Analysis

  • max time kernel
    152s
  • max time network
    159s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05/05/2023, 20:58

General

  • Target

    ShippingDocuments.pdf.exe

  • Size

    623KB

  • MD5

    c484332886c809a3452f19103ce0cfc7

  • SHA1

    42e0ea78388c594e6abab63c37464f71ed234f58

  • SHA256

    21777e7d8c275e5e9fc22a08172bfd5b9872340f46523df83bf2dd7a4b611dd2

  • SHA512

    c48a3bcb80d8dc51c327f5d952df4a73aaa1ca95720c039efe4caabfcb8f0d2bcb53456071fa0aecd87a6f279281ec5b1ed316f537078e4fbff9f502fe236372

  • SSDEEP

    12288:NOdlpV5YHhorPTfFZyN8TyjbduPk8RwctUO8D9ko:NKAKfysdk46Bk

Malware Config

Extracted

Family

snakekeylogger

C2

https://api.telegram.org/bot6029559841:AAEqr8_NCfqapJgAzw8PoPbqoCosnsk1VO0/sendMessage?chat_id=6033043077

Signatures

  • Detects Redline Stealer samples 2 IoCs

    This rule detects the presence of Redline Stealer samples based on their unique strings.

  • RedLine

    RedLine Stealer is a malware family written in C#, first appearing in early 2020.

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • Snake Keylogger payload 1 IoCs
  • StormKitty

    StormKitty is an open source info stealer written in C#.

  • StormKitty payload 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • 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 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ShippingDocuments.pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\ShippingDocuments.pdf.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4336
    • 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\ShippingDocuments.pdf.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:568
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\tjyThmp.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4284
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\tjyThmp" /XML "C:\Users\Admin\AppData\Local\Temp\tmp664B.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:232
    • C:\Users\Admin\AppData\Local\Temp\ShippingDocuments.pdf.exe
      "C:\Users\Admin\AppData\Local\Temp\ShippingDocuments.pdf.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:432

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

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

          Filesize

          1KB

          MD5

          33d62ef2c354f839a8b2b987e6ee41e7

          SHA1

          d76f64ac411a61f3f232f7f9f7b179bd34042226

          SHA256

          f6a84062cb11ccf802324692c2c4c48543377cf717d98efd5de695ed6d0a97d9

          SHA512

          d68a426b2f4646bb45e2267d60680166a8effb9a461e5a07756ba13a3bdf36b27e6e9777d945d03a62362e6976e92214c53ffc7c4f03ec28d3fcfc9a442c5e3c

        • 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

          24f019d2ef7840559841d3caa90cf881

          SHA1

          25b94cf0cc29f891aeb501a2e57c472ce4566816

          SHA256

          2e1ce4970ab1703229f9f59fb79d5b3374133766223fbe8ddf738252a3a96284

          SHA512

          9de888963ceef4c5672fc3b86bab69e1728a41c04d72dc4d2293ea7364193e4ba497183fd02eff10707679554667e23adfad1b250747e719d413a241f21a0190

        • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_4bzrpftf.rh2.ps1

          Filesize

          60B

          MD5

          d17fe0a3f47be24a6453e9ef58c94641

          SHA1

          6ab83620379fc69f80c0242105ddffd7d98d5d9d

          SHA256

          96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

          SHA512

          5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

        • C:\Users\Admin\AppData\Local\Temp\tmp664B.tmp

          Filesize

          1KB

          MD5

          3d42e68b1022069c7c3f55a5e2c1abf8

          SHA1

          e42b4e5ba01b92ef74a016677ac5516e43ef300c

          SHA256

          e2caacc4db51e3b693a0434b058e2fc6ced0ec843dacc144a2adab2f503d69a9

          SHA512

          81b008dc6b9bb7f350eac70ded553469cd44a08f640512171a78e9dd28dea74a3e6f4ba593f828963324495b35ea358327aad57dd1a2cb8d4a8dfabe2a3382cd

        • memory/432-214-0x00000000051E0000-0x00000000051F0000-memory.dmp

          Filesize

          64KB

        • memory/432-175-0x00000000051E0000-0x00000000051F0000-memory.dmp

          Filesize

          64KB

        • memory/432-163-0x0000000000400000-0x0000000000426000-memory.dmp

          Filesize

          152KB

        • memory/568-146-0x0000000005140000-0x0000000005768000-memory.dmp

          Filesize

          6.2MB

        • memory/568-202-0x0000000007960000-0x0000000007FDA000-memory.dmp

          Filesize

          6.5MB

        • memory/568-147-0x00000000050D0000-0x00000000050F2000-memory.dmp

          Filesize

          136KB

        • memory/568-208-0x00000000075E0000-0x00000000075E8000-memory.dmp

          Filesize

          32KB

        • memory/568-149-0x0000000004B00000-0x0000000004B10000-memory.dmp

          Filesize

          64KB

        • memory/568-150-0x0000000004B00000-0x0000000004B10000-memory.dmp

          Filesize

          64KB

        • memory/568-206-0x00000000074F0000-0x00000000074FE000-memory.dmp

          Filesize

          56KB

        • memory/568-204-0x0000000007330000-0x000000000733A000-memory.dmp

          Filesize

          40KB

        • memory/568-144-0x00000000025A0000-0x00000000025D6000-memory.dmp

          Filesize

          216KB

        • memory/568-201-0x0000000006570000-0x000000000658E000-memory.dmp

          Filesize

          120KB

        • memory/568-199-0x000000007F150000-0x000000007F160000-memory.dmp

          Filesize

          64KB

        • memory/568-198-0x0000000004B00000-0x0000000004B10000-memory.dmp

          Filesize

          64KB

        • memory/568-177-0x00000000717E0000-0x000000007182C000-memory.dmp

          Filesize

          304KB

        • memory/4284-151-0x00000000029F0000-0x0000000002A00000-memory.dmp

          Filesize

          64KB

        • memory/4284-152-0x0000000005C90000-0x0000000005CF6000-memory.dmp

          Filesize

          408KB

        • memory/4284-179-0x00000000717E0000-0x000000007182C000-memory.dmp

          Filesize

          304KB

        • memory/4284-174-0x0000000006490000-0x00000000064AE000-memory.dmp

          Filesize

          120KB

        • memory/4284-148-0x0000000005C20000-0x0000000005C86000-memory.dmp

          Filesize

          408KB

        • memory/4284-178-0x00000000029F0000-0x0000000002A00000-memory.dmp

          Filesize

          64KB

        • memory/4284-200-0x000000007FB90000-0x000000007FBA0000-memory.dmp

          Filesize

          64KB

        • memory/4284-207-0x0000000007A60000-0x0000000007A7A000-memory.dmp

          Filesize

          104KB

        • memory/4284-176-0x00000000069F0000-0x0000000006A22000-memory.dmp

          Filesize

          200KB

        • memory/4284-203-0x0000000007730000-0x000000000774A000-memory.dmp

          Filesize

          104KB

        • memory/4284-205-0x00000000079A0000-0x0000000007A36000-memory.dmp

          Filesize

          600KB

        • memory/4336-133-0x00000000007A0000-0x0000000000842000-memory.dmp

          Filesize

          648KB

        • memory/4336-137-0x0000000005410000-0x0000000005420000-memory.dmp

          Filesize

          64KB

        • memory/4336-139-0x00000000081B0000-0x000000000824C000-memory.dmp

          Filesize

          624KB

        • memory/4336-138-0x0000000005410000-0x0000000005420000-memory.dmp

          Filesize

          64KB

        • memory/4336-136-0x0000000005380000-0x000000000538A000-memory.dmp

          Filesize

          40KB

        • memory/4336-135-0x0000000005280000-0x0000000005312000-memory.dmp

          Filesize

          584KB

        • memory/4336-134-0x0000000005830000-0x0000000005DD4000-memory.dmp

          Filesize

          5.6MB