njrat | 84faa407945e81b7ce708b39fdb4b7a0ae11b63d12f38f698193b975de4775a2

General

Target

84faa407945e81b7ce708b39fdb4b7a0ae11b63d12f38f698193b975de4775a2.exe
Size

158KB
MD5

a00ad941eea32fe3971a0b70da276bab
SHA1

9c12de462206b7376e3c08db7d1e9516b3e7a3de
SHA256

84faa407945e81b7ce708b39fdb4b7a0ae11b63d12f38f698193b975de4775a2
SHA512

5f6ccf620d0bca357e87ede9045c39ea9d9e42848469825b4a4f5ad7e4fbe383724efcc24ff3a9916326a2149a6960bbd5e67d19a17e44fedf1454517bcfbcfc
SSDEEP

3072:aF2ufrRcXi/6JIVPYHe0/b5cF4UQMnpW+uNa4YSgAjV/TTfFGsA:4frRD/VPwLG4YQacxPfFQ

Score

10^/10

njrat hacked evasion persistence trojan

Malware Config

Extracted

Family

njrat

Version

0.6.4

Botnet

HacKed

C2

127.0.0.1:1177

Mutex

5cd8f17f4086744065eb0992a09e05a2

Attributes

reg_key
5cd8f17f4086744065eb0992a09e05a2
splitter
|'|'|

Signatures

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

Processes:

Server.exeTrojan.exe

pid process

1292 Server.exe
1128 Trojan.exe
Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

1388 netsh.exe
Loads dropped DLL 2 IoCs

Processes:

84faa407945e81b7ce708b39fdb4b7a0ae11b63d12f38f698193b975de4775a2.exeServer.exe

pid process

896 84faa407945e81b7ce708b39fdb4b7a0ae11b63d12f38f698193b975de4775a2.exe
1292 Server.exe

pid	process
1292	Server.exe
1128	Trojan.exe

pid	process
1388	netsh.exe

pid	process
896	84faa407945e81b7ce708b39fdb4b7a0ae11b63d12f38f698193b975de4775a2.exe
1292	Server.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

Trojan.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\5cd8f17f4086744065eb0992a09e05a2 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Trojan.exe\" .."	Trojan.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\5cd8f17f4086744065eb0992a09e05a2 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Trojan.exe\" .."	Trojan.exe

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

System Information Discovery
T1082

Modifies registry class 10 IoCs

Processes:

rundll32.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_CLASSES\.CT	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_CLASSES\.CT\ = "CT_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_CLASSES\CT_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_CLASSES\CT_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_CLASSES\CT_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_CLASSES\CT_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\MuiCache	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_CLASSES\CT_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_CLASSES\CT_auto_file\shell	rundll32.exe

Suspicious behavior: EnumeratesProcesses 16 IoCs

Processes:

Trojan.exe

pid	process
1128	Trojan.exe
1128	Trojan.exe
1128	Trojan.exe
1128	Trojan.exe
1128	Trojan.exe
1128	Trojan.exe
1128	Trojan.exe
1128	Trojan.exe
1128	Trojan.exe
1128	Trojan.exe
1128	Trojan.exe
1128	Trojan.exe
1128	Trojan.exe
1128	Trojan.exe
1128	Trojan.exe
1128	Trojan.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

84faa407945e81b7ce708b39fdb4b7a0ae11b63d12f38f698193b975de4775a2.exeTrojan.exe

description	pid	process
Token: SeDebugPrivilege	896	84faa407945e81b7ce708b39fdb4b7a0ae11b63d12f38f698193b975de4775a2.exe
Token: SeDebugPrivilege	1128	Trojan.exe

Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

AcroRd32.exe

pid process

1252 AcroRd32.exe
1252 AcroRd32.exe
1252 AcroRd32.exe

pid	process
1252	AcroRd32.exe
1252	AcroRd32.exe
1252	AcroRd32.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

84faa407945e81b7ce708b39fdb4b7a0ae11b63d12f38f698193b975de4775a2.exeServer.exeTrojan.exerundll32.exe

description	pid	process	target process
PID 896 wrote to memory of 1292	896	84faa407945e81b7ce708b39fdb4b7a0ae11b63d12f38f698193b975de4775a2.exe	Server.exe
PID 896 wrote to memory of 1292	896	84faa407945e81b7ce708b39fdb4b7a0ae11b63d12f38f698193b975de4775a2.exe	Server.exe
PID 896 wrote to memory of 1292	896	84faa407945e81b7ce708b39fdb4b7a0ae11b63d12f38f698193b975de4775a2.exe	Server.exe
PID 896 wrote to memory of 1292	896	84faa407945e81b7ce708b39fdb4b7a0ae11b63d12f38f698193b975de4775a2.exe	Server.exe
PID 896 wrote to memory of 1480	896	84faa407945e81b7ce708b39fdb4b7a0ae11b63d12f38f698193b975de4775a2.exe	rundll32.exe
PID 896 wrote to memory of 1480	896	84faa407945e81b7ce708b39fdb4b7a0ae11b63d12f38f698193b975de4775a2.exe	rundll32.exe
PID 896 wrote to memory of 1480	896	84faa407945e81b7ce708b39fdb4b7a0ae11b63d12f38f698193b975de4775a2.exe	rundll32.exe
PID 896 wrote to memory of 1480	896	84faa407945e81b7ce708b39fdb4b7a0ae11b63d12f38f698193b975de4775a2.exe	rundll32.exe
PID 896 wrote to memory of 1480	896	84faa407945e81b7ce708b39fdb4b7a0ae11b63d12f38f698193b975de4775a2.exe	rundll32.exe
PID 896 wrote to memory of 1480	896	84faa407945e81b7ce708b39fdb4b7a0ae11b63d12f38f698193b975de4775a2.exe	rundll32.exe
PID 896 wrote to memory of 1480	896	84faa407945e81b7ce708b39fdb4b7a0ae11b63d12f38f698193b975de4775a2.exe	rundll32.exe
PID 1292 wrote to memory of 1128	1292	Server.exe	Trojan.exe
PID 1292 wrote to memory of 1128	1292	Server.exe	Trojan.exe
PID 1292 wrote to memory of 1128	1292	Server.exe	Trojan.exe
PID 1292 wrote to memory of 1128	1292	Server.exe	Trojan.exe
PID 1128 wrote to memory of 1388	1128	Trojan.exe	netsh.exe
PID 1128 wrote to memory of 1388	1128	Trojan.exe	netsh.exe
PID 1128 wrote to memory of 1388	1128	Trojan.exe	netsh.exe
PID 1128 wrote to memory of 1388	1128	Trojan.exe	netsh.exe
PID 1480 wrote to memory of 1252	1480	rundll32.exe	AcroRd32.exe
PID 1480 wrote to memory of 1252	1480	rundll32.exe	AcroRd32.exe
PID 1480 wrote to memory of 1252	1480	rundll32.exe	AcroRd32.exe
PID 1480 wrote to memory of 1252	1480	rundll32.exe	AcroRd32.exe

C:\Users\Admin\AppData\Local\Temp\84faa407945e81b7ce708b39fdb4b7a0ae11b63d12f38f698193b975de4775a2.exe
"C:\Users\Admin\AppData\Local\Temp\84faa407945e81b7ce708b39fdb4b7a0ae11b63d12f38f698193b975de4775a2.exe"
1⤵
- Loads dropped DLL
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:896

C:\Users\Admin\AppData\Local\Temp\Server.exe
"C:\Users\Admin\AppData\Local\Temp\Server.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1292

C:\Users\Admin\AppData\Local\Temp\Trojan.exe
"C:\Users\Admin\AppData\Local\Temp\Trojan.exe"
3⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1128

C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\Trojan.exe" "Trojan.exe" ENABLE
4⤵
- Modifies Windows Firewall
PID:1388

C:\Windows\SysWOW64\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\BRWA.CT
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1480

C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
"C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Local\Temp\BRWA.CT"
3⤵
- Suspicious use of SetWindowsHookEx
PID:1252

Network

MITRE ATT&CK Enterprise 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

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\BRWA.CT

Filesize
77KB

MD5
70861cb040026bc17ab842e8ea8c7ef3

SHA1
cf1a1809d0fea024b70aa2443ec1849578040f4d

SHA256
b81fb5b8bab80ea163c5ae864ca4c3092497e93528658546a58698820782572d

SHA512
108b63ca61b501ee3e2dc2ef57565b1efcc730cc422992664f24f14e9d61f81740319674e8f1b3ad240466b513796c419d144fb52002fcb5cb826fd57f4f1f72

Download Submit
C:\Users\Admin\AppData\Local\Temp\Server.exe

Filesize
29KB

MD5
a75141ad736ce206006ce3a583a40a0d

SHA1
9455d0825e4f1223e7d1daa24818127772f52576

SHA256
57706cffa6acba587e24e955ce353d9bb3210d06f3300ba367d044cb26541707

SHA512
85ed3bf7dea18fc4469ef286f728e5b9ad00973916707da94650650ed3b0f2aefa0a1a7f822613828965a555fa33ed85ddfe59cfb241c08177bedb1072674e47

Download Submit
C:\Users\Admin\AppData\Local\Temp\Server.exe

Filesize
29KB

MD5
a75141ad736ce206006ce3a583a40a0d

SHA1
9455d0825e4f1223e7d1daa24818127772f52576

SHA256
57706cffa6acba587e24e955ce353d9bb3210d06f3300ba367d044cb26541707

SHA512
85ed3bf7dea18fc4469ef286f728e5b9ad00973916707da94650650ed3b0f2aefa0a1a7f822613828965a555fa33ed85ddfe59cfb241c08177bedb1072674e47

Download Submit
C:\Users\Admin\AppData\Local\Temp\Trojan.exe

Filesize
29KB

MD5
a75141ad736ce206006ce3a583a40a0d

SHA1
9455d0825e4f1223e7d1daa24818127772f52576

SHA256
57706cffa6acba587e24e955ce353d9bb3210d06f3300ba367d044cb26541707

SHA512
85ed3bf7dea18fc4469ef286f728e5b9ad00973916707da94650650ed3b0f2aefa0a1a7f822613828965a555fa33ed85ddfe59cfb241c08177bedb1072674e47

Download Submit
C:\Users\Admin\AppData\Local\Temp\Trojan.exe

Filesize
29KB

MD5
a75141ad736ce206006ce3a583a40a0d

SHA1
9455d0825e4f1223e7d1daa24818127772f52576

SHA256
57706cffa6acba587e24e955ce353d9bb3210d06f3300ba367d044cb26541707

SHA512
85ed3bf7dea18fc4469ef286f728e5b9ad00973916707da94650650ed3b0f2aefa0a1a7f822613828965a555fa33ed85ddfe59cfb241c08177bedb1072674e47

Download Submit
\Users\Admin\AppData\Local\Temp\Server.exe

Filesize
29KB

MD5
a75141ad736ce206006ce3a583a40a0d

SHA1
9455d0825e4f1223e7d1daa24818127772f52576

SHA256
57706cffa6acba587e24e955ce353d9bb3210d06f3300ba367d044cb26541707

SHA512
85ed3bf7dea18fc4469ef286f728e5b9ad00973916707da94650650ed3b0f2aefa0a1a7f822613828965a555fa33ed85ddfe59cfb241c08177bedb1072674e47

Download Submit
\Users\Admin\AppData\Local\Temp\Trojan.exe

Filesize
29KB

MD5
a75141ad736ce206006ce3a583a40a0d

SHA1
9455d0825e4f1223e7d1daa24818127772f52576

SHA256
57706cffa6acba587e24e955ce353d9bb3210d06f3300ba367d044cb26541707

SHA512
85ed3bf7dea18fc4469ef286f728e5b9ad00973916707da94650650ed3b0f2aefa0a1a7f822613828965a555fa33ed85ddfe59cfb241c08177bedb1072674e47

Download Submit
memory/896-55-0x0000000075B41000-0x0000000075B43000-memory.dmp

Filesize
8KB

Download
memory/896-54-0x0000000001030000-0x000000000103C000-memory.dmp

Filesize
48KB

Download
memory/1128-64-0x0000000000000000-mapping.dmp

Download
memory/1128-70-0x000000006FA50000-0x000000006FFFB000-memory.dmp

Filesize
5.7MB

Download
memory/1128-75-0x000000006FA50000-0x000000006FFFB000-memory.dmp

Filesize
5.7MB

Download
memory/1252-71-0x0000000000000000-mapping.dmp

Download
memory/1292-69-0x000000006FA50000-0x000000006FFFB000-memory.dmp

Filesize
5.7MB

Download
memory/1292-57-0x0000000000000000-mapping.dmp

Download
memory/1388-68-0x0000000000000000-mapping.dmp

Download
memory/1480-60-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads