Analysis

  • max time kernel
    154s
  • max time network
    164s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    23-05-2022 20:47

General

  • Target

    899add4d120b60a2dad900062baabfc70d6cbb616d9f4a784e850197f580fa84.exe

  • Size

    385KB

  • MD5

    2a51a997488380da1de20ea4d0050be9

  • SHA1

    27e0c00423195325b5f38cc7060bc4060b520969

  • SHA256

    899add4d120b60a2dad900062baabfc70d6cbb616d9f4a784e850197f580fa84

  • SHA512

    64cbb33704c4be470be12087a1bd76d4fa32d1b5814afa6afa1429ab574ed2cae7bcf5743cad1668be584271281028b81ca2a1f408555bf2ce5977a8d82d2086

Score
10/10

Malware Config

Extracted

Family

asyncrat

Version

0.5.6B

Botnet

5

C2

moveforme.ug:6970

xafsavxcfdgbdsfg.ru:6970

Mutex

tralala

Attributes
  • delay

    0

  • install

    false

  • install_file

    dllhost.exe

  • install_folder

    %AppData%

aes.plain

Signatures

  • AsyncRat

    AsyncRAT is designed to remotely monitor and control other computers.

  • suricata: ET MALWARE Possible Zeus GameOver/FluBot Related DGA NXDOMAIN Responses

    suricata: ET MALWARE Possible Zeus GameOver/FluBot Related DGA NXDOMAIN Responses

  • Async RAT payload 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\899add4d120b60a2dad900062baabfc70d6cbb616d9f4a784e850197f580fa84.exe
    "C:\Users\Admin\AppData\Local\Temp\899add4d120b60a2dad900062baabfc70d6cbb616d9f4a784e850197f580fa84.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3304
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ptphWBVV" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA3A7.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:4416
    • C:\Users\Admin\AppData\Local\Temp\899add4d120b60a2dad900062baabfc70d6cbb616d9f4a784e850197f580fa84.exe
      "{path}"
      2⤵
        PID:4076

    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

    Query Registry

    1
    T1012

    System Information Discovery

    2
    T1082

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\899add4d120b60a2dad900062baabfc70d6cbb616d9f4a784e850197f580fa84.exe.log
      Filesize

      1KB

      MD5

      8ec831f3e3a3f77e4a7b9cd32b48384c

      SHA1

      d83f09fd87c5bd86e045873c231c14836e76a05c

      SHA256

      7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

      SHA512

      26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

    • C:\Users\Admin\AppData\Local\Temp\tmpA3A7.tmp
      Filesize

      1KB

      MD5

      7dee6a2bf6c714bfd1853bf49720d01e

      SHA1

      1a9d98de21f3fa0517b2aeffa462371f2cd223b4

      SHA256

      1946cd357e6124fafc8b4a7240e5e74569eed6f2da7f6279817892be07f7cc2c

      SHA512

      56f190473d456382c0c13ed8eb49ceb98703660c7aebb8e301531ad2babf9bd427f3ee01217e3d7b1119e70a8a30938cc3f77eff666816fd63c18cf3784c6169

    • memory/3304-130-0x0000000000D60000-0x0000000000DC6000-memory.dmp
      Filesize

      408KB

    • memory/3304-131-0x000000000A180000-0x000000000A724000-memory.dmp
      Filesize

      5.6MB

    • memory/3304-132-0x00000000058F0000-0x0000000005982000-memory.dmp
      Filesize

      584KB

    • memory/3304-133-0x0000000005850000-0x000000000585A000-memory.dmp
      Filesize

      40KB

    • memory/3304-134-0x0000000009F70000-0x000000000A00C000-memory.dmp
      Filesize

      624KB

    • memory/4076-138-0x0000000000400000-0x0000000000412000-memory.dmp
      Filesize

      72KB

    • memory/4076-137-0x0000000000000000-mapping.dmp
    • memory/4416-135-0x0000000000000000-mapping.dmp