Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    21-04-2024 08:44

General

  • Target

    737bba8d3e9ad3e1526bf5949962af3b37107c80c767c473a820999eae507fbc.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 2 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 9 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\737bba8d3e9ad3e1526bf5949962af3b37107c80c767c473a820999eae507fbc.exe
    "C:\Users\Admin\AppData\Local\Temp\737bba8d3e9ad3e1526bf5949962af3b37107c80c767c473a820999eae507fbc.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2340
    • C:\Users\Admin\AppData\Local\Temp\Umbral.exe
      "C:\Users\Admin\AppData\Local\Temp\Umbral.exe"
      2⤵
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2176
      • C:\Windows\System32\Wbem\wmic.exe
        "wmic.exe" csproduct get uuid
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:2576
    • 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:2328
      • 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:2668
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall delete allowedprogram "C:\Users\Admin\AppData\Local\Temp\svchost.exe"
        3⤵
        • Modifies Windows Firewall
        PID:1820
      • 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:2748
    • 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:2008

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    68KB

    MD5

    29f65ba8e88c063813cc50a4ea544e93

    SHA1

    05a7040d5c127e68c25d81cc51271ffb8bef3568

    SHA256

    1ed81fa8dfb6999a9fedc6e779138ffd99568992e22d300acd181a6d2c8de184

    SHA512

    e29b2e92c496245bed3372578074407e8ef8882906ce10c35b3c8deebfefe01b5fd7f3030acaa693e175f4b7aca6cd7d8d10ae1c731b09c5fa19035e005de3aa

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\F0ACCF77CDCBFF39F6191887F6D2D357

    Filesize

    1KB

    MD5

    a266bb7dcc38a562631361bbf61dd11b

    SHA1

    3b1efd3a66ea28b16697394703a72ca340a05bd5

    SHA256

    df545bf919a2439c36983b54cdfc903dfa4f37d3996d8d84b4c31eec6f3c163e

    SHA512

    0da8ef4f8f6ed3d16d2bc8eb816b9e6e1345dfe2d91160196c47e6149a1d6aedaafadcefd66acdea7f72dcf0832770192ceac15b0c559c4ccc2c0e5581d5aefc

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

    Filesize

    344B

    MD5

    91bec3c030b67941292cd14b4665e6c6

    SHA1

    6adb3bf97f56e3f0e1c7df1d614c47a16d7a5dcc

    SHA256

    639da3bf9fce295eec0f782626684f83bdadefcbb2caf33ff4360a9fa71d6ab2

    SHA512

    e16230153579669f1149bcadfc80b35fe9f10cad30ca468f2ca272eb08d54e409cfbfb4a52424812208ed0826dc5144bcd1c5f3a3395e7d65a4f93ddd2148f99

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

    Filesize

    344B

    MD5

    7fb067fcdaeda87f849617e302123bd1

    SHA1

    da8418e1b1b41309ed70b0b8bfc7a4ecdeba345e

    SHA256

    8ffbd30f561f145643482f358889a6879fbcaaae38fbcab2313d2fe9d01b9359

    SHA512

    1e1223b35d30be3f66c234676c64d34003b6f7f6f7a2f0c6c6559f6e16e441d66edba1fb861b5f6fc2c5b44f323548fe55d0bfca575e3cbd3a13486b56abdb66

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\F0ACCF77CDCBFF39F6191887F6D2D357

    Filesize

    242B

    MD5

    aef7d33ce61efe701abd642a08a74125

    SHA1

    75c094b9bd59aeb6b7da40bf33ea7211f2ad4dcd

    SHA256

    2c31a9c76790661bda0658406ca75be359c44a7ce5efd1d1e5ab0af616a869e9

    SHA512

    bab7e49658367a8b3d61d00d2441ac19eabffb0b1e09d5632c2f9cf11bda673efa4942d7fb6859a90e92e4052ba60f82f6c81979d0749edaa805e5bb3ce372c1

  • C:\Users\Admin\AppData\Local\Temp\Tar6DB4.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

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

    Filesize

    2.5MB

    MD5

    33eb68c8c4fc521d64ed82219cdb19f2

    SHA1

    2d114152924ea141df11082d6f337bf7e9a81035

    SHA256

    24251c6105a1f345dbb16860c2405647127b8b03e03b0d0c1c61f896a6c7b7b0

    SHA512

    0b5090dbb977ac8b79b01a3d33c26592a7b98bd9461212f70fa3c092b359c93ad22c1c4bace3aacc22c74884b154989be2a724edf74efd20ef80dee78ac75f8a

  • memory/2008-92-0x000000001B7D0000-0x000000001B850000-memory.dmp

    Filesize

    512KB

  • memory/2008-50-0x000007FEF5B80000-0x000007FEF656C000-memory.dmp

    Filesize

    9.9MB

  • memory/2008-25-0x000007FEF5B80000-0x000007FEF656C000-memory.dmp

    Filesize

    9.9MB

  • memory/2008-215-0x000000001B7D0000-0x000000001B850000-memory.dmp

    Filesize

    512KB

  • memory/2008-28-0x000000001C6B0000-0x000000001C8C4000-memory.dmp

    Filesize

    2.1MB

  • memory/2008-30-0x000000001B7D0000-0x000000001B850000-memory.dmp

    Filesize

    512KB

  • memory/2008-26-0x00000000008E0000-0x0000000000B5E000-memory.dmp

    Filesize

    2.5MB

  • memory/2008-34-0x000000001B7D0000-0x000000001B850000-memory.dmp

    Filesize

    512KB

  • memory/2176-32-0x0000000001080000-0x0000000001100000-memory.dmp

    Filesize

    512KB

  • memory/2176-39-0x000007FEF5B80000-0x000007FEF656C000-memory.dmp

    Filesize

    9.9MB

  • memory/2176-16-0x000007FEF5B80000-0x000007FEF656C000-memory.dmp

    Filesize

    9.9MB

  • memory/2176-212-0x0000000001080000-0x0000000001100000-memory.dmp

    Filesize

    512KB

  • memory/2176-11-0x0000000001150000-0x0000000001190000-memory.dmp

    Filesize

    256KB

  • memory/2176-216-0x000007FEF5B80000-0x000007FEF656C000-memory.dmp

    Filesize

    9.9MB

  • memory/2328-31-0x0000000000590000-0x00000000005D0000-memory.dmp

    Filesize

    256KB

  • memory/2328-211-0x0000000000590000-0x00000000005D0000-memory.dmp

    Filesize

    256KB

  • memory/2328-51-0x0000000074B90000-0x000000007513B000-memory.dmp

    Filesize

    5.7MB

  • memory/2328-29-0x0000000074B90000-0x000000007513B000-memory.dmp

    Filesize

    5.7MB

  • memory/2328-27-0x0000000074B90000-0x000000007513B000-memory.dmp

    Filesize

    5.7MB

  • memory/2340-0-0x0000000000FC0000-0x000000000121A000-memory.dmp

    Filesize

    2.4MB

  • memory/2340-24-0x000007FEF5B80000-0x000007FEF656C000-memory.dmp

    Filesize

    9.9MB

  • memory/2340-2-0x000000001B400000-0x000000001B480000-memory.dmp

    Filesize

    512KB

  • memory/2340-1-0x000007FEF5B80000-0x000007FEF656C000-memory.dmp

    Filesize

    9.9MB