44caliber | 89776cccb48ad220d19e203d764955930907f60142f6c71b6cd32c6decb6867d

Analysis

max time kernel
74s
max time network
77s
platform
windows10-1703_x64
resource
win10-20230915-en
resource tags

arch:x64arch:x86image:win10-20230915-enlocale:en-usos:windows10-1703-x64system
submitted
03-10-2023 11:55

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General

Target

f17c1d86bdbdb7e6bae2034ec80231638bd3312dd75a1f5b6fe55731a3a56433.exe
Size

274KB
MD5

7c02408a83fa049887df06c7c0c3f301
SHA1

2ced507a793f00e49648f0dccb08a304995434d3
SHA256

f17c1d86bdbdb7e6bae2034ec80231638bd3312dd75a1f5b6fe55731a3a56433
SHA512

04d3747ca6d1891760b3b444ebb3152bd42d1a4e21a4c9ff940b188e8c614a55dd44e09c89af49eadd56775f1ea29f4e7ac6a4cbd50728cc61032b4067c79896
SSDEEP

6144:6f+BLtABPDslRpZrQWT0IQZQZ9afTyUlI1D03oK:5lmK0IQZQdZ1DLK

Score

10^/10

44caliber spyware stealer

Malware Config

Extracted

Family

44caliber

https://discord.com/api/webhooks/1158386448026849410/FtcZKAlq7edVMUGk395SXV3Q9JN9qbNFGOqPx7vDhxDM_to09iUh6gk0PVk4dwi2gGuA

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:

f17c1d86bdbdb7e6bae2034ec80231638bd3312dd75a1f5b6fe55731a3a56433.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	f17c1d86bdbdb7e6bae2034ec80231638bd3312dd75a1f5b6fe55731a3a56433.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	f17c1d86bdbdb7e6bae2034ec80231638bd3312dd75a1f5b6fe55731a3a56433.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

f17c1d86bdbdb7e6bae2034ec80231638bd3312dd75a1f5b6fe55731a3a56433.exe

pid	process
5048	f17c1d86bdbdb7e6bae2034ec80231638bd3312dd75a1f5b6fe55731a3a56433.exe
5048	f17c1d86bdbdb7e6bae2034ec80231638bd3312dd75a1f5b6fe55731a3a56433.exe
5048	f17c1d86bdbdb7e6bae2034ec80231638bd3312dd75a1f5b6fe55731a3a56433.exe
5048	f17c1d86bdbdb7e6bae2034ec80231638bd3312dd75a1f5b6fe55731a3a56433.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

f17c1d86bdbdb7e6bae2034ec80231638bd3312dd75a1f5b6fe55731a3a56433.exe

description pid process

Token: SeDebugPrivilege 5048 f17c1d86bdbdb7e6bae2034ec80231638bd3312dd75a1f5b6fe55731a3a56433.exe

description	pid	process
Token: SeDebugPrivilege	5048	f17c1d86bdbdb7e6bae2034ec80231638bd3312dd75a1f5b6fe55731a3a56433.exe

C:\Users\Admin\AppData\Local\Temp\f17c1d86bdbdb7e6bae2034ec80231638bd3312dd75a1f5b6fe55731a3a56433.exe
"C:\Users\Admin\AppData\Local\Temp\f17c1d86bdbdb7e6bae2034ec80231638bd3312dd75a1f5b6fe55731a3a56433.exe"
1⤵
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:5048

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

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Downloads

C:\Users\Admin\AppData\Local\44\Process.txt

Filesize
307B

MD5
4d2b2bd776d631e6d90163781ad8a0b8

SHA1
c567a8f36fd67351cba0b97bbc683f3157d32cfb

SHA256
f45c91ab330c1d65df0667779ee1c60a89fe8276f42ed955c32a332a786b8cf7

SHA512
1bbbe17153861acf8214edfe143601697a4e7838b5d83cf59d8a436b9ade8359bfdc0dcee233dcf35e6b0ec175d656e2bcea706433c4bac2a48a6cb3c1fd29fb

Download Submit
C:\Users\Admin\AppData\Local\44\Process.txt

Filesize
744B

MD5
95cbd842f4685fb97143bafa9650a626

SHA1
4908d869a4d74274b9c8e9e9a5a9eb6204b429ef

SHA256
f0bde727be7320a1875e4d3cb14b65db0296e3640f129d3672a81c1822c12f27

SHA512
5dc427d9f520a1e3f3f4991e8594dd79798314e97ff545aff2447940c76e3db872956754a302b94ee7379b40aaad12f5dbdb8678bd98d71903114818c7213f5e

Download Submit
memory/5048-0-0x0000022230940000-0x000002223098A000-memory.dmp

Filesize
296KB

Download
memory/5048-20-0x00007FFCFB0B0000-0x00007FFCFBA9C000-memory.dmp

Filesize
9.9MB

Download
memory/5048-21-0x00000222325D0000-0x00000222325E0000-memory.dmp

Filesize
64KB

Download
memory/5048-94-0x00007FFCFB0B0000-0x00007FFCFBA9C000-memory.dmp

Filesize
9.9MB

Download