44caliber | c5399cf4b380afdf4b7182c713757961ccb61c51c1f6f520c98afc6711a12d3b

Analysis

max time kernel
137s
max time network
141s
platform
windows10-2004_x64
resource
win10v2004-en-20220113
submitted
01-03-2022 18:13

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General

Target

c5399cf4b380afdf4b7182c713757961ccb61c51c1f6f520c98afc6711a12d3b.exe
Size

274KB
MD5

58dda4f172222c41e87d2782a363b2bb
SHA1

9d5a8d0d9d97b95b7b0cca88ad48017941c7a4fc
SHA256

c5399cf4b380afdf4b7182c713757961ccb61c51c1f6f520c98afc6711a12d3b
SHA512

ef9da0e0b2fd1369cc54cf43baa1908e7349888c923edf8cc78cd1ad0fdee59f1c79692eeb9a627306b8b0be7cfde919a285af8bb5439353d209155b22790086

Score

10^/10

44caliber spyware stealer

Malware Config

Extracted

Family

44caliber

https://discordapp.com/api/webhooks/942342705353199656/D1rXHNGPNVCZU4vJqkCF4OKJwQJyEuXiVGUHrdu885iCt3s776Mbhg0XMhQoPFRyERjg

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

8 freegeoip.app
7 freegeoip.app

flow	ioc
8	freegeoip.app
7	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:

c5399cf4b380afdf4b7182c713757961ccb61c51c1f6f520c98afc6711a12d3b.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	c5399cf4b380afdf4b7182c713757961ccb61c51c1f6f520c98afc6711a12d3b.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	c5399cf4b380afdf4b7182c713757961ccb61c51c1f6f520c98afc6711a12d3b.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

c5399cf4b380afdf4b7182c713757961ccb61c51c1f6f520c98afc6711a12d3b.exe

pid	process
1512	c5399cf4b380afdf4b7182c713757961ccb61c51c1f6f520c98afc6711a12d3b.exe
1512	c5399cf4b380afdf4b7182c713757961ccb61c51c1f6f520c98afc6711a12d3b.exe
1512	c5399cf4b380afdf4b7182c713757961ccb61c51c1f6f520c98afc6711a12d3b.exe
1512	c5399cf4b380afdf4b7182c713757961ccb61c51c1f6f520c98afc6711a12d3b.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

c5399cf4b380afdf4b7182c713757961ccb61c51c1f6f520c98afc6711a12d3b.exe

description pid process

Token: SeDebugPrivilege 1512 c5399cf4b380afdf4b7182c713757961ccb61c51c1f6f520c98afc6711a12d3b.exe

description	pid	process
Token: SeDebugPrivilege	1512	c5399cf4b380afdf4b7182c713757961ccb61c51c1f6f520c98afc6711a12d3b.exe

C:\Users\Admin\AppData\Local\Temp\c5399cf4b380afdf4b7182c713757961ccb61c51c1f6f520c98afc6711a12d3b.exe
"C:\Users\Admin\AppData\Local\Temp\c5399cf4b380afdf4b7182c713757961ccb61c51c1f6f520c98afc6711a12d3b.exe"
1⤵
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1512

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/1512-130-0x0000013DE49C0000-0x0000013DE4A0A000-memory.dmp

Filesize
296KB

Download
memory/1512-131-0x00007FFF7A223000-0x00007FFF7A225000-memory.dmp

Filesize
8KB

Download
memory/1512-132-0x0000013DFFD60000-0x0000013DFFD62000-memory.dmp

Filesize
8KB

Download