metastealer | 306d5e675801382e5204362063903004b274d24ad0730d674b94b4f918b5faa7

General

Target

piovbar.exe
Size

3.9MB
MD5

26641700aa2d3b097f05ec8eaec4df6a
SHA1

0aa4586ad753adc32e730fc9c402edef9de62770
SHA256

306d5e675801382e5204362063903004b274d24ad0730d674b94b4f918b5faa7
SHA512

e42a347cc8965260b6373180d9dcbdb205df269debd371eaf85964d1cb3acaad44f7cabe3ef05cff48c5fc96bb1c44d0a2a99b2653f9325385bc24f69ae1cfa7
SSDEEP

98304:k6zaoVgEHdeug4obZ66z24VZbwpgMLWzmidN/:soV39ePZ66z24VZbwpgOWzmidN/

Score

10^/10

metastealer discovery execution spyware stealer

Malware Config

Extracted

Family

metastealer

C2

kiyaqoimsiieeyqa.xyz

ssqsmisuowqcwsqo.xyz

ykqmwgsuummieaug.xyz

ewukeskgqswqesiw.xyz

cscqcsgewmwwaaui.xyz

cyoksykiamiscyia.xyz

okgomokemoucqeso.xyz

ikwacuakiqeimwua.xyz

aawcsqqaywckiwmi.xyz

aiqasksgmyeqocei.xyz

qgumcuisgaeyuqqe.xyz

eiesoycamyqqgcea.xyz

ywceswakicsqomqw.xyz

auaieuewouawygku.xyz

cmiascusccywowcs.xyz

uiqkkomkaceqacec.xyz

quqeciymqmkqccqw.xyz

ssqsauuuyyigouou.xyz

aogaakukuugqswcy.xyz

ucgwcwsuqsuwewgc.xyz

Attributes

dga_seed
21845
domain_length
16
num_dga_domains
10000
port
443

Signatures

Meta Stealer
Meta Stealer steals passwords stored in browsers, written in C++.
stealer metastealer

MetaStealer payload 1 IoCs

resource	yara_rule
behavioral1/memory/1120-1-0x0000000010000000-0x0000000010731000-memory.dmp	family_metastealer

Metastealer family
metastealer

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
2712	powershell.exe

Reads user/profile data of web browsers 3 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

Credentials from Web Browsers
T1555.003

System Location Discovery: System Language Discovery 1 TTPs 3 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	piovbar.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	systeminfo.exe

Gathers system information 1 TTPs 1 IoCs

Runs systeminfo.exe.

System Information Discovery

T1082

pid	Process
2492	systeminfo.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
2712	powershell.exe
1120	piovbar.exe
1120	piovbar.exe
1120	piovbar.exe
1120	piovbar.exe
1120	piovbar.exe
1120	piovbar.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2712	powershell.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1120 wrote to memory of 2712	1120	piovbar.exe	30
PID 1120 wrote to memory of 2712	1120	piovbar.exe	30
PID 1120 wrote to memory of 2712	1120	piovbar.exe	30
PID 1120 wrote to memory of 2712	1120	piovbar.exe	30
PID 1120 wrote to memory of 2492	1120	piovbar.exe	32
PID 1120 wrote to memory of 2492	1120	piovbar.exe	32
PID 1120 wrote to memory of 2492	1120	piovbar.exe	32
PID 1120 wrote to memory of 2492	1120	piovbar.exe	32

C:\Users\Admin\AppData\Local\Temp\piovbar.exe
"C:\Users\Admin\AppData\Local\Temp\piovbar.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1120
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  powershell Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Microsoft\Windows\systemtask.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2712
- C:\Windows\SysWOW64\systeminfo.exe
  systeminfo
  2⤵
  - System Location Discovery: System Language Discovery
  - Gathers system information
  PID:2492

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

memory/1120-1-0x0000000010000000-0x0000000010731000-memory.dmp

Filesize
7.2MB

Download
memory/2712-8-0x0000000074071000-0x0000000074072000-memory.dmp

Filesize
4KB

Download
memory/2712-9-0x0000000074070000-0x000000007461B000-memory.dmp

Filesize
5.7MB

Download
memory/2712-10-0x0000000074070000-0x000000007461B000-memory.dmp

Filesize
5.7MB

Download
memory/2712-11-0x0000000074070000-0x000000007461B000-memory.dmp

Filesize
5.7MB

Download
memory/2712-17-0x0000000074070000-0x000000007461B000-memory.dmp

Filesize
5.7MB

Download

Analysis

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