Analysis

  • max time kernel
    149s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231222-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-12-2023 09:03

General

  • Target

    62118c1a7904986fcdf7f6528bf40d2f.exe

  • Size

    577KB

  • MD5

    62118c1a7904986fcdf7f6528bf40d2f

  • SHA1

    24cf6a814ba02a73342d6b6633e3e0a25acf06bd

  • SHA256

    1843c1b7e4384901bd8725daf296a716247c8636556b22af619b8485d9e27c57

  • SHA512

    e79d15512cba63ee64fa38385db3b1cf5276c747386581d5c270ed26f3738ac280a66284026d265cea1dc0ab808d6e0c6b4981a4699531db83869b41ff8d3458

  • SSDEEP

    12288:dtHA0+aLqijURNVD2HCiXhBJPcmlrzoo:dtHAQLqO6VyHXJ7n

Malware Config

Extracted

Family

cobaltstrike

Botnet

426352781

C2

http://help.getdsoft.com:443/jquery-3.3.1.min.js

Attributes
  • access_type

    512

  • beacon_type

    2048

  • host

    help.getdsoft.com,/jquery-3.3.1.min.js

  • http_header1

    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

  • http_header2

    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

  • http_method1

    GET

  • http_method2

    POST

  • jitter

    9472

  • polling_time

    5000

  • port_number

    443

  • sc_process32

    %windir%\syswow64\dllhost.exe

  • sc_process64

    %windir%\sysnative\dllhost.exe

  • state_machine

    MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQChAk64789sxB/KsBQCbj8Z601BTLYZNkcE3xxzDKnUjKVZHQKRf4WvmVqMGBkHx3HlmnqKK4fKqi05rld3fplUN5NcH3/ISzPy+Yd5USDPYhGCN4NlGv1ckugyLzRfH1/s4m9y42lcQK1JJ3K0ySHI24KdmU+Hv+jE9SOM7XI05QIDAQABAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==

  • unknown1

    4.234810624e+09

  • unknown2

    AAAABAAAAAEAAAXyAAAAAgAAAFQAAAACAAAPWwAAAA0AAAAPAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==

  • uri

    /jquery-3.3.2.min.js

  • user_agent

    Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko)

  • watermark

    426352781

Signatures

  • Cobaltstrike

    Detected malicious payload which is part of Cobaltstrike.

  • Executes dropped EXE 1 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\62118c1a7904986fcdf7f6528bf40d2f.exe
    "C:\Users\Admin\AppData\Local\Temp\62118c1a7904986fcdf7f6528bf40d2f.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2572
    • C:\Users\Public\Music\systemcheck.exe
      C:\Users\Public\Music\systemcheck.exe
      2⤵
      • Executes dropped EXE
      PID:4272

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • C:\Users\Public\Music\systemcheck.exe
    Filesize

    577KB

    MD5

    62118c1a7904986fcdf7f6528bf40d2f

    SHA1

    24cf6a814ba02a73342d6b6633e3e0a25acf06bd

    SHA256

    1843c1b7e4384901bd8725daf296a716247c8636556b22af619b8485d9e27c57

    SHA512

    e79d15512cba63ee64fa38385db3b1cf5276c747386581d5c270ed26f3738ac280a66284026d265cea1dc0ab808d6e0c6b4981a4699531db83869b41ff8d3458

  • C:\Users\Public\Music\systemcheck.exe
    Filesize

    365KB

    MD5

    8df9290cc9f9b656cc7575e3e87fa487

    SHA1

    28420e78c0ca5afcc7605f67b45693766e7eed7f

    SHA256

    8ee067f5b4f79f8c97d817c026810f5ae9fbeafef5ea707dca7520e7ddf5b1c2

    SHA512

    059541b78ae5bfcf2c8eea1e86d4262343c9ea665c87818e613c1f486b90723c2263ee98ee555fec1e0081ff7437ccc0bb512ad619364432b1e5d3f55d891042

  • memory/4272-4-0x000001F7D24A0000-0x000001F7D2912000-memory.dmp
    Filesize

    4.4MB

  • memory/4272-5-0x000001F7D20A0000-0x000001F7D24A0000-memory.dmp
    Filesize

    4.0MB

  • memory/4272-6-0x000001F7D24A0000-0x000001F7D2912000-memory.dmp
    Filesize

    4.4MB

  • memory/4272-7-0x000001F7D20A0000-0x000001F7D24A0000-memory.dmp
    Filesize

    4.0MB