44caliber | 8807b5909f1b81254dfd6d62a3c4d590d1330085eaf786f6ff995617f8c5e562

Resubmissions

Analysis

max time kernel
118s
max time network
129s
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, 19:24

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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
2	freegeoip.app
1	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
2100	AstraImageLogger.exe
2100	AstraImageLogger.exe
2100	AstraImageLogger.exe
2100	AstraImageLogger.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2100	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:2100

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

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Downloads

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

Filesize
412B

MD5
0bc432962ce6e4aaacaaaa778c3eede2

SHA1
90bad84b0304cc13482165ffb1ab077617c1e5f1

SHA256
2e7f271a4af93954b3e943409702b5c187e6dcaa034180f80f79133feb082184

SHA512
2a70d1bb098f5f6332284030b6e287b3fdf6d806b00197dd38c00c07fb7d15ecc52ecdd775f46b5fdd42b8837e15cf5b7e7853bc9b424c61482e684dad14414e

Download Submit
C:\Users\Admin\AppData\Local\44\Process.txt

Filesize
771B

MD5
d98fa29db3278b501042b54661993bd7

SHA1
aaebc6ecb16418a442f56a1ceeb522ef266f18de

SHA256
7946fb11b8337cffdbdba8bcab8f2882cbf1d5223fc2478ef7c75423012ddd70

SHA512
4c3f72f295231dffdb376e2aa86ef97f746acc80507b97f78c8ee20b470a3f07c2be55aea9d8c11446defe4659018b5c4faa71d76a40222428e2dc166cb0a710

Download Submit
C:\Users\Admin\AppData\Local\44\Process.txt

Filesize
1KB

MD5
1ba5ef4bf56e9816966f6ed981268c16

SHA1
345e4dc5857db071e049fd8260a88a6794e3e021

SHA256
d66b3601519a1b5f66849ee9d99ec644b19b65208e1f52af8de361b1357a03b5

SHA512
e49b9b037bcc43ad2b379f47b9267011c6417d9b968af7efda95c70081262e755f369283a4d39d20dcf6169147dba982d368ec088272f64af6f119cfaf42015b

Download Submit
memory/2100-0-0x00007FFAD2B93000-0x00007FFAD2B95000-memory.dmp

Filesize
8KB

Download
memory/2100-1-0x00000272F26C0000-0x00000272F270C000-memory.dmp

Filesize
304KB

Download
memory/2100-33-0x00007FFAD2B90000-0x00007FFAD3651000-memory.dmp

Filesize
10.8MB

Download
memory/2100-123-0x00000272F4E30000-0x00000272F4FD9000-memory.dmp

Filesize
1.7MB

Download
memory/2100-124-0x00007FFAD2B90000-0x00007FFAD3651000-memory.dmp

Filesize
10.8MB

Download