44caliber | 158ec994a6de6b0b7cffcf86c9474f91cacdb6b0ce0e7a070df250870cc0c044

General

Target

Insidious.exe
Size

303KB
MD5

9aa717cec4e9f75aa00e786eae4a3d04
SHA1

ac99a075824a6b085745e302ff48abf368d31d27
SHA256

158ec994a6de6b0b7cffcf86c9474f91cacdb6b0ce0e7a070df250870cc0c044
SHA512

8d092206c0f3d11e2f5146bbc15488990c2952dbd843188aa91c745b5a513f9ea3d63ced78a113c17544d684031f123ec989034fafd1f70c9f355efc02fccde5
SSDEEP

6144:dRlT6MDdbICydeBV9suqPmlF62y6hmA1D0tUt:dRT4uqPmH6Da1D5t

Score

10^/10

44caliber discovery spyware stealer

Malware Config

Extracted

Family

44caliber

C2

https://discord.com/api/webhooks/1338833550199492618/rw2c6QUr58msenoKNKsg8ZLDsVFUzkO7iGhk2kE6ipUW1tOa4RuHOLFqDfRB05yiIfWD

Signatures

44Caliber
An open source infostealer written in C#.
stealer 44caliber
44Caliber family
44caliber

Downloads MZ/PE file 1 IoCs

flow	pid	Process
19	2272	Process not Found

Reads user/profile data of web browsers 3 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

Credentials from Web Browsers
T1555.003
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 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
1	freegeoip.app

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MicrosoftEdgeUpdate.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MicrosoftEdgeUpdate.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
1260	MicrosoftEdgeUpdate.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
5112	Insidious.exe
5112	Insidious.exe
5112	Insidious.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	5112	Insidious.exe

C:\Users\Admin\AppData\Local\Temp\Insidious.exe
"C:\Users\Admin\AppData\Local\Temp\Insidious.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:5112

C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
"C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ua /installsource core
1⤵
- System Location Discovery: System Language Discovery
PID:2268

C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
"C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping 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-PGFwcCBhcHBpZD0iezhBNjlEMzQ1LUQ1NjQtNDYzYy1BRkYxLUE2OUQ5RTUzMEY5Nn0iIHZlcnNpb249IjEyMy4wLjYzMTIuMTIzIiBuZXh0dmVyc2lvbj0iIiBsYW5nPSJlbiIgYnJhbmQ9IkdHTFMiIGNsaWVudD0iIiBpbnN0YWxsYWdlPSIzIiBpbnN0YWxsZGF0ZXRpbWU9IjE3Mzg5NDU4NjAiIG9vYmVfaW5zdGFsbF90aW1lPSIxMzM4MzQxODIxNjMwOTAwMDAiPjxldmVudCBldmVudHR5cGU9IjMxIiBldmVudHJlc3VsdD0iMSIgZXJyb3Jjb2RlPSIwIiBleHRyYWNvZGUxPSIyMTc5ODYyIiBzeXN0ZW1fdXB0aW1lX3RpY2tzPSI0ODQwODUzNTg1Ii8-PC9hcHA-PC9yZXF1ZXN0Pg
1⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
PID:1260

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

2

T1552

Credentials In Files

2

T1552.001

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

System Network Configuration Discovery

1

T1016

Internet Connection Discovery

1

T1016.001

Lateral Movement

Collection

Data from Local System

2

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\Microsoft\EdgeUpdate\Log\MicrosoftEdgeUpdate.log

Filesize
421KB

MD5
c09ce8dcb8ca755a5b5ae76004768d60

SHA1
50ee38fa78dbfbd062ae2528e1ad3876ab0dffbd

SHA256
782cd3accdefbfa72ec219acca301407afe54b9c107c39a3162100299e0a329f

SHA512
c0ea3d76b1277bc80596c29406c23985113132440a56e1cfd5bdfc874226828f9fad4f2877c43bd7716f6cec194f8dbf13f168744ee842971d4271da8174cb2f

Download Submit
memory/5112-0-0x00007FFD69D03000-0x00007FFD69D05000-memory.dmp

Filesize
8KB

Download
memory/5112-1-0x00000251376E0000-0x0000025137732000-memory.dmp

Filesize
328KB

Download
memory/5112-31-0x00007FFD69D00000-0x00007FFD6A7C1000-memory.dmp

Filesize
10.8MB

Download
memory/5112-33-0x00007FFD69D00000-0x00007FFD6A7C1000-memory.dmp

Filesize
10.8MB

Download

Analysis

Sharing