44caliber | 80a885b212b9c031aba01e908bdfb66d8b17c62e9e8334d4df8dbfa284dc3f6c

Analysis

max time kernel
120s
max time network
123s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
20-12-2023 13:53

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General

Target

bdf9e31acebcc108b1cec12cbe2b42cd.exe
Size

1.4MB
MD5

bdf9e31acebcc108b1cec12cbe2b42cd
SHA1

ed352a0648cec64d6ec41614e9eaa48e6b23ce59
SHA256

80a885b212b9c031aba01e908bdfb66d8b17c62e9e8334d4df8dbfa284dc3f6c
SHA512

0f628c2a653ebabf33a4391438fee3ced0c2f790bb7b4b0740cc8b13baad78d16cc905547d480b1f32d5b11adbc9985e2a9557c5a51fc8eb3690e2a4217549f5
SSDEEP

24576:ypwgTYi4Rdcvh4yFNNhlcaEFZVQLib/E42clNClR/m6RseOzvmC7di7WW4LASLKo:9gr54yFNNhlcdFZVQLib/z2clNClR/md

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.

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:

bdf9e31acebcc108b1cec12cbe2b42cd.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	bdf9e31acebcc108b1cec12cbe2b42cd.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	bdf9e31acebcc108b1cec12cbe2b42cd.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

bdf9e31acebcc108b1cec12cbe2b42cd.exe

pid	process
1304	bdf9e31acebcc108b1cec12cbe2b42cd.exe
1304	bdf9e31acebcc108b1cec12cbe2b42cd.exe
1304	bdf9e31acebcc108b1cec12cbe2b42cd.exe
1304	bdf9e31acebcc108b1cec12cbe2b42cd.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

bdf9e31acebcc108b1cec12cbe2b42cd.exe

description pid process

Token: SeDebugPrivilege 1304 bdf9e31acebcc108b1cec12cbe2b42cd.exe

description	pid	process
Token: SeDebugPrivilege	1304	bdf9e31acebcc108b1cec12cbe2b42cd.exe

C:\Users\Admin\AppData\Local\Temp\bdf9e31acebcc108b1cec12cbe2b42cd.exe
"C:\Users\Admin\AppData\Local\Temp\bdf9e31acebcc108b1cec12cbe2b42cd.exe"
1⤵
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1304

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

memory/1304-0-0x00000000002E0000-0x0000000000456000-memory.dmp

Filesize
1.5MB

Download
memory/1304-1-0x000007FEF5F80000-0x000007FEF696C000-memory.dmp

Filesize
9.9MB

Download
memory/1304-2-0x00000000021B0000-0x0000000002230000-memory.dmp

Filesize
512KB

Download
memory/1304-3-0x00000000002C0000-0x00000000002CA000-memory.dmp

Filesize
40KB

Download
memory/1304-50-0x00000000021B0000-0x0000000002230000-memory.dmp

Filesize
512KB

Download
memory/1304-51-0x000007FEF5F80000-0x000007FEF696C000-memory.dmp

Filesize
9.9MB

Download