44caliber | 38957fb3708884f1a8befb0c17b0fa81f57005a5de058772cc12bf357c548eab

Analysis

max time kernel
97s
max time network
98s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
15-09-2024 01:09

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General

Target

38957fb3708884f1a8befb0c17b0fa81f57005a5de058772cc12bf357c548eab.exe
Size

274KB
MD5

c0feb087f1cfa85fdb001e059f4c95c7
SHA1

1d9ab2eb37f85bea36f3e6ded442154181c96964
SHA256

38957fb3708884f1a8befb0c17b0fa81f57005a5de058772cc12bf357c548eab
SHA512

99d641dcebec431d905b83ea89b5b5fadd5c029215345834b604aeca23d25d236bbbe65c2d3179ad9d7597764d1791d9cfd18b3dc2d463acda6e1e72b6159a50
SSDEEP

6144:cf+BLtABPDsth6Ej/UZkI4TjkRy5fafTy4lI1D080T:vtK+I4TjkRyTF1DcT

Score

10^/10

44caliber credential_access spyware stealer

Malware Config

Extracted

Family

44caliber

https://discord.com/api/webhooks/1280107935317495880/Q8mmvXU6Bc1Q-R-2e0aAMsbedaMqyt0txCOBc8XSsTRNeUIepUtoX2DE4a6MxP9SzEFB

Signatures

44Caliber
An open source infostealer written in C#.
stealer 44caliber
Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003
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.

Processes:

flow ioc

4 freegeoip.app
3 freegeoip.app

flow	ioc
4	freegeoip.app
3	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

Processes:

38957fb3708884f1a8befb0c17b0fa81f57005a5de058772cc12bf357c548eab.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	38957fb3708884f1a8befb0c17b0fa81f57005a5de058772cc12bf357c548eab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	38957fb3708884f1a8befb0c17b0fa81f57005a5de058772cc12bf357c548eab.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

38957fb3708884f1a8befb0c17b0fa81f57005a5de058772cc12bf357c548eab.exe

pid	process
968	38957fb3708884f1a8befb0c17b0fa81f57005a5de058772cc12bf357c548eab.exe
968	38957fb3708884f1a8befb0c17b0fa81f57005a5de058772cc12bf357c548eab.exe
968	38957fb3708884f1a8befb0c17b0fa81f57005a5de058772cc12bf357c548eab.exe
968	38957fb3708884f1a8befb0c17b0fa81f57005a5de058772cc12bf357c548eab.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

38957fb3708884f1a8befb0c17b0fa81f57005a5de058772cc12bf357c548eab.exe

description pid process

Token: SeDebugPrivilege 968 38957fb3708884f1a8befb0c17b0fa81f57005a5de058772cc12bf357c548eab.exe

description	pid	process
Token: SeDebugPrivilege	968	38957fb3708884f1a8befb0c17b0fa81f57005a5de058772cc12bf357c548eab.exe

C:\Users\Admin\AppData\Local\Temp\38957fb3708884f1a8befb0c17b0fa81f57005a5de058772cc12bf357c548eab.exe
"C:\Users\Admin\AppData\Local\Temp\38957fb3708884f1a8befb0c17b0fa81f57005a5de058772cc12bf357c548eab.exe"
1⤵
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:968

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

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:\Users\Admin\AppData\Local\44\Process.txt

Filesize
944B

MD5
a597ed38411c95e92088a1c9902602d1

SHA1
6b0429a0bcd6a3e77134b0a64e3e0d3a8d9d0651

SHA256
cbb565a2affdf9fdbc3359639f4c64ab803009063b90d17c440fdca3fb7bd86d

SHA512
137e3b08df59f9e705fd7aa615b1be71b73ea550dde7553435d8586f3a19d9346690c9e29faafd23a73e671b3ac7491e28a68ab817fd960b1e53c3363489d770

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

Filesize
1KB

MD5
1d906294491bfb76cdc9cf3f78155863

SHA1
00c241909cef2f3af8d352572ed9fe8c97de0c01

SHA256
691986fc906f9c158be4831c092f4da7f6da14b57c87cafd761b3473e2e90f69

SHA512
77def6bc0c3a7e8de4ac3af9de9821b88adfa2e70b8f0078c3638cf9d8c5693f316ea59d7d4fd4c4f7d63df1270285e96daafd47c2c66e35dbd5248cf45f9fb6

Download Submit
memory/968-0-0x00007FF86E123000-0x00007FF86E125000-memory.dmp

Filesize
8KB

Download
memory/968-1-0x0000028F61520000-0x0000028F6156A000-memory.dmp

Filesize
296KB

Download
memory/968-31-0x00007FF86E120000-0x00007FF86EBE1000-memory.dmp

Filesize
10.8MB

Download
memory/968-119-0x0000028F7BCA0000-0x0000028F7BE49000-memory.dmp

Filesize
1.7MB

Download
memory/968-120-0x00007FF86E120000-0x00007FF86EBE1000-memory.dmp

Filesize
10.8MB

Download