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

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Control Panel\International\Geo\Nation	5b86cbad21d81626db92220fbed7a465.exe

Executes dropped EXE 3 IoCs

pid	Process
2940	Dllhost.exe
3276	Server.exe
3184	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
4716	schtasks.exe

Suspicious behavior: GetForegroundWindowSpam 2 IoCs

pid	Process
2972	5b86cbad21d81626db92220fbed7a465.exe
2940	Dllhost.exe

Suspicious use of AdjustPrivilegeToken 31 IoCs

description	pid	Process
Token: SeDebugPrivilege	2940	Dllhost.exe
Token: 33	2940	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2940	Dllhost.exe
Token: 33	2940	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2940	Dllhost.exe
Token: 33	2940	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2940	Dllhost.exe
Token: 33	2940	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2940	Dllhost.exe
Token: 33	2940	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2940	Dllhost.exe
Token: 33	2940	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2940	Dllhost.exe
Token: 33	2940	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2940	Dllhost.exe
Token: 33	2940	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2940	Dllhost.exe
Token: 33	2940	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2940	Dllhost.exe
Token: 33	2940	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2940	Dllhost.exe
Token: 33	2940	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2940	Dllhost.exe
Token: 33	2940	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2940	Dllhost.exe
Token: 33	2940	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2940	Dllhost.exe
Token: 33	2940	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2940	Dllhost.exe
Token: 33	2940	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2940	Dllhost.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2972 wrote to memory of 2940	2972	5b86cbad21d81626db92220fbed7a465.exe	88
PID 2972 wrote to memory of 2940	2972	5b86cbad21d81626db92220fbed7a465.exe	88
PID 2940 wrote to memory of 4716	2940	Dllhost.exe	93
PID 2940 wrote to memory of 4716	2940	Dllhost.exe	93

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⤵
- Checks computer location settings
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:2972
- 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:2940
- - 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:4716

C:\Users\Admin\AppData\Local\Temp\Server.exe
C:\Users\Admin\AppData\Local\Temp/Server.exe
1⤵
- Executes dropped EXE
PID:3276

C:\Users\Admin\AppData\Local\Temp\Server.exe
C:\Users\Admin\AppData\Local\Temp/Server.exe
1⤵
- Executes dropped EXE
PID:3184

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

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\Server.exe.log

Filesize
1KB

MD5
a8a147915e3a996fdbe10b3a3f1e1bb2

SHA1
abc564c1be468d57e700913e7b6cf8f62d421263

SHA256
8b96a8557deea66696837af011843d6a82451ba57c8f9b5a2726a70818d6fc7e

SHA512
17b42f17ef60a9f625703172763f692e5ed2ca93564a97853dfa72bb0ac6305ef3267aea0b205938e3aa8eac10156d9d4f322b30d0329d92d647bcec6372731c

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

Filesize
25KB

MD5
5b86cbad21d81626db92220fbed7a465

SHA1
124dcfaa2fa3d1bb17af97249ddd49b566fdbfc3

SHA256
ef628a6511f0a9fe1effcb71b5ca1fd4be85c85da8fb18d5f30de3c27e8e1bb6

SHA512
6297cb2d0592fc25102f98a7703c130eb6fee67c9286a585f115f8252cc02533a32b4ad288ee50331e9e46792c648e1e515c2011170002fb67b8fd61d5984343

Download Submit
memory/2940-14-0x0000000002E30000-0x0000000002E40000-memory.dmp

Filesize
64KB

Download
memory/2940-13-0x00007FFCD1EA0000-0x00007FFCD2961000-memory.dmp

Filesize
10.8MB

Download
memory/2940-18-0x0000000002E30000-0x0000000002E40000-memory.dmp

Filesize
64KB

Download
memory/2940-17-0x00007FFCD1EA0000-0x00007FFCD2961000-memory.dmp

Filesize
10.8MB

Download
memory/2972-3-0x000000001B0D0000-0x000000001B0E0000-memory.dmp

Filesize
64KB

Download
memory/2972-0-0x00000000002B0000-0x00000000002B8000-memory.dmp

Filesize
32KB

Download
memory/2972-15-0x00007FFCD1EA0000-0x00007FFCD2961000-memory.dmp

Filesize
10.8MB

Download
memory/2972-2-0x0000000000A50000-0x0000000000A62000-memory.dmp

Filesize
72KB

Download
memory/2972-1-0x00007FFCD1EA0000-0x00007FFCD2961000-memory.dmp

Filesize
10.8MB

Download
memory/3184-28-0x000000001BA40000-0x000000001BA50000-memory.dmp

Filesize
64KB

Download
memory/3184-29-0x00007FFCD1EA0000-0x00007FFCD2961000-memory.dmp

Filesize
10.8MB

Download
memory/3184-26-0x00007FFCD1EA0000-0x00007FFCD2961000-memory.dmp

Filesize
10.8MB

Download
memory/3184-27-0x0000000002F50000-0x0000000002F62000-memory.dmp

Filesize
72KB

Download
memory/3276-21-0x00007FFCD1EA0000-0x00007FFCD2961000-memory.dmp

Filesize
10.8MB

Download
memory/3276-23-0x00007FFCD1EA0000-0x00007FFCD2961000-memory.dmp

Filesize
10.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads