44caliber | 7887903ccd5814fed9771191107018b53c41db9760007f3b6c1204c22f87db3c

Analysis

max time kernel
122s
max time network
132s
platform
windows10-2004_x64
resource
win10v2004-20220310-en
submitted
23-03-2022 02:25

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General

Target

63e0efb7ec667e935cd34b2a76da22e48f816b5f98b3c14870b378f681f98c8e.exe
Size

274KB
MD5

5aee3345a3ef18204fa6849a02275218
SHA1

eaa6fde9136d6ad33230d5674d43b9b821f155ab
SHA256

63e0efb7ec667e935cd34b2a76da22e48f816b5f98b3c14870b378f681f98c8e
SHA512

d4406b0ca7e7755040620f3b37d7b84e8b2ded470f523a91022433b128a3fbd0e46cad962902e7f1d2ab25b8ac63f0d14201051824fe08fd76e0065f15401ea9

Score

10^/10

44caliber spyware stealer

Malware Config

Extracted

Family

44caliber

https://discordapp.com/api/webhooks/955224498146275348/pLxIEeiW2qrhrboJbcauxZQ0_RZDszpNNPmByT2Oic1imZEWt8KB4YmuUkeKx8HWKQuN

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

13 freegeoip.app
12 freegeoip.app

flow	ioc
13	freegeoip.app
12	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:

63e0efb7ec667e935cd34b2a76da22e48f816b5f98b3c14870b378f681f98c8e.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	63e0efb7ec667e935cd34b2a76da22e48f816b5f98b3c14870b378f681f98c8e.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	63e0efb7ec667e935cd34b2a76da22e48f816b5f98b3c14870b378f681f98c8e.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

63e0efb7ec667e935cd34b2a76da22e48f816b5f98b3c14870b378f681f98c8e.exe

pid	process
2044	63e0efb7ec667e935cd34b2a76da22e48f816b5f98b3c14870b378f681f98c8e.exe
2044	63e0efb7ec667e935cd34b2a76da22e48f816b5f98b3c14870b378f681f98c8e.exe
2044	63e0efb7ec667e935cd34b2a76da22e48f816b5f98b3c14870b378f681f98c8e.exe
2044	63e0efb7ec667e935cd34b2a76da22e48f816b5f98b3c14870b378f681f98c8e.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

63e0efb7ec667e935cd34b2a76da22e48f816b5f98b3c14870b378f681f98c8e.exe

description pid process

Token: SeDebugPrivilege 2044 63e0efb7ec667e935cd34b2a76da22e48f816b5f98b3c14870b378f681f98c8e.exe

description	pid	process
Token: SeDebugPrivilege	2044	63e0efb7ec667e935cd34b2a76da22e48f816b5f98b3c14870b378f681f98c8e.exe

C:\Users\Admin\AppData\Local\Temp\63e0efb7ec667e935cd34b2a76da22e48f816b5f98b3c14870b378f681f98c8e.exe
"C:\Users\Admin\AppData\Local\Temp\63e0efb7ec667e935cd34b2a76da22e48f816b5f98b3c14870b378f681f98c8e.exe"
1⤵
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2044

Network

MITRE ATT&CK Matrix ATT&CK 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

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/2044-134-0x00000000000A0000-0x00000000000EA000-memory.dmp

Filesize
296KB

Download
memory/2044-135-0x00007FF8947B0000-0x00007FF895271000-memory.dmp

Filesize
10.8MB

Download
memory/2044-136-0x0000000000890000-0x0000000000892000-memory.dmp

Filesize
8KB

Download