44caliber | 92d3f92a57bf71f584fa0be94f75b4daba7e6e94aadb9a85a2d77c64af8201b3

Analysis

max time kernel
4294180s
max time network
129s
platform
windows7_x64
resource
win7-20220223-en
submitted
01-03-2022 18:12

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General

Target

92d3f92a57bf71f584fa0be94f75b4daba7e6e94aadb9a85a2d77c64af8201b3.exe
Size

274KB
MD5

3c7d9d0478ec7ba56bc562dd56d3021b
SHA1

9832832c2bd0038549c24d86173f949bcbefa8a3
SHA256

92d3f92a57bf71f584fa0be94f75b4daba7e6e94aadb9a85a2d77c64af8201b3
SHA512

5d0ecf41e3788999afbd9a4c994bff5af957c8e02017275c994ed8fb95f2708c262b8ed7b2eabb0b093bc16064df6d1b0e4e964c986351aa6f12db0867388ef0

Score

10^/10

44caliber spyware stealer

Malware Config

Extracted

Family

44caliber

https://discord.com/api/webhooks/940935755608498197/XP-3HscY5BUWZ9NjQP1vew4mGjibW0owME_BbFqPRs3r4Q6CVTJnmEubM-1hmIBMkyLI

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

6 freegeoip.app
5 freegeoip.app

flow	ioc
6	freegeoip.app
5	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:

92d3f92a57bf71f584fa0be94f75b4daba7e6e94aadb9a85a2d77c64af8201b3.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	92d3f92a57bf71f584fa0be94f75b4daba7e6e94aadb9a85a2d77c64af8201b3.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	92d3f92a57bf71f584fa0be94f75b4daba7e6e94aadb9a85a2d77c64af8201b3.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

92d3f92a57bf71f584fa0be94f75b4daba7e6e94aadb9a85a2d77c64af8201b3.exe

pid	process
2016	92d3f92a57bf71f584fa0be94f75b4daba7e6e94aadb9a85a2d77c64af8201b3.exe
2016	92d3f92a57bf71f584fa0be94f75b4daba7e6e94aadb9a85a2d77c64af8201b3.exe
2016	92d3f92a57bf71f584fa0be94f75b4daba7e6e94aadb9a85a2d77c64af8201b3.exe
2016	92d3f92a57bf71f584fa0be94f75b4daba7e6e94aadb9a85a2d77c64af8201b3.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

92d3f92a57bf71f584fa0be94f75b4daba7e6e94aadb9a85a2d77c64af8201b3.exe

description pid process

Token: SeDebugPrivilege 2016 92d3f92a57bf71f584fa0be94f75b4daba7e6e94aadb9a85a2d77c64af8201b3.exe

description	pid	process
Token: SeDebugPrivilege	2016	92d3f92a57bf71f584fa0be94f75b4daba7e6e94aadb9a85a2d77c64af8201b3.exe

C:\Users\Admin\AppData\Local\Temp\92d3f92a57bf71f584fa0be94f75b4daba7e6e94aadb9a85a2d77c64af8201b3.exe
"C:\Users\Admin\AppData\Local\Temp\92d3f92a57bf71f584fa0be94f75b4daba7e6e94aadb9a85a2d77c64af8201b3.exe"
1⤵
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2016

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

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Downloads

memory/2016-54-0x0000000000A10000-0x0000000000A5A000-memory.dmp

Filesize
296KB

Download
memory/2016-55-0x000007FEF5633000-0x000007FEF5634000-memory.dmp

Filesize
4KB

Download
memory/2016-56-0x000000001B190000-0x000000001B192000-memory.dmp

Filesize
8KB

Download