44caliber | 228ee56c9ca55a911f1c0789b58050e408d14a7fbc21bb1ef3a41426a2dae840

Analysis

max time kernel
140s
max time network
158s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
05-02-2024 06:23

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General

Target

914350a00cb299d2807c459fd950e750.exe
Size

495KB
MD5

914350a00cb299d2807c459fd950e750
SHA1

8df271a04e4e45e1e6210f1f01b517d71b9236f4
SHA256

228ee56c9ca55a911f1c0789b58050e408d14a7fbc21bb1ef3a41426a2dae840
SHA512

d15f3d2914c28561e4b5f2466f3651e4eba7d175dd76d9232923dccf7d4abf154670991d74c5949c8fe79349808b834ffde8e5833b20ca8d09e955504ad08a06
SSDEEP

6144:dfptJNaTZTXr1u3P55Z9JZ1145i4Hw6a3eOU3gkWtXP6x08lZO8oLCGRcgi6Ov4W:dfpts7hiL9JZ1KB/dDgyHZoLM6zG

Score

10^/10

44caliber spyware stealer vmprotect

Malware Config

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

VMProtect packed file 1 IoCs

Detects executables packed with VMProtect commercial packer.

vmprotect

Processes:

resource	yara_rule
behavioral2/memory/1776-0-0x00000000002D0000-0x00000000003BA000-memory.dmp	vmprotect

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

3 freegeoip.app
4 freegeoip.app

flow	ioc
3	freegeoip.app
4	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:

914350a00cb299d2807c459fd950e750.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	914350a00cb299d2807c459fd950e750.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	914350a00cb299d2807c459fd950e750.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

914350a00cb299d2807c459fd950e750.exe

pid	process
1776	914350a00cb299d2807c459fd950e750.exe
1776	914350a00cb299d2807c459fd950e750.exe
1776	914350a00cb299d2807c459fd950e750.exe
1776	914350a00cb299d2807c459fd950e750.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

914350a00cb299d2807c459fd950e750.exe

description pid process

Token: SeDebugPrivilege 1776 914350a00cb299d2807c459fd950e750.exe

description	pid	process
Token: SeDebugPrivilege	1776	914350a00cb299d2807c459fd950e750.exe

C:\Users\Admin\AppData\Local\Temp\914350a00cb299d2807c459fd950e750.exe
"C:\Users\Admin\AppData\Local\Temp\914350a00cb299d2807c459fd950e750.exe"
1⤵
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1776

Network

MITRE ATT&CK Matrix ATT&CK v13

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

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\ProgramData\44\Process.txt
Filesize
1KB

MD5
51f0ffff42f158fd24da03c39ad6b952

SHA1
3a4d0a58e37551f05757569b4f317343cfd1056b

SHA256
e9d825b136157181385987f4485956cab627bd3e0ccf6c03fa75a248ee969559

SHA512
07f1925886987775617faf15ebca9fe0c5b47c497d6f74b3632a379fc99044ccec46058597c2f3663fdc9a6176f9291c620c21c275d4a612a88d95cda2515796

Download Submit
memory/1776-0-0x00000000002D0000-0x00000000003BA000-memory.dmp

Filesize
936KB

Download
memory/1776-1-0x00007FF8C28C0000-0x00007FF8C3381000-memory.dmp

Filesize
10.8MB

Download
memory/1776-2-0x000000001B100000-0x000000001B110000-memory.dmp

Filesize
64KB

Download
memory/1776-3-0x0000000000B60000-0x0000000000B70000-memory.dmp

Filesize
64KB

Download
memory/1776-5-0x0000000000B60000-0x0000000000B61000-memory.dmp

Filesize
4KB

Download
memory/1776-4-0x0000000000B60000-0x0000000000B61000-memory.dmp

Filesize
4KB

Download
memory/1776-123-0x00007FF8C28C0000-0x00007FF8C3381000-memory.dmp

Filesize
10.8MB

Download