Analysis

  • max time kernel
    149s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    02-01-2022 18:51

General

  • Target

    306437A282F51A0C6ECD6E3EAAB2EF9FC376973DA40AE.exe

  • Size

    27KB

  • MD5

    03aaaf240a48f950913695178125016a

  • SHA1

    b7fe1523b02d05539f769f4beead332e5f0e18bc

  • SHA256

    306437a282f51a0c6ecd6e3eaab2ef9fc376973da40ae0972bee7ea3839d0909

  • SHA512

    6af11725e06efd01ca1429e567ca93d608436b165a23229eea623e25291967ce3f057af5c596974d86a5e0c55b38a27a0b121471f2b49cd25c543e77ce09460d

Malware Config

Extracted

Family

njrat

Version

v2.0

Botnet

HacKed

C2

zaki-botnet.portmap.host:5222

Mutex

Windows

Attributes
  • reg_key

    Windows

  • splitter

    |-F-|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

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

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

  • Suspicious use of AdjustPrivilegeToken 33 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • Views/modifies file attributes 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\306437A282F51A0C6ECD6E3EAAB2EF9FC376973DA40AE.exe
    "C:\Users\Admin\AppData\Local\Temp\306437A282F51A0C6ECD6E3EAAB2EF9FC376973DA40AE.exe"
    1⤵
    • Drops startup file
    • Loads dropped DLL
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:1796
    • C:\Users\Admin\AppData\Local\Temp\Payload.exe
      "C:\Users\Admin\AppData\Local\Temp\Payload.exe"
      2⤵
      • Executes dropped EXE
      • Drops startup file
      • Suspicious use of AdjustPrivilegeToken
      PID:872
    • C:\Windows\SysWOW64\attrib.exe
      attrib +h +r +s "C:\Users\Admin\AppData\Local\Temp\Payload.exe"
      2⤵
      • Views/modifies file attributes
      PID:1384

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\Payload.exe
    MD5

    03aaaf240a48f950913695178125016a

    SHA1

    b7fe1523b02d05539f769f4beead332e5f0e18bc

    SHA256

    306437a282f51a0c6ecd6e3eaab2ef9fc376973da40ae0972bee7ea3839d0909

    SHA512

    6af11725e06efd01ca1429e567ca93d608436b165a23229eea623e25291967ce3f057af5c596974d86a5e0c55b38a27a0b121471f2b49cd25c543e77ce09460d

  • C:\Users\Admin\AppData\Local\Temp\Payload.exe
    MD5

    03aaaf240a48f950913695178125016a

    SHA1

    b7fe1523b02d05539f769f4beead332e5f0e18bc

    SHA256

    306437a282f51a0c6ecd6e3eaab2ef9fc376973da40ae0972bee7ea3839d0909

    SHA512

    6af11725e06efd01ca1429e567ca93d608436b165a23229eea623e25291967ce3f057af5c596974d86a5e0c55b38a27a0b121471f2b49cd25c543e77ce09460d

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Windows.lnk
    MD5

    74e0513f71ef18aae509f7751f25f453

    SHA1

    aba9ff8944c79d81c9f38337722c89a733712b4b

    SHA256

    a46f531044be1b29ac6346aa39fd048b19e8c799de2484d9978ee79cc96c8e8b

    SHA512

    a8b47c292d7be35d560787c39978ad54ff7f7bd273a9db550b9795fc8a5666244397fa6e0f2888dcc4811550090acee479d0176e01965bea80598f10e971abd0

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\Windows.lnk
    MD5

    ce86a5f1ef5c036da720d8cba98512e7

    SHA1

    530e6d5ae5b1ec43fa9c337afa18f34c49681558

    SHA256

    2250c04d4c5b334c97fe69ba67021d1131e73746f96d9939745d7714472cce6d

    SHA512

    57b300c44f312c6d9e13c56e24ebdb89398458256af18e3a2aa090d84e2d922ad86e2980d5c91015ca7255749d6be3cc042fb41f76a75f383cdffc83528583e9

  • \Users\Admin\AppData\Local\Temp\Payload.exe
    MD5

    03aaaf240a48f950913695178125016a

    SHA1

    b7fe1523b02d05539f769f4beead332e5f0e18bc

    SHA256

    306437a282f51a0c6ecd6e3eaab2ef9fc376973da40ae0972bee7ea3839d0909

    SHA512

    6af11725e06efd01ca1429e567ca93d608436b165a23229eea623e25291967ce3f057af5c596974d86a5e0c55b38a27a0b121471f2b49cd25c543e77ce09460d

  • memory/872-57-0x0000000000000000-mapping.dmp
  • memory/872-64-0x0000000000420000-0x0000000000421000-memory.dmp
    Filesize

    4KB

  • memory/1384-61-0x0000000000000000-mapping.dmp
  • memory/1796-54-0x0000000076C61000-0x0000000076C63000-memory.dmp
    Filesize

    8KB

  • memory/1796-55-0x0000000002090000-0x0000000002091000-memory.dmp
    Filesize

    4KB