njrat | b94c29371fee73f3606612ecb8f05bb3bd3baea5346fc2871190f5f86c60cba3

General

Target

b94c29371fee73f3606612ecb8f05bb3bd3baea5346fc2871190f5f86c60cba3.exe
Size

711KB
MD5

65850d7a846095315f2a9dd3dd637800
SHA1

544884f39b430caafe411538a6f42125fe1f0eef
SHA256

b94c29371fee73f3606612ecb8f05bb3bd3baea5346fc2871190f5f86c60cba3
SHA512

9a642bd43b45b588af6b35bd3ee749d0c5851de41775dc4c397fd2e7897fbf21e52ebfb7ffbf3571e89c401caa8c5d3b7b93714d9f17da72785d8ecab465b8c2
SSDEEP

12288:H9fqw6NEeEZaJLeO4M5r1J5gD0ce4XRiJncTL4lZWzuaUA8Dq/LZJTC0Qn7dDWK:dfqw6NEeyaJLEQJ6QceGRMnULcLU8Dq8

Score

10^/10

njrat windows_up evasion persistence trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

windows_up

C2

kixeye20071.no-ip.biz:1177

Mutex

49c00edc9f4c394fe7914f370bfa072e

Attributes

reg_key
49c00edc9f4c394fe7914f370bfa072e
splitter
|'|'|

Signatures

njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat
Executes dropped EXE 3 IoCs

Processes:

EVENT HACK.EXESERVER.EXEwindows_up.exe

pid process

3744 EVENT HACK.EXE
8 SERVER.EXE
1340 windows_up.exe
Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

3756 netsh.exe

pid	process
3744	EVENT HACK.EXE
8	SERVER.EXE
1340	windows_up.exe

pid	process
3756	netsh.exe

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

b94c29371fee73f3606612ecb8f05bb3bd3baea5346fc2871190f5f86c60cba3.exeSERVER.EXE

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	b94c29371fee73f3606612ecb8f05bb3bd3baea5346fc2871190f5f86c60cba3.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	SERVER.EXE

Drops startup file 2 IoCs

Processes:

windows_up.exe

description	ioc	process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\49c00edc9f4c394fe7914f370bfa072e.exe	windows_up.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\49c00edc9f4c394fe7914f370bfa072e.exe	windows_up.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

windows_up.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\49c00edc9f4c394fe7914f370bfa072e = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\windows_up.exe\" .."	windows_up.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\49c00edc9f4c394fe7914f370bfa072e = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\windows_up.exe\" .."	windows_up.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

b94c29371fee73f3606612ecb8f05bb3bd3baea5346fc2871190f5f86c60cba3.exe

description	pid	process	target process
PID 4288 set thread context of 1308	4288	b94c29371fee73f3606612ecb8f05bb3bd3baea5346fc2871190f5f86c60cba3.exe	b94c29371fee73f3606612ecb8f05bb3bd3baea5346fc2871190f5f86c60cba3.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

b94c29371fee73f3606612ecb8f05bb3bd3baea5346fc2871190f5f86c60cba3.exe

pid	process
4288	b94c29371fee73f3606612ecb8f05bb3bd3baea5346fc2871190f5f86c60cba3.exe
4288	b94c29371fee73f3606612ecb8f05bb3bd3baea5346fc2871190f5f86c60cba3.exe
4288	b94c29371fee73f3606612ecb8f05bb3bd3baea5346fc2871190f5f86c60cba3.exe

Suspicious use of AdjustPrivilegeToken 26 IoCs

Processes:

b94c29371fee73f3606612ecb8f05bb3bd3baea5346fc2871190f5f86c60cba3.exewindows_up.exe

description	pid	process
Token: SeDebugPrivilege	4288	b94c29371fee73f3606612ecb8f05bb3bd3baea5346fc2871190f5f86c60cba3.exe
Token: SeDebugPrivilege	1340	windows_up.exe
Token: 33	1340	windows_up.exe
Token: SeIncBasePriorityPrivilege	1340	windows_up.exe
Token: 33	1340	windows_up.exe
Token: SeIncBasePriorityPrivilege	1340	windows_up.exe
Token: 33	1340	windows_up.exe
Token: SeIncBasePriorityPrivilege	1340	windows_up.exe
Token: 33	1340	windows_up.exe
Token: SeIncBasePriorityPrivilege	1340	windows_up.exe
Token: 33	1340	windows_up.exe
Token: SeIncBasePriorityPrivilege	1340	windows_up.exe
Token: 33	1340	windows_up.exe
Token: SeIncBasePriorityPrivilege	1340	windows_up.exe
Token: 33	1340	windows_up.exe
Token: SeIncBasePriorityPrivilege	1340	windows_up.exe
Token: 33	1340	windows_up.exe
Token: SeIncBasePriorityPrivilege	1340	windows_up.exe
Token: 33	1340	windows_up.exe
Token: SeIncBasePriorityPrivilege	1340	windows_up.exe
Token: 33	1340	windows_up.exe
Token: SeIncBasePriorityPrivilege	1340	windows_up.exe
Token: 33	1340	windows_up.exe
Token: SeIncBasePriorityPrivilege	1340	windows_up.exe
Token: 33	1340	windows_up.exe
Token: SeIncBasePriorityPrivilege	1340	windows_up.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

b94c29371fee73f3606612ecb8f05bb3bd3baea5346fc2871190f5f86c60cba3.exeb94c29371fee73f3606612ecb8f05bb3bd3baea5346fc2871190f5f86c60cba3.exeSERVER.EXEwindows_up.exe

description	pid	process	target process
PID 4288 wrote to memory of 1308	4288	b94c29371fee73f3606612ecb8f05bb3bd3baea5346fc2871190f5f86c60cba3.exe	b94c29371fee73f3606612ecb8f05bb3bd3baea5346fc2871190f5f86c60cba3.exe
PID 4288 wrote to memory of 1308	4288	b94c29371fee73f3606612ecb8f05bb3bd3baea5346fc2871190f5f86c60cba3.exe	b94c29371fee73f3606612ecb8f05bb3bd3baea5346fc2871190f5f86c60cba3.exe
PID 4288 wrote to memory of 1308	4288	b94c29371fee73f3606612ecb8f05bb3bd3baea5346fc2871190f5f86c60cba3.exe	b94c29371fee73f3606612ecb8f05bb3bd3baea5346fc2871190f5f86c60cba3.exe
PID 4288 wrote to memory of 1308	4288	b94c29371fee73f3606612ecb8f05bb3bd3baea5346fc2871190f5f86c60cba3.exe	b94c29371fee73f3606612ecb8f05bb3bd3baea5346fc2871190f5f86c60cba3.exe
PID 4288 wrote to memory of 1308	4288	b94c29371fee73f3606612ecb8f05bb3bd3baea5346fc2871190f5f86c60cba3.exe	b94c29371fee73f3606612ecb8f05bb3bd3baea5346fc2871190f5f86c60cba3.exe
PID 1308 wrote to memory of 3744	1308	b94c29371fee73f3606612ecb8f05bb3bd3baea5346fc2871190f5f86c60cba3.exe	EVENT HACK.EXE
PID 1308 wrote to memory of 3744	1308	b94c29371fee73f3606612ecb8f05bb3bd3baea5346fc2871190f5f86c60cba3.exe	EVENT HACK.EXE
PID 1308 wrote to memory of 3744	1308	b94c29371fee73f3606612ecb8f05bb3bd3baea5346fc2871190f5f86c60cba3.exe	EVENT HACK.EXE
PID 1308 wrote to memory of 8	1308	b94c29371fee73f3606612ecb8f05bb3bd3baea5346fc2871190f5f86c60cba3.exe	SERVER.EXE
PID 1308 wrote to memory of 8	1308	b94c29371fee73f3606612ecb8f05bb3bd3baea5346fc2871190f5f86c60cba3.exe	SERVER.EXE
PID 1308 wrote to memory of 8	1308	b94c29371fee73f3606612ecb8f05bb3bd3baea5346fc2871190f5f86c60cba3.exe	SERVER.EXE
PID 8 wrote to memory of 1340	8	SERVER.EXE	windows_up.exe
PID 8 wrote to memory of 1340	8	SERVER.EXE	windows_up.exe
PID 8 wrote to memory of 1340	8	SERVER.EXE	windows_up.exe
PID 1340 wrote to memory of 3756	1340	windows_up.exe	netsh.exe
PID 1340 wrote to memory of 3756	1340	windows_up.exe	netsh.exe
PID 1340 wrote to memory of 3756	1340	windows_up.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\b94c29371fee73f3606612ecb8f05bb3bd3baea5346fc2871190f5f86c60cba3.exe
"C:\Users\Admin\AppData\Local\Temp\b94c29371fee73f3606612ecb8f05bb3bd3baea5346fc2871190f5f86c60cba3.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4288

C:\Users\Admin\AppData\Local\Temp\b94c29371fee73f3606612ecb8f05bb3bd3baea5346fc2871190f5f86c60cba3.exe
C:\Users\Admin\AppData\Local\Temp\b94c29371fee73f3606612ecb8f05bb3bd3baea5346fc2871190f5f86c60cba3.exe
2⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1308

C:\Users\Admin\AppData\Local\Temp\EVENT HACK.EXE
"C:\Users\Admin\AppData\Local\Temp\EVENT HACK.EXE"
3⤵
- Executes dropped EXE
PID:3744

C:\Users\Admin\AppData\Local\Temp\SERVER.EXE
"C:\Users\Admin\AppData\Local\Temp\SERVER.EXE"
3⤵
- Executes dropped EXE
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:8

C:\Users\Admin\AppData\Local\Temp\windows_up.exe
"C:\Users\Admin\AppData\Local\Temp\windows_up.exe"
4⤵
- Executes dropped EXE
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1340

C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\windows_up.exe" "windows_up.exe" ENABLE
5⤵
- Modifies Windows Firewall
PID:3756

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

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\EVENT HACK.EXE
Filesize
386KB

MD5
8978748db15c44115a7313094919fe3f

SHA1
16b371c1543b69a2d740b02fd6ec122e25989d0d

SHA256
2304e36c33351247546e3e3b490ed637b074a6b9d7fe648e3737b2bcabf0e73a

SHA512
613f7779679f0955f27742ffefe4192983cd350cdfc73704dd192a62027de0c8ceab6304d9903f74206f4126a5fca253b2b1a35188693dcadc79f63c126ac11b

Download Submit
C:\Users\Admin\AppData\Local\Temp\EVENT HACK.EXE
Filesize
386KB

MD5
8978748db15c44115a7313094919fe3f

SHA1
16b371c1543b69a2d740b02fd6ec122e25989d0d

SHA256
2304e36c33351247546e3e3b490ed637b074a6b9d7fe648e3737b2bcabf0e73a

SHA512
613f7779679f0955f27742ffefe4192983cd350cdfc73704dd192a62027de0c8ceab6304d9903f74206f4126a5fca253b2b1a35188693dcadc79f63c126ac11b

Download Submit
C:\Users\Admin\AppData\Local\Temp\SERVER.EXE
Filesize
23KB

MD5
236d66ea997600e985ee76eceef44c50

SHA1
a9804f61436ee0d131a0988743e0a2dbc639454e

SHA256
16f66f39c25d520bdc9bd6f99f34a1298bc206a244acf37b29d19d04c816d797

SHA512
ed1bc90fa2cded0575779bb2503f4a51a287ecc48674eec3abd8310c4dce9cb88856cd8a620226caca0f39edc2c62e5aa737e747fc1efec6f57f217bd3f546bb

Download Submit
C:\Users\Admin\AppData\Local\Temp\SERVER.EXE
Filesize
23KB

MD5
236d66ea997600e985ee76eceef44c50

SHA1
a9804f61436ee0d131a0988743e0a2dbc639454e

SHA256
16f66f39c25d520bdc9bd6f99f34a1298bc206a244acf37b29d19d04c816d797

SHA512
ed1bc90fa2cded0575779bb2503f4a51a287ecc48674eec3abd8310c4dce9cb88856cd8a620226caca0f39edc2c62e5aa737e747fc1efec6f57f217bd3f546bb

Download Submit
C:\Users\Admin\AppData\Local\Temp\windows_up.exe
Filesize
23KB

MD5
236d66ea997600e985ee76eceef44c50

SHA1
a9804f61436ee0d131a0988743e0a2dbc639454e

SHA256
16f66f39c25d520bdc9bd6f99f34a1298bc206a244acf37b29d19d04c816d797

SHA512
ed1bc90fa2cded0575779bb2503f4a51a287ecc48674eec3abd8310c4dce9cb88856cd8a620226caca0f39edc2c62e5aa737e747fc1efec6f57f217bd3f546bb

Download Submit
C:\Users\Admin\AppData\Local\Temp\windows_up.exe
Filesize
23KB

MD5
236d66ea997600e985ee76eceef44c50

SHA1
a9804f61436ee0d131a0988743e0a2dbc639454e

SHA256
16f66f39c25d520bdc9bd6f99f34a1298bc206a244acf37b29d19d04c816d797

SHA512
ed1bc90fa2cded0575779bb2503f4a51a287ecc48674eec3abd8310c4dce9cb88856cd8a620226caca0f39edc2c62e5aa737e747fc1efec6f57f217bd3f546bb

Download Submit
memory/8-153-0x000000006F290000-0x000000006F841000-memory.dmp

Filesize
5.7MB

Download
memory/8-149-0x000000006F290000-0x000000006F841000-memory.dmp

Filesize
5.7MB

Download
memory/8-145-0x0000000000000000-mapping.dmp

Download
memory/1308-138-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1308-137-0x0000000000000000-mapping.dmp

Download
memory/1308-141-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1308-140-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1308-139-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1308-148-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1340-150-0x0000000000000000-mapping.dmp

Download
memory/1340-154-0x000000006F290000-0x000000006F841000-memory.dmp

Filesize
5.7MB

Download
memory/1340-156-0x000000006F290000-0x000000006F841000-memory.dmp

Filesize
5.7MB

Download
memory/3744-142-0x0000000000000000-mapping.dmp

Download
memory/3756-155-0x0000000000000000-mapping.dmp

Download
memory/4288-132-0x00000000009F0000-0x0000000000AA8000-memory.dmp

Filesize
736KB

Download
memory/4288-136-0x000000000A470000-0x000000000A50C000-memory.dmp

Filesize
624KB

Download
memory/4288-135-0x00000000054F0000-0x00000000054FA000-memory.dmp

Filesize
40KB

Download
memory/4288-134-0x0000000008000000-0x0000000008092000-memory.dmp

Filesize
584KB

Download
memory/4288-133-0x00000000085B0000-0x0000000008B54000-memory.dmp

Filesize
5.6MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads