44caliber | 8807b5909f1b81254dfd6d62a3c4d590d1330085eaf786f6ff995617f8c5e562

Analysis

max time kernel
18s
max time network
20s
platform
windows10-2004_x64
resource
win10v2004-20250217-en
resource tags

arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-x64system
submitted
19/02/2025, 19:03

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General

Target

Astra Image Logger.exe
Size

275KB
MD5

a3696dd072443ecb27c0c7f12a14b61f
SHA1

7525f55b0015b8ae66452c3ef143c18325ff9bd0
SHA256

8807b5909f1b81254dfd6d62a3c4d590d1330085eaf786f6ff995617f8c5e562
SHA512

aaba4ed34e31592ecf3f6c408a89aff88891d6ca9dcd3b8073f84ac6371ef7626e0d6783cf23fcfd7b055944c1a739cc64543986bc4cb4a95ba96def5af8a6ed
SSDEEP

6144:zf+BLtABPDwnBoKVjuGHm0uu4zblYeJ7lA1D03v9:AnXjm0uu4/lYeM1De9

Score

10^/10

44caliber spyware stealer

Malware Config

Extracted

Family

44caliber

https://discord.com/api/webhooks/1067305012188958802/Toi3qZ0OM4SmK4Z6bWOUhNfyduj98KvQjF8a_1cAjycHP2nSnt94ILWCXAZ6BeViBqUy

Signatures

44Caliber
An open source infostealer written in C#.
stealer 44caliber
44Caliber family
44caliber
Reads user/profile data of web browsers 3 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

Credentials from Web Browsers
T1555.003
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
1	freegeoip.app
2	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 opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	Astra Image Logger.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	Astra Image Logger.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1228	Astra Image Logger.exe
1228	Astra Image Logger.exe
1228	Astra Image Logger.exe
1228	Astra Image Logger.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1228	Astra Image Logger.exe

C:\Users\Admin\AppData\Local\Temp\Astra Image Logger.exe
"C:\Users\Admin\AppData\Local\Temp\Astra Image Logger.exe"
1⤵
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1228

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

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

Replay Monitor

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Downloads

C:\ProgramData\44\Process.txt

Filesize
740B

MD5
fb443c4c4e74b3557e9f66c533b5f7bb

SHA1
efc9ebeccc6760ded28bc2b9846951e6096c38a6

SHA256
8ff04f197429085057757bd0ce19f46ccebcc1910b020f4ea20f9da0fefa5534

SHA512
7eb2c3f9a8d40657e30dc8bd670d14dc4c2ada7d0216198dd83ab1b2de0f21e1a2438b54c1fb99e09deb08f1261841ed62713a458afbe5d8401cc4d7e65fac34

Download Submit
C:\ProgramData\44\Process.txt

Filesize
1KB

MD5
b89b8d5774a52f17af8840423b71aced

SHA1
8cc66e6e877a9ae2652f99bf30e54a0d2390daba

SHA256
b700e079312b198d8e9e8be1092de824e3ab350ea01b220c8182a834412da7c1

SHA512
57a0f4ccd7913f84533140dfd1103daf9c9acc0bcacde200d8f214d6377b4fa1c02a1c7793807301b54eb5549ff1428bfd8d7922803c8e9bffa006fce1d17fff

Download Submit
memory/1228-0-0x00007FFAC0C53000-0x00007FFAC0C55000-memory.dmp

Filesize
8KB

Download
memory/1228-1-0x000001FE72930000-0x000001FE7297C000-memory.dmp

Filesize
304KB

Download
memory/1228-31-0x00007FFAC0C50000-0x00007FFAC1711000-memory.dmp

Filesize
10.8MB

Download
memory/1228-121-0x00007FFAC0C50000-0x00007FFAC1711000-memory.dmp

Filesize
10.8MB

Download