44caliber | 8807b5909f1b81254dfd6d62a3c4d590d1330085eaf786f6ff995617f8c5e562

Resubmissions

Analysis

max time kernel
118s
max time network
120s
platform
windows7_x64
resource
win7-20250207-en
resource tags

arch:x64arch:x86image:win7-20250207-enlocale:en-usos:windows7-x64system
submitted
19-02-2025 19:06

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General

Target

AstraImageLogger.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
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

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

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1684	AstraImageLogger.exe
1684	AstraImageLogger.exe
1684	AstraImageLogger.exe
1684	AstraImageLogger.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1684	AstraImageLogger.exe

C:\Users\Admin\AppData\Local\Temp\AstraImageLogger.exe
"C:\Users\Admin\AppData\Local\Temp\AstraImageLogger.exe"
1⤵
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1684

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:\Users\Admin\AppData\Local\44\Process.txt

Filesize
427B

MD5
00fd1f81040ef980660196bd7b0e8352

SHA1
388bf2b8148a246f585db951565e6670f253f114

SHA256
dc666b25bebaf4308305953a2606ebc8df05c79b5a93e39059b85a25e5ef44de

SHA512
313d1a1c3f24edcae6f706ed808cd4ed5d4825438699e97babb97b87133c21b3a1f4e3fe0e8149a53d5b807009500a3d3e631abd671e5d4eddd506ab95c22b59

Download Submit
memory/1684-0-0x000007FEF5403000-0x000007FEF5404000-memory.dmp

Filesize
4KB

Download
memory/1684-1-0x00000000003D0000-0x000000000041C000-memory.dmp

Filesize
304KB

Download
memory/1684-20-0x000007FEF5400000-0x000007FEF5DEC000-memory.dmp

Filesize
9.9MB

Download
memory/1684-52-0x000007FEF5400000-0x000007FEF5DEC000-memory.dmp

Filesize
9.9MB

Download