Analysis

  • max time kernel
    133s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28/05/2024, 01:24

General

  • Target
    2024-05-28_e9d8b3b4983d72b659cd1763f7542d48_cobalt-strike_cobaltstrike.exe
  • Size 5.9MB
  • Sample240528-bsdabsaf36
  • SHA256 52a63696bb0e66024fbf0c2c586613d2d312b71fc0c7f5a7dfd10060ae787f8c
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10

Malware Config

Signatures

  • xmrig

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

  • UPX dump on OEP (original entry point) 37 IoCs
  • XMRig Miner payload 63 IoCs
  • Executes dropped EXE 21 IoCs
  • UPX packed file 63 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Drops file in Windows directory 21 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 42 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-05-28_e9d8b3b4983d72b659cd1763f7542d48_cobalt-strike_cobaltstrike.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-05-28_e9d8b3b4983d72b659cd1763f7542d48_cobalt-strike_cobaltstrike.exe"
    1⤵
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1272
    • C:\Windows\System\yfKYcBD.exe
      C:\Windows\System\yfKYcBD.exe
      2⤵
      • Executes dropped EXE
      PID:2304
    • C:\Windows\System\mJEukEU.exe
      C:\Windows\System\mJEukEU.exe
      2⤵
      • Executes dropped EXE
      PID:444
    • C:\Windows\System\eYCbZVE.exe
      C:\Windows\System\eYCbZVE.exe
      2⤵
      • Executes dropped EXE
      PID:2576
    • C:\Windows\System\LHtsJcy.exe
      C:\Windows\System\LHtsJcy.exe
      2⤵
      • Executes dropped EXE
      PID:2472
    • C:\Windows\System\ubKLXvN.exe
      C:\Windows\System\ubKLXvN.exe
      2⤵
      • Executes dropped EXE
      PID:628
    • C:\Windows\System\QiCgYbN.exe
      C:\Windows\System\QiCgYbN.exe
      2⤵
      • Executes dropped EXE
      PID:1928
    • C:\Windows\System\tIjgtQG.exe
      C:\Windows\System\tIjgtQG.exe
      2⤵
      • Executes dropped EXE
      PID:4996
    • C:\Windows\System\Atzjgzd.exe
      C:\Windows\System\Atzjgzd.exe
      2⤵
      • Executes dropped EXE
      PID:2820
    • C:\Windows\System\KlGXzEV.exe
      C:\Windows\System\KlGXzEV.exe
      2⤵
      • Executes dropped EXE
      PID:508
    • C:\Windows\System\XHaRfNV.exe
      C:\Windows\System\XHaRfNV.exe
      2⤵
      • Executes dropped EXE
      PID:588
    • C:\Windows\System\UZdFQqk.exe
      C:\Windows\System\UZdFQqk.exe
      2⤵
      • Executes dropped EXE
      PID:2676
    • C:\Windows\System\VmIURgl.exe
      C:\Windows\System\VmIURgl.exe
      2⤵
      • Executes dropped EXE
      PID:2980
    • C:\Windows\System\rYPlfls.exe
      C:\Windows\System\rYPlfls.exe
      2⤵
      • Executes dropped EXE
      PID:5040
    • C:\Windows\System\BSoZVXV.exe
      C:\Windows\System\BSoZVXV.exe
      2⤵
      • Executes dropped EXE
      PID:1460
    • C:\Windows\System\ioJAfkO.exe
      C:\Windows\System\ioJAfkO.exe
      2⤵
      • Executes dropped EXE
      PID:4964
    • C:\Windows\System\bByWQpk.exe
      C:\Windows\System\bByWQpk.exe
      2⤵
      • Executes dropped EXE
      PID:4556
    • C:\Windows\System\FDGHwWH.exe
      C:\Windows\System\FDGHwWH.exe
      2⤵
      • Executes dropped EXE
      PID:1888
    • C:\Windows\System\VBExlKo.exe
      C:\Windows\System\VBExlKo.exe
      2⤵
      • Executes dropped EXE
      PID:4580
    • C:\Windows\System\XiJLYIU.exe
      C:\Windows\System\XiJLYIU.exe
      2⤵
      • Executes dropped EXE
      PID:1500
    • C:\Windows\System\oEPaSrv.exe
      C:\Windows\System\oEPaSrv.exe
      2⤵
      • Executes dropped EXE
      PID:2008
    • C:\Windows\System\lGfevUl.exe
      C:\Windows\System\lGfevUl.exe
      2⤵
      • Executes dropped EXE
      PID:4212

Network

        MITRE ATT&CK Matrix

        Replay Monitor

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        Downloads

        BSoZVXV.exe

        • Path C:\Windows\System\BSoZVXV.exe
        • Size 1.9MB
        • SHA256 60a5948084400707991c40b4413636168d0f0501efbc67fab461d4937de55fb6
        • MD5 SHA1 SHA512 SSDEEP

        FDGHwWH.exe

        • Path C:\Windows\System\FDGHwWH.exe
        • Size 1.8MB
        • SHA256 4ce197747d9fbeeec8496c26db012627d7ce7e6aa1a732a7c731d6ef8431204b
        • MD5 SHA1 SHA512 SSDEEP

        LHtsJcy.exe

        • Path C:\Windows\System\LHtsJcy.exe
        • Size 2.1MB
        • SHA256 3ededef3bd2586830b0a8597cb8ce36b4909b0421f6d3ed699083dfd6f8c0a7d
        • MD5 SHA1 SHA512 SSDEEP

        VmIURgl.exe

        • Path C:\Windows\System\VmIURgl.exe
        • Size 5.4MB
        • SHA256 caa068826195e26df36f4f536e4c6574635de1b7a9a02c85ee8ca5d8d8224bf8
        • MD5 SHA1 SHA512 SSDEEP

        XiJLYIU.exe

        • Path C:\Windows\System\XiJLYIU.exe
        • Size 1.1MB
        • SHA256 2c35d06862247b330fc3f8d9e6af582fea555fda1909ac568685a45fc440b438
        • MD5 SHA1 SHA512 SSDEEP

        bByWQpk.exe

        • Path C:\Windows\System\bByWQpk.exe
        • Size 1.8MB
        • SHA256 877be2224a2b649da5f78203ecb3453feb6fa6bbbc2d6c8d511c50eacb8915e1
        • MD5 SHA1 SHA512 SSDEEP

        bByWQpk.exe

        • Path C:\Windows\System\bByWQpk.exe
        • Size 5.3MB
        • SHA256 cea51cc96156d8e8255e2ccada29ae7300a3315f995e7ba6d44446f87dc9a09d
        • MD5 SHA1 SHA512 SSDEEP

        mJEukEU.exe

        • Path C:\Windows\System\mJEukEU.exe
        • Size 3.6MB
        • SHA256 6f83751bb7dc13a49d7ca6c6a874635ca4829b15e2d7e8a8c8ddaf2890ac09c0
        • MD5 SHA1 SHA512 SSDEEP

        oEPaSrv.exe

        • Path C:\Windows\System\oEPaSrv.exe
        • Size 1.2MB
        • SHA256 c07d701eb04ab4f8699484a3bd23da869373ffe5abb89855dad47bf019625666
        • MD5 SHA1 SHA512 SSDEEP

        memory/444-14-0x00007FF6C53F0000-0x00007FF6C5744000-memory.dmp

        memory/444-140-0x00007FF6C53F0000-0x00007FF6C5744000-memory.dmp

        memory/508-147-0x00007FF6E0120000-0x00007FF6E0474000-memory.dmp

        memory/508-56-0x00007FF6E0120000-0x00007FF6E0474000-memory.dmp

        memory/508-126-0x00007FF6E0120000-0x00007FF6E0474000-memory.dmp

        memory/588-148-0x00007FF6E2FD0000-0x00007FF6E3324000-memory.dmp

        memory/588-63-0x00007FF6E2FD0000-0x00007FF6E3324000-memory.dmp

        memory/628-95-0x00007FF6349D0000-0x00007FF634D24000-memory.dmp

        memory/628-143-0x00007FF6349D0000-0x00007FF634D24000-memory.dmp

        memory/628-32-0x00007FF6349D0000-0x00007FF634D24000-memory.dmp

        memory/1272-1-0x000001392BF90000-0x000001392BFA0000-memory.dmp

        memory/1272-62-0x00007FF634870000-0x00007FF634BC4000-memory.dmp

        memory/1272-0-0x00007FF634870000-0x00007FF634BC4000-memory.dmp

        memory/1460-152-0x00007FF6E5C70000-0x00007FF6E5FC4000-memory.dmp

        memory/1460-90-0x00007FF6E5C70000-0x00007FF6E5FC4000-memory.dmp

        memory/1500-118-0x00007FF633BE0000-0x00007FF633F34000-memory.dmp

        memory/1500-157-0x00007FF633BE0000-0x00007FF633F34000-memory.dmp

        memory/1500-137-0x00007FF633BE0000-0x00007FF633F34000-memory.dmp

        memory/1888-136-0x00007FF7D6420000-0x00007FF7D6774000-memory.dmp

        memory/1888-155-0x00007FF7D6420000-0x00007FF7D6774000-memory.dmp

        memory/1888-109-0x00007FF7D6420000-0x00007FF7D6774000-memory.dmp

        memory/1928-144-0x00007FF77CD70000-0x00007FF77D0C4000-memory.dmp

        memory/1928-38-0x00007FF77CD70000-0x00007FF77D0C4000-memory.dmp

        memory/1928-101-0x00007FF77CD70000-0x00007FF77D0C4000-memory.dmp

        memory/2008-158-0x00007FF7DC5A0000-0x00007FF7DC8F4000-memory.dmp

        memory/2008-127-0x00007FF7DC5A0000-0x00007FF7DC8F4000-memory.dmp

        memory/2304-139-0x00007FF69C920000-0x00007FF69CC74000-memory.dmp

        memory/2304-8-0x00007FF69C920000-0x00007FF69CC74000-memory.dmp

        memory/2472-26-0x00007FF638800000-0x00007FF638B54000-memory.dmp

        memory/2472-142-0x00007FF638800000-0x00007FF638B54000-memory.dmp

        memory/2576-141-0x00007FF62AF40000-0x00007FF62B294000-memory.dmp

        memory/2576-20-0x00007FF62AF40000-0x00007FF62B294000-memory.dmp

        memory/2676-149-0x00007FF73E750000-0x00007FF73EAA4000-memory.dmp

        memory/2676-69-0x00007FF73E750000-0x00007FF73EAA4000-memory.dmp

        memory/2820-146-0x00007FF69C6A0000-0x00007FF69C9F4000-memory.dmp

        memory/2820-50-0x00007FF69C6A0000-0x00007FF69C9F4000-memory.dmp

        memory/2980-129-0x00007FF6446D0000-0x00007FF644A24000-memory.dmp

        memory/2980-150-0x00007FF6446D0000-0x00007FF644A24000-memory.dmp

        memory/2980-74-0x00007FF6446D0000-0x00007FF644A24000-memory.dmp

        memory/4212-132-0x00007FF6F6080000-0x00007FF6F63D4000-memory.dmp

        memory/4212-138-0x00007FF6F6080000-0x00007FF6F63D4000-memory.dmp

        memory/4212-159-0x00007FF6F6080000-0x00007FF6F63D4000-memory.dmp

        memory/4556-100-0x00007FF6DDD00000-0x00007FF6DE054000-memory.dmp

        memory/4556-135-0x00007FF6DDD00000-0x00007FF6DE054000-memory.dmp

        memory/4556-153-0x00007FF6DDD00000-0x00007FF6DE054000-memory.dmp

        memory/4580-115-0x00007FF608C60000-0x00007FF608FB4000-memory.dmp

        memory/4580-154-0x00007FF608C60000-0x00007FF608FB4000-memory.dmp

        memory/4964-94-0x00007FF666710000-0x00007FF666A64000-memory.dmp

        memory/4964-134-0x00007FF666710000-0x00007FF666A64000-memory.dmp

        memory/4964-156-0x00007FF666710000-0x00007FF666A64000-memory.dmp

        memory/4996-145-0x00007FF682E10000-0x00007FF683164000-memory.dmp

        memory/4996-44-0x00007FF682E10000-0x00007FF683164000-memory.dmp

        memory/5040-133-0x00007FF642780000-0x00007FF642AD4000-memory.dmp

        memory/5040-151-0x00007FF642780000-0x00007FF642AD4000-memory.dmp

        memory/5040-86-0x00007FF642780000-0x00007FF642AD4000-memory.dmp