44caliber | 5ed924877d2133ba8cc49bcc184fc705ec7f245b48a1f1f6ea58efe27a8c9318

Analysis

max time kernel
104s
max time network
142s
platform
windows10-2004_x64
resource
win10v2004-20250314-en
resource tags

arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
submitted
22/03/2025, 00:29

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General

Target

Insidious.exe
Size

274KB
MD5

bd0abf4bc598b5ec4c2dc202130d1ca5
SHA1

3c5e112efab2d799c84be216b2f79ae3842d670c
SHA256

5ed924877d2133ba8cc49bcc184fc705ec7f245b48a1f1f6ea58efe27a8c9318
SHA512

fd2cef1420136a77bb9d43cb69b088c19836df788ef4d4adb89a66ee2cd18511d05dd45510d7293caa3825cbc189dcce9aa2c1d131ee552f3fa9971bc842ddff
SSDEEP

6144:3f+BLtABPDZU0/r7ePNztEObl/afTiylI1D003q:1ULFztEObPv1D3q

Score

10^/10

44caliber spyware stealer

Malware Config

Extracted

Family

44caliber

https://discord.com/api/webhooks/1352794031603712081/f-woauUxsO8FZ8GtPcSrZ_FxrccVOu_QXZdJAg8J3qgh9hizPxYvJ6Hq6QwtqH3P-wl6

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
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 opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	Insidious.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	Insidious.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
5760	Insidious.exe
5760	Insidious.exe
5760	Insidious.exe
5760	Insidious.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	5760	Insidious.exe

C:\Users\Admin\AppData\Local\Temp\Insidious.exe
"C:\Users\Admin\AppData\Local\Temp\Insidious.exe"
1⤵
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:5760

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
1KB

MD5
e75179f92dd1f5129fe2c3461891f6e8

SHA1
6ab0590244dd56a152f5de9a1db8fe9c104c91e3

SHA256
02c2bfde6ade4b4ec93b2e6eccb339be62097fcf2725bbb093d758e2a51e387f

SHA512
5e93cb565f1fd13ac55b075eef7c5edeb67cd09646e7e0f81c04711c125320cd780d282dc978e9816c653c95ce7e622386a7a988799debc83e6f99c92a338be5

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

Filesize
765B

MD5
635ad0d82c3a059ad3c7aefefca5ebe7

SHA1
76b81523f5937450e8bd63a9f2723453bb8c74e2

SHA256
97e578d948ad6c2e829d2ceea5c23477c7065cc0284489ee8bcb416627d3a7f9

SHA512
f6864015cbc024c1523aa3ea829249bc4bc0d991e4fef7c4f90315fd4c095c8db63a3ecbef7100abc12b3ecad29e361fd6b92f6b9cbe15877808dba3b2da8905

Download Submit
memory/5760-0-0x00007FFD86E43000-0x00007FFD86E45000-memory.dmp

Filesize
8KB

Download
memory/5760-1-0x0000014A394B0000-0x0000014A394FA000-memory.dmp

Filesize
296KB

Download
memory/5760-29-0x00007FFD86E40000-0x00007FFD87901000-memory.dmp

Filesize
10.8MB

Download
memory/5760-119-0x0000014A53C20000-0x0000014A53DC9000-memory.dmp

Filesize
1.7MB

Download
memory/5760-120-0x00007FFD86E40000-0x00007FFD87901000-memory.dmp

Filesize
10.8MB

Download