Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-05-2024 00:39

General

  • Target

    2024-05-25_5ee7f503c5b250aba4c315710322e4f1_cobalt-strike_cobaltstrike.exe

  • Size

    7.4MB

  • MD5

    5ee7f503c5b250aba4c315710322e4f1

  • SHA1

    716ce67daac4c11012796704c8a17cc4be3cc4a5

  • SHA256

    73e593913f099a8836c5d9d158b43e983c2c8547fe8be803860757091498ea80

  • SHA512

    e4ea84ff207e0eca515d5825bbe9354510618e562e20032b8ade419ec3220beb2f56b850e2aeec11a7c5e573bf1547d475c9711105a4bad401e508ad6a90eb45

  • SSDEEP

    98304:bGUjSb/X0Z3y/t2uDN8nsk/39999999999eEN3JjAUtw6MT4nR8CZqXebhnp3aJN:bGUGb/X0Zi/t2uDN8qurYmd08uDH

Malware Config

Signatures

  • Cobalt Strike reflective loader 1 IoCs

    Detects the reflective loader used by Cobalt Strike.

  • Cobaltstrike

    Detected malicious payload which is part of Cobaltstrike.

  • xmrig

    XMRig is a high performance, open source, cross platform CPU/GPU miner.

  • Detects Reflective DLL injection artifacts 1 IoCs
  • Detects executables containing URLs to raw contents of a Github gist 15 IoCs
  • XMRig Miner payload 15 IoCs
  • Drops desktop.ini file(s) 1 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 4 IoCs
  • Drops autorun.inf file 1 TTPs 3 IoCs

    Malware can abuse Windows Autorun to spread further via attached volumes.

  • Drops file in Program Files directory 49 IoCs
  • Modifies Internet Explorer start page 1 TTPs 11 IoCs
  • Modifies system certificate store 2 TTPs 14 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-05-25_5ee7f503c5b250aba4c315710322e4f1_cobalt-strike_cobaltstrike.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-05-25_5ee7f503c5b250aba4c315710322e4f1_cobalt-strike_cobaltstrike.exe"
    1⤵
    • Drops desktop.ini file(s)
    • Drops autorun.inf file
    • Drops file in Program Files directory
    • Modifies Internet Explorer start page
    • Modifies system certificate store
    • Suspicious use of AdjustPrivilegeToken
    PID:4824

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Replication Through Removable Media

1
T1091

Defense Evasion

Modify Registry

2
T1112

Subvert Trust Controls

1
T1553

Install Root Certificate

1
T1553.004

Lateral Movement

Replication Through Removable Media

1
T1091

Command and Control

Web Service

1
T1102

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Program Files\7-Zip\7-zip.dll.exe
    Filesize

    7.5MB

    MD5

    2e8df72b7dd436e3aa5317e2cd855f2f

    SHA1

    f2ac11b9ab559003c9e550b1239475d49102a6af

    SHA256

    47c40a0d06385f31d52b096adfa40ccb8046f3f1f64af38ae0e6b51b8671c104

    SHA512

    49f7999800e3095d4411c27df2ca491d56f8941632cd2de112312f9d82d019a7a5a571f02f8556c99c0ebdd9f6a77e4facb88c81f3f61522a143bcf2a37ec151

  • memory/4824-97-0x0000000000400000-0x0000000000DBD000-memory.dmp
    Filesize

    9.7MB

  • memory/4824-98-0x0000000000400000-0x0000000000DBD000-memory.dmp
    Filesize

    9.7MB

  • memory/4824-84-0x0000000000400000-0x0000000000DBD000-memory.dmp
    Filesize

    9.7MB

  • memory/4824-89-0x0000000000400000-0x0000000000DBD000-memory.dmp
    Filesize

    9.7MB

  • memory/4824-90-0x0000000000400000-0x0000000000DBD000-memory.dmp
    Filesize

    9.7MB

  • memory/4824-93-0x0000000000400000-0x0000000000DBD000-memory.dmp
    Filesize

    9.7MB

  • memory/4824-81-0x0000000000400000-0x0000000000DBD000-memory.dmp
    Filesize

    9.7MB

  • memory/4824-0-0x00000000001E0000-0x00000000001F0000-memory.dmp
    Filesize

    64KB

  • memory/4824-94-0x0000000000400000-0x0000000000DBD000-memory.dmp
    Filesize

    9.7MB

  • memory/4824-99-0x0000000000400000-0x0000000000DBD000-memory.dmp
    Filesize

    9.7MB

  • memory/4824-102-0x0000000000400000-0x0000000000DBD000-memory.dmp
    Filesize

    9.7MB

  • memory/4824-105-0x0000000000400000-0x0000000000DBD000-memory.dmp
    Filesize

    9.7MB

  • memory/4824-106-0x0000000000400000-0x0000000000DBD000-memory.dmp
    Filesize

    9.7MB

  • memory/4824-107-0x0000000000400000-0x0000000000DBD000-memory.dmp
    Filesize

    9.7MB

  • memory/4824-114-0x0000000000400000-0x0000000000DBD000-memory.dmp
    Filesize

    9.7MB