44caliber | f0340ac2a3eb737c9842542de85cd7f0eda9469f55c6f8c6419055f1a82a8af2

Analysis

max time kernel
4294178s
max time network
121s
platform
windows7_x64
resource
win7-20220223-en
submitted
01-03-2022 18:14

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General

Target

f0340ac2a3eb737c9842542de85cd7f0eda9469f55c6f8c6419055f1a82a8af2.exe
Size

274KB
MD5

84a1932e30c859e08077728d34f7dd74
SHA1

5de9345885356fb54f47957310619bfcd36c0c6f
SHA256

f0340ac2a3eb737c9842542de85cd7f0eda9469f55c6f8c6419055f1a82a8af2
SHA512

2bfe5598509cebae5636fac2eca3000e9390b5152621562584077433709d98bc67dfa4cdf9cdebff3d5cd0a29351a445078113603885483d7d58aac38ba7e496

Score

10^/10

44caliber spyware stealer

Malware Config

Extracted

Family

44caliber

https://discord.com/api/webhooks/943953361051480117/bY4XtF54sBnlCQtX2e-fW-LWeLydoy2U3T2UdT-0mQglWZI4GyB_rry_NrQI2fJJsyVP

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
T1081
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials in Files
T1081
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

4 freegeoip.app
5 freegeoip.app

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

Processes:

f0340ac2a3eb737c9842542de85cd7f0eda9469f55c6f8c6419055f1a82a8af2.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	f0340ac2a3eb737c9842542de85cd7f0eda9469f55c6f8c6419055f1a82a8af2.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	f0340ac2a3eb737c9842542de85cd7f0eda9469f55c6f8c6419055f1a82a8af2.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

f0340ac2a3eb737c9842542de85cd7f0eda9469f55c6f8c6419055f1a82a8af2.exe

pid	process
1720	f0340ac2a3eb737c9842542de85cd7f0eda9469f55c6f8c6419055f1a82a8af2.exe
1720	f0340ac2a3eb737c9842542de85cd7f0eda9469f55c6f8c6419055f1a82a8af2.exe
1720	f0340ac2a3eb737c9842542de85cd7f0eda9469f55c6f8c6419055f1a82a8af2.exe
1720	f0340ac2a3eb737c9842542de85cd7f0eda9469f55c6f8c6419055f1a82a8af2.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

f0340ac2a3eb737c9842542de85cd7f0eda9469f55c6f8c6419055f1a82a8af2.exe

description pid process

Token: SeDebugPrivilege 1720 f0340ac2a3eb737c9842542de85cd7f0eda9469f55c6f8c6419055f1a82a8af2.exe

description	pid	process
Token: SeDebugPrivilege	1720	f0340ac2a3eb737c9842542de85cd7f0eda9469f55c6f8c6419055f1a82a8af2.exe

C:\Users\Admin\AppData\Local\Temp\f0340ac2a3eb737c9842542de85cd7f0eda9469f55c6f8c6419055f1a82a8af2.exe
"C:\Users\Admin\AppData\Local\Temp\f0340ac2a3eb737c9842542de85cd7f0eda9469f55c6f8c6419055f1a82a8af2.exe"
1⤵
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1720

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/1720-54-0x0000000001390000-0x00000000013DA000-memory.dmp

Filesize
296KB

Download
memory/1720-55-0x000007FEF52F3000-0x000007FEF52F4000-memory.dmp

Filesize
4KB

Download
memory/1720-56-0x000000001B1D0000-0x000000001B1D2000-memory.dmp

Filesize
8KB

Download