44caliber | 3ac95607d654c3a0457075744e46c2277e7be98ddb21f1e4c29a98fa6c562876

Analysis

max time kernel
139s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
22-08-2022 20:50

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General

Target

3ac95607d654c3a0457075744e46c2277e7be98ddb21f1e4c29a98fa6c562876.exe
Size

303KB
MD5

74a7ff4c9395b44c406ca8e7ed5dee9b
SHA1

9f2a294a86246658dfae747001e551575e8855d9
SHA256

3ac95607d654c3a0457075744e46c2277e7be98ddb21f1e4c29a98fa6c562876
SHA512

39417987022f08a292cacc47f230db45089c9f92222de407022ae92900ffa13068b3c391881297131f8625347ae088ea0c48279b5d89bbc4d5b6e2a33ad1bf64

Score

10^/10

44caliber spyware stealer

Malware Config

Extracted

Family

44caliber

https://discord.com/api/webhooks/991370448359149568/RQxL-Wum2YoYSXPZfI3xuNcwtnpuYnQk8G0BlkCMwdJqrQOP34mG0-uNULXiYZDZOObD

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
T1081
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials in Files
T1081
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

4 freegeoip.app
5 freegeoip.app
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1368 1560 WerFault.exe 3ac95607d654c3a0457075744e46c2277e7be98ddb21f1e4c29a98fa6c562876.exe

flow	ioc
4	freegeoip.app
5	freegeoip.app

pid	pid_target	process	target process
1368	1560	WerFault.exe	3ac95607d654c3a0457075744e46c2277e7be98ddb21f1e4c29a98fa6c562876.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

3ac95607d654c3a0457075744e46c2277e7be98ddb21f1e4c29a98fa6c562876.exe

pid	process
1560	3ac95607d654c3a0457075744e46c2277e7be98ddb21f1e4c29a98fa6c562876.exe
1560	3ac95607d654c3a0457075744e46c2277e7be98ddb21f1e4c29a98fa6c562876.exe
1560	3ac95607d654c3a0457075744e46c2277e7be98ddb21f1e4c29a98fa6c562876.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

3ac95607d654c3a0457075744e46c2277e7be98ddb21f1e4c29a98fa6c562876.exe

description pid process

Token: SeDebugPrivilege 1560 3ac95607d654c3a0457075744e46c2277e7be98ddb21f1e4c29a98fa6c562876.exe

description	pid	process
Token: SeDebugPrivilege	1560	3ac95607d654c3a0457075744e46c2277e7be98ddb21f1e4c29a98fa6c562876.exe

C:\Users\Admin\AppData\Local\Temp\3ac95607d654c3a0457075744e46c2277e7be98ddb21f1e4c29a98fa6c562876.exe
"C:\Users\Admin\AppData\Local\Temp\3ac95607d654c3a0457075744e46c2277e7be98ddb21f1e4c29a98fa6c562876.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1560

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -u -p 1560 -s 1628
2⤵
- Program crash
PID:1368

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -pss -s 408 -p 1560 -ip 1560
1⤵
PID:4928

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/1560-132-0x0000022C2EA80000-0x0000022C2EAD2000-memory.dmp

Filesize
328KB

Download
memory/1560-133-0x00007FFC9AB30000-0x00007FFC9B5F1000-memory.dmp

Filesize
10.8MB

Download
memory/1560-134-0x00007FFC9AB30000-0x00007FFC9B5F1000-memory.dmp

Filesize
10.8MB

Download