44caliber | 62842fba1bad0f14497d674dcc2ce5b74c6dc781b56d9be7b22abc0e6e84e299

Analysis

max time kernel
120s
max time network
137s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
17/10/2022, 19:50

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General

Target
62842fba1bad0f14497d674dcc2ce5b74c6dc781b56d9be7b22abc0e6e84e299.exe
Size 274KB
Sample221017-ykbsvsdbam
SHA256 62842fba1bad0f14497d674dcc2ce5b74c6dc781b56d9be7b22abc0e6e84e299
MD5 88c05e490c59382d1d19886fe0fff325
SHA1 e9cf39409ef4569c21cc10b2fd4f040e19b6a4ee
SHA512 7b4511fe6c98627dc57ac2fdb32083a38f290542bcbe08bd8ca566def4bf61e4e02db1e46d525ce946f0caf55fb9e0f1e43d09129e4992bb9bc1b3b39cf6e052
SSDEEP 6144:af+BLtABPDWlR1ZroWT0Ilb5wqlYeJOlA1D0LfN:rluK0Ilb5/lYeR1D+N
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

44caliber spyware stealer

Malware Config

Extracted

Family

44caliber

https://discord.com/api/webhooks/995248566551453789/dAKoCwfwxZLio1kYw1hDPwWmGXZm_oc0bPueRJeTs24o8dr_hgZncoNldxhaZ5_em0Ve

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.

flow	ioc
2	freegeoip.app
3	freegeoip.app

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{3BE246CC-D51B-4E07-92A2-900C6F07D780}.catalogItem	svchost.exe
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{73E9BF9F-4EDA-4290-8A92-91A3D91C7605}.catalogItem	svchost.exe

Checks processor information in registry 2 TTPs 5 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	62842fba1bad0f14497d674dcc2ce5b74c6dc781b56d9be7b22abc0e6e84e299.exe
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	svchost.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	62842fba1bad0f14497d674dcc2ce5b74c6dc781b56d9be7b22abc0e6e84e299.exe

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

T1012

System Information Discovery

T1082

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

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3232	62842fba1bad0f14497d674dcc2ce5b74c6dc781b56d9be7b22abc0e6e84e299.exe
3232	62842fba1bad0f14497d674dcc2ce5b74c6dc781b56d9be7b22abc0e6e84e299.exe
3232	62842fba1bad0f14497d674dcc2ce5b74c6dc781b56d9be7b22abc0e6e84e299.exe
3232	62842fba1bad0f14497d674dcc2ce5b74c6dc781b56d9be7b22abc0e6e84e299.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3232	62842fba1bad0f14497d674dcc2ce5b74c6dc781b56d9be7b22abc0e6e84e299.exe

C:\Users\Admin\AppData\Local\Temp\62842fba1bad0f14497d674dcc2ce5b74c6dc781b56d9be7b22abc0e6e84e299.exe
"C:\Users\Admin\AppData\Local\Temp\62842fba1bad0f14497d674dcc2ce5b74c6dc781b56d9be7b22abc0e6e84e299.exe"
1⤵
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3232

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k netsvcs -p
1⤵
- Drops file in System32 directory
- Checks processor information in registry
- Enumerates system info in registry
PID:3880

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

memory/3232-132-0x000001C1556E0000-0x000001C15572A000-memory.dmp

Download

memory/3232-133-0x00007FFD6C7C0000-0x00007FFD6D281000-memory.dmp

Download

memory/3232-134-0x00007FFD6C7C0000-0x00007FFD6D281000-memory.dmp

Download