Analysis

  • max time kernel
    148s
  • max time network
    156s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    20-04-2024 19:31

General

  • Target

    2784277bd68152abf75c6c6d59fab7af.exe

  • Size

    2.3MB

  • MD5

    2784277bd68152abf75c6c6d59fab7af

  • SHA1

    e1d047c97e3bdfe273b215b42eccde32ca2ca63f

  • SHA256

    737bba8d3e9ad3e1526bf5949962af3b37107c80c767c473a820999eae507fbc

  • SHA512

    e05b8251c9f6c59c7901d72c58f5b8c35dc376068368e67f81ee79da4287ddfc25c6ca5893d87944ed21c592bdd62f57d40a9f78c9af56762f33b010dd10b62c

  • SSDEEP

    49152:T2Q8G4mSmM8sik/AJ+/GRfzlW+oCZBNKoiYNsVjGMFWm02qG6zSo2:T2VmT8B4JAGllW+DBNdtN811

Malware Config

Extracted

Family

umbral

C2

https://discord.com/api/webhooks/1225910337656590376/EwVP3wlMQgDXxoBxwLhaflFWF2WGja-17Tz3uwtoNirVyl9iU_nVCUsOrUJN46JTk-_-

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

C2

hakim32.ddns.net:2000

0.tcp.eu.ngrok.io:19177

Mutex

62b7d4736043995d94b02f8790cef504

Attributes
  • reg_key

    62b7d4736043995d94b02f8790cef504

  • splitter

    |'|'|

Signatures

  • AgentTesla

    Agent Tesla is a remote access tool (RAT) written in visual basic.

  • Detect Umbral payload 2 IoCs
  • Umbral

    Umbral stealer is an opensource moduler stealer written in C#.

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • AgentTesla payload 1 IoCs
  • Modifies Windows Firewall 2 TTPs 3 IoCs
  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 1 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies system certificate store 2 TTPs 4 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 25 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2784277bd68152abf75c6c6d59fab7af.exe
    "C:\Users\Admin\AppData\Local\Temp\2784277bd68152abf75c6c6d59fab7af.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1440
    • C:\Users\Admin\AppData\Local\Temp\Umbral.exe
      "C:\Users\Admin\AppData\Local\Temp\Umbral.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2744
      • C:\Windows\System32\Wbem\wmic.exe
        "wmic.exe" csproduct get uuid
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:992
    • C:\Users\Admin\AppData\Local\Temp\svchost.exe
      "C:\Users\Admin\AppData\Local\Temp\svchost.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2940
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\svchost.exe" "svchost.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        PID:1072
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall delete allowedprogram "C:\Users\Admin\AppData\Local\Temp\svchost.exe"
        3⤵
        • Modifies Windows Firewall
        PID:808
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\svchost.exe" "svchost.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        PID:852
    • C:\Users\Admin\AppData\Local\Temp\ANDYzz-protected.exe
      "C:\Users\Admin\AppData\Local\Temp\ANDYzz-protected.exe"
      2⤵
      • Executes dropped EXE
      • Enumerates system info in registry
      • Modifies system certificate store
      • Suspicious use of AdjustPrivilegeToken
      PID:2640

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015

    Filesize

    68KB

    MD5

    29f65ba8e88c063813cc50a4ea544e93

    SHA1

    05a7040d5c127e68c25d81cc51271ffb8bef3568

    SHA256

    1ed81fa8dfb6999a9fedc6e779138ffd99568992e22d300acd181a6d2c8de184

    SHA512

    e29b2e92c496245bed3372578074407e8ef8882906ce10c35b3c8deebfefe01b5fd7f3030acaa693e175f4b7aca6cd7d8d10ae1c731b09c5fa19035e005de3aa

  • C:\Users\Admin\AppData\Local\Temp\ANDYzz-protected.exe

    Filesize

    2.5MB

    MD5

    33eb68c8c4fc521d64ed82219cdb19f2

    SHA1

    2d114152924ea141df11082d6f337bf7e9a81035

    SHA256

    24251c6105a1f345dbb16860c2405647127b8b03e03b0d0c1c61f896a6c7b7b0

    SHA512

    0b5090dbb977ac8b79b01a3d33c26592a7b98bd9461212f70fa3c092b359c93ad22c1c4bace3aacc22c74884b154989be2a724edf74efd20ef80dee78ac75f8a

  • C:\Users\Admin\AppData\Local\Temp\CabBE42.tmp

    Filesize

    65KB

    MD5

    ac05d27423a85adc1622c714f2cb6184

    SHA1

    b0fe2b1abddb97837ea0195be70ab2ff14d43198

    SHA256

    c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

    SHA512

    6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

  • C:\Users\Admin\AppData\Local\Temp\TarC01D.tmp

    Filesize

    177KB

    MD5

    435a9ac180383f9fa094131b173a2f7b

    SHA1

    76944ea657a9db94f9a4bef38f88c46ed4166983

    SHA256

    67dc37ed50b8e63272b49a254a6039ee225974f1d767bb83eb1fd80e759a7c34

    SHA512

    1a6b277611959720a9c71114957620517ad94541302f164eb872bd322292a952409bafb8bc2ac793b16ad5f25d83f8594ccff2b7834e3c2b2b941e6fc84c009a

  • C:\Users\Admin\AppData\Local\Temp\Umbral.exe

    Filesize

    231KB

    MD5

    774fa31e76af56bbad395e1e3ac68721

    SHA1

    fe65c14179b2cf0cbd44758578cf878d7dcef879

    SHA256

    944c19f992f5301ac8936dcdbd4efb59fbc4f47dcdcc39a77b5e87b4effd27f4

    SHA512

    529ba2a356bf4fb3d4820c0da1dca58d1583ae37188e61300190d543144140f0f73072a9faf195dc214a13ac8c365354e2ab212a24646a332085481f47de8c7e

  • C:\Users\Admin\AppData\Local\Temp\svchost.exe

    Filesize

    93KB

    MD5

    3071f4f7b11a6bf6c623e83eed6d2418

    SHA1

    37fd78d1296659109f2c94c9c750b5a98d158f11

    SHA256

    508bcd1a6b7ed82e60873eb1b035647ec9f8f9facdf65d6d6a73b8ef37d5bb9e

    SHA512

    e6bc32a3c955f80a9a54c261722f49032c1f32c50f98f0792af85769b87b4e9ef16ee4fd4f1e9e0a991e6f9311d54db99737401e6b5f32b503531e6859ad45b8

  • memory/1440-24-0x000007FEF51F0000-0x000007FEF5BDC000-memory.dmp

    Filesize

    9.9MB

  • memory/1440-0-0x0000000001290000-0x00000000014EA000-memory.dmp

    Filesize

    2.4MB

  • memory/1440-2-0x000000001AF20000-0x000000001AFA0000-memory.dmp

    Filesize

    512KB

  • memory/1440-1-0x000007FEF51F0000-0x000007FEF5BDC000-memory.dmp

    Filesize

    9.9MB

  • memory/2640-128-0x000000001BDA0000-0x000000001BE20000-memory.dmp

    Filesize

    512KB

  • memory/2640-131-0x000000001BDA0000-0x000000001BE20000-memory.dmp

    Filesize

    512KB

  • memory/2640-25-0x00000000012C0000-0x000000000153E000-memory.dmp

    Filesize

    2.5MB

  • memory/2640-26-0x000007FEF51F0000-0x000007FEF5BDC000-memory.dmp

    Filesize

    9.9MB

  • memory/2640-125-0x000007FEF51F0000-0x000007FEF5BDC000-memory.dmp

    Filesize

    9.9MB

  • memory/2640-29-0x000000001BDA0000-0x000000001BE20000-memory.dmp

    Filesize

    512KB

  • memory/2640-31-0x000000001C5E0000-0x000000001C7F4000-memory.dmp

    Filesize

    2.1MB

  • memory/2640-34-0x000000001BDA0000-0x000000001BE20000-memory.dmp

    Filesize

    512KB

  • memory/2744-124-0x000007FEF51F0000-0x000007FEF5BDC000-memory.dmp

    Filesize

    9.9MB

  • memory/2744-32-0x000000001B430000-0x000000001B4B0000-memory.dmp

    Filesize

    512KB

  • memory/2744-19-0x000007FEF51F0000-0x000007FEF5BDC000-memory.dmp

    Filesize

    9.9MB

  • memory/2744-130-0x000000001B430000-0x000000001B4B0000-memory.dmp

    Filesize

    512KB

  • memory/2744-14-0x0000000000F50000-0x0000000000F90000-memory.dmp

    Filesize

    256KB

  • memory/2744-132-0x000007FEF51F0000-0x000007FEF5BDC000-memory.dmp

    Filesize

    9.9MB

  • memory/2940-30-0x0000000001FF0000-0x0000000002030000-memory.dmp

    Filesize

    256KB

  • memory/2940-28-0x0000000074190000-0x000000007473B000-memory.dmp

    Filesize

    5.7MB

  • memory/2940-27-0x0000000074190000-0x000000007473B000-memory.dmp

    Filesize

    5.7MB

  • memory/2940-126-0x0000000074190000-0x000000007473B000-memory.dmp

    Filesize

    5.7MB

  • memory/2940-127-0x0000000074190000-0x000000007473B000-memory.dmp

    Filesize

    5.7MB

  • memory/2940-129-0x0000000001FF0000-0x0000000002030000-memory.dmp

    Filesize

    256KB