njrat | 7dd9f3b22d6e7a0e7b0382411378cc16b47346107d5ee9e0b05444924d6e0b23

General

Target

7dd9f3b22d6e7a0e7b0382411378cc16b47346107d5ee9e0b05444924d6e0b23.exe
Size

190KB
MD5

2eb276e7f41a865dfea0f9e3a2a2fae5
SHA1

653bb0ebbb80c78bfac46f2b3c80f8e41bba4a2b
SHA256

7dd9f3b22d6e7a0e7b0382411378cc16b47346107d5ee9e0b05444924d6e0b23
SHA512

98dc29bd8fcf3bee0bf79913cefdf7154d2908053a79c99b076540e46c566db882c1e957e49c84e63436662ab9387efede0e44091fe76001ef728fe9a2ae8c58
SSDEEP

1536:zOmhuiRWuQlPoIA3IWwgmbbdbcpkvYDyUbSO:Kmhp0E+WwgQbdbcpkvlaS

Score

10^/10

njrat khamsat evasion persistence trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

KHAMSAT

C2

rerereka.zapto.org:1177

Mutex

d751b26fa4a030fced29b42979a1cf5b

Attributes

reg_key
d751b26fa4a030fced29b42979a1cf5b
splitter
|'|'|

Signatures

njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat
Executes dropped EXE 1 IoCs

Processes:

Dollar.exe

pid process

924 Dollar.exe
Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

1280 netsh.exe
Loads dropped DLL 1 IoCs

Processes:

7dd9f3b22d6e7a0e7b0382411378cc16b47346107d5ee9e0b05444924d6e0b23.exe

pid process

600 7dd9f3b22d6e7a0e7b0382411378cc16b47346107d5ee9e0b05444924d6e0b23.exe

pid	process
924	Dollar.exe

pid	process
1280	netsh.exe

pid	process
600	7dd9f3b22d6e7a0e7b0382411378cc16b47346107d5ee9e0b05444924d6e0b23.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

Dollar.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\d751b26fa4a030fced29b42979a1cf5b = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Dollar.exe\" .."	Dollar.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\d751b26fa4a030fced29b42979a1cf5b = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Dollar.exe\" .."	Dollar.exe

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 11 IoCs

Processes:

Dollar.exe

description	pid	process
Token: SeDebugPrivilege	924	Dollar.exe
Token: 33	924	Dollar.exe
Token: SeIncBasePriorityPrivilege	924	Dollar.exe
Token: 33	924	Dollar.exe
Token: SeIncBasePriorityPrivilege	924	Dollar.exe
Token: 33	924	Dollar.exe
Token: SeIncBasePriorityPrivilege	924	Dollar.exe
Token: 33	924	Dollar.exe
Token: SeIncBasePriorityPrivilege	924	Dollar.exe
Token: 33	924	Dollar.exe
Token: SeIncBasePriorityPrivilege	924	Dollar.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

7dd9f3b22d6e7a0e7b0382411378cc16b47346107d5ee9e0b05444924d6e0b23.exeDollar.exe

description	pid	process	target process
PID 600 wrote to memory of 924	600	7dd9f3b22d6e7a0e7b0382411378cc16b47346107d5ee9e0b05444924d6e0b23.exe	Dollar.exe
PID 600 wrote to memory of 924	600	7dd9f3b22d6e7a0e7b0382411378cc16b47346107d5ee9e0b05444924d6e0b23.exe	Dollar.exe
PID 600 wrote to memory of 924	600	7dd9f3b22d6e7a0e7b0382411378cc16b47346107d5ee9e0b05444924d6e0b23.exe	Dollar.exe
PID 600 wrote to memory of 924	600	7dd9f3b22d6e7a0e7b0382411378cc16b47346107d5ee9e0b05444924d6e0b23.exe	Dollar.exe
PID 924 wrote to memory of 1280	924	Dollar.exe	netsh.exe
PID 924 wrote to memory of 1280	924	Dollar.exe	netsh.exe
PID 924 wrote to memory of 1280	924	Dollar.exe	netsh.exe
PID 924 wrote to memory of 1280	924	Dollar.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\7dd9f3b22d6e7a0e7b0382411378cc16b47346107d5ee9e0b05444924d6e0b23.exe
"C:\Users\Admin\AppData\Local\Temp\7dd9f3b22d6e7a0e7b0382411378cc16b47346107d5ee9e0b05444924d6e0b23.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:600

C:\Users\Admin\AppData\Local\Temp\Dollar.exe
"C:\Users\Admin\AppData\Local\Temp\Dollar.exe"
2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:924

C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\Dollar.exe" "Dollar.exe" ENABLE
3⤵
- Modifies Windows Firewall
PID:1280

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Modify Existing Service

1

T1031

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\Dollar.exe
Filesize
190KB

MD5
2eb276e7f41a865dfea0f9e3a2a2fae5

SHA1
653bb0ebbb80c78bfac46f2b3c80f8e41bba4a2b

SHA256
7dd9f3b22d6e7a0e7b0382411378cc16b47346107d5ee9e0b05444924d6e0b23

SHA512
98dc29bd8fcf3bee0bf79913cefdf7154d2908053a79c99b076540e46c566db882c1e957e49c84e63436662ab9387efede0e44091fe76001ef728fe9a2ae8c58

Download Submit
C:\Users\Admin\AppData\Local\Temp\Dollar.exe
Filesize
190KB

MD5
2eb276e7f41a865dfea0f9e3a2a2fae5

SHA1
653bb0ebbb80c78bfac46f2b3c80f8e41bba4a2b

SHA256
7dd9f3b22d6e7a0e7b0382411378cc16b47346107d5ee9e0b05444924d6e0b23

SHA512
98dc29bd8fcf3bee0bf79913cefdf7154d2908053a79c99b076540e46c566db882c1e957e49c84e63436662ab9387efede0e44091fe76001ef728fe9a2ae8c58

Download Submit
\Users\Admin\AppData\Local\Temp\Dollar.exe
Filesize
190KB

MD5
2eb276e7f41a865dfea0f9e3a2a2fae5

SHA1
653bb0ebbb80c78bfac46f2b3c80f8e41bba4a2b

SHA256
7dd9f3b22d6e7a0e7b0382411378cc16b47346107d5ee9e0b05444924d6e0b23

SHA512
98dc29bd8fcf3bee0bf79913cefdf7154d2908053a79c99b076540e46c566db882c1e957e49c84e63436662ab9387efede0e44091fe76001ef728fe9a2ae8c58

Download Submit
memory/600-54-0x0000000075151000-0x0000000075153000-memory.dmp

Filesize
8KB

Download
memory/600-55-0x0000000074060000-0x000000007460B000-memory.dmp

Filesize
5.7MB

Download
memory/600-61-0x0000000074060000-0x000000007460B000-memory.dmp

Filesize
5.7MB

Download
memory/924-57-0x0000000000000000-mapping.dmp

Download
memory/924-62-0x0000000074060000-0x000000007460B000-memory.dmp

Filesize
5.7MB

Download
memory/924-64-0x0000000074060000-0x000000007460B000-memory.dmp

Filesize
5.7MB

Download
memory/1280-63-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads