njrat | 37fa414b1beac72d5693525b934478c64655b122948b0f5ce9a647b4b08a8554

General

Target

a1142dd58b658687a9dfc83bfb327dfb.exe
Size

85KB
MD5

a1142dd58b658687a9dfc83bfb327dfb
SHA1

cfc125408dd419fb9a9308e80d3c7091780a417e
SHA256

37fa414b1beac72d5693525b934478c64655b122948b0f5ce9a647b4b08a8554
SHA512

7e8b5caf291c35a29d8e03f8a9ec9950ac91fd9e32519961c0dd1564d8233f9abe76af39029d59ad5c5f71dd95c30e8f9fe201e344bd465a4a93eca7c6a3f18c

Score

10^/10

njrat fff persistence trojan

Malware Config

Extracted

Family

njrat

Version

im523

Botnet

FFF

C2

4.tcp.ngrok.io:10180

Mutex

d6181fde73b7edf87857576171e471b0

Attributes

reg_key
d6181fde73b7edf87857576171e471b0
splitter
|'|'|

Signatures

njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat
Executes dropped EXE 1 IoCs

Processes:

1.exe

pid process

3044 1.exe
Sets service image path in registry 2 TTPs
persistence

Registry Run Keys / Startup Folder
T1060

Modify Registry
T1112

pid	process
3044	1.exe

Checks computer location settings 2 TTPs 1 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

a1142dd58b658687a9dfc83bfb327dfb.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Control Panel\International\Geo\Nation	a1142dd58b658687a9dfc83bfb327dfb.exe

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

System Information Discovery
T1082

Modifies data under HKEY_USERS 41 IoCs

Processes:

WaaSMedicAgent.exe

description	ioc	process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed	WaaSMedicAgent.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

a1142dd58b658687a9dfc83bfb327dfb.exe1.exefondue.exe

description	pid	process	target process
PID 552 wrote to memory of 3044	552	a1142dd58b658687a9dfc83bfb327dfb.exe	1.exe
PID 552 wrote to memory of 3044	552	a1142dd58b658687a9dfc83bfb327dfb.exe	1.exe
PID 552 wrote to memory of 3044	552	a1142dd58b658687a9dfc83bfb327dfb.exe	1.exe
PID 3044 wrote to memory of 2984	3044	1.exe	fondue.exe
PID 3044 wrote to memory of 2984	3044	1.exe	fondue.exe
PID 3044 wrote to memory of 2984	3044	1.exe	fondue.exe
PID 2984 wrote to memory of 680	2984	fondue.exe	FonDUE.EXE
PID 2984 wrote to memory of 680	2984	fondue.exe	FonDUE.EXE

C:\Users\Admin\AppData\Local\Temp\a1142dd58b658687a9dfc83bfb327dfb.exe
"C:\Users\Admin\AppData\Local\Temp\a1142dd58b658687a9dfc83bfb327dfb.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:552

C:\Users\Admin\AppData\Local\Temp\1.exe
"C:\Users\Admin\AppData\Local\Temp\1.exe"
2⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3044

C:\Windows\SysWOW64\fondue.exe
"C:\Windows\system32\fondue.exe" /enable-feature:NetFx3 /caller-name:mscoreei.dll
3⤵
- Suspicious use of WriteProcessMemory
PID:2984

C:\Windows\system32\FonDUE.EXE
"C:\Windows\sysnative\FonDUE.EXE" /enable-feature:NetFx3 /caller-name:mscoreei.dll
4⤵
PID:680

C:\Windows\System32\WaaSMedicAgent.exe
C:\Windows\System32\WaaSMedicAgent.exe 322ecc389b030b8538cf444877110ff7 OyQSP8GB3k6g8dF79Y3/hA.0.1.0.0.0
1⤵
- Modifies data under HKEY_USERS
PID:3508

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\1.exe
MD5
e0cacf3b4629d583074d0fc5b436b232

SHA1
0755c4b3e43fd01e21e2114b780b1ee802dce051

SHA256
352706f0e258388d65b9eff51e4c7965d9b276552ae06878da5b1422607885df

SHA512
a6728e2f4a7cd76e2d90725722907a0ea51f2507b67251667181a2ca9052e82685a729b0d00b6b48f01058db69d69e310025dd79bb7bc7bdbe3784d991d49f23

Download Submit
C:\Users\Admin\AppData\Local\Temp\1.exe
MD5
e0cacf3b4629d583074d0fc5b436b232

SHA1
0755c4b3e43fd01e21e2114b780b1ee802dce051

SHA256
352706f0e258388d65b9eff51e4c7965d9b276552ae06878da5b1422607885df

SHA512
a6728e2f4a7cd76e2d90725722907a0ea51f2507b67251667181a2ca9052e82685a729b0d00b6b48f01058db69d69e310025dd79bb7bc7bdbe3784d991d49f23

Download Submit

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads