44caliber | 49977d7ebceb8b390b44ed50f6447ce0910c9fc73b1bfdd60eef219138d0038e

Analysis

max time kernel
120s
max time network
124s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
25-02-2024 20:26

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General

Target

a4849cead4dfa68295a47c5471422ffd.exe
Size

1.5MB
MD5

a4849cead4dfa68295a47c5471422ffd
SHA1

c6c5e9a0a3c37c583def626f9bc227c0c294fa8a
SHA256

49977d7ebceb8b390b44ed50f6447ce0910c9fc73b1bfdd60eef219138d0038e
SHA512

df17c9ecc176bae94aeab4bf5ec6733198e6b961baca50465bce6c2d2acf6cf070ad9b3ed4e6efa64d4beec3d5de24f0cfdcd7ac0c7bd8ddabf810cae324b4a4
SSDEEP

24576:CGR2feTKmUp6t23c51lT9y+wvfH79MPxvvdvOyoldbUzkvdHXFcTjYu8AlmeX5J5:CGR2fnn/3cV8+wvzCxlvOyovbUkITjhV

Score

10^/10

44caliber blackguard spyware stealer

Malware Config

Extracted

Family

blackguard

https://api.telegram.org/bot1818730721:AAGgMZz8w6trwd7tHAnNbu0kJSmYFV_IvXk/sendMessage?chat_id=1610877447

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

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
2	freegeoip.app
3	freegeoip.app

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
1268	a4849cead4dfa68295a47c5471422ffd.exe
1268	a4849cead4dfa68295a47c5471422ffd.exe

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 opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	a4849cead4dfa68295a47c5471422ffd.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	a4849cead4dfa68295a47c5471422ffd.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1268	a4849cead4dfa68295a47c5471422ffd.exe
1268	a4849cead4dfa68295a47c5471422ffd.exe
1268	a4849cead4dfa68295a47c5471422ffd.exe
1268	a4849cead4dfa68295a47c5471422ffd.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1268	a4849cead4dfa68295a47c5471422ffd.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1268	a4849cead4dfa68295a47c5471422ffd.exe

C:\Users\Admin\AppData\Local\Temp\a4849cead4dfa68295a47c5471422ffd.exe
"C:\Users\Admin\AppData\Local\Temp\a4849cead4dfa68295a47c5471422ffd.exe"
1⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:1268

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

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

Filesize
105B

MD5
2e9d094dda5cdc3ce6519f75943a4ff4

SHA1
5d989b4ac8b699781681fe75ed9ef98191a5096c

SHA256
c84c98bbf5e0ef9c8d0708b5d60c5bb656b7d6be5135d7f7a8d25557e08cf142

SHA512
d1f7eed00959e902bdb2125b91721460d3ff99f3bdfc1f2a343d4f58e8d4e5e5a06c0c6cdc0379211c94510f7c00d7a8b34fa7d0ca0c3d54cbbe878f1e9812b7

Download Submit
C:\Users\Admin\AppData\Local\44\Process.txt

Filesize
340B

MD5
286c47317b3c9f9b06b8e8a5b2025c01

SHA1
13e50c296d8c0aac036dc701c3d57b82c4d4e940

SHA256
259113967926a6f3e08b7a2d9327e5851669ca6d1e4a9736fcde6e7ae0a84045

SHA512
b7b78d211106fe28c86739705b3f302158592d57a86097901e702d3f1af1b957fe5d8b8ae6da05b98af150eb9e84e44b76f7e1d547370ad07624261821f8232e

Download Submit
memory/1268-0-0x0000000000E00000-0x00000000012A6000-memory.dmp

Filesize
4.6MB

Download
memory/1268-1-0x0000000000E00000-0x00000000012A6000-memory.dmp

Filesize
4.6MB

Download
memory/1268-2-0x00000000742A0000-0x000000007498E000-memory.dmp

Filesize
6.9MB

Download
memory/1268-3-0x00000000054F0000-0x0000000005530000-memory.dmp

Filesize
256KB

Download
memory/1268-54-0x0000000000E00000-0x00000000012A6000-memory.dmp

Filesize
4.6MB

Download
memory/1268-55-0x00000000742A0000-0x000000007498E000-memory.dmp

Filesize
6.9MB

Download