Analysis

  • max time kernel
    146s
  • max time network
    152s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240412-en
  • resource tags

    arch:x64arch:x86image:win11-20240412-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    26-04-2024 10:01

General

  • Target

    97fd362b21f311a03153e66e7989be9885c12a2ddbba545374ab29f107da0348.exe

  • Size

    442KB

  • MD5

    beedcbf1517777de0f5857563968b8c3

  • SHA1

    bf43e0a1ced5e3627fedd7569d9fe9ad33dc1ad1

  • SHA256

    97fd362b21f311a03153e66e7989be9885c12a2ddbba545374ab29f107da0348

  • SHA512

    f6328ece04dd16fe1f0e88c03ca26fa11421194162aeedac09e3014fdf14c132b695d2b0e0265137bc8067946594975619a504672911ca8c84fef9776d165aff

  • SSDEEP

    12288:8/YF+b8a+KLGNAKq48yhBV2S7PJwwh8na5rI:8Qw+1NE48yRZxwNna5rI

Malware Config

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
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 1 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious behavior: MapViewOfSection 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\97fd362b21f311a03153e66e7989be9885c12a2ddbba545374ab29f107da0348.exe
    "C:\Users\Admin\AppData\Local\Temp\97fd362b21f311a03153e66e7989be9885c12a2ddbba545374ab29f107da0348.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1428
    • C:\Users\Admin\AppData\Local\Temp\u13o.0.exe
      "C:\Users\Admin\AppData\Local\Temp\u13o.0.exe"
      2⤵
      • Executes dropped EXE
      PID:3064
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3064 -s 1240
        3⤵
        • Program crash
        PID:2384
    • C:\Users\Admin\AppData\Local\Temp\u13o.2\run.exe
      "C:\Users\Admin\AppData\Local\Temp\u13o.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:4804
      • 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:1972
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
          C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
          4⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:72
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 3064 -ip 3064
    1⤵
      PID:2592

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\348cb185

      Filesize

      1.4MB

      MD5

      cb0db63045e5fa68f66e354a9cfa0020

      SHA1

      b6d50927f3ce9653638cde02a21ee83a039a8bea

      SHA256

      f1fda69e59406d5634a74034299fcc7ae65354626242d8718b0731c841de0edd

      SHA512

      c338b64de229de18d9daff1ae7c269f7cd730abe50811015eb2b357745cabbe6b62d28be2501f00868266627cf58118a1a3fbe2558d3d49bc559f5546241a9e6

    • C:\Users\Admin\AppData\Local\Temp\u13o.0.exe

      Filesize

      297KB

      MD5

      dc755a443b61deee2ea99e5f2360c414

      SHA1

      da5191cb200df63daa33a1c7632cd598ca09871a

      SHA256

      6a0a065c983fe5d0a5e3dcbee89a51dc92baf859e4a1c8dbd606569b317a7a75

      SHA512

      895b6c943e2ade9c7963db97395e3840b599328e4dcaf4d3e7cd453a65c7677cb4ba43e9289f50547afbe27d282fd2d6193f0aeeb39017c1b922569c75d2fe28

    • C:\Users\Admin\AppData\Local\Temp\u13o.1.zip

      Filesize

      3.7MB

      MD5

      78d3ca6355c93c72b494bb6a498bf639

      SHA1

      2fa4e5df74bfe75c207c881a1b0d3bc1c62c8b0e

      SHA256

      a1dd547a63b256aa6a16871ed03f8b025226f7617e67b8817a08444df077b001

      SHA512

      1b2df7bee2514aee7efd3579f5dd33c76b40606d07dba69a34c45747662fad61174db4931bca02b058830107959205e889fee74f8ccc9f6e03f9fd111761f4ea

    • C:\Users\Admin\AppData\Local\Temp\u13o.2\UIxMarketPlugin.dll

      Filesize

      1.6MB

      MD5

      d1ba9412e78bfc98074c5d724a1a87d6

      SHA1

      0572f98d78fb0b366b5a086c2a74cc68b771d368

      SHA256

      cbcea8f28d8916219d1e8b0a8ca2db17e338eb812431bc4ad0cb36c06fd67f15

      SHA512

      8765de36d3824b12c0a4478c31b985878d4811bd0e5b6fba4ea07f8c76340bd66a2da3490d4871b95d9a12f96efc25507dfd87f431de211664dbe9a9c914af6f

    • C:\Users\Admin\AppData\Local\Temp\u13o.2\bunch.dat

      Filesize

      1.3MB

      MD5

      1e8237d3028ab52821d69099e0954f97

      SHA1

      30a6ae353adda0c471c6ed5b7a2458b07185abf2

      SHA256

      9387488f9d338e211be2cb45109bf590a5070180bc0d4a703f70d3cb3c4e1742

      SHA512

      a6406d7c18694ee014d59df581f1f76e980b68e3361ae680dc979606a423eba48d35e37f143154dd97fe5f066baf0ea51a2e9f8bc822d593e1cba70ead6559f3

    • C:\Users\Admin\AppData\Local\Temp\u13o.2\relay.dll

      Filesize

      1.5MB

      MD5

      10d51becd0bbce0fab147ff9658c565e

      SHA1

      4689a18112ff876d3c066bc8c14a08fd6b7b7a4a

      SHA256

      7b2db9c88f60ed6dd24b1dec321a304564780fdb191a96ec35c051856128f1ed

      SHA512

      29faf493bb28f7842c905adc5312f31741effb09f841059b53d73b22aea2c4d41d73db10bbf37703d6aeb936ffacbc756a3cc85ba3c0b6a6863ef4d27fefcd29

    • C:\Users\Admin\AppData\Local\Temp\u13o.2\run.exe

      Filesize

      2.4MB

      MD5

      9fb4770ced09aae3b437c1c6eb6d7334

      SHA1

      fe54b31b0db8665aa5b22bed147e8295afc88a03

      SHA256

      a05b592a971fe5011554013bcfe9a4aaf9cfc633bdd1fe3a8197f213d557b8d3

      SHA512

      140fee6daf23fe8b7e441b3b4de83554af804f00ecedc421907a385ac79a63164bd9f28b4be061c2ea2262755d85e14d3a8e7dc910547837b664d78d93667256

    • C:\Users\Admin\AppData\Local\Temp\u13o.2\whale.dbf

      Filesize

      85KB

      MD5

      a723bf46048e0bfb15b8d77d7a648c3e

      SHA1

      8952d3c34e9341e4425571e10f22b782695bb915

      SHA256

      b440170853bdb43b66497f701aee2901080326975140b095a1669cb9dee13422

      SHA512

      ca8ea2f7f3c7af21b5673a0a3f2611b6580a7ed02efa2cfd8b343eb644ff09682bde43b25ef7aab68530d5ce31dcbd252c382dd336ecb610d4c4ebde78347273

    • memory/72-140-0x0000000005A10000-0x0000000005A60000-memory.dmp

      Filesize

      320KB

    • memory/72-135-0x0000000005950000-0x00000000059E2000-memory.dmp

      Filesize

      584KB

    • memory/72-136-0x0000000005FA0000-0x0000000006546000-memory.dmp

      Filesize

      5.6MB

    • memory/72-137-0x0000000005BC0000-0x0000000005D82000-memory.dmp

      Filesize

      1.8MB

    • memory/72-138-0x0000000005A70000-0x0000000005AE6000-memory.dmp

      Filesize

      472KB

    • memory/72-139-0x00000000058E0000-0x00000000058F0000-memory.dmp

      Filesize

      64KB

    • memory/72-143-0x0000000073090000-0x0000000073841000-memory.dmp

      Filesize

      7.7MB

    • memory/72-133-0x0000000073090000-0x0000000073841000-memory.dmp

      Filesize

      7.7MB

    • memory/72-132-0x0000000001300000-0x00000000013C6000-memory.dmp

      Filesize

      792KB

    • memory/72-144-0x00000000058E0000-0x00000000058F0000-memory.dmp

      Filesize

      64KB

    • memory/72-129-0x00000000714C0000-0x00000000727D7000-memory.dmp

      Filesize

      19.1MB

    • memory/1428-19-0x0000000000400000-0x000000000405F000-memory.dmp

      Filesize

      60.4MB

    • memory/1428-14-0x0000000004250000-0x0000000004350000-memory.dmp

      Filesize

      1024KB

    • memory/1428-116-0x0000000000400000-0x000000000405F000-memory.dmp

      Filesize

      60.4MB

    • memory/1428-2-0x0000000005DC0000-0x0000000005E2D000-memory.dmp

      Filesize

      436KB

    • memory/1428-3-0x0000000000400000-0x000000000405F000-memory.dmp

      Filesize

      60.4MB

    • memory/1428-15-0x0000000005DC0000-0x0000000005E2D000-memory.dmp

      Filesize

      436KB

    • memory/1428-1-0x0000000004250000-0x0000000004350000-memory.dmp

      Filesize

      1024KB

    • memory/1972-119-0x0000000072AA0000-0x0000000072C1D000-memory.dmp

      Filesize

      1.5MB

    • memory/1972-121-0x00007FFF35DE0000-0x00007FFF35FE9000-memory.dmp

      Filesize

      2.0MB

    • memory/1972-125-0x0000000072AA0000-0x0000000072C1D000-memory.dmp

      Filesize

      1.5MB

    • memory/1972-126-0x0000000072AA0000-0x0000000072C1D000-memory.dmp

      Filesize

      1.5MB

    • memory/1972-128-0x0000000072AA0000-0x0000000072C1D000-memory.dmp

      Filesize

      1.5MB

    • memory/3064-17-0x0000000005C30000-0x0000000005C57000-memory.dmp

      Filesize

      156KB

    • memory/3064-16-0x0000000004390000-0x0000000004490000-memory.dmp

      Filesize

      1024KB

    • memory/3064-18-0x0000000000400000-0x000000000403B000-memory.dmp

      Filesize

      60.2MB

    • memory/4804-117-0x0000000072AA0000-0x0000000072C1D000-memory.dmp

      Filesize

      1.5MB

    • memory/4804-108-0x0000000072AA0000-0x0000000072C1D000-memory.dmp

      Filesize

      1.5MB

    • memory/4804-109-0x00007FFF35DE0000-0x00007FFF35FE9000-memory.dmp

      Filesize

      2.0MB

    • memory/4804-115-0x0000000072AA0000-0x0000000072C1D000-memory.dmp

      Filesize

      1.5MB