44caliber | 4557cb6de38a939358273d7d6a1f112ae08ef2c346fea7b5a9f4db4916214d3a

Analysis

max time kernel
145s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
30-12-2023 14:19

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

1b38873770387cbb4a6f50acb3fabf4e.exe
Size

1.2MB
MD5

1b38873770387cbb4a6f50acb3fabf4e
SHA1

e28c6001fc49fb3ac0772f21e94b1d9f9f09d884
SHA256

4557cb6de38a939358273d7d6a1f112ae08ef2c346fea7b5a9f4db4916214d3a
SHA512

de5bcfed2490544ef21cf5c409ea06840a34518ac493922f8e822419c1a11ddada50dd63f4d6a780763c7997442aecf7e60c5b02ace3a27d8a9675b69744b368
SSDEEP

24576:q99ntjNH8JnYgIEw2bt/ynbMsQnbGFJqYahyj8Z8PgpcxWs:itjp8JDIEJPbc3vj8yPg+o

Score

10^/10

44caliber spyware stealer

Malware Config

Extracted

Family

44caliber

https://discord.com/api/webhooks/873606332538830858/lYlVeMKza_ZLedpS3S4LgiEdM25T6BM0zeX-3e35GNaPioU47pkpIbvYX2zXUbCa7nLH

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

6 freegeoip.app
9 freegeoip.app
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

1b38873770387cbb4a6f50acb3fabf4e.exe

pid process

4600 1b38873770387cbb4a6f50acb3fabf4e.exe

flow	ioc
6	freegeoip.app
9	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:

1b38873770387cbb4a6f50acb3fabf4e.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	1b38873770387cbb4a6f50acb3fabf4e.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	1b38873770387cbb4a6f50acb3fabf4e.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

1b38873770387cbb4a6f50acb3fabf4e.exe

pid	process
4600	1b38873770387cbb4a6f50acb3fabf4e.exe
4600	1b38873770387cbb4a6f50acb3fabf4e.exe
4600	1b38873770387cbb4a6f50acb3fabf4e.exe
4600	1b38873770387cbb4a6f50acb3fabf4e.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

1b38873770387cbb4a6f50acb3fabf4e.exe

description pid process

Token: SeDebugPrivilege 4600 1b38873770387cbb4a6f50acb3fabf4e.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

1b38873770387cbb4a6f50acb3fabf4e.exe

pid process

4600 1b38873770387cbb4a6f50acb3fabf4e.exe

description	pid	process
Token: SeDebugPrivilege	4600	1b38873770387cbb4a6f50acb3fabf4e.exe

C:\Users\Admin\AppData\Local\Temp\1b38873770387cbb4a6f50acb3fabf4e.exe
"C:\Users\Admin\AppData\Local\Temp\1b38873770387cbb4a6f50acb3fabf4e.exe"
1⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:4600

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

Loading Replay Monitor...

Downloads

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

Filesize
105B

MD5
2e9d094dda5cdc3ce6519f75943a4ff4

SHA1
5d989b4ac8b699781681fe75ed9ef98191a5096c

SHA256
c84c98bbf5e0ef9c8d0708b5d60c5bb656b7d6be5135d7f7a8d25557e08cf142

SHA512
d1f7eed00959e902bdb2125b91721460d3ff99f3bdfc1f2a343d4f58e8d4e5e5a06c0c6cdc0379211c94510f7c00d7a8b34fa7d0ca0c3d54cbbe878f1e9812b7

Download Submit
memory/4600-0-0x0000000000E70000-0x0000000001222000-memory.dmp

Filesize
3.7MB

Download
memory/4600-2-0x0000000074740000-0x0000000074EF0000-memory.dmp

Filesize
7.7MB

Download
memory/4600-1-0x0000000000E70000-0x0000000001222000-memory.dmp

Filesize
3.7MB

Download
memory/4600-3-0x0000000006060000-0x0000000006070000-memory.dmp

Filesize
64KB

Download
memory/4600-13-0x0000000006BA0000-0x0000000006C32000-memory.dmp

Filesize
584KB

Download
memory/4600-38-0x0000000007570000-0x0000000007B14000-memory.dmp

Filesize
5.6MB

Download
memory/4600-130-0x0000000007450000-0x00000000074B6000-memory.dmp

Filesize
408KB

Download
memory/4600-134-0x0000000000E70000-0x0000000001222000-memory.dmp

Filesize
3.7MB

Download
memory/4600-135-0x0000000074740000-0x0000000074EF0000-memory.dmp

Filesize
7.7MB

Download