44caliber | 17a63474761694df195922553ceed1733b9c5c940e6ef44a560fa5022a330931

Analysis

max time kernel
149s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
20-03-2024 09:38

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General

Target

d879f98415c5091a66206c2c8938b6af.exe
Size

1.2MB
MD5

d879f98415c5091a66206c2c8938b6af
SHA1

52e521e9e81ffc0bdd8125b90fdf9e4b42af91f2
SHA256

17a63474761694df195922553ceed1733b9c5c940e6ef44a560fa5022a330931
SHA512

fe23f5da35e1a245f3e5a31fcc8d38948ff3c4b127f3e8369545e01d849a8c6ef87803a7c929d35722050074e5e7ecd4f15f3e0ceac2880988595c09db88c0a9
SSDEEP

24576:0p6QlVvkMxKht99iIp/puHMWZnaXnxN99uKq5tAVZnY0rUvVDDa:W6cBkM0riWpuHM2aXxnIBPU8h

Score

10^/10

44caliber spyware stealer

Malware Config

Extracted

Family

44caliber

https://discordapp.com/api/webhooks/869534850812637194/fQ9SG1wbGT8eouo6vEUs5wADugNDHDhRWKq5RBk6gLjlDi9xEUaR3leD9AhGscQ-u377

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.

Processes:

flow ioc

15 freegeoip.app
14 freegeoip.app
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

d879f98415c5091a66206c2c8938b6af.exe

pid process

1300 d879f98415c5091a66206c2c8938b6af.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

4836 1300 WerFault.exe d879f98415c5091a66206c2c8938b6af.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

d879f98415c5091a66206c2c8938b6af.exe

pid process

1300 d879f98415c5091a66206c2c8938b6af.exe
1300 d879f98415c5091a66206c2c8938b6af.exe
1300 d879f98415c5091a66206c2c8938b6af.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

d879f98415c5091a66206c2c8938b6af.exe

description pid process

Token: SeDebugPrivilege 1300 d879f98415c5091a66206c2c8938b6af.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

d879f98415c5091a66206c2c8938b6af.exe

pid process

1300 d879f98415c5091a66206c2c8938b6af.exe

flow	ioc
15	freegeoip.app
14	freegeoip.app

pid	process
1300	d879f98415c5091a66206c2c8938b6af.exe

pid	pid_target	process	target process
4836	1300	WerFault.exe	d879f98415c5091a66206c2c8938b6af.exe

pid	process
1300	d879f98415c5091a66206c2c8938b6af.exe
1300	d879f98415c5091a66206c2c8938b6af.exe
1300	d879f98415c5091a66206c2c8938b6af.exe

description	pid	process
Token: SeDebugPrivilege	1300	d879f98415c5091a66206c2c8938b6af.exe

pid	process
1300	d879f98415c5091a66206c2c8938b6af.exe

C:\Users\Admin\AppData\Local\Temp\d879f98415c5091a66206c2c8938b6af.exe
"C:\Users\Admin\AppData\Local\Temp\d879f98415c5091a66206c2c8938b6af.exe"
1⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:1300

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1300 -s 1344
2⤵
- Program crash
PID:4836

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1300 -ip 1300
1⤵
PID:2400

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\44\Browsers\Firefox\Bookmarks.txt
Filesize
105B

MD5
2e9d094dda5cdc3ce6519f75943a4ff4

SHA1
5d989b4ac8b699781681fe75ed9ef98191a5096c

SHA256
c84c98bbf5e0ef9c8d0708b5d60c5bb656b7d6be5135d7f7a8d25557e08cf142

SHA512
d1f7eed00959e902bdb2125b91721460d3ff99f3bdfc1f2a343d4f58e8d4e5e5a06c0c6cdc0379211c94510f7c00d7a8b34fa7d0ca0c3d54cbbe878f1e9812b7

Download Submit
memory/1300-0-0x0000000000FD0000-0x000000000138A000-memory.dmp

Filesize
3.7MB

Download
memory/1300-1-0x0000000000FD0000-0x000000000138A000-memory.dmp

Filesize
3.7MB

Download
memory/1300-2-0x0000000073C70000-0x0000000074420000-memory.dmp

Filesize
7.7MB

Download
memory/1300-3-0x00000000064C0000-0x00000000064D0000-memory.dmp

Filesize
64KB

Download
memory/1300-37-0x0000000000FD0000-0x000000000138A000-memory.dmp

Filesize
3.7MB

Download
memory/1300-38-0x0000000073C70000-0x0000000074420000-memory.dmp

Filesize
7.7MB

Download