Analysis

  • max time kernel
    160s
  • max time network
    150s
  • platform
    windows10_x64
  • resource
    win10-en-20211208
  • submitted
    25-01-2022 22:00

General

  • Target

    c9bc2ade28395d0077523ecde62bf6ab.exe

  • Size

    670KB

  • MD5

    c9bc2ade28395d0077523ecde62bf6ab

  • SHA1

    aa815fa396dcc8549e5a1b39445b517c092acd72

  • SHA256

    6ab420972ed80355eeb88e3f08d4e9124141012b6a25e4f2ed6c19235da10d21

  • SHA512

    1aaca0dcc9974c14f2d724e3f507a86b4ccfe6b5932ceb9d0089774e32729f5ecb6e86f9742f803711f50aabf7e6f2d43c4ab2ce939abad2a553ac4699abac9e

Malware Config

Extracted

Family

njrat

Version

0.7.3

Botnet

24-ene

C2

googlemaintenanceservice.duckdns.org:7856

Mutex

Client.exe

Attributes
  • reg_key

    Client.exe

  • splitter

    ultimate

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Looks for VirtualBox Guest Additions in registry 2 TTPs
  • Looks for VMWare Tools registry key 2 TTPs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Maps connected drives based on registry 3 TTPs 2 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 25 IoCs
  • Suspicious use of AdjustPrivilegeToken 14 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c9bc2ade28395d0077523ecde62bf6ab.exe
    "C:\Users\Admin\AppData\Local\Temp\c9bc2ade28395d0077523ecde62bf6ab.exe"
    1⤵
    • Checks BIOS information in registry
    • Maps connected drives based on registry
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2700
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\c9bc2ade28395d0077523ecde62bf6ab.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1216
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\qnnHkykD.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3428
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\qnnHkykD" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1ECA.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2320
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:2124

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

    MD5

    1c19c16e21c97ed42d5beabc93391fc5

    SHA1

    8ad83f8e0b3acf8dfbbf87931e41f0d664c4df68

    SHA256

    1bcd97396c83babfe6c5068ba590d7a3f8b70e72955a9d1e4070648e404cbf05

    SHA512

    7d18776d8f649b3d29c182ff03efc6cea8b527542ee55304980f24577aae8b64e37044407776e220984346c3998ace5f8853afa58c8b38407482a728e9495e0c

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

    MD5

    bcef88cd6dacb65b3fb6fb42c341b135

    SHA1

    ad66d06afec397797c2ca525776fec3d5cd6c65e

    SHA256

    b848b76de7eb782b33ae1c4175ba15704bf5df6dd10ae84dc56f552fbfbaa05d

    SHA512

    ebfd7ed4fe93d44178f9fcaae9f47f9edff0d3ce6b643fa07232e17211f5c34c1efb184b7e6ce5754abe888225beda62d150f93486b8f5bee7b03905757a64a5

  • C:\Users\Admin\AppData\Local\Temp\tmp1ECA.tmp

    MD5

    a20e9d4805cdf592c93f819bc9c707b3

    SHA1

    4a75ee33097eb41a0671e917245ea318265c018e

    SHA256

    31a3809e03820495b5e3e3260e5a9f775c0415ced85f4a0afbd6af2e5f559f6a

    SHA512

    0086e3007d6e5e9cab191027ec8b4cefd99a1ff482b83521fa9464bc37ff70dfdef726a2ccfa9a79104bfa9633a7e3adeaf8b2eb2dc007211c31305a66623401

  • memory/1216-162-0x00000000098B0000-0x00000000098CE000-memory.dmp

    Filesize

    120KB

  • memory/1216-129-0x0000000004EF0000-0x0000000004F26000-memory.dmp

    Filesize

    216KB

  • memory/1216-174-0x0000000009DE0000-0x0000000009E74000-memory.dmp

    Filesize

    592KB

  • memory/1216-173-0x000000007E8C0000-0x000000007E8C1000-memory.dmp

    Filesize

    4KB

  • memory/1216-171-0x0000000009A10000-0x0000000009AB5000-memory.dmp

    Filesize

    660KB

  • memory/1216-141-0x0000000008600000-0x000000000861C000-memory.dmp

    Filesize

    112KB

  • memory/1216-143-0x0000000008A80000-0x0000000008AF6000-memory.dmp

    Filesize

    472KB

  • memory/1216-188-0x0000000007463000-0x0000000007464000-memory.dmp

    Filesize

    4KB

  • memory/1216-128-0x0000000007460000-0x0000000007461000-memory.dmp

    Filesize

    4KB

  • memory/1216-130-0x0000000007AA0000-0x00000000080C8000-memory.dmp

    Filesize

    6.2MB

  • memory/1216-131-0x0000000007960000-0x0000000007982000-memory.dmp

    Filesize

    136KB

  • memory/1216-134-0x0000000007A00000-0x0000000007A66000-memory.dmp

    Filesize

    408KB

  • memory/1216-561-0x0000000009CF0000-0x0000000009D0A000-memory.dmp

    Filesize

    104KB

  • memory/1216-136-0x0000000007462000-0x0000000007463000-memory.dmp

    Filesize

    4KB

  • memory/2124-157-0x00000000058C0000-0x0000000005DBE000-memory.dmp

    Filesize

    5.0MB

  • memory/2124-140-0x0000000000400000-0x000000000041A000-memory.dmp

    Filesize

    104KB

  • memory/2700-125-0x0000000001260000-0x00000000012C6000-memory.dmp

    Filesize

    408KB

  • memory/2700-120-0x0000000005430000-0x000000000543A000-memory.dmp

    Filesize

    40KB

  • memory/2700-117-0x0000000005790000-0x0000000005C8E000-memory.dmp

    Filesize

    5.0MB

  • memory/2700-118-0x0000000005380000-0x0000000005412000-memory.dmp

    Filesize

    584KB

  • memory/2700-119-0x0000000005290000-0x000000000578E000-memory.dmp

    Filesize

    5.0MB

  • memory/2700-116-0x0000000000AA0000-0x0000000000B4E000-memory.dmp

    Filesize

    696KB

  • memory/2700-121-0x0000000007890000-0x000000000792C000-memory.dmp

    Filesize

    624KB

  • memory/2700-124-0x0000000007C10000-0x0000000007C52000-memory.dmp

    Filesize

    264KB

  • memory/2700-123-0x000000007EC70000-0x000000007EC71000-memory.dmp

    Filesize

    4KB

  • memory/2700-122-0x0000000007940000-0x000000000794E000-memory.dmp

    Filesize

    56KB

  • memory/3428-172-0x000000007E830000-0x000000007E831000-memory.dmp

    Filesize

    4KB

  • memory/3428-161-0x0000000009730000-0x0000000009763000-memory.dmp

    Filesize

    204KB

  • memory/3428-186-0x0000000007023000-0x0000000007024000-memory.dmp

    Filesize

    4KB

  • memory/3428-139-0x0000000008050000-0x00000000083A0000-memory.dmp

    Filesize

    3.3MB

  • memory/3428-137-0x0000000007020000-0x0000000007021000-memory.dmp

    Filesize

    4KB

  • memory/3428-570-0x0000000009940000-0x0000000009948000-memory.dmp

    Filesize

    32KB

  • memory/3428-142-0x00000000083A0000-0x00000000083EB000-memory.dmp

    Filesize

    300KB

  • memory/3428-138-0x0000000007022000-0x0000000007023000-memory.dmp

    Filesize

    4KB