44caliber | f65ead2486253fc8f1ffb85322d3af078c3f0b59569e3ded89de0f510226015d

Analysis

max time kernel
118s
max time network
122s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
26/02/2024, 15:47

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General

Target

a6baa421094ae5561400c553c662bd17.exe
Size

253KB
MD5

a6baa421094ae5561400c553c662bd17
SHA1

7b049e54295e2816f33c53304d4b53b8b1a31a27
SHA256

f65ead2486253fc8f1ffb85322d3af078c3f0b59569e3ded89de0f510226015d
SHA512

fbbf4f3f9d3f5ef7e802601b9b125b46e54df1fc6c56ac6a08e98adef0518b2be845655b27d123a68f3647cfb4ce2014f005feeb618facf5bd440d21d1d03b83
SSDEEP

3072:XA7eUAkUo7+CJ+qppsXMpwJBzh3DGcZGGl6tj5rVgLZfzUGWg7w2zp1bCaKdOJ3K:weUAo5TxGJBzlGSGGEZgLxxEuCD

Score

10^/10

44caliber spyware stealer

Malware Config

Extracted

Family

44caliber

https://discord.com/api/webhooks/875024811489906738/CpyWbrHIQGqh718u5276J6WiFHZNZUgiY72o4Syy8xUjuJKn8uAQ0JGDBq6sXWEbGAnY

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
T1552.001
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials In Files
T1552.001

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
2	freegeoip.app
3	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

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	a6baa421094ae5561400c553c662bd17.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	a6baa421094ae5561400c553c662bd17.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2932	a6baa421094ae5561400c553c662bd17.exe
2932	a6baa421094ae5561400c553c662bd17.exe
2932	a6baa421094ae5561400c553c662bd17.exe
2932	a6baa421094ae5561400c553c662bd17.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2932	a6baa421094ae5561400c553c662bd17.exe

C:\Users\Admin\AppData\Local\Temp\a6baa421094ae5561400c553c662bd17.exe
"C:\Users\Admin\AppData\Local\Temp\a6baa421094ae5561400c553c662bd17.exe"
1⤵
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2932

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

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

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Downloads

C:\ProgramData\44\Process.txt

Filesize
265B

MD5
a20cabed8a4f3e0c39d6ea9dae044f23

SHA1
e25f22408037e2c9c7bae61796d4885bde29e977

SHA256
fa9b05e324d7f81dfd65c2ad791c81988a0b42390acbac427a2177b15742c1c7

SHA512
bc6907470f97daf1696c0a09d5886c37887c48f2a182797cf07fd7ae9f8bbb34434eec3259c0adb65fb787c181b91d2692f45958872fd0efd6a4bf6050f9a43d

Download Submit
memory/2932-0-0x0000000000820000-0x0000000000866000-memory.dmp

Filesize
280KB

Download
memory/2932-1-0x000007FEF5350000-0x000007FEF5D3C000-memory.dmp

Filesize
9.9MB

Download
memory/2932-2-0x0000000001F30000-0x0000000001FB0000-memory.dmp

Filesize
512KB

Download
memory/2932-50-0x000007FEF5350000-0x000007FEF5D3C000-memory.dmp

Filesize
9.9MB

Download