Analysis

  • max time kernel
    297s
  • max time network
    303s
  • platform
    windows10-1703_x64
  • resource
    win10-20231023-en
  • resource tags

    arch:x64arch:x86image:win10-20231023-enlocale:en-usos:windows10-1703-x64system
  • submitted
    26-11-2023 22:31

General

  • Target

    a2e1b415d5540ba0a4646af0ce2396031f55653710e8c37706f32b2f77edecbf.exe

  • Size

    4.6MB

  • MD5

    12c12a8a5c9cb98f98f5e378d56a6141

  • SHA1

    827296ef761e92ad2f117c9e92aafd1509ea1c02

  • SHA256

    a2e1b415d5540ba0a4646af0ce2396031f55653710e8c37706f32b2f77edecbf

  • SHA512

    1e7b4ea81858bd52718283f62812ae6dc8108db482c0fd4540b1dbdb8840bb2620ab9e07f06d64ac322d9b6ad31e285d0c466076387c204f2ec8fb9638d82df7

  • SSDEEP

    49152:5SpYISwcy5m+HlVHd2lXCYE5unMItqEktIKQnRGjmRZlFC2LJfZL7RIFJ1XfJGOB:I7QtTyszkXX14WZB7AhkoeXL

Malware Config

Signatures

  • Detects Arechclient2 RAT 1 IoCs

    Arechclient2.

  • SectopRAT

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

  • SectopRAT payload 1 IoCs
  • Drops startup file 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • 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 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a2e1b415d5540ba0a4646af0ce2396031f55653710e8c37706f32b2f77edecbf.exe
    "C:\Users\Admin\AppData\Local\Temp\a2e1b415d5540ba0a4646af0ce2396031f55653710e8c37706f32b2f77edecbf.exe"
    1⤵
    • Drops startup file
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2212
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:2512

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp2CBA.tmp

    Filesize

    20KB

    MD5

    c9ff7748d8fcef4cf84a5501e996a641

    SHA1

    02867e5010f62f97ebb0cfb32cb3ede9449fe0c9

    SHA256

    4d3f3194cb1133437aa69bb880c8cbb55ddf06ff61a88ca6c3f1bbfbfd35d988

    SHA512

    d36054499869a8f56ac8547ccd5455f1252c24e17d2b185955390b32da7e2a732ace4e0f30f9493fcc61425a2e31ed623465f998f41af69423ee0e3ed1483a73

  • \Users\Admin\AppData\Local\Temp\Protect544cd51a.dll

    Filesize

    742KB

    MD5

    544cd51a596619b78e9b54b70088307d

    SHA1

    4769ddd2dbc1dc44b758964ed0bd231b85880b65

    SHA256

    dfce2d4d06de6452998b3c5b2dc33eaa6db2bd37810d04e3d02dc931887cfddd

    SHA512

    f56d8b81022bb132d40aa78596da39b5c212d13b84b5c7d2c576bbf403924f1d22e750de3b09d1be30aea359f1b72c5043b19685fc9bf06d8040bfee16b17719

  • memory/2212-18-0x0000000006660000-0x0000000006760000-memory.dmp

    Filesize

    1024KB

  • memory/2212-6-0x0000000005410000-0x000000000541A000-memory.dmp

    Filesize

    40KB

  • memory/2212-46-0x00000000740A0000-0x000000007478E000-memory.dmp

    Filesize

    6.9MB

  • memory/2212-5-0x0000000005CC0000-0x0000000005CD0000-memory.dmp

    Filesize

    64KB

  • memory/2212-21-0x00000000740A0000-0x000000007478E000-memory.dmp

    Filesize

    6.9MB

  • memory/2212-7-0x0000000005E60000-0x0000000005FF2000-memory.dmp

    Filesize

    1.6MB

  • memory/2212-2-0x0000000005650000-0x0000000005B4E000-memory.dmp

    Filesize

    5.0MB

  • memory/2212-14-0x0000000005CC0000-0x0000000005CD0000-memory.dmp

    Filesize

    64KB

  • memory/2212-13-0x0000000006490000-0x00000000064A0000-memory.dmp

    Filesize

    64KB

  • memory/2212-15-0x0000000005CC0000-0x0000000005CD0000-memory.dmp

    Filesize

    64KB

  • memory/2212-17-0x0000000005CC0000-0x0000000005CD0000-memory.dmp

    Filesize

    64KB

  • memory/2212-22-0x0000000006660000-0x0000000006760000-memory.dmp

    Filesize

    1024KB

  • memory/2212-1-0x00000000740A0000-0x000000007478E000-memory.dmp

    Filesize

    6.9MB

  • memory/2212-19-0x0000000005CC0000-0x0000000005CD0000-memory.dmp

    Filesize

    64KB

  • memory/2212-4-0x0000000005470000-0x000000000550C000-memory.dmp

    Filesize

    624KB

  • memory/2212-3-0x0000000005230000-0x00000000052C2000-memory.dmp

    Filesize

    584KB

  • memory/2212-16-0x0000000005CC0000-0x0000000005CD0000-memory.dmp

    Filesize

    64KB

  • memory/2212-23-0x0000000006660000-0x0000000006760000-memory.dmp

    Filesize

    1024KB

  • memory/2212-0-0x0000000000540000-0x00000000009D4000-memory.dmp

    Filesize

    4.6MB

  • memory/2212-31-0x0000000005CC0000-0x0000000005CD0000-memory.dmp

    Filesize

    64KB

  • memory/2512-26-0x0000000005320000-0x0000000005396000-memory.dmp

    Filesize

    472KB

  • memory/2512-27-0x0000000006590000-0x0000000006ABC000-memory.dmp

    Filesize

    5.2MB

  • memory/2512-28-0x0000000005990000-0x00000000059AE000-memory.dmp

    Filesize

    120KB

  • memory/2512-29-0x0000000005A90000-0x0000000005AE0000-memory.dmp

    Filesize

    320KB

  • memory/2512-30-0x0000000006060000-0x00000000060C6000-memory.dmp

    Filesize

    408KB

  • memory/2512-25-0x0000000005490000-0x0000000005652000-memory.dmp

    Filesize

    1.8MB

  • memory/2512-24-0x00000000740A0000-0x000000007478E000-memory.dmp

    Filesize

    6.9MB

  • memory/2512-20-0x0000000000400000-0x00000000004D2000-memory.dmp

    Filesize

    840KB

  • memory/2512-47-0x00000000740A0000-0x000000007478E000-memory.dmp

    Filesize

    6.9MB