Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28-04-2024 16:53

General

  • Target

    05a5346fa2d5a6364a6616a92d0ed2c0_JaffaCakes118.exe

  • Size

    184KB

  • MD5

    05a5346fa2d5a6364a6616a92d0ed2c0

  • SHA1

    7513eb1ca1f04855015df40fb369f82bd84ea5b2

  • SHA256

    0c6af3f27224048739574ac36878a79982f76b7bc522db5b3642a229b566954d

  • SHA512

    ec87249641518b23858f9a170153531ecca9acb81f6b0b88886c81689f940b9bf08677fa9d2b9764042b39c73cbe8412e846ab422d775d8ac01c300cdeee352b

  • SSDEEP

    1536:JxqjQ+P04wsmJCLWwjOAbDOnjjzgV1D7PK1nRAKVjkOwldP:sr85CLTCAbDOnj/gV1D7PKAK2Owlx

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

PC

C2

zack1313.publicvm.com:6078

Mutex

54ad39b024fbafb6cdb1a4ffb6386199

Attributes
  • reg_key

    54ad39b024fbafb6cdb1a4ffb6386199

  • splitter

    |'|'|

Signatures

  • Detect Neshta payload 4 IoCs
  • Neshta

    Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 2 IoCs
  • Modifies system executable filetype association 2 TTPs 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 35 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\05a5346fa2d5a6364a6616a92d0ed2c0_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\05a5346fa2d5a6364a6616a92d0ed2c0_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • Modifies system executable filetype association
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:4744
    • C:\Users\Admin\AppData\Local\Temp\3582-490\05a5346fa2d5a6364a6616a92d0ed2c0_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\05a5346fa2d5a6364a6616a92d0ed2c0_JaffaCakes118.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious use of SetThreadContext
      • Suspicious use of WriteProcessMemory
      PID:1304
      • C:\Users\Admin\AppData\Local\Temp\3582-490\05a5346fa2d5a6364a6616a92d0ed2c0_JaffaCakes118.exe
        "C:\Users\Admin\AppData\Local\Temp\3582-490\05a5346fa2d5a6364a6616a92d0ed2c0_JaffaCakes118.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1868
        • C:\Windows\SysWOW64\netsh.exe
          netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\3582-490\05a5346fa2d5a6364a6616a92d0ed2c0_JaffaCakes118.exe" "05a5346fa2d5a6364a6616a92d0ed2c0_JaffaCakes118.exe" ENABLE
          4⤵
          • Modifies Windows Firewall
          PID:692

Network

MITRE ATT&CK Matrix ATT&CK v13

Persistence

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Event Triggered Execution

1
T1546

Change Default File Association

1
T1546.001

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Event Triggered Execution

1
T1546

Change Default File Association

1
T1546.001

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Impair Defenses

1
T1562

Disable or Modify System Firewall

1
T1562.004

Modify Registry

2
T1112

Credential Access

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

1
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\PROGRA~2\Adobe\ACROBA~1\Reader\ACROTE~1.EXE
    Filesize

    86KB

    MD5

    3b73078a714bf61d1c19ebc3afc0e454

    SHA1

    9abeabd74613a2f533e2244c9ee6f967188e4e7e

    SHA256

    ded54d1fcca07b6bff2bc3b9a1131eac29ff1f836e5d7a7c5c325ec5abe96e29

    SHA512

    75959d4e8a7649c3268b551a2a378e6d27c0bfb03d2422ebeeb67b0a3f78c079473214057518930f2d72773ce79b106fd2d78405e8e3d8883459dcbb49c163c4

  • C:\Users\Admin\AppData\Local\Temp\3582-490\05a5346fa2d5a6364a6616a92d0ed2c0_JaffaCakes118.exe
    Filesize

    144KB

    MD5

    74ee304eaef18f46a3327ef9a0e9afe1

    SHA1

    af091f9db2cb4fefaf7ab4b50a84fbe48d4b3a6d

    SHA256

    567cfdc989107ae4876345a611b5e7eddb2af812a8d9ba17285edd1b7a8aa2b4

    SHA512

    f8cf78abcaf1a9abef696587784b60c5388ae1b43fea1b0f52c7dec942176b9f51365169b80de9b08e2618ce950a9a6ec4a88072107e0eee4cb3fb630b0d6d21

  • C:\Users\Admin\AppData\Roaming\Service.exe
    Filesize

    184KB

    MD5

    89769c6e27458b32ce22756a9be55584

    SHA1

    86de7346f840ab1b37e5d817062d876b2955efc8

    SHA256

    c9683dea51a057409ed13fe38df2db5b20b44c58f1d92b45ec1140b69a2640bd

    SHA512

    81c2944ca695646a68eb731de9cc2d0e042d6ffcd36bf40e9374fc9056d1f05bc635d37e591a12fbca202639b255f798223ee53b8ea3ecccd86fc9d48d64dfb8

  • memory/1304-16-0x0000000005670000-0x0000000005680000-memory.dmp
    Filesize

    64KB

  • memory/1304-24-0x0000000073E80000-0x0000000074630000-memory.dmp
    Filesize

    7.7MB

  • memory/1304-14-0x0000000073E80000-0x0000000074630000-memory.dmp
    Filesize

    7.7MB

  • memory/1304-15-0x00000000032C0000-0x00000000032C8000-memory.dmp
    Filesize

    32KB

  • memory/1304-12-0x0000000000CE0000-0x0000000000D0A000-memory.dmp
    Filesize

    168KB

  • memory/1304-13-0x0000000005D20000-0x00000000062C4000-memory.dmp
    Filesize

    5.6MB

  • memory/1868-114-0x0000000004C20000-0x0000000004CB2000-memory.dmp
    Filesize

    584KB

  • memory/1868-22-0x0000000004990000-0x0000000004A2C000-memory.dmp
    Filesize

    624KB

  • memory/1868-23-0x0000000073E80000-0x0000000074630000-memory.dmp
    Filesize

    7.7MB

  • memory/1868-21-0x00000000001F0000-0x00000000001FC000-memory.dmp
    Filesize

    48KB

  • memory/1868-115-0x0000000004B70000-0x0000000004B80000-memory.dmp
    Filesize

    64KB

  • memory/1868-116-0x0000000004B60000-0x0000000004B6A000-memory.dmp
    Filesize

    40KB

  • memory/1868-121-0x0000000073E80000-0x0000000074630000-memory.dmp
    Filesize

    7.7MB

  • memory/1868-122-0x0000000004B70000-0x0000000004B80000-memory.dmp
    Filesize

    64KB

  • memory/4744-117-0x0000000000400000-0x000000000041B000-memory.dmp
    Filesize

    108KB

  • memory/4744-118-0x0000000000400000-0x000000000041B000-memory.dmp
    Filesize

    108KB

  • memory/4744-120-0x0000000000400000-0x000000000041B000-memory.dmp
    Filesize

    108KB