44caliber | 518f22ac3dfb39779d6b21fdd230b71db39453f73b42f411009a0afe7dbbe818

Analysis

max time kernel
151s
max time network
156s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
18-02-2024 05:45

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General

Target

518f22ac3dfb39779d6b21fdd230b71db39453f73b42f411009a0afe7dbbe818.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

Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 2 IoCs

resource	yara_rule
behavioral1/files/0x000d00000001234f-5.dat	INDICATOR_SUSPICIOUS_Binary_References_Browsers
behavioral1/memory/2680-29-0x0000000000170000-0x00000000001FA000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers

Detects executables Discord URL observed in first stage droppers 2 IoCs

resource	yara_rule
behavioral1/files/0x000d00000001234f-5.dat	INDICATOR_SUSPICIOUS_EXE_DiscordURL
behavioral1/memory/2680-29-0x0000000000170000-0x00000000001FA000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_DiscordURL

Detects executables referencing Discord tokens regular expressions 2 IoCs

resource	yara_rule
behavioral1/files/0x000d00000001234f-5.dat	INDICATOR_SUSPICIOUS_EXE_Discord_Regex
behavioral1/memory/2680-29-0x0000000000170000-0x00000000001FA000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_Discord_Regex

Detects executables referencing credit card regular expressions 2 IoCs

resource	yara_rule
behavioral1/files/0x000d00000001234f-5.dat	INDICATOR_SUSPICIOUS_EXE_CC_Regex
behavioral1/memory/2680-29-0x0000000000170000-0x00000000001FA000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_CC_Regex

Detects executables referencing many VPN software clients. Observed in infosteslers 2 IoCs

resource	yara_rule
behavioral1/files/0x000d00000001234f-5.dat	INDICATOR_SUSPICIOUS_EXE_References_VPN
behavioral1/memory/2680-29-0x0000000000170000-0x00000000001FA000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_VPN

Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers 2 IoCs

resource	yara_rule
behavioral1/files/0x000d00000001234f-5.dat	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
behavioral1/memory/2680-29-0x0000000000170000-0x00000000001FA000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store

Modifies Windows Firewall 2 TTPs 1 IoCs

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
1856	netsh.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
2680	1.exe
2832	3.exe

Loads dropped DLL 7 IoCs

pid	Process
2496	518f22ac3dfb39779d6b21fdd230b71db39453f73b42f411009a0afe7dbbe818.exe
2496	518f22ac3dfb39779d6b21fdd230b71db39453f73b42f411009a0afe7dbbe818.exe
2496	518f22ac3dfb39779d6b21fdd230b71db39453f73b42f411009a0afe7dbbe818.exe
2496	518f22ac3dfb39779d6b21fdd230b71db39453f73b42f411009a0afe7dbbe818.exe
2496	518f22ac3dfb39779d6b21fdd230b71db39453f73b42f411009a0afe7dbbe818.exe
2496	518f22ac3dfb39779d6b21fdd230b71db39453f73b42f411009a0afe7dbbe818.exe
2496	518f22ac3dfb39779d6b21fdd230b71db39453f73b42f411009a0afe7dbbe818.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-1-5-21-3308111660-3636268597-2291490419-1000\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
4	freegeoip.app
5	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
2680	1.exe
2680	1.exe
2680	1.exe
2680	1.exe
2832	3.exe
2832	3.exe
2832	3.exe
2832	3.exe
2832	3.exe
2832	3.exe
2832	3.exe
2832	3.exe
2832	3.exe
2832	3.exe
2832	3.exe
2832	3.exe
2832	3.exe
2832	3.exe
2832	3.exe
2832	3.exe
2832	3.exe
2832	3.exe
2832	3.exe
2832	3.exe
2832	3.exe
2832	3.exe
2832	3.exe
2832	3.exe
2832	3.exe
2832	3.exe
2832	3.exe
2832	3.exe
2832	3.exe
2832	3.exe
2832	3.exe
2832	3.exe
2832	3.exe
2832	3.exe
2832	3.exe
2832	3.exe
2832	3.exe
2832	3.exe
2832	3.exe
2832	3.exe
2832	3.exe
2832	3.exe
2832	3.exe
2832	3.exe
2832	3.exe
2832	3.exe
2832	3.exe
2832	3.exe
2832	3.exe
2832	3.exe
2832	3.exe
2832	3.exe
2832	3.exe
2832	3.exe
2832	3.exe
2832	3.exe
2832	3.exe
2832	3.exe
2832	3.exe
2832	3.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2832	3.exe

Suspicious use of AdjustPrivilegeToken 36 IoCs

description	pid	Process
Token: SeDebugPrivilege	2680	1.exe
Token: SeDebugPrivilege	2832	3.exe
Token: 33	2832	3.exe
Token: SeIncBasePriorityPrivilege	2832	3.exe
Token: 33	2832	3.exe
Token: SeIncBasePriorityPrivilege	2832	3.exe
Token: 33	2832	3.exe
Token: SeIncBasePriorityPrivilege	2832	3.exe
Token: 33	2832	3.exe
Token: SeIncBasePriorityPrivilege	2832	3.exe
Token: 33	2832	3.exe
Token: SeIncBasePriorityPrivilege	2832	3.exe
Token: 33	2832	3.exe
Token: SeIncBasePriorityPrivilege	2832	3.exe
Token: 33	2832	3.exe
Token: SeIncBasePriorityPrivilege	2832	3.exe
Token: 33	2832	3.exe
Token: SeIncBasePriorityPrivilege	2832	3.exe
Token: 33	2832	3.exe
Token: SeIncBasePriorityPrivilege	2832	3.exe
Token: 33	2832	3.exe
Token: SeIncBasePriorityPrivilege	2832	3.exe
Token: 33	2832	3.exe
Token: SeIncBasePriorityPrivilege	2832	3.exe
Token: 33	2832	3.exe
Token: SeIncBasePriorityPrivilege	2832	3.exe
Token: 33	2832	3.exe
Token: SeIncBasePriorityPrivilege	2832	3.exe
Token: 33	2832	3.exe
Token: SeIncBasePriorityPrivilege	2832	3.exe
Token: 33	2832	3.exe
Token: SeIncBasePriorityPrivilege	2832	3.exe
Token: 33	2832	3.exe
Token: SeIncBasePriorityPrivilege	2832	3.exe
Token: 33	2832	3.exe
Token: SeIncBasePriorityPrivilege	2832	3.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2496 wrote to memory of 2680	2496	518f22ac3dfb39779d6b21fdd230b71db39453f73b42f411009a0afe7dbbe818.exe	28
PID 2496 wrote to memory of 2680	2496	518f22ac3dfb39779d6b21fdd230b71db39453f73b42f411009a0afe7dbbe818.exe	28
PID 2496 wrote to memory of 2680	2496	518f22ac3dfb39779d6b21fdd230b71db39453f73b42f411009a0afe7dbbe818.exe	28
PID 2496 wrote to memory of 2680	2496	518f22ac3dfb39779d6b21fdd230b71db39453f73b42f411009a0afe7dbbe818.exe	28
PID 2496 wrote to memory of 2832	2496	518f22ac3dfb39779d6b21fdd230b71db39453f73b42f411009a0afe7dbbe818.exe	29
PID 2496 wrote to memory of 2832	2496	518f22ac3dfb39779d6b21fdd230b71db39453f73b42f411009a0afe7dbbe818.exe	29
PID 2496 wrote to memory of 2832	2496	518f22ac3dfb39779d6b21fdd230b71db39453f73b42f411009a0afe7dbbe818.exe	29
PID 2496 wrote to memory of 2832	2496	518f22ac3dfb39779d6b21fdd230b71db39453f73b42f411009a0afe7dbbe818.exe	29
PID 2832 wrote to memory of 1856	2832	3.exe	31
PID 2832 wrote to memory of 1856	2832	3.exe	31
PID 2832 wrote to memory of 1856	2832	3.exe	31
PID 2832 wrote to memory of 1856	2832	3.exe	31

C:\Users\Admin\AppData\Local\Temp\518f22ac3dfb39779d6b21fdd230b71db39453f73b42f411009a0afe7dbbe818.exe
"C:\Users\Admin\AppData\Local\Temp\518f22ac3dfb39779d6b21fdd230b71db39453f73b42f411009a0afe7dbbe818.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2496
- 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:2680
- 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:2832
- - 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:1856

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\44\Process.txt

Filesize
375B

MD5
460bf55432c89b95d90ed90049c143ed

SHA1
ac1e3232e43e9b4ea89a152863b623973048f731

SHA256
beab45976b71779d77eb4ca4c1b328077f4076f81ea63aa50b8786ab85017636

SHA512
3857d3af7be3c0ef0ba563a8612ab60ce74fdccbe9d1fab25f54eb11c27c50cc8be11a8eac74a03e6f0de960feb2172335fe0134e707c3c8b67baeec696146aa

Download Submit
\Users\Admin\AppData\Local\Temp\1.exe

Filesize
534KB

MD5
0ce3051b867d50aa172d1b332f156e3e

SHA1
f87defe312cb3a5efea3f845d187762e153bddab

SHA256
5ac29f18472f943f2eb3c256fdbfe251b04ca66afc22fcba65183b0509feb529

SHA512
5169a3acd3c79cc4d22bf3a1f4d9770797d2c31503bab1022a153ad56c382e495de2ce06a8a04b3bb4b2fb2c666575dcdefa26533ff5affc4b6ce126e2166193

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

Filesize
37KB

MD5
6d11195af6cca04eb53eccf9aaf329dc

SHA1
85f70d6fcff5212649deaf1d18e66d563727c186

SHA256
4c690a994e22eb6aa31af6e552b610ea1ff01ac58622d56232ad6e820c2aa414

SHA512
76a59b8164a478691d14be7e5d002280ec5453cb6d9f73387ad45e49755d03927f3814c42df987a4dc61c942e9e7b25ab9559651981020bf53ad56a8e4e65c8b

Download Submit
memory/2680-29-0x0000000000170000-0x00000000001FA000-memory.dmp

Filesize
552KB

Download
memory/2680-30-0x000007FEF56B0000-0x000007FEF609C000-memory.dmp

Filesize
9.9MB

Download
memory/2680-33-0x000000001B0D0000-0x000000001B150000-memory.dmp

Filesize
512KB

Download
memory/2680-82-0x000007FEF56B0000-0x000007FEF609C000-memory.dmp

Filesize
9.9MB

Download
memory/2832-31-0x0000000001FB0000-0x0000000001FF0000-memory.dmp

Filesize
256KB

Download
memory/2832-32-0x0000000074280000-0x000000007482B000-memory.dmp

Filesize
5.7MB

Download
memory/2832-83-0x0000000001FB0000-0x0000000001FF0000-memory.dmp

Filesize
256KB

Download
memory/2832-84-0x0000000074280000-0x000000007482B000-memory.dmp

Filesize
5.7MB

Download
memory/2832-85-0x0000000074280000-0x000000007482B000-memory.dmp

Filesize
5.7MB

Download