44caliber | cc3374a948c98c5be192fd7318b405fe41816e6c372751773ca7b1c9d0d6360e

General

Target

cc3374a948c98c5be192fd7318b405fe41816e6c372751773ca7b1c9d0d6360e.exe
Size

303KB
MD5

2e491c60d790fd786e4fbdf90b373c59
SHA1

8a5d5c2982020d1427b16c0822234aac98f035cc
SHA256

cc3374a948c98c5be192fd7318b405fe41816e6c372751773ca7b1c9d0d6360e
SHA512

a1170294273ec32fa1af9ea039dd9f997e764170eed5e5ab629344b63c2aff7941f8635bff3c23b566902f13c69c739bd4ae977cf9fc2f51b3354133b0b664df

Score

10^/10

44caliber spyware stealer

Malware Config

Extracted

Family

44caliber

C2

https://discord.com/api/webhooks/942463554903236658/eGpoLSgLok8IhLx5vkiAmEckByCTxphzQ8sOJ-zvhUCc7hcVLCWAgc-5IQbCbcls-nn2

Signatures

44Caliber
An open source infostealer written in C#.
stealer 44caliber
Suspicious use of NtCreateProcessExOtherParentProcess 1 IoCs

Processes:

WerFault.exe

description pid process target process

PID 940 created 3264 940 WerFault.exe cc3374a948c98c5be192fd7318b405fe41816e6c372751773ca7b1c9d0d6360e.exe
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

5 freegeoip.app
6 freegeoip.app
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1296 3264 WerFault.exe cc3374a948c98c5be192fd7318b405fe41816e6c372751773ca7b1c9d0d6360e.exe

description	pid	process	target process
PID 940 created 3264	940	WerFault.exe	cc3374a948c98c5be192fd7318b405fe41816e6c372751773ca7b1c9d0d6360e.exe

flow	ioc
5	freegeoip.app
6	freegeoip.app

pid	pid_target	process	target process
1296	3264	WerFault.exe	cc3374a948c98c5be192fd7318b405fe41816e6c372751773ca7b1c9d0d6360e.exe

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

WerFault.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	WerFault.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	WerFault.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	WerFault.exe

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

WerFault.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	WerFault.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	WerFault.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

cc3374a948c98c5be192fd7318b405fe41816e6c372751773ca7b1c9d0d6360e.exeWerFault.exe

pid	process
3264	cc3374a948c98c5be192fd7318b405fe41816e6c372751773ca7b1c9d0d6360e.exe
3264	cc3374a948c98c5be192fd7318b405fe41816e6c372751773ca7b1c9d0d6360e.exe
3264	cc3374a948c98c5be192fd7318b405fe41816e6c372751773ca7b1c9d0d6360e.exe
1296	WerFault.exe
1296	WerFault.exe
3264	cc3374a948c98c5be192fd7318b405fe41816e6c372751773ca7b1c9d0d6360e.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

cc3374a948c98c5be192fd7318b405fe41816e6c372751773ca7b1c9d0d6360e.exe

description pid process

Token: SeDebugPrivilege 3264 cc3374a948c98c5be192fd7318b405fe41816e6c372751773ca7b1c9d0d6360e.exe

description	pid	process
Token: SeDebugPrivilege	3264	cc3374a948c98c5be192fd7318b405fe41816e6c372751773ca7b1c9d0d6360e.exe

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

WerFault.exe

description	pid	process	target process
PID 940 wrote to memory of 3264	940	WerFault.exe	cc3374a948c98c5be192fd7318b405fe41816e6c372751773ca7b1c9d0d6360e.exe
PID 940 wrote to memory of 3264	940	WerFault.exe	cc3374a948c98c5be192fd7318b405fe41816e6c372751773ca7b1c9d0d6360e.exe

C:\Users\Admin\AppData\Local\Temp\cc3374a948c98c5be192fd7318b405fe41816e6c372751773ca7b1c9d0d6360e.exe
"C:\Users\Admin\AppData\Local\Temp\cc3374a948c98c5be192fd7318b405fe41816e6c372751773ca7b1c9d0d6360e.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3264

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -u -p 3264 -s 1596
2⤵
- Program crash
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: EnumeratesProcesses
PID:1296

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -pss -s 432 -p 3264 -ip 3264
1⤵
- Suspicious use of NtCreateProcessExOtherParentProcess
- Suspicious use of WriteProcessMemory
PID:940

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

2

T1081

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

2

T1005

Command and Control

Exfiltration

Impact

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Downloads

memory/3264-130-0x0000000000BB0000-0x0000000000C02000-memory.dmp

Filesize
328KB

Download
memory/3264-131-0x00007FFC41A53000-0x00007FFC41A55000-memory.dmp

Filesize
8KB

Download
memory/3264-132-0x000000001C540000-0x000000001C542000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads