44caliber | 90da0f65e1b0635663ac57db702127175c8400f7db5dd1384a4346b4d76f279f

Analysis

max time kernel
142s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20230915-en
resource tags

arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
submitted
17-09-2023 12:41

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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

1 freegeoip.app
2 freegeoip.app

flow	ioc
1	freegeoip.app
2	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

4296 interium_crack.exe
4296 interium_crack.exe
4296 interium_crack.exe
4296 interium_crack.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

interium_crack.exe

description pid process

Token: SeDebugPrivilege 4296 interium_crack.exe

pid	process
4296	interium_crack.exe
4296	interium_crack.exe
4296	interium_crack.exe
4296	interium_crack.exe

description	pid	process
Token: SeDebugPrivilege	4296	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:4296

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\44\Process.txt

Filesize
1KB

MD5
f39783d3a0ce02c9d4446b3791ecd351

SHA1
60520e868b53d0446f5d2be9206d87530f62532c

SHA256
1af8187fb4d9cb81df75b5059a7ee90bbcaedd13d01731f4e932ba27587e579e

SHA512
8def800310632b5914da4eb05e978cd81eccd11ad639e33cd64f2940a793eca8439308a2f0af4f6b74d43b34b4cdf77f102795f9e20e56b44d1fe36fc10fbfae

Download Submit
C:\ProgramData\44\Process.txt

Filesize
1KB

MD5
f39783d3a0ce02c9d4446b3791ecd351

SHA1
60520e868b53d0446f5d2be9206d87530f62532c

SHA256
1af8187fb4d9cb81df75b5059a7ee90bbcaedd13d01731f4e932ba27587e579e

SHA512
8def800310632b5914da4eb05e978cd81eccd11ad639e33cd64f2940a793eca8439308a2f0af4f6b74d43b34b4cdf77f102795f9e20e56b44d1fe36fc10fbfae

Download Submit
memory/4296-0-0x000001DC0E680000-0x000001DC0E6CA000-memory.dmp

Filesize
296KB

Download
memory/4296-1-0x00007FFD74C20000-0x00007FFD756E1000-memory.dmp

Filesize
10.8MB

Download
memory/4296-5-0x000001DC0EB10000-0x000001DC0EB20000-memory.dmp

Filesize
64KB

Download
memory/4296-117-0x00007FFD74C20000-0x00007FFD756E1000-memory.dmp

Filesize
10.8MB

Download