44caliber | cd8e9641046306857f3a12009ddf442922e32484696b475175c867e8ff580f3e

Analysis

max time kernel
122s
max time network
125s
platform
windows7_x64
resource
win7-20230712-en
resource tags

arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
submitted
12-07-2023 18:25

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General

Target

1c135a7b80703354a6d8bac14381447d.exe
Size

274KB
MD5

1c135a7b80703354a6d8bac14381447d
SHA1

7562f7ba852f7ff91b6ef10647417bd54ff55c6c
SHA256

cd8e9641046306857f3a12009ddf442922e32484696b475175c867e8ff580f3e
SHA512

b9cad0723b37ee5612e64873ebddf428b4ace6396a2b301d8a19bc8c49c9084021f8c14da37298e262888ad62f6bbf78866bef152bb30fa8df39e60348396864
SSDEEP

6144:hf+BLtABPDOpJTNN6eTSUdZ/pOlYeJqlA1D0Mk+:4pYSSUdZ/olYet1DY+

Score

10^/10

44caliber spyware stealer

Malware Config

Extracted

Family

44caliber

https://discord.com/api/webhooks/956477791124205569/zhz-iUwTtwf3ND8UdSeoNmdX8X4ElZBSxqhFrwstZ6oV5o-CWZxANYz737UasCARyImg

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
T1081
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials in Files
T1081
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

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:

1c135a7b80703354a6d8bac14381447d.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	1c135a7b80703354a6d8bac14381447d.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	1c135a7b80703354a6d8bac14381447d.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

1c135a7b80703354a6d8bac14381447d.exe

pid	process
2300	1c135a7b80703354a6d8bac14381447d.exe
2300	1c135a7b80703354a6d8bac14381447d.exe
2300	1c135a7b80703354a6d8bac14381447d.exe
2300	1c135a7b80703354a6d8bac14381447d.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

1c135a7b80703354a6d8bac14381447d.exe

description pid process

Token: SeDebugPrivilege 2300 1c135a7b80703354a6d8bac14381447d.exe

description	pid	process
Token: SeDebugPrivilege	2300	1c135a7b80703354a6d8bac14381447d.exe

C:\Users\Admin\AppData\Local\Temp\1c135a7b80703354a6d8bac14381447d.exe
"C:\Users\Admin\AppData\Local\Temp\1c135a7b80703354a6d8bac14381447d.exe"
1⤵
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2300

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

T1081

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
412B

MD5
79b0d8e35035d743310e210974a6df99

SHA1
4653e85b06117fc072a923d88eda410ba227535f

SHA256
c19af3282b8925e20599f3977e61c091bda040d0e97d84728aebe809a99d73ca

SHA512
b9e8eff535878b72070e963dd33d8ae2e572904f08ae05c18995cfa11afbce75bcdeac20d4ff4b0b82df49beb7ab8f9180f8bbb87721c21d82e30aecc4e66398

Download Submit
memory/2300-54-0x0000000000B20000-0x0000000000B6A000-memory.dmp

Filesize
296KB

Download
memory/2300-72-0x000000001A7B0000-0x000000001A830000-memory.dmp

Filesize
512KB

Download