Analysis

  • max time kernel
    239s
  • max time network
    266s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    08-05-2024 23:12

General

  • Target

    683fc3a92e9e14798ea87fddef2f2bcf9e548758233bff0ca3267a71741b3d13.exe

  • Size

    445KB

  • MD5

    80a4caed5d40489be77cb54617a91de4

  • SHA1

    51a1ae13862055f86993ea9ffb4036b4d911d79c

  • SHA256

    683fc3a92e9e14798ea87fddef2f2bcf9e548758233bff0ca3267a71741b3d13

  • SHA512

    7dfe4b0fa47314f72af8378efccc1b32585ff3c348f4cf9de60a7411f020115fc277074d2a23f017b10774d38f53ade15b6db4943326563644f525576d253f37

  • SSDEEP

    6144:4DB3yaQTpQbjXidskjQ/K+VhYNUKD7ZCtAu9hZlpw/21:qBtQdyXy0XhYNdTu9Npw/21

Malware Config

Extracted

Family

stealc

C2

http://185.172.128.150

Attributes
  • url_path

    /c698e1bc8a2f5e6d.php

Signatures

  • Detect ZGRat V1 3 IoCs
  • Detects Arechclient2 RAT 1 IoCs

    Arechclient2.

  • SectopRAT

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

  • SectopRAT payload 1 IoCs
  • Stealc

    Stealc is an infostealer written in C++.

  • ZGRat

    ZGRat is remote access trojan written in C#.

  • Downloads MZ/PE file
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 16 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Suspicious behavior: EnumeratesProcesses 12 IoCs
  • Suspicious behavior: MapViewOfSection 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 7 IoCs
  • Suspicious use of SendNotifyMessage 7 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 27 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\683fc3a92e9e14798ea87fddef2f2bcf9e548758233bff0ca3267a71741b3d13.exe
    "C:\Users\Admin\AppData\Local\Temp\683fc3a92e9e14798ea87fddef2f2bcf9e548758233bff0ca3267a71741b3d13.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2648
    • C:\Users\Admin\AppData\Local\Temp\u21k.0.exe
      "C:\Users\Admin\AppData\Local\Temp\u21k.0.exe"
      2⤵
      • Executes dropped EXE
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:2992
    • C:\Users\Admin\AppData\Local\Temp\u21k.2\run.exe
      "C:\Users\Admin\AppData\Local\Temp\u21k.2\run.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:1632
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\SysWOW64\cmd.exe
        3⤵
        • Loads dropped DLL
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of WriteProcessMemory
        PID:1656
        • 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:2308
    • C:\Users\Admin\AppData\Local\Temp\u21k.3.exe
      "C:\Users\Admin\AppData\Local\Temp\u21k.3.exe"
      2⤵
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:1244
      • C:\Users\Admin\AppData\Local\Temp\iolo\dm\SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
        "C:\Users\Admin\AppData\Local\Temp\iolo\dm\SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe" /eieci=11A12794-499E-4FA0-A281-A9A9AA8B2685 /eipi=5488CB36-BE62-4606-B07B-2EE938868BD1
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2032

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\ApplicationInsights\81950f7e7cbd108086cf2da3a401afdfffc60d9b485aac5dd52f7a137c00f950\1a43233d3cd44fa3a626560d5f564741.tmp

    Filesize

    1KB

    MD5

    0ebf1be3343441ca377639c38fb4127d

    SHA1

    f6033913389ca06d673986bbf8c147a9adcb7527

    SHA256

    1646323bffc014bbec6e03feaf224b219d2188b2b88d294ee86b31f4cf00e20a

    SHA512

    78564ae49c3bc3da3020a05097da07d9616c3391445945383e950c9c4813201e259bfd571cd8525e93afd9287e213ee6e2a9bb13f2f51990a705aad1fb15b0a4

  • C:\Users\Admin\AppData\Local\Temp\1eb3e29d

    Filesize

    1.4MB

    MD5

    176c02afd3c74cf561afe2c2efcaa48a

    SHA1

    1ca9b68555af64b52b8dfae944d1f30cb8c641cf

    SHA256

    2df7fa1c40e59ed160623a0ca7f8fe5202f8647af99a1f1c0b9078dc769dd598

    SHA512

    a0d2f126e3fd8d2a838d7b168b64541d15b4eed474743cfe6a70f30c845f035ca8554b29a8218a43035b0371b0ac1486e704f500ef7fdadcacbc2e5213e6ea86

  • C:\Users\Admin\AppData\Local\Temp\U21K1~1.ZIP

    Filesize

    1.6MB

    MD5

    9bb67e904ac371b5ffd143f8fb54e1e2

    SHA1

    58009e463133af8b89b59716fe255b118eca872c

    SHA256

    44afbc66f029be48db5d01678a0af7baf541e4a61d4b07391aa0470f0a961ded

    SHA512

    573c196dc87a1d3ea22b3ebdd2be1e4fbfbd3ea431694ec5e503f5cc6717b7d63a478c5c981ba5b467176aadd352c92f1d026b60a28b8ff76390af6903c1cdc0

  • C:\Users\Admin\AppData\Local\Temp\tmp451D.tmp

    Filesize

    20KB

    MD5

    c9ff7748d8fcef4cf84a5501e996a641

    SHA1

    02867e5010f62f97ebb0cfb32cb3ede9449fe0c9

    SHA256

    4d3f3194cb1133437aa69bb880c8cbb55ddf06ff61a88ca6c3f1bbfbfd35d988

    SHA512

    d36054499869a8f56ac8547ccd5455f1252c24e17d2b185955390b32da7e2a732ace4e0f30f9493fcc61425a2e31ed623465f998f41af69423ee0e3ed1483a73

  • C:\Users\Admin\AppData\Local\Temp\u21k.2\AsIO.dll

    Filesize

    120KB

    MD5

    f383f6f4e764619bd19e319335d3ef2b

    SHA1

    99f287e49a15e495b4ead8e5589364a5f87b357e

    SHA256

    03951dfe05bf74c61568aed50b9d8ce5ecf0e0c2b8e73bc37e1a699ae7eebc9d

    SHA512

    6fa960a084f42e6de25b74782d205c48ca9329997fc2ae8db902bb653da5e878ed92ced6b37472248d5bdc820fc48080ae4fce41556c4b20a049e30bf93d6934

  • C:\Users\Admin\AppData\Local\Temp\u21k.2\doubled.doc

    Filesize

    1.2MB

    MD5

    f344794dc910dc343f92ded2c6b5e0ab

    SHA1

    e5878518ce55ce5bd1890d5e04a82eb22d5a848a

    SHA256

    3cf94707697ce0141960b05a15cbd3c3b791196995b1d21c4ff6bfb59997e235

    SHA512

    ee00ad0c728c750b6c75001ba52df7ef367bebf1cbc01e2c9370dd42b1867b5347d5e68254f427dddde3214f2fae1341ab76c7faa3a4724e1d1d43fae97d3a58

  • C:\Users\Admin\AppData\Local\Temp\u21k.2\protactinium.log

    Filesize

    84KB

    MD5

    a276acc3fd657d7665bd4ddce8fb9749

    SHA1

    c02642eec3f4e8b0314045ee95e0a15abd853ea8

    SHA256

    6565f36d224ff27d89ad39a0d87f851f64308834d86e8a7cd02e9e1ea44187c8

    SHA512

    178476d229ff011cb1f39048acae46b42a80b2ec209b283a8237604646b09224446c5bb3a690191c4fd58813611d7c06b4fb23699cd76ad020a5d0bf4d456d79

  • \Users\Admin\AppData\Local\Temp\u21k.0.exe

    Filesize

    223KB

    MD5

    280229b137b0f36f2b18b9bc7841995d

    SHA1

    d800c8ecc758ccacfe9a91efd45904efcc17b84a

    SHA256

    49533fc0ca008e430d35fdabab4b200a70e629e62f5b16f9157b5a82b6494536

    SHA512

    aeb7566ad83b6b1a01e2d8f6e557a18a75a8bd4229f72cc9e1b1ffe9dd86d14469937eea221e0d436274d4444d4f1732098b98ca3ddc3c7aec65867107fbdec5

  • \Users\Admin\AppData\Local\Temp\u21k.2\ASUS_WMI.dll

    Filesize

    224KB

    MD5

    3f109a02c8d642e8003a1188df40d861

    SHA1

    f723f38471b8872443aa9177eef12a96c02cc84a

    SHA256

    6523b44da6fa7078c7795b7705498e487b0625e28e15aec2d270c6e4a909b5a5

    SHA512

    023696a52d48c465ab62e3ee754b445093b8a0ed0a232b430ce1f0db3dae382c9e1fba210c2b04d1018cc29bfb69c546976912f3939a76e98bcb792ae57af0da

  • \Users\Admin\AppData\Local\Temp\u21k.2\ATKEX.dll

    Filesize

    84KB

    MD5

    e68562f63265e1a70881446b4b9dc455

    SHA1

    da16ef9367bde3ce892b1a0e33bc179d8acdceb3

    SHA256

    c8b16f1c6883a23021da37d9116a757f971fe919d64ef8f9dba17a7d8dd39adb

    SHA512

    6bedea10a5b50f6e93e8566c18970c8ad1b8dfc7d5961069fc5d5216dcdded0b2a2ad8dd91f4ad80f8604d573a343c126df238ee5c448cdc26b899077957a674

  • \Users\Admin\AppData\Local\Temp\u21k.2\run.exe

    Filesize

    446KB

    MD5

    485008b43f0edceba0e0d3ca04bc1c1a

    SHA1

    55ae8f105af415bb763d1b87f6572f078052877c

    SHA256

    12c22ba646232d5d5087d0300d5cfd46fed424f26143a02dc866f1bfceab3c10

    SHA512

    402652786daae635c7405f5fa0924d768cbde2086f9f57b10f00f921dec98e37168f5c3a6baa5593ba9a478f3971d32747c517ffd485d25634c924e6b08815b1

  • \Users\Admin\AppData\Local\Temp\u21k.3.exe

    Filesize

    4.6MB

    MD5

    397926927bca55be4a77839b1c44de6e

    SHA1

    e10f3434ef3021c399dbba047832f02b3c898dbd

    SHA256

    4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

    SHA512

    cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

  • memory/1244-224-0x0000000000400000-0x00000000008AD000-memory.dmp

    Filesize

    4.7MB

  • memory/1244-235-0x0000000000400000-0x00000000008AD000-memory.dmp

    Filesize

    4.7MB

  • memory/1632-125-0x0000000074200000-0x0000000074374000-memory.dmp

    Filesize

    1.5MB

  • memory/1632-126-0x0000000077620000-0x00000000777C9000-memory.dmp

    Filesize

    1.7MB

  • memory/1632-133-0x0000000074200000-0x0000000074374000-memory.dmp

    Filesize

    1.5MB

  • memory/1656-243-0x0000000074200000-0x0000000074374000-memory.dmp

    Filesize

    1.5MB

  • memory/1656-175-0x0000000077620000-0x00000000777C9000-memory.dmp

    Filesize

    1.7MB

  • memory/2032-238-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2032-246-0x000000001E840000-0x000000001E8F2000-memory.dmp

    Filesize

    712KB

  • memory/2032-236-0x0000000001000000-0x0000000004834000-memory.dmp

    Filesize

    56.2MB

  • memory/2032-237-0x000000001EF20000-0x000000001F02A000-memory.dmp

    Filesize

    1.0MB

  • memory/2032-239-0x0000000000600000-0x000000000060C000-memory.dmp

    Filesize

    48KB

  • memory/2032-270-0x00000000003F0000-0x00000000003FA000-memory.dmp

    Filesize

    40KB

  • memory/2032-240-0x00000000005F0000-0x0000000000604000-memory.dmp

    Filesize

    80KB

  • memory/2032-241-0x0000000005C40000-0x0000000005C64000-memory.dmp

    Filesize

    144KB

  • memory/2032-261-0x00000000005C0000-0x00000000005CC000-memory.dmp

    Filesize

    48KB

  • memory/2032-256-0x0000000000590000-0x000000000059A000-memory.dmp

    Filesize

    40KB

  • memory/2032-245-0x0000000005C70000-0x0000000005C9A000-memory.dmp

    Filesize

    168KB

  • memory/2032-244-0x0000000000C90000-0x0000000000C9A000-memory.dmp

    Filesize

    40KB

  • memory/2032-247-0x00000000003D0000-0x00000000003DA000-memory.dmp

    Filesize

    40KB

  • memory/2032-251-0x000000001FA50000-0x000000001FD50000-memory.dmp

    Filesize

    3.0MB

  • memory/2032-255-0x00000000003F0000-0x00000000003FA000-memory.dmp

    Filesize

    40KB

  • memory/2032-254-0x00000000003F0000-0x00000000003FA000-memory.dmp

    Filesize

    40KB

  • memory/2032-257-0x000000001EC90000-0x000000001ECF2000-memory.dmp

    Filesize

    392KB

  • memory/2032-258-0x00000000005A0000-0x00000000005C2000-memory.dmp

    Filesize

    136KB

  • memory/2308-263-0x0000000072BA0000-0x0000000073C02000-memory.dmp

    Filesize

    16.4MB

  • memory/2308-265-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

    Filesize

    4KB

  • memory/2308-264-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

    Filesize

    4KB

  • memory/2308-269-0x0000000000400000-0x00000000004C6000-memory.dmp

    Filesize

    792KB

  • memory/2648-150-0x0000000000400000-0x0000000002B2D000-memory.dmp

    Filesize

    39.2MB

  • memory/2648-1-0x0000000000400000-0x0000000002B2D000-memory.dmp

    Filesize

    39.2MB

  • memory/2648-132-0x0000000000400000-0x0000000002B2D000-memory.dmp

    Filesize

    39.2MB

  • memory/2648-2-0x0000000000400000-0x0000000002B2D000-memory.dmp

    Filesize

    39.2MB

  • memory/2992-155-0x0000000000400000-0x0000000002574000-memory.dmp

    Filesize

    33.5MB

  • memory/2992-446-0x0000000000400000-0x0000000002574000-memory.dmp

    Filesize

    33.5MB

  • memory/2992-460-0x0000000000400000-0x0000000002574000-memory.dmp

    Filesize

    33.5MB

  • memory/2992-469-0x0000000000400000-0x0000000002574000-memory.dmp

    Filesize

    33.5MB

  • memory/2992-477-0x0000000000400000-0x0000000002574000-memory.dmp

    Filesize

    33.5MB