44caliber | 640d2a93bfc8e562453b35303ae4ec3c40c0de5b67eef3c28b1d1d498fa40f83

Analysis

max time kernel
120s
max time network
121s
platform
windows7_x64
resource
win7-20231201-en
resource tags

arch:x64arch:x86image:win7-20231201-enlocale:en-usos:windows7-x64system
submitted
05-12-2023 17:55

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General

Target

640d2a93bfc8e562453b35303ae4ec3c40c0de5b67eef3c28b1d1d498fa40f83.exe
Size

274KB
MD5

d6ae2f2cb1539dea4bb4d9ea9d5d5cce
SHA1

bc2ac2bc2d1ee035b65dbd43a4c0d134c51a3eeb
SHA256

640d2a93bfc8e562453b35303ae4ec3c40c0de5b67eef3c28b1d1d498fa40f83
SHA512

59c2d4eafcf67f91ee31104cb04be363ffbfadbe5a9667c0849584e666dffd4529f5c7dfd16905d63f9e2fa310c820aec20de7455ec753a48ab538885ac10ebd
SSDEEP

6144:vf+BLtABPDMtBBfn1Y0gIoHOQpafTyElI1D0pEA:otVvgIoHOOp1DxA

Score

10^/10

44caliber spyware stealer

Malware Config

Extracted

Family

44caliber

https://discordapp.com/api/webhooks/1179802952609837118/VQL2SnbY3OQKym01HTNlPaUzF5_zZWpyG0uR_TQhE0OllmdOQS7zEdjJ2Yw63bcoH9rt

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

Processes:

flow ioc

2 freegeoip.app

flow	ioc
2	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:

640d2a93bfc8e562453b35303ae4ec3c40c0de5b67eef3c28b1d1d498fa40f83.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	640d2a93bfc8e562453b35303ae4ec3c40c0de5b67eef3c28b1d1d498fa40f83.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	640d2a93bfc8e562453b35303ae4ec3c40c0de5b67eef3c28b1d1d498fa40f83.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

640d2a93bfc8e562453b35303ae4ec3c40c0de5b67eef3c28b1d1d498fa40f83.exe

pid	process
2180	640d2a93bfc8e562453b35303ae4ec3c40c0de5b67eef3c28b1d1d498fa40f83.exe
2180	640d2a93bfc8e562453b35303ae4ec3c40c0de5b67eef3c28b1d1d498fa40f83.exe
2180	640d2a93bfc8e562453b35303ae4ec3c40c0de5b67eef3c28b1d1d498fa40f83.exe
2180	640d2a93bfc8e562453b35303ae4ec3c40c0de5b67eef3c28b1d1d498fa40f83.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

640d2a93bfc8e562453b35303ae4ec3c40c0de5b67eef3c28b1d1d498fa40f83.exe

description pid process

Token: SeDebugPrivilege 2180 640d2a93bfc8e562453b35303ae4ec3c40c0de5b67eef3c28b1d1d498fa40f83.exe

description	pid	process
Token: SeDebugPrivilege	2180	640d2a93bfc8e562453b35303ae4ec3c40c0de5b67eef3c28b1d1d498fa40f83.exe

C:\Users\Admin\AppData\Local\Temp\640d2a93bfc8e562453b35303ae4ec3c40c0de5b67eef3c28b1d1d498fa40f83.exe
"C:\Users\Admin\AppData\Local\Temp\640d2a93bfc8e562453b35303ae4ec3c40c0de5b67eef3c28b1d1d498fa40f83.exe"
1⤵
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2180

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:\ProgramData\44\Process.txt

Filesize
429B

MD5
fdc2b8dadca1a86929ecf57d4cf6ea89

SHA1
0cb927e9132f29565aefe4e8d0c510419135a596

SHA256
2b9aad53e9e68f588102e507688b7f1dd907c10bd9fe9f81cb5c0ecf0fac2f7e

SHA512
fc8b53d249ebef4a2543ebcde83eb6e6ddb81636c07544b4d5c8cdd38f805f60cc01fd9200de200820f55bc22bcedce2ffc73e24d0625c650bcb88d1cc02010f

Download Submit
memory/2180-0-0x0000000000F40000-0x0000000000F8A000-memory.dmp

Filesize
296KB

Download
memory/2180-1-0x000007FEF60D0000-0x000007FEF6ABC000-memory.dmp

Filesize
9.9MB

Download
memory/2180-2-0x000000001B410000-0x000000001B490000-memory.dmp

Filesize
512KB

Download
memory/2180-48-0x000007FEF60D0000-0x000007FEF6ABC000-memory.dmp

Filesize
9.9MB

Download