44caliber | d5a18b44a40e9bc1952bce6e187b81926ffd358aa5ebe95921cde2b9a72b172f

Analysis

max time kernel
124s
max time network
134s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
19-08-2024 16:38

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General

Target

Insidious_protected.exe
Size

1.2MB
MD5

d9ccde3b728fba6d6e3f1b92c75a11a8
SHA1

b0bbe87ae7519b5d6dcd7f6282e891922971942d
SHA256

d5a18b44a40e9bc1952bce6e187b81926ffd358aa5ebe95921cde2b9a72b172f
SHA512

738f1b568009a6df2fcaf2f1c8aba6aee91b4a66474e095d6e483b72ebf1d5309d33908dd1531407a69520b657bdfa75c6b3eda796c20bf1542b632030e58db4
SSDEEP

24576:c1VJqwlZcf4XH1yfEXk3vc8W/jr1STXLmPz63V2HTiViv4qWVLiO6:c1VrlSfI1WlE7/ITq76lslAZxiO6

Score

10^/10

44caliber credential_access discovery spyware stealer

Malware Config

Extracted

Family

44caliber

https://discord.com/api/webhooks/1274462328603148298/RG8TQ5NOTPK7lllW9DXds8Z7Vj68QWZX7Duc-LfDNeqa_HouSEGlNyNzsrVH6EfQxrh8

Signatures

44Caliber
An open source infostealer written in C#.
stealer 44caliber
Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003
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

4 freegeoip.app
5 freegeoip.app
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

Insidious_protected.exe

pid process

1252 Insidious_protected.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

4208 1252 WerFault.exe Insidious_protected.exe
System Location Discovery: System Language Discovery 1 TTPs 1 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

Processes:

Insidious_protected.exe

description ioc process

Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language Insidious_protected.exe
Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

Insidious_protected.exe

pid process

1252 Insidious_protected.exe
1252 Insidious_protected.exe
1252 Insidious_protected.exe
1252 Insidious_protected.exe
1252 Insidious_protected.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

Insidious_protected.exe

description pid process

Token: SeDebugPrivilege 1252 Insidious_protected.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

Insidious_protected.exe

pid process

1252 Insidious_protected.exe

flow	ioc
4	freegeoip.app
5	freegeoip.app

pid	process
1252	Insidious_protected.exe

pid	pid_target	process	target process
4208	1252	WerFault.exe	Insidious_protected.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Insidious_protected.exe

pid	process
1252	Insidious_protected.exe
1252	Insidious_protected.exe
1252	Insidious_protected.exe
1252	Insidious_protected.exe
1252	Insidious_protected.exe

description	pid	process
Token: SeDebugPrivilege	1252	Insidious_protected.exe

pid	process
1252	Insidious_protected.exe

C:\Users\Admin\AppData\Local\Temp\Insidious_protected.exe
"C:\Users\Admin\AppData\Local\Temp\Insidious_protected.exe"
1⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:1252

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1252 -s 1484
2⤵
- Program crash
PID:4208

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1252 -ip 1252
1⤵
PID:2648

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\44\Browsers\Firefox\Bookmarks.txt

Filesize
105B

MD5
2e9d094dda5cdc3ce6519f75943a4ff4

SHA1
5d989b4ac8b699781681fe75ed9ef98191a5096c

SHA256
c84c98bbf5e0ef9c8d0708b5d60c5bb656b7d6be5135d7f7a8d25557e08cf142

SHA512
d1f7eed00959e902bdb2125b91721460d3ff99f3bdfc1f2a343d4f58e8d4e5e5a06c0c6cdc0379211c94510f7c00d7a8b34fa7d0ca0c3d54cbbe878f1e9812b7

Download Submit
memory/1252-0-0x0000000000D80000-0x000000000113A000-memory.dmp

Filesize
3.7MB

Download
memory/1252-1-0x00000000741EE000-0x00000000741EF000-memory.dmp

Filesize
4KB

Download
memory/1252-2-0x0000000000D80000-0x000000000113A000-memory.dmp

Filesize
3.7MB

Download
memory/1252-11-0x00000000741E0000-0x0000000074990000-memory.dmp

Filesize
7.7MB

Download
memory/1252-37-0x0000000000D80000-0x000000000113A000-memory.dmp

Filesize
3.7MB

Download
memory/1252-38-0x00000000741E0000-0x0000000074990000-memory.dmp

Filesize
7.7MB

Download