44caliber | 50b0c137a141fc6570e94ebb41ca65412a6799b7c68fcf3580ad3cf69a2f678d

Analysis

max time kernel
44s
max time network
49s
platform
windows7_x64
resource
win7-20220901-en
resource tags

arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
submitted
30-11-2022 17:46

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General

Target

50b0c137a141fc6570e94ebb41ca65412a6799b7c68fcf3580ad3cf69a2f678d.exe
Size

891KB
MD5

d72af6a6e2f222852f8dc6a8a846de13
SHA1

79ab0f050d3d689fe126b6056d15a11dd71f93f3
SHA256

50b0c137a141fc6570e94ebb41ca65412a6799b7c68fcf3580ad3cf69a2f678d
SHA512

b948e4ae8475177d1b4edbafcd3de059dff173e89bfc0e351fe1ecea9c763b682ef2d6d065039b623829d0d55ba9937899cccf649e773fc9149038f3c670b8f4
SSDEEP

12288:cPEY8pGNJDVTwSGJLrbO1RzSJpQ98FufPaL3IhHAwBQ13O:4NzMSGJnbRXQW4HzBQR

Score

10^/10

44caliber spyware stealer

Malware Config

Signatures

44Caliber
An open source infostealer written in C#.
stealer 44caliber
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
T1081
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials in Files
T1081
Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

3 freegeoip.app
4 freegeoip.app

flow	ioc
3	freegeoip.app
4	freegeoip.app

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

Processes:

50b0c137a141fc6570e94ebb41ca65412a6799b7c68fcf3580ad3cf69a2f678d.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	50b0c137a141fc6570e94ebb41ca65412a6799b7c68fcf3580ad3cf69a2f678d.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	50b0c137a141fc6570e94ebb41ca65412a6799b7c68fcf3580ad3cf69a2f678d.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

50b0c137a141fc6570e94ebb41ca65412a6799b7c68fcf3580ad3cf69a2f678d.exe

pid	process
1900	50b0c137a141fc6570e94ebb41ca65412a6799b7c68fcf3580ad3cf69a2f678d.exe
1900	50b0c137a141fc6570e94ebb41ca65412a6799b7c68fcf3580ad3cf69a2f678d.exe
1900	50b0c137a141fc6570e94ebb41ca65412a6799b7c68fcf3580ad3cf69a2f678d.exe
1900	50b0c137a141fc6570e94ebb41ca65412a6799b7c68fcf3580ad3cf69a2f678d.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

50b0c137a141fc6570e94ebb41ca65412a6799b7c68fcf3580ad3cf69a2f678d.exe

description pid process

Token: SeDebugPrivilege 1900 50b0c137a141fc6570e94ebb41ca65412a6799b7c68fcf3580ad3cf69a2f678d.exe

description	pid	process
Token: SeDebugPrivilege	1900	50b0c137a141fc6570e94ebb41ca65412a6799b7c68fcf3580ad3cf69a2f678d.exe

C:\Users\Admin\AppData\Local\Temp\50b0c137a141fc6570e94ebb41ca65412a6799b7c68fcf3580ad3cf69a2f678d.exe
"C:\Users\Admin\AppData\Local\Temp\50b0c137a141fc6570e94ebb41ca65412a6799b7c68fcf3580ad3cf69a2f678d.exe"
1⤵
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1900

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/1900-54-0x00000000013D0000-0x00000000014B6000-memory.dmp

Filesize
920KB

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