44caliber | ef36a160c8635bfd24a01d8bda1b9c2fc790ea1c9838caa6be7b83ff5fea2771

Analysis

max time kernel
118s
max time network
122s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
17-01-2024 01:45

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General

Target

616b975815ad492b5140808909a6b70b.exe
Size

274KB
MD5

616b975815ad492b5140808909a6b70b
SHA1

78040b08d3937ba80ddaef3773cfe9caa861e8a5
SHA256

ef36a160c8635bfd24a01d8bda1b9c2fc790ea1c9838caa6be7b83ff5fea2771
SHA512

5e1df86b31926c3198a4d389bf0394023a5958fd401cd16aaad3b0efbdc3930273e74198cb6f389c27c0bf87f0fc8773737341d307bbc34109a56be2e2605d56
SSDEEP

6144:7f+BLtABPD9FhST/JP9ruWhSg41V6GIeyXGRA1D0XcI:1FGP9ruWjY69eyXL1D/I

Score

10^/10

44caliber spyware stealer

Malware Config

Extracted

Family

44caliber

https://discord.com/api/webhooks/873841563778813972/5dEent_d3goCqGTPSzCw7iLShnu_tiyfTGpjs7mChr2lUPh4mIxJRrrYWAb_emPwBGNb

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.

flow	ioc
5	freegeoip.app
4	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 opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	616b975815ad492b5140808909a6b70b.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	616b975815ad492b5140808909a6b70b.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2848	616b975815ad492b5140808909a6b70b.exe
2848	616b975815ad492b5140808909a6b70b.exe
2848	616b975815ad492b5140808909a6b70b.exe
2848	616b975815ad492b5140808909a6b70b.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2848	616b975815ad492b5140808909a6b70b.exe

C:\Users\Admin\AppData\Local\Temp\616b975815ad492b5140808909a6b70b.exe
"C:\Users\Admin\AppData\Local\Temp\616b975815ad492b5140808909a6b70b.exe"
1⤵
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2848

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

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Downloads

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

Filesize
397B

MD5
c8fc277c3b288d856c75bbc030eae7ee

SHA1
23efa3624514475837d8c905250ff82f9abd84d2

SHA256
8e3dee76f2281ffa51e904f26f3d3d7094d0bb57fd7fc848af3398473a67f769

SHA512
1455d8003a27e47f2ae01fa455d662076ef3427ceebe9826250c6c6aae54fc6699d79bbae7b2390015f3fac640889bf2b85557d19cb0cf60ce9c76163be4b821

Download Submit
memory/2848-0-0x0000000000170000-0x00000000001BA000-memory.dmp

Filesize
296KB

Download
memory/2848-1-0x000007FEF5430000-0x000007FEF5E1C000-memory.dmp

Filesize
9.9MB

Download
memory/2848-2-0x000000001ADB0000-0x000000001AE30000-memory.dmp

Filesize
512KB

Download
memory/2848-48-0x000007FEF5430000-0x000007FEF5E1C000-memory.dmp

Filesize
9.9MB

Download