44caliber | 09ea3bf729f8c7d94be749b3c40de16b5795cf015e971164bb49168841917e06

General

Target

09ea3bf729f8c7d94be749b3c40de16b5795cf015e971164bb49168841917e06.exe
Size

274KB
MD5

15e2a8fb387c0d282a42769bf706302a
SHA1

a3e079ec5d06a3a9b93c1f72c39ca0c83b17710d
SHA256

09ea3bf729f8c7d94be749b3c40de16b5795cf015e971164bb49168841917e06
SHA512

5fa9dd312f22d9ac36ee8b29fcb77bf8621ed3cb95496a4c6ff91437efa25cde672794ccc3f19c26a40988de17fb04798f77fb867a0b4f3822cfe3b71ae83653
SSDEEP

6144:Cf+BLtABPDsJJfbdrJwiU0xoZZafTyMlI1D0qY/:NJXqiU0xoRh1Da/

Score

10^/10

44caliber spyware stealer

Malware Config

Extracted

Family

44caliber

C2

https://discord.com/api/webhooks/1160315256816554056/hlmTbenc8kZjs5SjhnARiVDXgoYJyFGIFGn6fTzvVyQv0AD0YdC5k0StuqiH0Q3QAxBA

Signatures

44Caliber
An open source infostealer written in C#.
stealer 44caliber

Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 1 IoCs

Processes:

resource	yara_rule
behavioral1/memory/3024-0-0x0000000000BC0000-0x0000000000C0A000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers

Detects executables Discord URL observed in first stage droppers 1 IoCs

Processes:

resource	yara_rule
behavioral1/memory/3024-0-0x0000000000BC0000-0x0000000000C0A000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_DiscordURL

Detects executables referencing Discord tokens regular expressions 2 IoCs

Processes:

resource	yara_rule
behavioral1/memory/3024-0-0x0000000000BC0000-0x0000000000C0A000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_Discord_Regex
behavioral1/memory/3024-2-0x000000001AB50000-0x000000001ABD0000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_Discord_Regex

Detects executables referencing credit card regular expressions 2 IoCs

Processes:

resource	yara_rule
behavioral1/memory/3024-0-0x0000000000BC0000-0x0000000000C0A000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_CC_Regex
behavioral1/memory/3024-2-0x000000001AB50000-0x000000001ABD0000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_CC_Regex

Detects executables referencing many VPN software clients. Observed in infosteslers 1 IoCs

Processes:

resource	yara_rule
behavioral1/memory/3024-0-0x0000000000BC0000-0x0000000000C0A000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_VPN

Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers 1 IoCs

Processes:

resource	yara_rule
behavioral1/memory/3024-0-0x0000000000BC0000-0x0000000000C0A000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store

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

4 freegeoip.app
5 freegeoip.app

flow	ioc
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

Processes:

09ea3bf729f8c7d94be749b3c40de16b5795cf015e971164bb49168841917e06.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	09ea3bf729f8c7d94be749b3c40de16b5795cf015e971164bb49168841917e06.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	09ea3bf729f8c7d94be749b3c40de16b5795cf015e971164bb49168841917e06.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

09ea3bf729f8c7d94be749b3c40de16b5795cf015e971164bb49168841917e06.exe

pid	process
3024	09ea3bf729f8c7d94be749b3c40de16b5795cf015e971164bb49168841917e06.exe
3024	09ea3bf729f8c7d94be749b3c40de16b5795cf015e971164bb49168841917e06.exe
3024	09ea3bf729f8c7d94be749b3c40de16b5795cf015e971164bb49168841917e06.exe
3024	09ea3bf729f8c7d94be749b3c40de16b5795cf015e971164bb49168841917e06.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

09ea3bf729f8c7d94be749b3c40de16b5795cf015e971164bb49168841917e06.exe

description pid process

Token: SeDebugPrivilege 3024 09ea3bf729f8c7d94be749b3c40de16b5795cf015e971164bb49168841917e06.exe

description	pid	process
Token: SeDebugPrivilege	3024	09ea3bf729f8c7d94be749b3c40de16b5795cf015e971164bb49168841917e06.exe

C:\Users\Admin\AppData\Local\Temp\09ea3bf729f8c7d94be749b3c40de16b5795cf015e971164bb49168841917e06.exe
"C:\Users\Admin\AppData\Local\Temp\09ea3bf729f8c7d94be749b3c40de16b5795cf015e971164bb49168841917e06.exe"
1⤵
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3024

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

2

T1552

Credentials In Files

2

T1552.001

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

2

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\44\Process.txt

Filesize
444B

MD5
a1e4686ed7fa6fc127ad1646c985f4da

SHA1
219d0712efd77175de3cdfde3be616699a68e441

SHA256
ba84ed9b4e30b73bbf1f6ac84d25f42c74e134c24318cab5d45b96e025945c34

SHA512
e136ad521d504004b96b77e5b4f00d5c48664671aaf81b6078b13a2b0f823331e9fa2af96645f0096ed26e828541d56e61def3d2b034f9dfba29739cfb2b2caf

Download Submit
memory/3024-0-0x0000000000BC0000-0x0000000000C0A000-memory.dmp

Filesize
296KB

Download
memory/3024-1-0x000007FEF5540000-0x000007FEF5F2C000-memory.dmp

Filesize
9.9MB

Download
memory/3024-2-0x000000001AB50000-0x000000001ABD0000-memory.dmp

Filesize
512KB

Download
memory/3024-50-0x000007FEF5540000-0x000007FEF5F2C000-memory.dmp

Filesize
9.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads