44caliber | b356d0dfecf39874a2bbbe4cae33f580d91a8991860df23314f35950f574485c

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
24-12-2023 20:39

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General

Target

117b28e18c3cdee58cee6f5b4c6b708b.exe
Size

1.2MB
MD5

117b28e18c3cdee58cee6f5b4c6b708b
SHA1

bf3f7cf88712b01a8123d3836bf19f25b17a70ec
SHA256

b356d0dfecf39874a2bbbe4cae33f580d91a8991860df23314f35950f574485c
SHA512

3a2331e1f7266a262e308eab726ee43127631c7348e7931186d13f54577abb1a18a92d6a6664dc69a9cbe9098914bd0e6173d1adc634a545b9c87b3bedd600ea
SSDEEP

24576:8Shu0Xd9baM1zjL0KfafjvjZLJNWttqmO96tY:8SL7VUfjJWttlO9IY

Score

10^/10

44caliber spyware stealer

Malware Config

Extracted

Family

44caliber

https://discordapp.com/api/webhooks/859014405580783637/J-rOLcLQORAp4rSIpre0H46Lhmzd8QK1hgRFNA4mqYSEz6dtJRq9HsK-id725NgqZTvK

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

2 freegeoip.app
3 freegeoip.app
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

117b28e18c3cdee58cee6f5b4c6b708b.exe

pid process

2508 117b28e18c3cdee58cee6f5b4c6b708b.exe

flow	ioc
2	freegeoip.app
3	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

Processes:

117b28e18c3cdee58cee6f5b4c6b708b.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	117b28e18c3cdee58cee6f5b4c6b708b.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	117b28e18c3cdee58cee6f5b4c6b708b.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

117b28e18c3cdee58cee6f5b4c6b708b.exe

pid	process
2508	117b28e18c3cdee58cee6f5b4c6b708b.exe
2508	117b28e18c3cdee58cee6f5b4c6b708b.exe
2508	117b28e18c3cdee58cee6f5b4c6b708b.exe
2508	117b28e18c3cdee58cee6f5b4c6b708b.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

117b28e18c3cdee58cee6f5b4c6b708b.exe

description pid process

Token: SeDebugPrivilege 2508 117b28e18c3cdee58cee6f5b4c6b708b.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

117b28e18c3cdee58cee6f5b4c6b708b.exe

pid process

2508 117b28e18c3cdee58cee6f5b4c6b708b.exe

description	pid	process
Token: SeDebugPrivilege	2508	117b28e18c3cdee58cee6f5b4c6b708b.exe

C:\Users\Admin\AppData\Local\Temp\117b28e18c3cdee58cee6f5b4c6b708b.exe
"C:\Users\Admin\AppData\Local\Temp\117b28e18c3cdee58cee6f5b4c6b708b.exe"
1⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:2508

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

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\ProgramData\44\Process.txt
Filesize
168B

MD5
5dcd8f93250bf05c07605117a84e69dc

SHA1
0c5bce4ccffcab3929e8b6c0489f229479936972

SHA256
0e2c1612bcf6bbbd473fb1d208296ddffadfe239e209c5bac966aad207854e83

SHA512
d3a41bb4c4b61e25d27a586393a898b08c0d20021c136f934412c9079ead0037502f5e71fb2a5a921ad04e627c8c5f94ea50c588013fe09e648cf8ffd3b6cafb

Download Submit
C:\ProgramData\44\Process.txt
Filesize
240B

MD5
fd2ebd092a90f31e26820fc0d93246df

SHA1
f892c49388291c420e6198728d7d568c53b73494

SHA256
23753b6cd47875ff1511ddf48be69ec728fb0c47bf367589175885974a39e2b4

SHA512
f39d69964972d37c4ee49504befb224c3a2a913b49cc302de35f0784935a67075fa11d1c4ee094542f8fa8f01eece794f9e3a05b5c925546485240cf5ffa00cb

Download Submit
C:\ProgramData\44\Process.txt
Filesize
412B

MD5
7473baabd931434fdab8dc346af74da3

SHA1
7187596b2a7c5c50850238ec6688743182f95ad2

SHA256
27c9926e9b00d732f00b596ff477bd0cee7d652a59b3ca7312a8369f85bcce0e

SHA512
9ccf6caae9f92a9fecedc83eb35b41fe4b6b355023ac909486de87b53ab2268888c5e9d1f0cd9417c201926ec7246c3768e5e70457d7b2481967d535a54f04bb

Download Submit
memory/2508-0-0x0000000001150000-0x00000000014FE000-memory.dmp

Filesize
3.7MB

Download
memory/2508-1-0x0000000001150000-0x00000000014FE000-memory.dmp

Filesize
3.7MB

Download
memory/2508-2-0x0000000074270000-0x000000007495E000-memory.dmp

Filesize
6.9MB

Download
memory/2508-3-0x0000000005E60000-0x0000000005EA0000-memory.dmp

Filesize
256KB

Download
memory/2508-56-0x0000000074270000-0x000000007495E000-memory.dmp

Filesize
6.9MB

Download
memory/2508-55-0x0000000001150000-0x00000000014FE000-memory.dmp

Filesize
3.7MB

Download