metastealer | faf30ff86f83f025fbd3d4c2aa1072b6721ea2d5f2975f5a121c56630cec6f97

General

Target

systemtask (2).exe
Size

2.3MB
MD5

6df38b9e17ee0ffa0df0c8b5b65d6b42
SHA1

3b96ea9ddf5fa234239899c9421af388d2aec30a
SHA256

faf30ff86f83f025fbd3d4c2aa1072b6721ea2d5f2975f5a121c56630cec6f97
SHA512

3df09952a2508ec8c5a15ac3afa4b39d6dd56e22bb73c3303be5960b5c7593b3420eb46025dd25124c14d0f7123eb6ef869280d79504468f5f761a5faeef4434
SSDEEP

49152:Zz4RN/TRInewCfcxsDYwkqTXiyrE9W+qYBv9:ZcRtmnewqcxsDYwkqTXiyJ

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
behavioral2/memory/4996-1-0x0000000010000000-0x0000000010731000-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
4616	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	systemtask (2).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
4736	systeminfo.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4616	powershell.exe
4616	powershell.exe
4996	systemtask (2).exe
4996	systemtask (2).exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4616	powershell.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4996 wrote to memory of 4616	4996	systemtask (2).exe	97
PID 4996 wrote to memory of 4616	4996	systemtask (2).exe	97
PID 4996 wrote to memory of 4616	4996	systemtask (2).exe	97
PID 4996 wrote to memory of 4736	4996	systemtask (2).exe	99
PID 4996 wrote to memory of 4736	4996	systemtask (2).exe	99
PID 4996 wrote to memory of 4736	4996	systemtask (2).exe	99

C:\Users\Admin\AppData\Local\Temp\systemtask (2).exe
"C:\Users\Admin\AppData\Local\Temp\systemtask (2).exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4996
- 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:4616
- C:\Windows\SysWOW64\systeminfo.exe
  systeminfo
  2⤵
  - System Location Discovery: System Language Discovery
  - Gathers system information
  PID:4736

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

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_2ja1c0gz.b4m.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/4616-38-0x0000000073A70000-0x0000000074220000-memory.dmp

Filesize
7.7MB

Download
memory/4616-10-0x0000000073A70000-0x0000000074220000-memory.dmp

Filesize
7.7MB

Download
memory/4616-39-0x0000000007840000-0x000000000785E000-memory.dmp

Filesize
120KB

Download
memory/4616-8-0x0000000073A70000-0x0000000074220000-memory.dmp

Filesize
7.7MB

Download
memory/4616-28-0x000000006FEE0000-0x000000006FF2C000-memory.dmp

Filesize
304KB

Download
memory/4616-11-0x00000000057A0000-0x00000000057C2000-memory.dmp

Filesize
136KB

Download
memory/4616-12-0x0000000005ED0000-0x0000000005F36000-memory.dmp

Filesize
408KB

Download
memory/4616-13-0x0000000005F40000-0x0000000005FA6000-memory.dmp

Filesize
408KB

Download
memory/4616-6-0x0000000073A7E000-0x0000000073A7F000-memory.dmp

Filesize
4KB

Download
memory/4616-24-0x0000000006030000-0x0000000006384000-memory.dmp

Filesize
3.3MB

Download
memory/4616-25-0x0000000006640000-0x000000000665E000-memory.dmp

Filesize
120KB

Download
memory/4616-41-0x0000000007860000-0x0000000007903000-memory.dmp

Filesize
652KB

Download
memory/4616-27-0x0000000007800000-0x0000000007832000-memory.dmp

Filesize
200KB

Download
memory/4616-54-0x0000000073A70000-0x0000000074220000-memory.dmp

Filesize
7.7MB

Download
memory/4616-9-0x0000000005830000-0x0000000005E58000-memory.dmp

Filesize
6.2MB

Download
memory/4616-7-0x0000000005070000-0x00000000050A6000-memory.dmp

Filesize
216KB

Download
memory/4616-26-0x0000000006680000-0x00000000066CC000-memory.dmp

Filesize
304KB

Download
memory/4616-40-0x0000000073A70000-0x0000000074220000-memory.dmp

Filesize
7.7MB

Download
memory/4616-42-0x0000000073A70000-0x0000000074220000-memory.dmp

Filesize
7.7MB

Download
memory/4616-44-0x0000000007970000-0x000000000798A000-memory.dmp

Filesize
104KB

Download
memory/4616-43-0x0000000007FB0000-0x000000000862A000-memory.dmp

Filesize
6.5MB

Download
memory/4616-45-0x00000000079D0000-0x00000000079DA000-memory.dmp

Filesize
40KB

Download
memory/4616-46-0x0000000007C00000-0x0000000007C96000-memory.dmp

Filesize
600KB

Download
memory/4616-47-0x0000000007B70000-0x0000000007B81000-memory.dmp

Filesize
68KB

Download
memory/4616-48-0x0000000007BA0000-0x0000000007BAE000-memory.dmp

Filesize
56KB

Download
memory/4616-49-0x0000000007BB0000-0x0000000007BC4000-memory.dmp

Filesize
80KB

Download
memory/4616-50-0x0000000007CC0000-0x0000000007CDA000-memory.dmp

Filesize
104KB

Download
memory/4616-51-0x0000000007BF0000-0x0000000007BF8000-memory.dmp

Filesize
32KB

Download
memory/4996-1-0x0000000010000000-0x0000000010731000-memory.dmp

Filesize
7.2MB

Download

Analysis

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