Analysis

  • max time kernel
    56s
  • max time network
    135s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    23-06-2021 14:32

General

  • Target

    2021 Repeat Order.PDF File.exe

  • Size

    1.0MB

  • MD5

    2cae2254b4ab9773f185fb638a9c31a4

  • SHA1

    912bba120433bdff00cf34007ca11b23e511d561

  • SHA256

    0a37b966b67a5ae6f09f284f453bf83944916dec7f8676be4a712cc92a3fc186

  • SHA512

    32377ef9c2f5699a8bd40e08c4001d1bb3edf0faaf7ad71f9d0fe67cfc01289f729b79f0b5120a676debc12850480efe368ab3d4ca5a9c24b83a430f4f8030c8

Malware Config

Extracted

Family

snakekeylogger

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.ru
  • Port:
    587
  • Username:
    saintmoni@yandex.ru
  • Password:
    babaanu12345

Signatures

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • 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). Likely ransomware behaviour.

  • Program crash 1 IoCs
  • 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 15 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2021 Repeat Order.PDF File.exe
    "C:\Users\Admin\AppData\Local\Temp\2021 Repeat Order.PDF File.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:808
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\lpdrbXVhXwsgB" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3E23.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1308
    • C:\Users\Admin\AppData\Local\Temp\2021 Repeat Order.PDF File.exe
      "{path}"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1416
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1416 -s 1428
        3⤵
        • Program crash
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2144

Network

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Discovery

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\2021 Repeat Order.PDF File.exe.log
    MD5

    c3cc52ccca9ff2b6fa8d267fc350ca6b

    SHA1

    a68d4028333296d222e4afd75dea36fdc98d05f3

    SHA256

    3125b6071e2d78f575a06ed7ac32a83d9262ae64d1fa81ac43e8bfc1ef157c0e

    SHA512

    b0c7b2501b1a2c559795a9d178c0bbda0e03cbdbaaa2c4330ac1202a55373fe1b742078adcfa915bd6e805565a2daa6d35d64ef7a14ffcd09069f9ea6a691cc7

  • C:\Users\Admin\AppData\Local\Temp\tmp3E23.tmp
    MD5

    e9403505935e0b58849e6b1a4ef8a4a5

    SHA1

    0b093b45173da92b197d5e9fdf1c23e310dacad1

    SHA256

    6e126022290fa0bc67ef17a04372dce3245c8dc05cf5768603f2a4eafd802ca5

    SHA512

    eee8b394c8f275f20d1f138fce2f2d9d5967f609911c14623892d242604b555d2c6127978f9e69c851d4251904c7189d4f9f427dbc8b0e23497f68e8c6c6b2e3

  • memory/808-121-0x00000000055B0000-0x00000000055B2000-memory.dmp
    Filesize

    8KB

  • memory/808-118-0x00000000051D0000-0x00000000051D1000-memory.dmp
    Filesize

    4KB

  • memory/808-119-0x0000000004FD0000-0x0000000004FD1000-memory.dmp
    Filesize

    4KB

  • memory/808-120-0x00000000050E0000-0x00000000055DE000-memory.dmp
    Filesize

    5.0MB

  • memory/808-114-0x0000000000680000-0x0000000000681000-memory.dmp
    Filesize

    4KB

  • memory/808-122-0x0000000006D20000-0x0000000006DCE000-memory.dmp
    Filesize

    696KB

  • memory/808-123-0x000000000B2B0000-0x000000000B312000-memory.dmp
    Filesize

    392KB

  • memory/808-117-0x0000000004FE0000-0x0000000004FE1000-memory.dmp
    Filesize

    4KB

  • memory/808-116-0x00000000055E0000-0x00000000055E1000-memory.dmp
    Filesize

    4KB

  • memory/1308-124-0x0000000000000000-mapping.dmp
  • memory/1416-126-0x0000000000400000-0x0000000000448000-memory.dmp
    Filesize

    288KB

  • memory/1416-127-0x000000000044320E-mapping.dmp
  • memory/1416-133-0x00000000054E0000-0x00000000054E1000-memory.dmp
    Filesize

    4KB