metastealer | 4c78720fd1387b3e6a70a0ffb46d80bd710706e0691b7242f016d15027dc5cff

General

Target

systemtask.exe
Size

2.4MB
MD5

5283225f59b9b2349c530a73adf37a02
SHA1

e52f623f5dfd4c7647f4ad97bb9ad35ac84192c1
SHA256

4c78720fd1387b3e6a70a0ffb46d80bd710706e0691b7242f016d15027dc5cff
SHA512

7197ae5590ef5f905d003b2091859d73af20641f8445317c8b9a370eb26ab83332a39a73b1aa2b938187080db4cc95d3496499c451b552d8abec853aeb1cf37e
SSDEEP

49152:Utqs1etEynTtrogE7c9gP0op/lRHu891V57TjqRcJu:ow9y0Slxu891V5f

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/4732-1-0x0000000010000000-0x0000000010731000-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
324	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.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
3104	systeminfo.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
324	powershell.exe
324	powershell.exe
4732	systemtask.exe
4732	systemtask.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	324	powershell.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4732 wrote to memory of 324	4732	systemtask.exe	91
PID 4732 wrote to memory of 324	4732	systemtask.exe	91
PID 4732 wrote to memory of 324	4732	systemtask.exe	91
PID 4732 wrote to memory of 3104	4732	systemtask.exe	93
PID 4732 wrote to memory of 3104	4732	systemtask.exe	93
PID 4732 wrote to memory of 3104	4732	systemtask.exe	93

C:\Users\Admin\AppData\Local\Temp\systemtask.exe
"C:\Users\Admin\AppData\Local\Temp\systemtask.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4732
- 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:324
- C:\Windows\SysWOW64\systeminfo.exe
  systeminfo
  2⤵
  - System Location Discovery: System Language Discovery
  - Gathers system information
  PID:3104

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_g3dwhi5e.yyl.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/324-27-0x00000000061D0000-0x0000000006202000-memory.dmp

Filesize
200KB

Download
memory/324-11-0x0000000073E40000-0x00000000745F0000-memory.dmp

Filesize
7.7MB

Download
memory/324-39-0x0000000073E40000-0x00000000745F0000-memory.dmp

Filesize
7.7MB

Download
memory/324-10-0x0000000073E40000-0x00000000745F0000-memory.dmp

Filesize
7.7MB

Download
memory/324-38-0x0000000006210000-0x000000000622E000-memory.dmp

Filesize
120KB

Download
memory/324-12-0x0000000004E50000-0x0000000004E72000-memory.dmp

Filesize
136KB

Download
memory/324-19-0x0000000005620000-0x0000000005686000-memory.dmp

Filesize
408KB

Download
memory/324-6-0x0000000073E4E000-0x0000000073E4F000-memory.dmp

Filesize
4KB

Download
memory/324-15-0x0000000004EF0000-0x0000000004F56000-memory.dmp

Filesize
408KB

Download
memory/324-24-0x0000000005690000-0x00000000059E4000-memory.dmp

Filesize
3.3MB

Download
memory/324-26-0x0000000005C50000-0x0000000005C9C000-memory.dmp

Filesize
304KB

Download
memory/324-41-0x0000000073E40000-0x00000000745F0000-memory.dmp

Filesize
7.7MB

Download
memory/324-28-0x00000000700B0000-0x00000000700FC000-memory.dmp

Filesize
304KB

Download
memory/324-55-0x0000000073E40000-0x00000000745F0000-memory.dmp

Filesize
7.7MB

Download
memory/324-9-0x0000000004FF0000-0x0000000005618000-memory.dmp

Filesize
6.2MB

Download
memory/324-8-0x0000000000E70000-0x0000000000EA6000-memory.dmp

Filesize
216KB

Download
memory/324-25-0x0000000005C10000-0x0000000005C2E000-memory.dmp

Filesize
120KB

Download
memory/324-40-0x0000000006E10000-0x0000000006EB3000-memory.dmp

Filesize
652KB

Download
memory/324-42-0x0000000073E40000-0x00000000745F0000-memory.dmp

Filesize
7.7MB

Download
memory/324-44-0x0000000006F40000-0x0000000006F5A000-memory.dmp

Filesize
104KB

Download
memory/324-43-0x00000000075A0000-0x0000000007C1A000-memory.dmp

Filesize
6.5MB

Download
memory/324-45-0x0000000006FA0000-0x0000000006FAA000-memory.dmp

Filesize
40KB

Download
memory/324-46-0x00000000071D0000-0x0000000007266000-memory.dmp

Filesize
600KB

Download
memory/324-47-0x0000000007140000-0x0000000007151000-memory.dmp

Filesize
68KB

Download
memory/324-49-0x0000000007170000-0x000000000717E000-memory.dmp

Filesize
56KB

Download
memory/324-50-0x0000000007180000-0x0000000007194000-memory.dmp

Filesize
80KB

Download
memory/324-51-0x0000000007290000-0x00000000072AA000-memory.dmp

Filesize
104KB

Download
memory/324-52-0x00000000071C0000-0x00000000071C8000-memory.dmp

Filesize
32KB

Download
memory/4732-1-0x0000000010000000-0x0000000010731000-memory.dmp

Filesize
7.2MB

Download

Analysis

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