44caliber | 99596eeef37785562b8b1208dbaa6e7e2d9e83056becb43d0b31f01216888fc0

Analysis

max time kernel
53s
max time network
55s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
23-09-2024 09:58

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General

Target

NurikCrack/nurik/NursultanInstall.exe
Size

303KB
MD5

face0aff265464e545a9073824a5874d
SHA1

04a59c0f10af4e1febaef3a70924d45df8834f4c
SHA256

2fb096a7b9847060f61b8f936b5462fdc60d37b2bc1e9bb1bf03e828e92cdf48
SHA512

9409ecd708da4f57b133546e1ace6aa78e99fa98de58c8e70608a7c138f7d1a0cd370d062714c68f36f441d9e9212c3e7898c6bf5df8c44b02270ba798c038e8
SSDEEP

6144:y/2T6MDdbICydeBoKEG4pSJfNtvurxmI1D0Po+:y/8bEG4p6fIb1DJ+

Score

10^/10

44caliber credential_access spyware stealer

Malware Config

Extracted

Family

44caliber

https://discord.com/api/webhooks/1255267341017550858/gDHwLRcJ5Z6vxkhOt8ckW-l8jpv2WEDTg_SHcL4h0K-yY_7I4qbWTz88XckD4XUGvzOw

Signatures

44Caliber
An open source infostealer written in C#.
stealer 44caliber
Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003
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

3 freegeoip.app
4 freegeoip.app
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

NursultanInstall.exe

pid process

3156 NursultanInstall.exe
3156 NursultanInstall.exe
3156 NursultanInstall.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

NursultanInstall.exe

description pid process

Token: SeDebugPrivilege 3156 NursultanInstall.exe

flow	ioc
3	freegeoip.app
4	freegeoip.app

pid	process
3156	NursultanInstall.exe
3156	NursultanInstall.exe
3156	NursultanInstall.exe

description	pid	process
Token: SeDebugPrivilege	3156	NursultanInstall.exe

C:\Users\Admin\AppData\Local\Temp\NurikCrack\nurik\NursultanInstall.exe
"C:\Users\Admin\AppData\Local\Temp\NurikCrack\nurik\NursultanInstall.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3156

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

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/3156-0-0x00007FFF213E3000-0x00007FFF213E5000-memory.dmp

Filesize
8KB

Download
memory/3156-1-0x00000258F4D90000-0x00000258F4DE2000-memory.dmp

Filesize
328KB

Download
memory/3156-33-0x00007FFF213E0000-0x00007FFF21EA1000-memory.dmp

Filesize
10.8MB

Download
memory/3156-34-0x00007FFF213E0000-0x00007FFF21EA1000-memory.dmp

Filesize
10.8MB

Download