Analysis

  • max time kernel
    64s
  • max time network
    137s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    21-07-2021 14:40

General

  • Target

    STSGN5512604-pdf.exe

  • Size

    1.1MB

  • MD5

    2eccc78b0dec8abf7d68f05b68d3a32d

  • SHA1

    b8e622ea878201d9567696a18cd8b189f688c178

  • SHA256

    2abb4cd91f5fd1f88d13d666dce9fb2c88e5d650669472059f99cac4d012c3be

  • SHA512

    54389e6a2850911973d3e3ce3d7ed1cf89648a71815bd9212dc07b24548598b1c6db1451bd665427d777e8c99c34550dad67685420c352ef46db816093d25b20

Malware Config

Extracted

Family

snakekeylogger

Credentials

  • Protocol:
    smtp
  • Host:
    us2.smtp.mailhostbox.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Chukwudim28@

Signatures

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • Snake Keylogger Payload 2 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • 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.

  • 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
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\STSGN5512604-pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\STSGN5512604-pdf.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:632
    • C:\Users\Admin\AppData\Local\Temp\STSGN5512604-pdf.exe
      "C:\Users\Admin\AppData\Local\Temp\STSGN5512604-pdf.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1944

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\STSGN5512604-pdf.exe.log

    MD5

    90acfd72f14a512712b1a7380c0faf60

    SHA1

    40ba4accb8faa75887e84fb8e38d598dc8cf0f12

    SHA256

    20806822f0c130b340504132c1461b589261fbbc518e468f4f90733ab514cb86

    SHA512

    29dbf85e14e60868574cb4dc9bda83d3c229fb956733d8d2557f2475ee0e690ac9c2e72f31e02284996da6906ba2dbfa382a29b04c15a2406571d8ee19ad16b9

  • memory/632-121-0x0000000005650000-0x0000000005651000-memory.dmp

    Filesize

    4KB

  • memory/632-123-0x00000000014C0000-0x0000000001540000-memory.dmp

    Filesize

    512KB

  • memory/632-118-0x00000000054F0000-0x00000000054F1000-memory.dmp

    Filesize

    4KB

  • memory/632-119-0x0000000005450000-0x000000000594E000-memory.dmp

    Filesize

    5.0MB

  • memory/632-120-0x0000000002EF0000-0x0000000002EF1000-memory.dmp

    Filesize

    4KB

  • memory/632-114-0x0000000000920000-0x0000000000921000-memory.dmp

    Filesize

    4KB

  • memory/632-122-0x0000000006F70000-0x0000000006F8B000-memory.dmp

    Filesize

    108KB

  • memory/632-117-0x0000000005950000-0x0000000005951000-memory.dmp

    Filesize

    4KB

  • memory/632-124-0x0000000001540000-0x00000000015AA000-memory.dmp

    Filesize

    424KB

  • memory/632-116-0x0000000002E40000-0x0000000002E41000-memory.dmp

    Filesize

    4KB

  • memory/1944-126-0x00000000004647AE-mapping.dmp

  • memory/1944-125-0x0000000000400000-0x000000000046A000-memory.dmp

    Filesize

    424KB

  • memory/1944-132-0x00000000056E0000-0x00000000056E1000-memory.dmp

    Filesize

    4KB

  • memory/1944-133-0x0000000006AC0000-0x0000000006AC1000-memory.dmp

    Filesize

    4KB