Analysis

  • max time kernel
    119s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    17/02/2025, 02:38

General

  • Target

    3217397c6b12d88b5039a4c42848d8a6b03c37ecf322d9cf0836eebacc81149f.xlam

  • Size

    157KB

  • MD5

    164f7996b586499ba1ebdb8e10f5581e

  • SHA1

    72c005e12d9ee2c33c161c37eccbea2b7922be12

  • SHA256

    3217397c6b12d88b5039a4c42848d8a6b03c37ecf322d9cf0836eebacc81149f

  • SHA512

    c88a1c95dc83bf8bbacbd93cf9d9519a23de7e0158c8f39b2a371963e58eba25610562097c9d679f868e7aa0799cc4bb91e78acf8b82a9d8d09e7c8bdf6e0790

  • SSDEEP

    3072:FMKu+tcIroKu3COaWgPn8/wa+5pbthx0cLKCFj8Q8YwzpsYc4o+1HBZGBG:FM3nIrhu3Pa//tLvmQopcnqhZ6G

Malware Config

Extracted

Family

crimsonrat

C2

209.127.18.107

101.125.206.108

Signatures

  • CrimsonRat

    Crimson RAT is a malware linked to a Pakistani-linked threat actor.

  • Crimsonrat family
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Office loads VBA resources, possible macro or embedded object present
  • Enumerates system info in registry 2 TTPs 1 IoCs
  • Modifies registry class 64 IoCs
  • NTFS ADS 1 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
    "C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\3217397c6b12d88b5039a4c42848d8a6b03c37ecf322d9cf0836eebacc81149f.xlam
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Enumerates system info in registry
    • Modifies registry class
    • NTFS ADS
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2316
    • C:\Users\Admin\Exl-43\jivarthr edis.exe
      "C:\Users\Admin\Exl-43\jivarthr edis.exe"
      2⤵
      • Executes dropped EXE
      PID:1616

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\3217397c6b12d88b5039a4c42848d8a6b03c37ecf322d9cf0836eebacc81149f.xlam.xlsx

    Filesize

    11KB

    MD5

    afc4e11b0d104ebdb0bfb869803e99bb

    SHA1

    794e9a2f6dd374d0ff6d74faa1d87a7a2a7b6d30

    SHA256

    d1d6b2dbb200321b0d69db262591a8ee2d7e2c7320d11fc67fc11244206736c2

    SHA512

    3e46cd662af47e69623978e03158a2da59c6624acb37c67726c1377caf3d711498fec6bf3eafd4a76be6af3be887bd19d98d020b7e52fc69ec96854cf3398d44

  • C:\Users\Admin\Exl-43\docs.zip

    Filesize

    157KB

    MD5

    164f7996b586499ba1ebdb8e10f5581e

    SHA1

    72c005e12d9ee2c33c161c37eccbea2b7922be12

    SHA256

    3217397c6b12d88b5039a4c42848d8a6b03c37ecf322d9cf0836eebacc81149f

    SHA512

    c88a1c95dc83bf8bbacbd93cf9d9519a23de7e0158c8f39b2a371963e58eba25610562097c9d679f868e7aa0799cc4bb91e78acf8b82a9d8d09e7c8bdf6e0790

  • C:\Users\Admin\Exl-43\docs.zip:Zone.Identifier

    Filesize

    26B

    MD5

    fbccf14d504b7b2dbcb5a5bda75bd93b

    SHA1

    d59fc84cdd5217c6cf74785703655f78da6b582b

    SHA256

    eacd09517ce90d34ba562171d15ac40d302f0e691b439f91be1b6406e25f5913

    SHA512

    aa1d2b1ea3c9de3ccadb319d4e3e3276a2f27dd1a5244fe72de2b6f94083dddc762480482c5c2e53f803cd9e3973ddefc68966f974e124307b5043e654443b98

  • C:\Users\Admin\Exl-43\xl\jivarthr edis.zip

    Filesize

    410KB

    MD5

    4eafa3bec4035e667774d517b2a2ebdb

    SHA1

    d34821f5a1a44d67f2da23e10d8e3846dec1645e

    SHA256

    edfe70cd0ebde54c87f6913958a66519c273b7f75dbd1dc4a3da9dd3a3e8e3e6

    SHA512

    fcd7408ab154cb9a5f5fb66c2c3966ab8921dff8b1cb5dcb98ffa18bff2c069cd6b752695dfaed6398d4e248b455e8b151b5267a1f45d715227bfb9222306f42

  • \Users\Admin\Exl-43\jivarthr edis.exe

    Filesize

    15.8MB

    MD5

    fed22809d70062733cd1c34e16b75c05

    SHA1

    4520676983fcc20cfc4ca5be1e2a7566f3491ffb

    SHA256

    947e75dc1f9b8a6d74a6d55afa7513ed86db907965cf0935ebb26c17f0ec6c5d

    SHA512

    b0f54b6e3d5917e9aebab614391ec8f1bb8c00ba9d366f707e02fa17582f4f7101aefa434291fd031d5bd0407c06dd2ed9fbabe5d7e8f5bd34bdb0240529c98d

  • memory/2316-11-0x00000000007F0000-0x00000000008F0000-memory.dmp

    Filesize

    1024KB

  • memory/2316-50-0x0000000005840000-0x0000000005841000-memory.dmp

    Filesize

    4KB

  • memory/2316-10-0x00000000007F0000-0x00000000008F0000-memory.dmp

    Filesize

    1024KB

  • memory/2316-9-0x00000000007F0000-0x00000000008F0000-memory.dmp

    Filesize

    1024KB

  • memory/2316-5-0x00000000007F0000-0x00000000008F0000-memory.dmp

    Filesize

    1024KB

  • memory/2316-7-0x00000000007F0000-0x00000000008F0000-memory.dmp

    Filesize

    1024KB

  • memory/2316-6-0x00000000007F0000-0x00000000008F0000-memory.dmp

    Filesize

    1024KB

  • memory/2316-4-0x00000000007F0000-0x00000000008F0000-memory.dmp

    Filesize

    1024KB

  • memory/2316-1-0x000000007254D000-0x0000000072558000-memory.dmp

    Filesize

    44KB

  • memory/2316-12-0x00000000007F0000-0x00000000008F0000-memory.dmp

    Filesize

    1024KB

  • memory/2316-8-0x00000000007F0000-0x00000000008F0000-memory.dmp

    Filesize

    1024KB

  • memory/2316-15-0x00000000068F0000-0x00000000069F0000-memory.dmp

    Filesize

    1024KB

  • memory/2316-2-0x0000000006AF0000-0x0000000006BF0000-memory.dmp

    Filesize

    1024KB

  • memory/2316-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/2316-348-0x000000007254D000-0x0000000072558000-memory.dmp

    Filesize

    44KB

  • memory/2316-349-0x00000000007F0000-0x00000000008F0000-memory.dmp

    Filesize

    1024KB

  • memory/2316-350-0x00000000068F0000-0x00000000069F0000-memory.dmp

    Filesize

    1024KB

  • memory/2316-351-0x0000000005840000-0x0000000005841000-memory.dmp

    Filesize

    4KB