Resubmissions

14/04/2025, 07:51

250414-jp1kfssjz9 10

14/04/2025, 07:46

250414-jl9nyssjt9 10

08/04/2025, 15:58

250408-tevasswl18 10

08/04/2025, 14:19

250408-rm2nqsvqw2 10

Analysis

  • max time kernel
    134s
  • max time network
    141s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250313-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250313-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08/04/2025, 14:19

General

  • Target

    f62837f3bc66012b94d74cc471f3d97a.exe

  • Size

    625KB

  • MD5

    f62837f3bc66012b94d74cc471f3d97a

  • SHA1

    9fa01c1c57bb1ec604771a796b4c36352552516f

  • SHA256

    6831200eb1173e4bf699042b7b2e63e3582490981a55b20671724bb60cb0faa9

  • SHA512

    de95cd3184e9f9d6931db60a6edd6e986eba3ae0c2e6308e65808aa6fbefd4d00f0d38a4305dc307d0217acdfe8fad165adf7a39d6f553eb53ff81abbb147b6a

  • SSDEEP

    12288:jQn+P/KKZA6B0Ndprctmm0+xFLnLsoc/8uHlHXob3:W+P/0UWdomC/LnLsoc0uHdX

Malware Config

Extracted

Family

snakekeylogger

C2

https://api.telegram.org/bot7810553983:AAF3uNmTjPchWZALCr5hfHzaUc2KfKr7BrQ/sendMessage?chat_id=8164035448

Signatures

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • Snake Keylogger payload 1 IoCs
  • Snakekeylogger family
  • 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 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).

  • 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 15 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\f62837f3bc66012b94d74cc471f3d97a.exe
    "C:\Users\Admin\AppData\Local\Temp\f62837f3bc66012b94d74cc471f3d97a.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:5420
    • 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\f62837f3bc66012b94d74cc471f3d97a.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:5008
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\RfmuHLHAcxv.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:5068
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\RfmuHLHAcxv" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD040.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:5560
    • C:\Users\Admin\AppData\Local\Temp\f62837f3bc66012b94d74cc471f3d97a.exe
      "C:\Users\Admin\AppData\Local\Temp\f62837f3bc66012b94d74cc471f3d97a.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:5692

Network

MITRE ATT&CK Enterprise v16

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

    78e60c036acdd0deeb26b9d824cb035c

    SHA1

    3f132d36d90aa83dc7aae6c206bcb43e0fffc4d4

    SHA256

    743f074bf6132b5529b045a1694900c991b5e52f95093a2bda6b7cb87593817f

    SHA512

    ccfa598396afea051e0e5b9934ef454bf81772a993cd7579d00635eec8083b4909ae8f5ee0181610b830daac2322b0cfc7babe36573b265d670429a9d1646c7b

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_3k1ej2cp.3ja.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmpD040.tmp

    Filesize

    1KB

    MD5

    ac475a689249dfedf82bf521a21d453c

    SHA1

    01c3d8fdabfb02ba92d0eec41d75309b8cd41c2b

    SHA256

    a5fedb2033a937c5d7e397bb7fa6b236b013bb02639c2f1087a00509ee13679a

    SHA512

    63d338c33f0f5bc826b9c4762c4207d842ed89eb0bf77f7fbba27ebd19678876fcbd5ba3aacb8de50074d196f109813817e34dc760011a2ca835767f5c632097

  • memory/5008-21-0x00000000054F0000-0x0000000005512000-memory.dmp

    Filesize

    136KB

  • memory/5008-48-0x0000000006390000-0x00000000063AE000-memory.dmp

    Filesize

    120KB

  • memory/5008-87-0x00000000745E0000-0x0000000074D90000-memory.dmp

    Filesize

    7.7MB

  • memory/5008-81-0x0000000007A00000-0x0000000007A08000-memory.dmp

    Filesize

    32KB

  • memory/5008-76-0x0000000007960000-0x00000000079F6000-memory.dmp

    Filesize

    600KB

  • memory/5008-73-0x0000000007D30000-0x00000000083AA000-memory.dmp

    Filesize

    6.5MB

  • memory/5008-74-0x00000000076E0000-0x00000000076FA000-memory.dmp

    Filesize

    104KB

  • memory/5008-15-0x0000000004E00000-0x0000000004E36000-memory.dmp

    Filesize

    216KB

  • memory/5008-17-0x00000000745E0000-0x0000000074D90000-memory.dmp

    Filesize

    7.7MB

  • memory/5008-16-0x00000000055C0000-0x0000000005BE8000-memory.dmp

    Filesize

    6.2MB

  • memory/5008-18-0x00000000745E0000-0x0000000074D90000-memory.dmp

    Filesize

    7.7MB

  • memory/5008-50-0x0000000007550000-0x0000000007582000-memory.dmp

    Filesize

    200KB

  • memory/5008-67-0x0000000007590000-0x00000000075AE000-memory.dmp

    Filesize

    120KB

  • memory/5008-29-0x0000000005D50000-0x0000000005DB6000-memory.dmp

    Filesize

    408KB

  • memory/5008-28-0x0000000005BF0000-0x0000000005C56000-memory.dmp

    Filesize

    408KB

  • memory/5008-35-0x0000000005EC0000-0x0000000006214000-memory.dmp

    Filesize

    3.3MB

  • memory/5008-51-0x0000000070D30000-0x0000000070D7C000-memory.dmp

    Filesize

    304KB

  • memory/5008-49-0x00000000068F0000-0x000000000693C000-memory.dmp

    Filesize

    304KB

  • memory/5068-75-0x0000000006D80000-0x0000000006D8A000-memory.dmp

    Filesize

    40KB

  • memory/5068-77-0x0000000006F10000-0x0000000006F21000-memory.dmp

    Filesize

    68KB

  • memory/5068-88-0x00000000745E0000-0x0000000074D90000-memory.dmp

    Filesize

    7.7MB

  • memory/5068-22-0x00000000745E0000-0x0000000074D90000-memory.dmp

    Filesize

    7.7MB

  • memory/5068-80-0x0000000007050000-0x000000000706A000-memory.dmp

    Filesize

    104KB

  • memory/5068-36-0x00000000745E0000-0x0000000074D90000-memory.dmp

    Filesize

    7.7MB

  • memory/5068-61-0x0000000070D30000-0x0000000070D7C000-memory.dmp

    Filesize

    304KB

  • memory/5068-79-0x0000000006F50000-0x0000000006F64000-memory.dmp

    Filesize

    80KB

  • memory/5068-78-0x0000000006F40000-0x0000000006F4E000-memory.dmp

    Filesize

    56KB

  • memory/5068-19-0x00000000745E0000-0x0000000074D90000-memory.dmp

    Filesize

    7.7MB

  • memory/5068-72-0x0000000006BB0000-0x0000000006C53000-memory.dmp

    Filesize

    652KB

  • memory/5420-7-0x00000000745EE000-0x00000000745EF000-memory.dmp

    Filesize

    4KB

  • memory/5420-38-0x00000000745E0000-0x0000000074D90000-memory.dmp

    Filesize

    7.7MB

  • memory/5420-0-0x00000000745EE000-0x00000000745EF000-memory.dmp

    Filesize

    4KB

  • memory/5420-8-0x00000000745E0000-0x0000000074D90000-memory.dmp

    Filesize

    7.7MB

  • memory/5420-10-0x0000000006B80000-0x0000000006C1C000-memory.dmp

    Filesize

    624KB

  • memory/5420-4-0x0000000005720000-0x000000000572A000-memory.dmp

    Filesize

    40KB

  • memory/5420-1-0x0000000000C90000-0x0000000000D32000-memory.dmp

    Filesize

    648KB

  • memory/5420-9-0x0000000006A00000-0x0000000006A6A000-memory.dmp

    Filesize

    424KB

  • memory/5420-5-0x00000000745E0000-0x0000000074D90000-memory.dmp

    Filesize

    7.7MB

  • memory/5420-3-0x0000000005790000-0x0000000005822000-memory.dmp

    Filesize

    584KB

  • memory/5420-6-0x00000000080E0000-0x00000000080F0000-memory.dmp

    Filesize

    64KB

  • memory/5420-2-0x0000000005D40000-0x00000000062E4000-memory.dmp

    Filesize

    5.6MB

  • memory/5692-34-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/5692-89-0x00000000067C0000-0x0000000006810000-memory.dmp

    Filesize

    320KB

  • memory/5692-90-0x00000000069E0000-0x0000000006BA2000-memory.dmp

    Filesize

    1.8MB