44caliber | f6e4515313b2edc227f40a55d731479f7ef7562b911ffc3f8058bfcf979d544b

Analysis

max time kernel
121s
max time network
125s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
01-02-2024 07:22

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General

Target

864834b04458cd1d9962be39ff55aee3.exe
Size

275KB
MD5

864834b04458cd1d9962be39ff55aee3
SHA1

984bcaf6e8ed6cc94937116556f8f585cb0f5417
SHA256

f6e4515313b2edc227f40a55d731479f7ef7562b911ffc3f8058bfcf979d544b
SHA512

8518bdc620c8de8f41f2b05aefa81114c0bcba4f7d03ebdcede97edffa1c6c4d7e57bbc0da4fd26642e601a470de91124ac260e50df2c64ec1e95aeb5000ceb2
SSDEEP

6144:qf+BLtABPD9FBWKXsSlrVPl/9rHxlqQy8HRA190DuH:oFsSlrVPlJxlNyh19DH

Score

10^/10

44caliber spyware stealer

Malware Config

Extracted

Family

44caliber

https://discord.com/api/webhooks/870581345427005441/UjrKmnTLwya1NxpTUmifD6bHBh3H7Mn_MRUKUdVkdaAZA7DCMhJguLjz7KVW5wv2RDfj

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
4	freegeoip.app
5	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	864834b04458cd1d9962be39ff55aee3.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	864834b04458cd1d9962be39ff55aee3.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2908	864834b04458cd1d9962be39ff55aee3.exe
2908	864834b04458cd1d9962be39ff55aee3.exe
2908	864834b04458cd1d9962be39ff55aee3.exe
2908	864834b04458cd1d9962be39ff55aee3.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2908	864834b04458cd1d9962be39ff55aee3.exe

C:\Users\Admin\AppData\Local\Temp\864834b04458cd1d9962be39ff55aee3.exe
"C:\Users\Admin\AppData\Local\Temp\864834b04458cd1d9962be39ff55aee3.exe"
1⤵
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2908

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

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Downloads

C:\Users\Admin\AppData\Roaming\44\Process.txt

Filesize
397B

MD5
b5a244010bb460649220babcb0665e90

SHA1
1fbc99ee507336531f56977b849f76da0774524d

SHA256
7962150d431641119583baa7b4250b6ac750681eb79cddeae5aeb2089cf4d5ee

SHA512
7502cb69563453429ef9ac68ac34e8eaebb698d661b782ce6e6b388ca0fc6da67c0d4ba5a029f4751da2ed804f4f979705d9cb2135b48010ca910fd7f36b1c51

Download Submit
memory/2908-0-0x0000000000B40000-0x0000000000B8C000-memory.dmp

Filesize
304KB

Download
memory/2908-1-0x000007FEF5310000-0x000007FEF5CFC000-memory.dmp

Filesize
9.9MB

Download
memory/2908-2-0x000000001B1F0000-0x000000001B270000-memory.dmp

Filesize
512KB

Download
memory/2908-48-0x000007FEF5310000-0x000007FEF5CFC000-memory.dmp

Filesize
9.9MB

Download