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
Key created	\REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000_CLASSES\_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000_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-1-5-21-3063565911-2056067323-3330884624-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000_CLASSES\_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000_CLASSES\_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000_CLASSES\_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000_CLASSES\_auto_file\shell	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

AcroRd32.exe

pid	Process
2556	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

AcroRd32.exe

pid	Process
2556	AcroRd32.exe
2556	AcroRd32.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

06c3f944b727c87972f9d56fea68a60f1af29b0e0c22277b5e41b99c8de09b69.exerundll32.exe

description	pid	Process	procid_target
PID 1708 wrote to memory of 2328	1708	06c3f944b727c87972f9d56fea68a60f1af29b0e0c22277b5e41b99c8de09b69.exe	30
PID 1708 wrote to memory of 2328	1708	06c3f944b727c87972f9d56fea68a60f1af29b0e0c22277b5e41b99c8de09b69.exe	30
PID 1708 wrote to memory of 2328	1708	06c3f944b727c87972f9d56fea68a60f1af29b0e0c22277b5e41b99c8de09b69.exe	30
PID 1708 wrote to memory of 2328	1708	06c3f944b727c87972f9d56fea68a60f1af29b0e0c22277b5e41b99c8de09b69.exe	30
PID 1708 wrote to memory of 2328	1708	06c3f944b727c87972f9d56fea68a60f1af29b0e0c22277b5e41b99c8de09b69.exe	30
PID 1708 wrote to memory of 2328	1708	06c3f944b727c87972f9d56fea68a60f1af29b0e0c22277b5e41b99c8de09b69.exe	30
PID 1708 wrote to memory of 2328	1708	06c3f944b727c87972f9d56fea68a60f1af29b0e0c22277b5e41b99c8de09b69.exe	30
PID 2328 wrote to memory of 2556	2328	rundll32.exe	31
PID 2328 wrote to memory of 2556	2328	rundll32.exe	31
PID 2328 wrote to memory of 2556	2328	rundll32.exe	31
PID 2328 wrote to memory of 2556	2328	rundll32.exe	31

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:1708
- 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:2328
- - 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:2556

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
1e267a3892bfa63376dae82efe198529

SHA1
47d9c23ee3f31c3511cdac98a9fef30d9497d3ad

SHA256
7acea8a1adf91ebd7535517678dd632d5faedc0c0a8685d549847883e81ddabc

SHA512
0d2e0c890b9d9e8478c3a43c43874419f6e6229d3057200200788badec34d5034f588c5fc217a8d1af4733dfde9bd8466c30a3804ea98bbe6fea406c23e72e36

Download Submit
memory/1708-0-0x00000000743B1000-0x00000000743B2000-memory.dmp

Filesize
4KB

Download
memory/1708-1-0x00000000743B0000-0x000000007495B000-memory.dmp

Filesize
5.7MB

Download
memory/1708-2-0x00000000743B0000-0x000000007495B000-memory.dmp

Filesize
5.7MB

Download
memory/1708-5-0x00000000743B0000-0x000000007495B000-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