Analysis

  • max time kernel
    143s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-04-2024 12:30

General

  • Target

    b29d07127815208e2f86be5a847321ce644558db090d4cd40a0555238f657bde.exe

  • Size

    419KB

  • MD5

    a25cd6806f68188fa72153697ce01d34

  • SHA1

    36b3ca9f1325add449778203b6899671bf9832fe

  • SHA256

    b29d07127815208e2f86be5a847321ce644558db090d4cd40a0555238f657bde

  • SHA512

    dc566b357531f272155ca5f670973599c7455575278e0911fb5ab752fbefb69f7a082f15382779cf84a2db5e456021583521f26dfc2f3c6dd1a5b9dcb6953e1c

  • SSDEEP

    6144:JWigHbPbnW5OdaZLB+zKwTTfRLpEGzYSIpB5Apy3E6:JZ2zzsZN+JTTlptIp7AIU6

Malware Config

Extracted

Family

stealc

C2

http://185.172.128.111

Attributes
  • url_path

    /f993692117a3fda2.php

Signatures

  • SectopRAT

    SectopRAT is a remote access trojan first seen in November 2019.

  • SectopRAT payload 1 IoCs
  • Stealc

    Stealc is an infostealer written in C++.

  • Downloads MZ/PE file
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 1 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Program crash 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 12 IoCs
  • Suspicious behavior: MapViewOfSection 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b29d07127815208e2f86be5a847321ce644558db090d4cd40a0555238f657bde.exe
    "C:\Users\Admin\AppData\Local\Temp\b29d07127815208e2f86be5a847321ce644558db090d4cd40a0555238f657bde.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4840
    • C:\Users\Admin\AppData\Local\Temp\u3qg.0.exe
      "C:\Users\Admin\AppData\Local\Temp\u3qg.0.exe"
      2⤵
      • Executes dropped EXE
      PID:2996
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2996 -s 1052
        3⤵
        • Program crash
        PID:1508
    • C:\Users\Admin\AppData\Local\Temp\u3qg.2\run.exe
      "C:\Users\Admin\AppData\Local\Temp\u3qg.2\run.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2392
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\SysWOW64\cmd.exe
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of WriteProcessMemory
        PID:1436
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
          C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          PID:4496
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4840 -s 1160
      2⤵
      • Program crash
      PID:3636
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=1412 --field-trial-handle=2276,i,5697607538120380977,9987005253899555344,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:832
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 2996 -ip 2996
      1⤵
        PID:2304
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 4840 -ip 4840
        1⤵
          PID:1596
        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --lang=en-US --service-sandbox-type=service --no-appcompat-clear --mojo-platform-channel-handle=2772 --field-trial-handle=2276,i,5697607538120380977,9987005253899555344,262144 --variations-seed-version /prefetch:8
          1⤵
            PID:412
          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --no-appcompat-clear --mojo-platform-channel-handle=2640 --field-trial-handle=2276,i,5697607538120380977,9987005253899555344,262144 --variations-seed-version /prefetch:3
            1⤵
              PID:4040

            Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

            Loading Replay Monitor...

            Downloads

            • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Network\SCT Auditing Pending Reports

              Filesize

              2B

              MD5

              d751713988987e9331980363e24189ce

              SHA1

              97d170e1550eee4afc0af065b78cda302a97674c

              SHA256

              4f53cda18c2baa0c0354bb5f9a3ecbe5ed12ab4d8e11ba873c2f11161202b945

              SHA512

              b25b294cb4deb69ea00a4c3cf3113904801b6015e5956bd019a8570b1fe1d6040e944ef3cdee16d0a46503ca6e659a25f21cf9ceddc13f352a3c98138c15d6af

            • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Network\Sdch Dictionaries

              Filesize

              40B

              MD5

              20d4b8fa017a12a108c87f540836e250

              SHA1

              1ac617fac131262b6d3ce1f52f5907e31d5f6f00

              SHA256

              6028bd681dbf11a0a58dde8a0cd884115c04caa59d080ba51bde1b086ce0079d

              SHA512

              507b2b8a8a168ff8f2bdafa5d9d341c44501a5f17d9f63f3d43bd586bc9e8ae33221887869fa86f845b7d067cb7d2a7009efd71dda36e03a40a74fee04b86856

            • C:\Users\Admin\AppData\Local\Temp\4d76085a

              Filesize

              1.4MB

              MD5

              6f030cd95cc99214e69d1df5ef028bc4

              SHA1

              e7e12c40346f991b03554d0879a14eca04fd9db3

              SHA256

              ee3f7123c34d79adfaf98ab0b7ecde89c363d2b313091dfe23366a23d6f40e4d

              SHA512

              ee805d3e69c6a0bfbb7589d2e34f8e8905a50e40590a5886fc54143bcc0b6705a81322c0b64e4dcbf295af65cb11c18046c32d69976fab42e98b2067c245559d

            • C:\Users\Admin\AppData\Local\Temp\tmpAEA7.tmp

              Filesize

              20KB

              MD5

              c9ff7748d8fcef4cf84a5501e996a641

              SHA1

              02867e5010f62f97ebb0cfb32cb3ede9449fe0c9

              SHA256

              4d3f3194cb1133437aa69bb880c8cbb55ddf06ff61a88ca6c3f1bbfbfd35d988

              SHA512

              d36054499869a8f56ac8547ccd5455f1252c24e17d2b185955390b32da7e2a732ace4e0f30f9493fcc61425a2e31ed623465f998f41af69423ee0e3ed1483a73

            • C:\Users\Admin\AppData\Local\Temp\tmpBFE1.tmp

              Filesize

              20KB

              MD5

              91dbaf73c1a8c55254d90272f998e412

              SHA1

              2b86b31c8c00c937291e5ac3b1d134a5df959acf

              SHA256

              0628922305d2478ba75a48efadf932d439616eaf1ff908be334793f7bde28107

              SHA512

              109f4f59616cc1d1682b4d9468804f7668c77ce1878afec06a57037193f31a9c1c39f5d269277462936373b129d26488cddcc34d455c27185534e7754baaa988

            • C:\Users\Admin\AppData\Local\Temp\u3qg.0.exe

              Filesize

              275KB

              MD5

              4e9e2fa0adc8b33c0c223996e6c56e8d

              SHA1

              8cc3ed537af667a5de8347568dd54bdbef3a0522

              SHA256

              c4dd0dcea75c7523d0d646a630e593e4905894b12192dcbf7d2ffd22e0e3b52c

              SHA512

              089fd6bd7ac9d8d71ba74e79f7fca0e63026afe362d3b231d46c24117b9abe490d3aa121bb71644897c4a2a3b98e2eae2b5d7a0ec5237b2f69034ab59e2568d2

            • C:\Users\Admin\AppData\Local\Temp\u3qg.1.zip

              Filesize

              3.7MB

              MD5

              78d3ca6355c93c72b494bb6a498bf639

              SHA1

              2fa4e5df74bfe75c207c881a1b0d3bc1c62c8b0e

              SHA256

              a1dd547a63b256aa6a16871ed03f8b025226f7617e67b8817a08444df077b001

              SHA512

              1b2df7bee2514aee7efd3579f5dd33c76b40606d07dba69a34c45747662fad61174db4931bca02b058830107959205e889fee74f8ccc9f6e03f9fd111761f4ea

            • C:\Users\Admin\AppData\Local\Temp\u3qg.2\UIxMarketPlugin.dll

              Filesize

              1.6MB

              MD5

              d1ba9412e78bfc98074c5d724a1a87d6

              SHA1

              0572f98d78fb0b366b5a086c2a74cc68b771d368

              SHA256

              cbcea8f28d8916219d1e8b0a8ca2db17e338eb812431bc4ad0cb36c06fd67f15

              SHA512

              8765de36d3824b12c0a4478c31b985878d4811bd0e5b6fba4ea07f8c76340bd66a2da3490d4871b95d9a12f96efc25507dfd87f431de211664dbe9a9c914af6f

            • C:\Users\Admin\AppData\Local\Temp\u3qg.2\bunch.dat

              Filesize

              1.3MB

              MD5

              1e8237d3028ab52821d69099e0954f97

              SHA1

              30a6ae353adda0c471c6ed5b7a2458b07185abf2

              SHA256

              9387488f9d338e211be2cb45109bf590a5070180bc0d4a703f70d3cb3c4e1742

              SHA512

              a6406d7c18694ee014d59df581f1f76e980b68e3361ae680dc979606a423eba48d35e37f143154dd97fe5f066baf0ea51a2e9f8bc822d593e1cba70ead6559f3

            • C:\Users\Admin\AppData\Local\Temp\u3qg.2\relay.dll

              Filesize

              1.5MB

              MD5

              10d51becd0bbce0fab147ff9658c565e

              SHA1

              4689a18112ff876d3c066bc8c14a08fd6b7b7a4a

              SHA256

              7b2db9c88f60ed6dd24b1dec321a304564780fdb191a96ec35c051856128f1ed

              SHA512

              29faf493bb28f7842c905adc5312f31741effb09f841059b53d73b22aea2c4d41d73db10bbf37703d6aeb936ffacbc756a3cc85ba3c0b6a6863ef4d27fefcd29

            • C:\Users\Admin\AppData\Local\Temp\u3qg.2\run.exe

              Filesize

              2.4MB

              MD5

              9fb4770ced09aae3b437c1c6eb6d7334

              SHA1

              fe54b31b0db8665aa5b22bed147e8295afc88a03

              SHA256

              a05b592a971fe5011554013bcfe9a4aaf9cfc633bdd1fe3a8197f213d557b8d3

              SHA512

              140fee6daf23fe8b7e441b3b4de83554af804f00ecedc421907a385ac79a63164bd9f28b4be061c2ea2262755d85e14d3a8e7dc910547837b664d78d93667256

            • C:\Users\Admin\AppData\Local\Temp\u3qg.2\whale.dbf

              Filesize

              85KB

              MD5

              a723bf46048e0bfb15b8d77d7a648c3e

              SHA1

              8952d3c34e9341e4425571e10f22b782695bb915

              SHA256

              b440170853bdb43b66497f701aee2901080326975140b095a1669cb9dee13422

              SHA512

              ca8ea2f7f3c7af21b5673a0a3f2611b6580a7ed02efa2cfd8b343eb644ff09682bde43b25ef7aab68530d5ce31dcbd252c382dd336ecb610d4c4ebde78347273

            • memory/1436-123-0x00000000730F0000-0x000000007326B000-memory.dmp

              Filesize

              1.5MB

            • memory/1436-125-0x00007FF98FED0000-0x00007FF9900C5000-memory.dmp

              Filesize

              2.0MB

            • memory/1436-127-0x00000000730F0000-0x000000007326B000-memory.dmp

              Filesize

              1.5MB

            • memory/1436-128-0x00000000730F0000-0x000000007326B000-memory.dmp

              Filesize

              1.5MB

            • memory/1436-130-0x00000000730F0000-0x000000007326B000-memory.dmp

              Filesize

              1.5MB

            • memory/2392-121-0x00000000730F0000-0x000000007326B000-memory.dmp

              Filesize

              1.5MB

            • memory/2392-118-0x00000000730F0000-0x000000007326B000-memory.dmp

              Filesize

              1.5MB

            • memory/2392-111-0x00000000730F0000-0x000000007326B000-memory.dmp

              Filesize

              1.5MB

            • memory/2392-112-0x00007FF98FED0000-0x00007FF9900C5000-memory.dmp

              Filesize

              2.0MB

            • memory/2392-119-0x00000000730F0000-0x000000007326B000-memory.dmp

              Filesize

              1.5MB

            • memory/2996-21-0x0000000000400000-0x0000000000846000-memory.dmp

              Filesize

              4.3MB

            • memory/2996-20-0x0000000000400000-0x0000000000846000-memory.dmp

              Filesize

              4.3MB

            • memory/2996-19-0x0000000002350000-0x0000000002377000-memory.dmp

              Filesize

              156KB

            • memory/2996-18-0x0000000000920000-0x0000000000A20000-memory.dmp

              Filesize

              1024KB

            • memory/4496-131-0x0000000073E20000-0x0000000075074000-memory.dmp

              Filesize

              18.3MB

            • memory/4496-135-0x0000000000FC0000-0x0000000001086000-memory.dmp

              Filesize

              792KB

            • memory/4496-172-0x0000000005820000-0x0000000005830000-memory.dmp

              Filesize

              64KB

            • memory/4496-170-0x0000000008130000-0x000000000813A000-memory.dmp

              Filesize

              40KB

            • memory/4496-145-0x00000000065D0000-0x0000000006636000-memory.dmp

              Filesize

              408KB

            • memory/4496-144-0x00000000064E0000-0x00000000064FE000-memory.dmp

              Filesize

              120KB

            • memory/4496-134-0x00000000750D0000-0x0000000075880000-memory.dmp

              Filesize

              7.7MB

            • memory/4496-171-0x00000000750D0000-0x0000000075880000-memory.dmp

              Filesize

              7.7MB

            • memory/4496-136-0x00000000056C0000-0x0000000005752000-memory.dmp

              Filesize

              584KB

            • memory/4496-137-0x0000000005D10000-0x00000000062B4000-memory.dmp

              Filesize

              5.6MB

            • memory/4496-138-0x0000000005820000-0x0000000005830000-memory.dmp

              Filesize

              64KB

            • memory/4496-139-0x0000000005A00000-0x0000000005BC2000-memory.dmp

              Filesize

              1.8MB

            • memory/4496-140-0x0000000005830000-0x00000000058A6000-memory.dmp

              Filesize

              472KB

            • memory/4496-141-0x0000000005790000-0x00000000057E0000-memory.dmp

              Filesize

              320KB

            • memory/4496-142-0x0000000005680000-0x000000000568A000-memory.dmp

              Filesize

              40KB

            • memory/4496-143-0x00000000069F0000-0x0000000006F1C000-memory.dmp

              Filesize

              5.2MB

            • memory/4840-16-0x0000000000A20000-0x0000000000B20000-memory.dmp

              Filesize

              1024KB

            • memory/4840-120-0x0000000000400000-0x000000000086B000-memory.dmp

              Filesize

              4.4MB

            • memory/4840-15-0x0000000000400000-0x000000000086B000-memory.dmp

              Filesize

              4.4MB

            • memory/4840-4-0x0000000000400000-0x000000000086B000-memory.dmp

              Filesize

              4.4MB

            • memory/4840-3-0x00000000024C0000-0x000000000252D000-memory.dmp

              Filesize

              436KB

            • memory/4840-17-0x00000000024C0000-0x000000000252D000-memory.dmp

              Filesize

              436KB

            • memory/4840-1-0x0000000000A20000-0x0000000000B20000-memory.dmp

              Filesize

              1024KB

            • memory/4840-40-0x0000000000400000-0x000000000086B000-memory.dmp

              Filesize

              4.4MB

            • memory/4840-2-0x0000000000400000-0x000000000086B000-memory.dmp

              Filesize

              4.4MB