44caliber | 98e1550881100955bf59a6b3120a60f45bf4bb91852c5e18fa24ed1affee40ab

Analysis

max time kernel
136s
max time network
140s
platform
windows10-2004_x64
resource
win10v2004-en-20220113
submitted
01-03-2022 18:12

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General

Target

98e1550881100955bf59a6b3120a60f45bf4bb91852c5e18fa24ed1affee40ab.exe
Size

274KB
MD5

75773d8c669299b98c644fbb7d322fa1
SHA1

0b3a278bb23ae6f7d6b23ea792b830bc7b0fa949
SHA256

98e1550881100955bf59a6b3120a60f45bf4bb91852c5e18fa24ed1affee40ab
SHA512

7468405e821a76d11abaf05c85360c85addebb1cd015b2cde91801163eeafde385362b09739f2b485d942aa1a812814de9e4f87b0ac5c3aebc29f7d5531b0698

Score

10^/10

44caliber spyware stealer

Malware Config

Extracted

Family

44caliber

https://discord.com/api/webhooks/940987810394034176/DvPFN05_G7rxFlIjCTa9Gz9OX9Q2zMua7Rt4Q_CF-_Bpxe0HOtLB2QK7X8d0bNwVNl6l

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

3 freegeoip.app
4 freegeoip.app

flow	ioc
3	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

Processes:

98e1550881100955bf59a6b3120a60f45bf4bb91852c5e18fa24ed1affee40ab.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	98e1550881100955bf59a6b3120a60f45bf4bb91852c5e18fa24ed1affee40ab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	98e1550881100955bf59a6b3120a60f45bf4bb91852c5e18fa24ed1affee40ab.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

98e1550881100955bf59a6b3120a60f45bf4bb91852c5e18fa24ed1affee40ab.exe

pid	process
784	98e1550881100955bf59a6b3120a60f45bf4bb91852c5e18fa24ed1affee40ab.exe
784	98e1550881100955bf59a6b3120a60f45bf4bb91852c5e18fa24ed1affee40ab.exe
784	98e1550881100955bf59a6b3120a60f45bf4bb91852c5e18fa24ed1affee40ab.exe
784	98e1550881100955bf59a6b3120a60f45bf4bb91852c5e18fa24ed1affee40ab.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

98e1550881100955bf59a6b3120a60f45bf4bb91852c5e18fa24ed1affee40ab.exe

description pid process

Token: SeDebugPrivilege 784 98e1550881100955bf59a6b3120a60f45bf4bb91852c5e18fa24ed1affee40ab.exe

description	pid	process
Token: SeDebugPrivilege	784	98e1550881100955bf59a6b3120a60f45bf4bb91852c5e18fa24ed1affee40ab.exe

C:\Users\Admin\AppData\Local\Temp\98e1550881100955bf59a6b3120a60f45bf4bb91852c5e18fa24ed1affee40ab.exe
"C:\Users\Admin\AppData\Local\Temp\98e1550881100955bf59a6b3120a60f45bf4bb91852c5e18fa24ed1affee40ab.exe"
1⤵
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:784

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/784-130-0x000001D6DEB10000-0x000001D6DEB5A000-memory.dmp

Filesize
296KB

Download
memory/784-131-0x00007FF9A6DE3000-0x00007FF9A6DE5000-memory.dmp

Filesize
8KB

Download
memory/784-132-0x000001D6FA650000-0x000001D6FA652000-memory.dmp

Filesize
8KB

Download