44caliber | e009fee742f6dd1d2c9fc0e840dbeeca1a705a13c2667bf09daf216c60411e89

Analysis

max time kernel
117s
max time network
125s
platform
windows7_x64
resource
win7-20231023-en
resource tags

arch:x64arch:x86image:win7-20231023-enlocale:en-usos:windows7-x64system
submitted
14-12-2023 00:39

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General

Target

123.scr
Size

282KB
MD5

9dc5e3d364fba20137971eb948ed5089
SHA1

5848daad55e30e542e17213ea83d4c4e8ad66641
SHA256

e009fee742f6dd1d2c9fc0e840dbeeca1a705a13c2667bf09daf216c60411e89
SHA512

a0eac98d1b820b59fa2ed0ab98bd70b3fa96af2d0d1498f6ad2e23829f6d1852bbc7512d9683ed1985c4d221bada57461a65ea18556d48235d7a8f6a127eefa9
SSDEEP

6144:if+BLtABPDMtBBfn1Y0gIoHOQpafTyUlI1D0fVg9MtW:JtVvgIoHOOZ1DKg96

Score

10^/10

44caliber spyware stealer

Malware Config

Extracted

Family

44caliber

https://discordapp.com/api/webhooks/1184504729359896607/fPAMX9PDaXX6cd_-7EdUwUPRgvGLKrETMXz361gwk0y19F6LqJJCESeLcwPQReg9mLu9

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

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:

123.scr

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	123.scr
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	123.scr

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

123.scr

pid process

2408 123.scr
2408 123.scr
2408 123.scr
2408 123.scr
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

123.scr

description pid process

Token: SeDebugPrivilege 2408 123.scr

pid	process
2408	123.scr
2408	123.scr
2408	123.scr
2408	123.scr

description	pid	process
Token: SeDebugPrivilege	2408	123.scr

C:\Users\Admin\AppData\Local\Temp\123.scr
"C:\Users\Admin\AppData\Local\Temp\123.scr" /S
1⤵
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2408

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
372B

MD5
d12c39466d99048c9f87002735a11c58

SHA1
884823751f839b8fdffcaa4aec1aeee163d9f964

SHA256
44ec9e20204c8481793bc1db8c60c3ddf8ac91d954474897f0ad563b3dcd5569

SHA512
8ae495e2fdcc86890178a4bee68c8a8f28abb261678178fb99720bb125524e05e6de20ecf81b7e72dcfe0f2dca78023cd519af94900f38a9e6362f3ba21d4b1d

Download Submit
memory/2408-0-0x00000000009D0000-0x0000000000A1C000-memory.dmp

Filesize
304KB

Download
memory/2408-1-0x000007FEF5B60000-0x000007FEF654C000-memory.dmp

Filesize
9.9MB

Download
memory/2408-2-0x0000000001FB0000-0x0000000002030000-memory.dmp

Filesize
512KB

Download
memory/2408-49-0x000007FEF5B60000-0x000007FEF654C000-memory.dmp

Filesize
9.9MB

Download