njrat | 06c3f944b727c87972f9d56fea68a60f1af29b0e0c22277b5e41b99c8de09b69

General

Target

06c3f944b727c87972f9d56fea68a60f1af29b0e0c22277b5e41b99c8de09b69.exe
Size

556KB
MD5

1dc99b41c1208984206d0772b185f048
SHA1

de93c338c7e8972c06f8baa85b7f32280590b40f
SHA256

06c3f944b727c87972f9d56fea68a60f1af29b0e0c22277b5e41b99c8de09b69
SHA512

daac4683972ae6e2e2b1dbc491d91161ae01e03a159448cd06e61ddaa1a2fa11220b5e45f7bea3cdbe2ec85bb688c953c62618aba84ef16412f2acd2e2f27502
SSDEEP

6144:LT8x80a46mjAEaJ/aMQvFYZ0V5UWHiOBoqEBBHIcagKWsdLe3ZWKrvpNX3EsLK1Y:s5a46mjFcQ00HFCkKBcLemsLK1QJ4e

Score

10^/10

njrat steam discovery trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

steam

C2

193.186.4.155:5136

Mutex

765ae8a70251ab6ea2a97fb80e3cfb11

Attributes

reg_key
765ae8a70251ab6ea2a97fb80e3cfb11
splitter
|'|'|

Signatures

Njrat family
njrat
njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

Processes:

06c3f944b727c87972f9d56fea68a60f1af29b0e0c22277b5e41b99c8de09b69.exerundll32.exeAcroRd32.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	06c3f944b727c87972f9d56fea68a60f1af29b0e0c22277b5e41b99c8de09b69.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AcroRd32.exe

Modifies registry class 7 IoCs

Processes:

rundll32.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000_CLASSES\_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000_CLASSES\_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000_CLASSES\_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000_CLASSES\_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000_CLASSES\_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000_CLASSES\_auto_file	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

AcroRd32.exe

pid	Process
2764	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

AcroRd32.exe

pid	Process
2764	AcroRd32.exe
2764	AcroRd32.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

06c3f944b727c87972f9d56fea68a60f1af29b0e0c22277b5e41b99c8de09b69.exerundll32.exe

description	pid	Process	procid_target
PID 2132 wrote to memory of 2368	2132	06c3f944b727c87972f9d56fea68a60f1af29b0e0c22277b5e41b99c8de09b69.exe	31
PID 2132 wrote to memory of 2368	2132	06c3f944b727c87972f9d56fea68a60f1af29b0e0c22277b5e41b99c8de09b69.exe	31
PID 2132 wrote to memory of 2368	2132	06c3f944b727c87972f9d56fea68a60f1af29b0e0c22277b5e41b99c8de09b69.exe	31
PID 2132 wrote to memory of 2368	2132	06c3f944b727c87972f9d56fea68a60f1af29b0e0c22277b5e41b99c8de09b69.exe	31
PID 2132 wrote to memory of 2368	2132	06c3f944b727c87972f9d56fea68a60f1af29b0e0c22277b5e41b99c8de09b69.exe	31
PID 2132 wrote to memory of 2368	2132	06c3f944b727c87972f9d56fea68a60f1af29b0e0c22277b5e41b99c8de09b69.exe	31
PID 2132 wrote to memory of 2368	2132	06c3f944b727c87972f9d56fea68a60f1af29b0e0c22277b5e41b99c8de09b69.exe	31
PID 2368 wrote to memory of 2764	2368	rundll32.exe	32
PID 2368 wrote to memory of 2764	2368	rundll32.exe	32
PID 2368 wrote to memory of 2764	2368	rundll32.exe	32
PID 2368 wrote to memory of 2764	2368	rundll32.exe	32

C:\Users\Admin\AppData\Local\Temp\06c3f944b727c87972f9d56fea68a60f1af29b0e0c22277b5e41b99c8de09b69.exe
"C:\Users\Admin\AppData\Local\Temp\06c3f944b727c87972f9d56fea68a60f1af29b0e0c22277b5e41b99c8de09b69.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2132
- C:\Windows\SysWOW64\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\steam
  2⤵
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2368
- - 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\steam"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2764

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\steam

Filesize
556KB

MD5
1dc99b41c1208984206d0772b185f048

SHA1
de93c338c7e8972c06f8baa85b7f32280590b40f

SHA256
06c3f944b727c87972f9d56fea68a60f1af29b0e0c22277b5e41b99c8de09b69

SHA512
daac4683972ae6e2e2b1dbc491d91161ae01e03a159448cd06e61ddaa1a2fa11220b5e45f7bea3cdbe2ec85bb688c953c62618aba84ef16412f2acd2e2f27502

Download Submit
C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents

Filesize
3KB

MD5
62118658ed7d1471dd24057ab73dcbfa

SHA1
b90b9f0adee57410a2ddd1b65d95a03d58f2c29b

SHA256
a5eb6fe1fb1d556d62f350e3f9c9c401221ead218e48315ec340ebc8757c8a68

SHA512
af7ff521664aed08a6d86608c681585e44983076ea3426a0e705bed57235b52ecd55f1252666a4b9eab097427e3d6257ecd9edb1a24804c4cb7f8d9728d9ec49

Download Submit
memory/2132-0-0x0000000074EE1000-0x0000000074EE2000-memory.dmp

Filesize
4KB

Download
memory/2132-1-0x0000000074EE0000-0x000000007548B000-memory.dmp

Filesize
5.7MB

Download
memory/2132-2-0x0000000074EE0000-0x000000007548B000-memory.dmp

Filesize
5.7MB

Download
memory/2132-5-0x0000000074EE0000-0x000000007548B000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads