44caliber | 3ac95607d654c3a0457075744e46c2277e7be98ddb21f1e4c29a98fa6c562876

Analysis

max time kernel
44s
max time network
48s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-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
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1588 1972 WerFault.exe 3ac95607d654c3a0457075744e46c2277e7be98ddb21f1e4c29a98fa6c562876.exe

pid	pid_target	process	target process
1588	1972	WerFault.exe	3ac95607d654c3a0457075744e46c2277e7be98ddb21f1e4c29a98fa6c562876.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

3ac95607d654c3a0457075744e46c2277e7be98ddb21f1e4c29a98fa6c562876.exe

pid	process
1972	3ac95607d654c3a0457075744e46c2277e7be98ddb21f1e4c29a98fa6c562876.exe
1972	3ac95607d654c3a0457075744e46c2277e7be98ddb21f1e4c29a98fa6c562876.exe
1972	3ac95607d654c3a0457075744e46c2277e7be98ddb21f1e4c29a98fa6c562876.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

3ac95607d654c3a0457075744e46c2277e7be98ddb21f1e4c29a98fa6c562876.exe

description pid process

Token: SeDebugPrivilege 1972 3ac95607d654c3a0457075744e46c2277e7be98ddb21f1e4c29a98fa6c562876.exe

description	pid	process
Token: SeDebugPrivilege	1972	3ac95607d654c3a0457075744e46c2277e7be98ddb21f1e4c29a98fa6c562876.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

3ac95607d654c3a0457075744e46c2277e7be98ddb21f1e4c29a98fa6c562876.exe

description	pid	process	target process
PID 1972 wrote to memory of 1588	1972	3ac95607d654c3a0457075744e46c2277e7be98ddb21f1e4c29a98fa6c562876.exe	WerFault.exe
PID 1972 wrote to memory of 1588	1972	3ac95607d654c3a0457075744e46c2277e7be98ddb21f1e4c29a98fa6c562876.exe	WerFault.exe
PID 1972 wrote to memory of 1588	1972	3ac95607d654c3a0457075744e46c2277e7be98ddb21f1e4c29a98fa6c562876.exe	WerFault.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
- Suspicious use of WriteProcessMemory
PID:1972

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -u -p 1972 -s 1184
2⤵
- Program crash
PID:1588

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

memory/1588-55-0x0000000000000000-mapping.dmp

Download
memory/1972-54-0x0000000000BC0000-0x0000000000C12000-memory.dmp

Filesize
328KB

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