44caliber | 738a089b363e1b9f43149def5ae5b136bc9009286e4304e09230e60d0d41e6d0

Analysis

max time kernel
148s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
27-12-2023 13:47

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General

Target

Insidious.exe
Size

274KB
MD5

2080c22a4df9e8c9e476556e63206599
SHA1

5c5393339234228798164654314f0d8de5ce04ca
SHA256

738a089b363e1b9f43149def5ae5b136bc9009286e4304e09230e60d0d41e6d0
SHA512

d07064ad61a4fe469e8fd21ae3a65d5c64e47e4bb73336aab9eaad984a10888e9b4e88d7fa4f442c46a01ccf7910ca5f6df6e278e05680fe6521ad7adebd25b7
SSDEEP

6144:Xf+BLtABPD34JMDSOxIWM8VzZdafTyMlI1D0doN:z4GiWM8Vzdh1DpN

Score

10^/10

44caliber spyware stealer

Malware Config

Extracted

Family

44caliber

https://discord.com/api/webhooks/1189420678399676496/Cv6q-pjb2lOltckEXX8PZeIwdjaBhHevzpPlWHccy6VfWacxjuWV_ETooqcyrrEG3G0e

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
3	freegeoip.app
6	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	Insidious.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	Insidious.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2428	Insidious.exe
2428	Insidious.exe
2428	Insidious.exe
2428	Insidious.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2428	Insidious.exe

C:\Users\Admin\AppData\Local\Temp\Insidious.exe
"C:\Users\Admin\AppData\Local\Temp\Insidious.exe"
1⤵
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2428

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:\ProgramData\44\Process.txt

Filesize
730B

MD5
f93e8c8b6eff54309120f0d3fb54cd37

SHA1
f46496ee8fd506df65bdef763fffdaef099be99c

SHA256
9e18a0fd2a964a7f3fc8c8b3243f2c8258fffda363ddb68e9e6559b9031737d5

SHA512
44ceb728ae6b1d60fd073b9d0b0e2a5df85c8a78171f104318fff37971879e6df14089d4c6fb81ea388ce5bec1ee3427fa40a0f1677ce676f711764c3c31ec6c

Download Submit
C:\ProgramData\44\Process.txt

Filesize
1KB

MD5
3a45150bd6264c615b91bc2c0050b476

SHA1
472ff2da7b04cc5451fcccdcc543cafd5c9ce2e9

SHA256
0832e557085d8fce1ad438127ef3a5da2a1d6b6989179d15a1e3e5985ab0a520

SHA512
81ee404431f87b7e23ac7cecb115c317b7c23a82ce8c33824c3213cfcd7b04747e3e0e4ff77a55575b58b849e85427c28cdbbaf880aed7e513f2ef65646c1e3d

Download Submit
memory/2428-0-0x0000016C18C10000-0x0000016C18C5A000-memory.dmp

Filesize
296KB

Download
memory/2428-1-0x00007FFDCAC20000-0x00007FFDCB6E1000-memory.dmp

Filesize
10.8MB

Download
memory/2428-28-0x0000016C331E0000-0x0000016C331F0000-memory.dmp

Filesize
64KB

Download
memory/2428-126-0x00007FFDCAC20000-0x00007FFDCB6E1000-memory.dmp

Filesize
10.8MB

Download