njrat | 7c17747837c4171c47f331a7a3d77ea927ca47efab1c7577daf33bd00d42d859

Analysis

max time kernel
149s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240704-en
resource tags

arch:x64arch:x86image:win10v2004-20240704-enlocale:en-usos:windows10-2004-x64system
submitted
05/07/2024, 13:31

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General

Target
0636bc8bb2fd40c470df196870c49de5.exe
Size 116KB
Sample240705-qsdy7aygpm
SHA256 7c17747837c4171c47f331a7a3d77ea927ca47efab1c7577daf33bd00d42d859
MD5 0636bc8bb2fd40c470df196870c49de5
SHA1 f22ec26ce1b552db025c3d5bc7f62ffe771013b1
SHA512 3298f62b2ead143b96c332e54b29103071119b9944b72ffa48eac3856550b53cfae37aa849b57e5664dc1b6ef2d36b07127e5de6b853bec334ba002d8551e9fe
SSDEEP 1536:WWp5eznKUlIOp3YjVCguHEvQEbFqVC3woFRKpT4XEQhuxzuMDLWL:P5eznsjsguGDFqGZ2rDLw
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

njrat neuf evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

neuf

doddyfire.linkpc.net:10000

Mutex

e1a87040f2026369a233f9ae76301b7b

Attributes

reg_key
e1a87040f2026369a233f9ae76301b7b
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
3920	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-1-5-21-2494989678-839960665-2515455429-1000\Control Panel\International\Geo\Nation	0636bc8bb2fd40c470df196870c49de5.exe

Executes dropped EXE 2 IoCs

pid	Process
1544	chargeable.exe
3924	chargeable.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-1-5-21-2494989678-839960665-2515455429-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\confuse = "C:\\Users\\Admin\\AppData\\Roaming\\confuse\\chargeable.exe"	0636bc8bb2fd40c470df196870c49de5.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2494989678-839960665-2515455429-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysMain = "C:\\Users\\Admin\\AppData\\Local\\Temp\\0636bc8bb2fd40c470df196870c49de5.exe"	0636bc8bb2fd40c470df196870c49de5.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1544 set thread context of 3924	1544	chargeable.exe	86

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

System Information Discovery
T1082

Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

persistence privilege_escalation

Netsh Helper DLL

T1546.007

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Suspicious use of AdjustPrivilegeToken 33 IoCs

description	pid	Process
Token: SeDebugPrivilege	3924	chargeable.exe
Token: 33	3924	chargeable.exe
Token: SeIncBasePriorityPrivilege	3924	chargeable.exe
Token: 33	3924	chargeable.exe
Token: SeIncBasePriorityPrivilege	3924	chargeable.exe
Token: 33	3924	chargeable.exe
Token: SeIncBasePriorityPrivilege	3924	chargeable.exe
Token: 33	3924	chargeable.exe
Token: SeIncBasePriorityPrivilege	3924	chargeable.exe
Token: 33	3924	chargeable.exe
Token: SeIncBasePriorityPrivilege	3924	chargeable.exe
Token: 33	3924	chargeable.exe
Token: SeIncBasePriorityPrivilege	3924	chargeable.exe
Token: 33	3924	chargeable.exe
Token: SeIncBasePriorityPrivilege	3924	chargeable.exe
Token: 33	3924	chargeable.exe
Token: SeIncBasePriorityPrivilege	3924	chargeable.exe
Token: 33	3924	chargeable.exe
Token: SeIncBasePriorityPrivilege	3924	chargeable.exe
Token: 33	3924	chargeable.exe
Token: SeIncBasePriorityPrivilege	3924	chargeable.exe
Token: 33	3924	chargeable.exe
Token: SeIncBasePriorityPrivilege	3924	chargeable.exe
Token: 33	3924	chargeable.exe
Token: SeIncBasePriorityPrivilege	3924	chargeable.exe
Token: 33	3924	chargeable.exe
Token: SeIncBasePriorityPrivilege	3924	chargeable.exe
Token: 33	3924	chargeable.exe
Token: SeIncBasePriorityPrivilege	3924	chargeable.exe
Token: 33	3924	chargeable.exe
Token: SeIncBasePriorityPrivilege	3924	chargeable.exe
Token: 33	3924	chargeable.exe
Token: SeIncBasePriorityPrivilege	3924	chargeable.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 1884 wrote to memory of 1544	1884	0636bc8bb2fd40c470df196870c49de5.exe	85
PID 1884 wrote to memory of 1544	1884	0636bc8bb2fd40c470df196870c49de5.exe	85
PID 1884 wrote to memory of 1544	1884	0636bc8bb2fd40c470df196870c49de5.exe	85
PID 1544 wrote to memory of 3924	1544	chargeable.exe	86
PID 1544 wrote to memory of 3924	1544	chargeable.exe	86
PID 1544 wrote to memory of 3924	1544	chargeable.exe	86
PID 1544 wrote to memory of 3924	1544	chargeable.exe	86
PID 1544 wrote to memory of 3924	1544	chargeable.exe	86
PID 1544 wrote to memory of 3924	1544	chargeable.exe	86
PID 1544 wrote to memory of 3924	1544	chargeable.exe	86
PID 1544 wrote to memory of 3924	1544	chargeable.exe	86
PID 3924 wrote to memory of 3920	3924	chargeable.exe	87
PID 3924 wrote to memory of 3920	3924	chargeable.exe	87
PID 3924 wrote to memory of 3920	3924	chargeable.exe	87

C:\Users\Admin\AppData\Local\Temp\0636bc8bb2fd40c470df196870c49de5.exe
"C:\Users\Admin\AppData\Local\Temp\0636bc8bb2fd40c470df196870c49de5.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1884
- C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
  "C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:1544
- - C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
    C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
    3⤵
    - Executes dropped EXE
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:3924
  - - C:\Windows\SysWOW64\netsh.exe
      netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe" "chargeable.exe" ENABLE
      4⤵
      Modifies Windows Firewall
      Event Triggered Execution: Netsh Helper DLL
      PID:3920

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

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

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

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

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

chargeable.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\chargeable.exe.log
Size 400B
SHA256 c7effe9cb81a70d738dee863991afefab040290d4c4b78b4202383bcb9f88fcd
MD5 0a9b4592cd49c3c21f6767c2dabda92f
SHA1 f534297527ae5ccc0ecb2221ddeb8e58daeb8b74
SHA512 6b878df474e5bbfb8e9e265f15a76560c2ef151dcebc6388c82d7f6f86ffaf83f5ade5a09f1842e493cb6c8fd63b0b88d088c728fd725f7139f965a5ee332307
MD5 SHA1 SHA512

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chargeable.exe

Path C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
Size 116KB
SHA256 12bd8cd5125bc7486408438378dba9fd1a9339f2c015fd8df47cd4214383d3db
MD5 3f0b7613e7458887a94e13e85a0d4f7c
SHA1 dcbf6d2955f8ed5ae081e04f9f12b86d9f503146
SHA512 766ceab807a6354e011b151cc894db2d476b32d4a6a2e6c3915f11f94d8077c1f3721a7abda17d5c0aa61e0b136ec62e0248a91749395a5d18f578ebfb160953
SSDEEP 1536:WWp5eznKUlIOp3YjVCguHEvQEbFqVC3woFRKpT4XEQhuxzuMDLWZ:P5eznsjsguGDFqGZ2rDLy
MD5 SHA1 SHA512 SSDEEP

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memory/1544-18-0x0000000074E30000-0x00000000753E1000-memory.dmp

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memory/1544-23-0x0000000074E30000-0x00000000753E1000-memory.dmp

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memory/1884-0-0x0000000074E32000-0x0000000074E33000-memory.dmp

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memory/1884-1-0x0000000074E30000-0x00000000753E1000-memory.dmp

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memory/1884-2-0x0000000074E30000-0x00000000753E1000-memory.dmp

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memory/1884-17-0x0000000074E30000-0x00000000753E1000-memory.dmp

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memory/3924-19-0x0000000000400000-0x000000000040C000-memory.dmp

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memory/3924-25-0x0000000074E30000-0x00000000753E1000-memory.dmp

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memory/3924-24-0x0000000074E30000-0x00000000753E1000-memory.dmp

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memory/3924-26-0x0000000074E30000-0x00000000753E1000-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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