  • memory/4092-1-0x0000000000550000-0x00000000005FA000-memory.dmp

    Filesize

    680KB

  • memory/4092-10-0x000000000AEE0000-0x000000000AF7C000-memory.dmp

    Filesize

    624KB

  • memory/4092-8-0x0000000075150000-0x0000000075900000-memory.dmp

    Filesize

    7.7MB