Analysis

  • max time kernel
    150s
  • max time network
    185s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    16-09-2021 18:02

General

  • Target

    DBD5E126CAD149E95614507E63A255F2B26B9A4E539B7.exe

  • Size

    91KB

  • MD5

    6b5bc3eba86c9efbdf993773af3f593e

  • SHA1

    0fd0f10d34c28a928e69343caeeed7803646be8f

  • SHA256

    dbd5e126cad149e95614507e63a255f2b26b9a4e539b7bcd25e7d8a1e2bd6e07

  • SHA512

    cd5c91dc4de88b46384a6c615f6a0da3250a00a34c11221c8dcf9d857fde0ce8cff0a55f8442e2b7a1758d2f7b77b69d7265cc96427f972295124c06095cc3d1

Malware Config

Extracted

Family

njrat

Version

0.7 MultiHost

Botnet

HacKed

C2

anunankis1.duckdns.org,anunankis3.duckdns.org,karmina112.sytes.net,karmina114.sytes.net,burdun.dynu.net,burdun114.dynu.net:1177

Mutex

8746d62c81bb0c573a0a1086f9955c7b

Attributes
  • reg_key

    8746d62c81bb0c573a0a1086f9955c7b

  • splitter

    |'|'|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Executes dropped EXE 6 IoCs
  • Drops startup file 3 IoCs
  • Loads dropped DLL 5 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 4 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 use of AdjustPrivilegeToken 33 IoCs
  • Suspicious use of WriteProcessMemory 52 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\DBD5E126CAD149E95614507E63A255F2B26B9A4E539B7.exe
    "C:\Users\Admin\AppData\Local\Temp\DBD5E126CAD149E95614507E63A255F2B26B9A4E539B7.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2020
    • C:\Users\Admin\AppData\Local\Temp\DBD5E126CAD149E95614507E63A255F2B26B9A4E539B7.exe
      "C:\Users\Admin\AppData\Local\Temp\DBD5E126CAD149E95614507E63A255F2B26B9A4E539B7.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2044
      • C:\Users\Admin\AppData\Local\Temp\svchost.exe
        "C:\Users\Admin\AppData\Local\Temp\svchost.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:1708
        • C:\Users\Admin\AppData\Local\Temp\svchost.exe
          "C:\Users\Admin\AppData\Local\Temp\svchost.exe"
          4⤵
          • Executes dropped EXE
          • Drops startup file
          • Loads dropped DLL
          • Adds Run key to start application
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:576
          • C:\Windows\SysWOW64\schtasks.exe
            schtasks /create /sc minute /mo 1 /tn Skype /tr "C:\Users\Admin\AppData\Local\Temp\svchost.exe
            5⤵
            • Creates scheduled task(s)
            PID:1304
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {54BA905B-BE3D-43BB-A982-2F86C07D073B} S-1-5-21-2455352368-1077083310-2879168483-1000:QWOCTUPM\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1796
    • C:\Users\Admin\AppData\Local\Temp\svchost.exe
      C:\Users\Admin\AppData\Local\Temp\svchost.exe
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of SetThreadContext
      • Suspicious use of WriteProcessMemory
      PID:1752
      • C:\Users\Admin\AppData\Local\Temp\svchost.exe
        "C:\Users\Admin\AppData\Local\Temp\svchost.exe"
        3⤵
        • Executes dropped EXE
        PID:1784
    • C:\Users\Admin\AppData\Local\Temp\svchost.exe
      C:\Users\Admin\AppData\Local\Temp\svchost.exe
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of SetThreadContext
      • Suspicious use of WriteProcessMemory
      PID:1816
      • C:\Users\Admin\AppData\Local\Temp\svchost.exe
        "C:\Users\Admin\AppData\Local\Temp\svchost.exe"
        3⤵
        • Executes dropped EXE
        PID:2044

Network

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Registry Run Keys / Startup Folder

1
T1060

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Modify Registry

1
T1112

Discovery

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

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

    6b5bc3eba86c9efbdf993773af3f593e

    SHA1

    0fd0f10d34c28a928e69343caeeed7803646be8f

    SHA256

    dbd5e126cad149e95614507e63a255f2b26b9a4e539b7bcd25e7d8a1e2bd6e07

    SHA512

    cd5c91dc4de88b46384a6c615f6a0da3250a00a34c11221c8dcf9d857fde0ce8cff0a55f8442e2b7a1758d2f7b77b69d7265cc96427f972295124c06095cc3d1

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

    6b5bc3eba86c9efbdf993773af3f593e

    SHA1

    0fd0f10d34c28a928e69343caeeed7803646be8f

    SHA256

    dbd5e126cad149e95614507e63a255f2b26b9a4e539b7bcd25e7d8a1e2bd6e07

    SHA512

    cd5c91dc4de88b46384a6c615f6a0da3250a00a34c11221c8dcf9d857fde0ce8cff0a55f8442e2b7a1758d2f7b77b69d7265cc96427f972295124c06095cc3d1

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

    6b5bc3eba86c9efbdf993773af3f593e

    SHA1

    0fd0f10d34c28a928e69343caeeed7803646be8f

    SHA256

    dbd5e126cad149e95614507e63a255f2b26b9a4e539b7bcd25e7d8a1e2bd6e07

    SHA512

    cd5c91dc4de88b46384a6c615f6a0da3250a00a34c11221c8dcf9d857fde0ce8cff0a55f8442e2b7a1758d2f7b77b69d7265cc96427f972295124c06095cc3d1

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

    6b5bc3eba86c9efbdf993773af3f593e

    SHA1

    0fd0f10d34c28a928e69343caeeed7803646be8f

    SHA256

    dbd5e126cad149e95614507e63a255f2b26b9a4e539b7bcd25e7d8a1e2bd6e07

    SHA512

    cd5c91dc4de88b46384a6c615f6a0da3250a00a34c11221c8dcf9d857fde0ce8cff0a55f8442e2b7a1758d2f7b77b69d7265cc96427f972295124c06095cc3d1

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

    6b5bc3eba86c9efbdf993773af3f593e

    SHA1

    0fd0f10d34c28a928e69343caeeed7803646be8f

    SHA256

    dbd5e126cad149e95614507e63a255f2b26b9a4e539b7bcd25e7d8a1e2bd6e07

    SHA512

    cd5c91dc4de88b46384a6c615f6a0da3250a00a34c11221c8dcf9d857fde0ce8cff0a55f8442e2b7a1758d2f7b77b69d7265cc96427f972295124c06095cc3d1

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

    6b5bc3eba86c9efbdf993773af3f593e

    SHA1

    0fd0f10d34c28a928e69343caeeed7803646be8f

    SHA256

    dbd5e126cad149e95614507e63a255f2b26b9a4e539b7bcd25e7d8a1e2bd6e07

    SHA512

    cd5c91dc4de88b46384a6c615f6a0da3250a00a34c11221c8dcf9d857fde0ce8cff0a55f8442e2b7a1758d2f7b77b69d7265cc96427f972295124c06095cc3d1

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

    6b5bc3eba86c9efbdf993773af3f593e

    SHA1

    0fd0f10d34c28a928e69343caeeed7803646be8f

    SHA256

    dbd5e126cad149e95614507e63a255f2b26b9a4e539b7bcd25e7d8a1e2bd6e07

    SHA512

    cd5c91dc4de88b46384a6c615f6a0da3250a00a34c11221c8dcf9d857fde0ce8cff0a55f8442e2b7a1758d2f7b77b69d7265cc96427f972295124c06095cc3d1

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

    6b5bc3eba86c9efbdf993773af3f593e

    SHA1

    0fd0f10d34c28a928e69343caeeed7803646be8f

    SHA256

    dbd5e126cad149e95614507e63a255f2b26b9a4e539b7bcd25e7d8a1e2bd6e07

    SHA512

    cd5c91dc4de88b46384a6c615f6a0da3250a00a34c11221c8dcf9d857fde0ce8cff0a55f8442e2b7a1758d2f7b77b69d7265cc96427f972295124c06095cc3d1

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

    6b5bc3eba86c9efbdf993773af3f593e

    SHA1

    0fd0f10d34c28a928e69343caeeed7803646be8f

    SHA256

    dbd5e126cad149e95614507e63a255f2b26b9a4e539b7bcd25e7d8a1e2bd6e07

    SHA512

    cd5c91dc4de88b46384a6c615f6a0da3250a00a34c11221c8dcf9d857fde0ce8cff0a55f8442e2b7a1758d2f7b77b69d7265cc96427f972295124c06095cc3d1

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

    6b5bc3eba86c9efbdf993773af3f593e

    SHA1

    0fd0f10d34c28a928e69343caeeed7803646be8f

    SHA256

    dbd5e126cad149e95614507e63a255f2b26b9a4e539b7bcd25e7d8a1e2bd6e07

    SHA512

    cd5c91dc4de88b46384a6c615f6a0da3250a00a34c11221c8dcf9d857fde0ce8cff0a55f8442e2b7a1758d2f7b77b69d7265cc96427f972295124c06095cc3d1

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

    6b5bc3eba86c9efbdf993773af3f593e

    SHA1

    0fd0f10d34c28a928e69343caeeed7803646be8f

    SHA256

    dbd5e126cad149e95614507e63a255f2b26b9a4e539b7bcd25e7d8a1e2bd6e07

    SHA512

    cd5c91dc4de88b46384a6c615f6a0da3250a00a34c11221c8dcf9d857fde0ce8cff0a55f8442e2b7a1758d2f7b77b69d7265cc96427f972295124c06095cc3d1

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

    6b5bc3eba86c9efbdf993773af3f593e

    SHA1

    0fd0f10d34c28a928e69343caeeed7803646be8f

    SHA256

    dbd5e126cad149e95614507e63a255f2b26b9a4e539b7bcd25e7d8a1e2bd6e07

    SHA512

    cd5c91dc4de88b46384a6c615f6a0da3250a00a34c11221c8dcf9d857fde0ce8cff0a55f8442e2b7a1758d2f7b77b69d7265cc96427f972295124c06095cc3d1

  • memory/576-77-0x0000000000280000-0x0000000000281000-memory.dmp
    Filesize

    4KB

  • memory/576-73-0x0000000000407AEE-mapping.dmp
  • memory/1304-78-0x0000000000000000-mapping.dmp
  • memory/1708-76-0x0000000000530000-0x0000000000531000-memory.dmp
    Filesize

    4KB

  • memory/1708-67-0x0000000000000000-mapping.dmp
  • memory/1752-80-0x0000000000000000-mapping.dmp
  • memory/1752-88-0x0000000001FD0000-0x0000000001FD1000-memory.dmp
    Filesize

    4KB

  • memory/1784-85-0x0000000000407AEE-mapping.dmp
  • memory/1784-89-0x00000000006E0000-0x00000000006E1000-memory.dmp
    Filesize

    4KB

  • memory/1816-90-0x0000000000000000-mapping.dmp
  • memory/1816-102-0x0000000001FC0000-0x0000000001FC1000-memory.dmp
    Filesize

    4KB

  • memory/2020-61-0x0000000000470000-0x0000000000471000-memory.dmp
    Filesize

    4KB

  • memory/2020-60-0x00000000754F1000-0x00000000754F3000-memory.dmp
    Filesize

    8KB

  • memory/2044-63-0x0000000000407AEE-mapping.dmp
  • memory/2044-65-0x0000000000C30000-0x0000000000C31000-memory.dmp
    Filesize

    4KB

  • memory/2044-95-0x0000000000407AEE-mapping.dmp
  • memory/2044-97-0x0000000000080000-0x000000000008C000-memory.dmp
    Filesize

    48KB

  • memory/2044-100-0x0000000000080000-0x000000000008C000-memory.dmp
    Filesize

    48KB

  • memory/2044-103-0x0000000000350000-0x0000000000351000-memory.dmp
    Filesize

    4KB

  • memory/2044-62-0x0000000000400000-0x000000000040C000-memory.dmp
    Filesize

    48KB