njrat | ef628a6511f0a9fe1effcb71b5ca1fd4be85c85da8fb18d5f30de3c27e8e1bb6

General

Target

5b86cbad21d81626db92220fbed7a465.exe
Size

25KB
MD5

5b86cbad21d81626db92220fbed7a465
SHA1

124dcfaa2fa3d1bb17af97249ddd49b566fdbfc3
SHA256

ef628a6511f0a9fe1effcb71b5ca1fd4be85c85da8fb18d5f30de3c27e8e1bb6
SHA512

6297cb2d0592fc25102f98a7703c130eb6fee67c9286a585f115f8252cc02533a32b4ad288ee50331e9e46792c648e1e515c2011170002fb67b8fd61d5984343
SSDEEP

384:sv3ZI++mmHgOC69Qlr4XU1lL2IVJinVcVcp0jW9h2HbmdPvo8I6CQYtIdgDxpf:svpwhHB2r/1c4IFpdgwvj1CzI+Fpf

Score

10^/10

njrat flans mod trojan

Malware Config

Extracted

Family

njrat

Version

Njrat 0.7 Golden By Hassan Amiri

Botnet

flans mod

C2

127.0.0.1:25565

Mutex

Windows Update

Attributes

reg_key
Windows Update
splitter
|Hassan|

Signatures

njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat

Executes dropped EXE 3 IoCs

pid	Process
1812	Dllhost.exe
2492	Server.exe
2920	Server.exe

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

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task/Job

T1053

pid	Process
2780	schtasks.exe

Suspicious behavior: GetForegroundWindowSpam 2 IoCs

pid	Process
1700	5b86cbad21d81626db92220fbed7a465.exe
1812	Dllhost.exe

Suspicious use of AdjustPrivilegeToken 33 IoCs

description	pid	Process
Token: SeDebugPrivilege	1812	Dllhost.exe
Token: 33	1812	Dllhost.exe
Token: SeIncBasePriorityPrivilege	1812	Dllhost.exe
Token: 33	1812	Dllhost.exe
Token: SeIncBasePriorityPrivilege	1812	Dllhost.exe
Token: 33	1812	Dllhost.exe
Token: SeIncBasePriorityPrivilege	1812	Dllhost.exe
Token: 33	1812	Dllhost.exe
Token: SeIncBasePriorityPrivilege	1812	Dllhost.exe
Token: 33	1812	Dllhost.exe
Token: SeIncBasePriorityPrivilege	1812	Dllhost.exe
Token: 33	1812	Dllhost.exe
Token: SeIncBasePriorityPrivilege	1812	Dllhost.exe
Token: 33	1812	Dllhost.exe
Token: SeIncBasePriorityPrivilege	1812	Dllhost.exe
Token: 33	1812	Dllhost.exe
Token: SeIncBasePriorityPrivilege	1812	Dllhost.exe
Token: 33	1812	Dllhost.exe
Token: SeIncBasePriorityPrivilege	1812	Dllhost.exe
Token: 33	1812	Dllhost.exe
Token: SeIncBasePriorityPrivilege	1812	Dllhost.exe
Token: 33	1812	Dllhost.exe
Token: SeIncBasePriorityPrivilege	1812	Dllhost.exe
Token: 33	1812	Dllhost.exe
Token: SeIncBasePriorityPrivilege	1812	Dllhost.exe
Token: 33	1812	Dllhost.exe
Token: SeIncBasePriorityPrivilege	1812	Dllhost.exe
Token: 33	1812	Dllhost.exe
Token: SeIncBasePriorityPrivilege	1812	Dllhost.exe
Token: 33	1812	Dllhost.exe
Token: SeIncBasePriorityPrivilege	1812	Dllhost.exe
Token: 33	1812	Dllhost.exe
Token: SeIncBasePriorityPrivilege	1812	Dllhost.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1700 wrote to memory of 1812	1700	5b86cbad21d81626db92220fbed7a465.exe	28
PID 1700 wrote to memory of 1812	1700	5b86cbad21d81626db92220fbed7a465.exe	28
PID 1700 wrote to memory of 1812	1700	5b86cbad21d81626db92220fbed7a465.exe	28
PID 1812 wrote to memory of 2780	1812	Dllhost.exe	29
PID 1812 wrote to memory of 2780	1812	Dllhost.exe	29
PID 1812 wrote to memory of 2780	1812	Dllhost.exe	29
PID 2608 wrote to memory of 2492	2608	taskeng.exe	32
PID 2608 wrote to memory of 2492	2608	taskeng.exe	32
PID 2608 wrote to memory of 2492	2608	taskeng.exe	32
PID 2608 wrote to memory of 2920	2608	taskeng.exe	35
PID 2608 wrote to memory of 2920	2608	taskeng.exe	35
PID 2608 wrote to memory of 2920	2608	taskeng.exe	35

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\5b86cbad21d81626db92220fbed7a465.exe
"C:\Users\Admin\AppData\Local\Temp\5b86cbad21d81626db92220fbed7a465.exe"
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:1700
- C:\Users\Admin\AppData\Local\Temp\Dllhost.exe
  "C:\Users\Admin\AppData\Local\Temp\Dllhost.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1812
- - C:\Windows\system32\schtasks.exe
    schtasks /create /sc minute /mo 1 /tn Server /tr C:\Users\Admin\AppData\Local\Temp/Server.exe
    3⤵
    - Creates scheduled task(s)
    PID:2780

C:\Windows\system32\taskeng.exe
taskeng.exe {11EEA834-9391-4766-B656-613CA03DCFC7} S-1-5-21-3601492379-692465709-652514833-1000:CALKHSYM\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2608
- C:\Users\Admin\AppData\Local\Temp\Server.exe
  C:\Users\Admin\AppData\Local\Temp/Server.exe
  2⤵
  - Executes dropped EXE
  PID:2492
- C:\Users\Admin\AppData\Local\Temp\Server.exe
  C:\Users\Admin\AppData\Local\Temp/Server.exe
  2⤵
  - Executes dropped EXE
  PID:2920

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Persistence

Scheduled Task/Job

1

T1053

Privilege Escalation

Scheduled Task/Job

1

T1053

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\Dllhost.exe

Filesize
25KB

MD5
5b86cbad21d81626db92220fbed7a465

SHA1
124dcfaa2fa3d1bb17af97249ddd49b566fdbfc3

SHA256
ef628a6511f0a9fe1effcb71b5ca1fd4be85c85da8fb18d5f30de3c27e8e1bb6

SHA512
6297cb2d0592fc25102f98a7703c130eb6fee67c9286a585f115f8252cc02533a32b4ad288ee50331e9e46792c648e1e515c2011170002fb67b8fd61d5984343

Download Submit
memory/1700-9-0x000007FEF6000000-0x000007FEF69EC000-memory.dmp

Filesize
9.9MB

Download
memory/1700-2-0x000007FEF6000000-0x000007FEF69EC000-memory.dmp

Filesize
9.9MB

Download
memory/1700-1-0x0000000000250000-0x0000000000262000-memory.dmp

Filesize
72KB

Download
memory/1700-3-0x000000001B2E0000-0x000000001B360000-memory.dmp

Filesize
512KB

Download
memory/1700-0-0x00000000010A0000-0x00000000010A8000-memory.dmp

Filesize
32KB

Download
memory/1812-12-0x00000000003D0000-0x00000000003E2000-memory.dmp

Filesize
72KB

Download
memory/1812-10-0x000007FEF6000000-0x000007FEF69EC000-memory.dmp

Filesize
9.9MB

Download
memory/1812-11-0x00000000008E0000-0x00000000008E8000-memory.dmp

Filesize
32KB

Download
memory/1812-13-0x000000001B300000-0x000000001B380000-memory.dmp

Filesize
512KB

Download
memory/1812-15-0x000007FEF6000000-0x000007FEF69EC000-memory.dmp

Filesize
9.9MB

Download
memory/1812-16-0x000000001B300000-0x000000001B380000-memory.dmp

Filesize
512KB

Download
memory/2492-20-0x000007FEF6000000-0x000007FEF69EC000-memory.dmp

Filesize
9.9MB

Download
memory/2492-21-0x0000000000F10000-0x0000000000F18000-memory.dmp

Filesize
32KB

Download
memory/2492-22-0x00000000004D0000-0x00000000004E2000-memory.dmp

Filesize
72KB

Download
memory/2492-23-0x000007FEF6000000-0x000007FEF69EC000-memory.dmp

Filesize
9.9MB

Download
memory/2920-25-0x0000000000250000-0x0000000000258000-memory.dmp

Filesize
32KB

Download
memory/2920-26-0x000007FEF6000000-0x000007FEF69EC000-memory.dmp

Filesize
9.9MB

Download
memory/2920-27-0x000007FEF6000000-0x000007FEF69EC000-memory.dmp

Filesize
9.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads