Analysis

  • max time kernel
    167s
  • max time network
    184s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    21-05-2022 12:26

General

  • Target

    ORDER _# 6WHQ492788G.exe

  • Size

    841KB

  • MD5

    abc4f95a5cda04a4c1e3c0a1e0a7eb92

  • SHA1

    885bc02ac8295c7cb601df9520f63d0c35b11af5

  • SHA256

    7204eac3f08e94c2330bb47f7caf2464c9b04863bd4f52b67d4e166171165b90

  • SHA512

    1dd983c5b0b183a3526288ccc57837739ff96268117805737796a83c03953129474e1170b31f0e0fe661e483f8e6d86231fee4e1a58cc992de37a28e6f711518

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.privateemail.com
  • Port:
    587
  • Username:
    ceo@sktech.club
  • Password:
    1234567890Bless#

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.privateemail.com
  • Port:
    587
  • Username:
    ceo@sktech.club
  • Password:
    1234567890Bless#

Signatures

  • AgentTesla

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

  • AgentTesla Payload 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • 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.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 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 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ORDER _# 6WHQ492788G.exe
    "C:\Users\Admin\AppData\Local\Temp\ORDER _# 6WHQ492788G.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4484
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\QAFjvvyrFrV" /XML "C:\Users\Admin\AppData\Local\Temp\tmp6939.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:4956
    • C:\Users\Admin\AppData\Local\Temp\ORDER _# 6WHQ492788G.exe
      "{path}"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • outlook_office_path
      • outlook_win_path
      PID:4652

Network

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

3
T1005

Email Collection

1
T1114

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\ORDER _# 6WHQ492788G.exe.log
    Filesize

    593B

    MD5

    d33889e23b968ff408f471cc47c2293e

    SHA1

    2baefe703c8ee5d1ef4b0325020d581c7b18c54e

    SHA256

    bf6ef9732167acdc5f0721d7fc05c0d39be3359eda8bebf08f4145bbca8a22fb

    SHA512

    a461ef45b64c8c28a170f45ab53f136e43820e745d270c595137e236efbf316561206685b2b2925530c478210f88f4e435a470eabcc6ac25fcce30a889070208

  • C:\Users\Admin\AppData\Local\Temp\tmp6939.tmp
    Filesize

    1KB

    MD5

    7a87a7c7ca3f4e75bad9f3bc903e5c31

    SHA1

    b20154422391d68f7c65999d5a846bed923dc629

    SHA256

    8451e11538793430d122ecb459921e811fb1732f1f8b1913660718ba6625cb87

    SHA512

    33f6ee4ea130528340911ad139cffd393b4984d8abca4c51e34fb799c5d14dd10fa2e401d54e0c1055310a19bbd5e25a82fb1a0e8a0eef33e8d2f19facc2818a

  • memory/4484-130-0x0000000000D00000-0x0000000000DD8000-memory.dmp
    Filesize

    864KB

  • memory/4484-131-0x00000000081B0000-0x0000000008754000-memory.dmp
    Filesize

    5.6MB

  • memory/4484-132-0x0000000007CE0000-0x0000000007D72000-memory.dmp
    Filesize

    584KB

  • memory/4484-133-0x0000000008D10000-0x0000000008DAC000-memory.dmp
    Filesize

    624KB

  • memory/4652-136-0x0000000000000000-mapping.dmp
  • memory/4652-137-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

  • memory/4652-139-0x0000000006620000-0x0000000006686000-memory.dmp
    Filesize

    408KB

  • memory/4652-140-0x0000000006BA0000-0x0000000006BF0000-memory.dmp
    Filesize

    320KB

  • memory/4652-141-0x0000000001680000-0x000000000168A000-memory.dmp
    Filesize

    40KB

  • memory/4956-134-0x0000000000000000-mapping.dmp