njrat | 2650cfb26e7feaecef2d3b0f97656bdb1d37b64b206d78f18555eede941ad871

General

Target

5d4d2cb40386a5a31f997e2064ec803f.exe
Size

116KB
MD5

5d4d2cb40386a5a31f997e2064ec803f
SHA1

ae48f5e63e222b32d92ac2a12c9a473186cfaf5d
SHA256

2650cfb26e7feaecef2d3b0f97656bdb1d37b64b206d78f18555eede941ad871
SHA512

95312ac8179f8ac93fcf0e94b8da0fd5a91a9a49ed8fa632b7409b33c771aeb619fc458f2de97993b03cd40c48cb8671f85c9532a4ff597e3fbdbf3a56c7c51a
SSDEEP

1536:WWp5eznKUlIOp3YjVCguHEvQEbFqVC3woFRKpT4XEQhuxzuMDL1:P5eznsjsguGDFqGZ2rDL1

Score

10^/10

njrat neuf evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

neuf

C2

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
1580	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-1-5-21-200405930-3877336739-3533750831-1000\Control Panel\International\Geo\Nation	5d4d2cb40386a5a31f997e2064ec803f.exe

Executes dropped EXE 2 IoCs

pid	Process
4452	chargeable.exe
936	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-1-5-21-200405930-3877336739-3533750831-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\confuse = "C:\\Users\\Admin\\AppData\\Roaming\\confuse\\chargeable.exe"	5d4d2cb40386a5a31f997e2064ec803f.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-200405930-3877336739-3533750831-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysMain = "C:\\Users\\Admin\\AppData\\Local\\Temp\\5d4d2cb40386a5a31f997e2064ec803f.exe"	5d4d2cb40386a5a31f997e2064ec803f.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4452 set thread context of 936	4452	chargeable.exe	93

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	936	chargeable.exe
Token: 33	936	chargeable.exe
Token: SeIncBasePriorityPrivilege	936	chargeable.exe
Token: 33	936	chargeable.exe
Token: SeIncBasePriorityPrivilege	936	chargeable.exe
Token: 33	936	chargeable.exe
Token: SeIncBasePriorityPrivilege	936	chargeable.exe
Token: 33	936	chargeable.exe
Token: SeIncBasePriorityPrivilege	936	chargeable.exe
Token: 33	936	chargeable.exe
Token: SeIncBasePriorityPrivilege	936	chargeable.exe
Token: 33	936	chargeable.exe
Token: SeIncBasePriorityPrivilege	936	chargeable.exe
Token: 33	936	chargeable.exe
Token: SeIncBasePriorityPrivilege	936	chargeable.exe
Token: 33	936	chargeable.exe
Token: SeIncBasePriorityPrivilege	936	chargeable.exe
Token: 33	936	chargeable.exe
Token: SeIncBasePriorityPrivilege	936	chargeable.exe
Token: 33	936	chargeable.exe
Token: SeIncBasePriorityPrivilege	936	chargeable.exe
Token: 33	936	chargeable.exe
Token: SeIncBasePriorityPrivilege	936	chargeable.exe
Token: 33	936	chargeable.exe
Token: SeIncBasePriorityPrivilege	936	chargeable.exe
Token: 33	936	chargeable.exe
Token: SeIncBasePriorityPrivilege	936	chargeable.exe
Token: 33	936	chargeable.exe
Token: SeIncBasePriorityPrivilege	936	chargeable.exe
Token: 33	936	chargeable.exe
Token: SeIncBasePriorityPrivilege	936	chargeable.exe
Token: 33	936	chargeable.exe
Token: SeIncBasePriorityPrivilege	936	chargeable.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 3236 wrote to memory of 4452	3236	5d4d2cb40386a5a31f997e2064ec803f.exe	90
PID 3236 wrote to memory of 4452	3236	5d4d2cb40386a5a31f997e2064ec803f.exe	90
PID 3236 wrote to memory of 4452	3236	5d4d2cb40386a5a31f997e2064ec803f.exe	90
PID 4452 wrote to memory of 936	4452	chargeable.exe	93
PID 4452 wrote to memory of 936	4452	chargeable.exe	93
PID 4452 wrote to memory of 936	4452	chargeable.exe	93
PID 4452 wrote to memory of 936	4452	chargeable.exe	93
PID 4452 wrote to memory of 936	4452	chargeable.exe	93
PID 4452 wrote to memory of 936	4452	chargeable.exe	93
PID 4452 wrote to memory of 936	4452	chargeable.exe	93
PID 4452 wrote to memory of 936	4452	chargeable.exe	93
PID 936 wrote to memory of 1580	936	chargeable.exe	94
PID 936 wrote to memory of 1580	936	chargeable.exe	94
PID 936 wrote to memory of 1580	936	chargeable.exe	94

C:\Users\Admin\AppData\Local\Temp\5d4d2cb40386a5a31f997e2064ec803f.exe
"C:\Users\Admin\AppData\Local\Temp\5d4d2cb40386a5a31f997e2064ec803f.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:3236
- 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:4452
- - 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:936
  - - 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:1580

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Defense Evasion

Impair Defenses

1

T1562

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\chargeable.exe.log

Filesize
400B

MD5
0a9b4592cd49c3c21f6767c2dabda92f

SHA1
f534297527ae5ccc0ecb2221ddeb8e58daeb8b74

SHA256
c7effe9cb81a70d738dee863991afefab040290d4c4b78b4202383bcb9f88fcd

SHA512
6b878df474e5bbfb8e9e265f15a76560c2ef151dcebc6388c82d7f6f86ffaf83f5ade5a09f1842e493cb6c8fd63b0b88d088c728fd725f7139f965a5ee332307

Download Submit
C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe

Filesize
116KB

MD5
dbbcbd7f385e40580d8c71511c215a79

SHA1
0b87c9a3e2df47c503198b11aeea541c682a6416

SHA256
d80ebd3a87847614860ae6e627f568a6e6c8b2d3776b0b4b6e4e512fe24ea4c5

SHA512
1d4fd5e1999f14149d5971e3bfb0c73563891ef2bf0accf19d3aab8e8655b0c3893b33e28a9f044cf3e4332e6a316beb3c17cc5ae8181ac2af3261483990bf9c

Download Submit
memory/936-21-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/936-25-0x0000000074880000-0x0000000074E31000-memory.dmp

Filesize
5.7MB

Download
memory/936-27-0x0000000074880000-0x0000000074E31000-memory.dmp

Filesize
5.7MB

Download
memory/936-28-0x0000000074880000-0x0000000074E31000-memory.dmp

Filesize
5.7MB

Download
memory/3236-2-0x0000000074880000-0x0000000074E31000-memory.dmp

Filesize
5.7MB

Download
memory/3236-0-0x0000000074882000-0x0000000074883000-memory.dmp

Filesize
4KB

Download
memory/3236-17-0x0000000074880000-0x0000000074E31000-memory.dmp

Filesize
5.7MB

Download
memory/3236-1-0x0000000074880000-0x0000000074E31000-memory.dmp

Filesize
5.7MB

Download
memory/4452-18-0x0000000074880000-0x0000000074E31000-memory.dmp

Filesize
5.7MB

Download
memory/4452-20-0x0000000074880000-0x0000000074E31000-memory.dmp

Filesize
5.7MB

Download
memory/4452-19-0x0000000074880000-0x0000000074E31000-memory.dmp

Filesize
5.7MB

Download
memory/4452-26-0x0000000074880000-0x0000000074E31000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads