Analysis

  • max time kernel
    153s
  • max time network
    152s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    30-09-2021 12:36

General

  • Target

    c1545dbc06eb4bd3681801efd6a9c6a14f1312f1cf528f23d5b2a576fa148191.exe

  • Size

    126KB

  • MD5

    9ed1a098f59de1901780c6eb187aeac8

  • SHA1

    0cd5d65e05043b349066c431bacf84302d96cd51

  • SHA256

    c1545dbc06eb4bd3681801efd6a9c6a14f1312f1cf528f23d5b2a576fa148191

  • SHA512

    44280abf5e1bb9964f53c2efdf71806cfa0223939f69b6e1c10d8eccbcfaf111a412d70f8c0dc175f9f2b0e34eadafac5307554155f1e52d2eebec44716b4083

Malware Config

Extracted

Family

njrat

Version

v2.0

Botnet

@ WeSt - HaCkInG K.S.A @

C2

w187.ddns.net:22

Mutex

Intel HD Graphics Drivers for Windows(R)

Attributes
  • reg_key

    Intel HD Graphics Drivers for Windows(R)

  • splitter

    |-F-|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Executes dropped EXE 2 IoCs
  • Drops startup file 4 IoCs
  • Adds Run key to start application 2 TTPs 5 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of AdjustPrivilegeToken 34 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs
  • Views/modifies file attributes 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c1545dbc06eb4bd3681801efd6a9c6a14f1312f1cf528f23d5b2a576fa148191.exe
    "C:\Users\Admin\AppData\Local\Temp\c1545dbc06eb4bd3681801efd6a9c6a14f1312f1cf528f23d5b2a576fa148191.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:652
    • C:\Users\Admin\AppData\Local\Temp\Intel HD Graphics Drivers for Windows(R).exe
      "C:\Users\Admin\AppData\Local\Temp\Intel HD Graphics Drivers for Windows(R).exe"
      2⤵
      • Executes dropped EXE
      • Drops startup file
      • Adds Run key to start application
      • Suspicious use of WriteProcessMemory
      PID:884
      • C:\Users\Admin\AppData\Roaming\Intel HD Graphics Drivers for Windows(R).exe
        "C:\Users\Admin\AppData\Roaming\Intel HD Graphics Drivers for Windows(R).exe"
        3⤵
        • Executes dropped EXE
        • Drops startup file
        • Adds Run key to start application
        • Suspicious use of AdjustPrivilegeToken
        PID:1336
      • C:\Windows\SysWOW64\attrib.exe
        attrib +h +r +s "C:\Users\Admin\AppData\Roaming\Intel HD Graphics Drivers for Windows(R).exe"
        3⤵
        • Views/modifies file attributes
        PID:1476

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Hidden Files and Directories

1
T1158

Defense Evasion

Modify Registry

1
T1112

Hidden Files and Directories

1
T1158

Discovery

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\Intel HD Graphics Drivers for Windows(R).exe
    MD5

    f19f7b77300d578fe7f0304ee15bfae3

    SHA1

    89f17fcbf414876b65e555d8cf51ab8db4db132c

    SHA256

    7e9b32e715ed33aa05dbcf577876933ee43a0632ffcd95a50b23d612d82a88d1

    SHA512

    167c1c0e40105556068675f62fd06131864e7fa813d0575882c6d5ac60812ef42a348ee78d3fe11348fe1561e8beda72440030daaca1401b1ed314d70ffa128d

  • C:\Users\Admin\AppData\Local\Temp\Intel HD Graphics Drivers for Windows(R).exe
    MD5

    f19f7b77300d578fe7f0304ee15bfae3

    SHA1

    89f17fcbf414876b65e555d8cf51ab8db4db132c

    SHA256

    7e9b32e715ed33aa05dbcf577876933ee43a0632ffcd95a50b23d612d82a88d1

    SHA512

    167c1c0e40105556068675f62fd06131864e7fa813d0575882c6d5ac60812ef42a348ee78d3fe11348fe1561e8beda72440030daaca1401b1ed314d70ffa128d

  • C:\Users\Admin\AppData\Roaming\Intel HD Graphics Drivers for Windows(R).exe
    MD5

    f19f7b77300d578fe7f0304ee15bfae3

    SHA1

    89f17fcbf414876b65e555d8cf51ab8db4db132c

    SHA256

    7e9b32e715ed33aa05dbcf577876933ee43a0632ffcd95a50b23d612d82a88d1

    SHA512

    167c1c0e40105556068675f62fd06131864e7fa813d0575882c6d5ac60812ef42a348ee78d3fe11348fe1561e8beda72440030daaca1401b1ed314d70ffa128d

  • C:\Users\Admin\AppData\Roaming\Intel HD Graphics Drivers for Windows(R).exe
    MD5

    f19f7b77300d578fe7f0304ee15bfae3

    SHA1

    89f17fcbf414876b65e555d8cf51ab8db4db132c

    SHA256

    7e9b32e715ed33aa05dbcf577876933ee43a0632ffcd95a50b23d612d82a88d1

    SHA512

    167c1c0e40105556068675f62fd06131864e7fa813d0575882c6d5ac60812ef42a348ee78d3fe11348fe1561e8beda72440030daaca1401b1ed314d70ffa128d

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Intel HD Graphics Drivers for Windows(R).lnk
    MD5

    75d3ceb076c85ec307e587a7cef7b69e

    SHA1

    a3acf2cf7ee1f316cc91c25e76b09f364215538c

    SHA256

    695e75ecfe3a476da0a1dc0335a6dd46a3e8ecefbffbeaa2e738b3ec3f3613ae

    SHA512

    7747872fde5ace1a27c0169ea2e8fb6090e54eaeb84b2451b41e10ccfab66b7613b8fe6cac2d25b1c845136cc8fd9d714b65dd4b6e814e84c2ab3f3fd3babc80

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\Intel HD Graphics Drivers for Windows(R).lnk
    MD5

    252b37f9414f08a1e0a4b1936ee86215

    SHA1

    0297c7b4c3541ea2ec73de1a811ef5b79b26968f

    SHA256

    d60f697e7bcb8b6089ca2b274aa33a66a5543649c2558b2c0b2b0b41f2fc5975

    SHA512

    f42a369f284be941c22730bb1f75e7845540b335174b20260af90746ff11fbad4f6390946bf2fb98cce7f5f8ce7976c52c4eed15b867466add5ed4133d8c98d2

  • memory/652-118-0x0000000004DD0000-0x0000000004DD1000-memory.dmp
    Filesize

    4KB

  • memory/652-117-0x0000000004DE0000-0x0000000004DE1000-memory.dmp
    Filesize

    4KB

  • memory/652-116-0x00000000052E0000-0x00000000052E1000-memory.dmp
    Filesize

    4KB

  • memory/652-114-0x00000000003D0000-0x00000000003D1000-memory.dmp
    Filesize

    4KB

  • memory/884-119-0x0000000000000000-mapping.dmp
  • memory/884-122-0x0000000000C00000-0x0000000000D4A000-memory.dmp
    Filesize

    1.3MB

  • memory/1336-123-0x0000000000000000-mapping.dmp
  • memory/1336-129-0x00000000030E0000-0x00000000030E1000-memory.dmp
    Filesize

    4KB

  • memory/1476-126-0x0000000000000000-mapping.dmp