Overview

overview

10

Static

static

a257fb9da7...1c.exe

windows7_x64

10

a257fb9da7...1c.exe

windows10_x64

10

Analysis

  • max time kernel
    149s
  • max time network
    149s
  • platform
    windows10_x64
  • resource
    win10-en-20211208
  • submitted
    28-12-2021 03:32

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General

  • Target

    a257fb9da7db9e80d787283985c8121c.exe

  • Size

    25KB

  • MD5

    a257fb9da7db9e80d787283985c8121c

  • SHA1

    2c5a07669e3f0e263b7e4eafe79241e03d2683a1

  • SHA256

    e53485cd1127d2af7d09d0e7d971f92d13ac910ec1124055868107fa9738648c

  • SHA512

    04cae19f1d1720f1e2ff8e88a89fea0bb4d40895968ab48588a3cedc6b0c3158430db9093c99a573eb4937bdb2e3d98c925c29c7226e8df46a8f49d491ac02c8

Score
10/10
njratpctrojan

Malware Config

Extracted

Family

njrat

Version

Njrat 0.7 Golden By Hassan Amiri

Botnet

PC

C2

8.tcp.ngrok.io:17931

Mutex

Windows Update

Attributes
  • reg_key

    Windows Update

  • splitter

    |Hassan|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

    trojannjrat
  • Executes dropped EXE 3 IoCs
  • Drops startup file 2 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.

    persistence
  • Suspicious behavior: GetForegroundWindowSpam 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 31 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a257fb9da7db9e80d787283985c8121c.exe
    "C:\Users\Admin\AppData\Local\Temp\a257fb9da7db9e80d787283985c8121c.exe"
    1⤵
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of WriteProcessMemory
    PID:3604
    • C:\Users\Admin\AppData\Roaming\windows_update.exe
      "C:\Users\Admin\AppData\Roaming\windows_update.exe"
      2⤵
      • Executes dropped EXE
      • Drops startup file
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3956
      • C:\Windows\SYSTEM32\schtasks.exe
        schtasks /create /sc minute /mo 1 /tn Server /tr C:\Users\Admin\AppData\Local\Temp/Server.exe
        3⤵
        • Creates scheduled task(s)
        PID:4360
  • C:\Users\Admin\AppData\Local\Temp\Server.exe
    C:\Users\Admin\AppData\Local\Temp/Server.exe
    1⤵
    • Executes dropped EXE
    PID:856
  • C:\Users\Admin\AppData\Local\Temp\Server.exe
    C:\Users\Admin\AppData\Local\Temp/Server.exe
    1⤵
    • Executes dropped EXE
    PID:1836

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1
T1053

Persistence

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Credential Access

Discovery

System Information Discovery

1
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\Server.exe.log
    MD5

    ada37846cea22757d6153e65b720a367

    SHA1

    d9c9e33987d095b32c364fe40dd6f054feaf7ea9

    SHA256

    7daa4e8a6296b9e3df9669f6a574cbe481f2df9c751affbeb41a541173264520

    SHA512

    592640e40ad0c6bcd8719f2cdbf828f2e322ad729c23ac3b44dd252a9c0b08d370a1cfcbcb9038cdffed0866ae4d2f8762c421f5e1a89c8d9273f482d9d2662f

    Download Submit
  • C:\Users\Admin\AppData\Local\Temp\Server.exe
    MD5

    a257fb9da7db9e80d787283985c8121c

    SHA1

    2c5a07669e3f0e263b7e4eafe79241e03d2683a1

    SHA256

    e53485cd1127d2af7d09d0e7d971f92d13ac910ec1124055868107fa9738648c

    SHA512

    04cae19f1d1720f1e2ff8e88a89fea0bb4d40895968ab48588a3cedc6b0c3158430db9093c99a573eb4937bdb2e3d98c925c29c7226e8df46a8f49d491ac02c8

    Download Submit
  • C:\Users\Admin\AppData\Local\Temp\Server.exe
    MD5

    a257fb9da7db9e80d787283985c8121c

    SHA1

    2c5a07669e3f0e263b7e4eafe79241e03d2683a1

    SHA256

    e53485cd1127d2af7d09d0e7d971f92d13ac910ec1124055868107fa9738648c

    SHA512

    04cae19f1d1720f1e2ff8e88a89fea0bb4d40895968ab48588a3cedc6b0c3158430db9093c99a573eb4937bdb2e3d98c925c29c7226e8df46a8f49d491ac02c8

    Download Submit
  • C:\Users\Admin\AppData\Local\Temp\Server.exe
    MD5

    a257fb9da7db9e80d787283985c8121c

    SHA1

    2c5a07669e3f0e263b7e4eafe79241e03d2683a1

    SHA256

    e53485cd1127d2af7d09d0e7d971f92d13ac910ec1124055868107fa9738648c

    SHA512

    04cae19f1d1720f1e2ff8e88a89fea0bb4d40895968ab48588a3cedc6b0c3158430db9093c99a573eb4937bdb2e3d98c925c29c7226e8df46a8f49d491ac02c8

    Download Submit
  • C:\Users\Admin\AppData\Roaming\windows_update.exe
    MD5

    a257fb9da7db9e80d787283985c8121c

    SHA1

    2c5a07669e3f0e263b7e4eafe79241e03d2683a1

    SHA256

    e53485cd1127d2af7d09d0e7d971f92d13ac910ec1124055868107fa9738648c

    SHA512

    04cae19f1d1720f1e2ff8e88a89fea0bb4d40895968ab48588a3cedc6b0c3158430db9093c99a573eb4937bdb2e3d98c925c29c7226e8df46a8f49d491ac02c8

    Download Submit
  • C:\Users\Admin\AppData\Roaming\windows_update.exe
    MD5

    a257fb9da7db9e80d787283985c8121c

    SHA1

    2c5a07669e3f0e263b7e4eafe79241e03d2683a1

    SHA256

    e53485cd1127d2af7d09d0e7d971f92d13ac910ec1124055868107fa9738648c

    SHA512

    04cae19f1d1720f1e2ff8e88a89fea0bb4d40895968ab48588a3cedc6b0c3158430db9093c99a573eb4937bdb2e3d98c925c29c7226e8df46a8f49d491ac02c8

    Download Submit
  • memory/856-129-0x0000000000150000-0x0000000000158000-memory.dmp
    Filesize

    32KB

    Download
  • memory/856-132-0x0000000000660000-0x0000000000662000-memory.dmp
    Filesize

    8KB

    Download
  • memory/856-131-0x0000000000650000-0x0000000000662000-memory.dmp
    Filesize

    72KB

    Download
  • memory/856-130-0x0000000000150000-0x0000000000158000-memory.dmp
    Filesize

    32KB

    Download
  • memory/1836-138-0x000000001B550000-0x000000001B552000-memory.dmp
    Filesize

    8KB

    Download
  • memory/1836-137-0x0000000000B10000-0x0000000000B22000-memory.dmp
    Filesize

    72KB

    Download
  • memory/1836-136-0x0000000000620000-0x0000000000628000-memory.dmp
    Filesize

    32KB

    Download
  • memory/1836-135-0x0000000000620000-0x0000000000628000-memory.dmp
    Filesize

    32KB

    Download
  • memory/3604-116-0x0000000000F90000-0x0000000000F98000-memory.dmp
    Filesize

    32KB

    Download
  • memory/3604-117-0x0000000003040000-0x0000000003052000-memory.dmp
    Filesize

    72KB

    Download
  • memory/3604-118-0x000000001BB90000-0x000000001BB92000-memory.dmp
    Filesize

    8KB

    Download
  • memory/3604-115-0x0000000000F90000-0x0000000000F98000-memory.dmp
    Filesize

    32KB

    Download
  • memory/3956-125-0x0000000000EB0000-0x0000000000EB2000-memory.dmp
    Filesize

    8KB

    Download
  • memory/3956-124-0x0000000000E50000-0x0000000000E62000-memory.dmp
    Filesize

    72KB

    Download
  • memory/3956-123-0x0000000000750000-0x0000000000758000-memory.dmp
    Filesize

    32KB

    Download
  • memory/3956-122-0x0000000000750000-0x0000000000758000-memory.dmp
    Filesize

    32KB

    Download
  • memory/3956-119-0x0000000000000000-mapping.dmp
    Download
  • memory/4360-126-0x0000000000000000-mapping.dmp
    Download