njrat | e921d5f11cbdb49edbc84df43345e162f6c949e717afee3404ca5605c550c69d

General

Target

e921d5f11cbdb49edbc84df43345e162f6c949e717afee3404ca5605c550c69d.exe
Size

863KB
MD5

61cc86c500d27fb8ee7cdcbf3f51654e
SHA1

da823449b046aabc24d82519619235e4800dfd22
SHA256

e921d5f11cbdb49edbc84df43345e162f6c949e717afee3404ca5605c550c69d
SHA512

2a5d6ea3516c248a4f87ceb877417320e0324f80c8177d944f64f999724d9a4af334b5bc581bf00e4f1b49d30dab4f8bb516514eb4be6d673b5c30e35e4e5384

Score

10^/10

njrat hacked evasion persistence trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

C2

10.10.10.10:4444

Mutex

68746e5f270d3b8fbd6f47be0fcb6282

Attributes

reg_key
68746e5f270d3b8fbd6f47be0fcb6282
splitter
|'|'|

Signatures

UAC bypass 3 TTPs
evasion trojan

Bypass User Account Control
T1088

Disabling Security Tools
T1089

Modify Registry
T1112
njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat
Executes dropped EXE 2 IoCs

Processes:

770.exeserver.exe

pid process

844 770.exe
1296 server.exe
Modifies Windows Firewall 1 TTPs
evasion

Modify Existing Service
T1031

pid	process
844	770.exe
1296	server.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

server.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Windows\CurrentVersion\Run\68746e5f270d3b8fbd6f47be0fcb6282 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\68746e5f270d3b8fbd6f47be0fcb6282 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

e921d5f11cbdb49edbc84df43345e162f6c949e717afee3404ca5605c550c69d.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	e921d5f11cbdb49edbc84df43345e162f6c949e717afee3404ca5605c550c69d.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 33 IoCs

Processes:

server.exe

description	pid	process
Token: SeDebugPrivilege	1296	server.exe
Token: 33	1296	server.exe
Token: SeIncBasePriorityPrivilege	1296	server.exe
Token: 33	1296	server.exe
Token: SeIncBasePriorityPrivilege	1296	server.exe
Token: 33	1296	server.exe
Token: SeIncBasePriorityPrivilege	1296	server.exe
Token: 33	1296	server.exe
Token: SeIncBasePriorityPrivilege	1296	server.exe
Token: 33	1296	server.exe
Token: SeIncBasePriorityPrivilege	1296	server.exe
Token: 33	1296	server.exe
Token: SeIncBasePriorityPrivilege	1296	server.exe
Token: 33	1296	server.exe
Token: SeIncBasePriorityPrivilege	1296	server.exe
Token: 33	1296	server.exe
Token: SeIncBasePriorityPrivilege	1296	server.exe
Token: 33	1296	server.exe
Token: SeIncBasePriorityPrivilege	1296	server.exe
Token: 33	1296	server.exe
Token: SeIncBasePriorityPrivilege	1296	server.exe
Token: 33	1296	server.exe
Token: SeIncBasePriorityPrivilege	1296	server.exe
Token: 33	1296	server.exe
Token: SeIncBasePriorityPrivilege	1296	server.exe
Token: 33	1296	server.exe
Token: SeIncBasePriorityPrivilege	1296	server.exe
Token: 33	1296	server.exe
Token: SeIncBasePriorityPrivilege	1296	server.exe
Token: 33	1296	server.exe
Token: SeIncBasePriorityPrivilege	1296	server.exe
Token: 33	1296	server.exe
Token: SeIncBasePriorityPrivilege	1296	server.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

e921d5f11cbdb49edbc84df43345e162f6c949e717afee3404ca5605c550c69d.exe770.exeserver.exe

description	pid	process	target process
PID 568 wrote to memory of 844	568	e921d5f11cbdb49edbc84df43345e162f6c949e717afee3404ca5605c550c69d.exe	770.exe
PID 568 wrote to memory of 844	568	e921d5f11cbdb49edbc84df43345e162f6c949e717afee3404ca5605c550c69d.exe	770.exe
PID 568 wrote to memory of 844	568	e921d5f11cbdb49edbc84df43345e162f6c949e717afee3404ca5605c550c69d.exe	770.exe
PID 844 wrote to memory of 1296	844	770.exe	server.exe
PID 844 wrote to memory of 1296	844	770.exe	server.exe
PID 844 wrote to memory of 1296	844	770.exe	server.exe
PID 1296 wrote to memory of 1604	1296	server.exe	netsh.exe
PID 1296 wrote to memory of 1604	1296	server.exe	netsh.exe
PID 1296 wrote to memory of 1604	1296	server.exe	netsh.exe

System policy modification 1 TTPs 3 IoCs

evasion

Modify Registry

T1112

Processes:

e921d5f11cbdb49edbc84df43345e162f6c949e717afee3404ca5605c550c69d.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System	e921d5f11cbdb49edbc84df43345e162f6c949e717afee3404ca5605c550c69d.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	e921d5f11cbdb49edbc84df43345e162f6c949e717afee3404ca5605c550c69d.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	e921d5f11cbdb49edbc84df43345e162f6c949e717afee3404ca5605c550c69d.exe

C:\Users\Admin\AppData\Local\Temp\e921d5f11cbdb49edbc84df43345e162f6c949e717afee3404ca5605c550c69d.exe
"C:\Users\Admin\AppData\Local\Temp\e921d5f11cbdb49edbc84df43345e162f6c949e717afee3404ca5605c550c69d.exe"
1⤵
- Checks whether UAC is enabled
- Suspicious use of WriteProcessMemory
- System policy modification
PID:568

C:\Users\Admin\AppData\Local\Temp\770\770.exe
"C:\Users\Admin\AppData\Local\Temp\770\770.exe"
2⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:844

C:\Users\Admin\AppData\Local\Temp\server.exe
"C:\Users\Admin\AppData\Local\Temp\server.exe"
3⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1296

C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
4⤵
PID:1604

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

Bypass User Account Control

1

T1088

Defense Evasion

Bypass User Account Control

1

T1088

Disabling Security Tools

1

T1089

Modify Registry

3

T1112

Credential Access

Discovery

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\770\770.exe
MD5
4506244e1fd59105f141974d41d51b9a

SHA1
8c94b021ccda8cf5145e027488d9efdc6a8dd769

SHA256
01abc93f3bbc098b1b6444842c2fcd20dde15f3cd7b20d84704d081641d88556

SHA512
c945e243272d2ba7e1bae44c6fb105d33519e7813079d8e982fbec46ba9373f964711e3dcb5665d87cb3ac9523e22edf2b668efd8e14bee91d501d63aa97fe50

Download Submit
C:\Users\Admin\AppData\Local\Temp\770\770.exe
MD5
4506244e1fd59105f141974d41d51b9a

SHA1
8c94b021ccda8cf5145e027488d9efdc6a8dd769

SHA256
01abc93f3bbc098b1b6444842c2fcd20dde15f3cd7b20d84704d081641d88556

SHA512
c945e243272d2ba7e1bae44c6fb105d33519e7813079d8e982fbec46ba9373f964711e3dcb5665d87cb3ac9523e22edf2b668efd8e14bee91d501d63aa97fe50

Download Submit
C:\Users\Admin\AppData\Local\Temp\server.exe
MD5
4506244e1fd59105f141974d41d51b9a

SHA1
8c94b021ccda8cf5145e027488d9efdc6a8dd769

SHA256
01abc93f3bbc098b1b6444842c2fcd20dde15f3cd7b20d84704d081641d88556

SHA512
c945e243272d2ba7e1bae44c6fb105d33519e7813079d8e982fbec46ba9373f964711e3dcb5665d87cb3ac9523e22edf2b668efd8e14bee91d501d63aa97fe50

Download Submit
C:\Users\Admin\AppData\Local\Temp\server.exe
MD5
4506244e1fd59105f141974d41d51b9a

SHA1
8c94b021ccda8cf5145e027488d9efdc6a8dd769

SHA256
01abc93f3bbc098b1b6444842c2fcd20dde15f3cd7b20d84704d081641d88556

SHA512
c945e243272d2ba7e1bae44c6fb105d33519e7813079d8e982fbec46ba9373f964711e3dcb5665d87cb3ac9523e22edf2b668efd8e14bee91d501d63aa97fe50

Download Submit
memory/844-114-0x0000000000000000-mapping.dmp

Download
memory/844-117-0x0000000000B90000-0x0000000000B91000-memory.dmp

Filesize
4KB

Download
memory/1296-118-0x0000000000000000-mapping.dmp

Download
memory/1296-121-0x0000000000CC0000-0x0000000000CC1000-memory.dmp

Filesize
4KB

Download
memory/1604-122-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads