44caliber | 2f763b2468d091bc960bd4317cfed1675304662edae5255da5ef4dfc42e62c1b

Analysis

max time kernel
117s
max time network
121s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
19-01-2024 06:29

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General

Target

66ee6d3be4bf4eac3f989b15c84290f4.exe
Size

1.2MB
MD5

66ee6d3be4bf4eac3f989b15c84290f4
SHA1

1eb48fc2d5b17d0c7ff4c94cd49912468c0a6a07
SHA256

2f763b2468d091bc960bd4317cfed1675304662edae5255da5ef4dfc42e62c1b
SHA512

0d293136306bf437e2dff862b5e8e90a9e0c84d7efdc1d4fd12c2aed288b3ec78a8c127082302282e3789bc21d9efe206184c6ed5d6681ccc2318a6c122ca3d1
SSDEEP

24576:IZxrK1d73cWL62qMgqiz6aTCM1C6gHQUb6TPHRvlVk7V0:uxeHbcWDNiFTZ1CzkLHRTk7V

Score

10^/10

44caliber spyware stealer

Malware Config

Extracted

Family

44caliber

https://discord.com/api/webhooks/865584147081461791/cXeUQZDXCjKWrkaJ-3bJrhl6uSAZJXWp5_eKWccL93qrJuspqXX11np6a1xVpZdvlvsU

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.

flow	ioc
4	freegeoip.app
5	freegeoip.app

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
2944	66ee6d3be4bf4eac3f989b15c84290f4.exe
2944	66ee6d3be4bf4eac3f989b15c84290f4.exe

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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	66ee6d3be4bf4eac3f989b15c84290f4.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	66ee6d3be4bf4eac3f989b15c84290f4.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2944	66ee6d3be4bf4eac3f989b15c84290f4.exe
2944	66ee6d3be4bf4eac3f989b15c84290f4.exe
2944	66ee6d3be4bf4eac3f989b15c84290f4.exe
2944	66ee6d3be4bf4eac3f989b15c84290f4.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2944	66ee6d3be4bf4eac3f989b15c84290f4.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2944	66ee6d3be4bf4eac3f989b15c84290f4.exe

C:\Users\Admin\AppData\Local\Temp\66ee6d3be4bf4eac3f989b15c84290f4.exe
"C:\Users\Admin\AppData\Local\Temp\66ee6d3be4bf4eac3f989b15c84290f4.exe"
1⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:2944

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:\ProgramData\44\Process.txt

Filesize
397B

MD5
d05867b613a6f1da4152186fc670e95f

SHA1
dd8827ccd0f640f5482fe73e4ba585e62372efb7

SHA256
f9cbcf7a28bbeea361ac61ba2d1e0249076727892e40447991ace455d5b75f0d

SHA512
1c44557d165d74b120da895c38df8de18d95f7688005c4156d262ba712e713d76771ca96d3cf78c6384b1e3eba1d6595e6c737b538a1adecf390336be2b4f062

Download Submit
memory/2944-0-0x0000000000100000-0x00000000004AA000-memory.dmp

Filesize
3.7MB

Download
memory/2944-2-0x0000000074170000-0x000000007485E000-memory.dmp

Filesize
6.9MB

Download
memory/2944-1-0x0000000000100000-0x00000000004AA000-memory.dmp

Filesize
3.7MB

Download
memory/2944-3-0x0000000005250000-0x0000000005290000-memory.dmp

Filesize
256KB

Download
memory/2944-53-0x0000000000100000-0x00000000004AA000-memory.dmp

Filesize
3.7MB

Download
memory/2944-54-0x0000000074170000-0x000000007485E000-memory.dmp

Filesize
6.9MB

Download