44caliber | 4d76bd31c6cb18d229df1ec8fc0c929f37a4cdf694d2c885f1beaeddad3f14d6

Analysis

max time kernel
118s
max time network
126s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
07-03-2024 17:45

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General

Target

b94b9203b9682e94a0600f8ad2896e59.exe
Size

1.1MB
MD5

b94b9203b9682e94a0600f8ad2896e59
SHA1

f3316cebbc21d9becaa7744f92dc1de6b2ee31ff
SHA256

4d76bd31c6cb18d229df1ec8fc0c929f37a4cdf694d2c885f1beaeddad3f14d6
SHA512

31f0912abcf2b57ad0f8324ff1db0857c619c13f21be2833d0553ee5586ef9fdc9ec1ba16483ff111a7572627ae5c0619da1f08b7096ac454b39e9609b0dc913
SSDEEP

12288:wyLyxYjZb/yKJ4S1ebC68hpaBUZc7U4p12N4IWgswpJRhpQtXjpyECP4WchMMd/J:mwbL4SPX0BecnphaJGqcQla

Score

10^/10

44caliber spyware stealer

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
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
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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	b94b9203b9682e94a0600f8ad2896e59.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	b94b9203b9682e94a0600f8ad2896e59.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1300	b94b9203b9682e94a0600f8ad2896e59.exe
1300	b94b9203b9682e94a0600f8ad2896e59.exe
1300	b94b9203b9682e94a0600f8ad2896e59.exe
1300	b94b9203b9682e94a0600f8ad2896e59.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1300	b94b9203b9682e94a0600f8ad2896e59.exe

C:\Users\Admin\AppData\Local\Temp\b94b9203b9682e94a0600f8ad2896e59.exe
"C:\Users\Admin\AppData\Local\Temp\b94b9203b9682e94a0600f8ad2896e59.exe"
1⤵
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1300

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
397B

MD5
e9848ff9f53033f0cce83c7ff4a6d754

SHA1
8b496435b7c111b610113b90d77a28df5961f12e

SHA256
8c4e1d826b5bf926e1d2562e57d1e76a67aef7cc1863ec2d610db5b325211373

SHA512
3c78d8a430abce02eef9835ebeb7f6fa4718b63abc96646581f309c6dd5a01b3b0757191c9f7c0c24ee65c8107104873ba8dea520edf5b110687112e82fd6f67

Download Submit
memory/1300-0-0x0000000000F50000-0x0000000001068000-memory.dmp

Filesize
1.1MB

Download
memory/1300-1-0x000007FEF5720000-0x000007FEF610C000-memory.dmp

Filesize
9.9MB

Download
memory/1300-2-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download
memory/1300-3-0x000000001B070000-0x000000001B0F0000-memory.dmp

Filesize
512KB

Download
memory/1300-49-0x000007FEF5720000-0x000007FEF610C000-memory.dmp

Filesize
9.9MB

Download