44caliber | be163731cfe152309f2f36332968aa275edef44ede0544d9fa37d26ce530cb77

Analysis

max time kernel
122s
max time network
126s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
31-12-2023 13:18

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

37ac48c6a31ec8e83e4b92f03e729917.exe
Size

274KB
MD5

37ac48c6a31ec8e83e4b92f03e729917
SHA1

ae3fb437257f048177223eff1df8f4a009aa6545
SHA256

be163731cfe152309f2f36332968aa275edef44ede0544d9fa37d26ce530cb77
SHA512

9209bf598ee9caa514700921cea8a2e788ce76eb03bf7acb0f21c462859974792d6bcf41d57a0578db90d79a86355556ed87717ee15caf4a5019448fe8d88c30
SSDEEP

6144:Gf+BLtABPD9NF/DVGK7zeNL+dN41V6GIeyXyRA1D0kj2:wNKK7zeNL2Y69eyXX1DL2

Score

10^/10

44caliber spyware stealer

Malware Config

Extracted

Family

44caliber

https://discordapp.com/api/webhooks/859014405580783637/J-rOLcLQORAp4rSIpre0H46Lhmzd8QK1hgRFNA4mqYSEz6dtJRq9HsK-id725NgqZTvK

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:

37ac48c6a31ec8e83e4b92f03e729917.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	37ac48c6a31ec8e83e4b92f03e729917.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	37ac48c6a31ec8e83e4b92f03e729917.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

37ac48c6a31ec8e83e4b92f03e729917.exe

pid	process
3048	37ac48c6a31ec8e83e4b92f03e729917.exe
3048	37ac48c6a31ec8e83e4b92f03e729917.exe
3048	37ac48c6a31ec8e83e4b92f03e729917.exe
3048	37ac48c6a31ec8e83e4b92f03e729917.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

37ac48c6a31ec8e83e4b92f03e729917.exe

description pid process

Token: SeDebugPrivilege 3048 37ac48c6a31ec8e83e4b92f03e729917.exe

description	pid	process
Token: SeDebugPrivilege	3048	37ac48c6a31ec8e83e4b92f03e729917.exe

C:\Users\Admin\AppData\Local\Temp\37ac48c6a31ec8e83e4b92f03e729917.exe
"C:\Users\Admin\AppData\Local\Temp\37ac48c6a31ec8e83e4b92f03e729917.exe"
1⤵
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3048

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\Roaming\44\Process.txt

Filesize
397B

MD5
c410789a149bf9097a383a46ae6e9b4d

SHA1
5b725d563bc72710f324873d6e50d95d6389ec19

SHA256
db2e7a1bf347e66e9857705f566dab8691e34244a95927db7fdcb5c5acecedf7

SHA512
b56ea6f1b3a269a7f8248cf78949ab92c8d65d10f81451e47405f9e2e50bc57d20b8fe002b96e56031da04cbe2ece5a6fa8aba782105bca2c7a1d9e57bd1824a

Download Submit
memory/3048-0-0x0000000000020000-0x000000000006A000-memory.dmp

Filesize
296KB

Download
memory/3048-1-0x000007FEF54A0000-0x000007FEF5E8C000-memory.dmp

Filesize
9.9MB

Download
memory/3048-2-0x0000000002070000-0x00000000020F0000-memory.dmp

Filesize
512KB

Download
memory/3048-49-0x000007FEF54A0000-0x000007FEF5E8C000-memory.dmp

Filesize
9.9MB

Download