Analysis

  • max time kernel
    143s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19/07/2023, 12:47

General

  • Target

    FRA-XwcKdMDcpcV1Rjr.exe

  • Size

    590KB

  • MD5

    b991a513b8bd33bce6014a6907461eae

  • SHA1

    f72d34ea76d3ca8aee95419a46d862d137ccae14

  • SHA256

    4b899a1465e8a93502b8eff43fcc1c925fedd246148b02bf50d7f177ab7c2d52

  • SHA512

    c195e667db8c3c3e4efd4588750e7d942efe6f05aa9d05c54d9c62d7379e8ef0232c5b4fd7efcc15d30bbaff0cc49d91d2385c940486a2e49dbf124ab4506258

  • SSDEEP

    12288:f5PYPfY7apHdIi5iDTe4Nsb/qyDbOYPg1gUlhtB0OJzRkhkzLRcka:BPYPgGpnQDTPGzDbrYvIOJzG

Malware Config

Extracted

Family

snakekeylogger

Credentials

Signatures

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • Snake Keylogger payload 3 IoCs
  • 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
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\FRA-XwcKdMDcpcV1Rjr.exe
    "C:\Users\Admin\AppData\Local\Temp\FRA-XwcKdMDcpcV1Rjr.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:5080
    • C:\Users\Admin\AppData\Local\Temp\FRA-XwcKdMDcpcV1Rjr.exe
      "C:\Users\Admin\AppData\Local\Temp\FRA-XwcKdMDcpcV1Rjr.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: RenamesItself
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:5056

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\FRA-XwcKdMDcpcV1Rjr.exe.log

          Filesize

          1KB

          MD5

          8ec831f3e3a3f77e4a7b9cd32b48384c

          SHA1

          d83f09fd87c5bd86e045873c231c14836e76a05c

          SHA256

          7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

          SHA512

          26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

        • memory/5056-142-0x0000000000400000-0x0000000000426000-memory.dmp

          Filesize

          152KB

        • memory/5056-150-0x0000000005400000-0x0000000005410000-memory.dmp

          Filesize

          64KB

        • memory/5056-149-0x0000000074520000-0x0000000074CD0000-memory.dmp

          Filesize

          7.7MB

        • memory/5056-148-0x00000000065D0000-0x0000000006792000-memory.dmp

          Filesize

          1.8MB

        • memory/5056-147-0x0000000005400000-0x0000000005410000-memory.dmp

          Filesize

          64KB

        • memory/5056-145-0x0000000074520000-0x0000000074CD0000-memory.dmp

          Filesize

          7.7MB

        • memory/5080-141-0x000000000A820000-0x000000000A8BC000-memory.dmp

          Filesize

          624KB

        • memory/5080-133-0x00000000007F0000-0x000000000088A000-memory.dmp

          Filesize

          616KB

        • memory/5080-140-0x00000000053B0000-0x00000000053C0000-memory.dmp

          Filesize

          64KB

        • memory/5080-139-0x0000000074520000-0x0000000074CD0000-memory.dmp

          Filesize

          7.7MB

        • memory/5080-138-0x00000000052E0000-0x00000000052EA000-memory.dmp

          Filesize

          40KB

        • memory/5080-146-0x0000000074520000-0x0000000074CD0000-memory.dmp

          Filesize

          7.7MB

        • memory/5080-137-0x00000000053B0000-0x00000000053C0000-memory.dmp

          Filesize

          64KB

        • memory/5080-136-0x0000000005220000-0x00000000052B2000-memory.dmp

          Filesize

          584KB

        • memory/5080-135-0x00000000058C0000-0x0000000005E64000-memory.dmp

          Filesize

          5.6MB

        • memory/5080-134-0x0000000074520000-0x0000000074CD0000-memory.dmp

          Filesize

          7.7MB