njrat | fff44a39e7716ea429140aaa3dde88436ea98cce368956590aeae2f90b6848fa

Analysis

max time kernel
149s
max time network
157s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
21/05/2024, 22:24

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General

Target
64fb617323424c9fa65c16ecb2d5df77_JaffaCakes118.exe
Size 339KB
Sample240521-2bpvxacc8v
SHA256 fff44a39e7716ea429140aaa3dde88436ea98cce368956590aeae2f90b6848fa
MD5 64fb617323424c9fa65c16ecb2d5df77
SHA1 bd873222532141b10754caf404badd3779bea2b8
SHA512 741e4939af6fe6662c352b47ab5b24b8601d821013c9992fa85988aa8d6244679e3cf81a3d08cc22adb92f563ed4330bac4c338a6bc8322e618417dbe1d262fb
SSDEEP 6144:XrO/xuvon76Cx1NcV8KzbfZTJbse0tKYV8B/eRmt3c/Dy:XrOj76Cxc1fZ18tKzd2mt32u
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

njrat hacked evasion persistence trojan

Malware Config

Extracted

Family

njrat

Version

im523

Botnet

HacKed

am1654aa.kro.kr:5050

Mutex

48f856e15c0fabf5c7677143e38aad4e

Attributes

reg_key
48f856e15c0fabf5c7677143e38aad4e
splitter
|'|'|

Signatures

njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat

Modifies Windows Firewall 2 TTPs 1 IoCs

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
2788	netsh.exe

Checks computer location settings 2 TTPs 1 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000\Control Panel\International\Geo\Nation	64fb617323424c9fa65c16ecb2d5df77_JaffaCakes118.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\48f856e15c0fabf5c7677143e38aad4e.exe	svchost.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\48f856e15c0fabf5c7677143e38aad4e.exe	svchost.exe

Executes dropped EXE 2 IoCs

pid	Process
2972	svchost.exe
2456	svchost.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\48f856e15c0fabf5c7677143e38aad4e = "\"C:\\Users\\Admin\\svchost.exe\" .."	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\48f856e15c0fabf5c7677143e38aad4e = "\"C:\\Users\\Admin\\svchost.exe\" .."	svchost.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 3672 set thread context of 628	3672	64fb617323424c9fa65c16ecb2d5df77_JaffaCakes118.exe	92
PID 2972 set thread context of 2456	2972	svchost.exe	105

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 35 IoCs

description	pid	Process
Token: SeDebugPrivilege	2456	svchost.exe
Token: 33	2456	svchost.exe
Token: SeIncBasePriorityPrivilege	2456	svchost.exe
Token: 33	2456	svchost.exe
Token: SeIncBasePriorityPrivilege	2456	svchost.exe
Token: 33	2456	svchost.exe
Token: SeIncBasePriorityPrivilege	2456	svchost.exe
Token: 33	2456	svchost.exe
Token: SeIncBasePriorityPrivilege	2456	svchost.exe
Token: 33	2456	svchost.exe
Token: SeIncBasePriorityPrivilege	2456	svchost.exe
Token: 33	2456	svchost.exe
Token: SeIncBasePriorityPrivilege	2456	svchost.exe
Token: 33	2456	svchost.exe
Token: SeIncBasePriorityPrivilege	2456	svchost.exe
Token: 33	2456	svchost.exe
Token: SeIncBasePriorityPrivilege	2456	svchost.exe
Token: 33	2456	svchost.exe
Token: SeIncBasePriorityPrivilege	2456	svchost.exe
Token: 33	2456	svchost.exe
Token: SeIncBasePriorityPrivilege	2456	svchost.exe
Token: 33	2456	svchost.exe
Token: SeIncBasePriorityPrivilege	2456	svchost.exe
Token: 33	2456	svchost.exe
Token: SeIncBasePriorityPrivilege	2456	svchost.exe
Token: 33	2456	svchost.exe
Token: SeIncBasePriorityPrivilege	2456	svchost.exe
Token: 33	2456	svchost.exe
Token: SeIncBasePriorityPrivilege	2456	svchost.exe
Token: 33	2456	svchost.exe
Token: SeIncBasePriorityPrivilege	2456	svchost.exe
Token: 33	2456	svchost.exe
Token: SeIncBasePriorityPrivilege	2456	svchost.exe
Token: 33	2456	svchost.exe
Token: SeIncBasePriorityPrivilege	2456	svchost.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 3672 wrote to memory of 628	3672	64fb617323424c9fa65c16ecb2d5df77_JaffaCakes118.exe	92
PID 3672 wrote to memory of 628	3672	64fb617323424c9fa65c16ecb2d5df77_JaffaCakes118.exe	92
PID 3672 wrote to memory of 628	3672	64fb617323424c9fa65c16ecb2d5df77_JaffaCakes118.exe	92
PID 3672 wrote to memory of 628	3672	64fb617323424c9fa65c16ecb2d5df77_JaffaCakes118.exe	92
PID 3672 wrote to memory of 628	3672	64fb617323424c9fa65c16ecb2d5df77_JaffaCakes118.exe	92
PID 3672 wrote to memory of 628	3672	64fb617323424c9fa65c16ecb2d5df77_JaffaCakes118.exe	92
PID 3672 wrote to memory of 628	3672	64fb617323424c9fa65c16ecb2d5df77_JaffaCakes118.exe	92
PID 628 wrote to memory of 2972	628	64fb617323424c9fa65c16ecb2d5df77_JaffaCakes118.exe	104
PID 628 wrote to memory of 2972	628	64fb617323424c9fa65c16ecb2d5df77_JaffaCakes118.exe	104
PID 628 wrote to memory of 2972	628	64fb617323424c9fa65c16ecb2d5df77_JaffaCakes118.exe	104
PID 2972 wrote to memory of 2456	2972	svchost.exe	105
PID 2972 wrote to memory of 2456	2972	svchost.exe	105
PID 2972 wrote to memory of 2456	2972	svchost.exe	105
PID 2972 wrote to memory of 2456	2972	svchost.exe	105
PID 2972 wrote to memory of 2456	2972	svchost.exe	105
PID 2972 wrote to memory of 2456	2972	svchost.exe	105
PID 2972 wrote to memory of 2456	2972	svchost.exe	105
PID 2456 wrote to memory of 2788	2456	svchost.exe	108
PID 2456 wrote to memory of 2788	2456	svchost.exe	108
PID 2456 wrote to memory of 2788	2456	svchost.exe	108

C:\Users\Admin\AppData\Local\Temp\64fb617323424c9fa65c16ecb2d5df77_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\64fb617323424c9fa65c16ecb2d5df77_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3672
- C:\Users\Admin\AppData\Local\Temp\64fb617323424c9fa65c16ecb2d5df77_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\64fb617323424c9fa65c16ecb2d5df77_JaffaCakes118.exe"
  2⤵
  - Checks computer location settings
  - Suspicious use of WriteProcessMemory
  PID:628
- - C:\Users\Admin\svchost.exe
    "C:\Users\Admin\svchost.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:2972
  - - C:\Users\Admin\svchost.exe
      "C:\Users\Admin\svchost.exe"
      4⤵
      Drops startup file
      Executes dropped EXE
      Adds Run key to start application
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:2456
    - - C:\Windows\SysWOW64\netsh.exe
        
        netsh firewall add allowedprogram "C:\Users\Admin\svchost.exe" "svchost.exe" ENABLE
        5⤵
        Modifies Windows Firewall
        
        PID:2788

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=4292,i,11746347647270949551,7786733067759450703,262144 --variations-seed-version --mojo-platform-channel-handle=4028 /prefetch:8
1⤵
PID:4492

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

64fb617323424c9fa65c16ecb2d5df77_JaffaCakes118.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\64fb617323424c9fa65c16ecb2d5df77_JaffaCakes118.exe.log
Size 319B
SHA256 d182dd648c92e41cd62dccc65f130c07f0a96c03b32f907c3d1218e9aa5bda03
MD5 824ba7b7eed8b900a98dd25129c4cd83
SHA1 54478770b2158000ef365591d42977cb854453a1
SHA512 ae4f3a9673711ecb6cc5d06874c587341d5094803923b53b6e982278fa64549d7acf866de165e23750facd55da556b6794c0d32f129f4087529c73acd4ffb11e
MD5 SHA1 SHA512

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svchost.exe

Path C:\Users\Admin\svchost.exe
Size 339KB
SHA256 fff44a39e7716ea429140aaa3dde88436ea98cce368956590aeae2f90b6848fa
MD5 64fb617323424c9fa65c16ecb2d5df77
SHA1 bd873222532141b10754caf404badd3779bea2b8
SHA512 741e4939af6fe6662c352b47ab5b24b8601d821013c9992fa85988aa8d6244679e3cf81a3d08cc22adb92f563ed4330bac4c338a6bc8322e618417dbe1d262fb
SSDEEP 6144:XrO/xuvon76Cx1NcV8KzbfZTJbse0tKYV8B/eRmt3c/Dy:XrOj76Cxc1fZ18tKzd2mt32u
MD5 SHA1 SHA512 SSDEEP

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memory/628-37-0x0000000074770000-0x0000000074D21000-memory.dmp

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memory/628-3-0x0000000000400000-0x000000000040E000-memory.dmp

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memory/628-7-0x0000000074770000-0x0000000074D21000-memory.dmp

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memory/2456-48-0x0000000074770000-0x0000000074D21000-memory.dmp

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memory/2456-46-0x0000000074770000-0x0000000074D21000-memory.dmp

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memory/2456-44-0x0000000074770000-0x0000000074D21000-memory.dmp

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memory/2972-38-0x0000000074770000-0x0000000074D21000-memory.dmp

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memory/2972-39-0x0000000074770000-0x0000000074D21000-memory.dmp

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memory/2972-45-0x0000000074770000-0x0000000074D21000-memory.dmp

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memory/3672-0-0x0000000074772000-0x0000000074773000-memory.dmp

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memory/3672-6-0x0000000074770000-0x0000000074D21000-memory.dmp

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memory/3672-2-0x0000000074770000-0x0000000074D21000-memory.dmp

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memory/3672-1-0x0000000074770000-0x0000000074D21000-memory.dmp

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Analysis

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General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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