njrat | b34672c7194dc439e09164ea39449d529a1efde6029f18edadb26e399591c68f

General

Target

qkZKfZTC9ZEN8z2.exe
Size

383KB
MD5

170f90d6d9b128a8af103c8003539a54
SHA1

35a2f8791679b7b17fbb2758a4de717bf1314039
SHA256

b34672c7194dc439e09164ea39449d529a1efde6029f18edadb26e399591c68f
SHA512

512a34561fe2528287308738999ec9d58c1690098673af9cde7b429b7e307c21a9dd4c9e642514c7f51cf2971bafc975354f8d147b954292b1a4f12becdbac98

Score

10^/10

njrat $$$$$$fucking evasion persistence trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

$$$$$$Fucking

C2

whmfix009.cf:5409

Mutex

f6a7c83d337d940f548e06019597f0a2

Attributes

reg_key
f6a7c83d337d940f548e06019597f0a2
splitter
|'|'|

Signatures

njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat
Looks for VirtualBox Guest Additions in registry 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497
Executes dropped EXE 2 IoCs

Processes:

cAQzTs.execAQzTs.exe

pid process

2224 cAQzTs.exe
2276 cAQzTs.exe
Looks for VMWare Tools registry key 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497
Modifies Windows Firewall 1 TTPs
evasion

Modify Existing Service
T1031

pid	process
2224	cAQzTs.exe
2276	cAQzTs.exe

Checks BIOS information in registry 2 TTPs 4 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

qkZKfZTC9ZEN8z2.execAQzTs.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	qkZKfZTC9ZEN8z2.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	qkZKfZTC9ZEN8z2.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	cAQzTs.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	cAQzTs.exe

Drops startup file 2 IoCs

Processes:

cAQzTs.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\f6a7c83d337d940f548e06019597f0a2.exe	cAQzTs.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\f6a7c83d337d940f548e06019597f0a2.exe	cAQzTs.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

cAQzTs.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000\Software\Microsoft\Windows\CurrentVersion\Run\f6a7c83d337d940f548e06019597f0a2 = "\"C:\\Users\\Admin\\AppData\\Roaming\\cAQzTs.exe\" .."	cAQzTs.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\f6a7c83d337d940f548e06019597f0a2 = "\"C:\\Users\\Admin\\AppData\\Roaming\\cAQzTs.exe\" .."	cAQzTs.exe

Maps connected drives based on registry 3 TTPs 4 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

qkZKfZTC9ZEN8z2.execAQzTs.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	qkZKfZTC9ZEN8z2.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum\0	qkZKfZTC9ZEN8z2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	cAQzTs.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum\0	cAQzTs.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

qkZKfZTC9ZEN8z2.execAQzTs.exe

description	pid	process	target process
PID 3084 set thread context of 588	3084	qkZKfZTC9ZEN8z2.exe	qkZKfZTC9ZEN8z2.exe
PID 2224 set thread context of 2276	2224	cAQzTs.exe	cAQzTs.exe

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

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exeschtasks.exe

pid process

1344 schtasks.exe
2008 schtasks.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

qkZKfZTC9ZEN8z2.execAQzTs.exe

pid process

3084 qkZKfZTC9ZEN8z2.exe
2224 cAQzTs.exe

pid	process
1344	schtasks.exe
2008	schtasks.exe

pid	process
3084	qkZKfZTC9ZEN8z2.exe
2224	cAQzTs.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

Processes:

qkZKfZTC9ZEN8z2.execAQzTs.execAQzTs.exe

description	pid	process
Token: SeDebugPrivilege	3084	qkZKfZTC9ZEN8z2.exe
Token: SeDebugPrivilege	2224	cAQzTs.exe
Token: SeDebugPrivilege	2276	cAQzTs.exe
Token: 33	2276	cAQzTs.exe
Token: SeIncBasePriorityPrivilege	2276	cAQzTs.exe
Token: 33	2276	cAQzTs.exe
Token: SeIncBasePriorityPrivilege	2276	cAQzTs.exe

Suspicious use of WriteProcessMemory 28 IoCs

Processes:

qkZKfZTC9ZEN8z2.exeqkZKfZTC9ZEN8z2.execAQzTs.execAQzTs.exe

description	pid	process	target process
PID 3084 wrote to memory of 1344	3084	qkZKfZTC9ZEN8z2.exe	schtasks.exe
PID 3084 wrote to memory of 1344	3084	qkZKfZTC9ZEN8z2.exe	schtasks.exe
PID 3084 wrote to memory of 1344	3084	qkZKfZTC9ZEN8z2.exe	schtasks.exe
PID 3084 wrote to memory of 588	3084	qkZKfZTC9ZEN8z2.exe	qkZKfZTC9ZEN8z2.exe
PID 3084 wrote to memory of 588	3084	qkZKfZTC9ZEN8z2.exe	qkZKfZTC9ZEN8z2.exe
PID 3084 wrote to memory of 588	3084	qkZKfZTC9ZEN8z2.exe	qkZKfZTC9ZEN8z2.exe
PID 3084 wrote to memory of 588	3084	qkZKfZTC9ZEN8z2.exe	qkZKfZTC9ZEN8z2.exe
PID 3084 wrote to memory of 588	3084	qkZKfZTC9ZEN8z2.exe	qkZKfZTC9ZEN8z2.exe
PID 3084 wrote to memory of 588	3084	qkZKfZTC9ZEN8z2.exe	qkZKfZTC9ZEN8z2.exe
PID 3084 wrote to memory of 588	3084	qkZKfZTC9ZEN8z2.exe	qkZKfZTC9ZEN8z2.exe
PID 3084 wrote to memory of 588	3084	qkZKfZTC9ZEN8z2.exe	qkZKfZTC9ZEN8z2.exe
PID 588 wrote to memory of 2224	588	qkZKfZTC9ZEN8z2.exe	cAQzTs.exe
PID 588 wrote to memory of 2224	588	qkZKfZTC9ZEN8z2.exe	cAQzTs.exe
PID 588 wrote to memory of 2224	588	qkZKfZTC9ZEN8z2.exe	cAQzTs.exe
PID 2224 wrote to memory of 2008	2224	cAQzTs.exe	schtasks.exe
PID 2224 wrote to memory of 2008	2224	cAQzTs.exe	schtasks.exe
PID 2224 wrote to memory of 2008	2224	cAQzTs.exe	schtasks.exe
PID 2224 wrote to memory of 2276	2224	cAQzTs.exe	cAQzTs.exe
PID 2224 wrote to memory of 2276	2224	cAQzTs.exe	cAQzTs.exe
PID 2224 wrote to memory of 2276	2224	cAQzTs.exe	cAQzTs.exe
PID 2224 wrote to memory of 2276	2224	cAQzTs.exe	cAQzTs.exe
PID 2224 wrote to memory of 2276	2224	cAQzTs.exe	cAQzTs.exe
PID 2224 wrote to memory of 2276	2224	cAQzTs.exe	cAQzTs.exe
PID 2224 wrote to memory of 2276	2224	cAQzTs.exe	cAQzTs.exe
PID 2224 wrote to memory of 2276	2224	cAQzTs.exe	cAQzTs.exe
PID 2276 wrote to memory of 2256	2276	cAQzTs.exe	netsh.exe
PID 2276 wrote to memory of 2256	2276	cAQzTs.exe	netsh.exe
PID 2276 wrote to memory of 2256	2276	cAQzTs.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\qkZKfZTC9ZEN8z2.exe
"C:\Users\Admin\AppData\Local\Temp\qkZKfZTC9ZEN8z2.exe"
1⤵
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3084

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\bEXOsg" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1742.tmp"
2⤵
- Creates scheduled task(s)
PID:1344

C:\Users\Admin\AppData\Local\Temp\qkZKfZTC9ZEN8z2.exe
"{path}"
2⤵
- Suspicious use of WriteProcessMemory
PID:588

C:\Users\Admin\AppData\Roaming\cAQzTs.exe
"C:\Users\Admin\AppData\Roaming\cAQzTs.exe"
3⤵
- Executes dropped EXE
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2224

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\bEXOsg" /XML "C:\Users\Admin\AppData\Local\Temp\tmp684.tmp"
4⤵
- Creates scheduled task(s)
PID:2008

C:\Users\Admin\AppData\Roaming\cAQzTs.exe
"{path}"
4⤵
- Executes dropped EXE
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2276

C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\cAQzTs.exe" "cAQzTs.exe" ENABLE
5⤵
PID:2256

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Modify Existing Service

1

T1031

Registry Run Keys / Startup Folder

1

T1060

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Virtualization/Sandbox Evasion

2

T1497

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

4

T1012

Virtualization/Sandbox Evasion

2

T1497

System Information Discovery

3

T1082

Peripheral Device Discovery

1

T1120

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\qkZKfZTC9ZEN8z2.exe.log
MD5
c9aee78d4e775b33bdf129c9ed58dd15

SHA1
4db166792d2eed48476d9e5625ed9938d9269f00

SHA256
4bff531bc0ee0fb02ee5e4fbbdafcf8bea8d5e43ba76dca89962469c191967cd

SHA512
74083d6689f89f1cec61890e7be21a59fd1e78c6e8dd49edaa7093c0a3d623cae2dedd1d55da6335f255c592d220c922f4acf6aa9dd7c346a3dce1545ddc27ff

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp1742.tmp
MD5
e2bc3c0c1bffd00bb69dc95fda04c942

SHA1
938b5da19da089cd26334f6c8cf67aa1d6003bf3

SHA256
41776d0a00f658e5206ae56c307bd7f684987a24d380100714183ff843af6c1a

SHA512
facd11a72565b4458e560727fff6bd15efa4120ff18575d6e06e7d227f00ae95ac70152590cc1052aa71afa876f97af7d20a16ca11bb578cad6942ea9f3df19f

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp684.tmp
MD5
e2bc3c0c1bffd00bb69dc95fda04c942

SHA1
938b5da19da089cd26334f6c8cf67aa1d6003bf3

SHA256
41776d0a00f658e5206ae56c307bd7f684987a24d380100714183ff843af6c1a

SHA512
facd11a72565b4458e560727fff6bd15efa4120ff18575d6e06e7d227f00ae95ac70152590cc1052aa71afa876f97af7d20a16ca11bb578cad6942ea9f3df19f

Download Submit
C:\Users\Admin\AppData\Roaming\cAQzTs.exe
MD5
170f90d6d9b128a8af103c8003539a54

SHA1
35a2f8791679b7b17fbb2758a4de717bf1314039

SHA256
b34672c7194dc439e09164ea39449d529a1efde6029f18edadb26e399591c68f

SHA512
512a34561fe2528287308738999ec9d58c1690098673af9cde7b429b7e307c21a9dd4c9e642514c7f51cf2971bafc975354f8d147b954292b1a4f12becdbac98

Download Submit
C:\Users\Admin\AppData\Roaming\cAQzTs.exe
MD5
170f90d6d9b128a8af103c8003539a54

SHA1
35a2f8791679b7b17fbb2758a4de717bf1314039

SHA256
b34672c7194dc439e09164ea39449d529a1efde6029f18edadb26e399591c68f

SHA512
512a34561fe2528287308738999ec9d58c1690098673af9cde7b429b7e307c21a9dd4c9e642514c7f51cf2971bafc975354f8d147b954292b1a4f12becdbac98

Download Submit
C:\Users\Admin\AppData\Roaming\cAQzTs.exe
MD5
170f90d6d9b128a8af103c8003539a54

SHA1
35a2f8791679b7b17fbb2758a4de717bf1314039

SHA256
b34672c7194dc439e09164ea39449d529a1efde6029f18edadb26e399591c68f

SHA512
512a34561fe2528287308738999ec9d58c1690098673af9cde7b429b7e307c21a9dd4c9e642514c7f51cf2971bafc975354f8d147b954292b1a4f12becdbac98

Download Submit
memory/588-15-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/588-16-0x000000000040748E-mapping.dmp

Download
memory/588-18-0x0000000073940000-0x000000007402E000-memory.dmp

Filesize
6.9MB

Download
memory/1344-13-0x0000000000000000-mapping.dmp

Download
memory/2008-37-0x0000000000000000-mapping.dmp

Download
memory/2224-26-0x0000000073940000-0x000000007402E000-memory.dmp

Filesize
6.9MB

Download
memory/2224-23-0x0000000000000000-mapping.dmp

Download
memory/2256-47-0x0000000000000000-mapping.dmp

Download
memory/2276-42-0x0000000073940000-0x000000007402E000-memory.dmp

Filesize
6.9MB

Download
memory/2276-40-0x000000000040748E-mapping.dmp

Download
memory/3084-6-0x0000000005590000-0x0000000005591000-memory.dmp

Filesize
4KB

Download
memory/3084-7-0x0000000003020000-0x0000000003021000-memory.dmp

Filesize
4KB

Download
memory/3084-2-0x0000000073940000-0x000000007402E000-memory.dmp

Filesize
6.9MB

Download
memory/3084-10-0x00000000072C0000-0x0000000007305000-memory.dmp

Filesize
276KB

Download
memory/3084-11-0x0000000008EE0000-0x0000000008EE1000-memory.dmp

Filesize
4KB

Download
memory/3084-5-0x0000000005C50000-0x0000000005C51000-memory.dmp

Filesize
4KB

Download
memory/3084-12-0x0000000008F80000-0x0000000008F81000-memory.dmp

Filesize
4KB

Download
memory/3084-3-0x0000000000CF0000-0x0000000000CF1000-memory.dmp

Filesize
4KB

Download
memory/3084-8-0x0000000009050000-0x0000000009051000-memory.dmp

Filesize
4KB

Download
memory/3084-9-0x0000000005880000-0x000000000588E000-memory.dmp

Filesize
56KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads