44caliber | 518f22ac3dfb39779d6b21fdd230b71db39453f73b42f411009a0afe7dbbe818

Analysis

max time kernel
151s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
17-02-2024 19:51

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General

Target

3E5BA25AA4F23CEB11BE209D1967E341.exe
Size

460KB
MD5

3e5ba25aa4f23ceb11be209d1967e341
SHA1

c25a05acb5231776456d08fad7df0e48d92931c0
SHA256

518f22ac3dfb39779d6b21fdd230b71db39453f73b42f411009a0afe7dbbe818
SHA512

184243d51766bf8d292308e0177046f88e0eb55201eddc9d14670dd3d526c5ed6026c03c88227698670f451f43a3e4f1378f51f2334a9b54d83bb2bc677b0c04
SSDEEP

6144:jE+yclwQKjdn+WPtYVJIoBfRT+tkbOSeC2xDjAzQeOOg7Y55HkVSGsc:jBdlwHRn+WlYV+8T+tkKC0EEE17HkV8c

Score

10^/10

44caliber njrat hacked evasion persistence spyware stealer trojan

Malware Config

Extracted

Family

44caliber

https://discord.com/api/webhooks/1199323175729758268/CBdP8e3cXbL0ED8xKBhMw0ikKHmITu-6CI4WjfttZm2aWGZGjp43Msrjwp8AVeEBf6T1

Extracted

Family

njrat

Version

im523

Botnet

HacKed

mary-cottage.gl.at.ply.gg:10652

Mutex

9902b29d6de7130c2f409ab27fb09fa7

Attributes

reg_key
9902b29d6de7130c2f409ab27fb09fa7
splitter
|'|'|

Signatures

44Caliber
An open source infostealer written in C#.
stealer 44caliber
njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat

Modifies Windows Firewall 2 TTPs 1 IoCs

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
5000	netsh.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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-635608581-3370340891-292606865-1000\Control Panel\International\Geo\Nation	3E5BA25AA4F23CEB11BE209D1967E341.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\9902b29d6de7130c2f409ab27fb09fa7.exe	3.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\9902b29d6de7130c2f409ab27fb09fa7.exe	3.exe

Executes dropped EXE 2 IoCs

pid	Process
1640	1.exe
4444	3.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials In Files
T1552.001

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-635608581-3370340891-292606865-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\9902b29d6de7130c2f409ab27fb09fa7 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\3.exe\" .."	3.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\9902b29d6de7130c2f409ab27fb09fa7 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\3.exe\" .."	3.exe

Looks up external IP address via web service 2 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
7	freegeoip.app
8	freegeoip.app

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

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	1.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	1.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1640	1.exe
1640	1.exe
1640	1.exe
1640	1.exe
4444	3.exe
4444	3.exe
4444	3.exe
4444	3.exe
4444	3.exe
4444	3.exe
4444	3.exe
4444	3.exe
4444	3.exe
4444	3.exe
4444	3.exe
4444	3.exe
4444	3.exe
4444	3.exe
4444	3.exe
4444	3.exe
4444	3.exe
4444	3.exe
4444	3.exe
4444	3.exe
4444	3.exe
4444	3.exe
4444	3.exe
4444	3.exe
4444	3.exe
4444	3.exe
4444	3.exe
4444	3.exe
4444	3.exe
4444	3.exe
4444	3.exe
4444	3.exe
4444	3.exe
4444	3.exe
4444	3.exe
4444	3.exe
4444	3.exe
4444	3.exe
4444	3.exe
4444	3.exe
4444	3.exe
4444	3.exe
4444	3.exe
4444	3.exe
4444	3.exe
4444	3.exe
4444	3.exe
4444	3.exe
4444	3.exe
4444	3.exe
4444	3.exe
4444	3.exe
4444	3.exe
4444	3.exe
4444	3.exe
4444	3.exe
4444	3.exe
4444	3.exe
4444	3.exe
4444	3.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4444	3.exe

Suspicious use of AdjustPrivilegeToken 36 IoCs

description	pid	Process
Token: SeDebugPrivilege	1640	1.exe
Token: SeDebugPrivilege	4444	3.exe
Token: 33	4444	3.exe
Token: SeIncBasePriorityPrivilege	4444	3.exe
Token: 33	4444	3.exe
Token: SeIncBasePriorityPrivilege	4444	3.exe
Token: 33	4444	3.exe
Token: SeIncBasePriorityPrivilege	4444	3.exe
Token: 33	4444	3.exe
Token: SeIncBasePriorityPrivilege	4444	3.exe
Token: 33	4444	3.exe
Token: SeIncBasePriorityPrivilege	4444	3.exe
Token: 33	4444	3.exe
Token: SeIncBasePriorityPrivilege	4444	3.exe
Token: 33	4444	3.exe
Token: SeIncBasePriorityPrivilege	4444	3.exe
Token: 33	4444	3.exe
Token: SeIncBasePriorityPrivilege	4444	3.exe
Token: 33	4444	3.exe
Token: SeIncBasePriorityPrivilege	4444	3.exe
Token: 33	4444	3.exe
Token: SeIncBasePriorityPrivilege	4444	3.exe
Token: 33	4444	3.exe
Token: SeIncBasePriorityPrivilege	4444	3.exe
Token: 33	4444	3.exe
Token: SeIncBasePriorityPrivilege	4444	3.exe
Token: 33	4444	3.exe
Token: SeIncBasePriorityPrivilege	4444	3.exe
Token: 33	4444	3.exe
Token: SeIncBasePriorityPrivilege	4444	3.exe
Token: 33	4444	3.exe
Token: SeIncBasePriorityPrivilege	4444	3.exe
Token: 33	4444	3.exe
Token: SeIncBasePriorityPrivilege	4444	3.exe
Token: 33	4444	3.exe
Token: SeIncBasePriorityPrivilege	4444	3.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3416 wrote to memory of 1640	3416	3E5BA25AA4F23CEB11BE209D1967E341.exe	84
PID 3416 wrote to memory of 1640	3416	3E5BA25AA4F23CEB11BE209D1967E341.exe	84
PID 3416 wrote to memory of 4444	3416	3E5BA25AA4F23CEB11BE209D1967E341.exe	86
PID 3416 wrote to memory of 4444	3416	3E5BA25AA4F23CEB11BE209D1967E341.exe	86
PID 3416 wrote to memory of 4444	3416	3E5BA25AA4F23CEB11BE209D1967E341.exe	86
PID 4444 wrote to memory of 5000	4444	3.exe	88
PID 4444 wrote to memory of 5000	4444	3.exe	88
PID 4444 wrote to memory of 5000	4444	3.exe	88

C:\Users\Admin\AppData\Local\Temp\3E5BA25AA4F23CEB11BE209D1967E341.exe
"C:\Users\Admin\AppData\Local\Temp\3E5BA25AA4F23CEB11BE209D1967E341.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3416
- C:\Users\Admin\AppData\Local\Temp\1.exe
  "C:\Users\Admin\AppData\Local\Temp\1.exe"
  2⤵
  - Executes dropped EXE
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1640
- C:\Users\Admin\AppData\Local\Temp\3.exe
  "C:\Users\Admin\AppData\Local\Temp\3.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4444
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\3.exe" "3.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    PID:5000

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Modify Registry

T1112

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
534KB

MD5
0ce3051b867d50aa172d1b332f156e3e

SHA1
f87defe312cb3a5efea3f845d187762e153bddab

SHA256
5ac29f18472f943f2eb3c256fdbfe251b04ca66afc22fcba65183b0509feb529

SHA512
5169a3acd3c79cc4d22bf3a1f4d9770797d2c31503bab1022a153ad56c382e495de2ce06a8a04b3bb4b2fb2c666575dcdefa26533ff5affc4b6ce126e2166193

Download Submit
C:\Users\Admin\AppData\Local\Temp\3.exe

Filesize
37KB

MD5
6d11195af6cca04eb53eccf9aaf329dc

SHA1
85f70d6fcff5212649deaf1d18e66d563727c186

SHA256
4c690a994e22eb6aa31af6e552b610ea1ff01ac58622d56232ad6e820c2aa414

SHA512
76a59b8164a478691d14be7e5d002280ec5453cb6d9f73387ad45e49755d03927f3814c42df987a4dc61c942e9e7b25ab9559651981020bf53ad56a8e4e65c8b

Download Submit
C:\Users\Admin\AppData\Roaming\44\Process.txt

Filesize
1KB

MD5
939e4f617533e4ff9effc8bad3c8d454

SHA1
75c67851294981278bae00585472d768388705f1

SHA256
bb172d55c0fb40ca634b705debf5c836b852b6bf44847e2ee474f3211f74f8c2

SHA512
f2a2aa6eb85084019634bbf56d659a59979008fec64f9ce5d36a5700d237206278dc61c968ad1d651cdbfa04fc0d245ebf59d2470217e56633d176eac568acc0

Download Submit
C:\Users\Admin\AppData\Roaming\44\Process.txt

Filesize
1KB

MD5
f4e309ac09d0134b0c19ed97a440d45e

SHA1
c4500a816d7271a1ff098ad16d0ab894dc033b45

SHA256
4f5b98eb7715055b770aded438a1212a8396cb772eb4c3a4449646a9c2c35e69

SHA512
693dbbe05109c134563b04cac5f0cdc563e52e2aa4a84095faed0033e93b37ce04b1ed6794219ff8c76dfb03f1f5e52f01556e477e850141b2fcc1cff7a8f3df

Download Submit
memory/1640-46-0x00007FFCB4DF0000-0x00007FFCB58B1000-memory.dmp

Filesize
10.8MB

Download
memory/1640-53-0x000001FB21630000-0x000001FB21640000-memory.dmp

Filesize
64KB

Download
memory/1640-14-0x000001FB06F10000-0x000001FB06F9A000-memory.dmp

Filesize
552KB

Download
memory/1640-145-0x00007FFCB4DF0000-0x00007FFCB58B1000-memory.dmp

Filesize
10.8MB

Download
memory/4444-54-0x0000000073000000-0x00000000735B1000-memory.dmp

Filesize
5.7MB

Download
memory/4444-55-0x0000000073000000-0x00000000735B1000-memory.dmp

Filesize
5.7MB

Download
memory/4444-56-0x00000000019E0000-0x00000000019F0000-memory.dmp

Filesize
64KB

Download
memory/4444-147-0x0000000073000000-0x00000000735B1000-memory.dmp

Filesize
5.7MB

Download
memory/4444-148-0x0000000073000000-0x00000000735B1000-memory.dmp

Filesize
5.7MB

Download
memory/4444-149-0x00000000019E0000-0x00000000019F0000-memory.dmp

Filesize
64KB

Download