44caliber | 4ea469510ab54fc467022a806c7a88f739412f48f9d432f8c93202199174aa09

Analysis

max time kernel
120s
max time network
125s
platform
windows7_x64
resource
win7-20230831-en
resource tags

arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
submitted
25-09-2023 01:22

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General

Target

d5c05da57fa20048e35e6ef498b3dd0bcb92eaea3997e8a7009b38b8a15c4e86.exe
Size

274KB
MD5

40e3881d6c0898f6a5c24940b54a69a2
SHA1

f3da392ee4fb703255eff7ee8a83f23c2bb02987
SHA256

d5c05da57fa20048e35e6ef498b3dd0bcb92eaea3997e8a7009b38b8a15c4e86
SHA512

9013a696cda9be776f0a5ee66aece8716662121e69c5be056c8567eabed8fea91641e50714962438efb57da1b1ff1d4a2c3211e65be10a9e7833e647f700eb8b
SSDEEP

6144:ef+BLtABPDMtBBfn1Y0gIoHOQZafTy8lI1D0Cbg:1tVvgIoHO+x1DRg

Score

10^/10

44caliber spyware stealer

Malware Config

Extracted

Family

44caliber

https://discord.com/api/webhooks/1155120137612034188/cdy5wHbWmzOOyiX6nZbn5OlBuBidB8er7f1281hl7JRUP1iVFGnh9s57SwGqJtsdtgrx

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.

Processes:

flow ioc

2 freegeoip.app
3 freegeoip.app

flow	ioc
2	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:

d5c05da57fa20048e35e6ef498b3dd0bcb92eaea3997e8a7009b38b8a15c4e86.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	d5c05da57fa20048e35e6ef498b3dd0bcb92eaea3997e8a7009b38b8a15c4e86.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	d5c05da57fa20048e35e6ef498b3dd0bcb92eaea3997e8a7009b38b8a15c4e86.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

d5c05da57fa20048e35e6ef498b3dd0bcb92eaea3997e8a7009b38b8a15c4e86.exe

pid	process
2248	d5c05da57fa20048e35e6ef498b3dd0bcb92eaea3997e8a7009b38b8a15c4e86.exe
2248	d5c05da57fa20048e35e6ef498b3dd0bcb92eaea3997e8a7009b38b8a15c4e86.exe
2248	d5c05da57fa20048e35e6ef498b3dd0bcb92eaea3997e8a7009b38b8a15c4e86.exe
2248	d5c05da57fa20048e35e6ef498b3dd0bcb92eaea3997e8a7009b38b8a15c4e86.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

d5c05da57fa20048e35e6ef498b3dd0bcb92eaea3997e8a7009b38b8a15c4e86.exe

description pid process

Token: SeDebugPrivilege 2248 d5c05da57fa20048e35e6ef498b3dd0bcb92eaea3997e8a7009b38b8a15c4e86.exe

description	pid	process
Token: SeDebugPrivilege	2248	d5c05da57fa20048e35e6ef498b3dd0bcb92eaea3997e8a7009b38b8a15c4e86.exe

C:\Users\Admin\AppData\Local\Temp\d5c05da57fa20048e35e6ef498b3dd0bcb92eaea3997e8a7009b38b8a15c4e86.exe
"C:\Users\Admin\AppData\Local\Temp\d5c05da57fa20048e35e6ef498b3dd0bcb92eaea3997e8a7009b38b8a15c4e86.exe"
1⤵
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2248

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
199B

MD5
6281c53cb7157a7767acacf2472d2439

SHA1
1ef4cb09c42e1830a7d369cb90328ed4af8cf9ed

SHA256
de1ff36503eb30bdf0679a0d241cb11400c102198822915b421361cbc172b7d7

SHA512
e280597b86dafa7afc8cd0eecd757c0684d9a10452f7214c63606f8e0b2ae6e9db11805b259a198f427717173e655a10b021473c4700ea5372909379baf74ad2

Download Submit
memory/2248-0-0x0000000000030000-0x000000000007A000-memory.dmp

Filesize
296KB

Download
memory/2248-1-0x000007FEF59E0000-0x000007FEF63CC000-memory.dmp

Filesize
9.9MB

Download
memory/2248-2-0x000000001B240000-0x000000001B2C0000-memory.dmp

Filesize
512KB

Download
memory/2248-50-0x000007FEF59E0000-0x000007FEF63CC000-memory.dmp

Filesize
9.9MB

Download