44caliber | 90da0f65e1b0635663ac57db702127175c8400f7db5dd1384a4346b4d76f279f

Analysis

max time kernel
146s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20230915-en
resource tags

arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
submitted
12-10-2023 19:07

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General

Target

interium_crack.exe
Size

274KB
MD5

7304d91a9b1a9aa8b85e3922c134c1fc
SHA1

fda49f2c05e7446d7b40246d6346782ff4ca8250
SHA256

90da0f65e1b0635663ac57db702127175c8400f7db5dd1384a4346b4d76f279f
SHA512

6ca6b4dee184faa10e43f678bec5131ef05833979d1a0bee7a6c87cd9a5add9c1857f2e9d97d9e2e5bcb69eaf73fa938f6ec2f765ae70bd90dcd53165a7521bc
SSDEEP

6144:4f+BLtABPDj0LF5jsP78dEEoIrceRsMsmZ0MI1e0C7L:c0PjfSEoIrVk1ejL

Score

10^/10

44caliber spyware stealer

Malware Config

Extracted

Family

44caliber

https://discord.com/api/webhooks/1151153702359535737/SNgzUJ16Y9V-Kp27Hyby1d0TAb5FgALa9RCHRaKLGuk5MliboFTb9Cg-KDoL2MAYQLOp

Signatures

44Caliber
An open source infostealer written in C#.
stealer 44caliber
Reads user/profile data of web browsers 2 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
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.

Processes:

flow ioc

2 freegeoip.app
1 freegeoip.app

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

Processes:

interium_crack.exe

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

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

interium_crack.exe

pid process

2876 interium_crack.exe
2876 interium_crack.exe
2876 interium_crack.exe
2876 interium_crack.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

interium_crack.exe

description pid process

Token: SeDebugPrivilege 2876 interium_crack.exe

pid	process
2876	interium_crack.exe
2876	interium_crack.exe
2876	interium_crack.exe
2876	interium_crack.exe

description	pid	process
Token: SeDebugPrivilege	2876	interium_crack.exe

C:\Users\Admin\AppData\Local\Temp\interium_crack.exe
"C:\Users\Admin\AppData\Local\Temp\interium_crack.exe"
1⤵
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2876

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\ProgramData\44\Process.txt
Filesize
534B

MD5
2a37d9c6fb2480cbab4342ce55835830

SHA1
38f26486d9642d80979516e831655999dbc8cdb6

SHA256
f6e202c1bce1cecc7a5e2bda4ad5a6212e5d597998137724bf287e44e9565762

SHA512
e62d5ca2405de2dfe1f7e6ebe9c418e0a9ffbf1e51f1c372981fa1957f5e55a682046a0949d75e6942830a219cb01277646ab8b379bc34b3cccdb0316d9a246e

Download Submit
C:\ProgramData\44\Process.txt
Filesize
1KB

MD5
b3919ec3d7f97bbc59dd358688b3c954

SHA1
dedddc0caeeb205cfb3a9df0b444116cb127f44e

SHA256
7101a8421ead215384b487bb5397b67b30f49cac656e34b208c59a639aee56af

SHA512
5524e36688bcca512dd672cdf6133411adb74a10528ef80a215f20fa6cc0ed58ab64aaca2e64f45f75c9085b53e4e3ac7a81bcced87038d51fb3538d63881134

Download Submit
memory/2876-0-0x00000219E3950000-0x00000219E399A000-memory.dmp

Filesize
296KB

Download
memory/2876-31-0x00007FF9B4040000-0x00007FF9B4B01000-memory.dmp

Filesize
10.8MB

Download
memory/2876-32-0x00000219E3DF0000-0x00000219E3E00000-memory.dmp

Filesize
64KB

Download
memory/2876-33-0x00007FF9B4040000-0x00007FF9B4B01000-memory.dmp

Filesize
10.8MB

Download
memory/2876-34-0x00000219E3DF0000-0x00000219E3E00000-memory.dmp

Filesize
64KB

Download
memory/2876-120-0x00007FF9B4040000-0x00007FF9B4B01000-memory.dmp

Filesize
10.8MB

Download