44caliber | 067205b69d3c39c5553c45fe92408b0b7c69c8a9f5c2108c01524f4fd2fc7de9

Analysis

max time kernel
90s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
submitted
19-05-2022 17:49

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General

Target

blackangus.exe
Size

275KB
MD5

f77897f8a1db43161bcd5bfe7660fe6e
SHA1

b1e7142f586de5a48adcd3a132053e6fc0258bf4
SHA256

067205b69d3c39c5553c45fe92408b0b7c69c8a9f5c2108c01524f4fd2fc7de9
SHA512

b6b12a311eef32cef295ade3fd642ef63f45ba3f6aa0d5b28cce968f79ed2c6cf324b2810fe51ab09328d3ff5a10c0c7e9f345901cd1af5191bbcb52286c3e0f

Score

10^/10

44caliber spyware stealer

Malware Config

Extracted

Family

44caliber

https://discord.com/api/webhooks/973294177112686612/4QUQSbqvdZZd-DqEn3jQ1gWfu67yolKc4k1__wufBB-BWQv0dBmUKe8-IpUD-6DotJiV

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

4 freegeoip.app
5 freegeoip.app

flow	ioc
4	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:

blackangus.exe

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

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

blackangus.exe

pid process

3016 blackangus.exe
3016 blackangus.exe
3016 blackangus.exe
3016 blackangus.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

blackangus.exe

description pid process

Token: SeDebugPrivilege 3016 blackangus.exe

pid	process
3016	blackangus.exe
3016	blackangus.exe
3016	blackangus.exe
3016	blackangus.exe

description	pid	process
Token: SeDebugPrivilege	3016	blackangus.exe

C:\Users\Admin\AppData\Local\Temp\blackangus.exe
"C:\Users\Admin\AppData\Local\Temp\blackangus.exe"
1⤵
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3016

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/3016-130-0x00000211C2A30000-0x00000211C2A7C000-memory.dmp

Filesize
304KB

Download
memory/3016-131-0x00007FFF9B510000-0x00007FFF9BFD1000-memory.dmp

Filesize
10.8MB

Download