b1fce873959ee7296c5d7307fc3e4302bc013c8ddce57ee77708a94e4416653a

Analysis

max time kernel
141s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
01-09-2024 01:34

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General

Target

b1fce873959ee7296c5d7307fc3e4302bc013c8ddce57ee77708a94e4416653a.exe
Size

6.4MB
MD5

f9e43aefff1576aa7adfc1688d5a24bf
SHA1

9acbca30aba919b26f1439668ebdb1b6a38e46ea
SHA256

b1fce873959ee7296c5d7307fc3e4302bc013c8ddce57ee77708a94e4416653a
SHA512

69d35c334b4670bda9e6045738cd6779e16ec2c712cc98fd2fa595829a7d78f62739c59efaca61d4bc190f0a60d722a283f2046276338125d70545d679ee1532
SSDEEP

98304:LMx3VZorofxDRAwXHf39g5MrvketaC+sbUefI:iFISthXf9gKrr1pfI

Score

9^/10

credential_access discovery spyware stealer

Malware Config

Signatures

Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000\Control Panel\International\Geo\Nation	b1fce873959ee7296c5d7307fc3e4302bc013c8ddce57ee77708a94e4416653a.exe

Executes dropped EXE 1 IoCs

pid	Process
4396	service123.exe

Loads dropped DLL 1 IoCs

pid	Process
4396	service123.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
T1552.001
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b1fce873959ee7296c5d7307fc3e4302bc013c8ddce57ee77708a94e4416653a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	service123.exe

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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	b1fce873959ee7296c5d7307fc3e4302bc013c8ddce57ee77708a94e4416653a.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	b1fce873959ee7296c5d7307fc3e4302bc013c8ddce57ee77708a94e4416653a.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3600 wrote to memory of 4396	3600	b1fce873959ee7296c5d7307fc3e4302bc013c8ddce57ee77708a94e4416653a.exe	95
PID 3600 wrote to memory of 4396	3600	b1fce873959ee7296c5d7307fc3e4302bc013c8ddce57ee77708a94e4416653a.exe	95
PID 3600 wrote to memory of 4396	3600	b1fce873959ee7296c5d7307fc3e4302bc013c8ddce57ee77708a94e4416653a.exe	95

C:\Users\Admin\AppData\Local\Temp\b1fce873959ee7296c5d7307fc3e4302bc013c8ddce57ee77708a94e4416653a.exe
"C:\Users\Admin\AppData\Local\Temp\b1fce873959ee7296c5d7307fc3e4302bc013c8ddce57ee77708a94e4416653a.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Suspicious use of WriteProcessMemory
PID:3600
- C:\Users\Admin\AppData\Local\Temp\service123.exe
  "C:\Users\Admin\AppData\Local\Temp\service123.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:4396

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

memory/3600-0-0x0000000000400000-0x000000000106B000-memory.dmp

Filesize
12.4MB

Download
memory/3600-1-0x0000000000400000-0x000000000106B000-memory.dmp

Filesize
12.4MB

Download
memory/3600-12-0x0000000000400000-0x000000000106B000-memory.dmp

Filesize
12.4MB

Download
memory/4396-15-0x0000000000920000-0x0000000000931000-memory.dmp

Filesize
68KB

Download
memory/4396-16-0x0000000075360000-0x000000007549C000-memory.dmp

Filesize
1.2MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads