44caliber | f11c02f1cf66f4f3c6527d29c471827d0f6d3982ee1d31c4c7d05c4ff0bc09d4

Analysis

max time kernel
125s
max time network
129s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
21-08-2024 01:53

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General

Target

d5a18b44a40e9bc1952bce6e187b81926ffd358aa5ebe95921cde2b9a72b172f.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.

flow	ioc
6	freegeoip.app
7	freegeoip.app

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
2104	d5a18b44a40e9bc1952bce6e187b81926ffd358aa5ebe95921cde2b9a72b172f.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1280	2104	WerFault.exe	90

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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d5a18b44a40e9bc1952bce6e187b81926ffd358aa5ebe95921cde2b9a72b172f.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
2104	d5a18b44a40e9bc1952bce6e187b81926ffd358aa5ebe95921cde2b9a72b172f.exe
2104	d5a18b44a40e9bc1952bce6e187b81926ffd358aa5ebe95921cde2b9a72b172f.exe
2104	d5a18b44a40e9bc1952bce6e187b81926ffd358aa5ebe95921cde2b9a72b172f.exe
2104	d5a18b44a40e9bc1952bce6e187b81926ffd358aa5ebe95921cde2b9a72b172f.exe
2104	d5a18b44a40e9bc1952bce6e187b81926ffd358aa5ebe95921cde2b9a72b172f.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2104	d5a18b44a40e9bc1952bce6e187b81926ffd358aa5ebe95921cde2b9a72b172f.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2104	d5a18b44a40e9bc1952bce6e187b81926ffd358aa5ebe95921cde2b9a72b172f.exe

C:\Users\Admin\AppData\Local\Temp\d5a18b44a40e9bc1952bce6e187b81926ffd358aa5ebe95921cde2b9a72b172f.exe
"C:\Users\Admin\AppData\Local\Temp\d5a18b44a40e9bc1952bce6e187b81926ffd358aa5ebe95921cde2b9a72b172f.exe"
1⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:2104
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2104 -s 1360
  2⤵
  - Program crash
  PID:1280

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2104 -ip 2104
1⤵
PID:1712

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4228,i,16315016104747277319,5510969007830467313,262144 --variations-seed-version --mojo-platform-channel-handle=4512 /prefetch:8
1⤵
PID:1472

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

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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/2104-0-0x0000000000710000-0x0000000000ACA000-memory.dmp

Filesize
3.7MB

Download
memory/2104-1-0x000000007441E000-0x000000007441F000-memory.dmp

Filesize
4KB

Download
memory/2104-2-0x0000000000710000-0x0000000000ACA000-memory.dmp

Filesize
3.7MB

Download
memory/2104-14-0x0000000074410000-0x0000000074BC0000-memory.dmp

Filesize
7.7MB

Download
memory/2104-34-0x0000000000710000-0x0000000000ACA000-memory.dmp

Filesize
3.7MB

Download
memory/2104-35-0x0000000074410000-0x0000000074BC0000-memory.dmp

Filesize
7.7MB

Download