44caliber | 3c5606af64bc6d9e74aae62b177b9a0a5b16a86ff68f8b2925ad8971f9933038

Analysis

max time kernel
147s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
14-03-2024 13:33

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General

Target

c8bc237c1c9a16a0b61fe14f020a4680.exe
Size

252KB
MD5

c8bc237c1c9a16a0b61fe14f020a4680
SHA1

180816de04c2dcc1bed74070afac06b740d91318
SHA256

3c5606af64bc6d9e74aae62b177b9a0a5b16a86ff68f8b2925ad8971f9933038
SHA512

0781b3ace5353840769085d1dd443323e37bd09d7f52db62cedfd102f424a6d7b4da7fac7e23b004a3bb8487e9a1a2c83ac4f3bf424273d47fe54710d04f98c9
SSDEEP

3072:F07eU2iSjjuUPFLpsXMZgPBU13oNod6bcN9ToZ8E2PBfH4Ekz1eaMjAmectm13hv:SeUyjPjmPBUqN26bWW8EUJY1z1eRbp2

Score

10^/10

44caliber spyware stealer

Malware Config

Extracted

Family

44caliber

https://discord.com/api/webhooks/868196565515390987/7Jj72FAQ3nmAQ7X65Vp30BjA9kjuE3DDz3XgiNTRUNUr9fbEC6Rznra0GuxDjkoxkX4A

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
5	freegeoip.app
7	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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	c8bc237c1c9a16a0b61fe14f020a4680.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	c8bc237c1c9a16a0b61fe14f020a4680.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2480	c8bc237c1c9a16a0b61fe14f020a4680.exe
2480	c8bc237c1c9a16a0b61fe14f020a4680.exe
2480	c8bc237c1c9a16a0b61fe14f020a4680.exe
2480	c8bc237c1c9a16a0b61fe14f020a4680.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2480	c8bc237c1c9a16a0b61fe14f020a4680.exe

C:\Users\Admin\AppData\Local\Temp\c8bc237c1c9a16a0b61fe14f020a4680.exe
"C:\Users\Admin\AppData\Local\Temp\c8bc237c1c9a16a0b61fe14f020a4680.exe"
1⤵
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2480

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\Local\44\Process.txt

Filesize
1005B

MD5
6c8cb7908a6689f8e5a522922ef79500

SHA1
01362bbf875026750ec5f16e5366e03a0ebfcc96

SHA256
5e06d175af57368333b013a36050041ac5492540333ba37da4f8cceebf3ffccd

SHA512
5c59552428c2dab8c09dc800817491645af5043830d89714b1661879e733fafb14438ba17f8492a0fed39df2fe36a0bbc1d076859c4b230668ec47ad318193a0

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

Filesize
1KB

MD5
dd133af708d36951cd600dc6a6f9d5ea

SHA1
a751f5933aab25b3416d11ac243522445a2d4ffb

SHA256
a905fa53c39dea14b2ac13948180a37a8b36207935a5a91033353fff0709e877

SHA512
bc0f927123e6269d6a758506cc83d2a08b584aeb7f2854a2b168434dff43ca42e8e25968b9bed8ba6d7482b52b07a94a9f0f086f12e192b9ccf8037e6d959c0d

Download Submit
memory/2480-0-0x0000000000BF0000-0x0000000000C36000-memory.dmp

Filesize
280KB

Download
memory/2480-3-0x00007FFA69300000-0x00007FFA69DC1000-memory.dmp

Filesize
10.8MB

Download
memory/2480-6-0x0000000002EB0000-0x0000000002EC0000-memory.dmp

Filesize
64KB

Download
memory/2480-122-0x00007FFA69300000-0x00007FFA69DC1000-memory.dmp

Filesize
10.8MB

Download