44caliber | d4917f32cf3755b07badf1179d6717d4f17618cb68184f0dda48f4a4bbb45376

Resubmissions

26/06/2024, 10:20

240626-mc9jdasfmr 10

26/06/2024, 10:17

240626-mbemlssepl 10

Analysis

max time kernel
119s
max time network
123s
platform
windows7_x64
resource
win7-20240611-en
resource tags

arch:x64arch:x86image:win7-20240611-enlocale:en-usos:windows7-x64system
submitted
26/06/2024, 10:20

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General

Target

Loader.exe
Size

304KB
MD5

f896c2bfec649637e85c463e3a70b2a6
SHA1

04d65945a3b79ee5b48a7e7e22fd24c8198fe332
SHA256

d4917f32cf3755b07badf1179d6717d4f17618cb68184f0dda48f4a4bbb45376
SHA512

0fed9a755f93198e795aac73aff0e17478cd51ffb9c19f80fdfdaf53374b32e2016bf83f0415f253b6f76e736cb36fad5269021d73972749c3d3d84206c6ebe0
SSDEEP

6144:bFcT6MDdbICydeBvtCikGW9mhL8PzeVAOe044E:bFK1CikGemQHOeGE

Score

10^/10

44caliber blackguard persistence spyware stealer

Malware Config

Extracted

Family

44caliber

https://discord.com/api/webhooks/1255437795820966010/0VVoLF2QZxnBkoGw_P4ovEIbuHZLKgsoVU8zu2nEJgchI5ahmWwv98_frx1Jjvk7GNic

Signatures

44Caliber
An open source infostealer written in C#.
stealer 44caliber
BlackGuard
Infostealer first seen in Late 2021.
stealer blackguard
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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000\Software\Microsoft\Windows\CurrentVersion\Run\Loader.exe = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Loader.exe\""	Loader.exe

Looks up external IP address via web service 3 IoCs

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

flow	ioc
2	api.ipify.org
4	freegeoip.app
5	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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	Loader.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	Loader.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3032	Loader.exe
3032	Loader.exe
3032	Loader.exe
3032	Loader.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3032	Loader.exe

C:\Users\Admin\AppData\Local\Temp\Loader.exe
"C:\Users\Admin\AppData\Local\Temp\Loader.exe"
1⤵
- Adds Run key to start application
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3032

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

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

Replay Monitor

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Downloads

C:\ProgramData\44\Process.txt

Filesize
386B

MD5
0d09bed9ea652d94cdb1a36dea319996

SHA1
3b3347bbdb0e5fe36e5b05f1a536d174ea4a1cfd

SHA256
e72f92add34544d9c2684c80df080ff133c50158165680689af16c020bfcaabc

SHA512
581997b18855f956b430dbffcee74fd9197c8f5ab1b884276f7b6ca61f8a3414f0547f0670cf70c658013f94b71c7bb0abc115ab450fbdb15b32ed6577f7f2df

Download Submit
memory/3032-0-0x000007FEF58E3000-0x000007FEF58E4000-memory.dmp

Filesize
4KB

Download
memory/3032-1-0x0000000000870000-0x00000000008C2000-memory.dmp

Filesize
328KB

Download
memory/3032-2-0x000007FEF58E0000-0x000007FEF62CC000-memory.dmp

Filesize
9.9MB

Download
memory/3032-50-0x000007FEF58E0000-0x000007FEF62CC000-memory.dmp

Filesize
9.9MB

Download