44caliber | 7e00639b962e167ab8463fa871f8fe12f6e38166a497d7ed8cf3a2370053d1f0

Analysis

max time kernel
120s
max time network
121s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
05-11-2024 21:08

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General

Target

123.scr.exe
Size

549KB
MD5

2cd8134f58cdbda71373f5ea79d5a422
SHA1

f30cc8c8056e6943a4114e557615552f16cb8e2f
SHA256

7e00639b962e167ab8463fa871f8fe12f6e38166a497d7ed8cf3a2370053d1f0
SHA512

a6042ab229429830a0e98b17873b68b4799ccde6637e55ff7bbf94eaa6af0d4f89e019fea67a04a04550889be89a3db701372978584569cdd350e86a6a2f65a0
SSDEEP

12288:nYhJzH0hGN8nVY5cdFWOh+0H0uc1k7EIKxih+sgPrv6KfNcyFEOYw76:YfwM+nVMcPVY0U7qHKxugjdeyFm

Score

10^/10

44caliber spyware stealer

Malware Config

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	123.scr.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	123.scr.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3056	123.scr.exe
3056	123.scr.exe
3056	123.scr.exe
3056	123.scr.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3056	123.scr.exe

C:\Users\Admin\AppData\Local\Temp\123.scr.exe
"C:\Users\Admin\AppData\Local\Temp\123.scr.exe"
1⤵
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3056

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
418B

MD5
9a3e0f3851e79ed030fccb722c020ea2

SHA1
fb921b711878f1c4e146af7c993bb3337c98843b

SHA256
9d3f850723ed100fa45d367ce514944e10e08f7e100d3804897a93f67b3bce0d

SHA512
a74dfe281c1e6c785a501cf43004626fc62f5589be5184a9ff43810df2061843268eb535034ad06d363b9a9f4dd84f2015b0f14e7b01a320ac11167ffbd4a67a

Download Submit
memory/3056-0-0x000007FEF58B3000-0x000007FEF58B4000-memory.dmp

Filesize
4KB

Download
memory/3056-1-0x0000000000380000-0x0000000000410000-memory.dmp

Filesize
576KB

Download
memory/3056-2-0x000000001B090000-0x000000001B16C000-memory.dmp

Filesize
880KB

Download
memory/3056-3-0x00000000001B0000-0x00000000001B6000-memory.dmp

Filesize
24KB

Download
memory/3056-4-0x000007FEF58B0000-0x000007FEF629C000-memory.dmp

Filesize
9.9MB

Download
memory/3056-54-0x000007FEF58B0000-0x000007FEF629C000-memory.dmp

Filesize
9.9MB

Download