njrat | 4a02577098ef335a6f51ef9af0ec133bfdcf042b28faaea4c9ea533ed9585d83

Analysis

max time kernel
4294211s
max time network
150s
platform
windows7_x64
resource
win7-20220311-en
submitted
26-03-2022 16:04

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General

Target

4a02577098ef335a6f51ef9af0ec133bfdcf042b28faaea4c9ea533ed9585d83.exe
Size

3.2MB
MD5

f17e0a4aeb643428f3fec7d4b72a63a7
SHA1

43b36f960e5466cd5160e111754bd71dccb6c05d
SHA256

4a02577098ef335a6f51ef9af0ec133bfdcf042b28faaea4c9ea533ed9585d83
SHA512

0850190cd85cf8f04428ddff38f6443b0d9e63d1bba038c62f7b2af4908ca29575cafc294695351744f5e93501bdf42fee56c952b761a382d54b5561e3e7c012

Score

10^/10

njrat system evasion persistence trojan

Malware Config

Extracted

Family

njrat

Version

im523

Botnet

system

192.168.56.1:1414

Mutex

f5f77609bd30b7a81be16e78606bcee3

Attributes

reg_key
f5f77609bd30b7a81be16e78606bcee3
splitter
|'|'|

Signatures

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

Processes:

CDS.execrypted.exesystem.exe

pid process

1816 CDS.exe
2028 crypted.exe
748 system.exe
Modifies Windows Firewall 1 TTPs
evasion

Modify Existing Service
T1031

pid	process
1816	CDS.exe
2028	crypted.exe
748	system.exe

Loads dropped DLL 10 IoCs

Processes:

4a02577098ef335a6f51ef9af0ec133bfdcf042b28faaea4c9ea533ed9585d83.exeCDS.execrypted.exesystem.exe

pid	process
1980	4a02577098ef335a6f51ef9af0ec133bfdcf042b28faaea4c9ea533ed9585d83.exe
1816	CDS.exe
1816	CDS.exe
1816	CDS.exe
1816	CDS.exe
1816	CDS.exe
1816	CDS.exe
2028	crypted.exe
2028	crypted.exe
748	system.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

4a02577098ef335a6f51ef9af0ec133bfdcf042b28faaea4c9ea533ed9585d83.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce	4a02577098ef335a6f51ef9af0ec133bfdcf042b28faaea4c9ea533ed9585d83.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup0 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP000.TMP\\\""	4a02577098ef335a6f51ef9af0ec133bfdcf042b28faaea4c9ea533ed9585d83.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 2 IoCs

Processes:

CDS.exe

pid process

1816 CDS.exe
1816 CDS.exe

pid	process
1816	CDS.exe
1816	CDS.exe

Suspicious use of AdjustPrivilegeToken 33 IoCs

Processes:

system.exe

description	pid	process
Token: SeDebugPrivilege	748	system.exe
Token: 33	748	system.exe
Token: SeIncBasePriorityPrivilege	748	system.exe
Token: 33	748	system.exe
Token: SeIncBasePriorityPrivilege	748	system.exe
Token: 33	748	system.exe
Token: SeIncBasePriorityPrivilege	748	system.exe
Token: 33	748	system.exe
Token: SeIncBasePriorityPrivilege	748	system.exe
Token: 33	748	system.exe
Token: SeIncBasePriorityPrivilege	748	system.exe
Token: 33	748	system.exe
Token: SeIncBasePriorityPrivilege	748	system.exe
Token: 33	748	system.exe
Token: SeIncBasePriorityPrivilege	748	system.exe
Token: 33	748	system.exe
Token: SeIncBasePriorityPrivilege	748	system.exe
Token: 33	748	system.exe
Token: SeIncBasePriorityPrivilege	748	system.exe
Token: 33	748	system.exe
Token: SeIncBasePriorityPrivilege	748	system.exe
Token: 33	748	system.exe
Token: SeIncBasePriorityPrivilege	748	system.exe
Token: 33	748	system.exe
Token: SeIncBasePriorityPrivilege	748	system.exe
Token: 33	748	system.exe
Token: SeIncBasePriorityPrivilege	748	system.exe
Token: 33	748	system.exe
Token: SeIncBasePriorityPrivilege	748	system.exe
Token: 33	748	system.exe
Token: SeIncBasePriorityPrivilege	748	system.exe
Token: 33	748	system.exe
Token: SeIncBasePriorityPrivilege	748	system.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

CDS.exe

pid process

1816 CDS.exe
1816 CDS.exe

pid	process
1816	CDS.exe
1816	CDS.exe

Suspicious use of WriteProcessMemory 28 IoCs

Processes:

4a02577098ef335a6f51ef9af0ec133bfdcf042b28faaea4c9ea533ed9585d83.exeCDS.execrypted.exesystem.exe

description	pid	process	target process
PID 1980 wrote to memory of 1816	1980	4a02577098ef335a6f51ef9af0ec133bfdcf042b28faaea4c9ea533ed9585d83.exe	CDS.exe
PID 1980 wrote to memory of 1816	1980	4a02577098ef335a6f51ef9af0ec133bfdcf042b28faaea4c9ea533ed9585d83.exe	CDS.exe
PID 1980 wrote to memory of 1816	1980	4a02577098ef335a6f51ef9af0ec133bfdcf042b28faaea4c9ea533ed9585d83.exe	CDS.exe
PID 1980 wrote to memory of 1816	1980	4a02577098ef335a6f51ef9af0ec133bfdcf042b28faaea4c9ea533ed9585d83.exe	CDS.exe
PID 1980 wrote to memory of 1816	1980	4a02577098ef335a6f51ef9af0ec133bfdcf042b28faaea4c9ea533ed9585d83.exe	CDS.exe
PID 1980 wrote to memory of 1816	1980	4a02577098ef335a6f51ef9af0ec133bfdcf042b28faaea4c9ea533ed9585d83.exe	CDS.exe
PID 1980 wrote to memory of 1816	1980	4a02577098ef335a6f51ef9af0ec133bfdcf042b28faaea4c9ea533ed9585d83.exe	CDS.exe
PID 1816 wrote to memory of 2028	1816	CDS.exe	crypted.exe
PID 1816 wrote to memory of 2028	1816	CDS.exe	crypted.exe
PID 1816 wrote to memory of 2028	1816	CDS.exe	crypted.exe
PID 1816 wrote to memory of 2028	1816	CDS.exe	crypted.exe
PID 1816 wrote to memory of 2028	1816	CDS.exe	crypted.exe
PID 1816 wrote to memory of 2028	1816	CDS.exe	crypted.exe
PID 1816 wrote to memory of 2028	1816	CDS.exe	crypted.exe
PID 2028 wrote to memory of 748	2028	crypted.exe	system.exe
PID 2028 wrote to memory of 748	2028	crypted.exe	system.exe
PID 2028 wrote to memory of 748	2028	crypted.exe	system.exe
PID 2028 wrote to memory of 748	2028	crypted.exe	system.exe
PID 2028 wrote to memory of 748	2028	crypted.exe	system.exe
PID 2028 wrote to memory of 748	2028	crypted.exe	system.exe
PID 2028 wrote to memory of 748	2028	crypted.exe	system.exe
PID 748 wrote to memory of 1596	748	system.exe	netsh.exe
PID 748 wrote to memory of 1596	748	system.exe	netsh.exe
PID 748 wrote to memory of 1596	748	system.exe	netsh.exe
PID 748 wrote to memory of 1596	748	system.exe	netsh.exe
PID 748 wrote to memory of 1596	748	system.exe	netsh.exe
PID 748 wrote to memory of 1596	748	system.exe	netsh.exe
PID 748 wrote to memory of 1596	748	system.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\4a02577098ef335a6f51ef9af0ec133bfdcf042b28faaea4c9ea533ed9585d83.exe
"C:\Users\Admin\AppData\Local\Temp\4a02577098ef335a6f51ef9af0ec133bfdcf042b28faaea4c9ea533ed9585d83.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1980

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\CDS.exe
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\CDS.exe
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1816

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\crypted.exe
"C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\crypted.exe"
3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2028

C:\Users\Admin\AppData\Roaming\system.exe
"C:\Users\Admin\AppData\Roaming\system.exe"
4⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:748

C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\system.exe" "system.exe" ENABLE
5⤵
PID:1596

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Modify Existing Service

T1031

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\630_10.png
Filesize
2KB

MD5
340b294efc691d1b20c64175d565ebc7

SHA1
81cb9649bd1c9a62ae79e781818fc24d15c29ce7

SHA256
72566894059452101ea836bbff9ede5069141eeb52022ab55baa24e1666825c9

SHA512
1395a8e175c63a1a1ff459a9dac437156c74299272e020e7e078a087969251a8534f17244a529acbc1b6800a97d4c0abfa3c88f6fcb88423f56dfaae9b49fc3d

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\CDS.cdd
Filesize
13KB

MD5
3e7ecaeb51c2812d13b07ec852d74aaf

SHA1
e9bdab93596ffb0f7f8c65243c579180939acb26

SHA256
e7e942993864e8b18780ef10a415f7b93924c6378248c52f0c96895735222b96

SHA512
635cd5173b595f1905af9eeea65037601cf8496d519c506b6d082662d438c26a1bfe653eaf6edcb117ccf8767975c37ab0238ca4c77574e2706f9b238a15ad4d

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\CDS.exe
Filesize
6.1MB

MD5
424bf196deaeb4ddcafb78e137fa560a

SHA1
007738e9486c904a3115daa6e8ba2ee692af58c8

SHA256
0963cef2f742a31b2604fe975f4471ae6a76641490fe60805db744fef9bdd5d2

SHA512
a9be6dd5b2ed84baea34e0f1b1e8f5388ce3662c5dcb6a80c2d175be95f9598312837420c07b52cdfaa9e94bcffd8c7a2b9db2b551dfac171bce4b92f466e797

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\CDS.exe
Filesize
6.1MB

MD5
424bf196deaeb4ddcafb78e137fa560a

SHA1
007738e9486c904a3115daa6e8ba2ee692af58c8

SHA256
0963cef2f742a31b2604fe975f4471ae6a76641490fe60805db744fef9bdd5d2

SHA512
a9be6dd5b2ed84baea34e0f1b1e8f5388ce3662c5dcb6a80c2d175be95f9598312837420c07b52cdfaa9e94bcffd8c7a2b9db2b551dfac171bce4b92f466e797

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\c.dat
Filesize
185KB

MD5
96c8ab7d720ef93c062b660d69f88dd3

SHA1
625c2488fac853191b24db045db1c26e93d552e5

SHA256
be6d3616721f428190944b5603d06c25594fdc7499c8ef7eeabdbca2690fe457

SHA512
53161392d2e9ef053ef819d48b4beb190425c535d0fe03200d3492fa4571baaca8e305b48c5316dde35710e426511be2860ab60343ea892dc738853bd3cb26a1

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\crypted.exe
Filesize
185KB

MD5
ee98354431c4b8933eb8f06e10738e86

SHA1
fee5556f0fbea4667120598c865ee88c9a039dd1

SHA256
a1456154cec24379fbc029c286104505ee3e1e5256e850c33c7e5353d5b1b7f4

SHA512
7223995383df20f1190d4b5cef021013272df5df671571cd89bb63150488a57f96fdaa78c04785a023672139fc7b884d2e1caf30faee0a55e8f22ae2499c8bd1

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\crypted.exe
Filesize
185KB

MD5
ee98354431c4b8933eb8f06e10738e86

SHA1
fee5556f0fbea4667120598c865ee88c9a039dd1

SHA256
a1456154cec24379fbc029c286104505ee3e1e5256e850c33c7e5353d5b1b7f4

SHA512
7223995383df20f1190d4b5cef021013272df5df671571cd89bb63150488a57f96fdaa78c04785a023672139fc7b884d2e1caf30faee0a55e8f22ae2499c8bd1

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\fs.settings
Filesize
5B

MD5
68934a3e9455fa72420237eb05902327

SHA1
7cb6efb98ba5972a9b5090dc2e517fe14d12cb04

SHA256
fcbcf165908dd18a9e49f7ff27810176db8e9f63b4352213741664245224f8aa

SHA512
719fa67eef49c4b2a2b83f0c62bddd88c106aaadb7e21ae057c8802b700e36f81fe3f144812d8b05d66dc663d908b25645e153262cf6d457aa34e684af9e328d

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\lua5.1.dll
Filesize
322KB

MD5
c3256800dce47c14acc83ccca4c3e2ac

SHA1
9d126818c66991dbc3813a65eddb88bbcf77f30a

SHA256
f26f4f66022acc96d0319c09814ebeda60f4ab96b63b6262045dc786dc7c5866

SHA512
6865a98ad8a6bd02d1ba35a28b36b6306af393f5e9ad767cd6da027bb021f7399d629423f510c44436ac3e4603b6c606493edf8b14d21fabf3eab16d37bd0d25

Download Submit
C:\Users\Admin\AppData\Roaming\system.exe
Filesize
185KB

MD5
ee98354431c4b8933eb8f06e10738e86

SHA1
fee5556f0fbea4667120598c865ee88c9a039dd1

SHA256
a1456154cec24379fbc029c286104505ee3e1e5256e850c33c7e5353d5b1b7f4

SHA512
7223995383df20f1190d4b5cef021013272df5df671571cd89bb63150488a57f96fdaa78c04785a023672139fc7b884d2e1caf30faee0a55e8f22ae2499c8bd1

Download Submit
C:\Users\Admin\AppData\Roaming\system.exe
Filesize
185KB

MD5
ee98354431c4b8933eb8f06e10738e86

SHA1
fee5556f0fbea4667120598c865ee88c9a039dd1

SHA256
a1456154cec24379fbc029c286104505ee3e1e5256e850c33c7e5353d5b1b7f4

SHA512
7223995383df20f1190d4b5cef021013272df5df671571cd89bb63150488a57f96fdaa78c04785a023672139fc7b884d2e1caf30faee0a55e8f22ae2499c8bd1

Download Submit
\Users\Admin\AppData\Local\Temp\IXP000.TMP\CDS.exe
Filesize
6.1MB

MD5
424bf196deaeb4ddcafb78e137fa560a

SHA1
007738e9486c904a3115daa6e8ba2ee692af58c8

SHA256
0963cef2f742a31b2604fe975f4471ae6a76641490fe60805db744fef9bdd5d2

SHA512
a9be6dd5b2ed84baea34e0f1b1e8f5388ce3662c5dcb6a80c2d175be95f9598312837420c07b52cdfaa9e94bcffd8c7a2b9db2b551dfac171bce4b92f466e797

Download Submit
\Users\Admin\AppData\Local\Temp\IXP000.TMP\CDS.exe
Filesize
6.1MB

MD5
424bf196deaeb4ddcafb78e137fa560a

SHA1
007738e9486c904a3115daa6e8ba2ee692af58c8

SHA256
0963cef2f742a31b2604fe975f4471ae6a76641490fe60805db744fef9bdd5d2

SHA512
a9be6dd5b2ed84baea34e0f1b1e8f5388ce3662c5dcb6a80c2d175be95f9598312837420c07b52cdfaa9e94bcffd8c7a2b9db2b551dfac171bce4b92f466e797

Download Submit
\Users\Admin\AppData\Local\Temp\IXP000.TMP\CDS.exe
Filesize
6.1MB

MD5
424bf196deaeb4ddcafb78e137fa560a

SHA1
007738e9486c904a3115daa6e8ba2ee692af58c8

SHA256
0963cef2f742a31b2604fe975f4471ae6a76641490fe60805db744fef9bdd5d2

SHA512
a9be6dd5b2ed84baea34e0f1b1e8f5388ce3662c5dcb6a80c2d175be95f9598312837420c07b52cdfaa9e94bcffd8c7a2b9db2b551dfac171bce4b92f466e797

Download Submit
\Users\Admin\AppData\Local\Temp\IXP000.TMP\crypted.exe
Filesize
185KB

MD5
ee98354431c4b8933eb8f06e10738e86

SHA1
fee5556f0fbea4667120598c865ee88c9a039dd1

SHA256
a1456154cec24379fbc029c286104505ee3e1e5256e850c33c7e5353d5b1b7f4

SHA512
7223995383df20f1190d4b5cef021013272df5df671571cd89bb63150488a57f96fdaa78c04785a023672139fc7b884d2e1caf30faee0a55e8f22ae2499c8bd1

Download Submit
\Users\Admin\AppData\Local\Temp\IXP000.TMP\crypted.exe
Filesize
185KB

MD5
ee98354431c4b8933eb8f06e10738e86

SHA1
fee5556f0fbea4667120598c865ee88c9a039dd1

SHA256
a1456154cec24379fbc029c286104505ee3e1e5256e850c33c7e5353d5b1b7f4

SHA512
7223995383df20f1190d4b5cef021013272df5df671571cd89bb63150488a57f96fdaa78c04785a023672139fc7b884d2e1caf30faee0a55e8f22ae2499c8bd1

Download Submit
\Users\Admin\AppData\Local\Temp\IXP000.TMP\crypted.exe
Filesize
185KB

MD5
ee98354431c4b8933eb8f06e10738e86

SHA1
fee5556f0fbea4667120598c865ee88c9a039dd1

SHA256
a1456154cec24379fbc029c286104505ee3e1e5256e850c33c7e5353d5b1b7f4

SHA512
7223995383df20f1190d4b5cef021013272df5df671571cd89bb63150488a57f96fdaa78c04785a023672139fc7b884d2e1caf30faee0a55e8f22ae2499c8bd1

Download Submit
\Users\Admin\AppData\Local\Temp\IXP000.TMP\crypted.exe
Filesize
185KB

MD5
ee98354431c4b8933eb8f06e10738e86

SHA1
fee5556f0fbea4667120598c865ee88c9a039dd1

SHA256
a1456154cec24379fbc029c286104505ee3e1e5256e850c33c7e5353d5b1b7f4

SHA512
7223995383df20f1190d4b5cef021013272df5df671571cd89bb63150488a57f96fdaa78c04785a023672139fc7b884d2e1caf30faee0a55e8f22ae2499c8bd1

Download Submit
\Users\Admin\AppData\Local\Temp\IXP000.TMP\lua5.1.dll
Filesize
322KB

MD5
c3256800dce47c14acc83ccca4c3e2ac

SHA1
9d126818c66991dbc3813a65eddb88bbcf77f30a

SHA256
f26f4f66022acc96d0319c09814ebeda60f4ab96b63b6262045dc786dc7c5866

SHA512
6865a98ad8a6bd02d1ba35a28b36b6306af393f5e9ad767cd6da027bb021f7399d629423f510c44436ac3e4603b6c606493edf8b14d21fabf3eab16d37bd0d25

Download Submit
\Users\Admin\AppData\Roaming\system.exe
Filesize
185KB

MD5
ee98354431c4b8933eb8f06e10738e86

SHA1
fee5556f0fbea4667120598c865ee88c9a039dd1

SHA256
a1456154cec24379fbc029c286104505ee3e1e5256e850c33c7e5353d5b1b7f4

SHA512
7223995383df20f1190d4b5cef021013272df5df671571cd89bb63150488a57f96fdaa78c04785a023672139fc7b884d2e1caf30faee0a55e8f22ae2499c8bd1

Download Submit
\Users\Admin\AppData\Roaming\system.exe
Filesize
185KB

MD5
ee98354431c4b8933eb8f06e10738e86

SHA1
fee5556f0fbea4667120598c865ee88c9a039dd1

SHA256
a1456154cec24379fbc029c286104505ee3e1e5256e850c33c7e5353d5b1b7f4

SHA512
7223995383df20f1190d4b5cef021013272df5df671571cd89bb63150488a57f96fdaa78c04785a023672139fc7b884d2e1caf30faee0a55e8f22ae2499c8bd1

Download Submit
memory/748-78-0x0000000000000000-mapping.dmp

Download
memory/748-83-0x0000000072760000-0x0000000072D0B000-memory.dmp

Filesize
5.7MB

Download
memory/1596-84-0x0000000000000000-mapping.dmp

Download
memory/1816-56-0x0000000000000000-mapping.dmp

Download
memory/1980-54-0x0000000075081000-0x0000000075083000-memory.dmp

Filesize
8KB

Download
memory/2028-71-0x0000000000000000-mapping.dmp

Download
memory/2028-76-0x0000000072D10000-0x00000000732BB000-memory.dmp

Filesize
5.7MB

Download