metastealer | 433da8646ef586b57ff4b2b06c6752067e135244251f664ce0d91287cd2fb96f

General

Target

install_patched.exe
Size

4.1MB
MD5

bf3e47fb35e4121834768f4b0614b194
SHA1

21428353305b2f2769a157c9cf5555b668c41d6b
SHA256

433da8646ef586b57ff4b2b06c6752067e135244251f664ce0d91287cd2fb96f
SHA512

5c4b6d727030638c11febc19ed213f159a8828054005da44b39d2603d2c0b483acb0b204996f2c730f684e8b753636024fc8ba7cdb33b193135158830adc141d
SSDEEP

49152:0C/gv4vLOKTQAio1rSa4WHvxl9SMwgjQ+qYBC:0+Lso1rSHWYMwgM

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 2 IoCs

resource	yara_rule
behavioral2/memory/3820-24-0x0000000010000000-0x0000000010731000-memory.dmp	family_metastealer
behavioral2/memory/4944-78-0x0000000010000000-0x0000000010731000-memory.dmp	family_metastealer

Metastealer family
metastealer

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

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

execution

PowerShell

T1059.001

pid	Process
4768	powershell.exe
1000	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 5 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	install_patched.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	systeminfo.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	install_patched.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe

Gathers system information 1 TTPs 1 IoCs

Runs systeminfo.exe.

System Information Discovery

T1082

pid	Process
4132	systeminfo.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
1408	powershell.exe
1408	powershell.exe
4768	powershell.exe
4768	powershell.exe
3820	install_patched.exe
3820	install_patched.exe
1000	powershell.exe
1000	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1408	powershell.exe
Token: SeDebugPrivilege	4768	powershell.exe
Token: SeDebugPrivilege	1000	powershell.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 1408 wrote to memory of 3568	1408	powershell.exe	85
PID 1408 wrote to memory of 3568	1408	powershell.exe	85
PID 3820 wrote to memory of 4768	3820	install_patched.exe	91
PID 3820 wrote to memory of 4768	3820	install_patched.exe	91
PID 3820 wrote to memory of 4768	3820	install_patched.exe	91
PID 3820 wrote to memory of 4132	3820	install_patched.exe	93
PID 3820 wrote to memory of 4132	3820	install_patched.exe	93
PID 3820 wrote to memory of 4132	3820	install_patched.exe	93
PID 3568 wrote to memory of 4944	3568	cmd.exe	95
PID 3568 wrote to memory of 4944	3568	cmd.exe	95
PID 3568 wrote to memory of 4944	3568	cmd.exe	95
PID 4944 wrote to memory of 1000	4944	install_patched.exe	101
PID 4944 wrote to memory of 1000	4944	install_patched.exe	101
PID 4944 wrote to memory of 1000	4944	install_patched.exe	101

C:\Users\Admin\AppData\Local\Temp\install_patched.exe
"C:\Users\Admin\AppData\Local\Temp\install_patched.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3820
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  powershell Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Microsoft\Windows\search.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4768
- C:\Windows\SysWOW64\systeminfo.exe
  systeminfo
  2⤵
  - System Location Discovery: System Language Discovery
  - Gathers system information
  PID:4132

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1408
- C:\Windows\system32\cmd.exe
  "C:\Windows\system32\cmd.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3568
- - C:\Users\Admin\AppData\Local\Temp\install_patched.exe
    install_patched.exe
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4944
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Microsoft\Windows\search.exe"
      4⤵
      Command and Scripting Interpreter: PowerShell
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:1000

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\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
968cb9309758126772781b83adb8a28f

SHA1
8da30e71accf186b2ba11da1797cf67f8f78b47c

SHA256
92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

SHA512
4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
18KB

MD5
052bc828e0c0b5ef0d7ebaaf900f8d99

SHA1
045d28ef2295dd02deee936f88eff3dfc9fcd021

SHA256
723d9627a58f019911a657c3647f6e8a71a44e94699b57c619b42a03e3245122

SHA512
eadd592b64a50e52531cda8115725cac6101e36303ee33ef47461d215a770f22748223e908719a86a4268a1124c3747dd3f660b06c7c1bddeebe3fb83316327a

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_2pjnapgi.ocp.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\hyper-v.ver

Filesize
36B

MD5
4860625d1440aa41968f608d8beb16e2

SHA1
3b0ecc88e9699ce30cfe550c1096bcc8aae0ed4a

SHA256
ec0b476825ff0657be4ecac3609bd6da48bdc681de69a5dfd6ca4f5f05d65bcb

SHA512
8232ad755840f5708f083656b7c2667d8c5eac5e4feb1e5bcbe1663f14d539b02a3b61866fb3232182fcd6259af00847dad98e6f365df95be8c26c85f607e54f

Download Submit
memory/1000-108-0x0000000007BB0000-0x0000000007BC4000-memory.dmp

Filesize
80KB

Download
memory/1000-94-0x0000000005F70000-0x00000000062C4000-memory.dmp

Filesize
3.3MB

Download
memory/1000-96-0x000000006FF10000-0x000000006FF5C000-memory.dmp

Filesize
304KB

Download
memory/1000-106-0x00000000078C0000-0x0000000007963000-memory.dmp

Filesize
652KB

Download
memory/1000-107-0x0000000007B80000-0x0000000007B91000-memory.dmp

Filesize
68KB

Download
memory/1408-14-0x00007FF9430B0000-0x00007FF943B71000-memory.dmp

Filesize
10.8MB

Download
memory/1408-22-0x00007FF9430B0000-0x00007FF943B71000-memory.dmp

Filesize
10.8MB

Download
memory/1408-21-0x000002AB52AF0000-0x000002AB52D0C000-memory.dmp

Filesize
2.1MB

Download
memory/1408-16-0x000002AB53170000-0x000002AB531E6000-memory.dmp

Filesize
472KB

Download
memory/1408-15-0x000002AB530A0000-0x000002AB530E4000-memory.dmp

Filesize
272KB

Download
memory/1408-2-0x00007FF9430B3000-0x00007FF9430B5000-memory.dmp

Filesize
8KB

Download
memory/1408-13-0x00007FF9430B0000-0x00007FF943B71000-memory.dmp

Filesize
10.8MB

Download
memory/1408-12-0x000002AB52AB0000-0x000002AB52AD2000-memory.dmp

Filesize
136KB

Download
memory/3820-24-0x0000000010000000-0x0000000010731000-memory.dmp

Filesize
7.2MB

Download
memory/4768-57-0x0000000007320000-0x000000000733E000-memory.dmp

Filesize
120KB

Download
memory/4768-67-0x0000000007700000-0x0000000007708000-memory.dmp

Filesize
32KB

Download
memory/4768-58-0x0000000007340000-0x00000000073E3000-memory.dmp

Filesize
652KB

Download
memory/4768-59-0x0000000007AC0000-0x000000000813A000-memory.dmp

Filesize
6.5MB

Download
memory/4768-60-0x0000000007480000-0x000000000749A000-memory.dmp

Filesize
104KB

Download
memory/4768-61-0x00000000074E0000-0x00000000074EA000-memory.dmp

Filesize
40KB

Download
memory/4768-62-0x0000000007710000-0x00000000077A6000-memory.dmp

Filesize
600KB

Download
memory/4768-63-0x0000000007680000-0x0000000007691000-memory.dmp

Filesize
68KB

Download
memory/4768-64-0x00000000076B0000-0x00000000076BE000-memory.dmp

Filesize
56KB

Download
memory/4768-65-0x00000000076C0000-0x00000000076D4000-memory.dmp

Filesize
80KB

Download
memory/4768-66-0x00000000077D0000-0x00000000077EA000-memory.dmp

Filesize
104KB

Download
memory/4768-46-0x0000000006720000-0x0000000006752000-memory.dmp

Filesize
200KB

Download
memory/4768-47-0x000000006FF10000-0x000000006FF5C000-memory.dmp

Filesize
304KB

Download
memory/4768-28-0x0000000002830000-0x0000000002866000-memory.dmp

Filesize
216KB

Download
memory/4768-45-0x0000000006340000-0x000000000638C000-memory.dmp

Filesize
304KB

Download
memory/4768-44-0x0000000006150000-0x000000000616E000-memory.dmp

Filesize
120KB

Download
memory/4768-43-0x0000000005C90000-0x0000000005FE4000-memory.dmp

Filesize
3.3MB

Download
memory/4768-32-0x0000000005980000-0x00000000059E6000-memory.dmp

Filesize
408KB

Download
memory/4768-33-0x0000000005B20000-0x0000000005B86000-memory.dmp

Filesize
408KB

Download
memory/4768-31-0x00000000058E0000-0x0000000005902000-memory.dmp

Filesize
136KB

Download
memory/4768-29-0x00000000052A0000-0x00000000058C8000-memory.dmp

Filesize
6.2MB

Download
memory/4944-78-0x0000000010000000-0x0000000010731000-memory.dmp

Filesize
7.2MB

Download

Analysis

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