44caliber | 2f763b2468d091bc960bd4317cfed1675304662edae5255da5ef4dfc42e62c1b

Analysis

max time kernel
145s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
26-12-2023 10:22

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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
7	freegeoip.app
9	freegeoip.app

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
4292	66ee6d3be4bf4eac3f989b15c84290f4.exe
4292	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
4292	66ee6d3be4bf4eac3f989b15c84290f4.exe
4292	66ee6d3be4bf4eac3f989b15c84290f4.exe
4292	66ee6d3be4bf4eac3f989b15c84290f4.exe
4292	66ee6d3be4bf4eac3f989b15c84290f4.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4292	66ee6d3be4bf4eac3f989b15c84290f4.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4292	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:4292

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\44\Browsers\Firefox\Bookmarks.txt

Filesize
105B

MD5
2e9d094dda5cdc3ce6519f75943a4ff4

SHA1
5d989b4ac8b699781681fe75ed9ef98191a5096c

SHA256
c84c98bbf5e0ef9c8d0708b5d60c5bb656b7d6be5135d7f7a8d25557e08cf142

SHA512
d1f7eed00959e902bdb2125b91721460d3ff99f3bdfc1f2a343d4f58e8d4e5e5a06c0c6cdc0379211c94510f7c00d7a8b34fa7d0ca0c3d54cbbe878f1e9812b7

Download Submit
memory/4292-0-0x0000000000E00000-0x00000000011AA000-memory.dmp

Filesize
3.7MB

Download
memory/4292-1-0x0000000000E00000-0x00000000011AA000-memory.dmp

Filesize
3.7MB

Download
memory/4292-2-0x0000000074AA0000-0x0000000075250000-memory.dmp

Filesize
7.7MB

Download
memory/4292-3-0x0000000006330000-0x0000000006340000-memory.dmp

Filesize
64KB

Download
memory/4292-4-0x0000000006C90000-0x0000000006D22000-memory.dmp

Filesize
584KB

Download
memory/4292-38-0x00000000076A0000-0x0000000007C44000-memory.dmp

Filesize
5.6MB

Download
memory/4292-130-0x00000000075D0000-0x0000000007636000-memory.dmp

Filesize
408KB

Download
memory/4292-134-0x0000000000E00000-0x00000000011AA000-memory.dmp

Filesize
3.7MB

Download
memory/4292-135-0x0000000074AA0000-0x0000000075250000-memory.dmp

Filesize
7.7MB

Download