44caliber | 8077c458cca5d446d5699c86d18cd2ed03507f59ab09582a1147e17291f33c65

Analysis

max time kernel
16s
max time network
17s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
16-01-2025 19:17

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General

Target

Robux.exe
Size

274KB
MD5

b3dca103204683157780d5562579d100
SHA1

61a249df0a3ce1849b7047e252a323c9f26e44c4
SHA256

8077c458cca5d446d5699c86d18cd2ed03507f59ab09582a1147e17291f33c65
SHA512

89c4335aafa72a286b34460790abe4aa9e035db269f9b5e451a85c98326aa87b31d60a6742125011a54f421283e11cc5cf56d7fccfdcdff95d36dac21abec556
SSDEEP

6144:Af+BLtABPDOpJTNN6eTSUdZ/pOlYeJqlA1D0FkB:ppYSSUdZ/olYet1DHB

Score

10^/10

44caliber spyware stealer

Malware Config

Extracted

Family

44caliber

https://discord.com/api/webhooks/915691701547446283/wUW0ZMfS9Ea3nfJC3GBW1nyVurXzKmQnFhIAcuEwGucZF2JJhh8YakLcl2RpJb6iFOek

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

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2480	Robux.exe
2480	Robux.exe
2480	Robux.exe
2480	Robux.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2480	Robux.exe

C:\Users\Admin\AppData\Local\Temp\Robux.exe
"C:\Users\Admin\AppData\Local\Temp\Robux.exe"
1⤵
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2480

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
431B

MD5
19655056046947daaab3f22aefdb20e7

SHA1
01ac49cca7b320b87fd351fa9c2a44ef056b3bee

SHA256
8c914264ed02e4435433caacef3092a5369e7b46aade13e4b58b889768a4aef9

SHA512
0f8975c7416bb72f52a9131482222abc444531e1a9b6a251dbae587f80efa3fb39240365d624dc5579542b80244d5e2b697aba64c87027b9cdeaac9e0c91dd35

Download Submit
memory/2480-0-0x000007FEF5BE3000-0x000007FEF5BE4000-memory.dmp

Filesize
4KB

Download
memory/2480-1-0x0000000000FB0000-0x0000000000FFA000-memory.dmp

Filesize
296KB

Download
memory/2480-13-0x000007FEF5BE0000-0x000007FEF65CC000-memory.dmp

Filesize
9.9MB

Download
memory/2480-53-0x000007FEF5BE0000-0x000007FEF65CC000-memory.dmp

Filesize
9.9MB

Download