Analysis

  • max time kernel
    225s
  • max time network
    166s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    21-04-2021 16:01

General

  • Target

    DHL_docs600857460.exe

  • Size

    1.1MB

  • MD5

    dc6de93fc0e9afedd54a7848fcb2943e

  • SHA1

    b7508d365557c95c6ea8fbf32ffd4ce5f0a99642

  • SHA256

    ee6ada9de678d7139d3f081d1d467cfa50ee2f733af25b62ed16411818a847c1

  • SHA512

    972d7c8d681e5dd0ee1acc1a2d605c4f0b777854f7547f30e906a35e94e5e75c94c02ec53ebb008d054b5b93a365d7b0b5d2dbc231839197ddc14867843f1b12

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.ministryofcustomsandtrade.org
  • Port:
    587
  • Username:
    proton@ministryofcustomsandtrade.org
  • Password:
    eLsZecV2

Signatures

  • AgentTesla

    Agent Tesla is a remote access tool (RAT) written in visual basic.

  • AgentTesla Payload 2 IoCs
  • 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 behavior: EnumeratesProcesses 4 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\DHL_docs600857460.exe
    "C:\Users\Admin\AppData\Local\Temp\DHL_docs600857460.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1608
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ThqLFEpUYyPVk" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2BF0.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1668
    • C:\Users\Admin\AppData\Local\Temp\DHL_docs600857460.exe
      "C:\Users\Admin\AppData\Local\Temp\DHL_docs600857460.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:364
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
        dw20.exe -x -s 520
        3⤵
        • Suspicious behavior: GetForegroundWindowSpam
        PID:564

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\Temp\tmp2BF0.tmp
    MD5

    588af039f884b3e7f97d133b8788d8bd

    SHA1

    0d7ba1c39a88b4b1e3fbe111b7aceb8178c865dc

    SHA256

    cc082b164f1a52d717160f11c67f39c8aea98152cfb70b739bd10198a62789b2

    SHA512

    f76fd9739d8a32cf7dc6864a1cb237c3a810cf2e6af48fda693bfa15ae3103ab796dddde35c971e5784b6d9a0e180074dba1c02579ace10b709d89ec61c5134f

  • memory/364-65-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

  • memory/364-66-0x00000000004374BE-mapping.dmp
  • memory/364-68-0x0000000000E30000-0x0000000000E31000-memory.dmp
    Filesize

    4KB

  • memory/564-69-0x0000000000000000-mapping.dmp
  • memory/564-71-0x00000000004F0000-0x00000000004F1000-memory.dmp
    Filesize

    4KB

  • memory/1608-60-0x0000000075801000-0x0000000075803000-memory.dmp
    Filesize

    8KB

  • memory/1608-61-0x0000000000270000-0x0000000000271000-memory.dmp
    Filesize

    4KB

  • memory/1608-62-0x0000000000271000-0x0000000000272000-memory.dmp
    Filesize

    4KB

  • memory/1668-63-0x0000000000000000-mapping.dmp