metastealer | aaf2fa68b8c0a8ad0a24c93033f50fdbbfb48303bef53383533291f2ab738038

Analysis

max time kernel
148s
max time network
152s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
13-12-2024 02:54

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General

Target

aaf2fa68b8c0a8ad0a24c93033f50fdbbfb48303bef53383533291f2ab738038.dll
Size

2.1MB
MD5

74d7bbdf21ead237327f07f5296d4e8d
SHA1

1ad74ce06e60835730fc5ebddb75661ab01a6d6a
SHA256

aaf2fa68b8c0a8ad0a24c93033f50fdbbfb48303bef53383533291f2ab738038
SHA512

b622ded868b24ef8b096242e0f253af4d8e4cf598d495b6cc2b6426ef3f9dc3cb3c5b7209310c3f1c0c19f4727f1d7d6eab136f1b169756fcf20e3cb26ef23ec
SSDEEP

49152:sneA4p84q2WD4WkfFSJNWA6uq4CJ3GJEmNrmqu6Yx1CPwDv3uFfJ7:LlqLU3kCJ6ly1CPwDv3uFfJ7

Score

10^/10

metastealer discovery execution spyware stealer

Malware Config

Extracted

Family

metastealer

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/1132-71-0x0000000010000000-0x0000000010731000-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
960	powershell.exe

Executes dropped EXE 1 IoCs

pid	Process
1132	setup.exe

Loads dropped DLL 4 IoCs

pid	Process
2036	MsiExec.exe
2036	MsiExec.exe
2036	MsiExec.exe
2036	MsiExec.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
2928	ICACLS.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

Enumerates connected drives 3 TTPs 23 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\B:	msiexec.exe
File opened (read-only)	\??\I:	msiexec.exe
File opened (read-only)	\??\J:	msiexec.exe
File opened (read-only)	\??\K:	msiexec.exe
File opened (read-only)	\??\O:	msiexec.exe
File opened (read-only)	\??\S:	msiexec.exe
File opened (read-only)	\??\T:	msiexec.exe
File opened (read-only)	\??\A:	msiexec.exe
File opened (read-only)	\??\H:	msiexec.exe
File opened (read-only)	\??\L:	msiexec.exe
File opened (read-only)	\??\N:	msiexec.exe
File opened (read-only)	\??\R:	msiexec.exe
File opened (read-only)	\??\Y:	msiexec.exe
File opened (read-only)	\??\Z:	msiexec.exe
File opened (read-only)	\??\E:	msiexec.exe
File opened (read-only)	\??\U:	msiexec.exe
File opened (read-only)	\??\V:	msiexec.exe
File opened (read-only)	\??\W:	msiexec.exe
File opened (read-only)	\??\X:	msiexec.exe
File opened (read-only)	\??\P:	msiexec.exe
File opened (read-only)	\??\M:	msiexec.exe
File opened (read-only)	\??\Q:	msiexec.exe
File opened (read-only)	\??\G:	msiexec.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\%ProgramData%\Microsoft\Windows\Start Menu\Programs\Accessories\Windows PowerShell\Windows PowerShell.lnk	powershell.exe

Drops file in Windows directory 7 IoCs

description	ioc	Process
File opened for modification	C:\Windows\Installer\	msiexec.exe
File opened for modification	C:\Windows\Installer\MSIA8AE.tmp	msiexec.exe
File opened for modification	C:\Windows\Logs\DPX\setupact.log	EXPAND.EXE
File opened for modification	C:\Windows\Logs\DPX\setuperr.log	EXPAND.EXE
File created	C:\Windows\Installer\f77a267.msi	msiexec.exe
File opened for modification	C:\Windows\Installer\f77a267.msi	msiexec.exe
File created	C:\Windows\Installer\f77a26a.ipi	msiexec.exe

System Location Discovery: System Language Discovery 1 TTPs 6 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	systeminfo.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MsiExec.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ICACLS.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	EXPAND.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	setup.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
2544	systeminfo.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
2156	msiexec.exe
2156	msiexec.exe
960	powershell.exe
1132	setup.exe
1132	setup.exe
1132	setup.exe
1132	setup.exe
1132	setup.exe
1132	setup.exe

Suspicious use of AdjustPrivilegeToken 39 IoCs

description	pid	Process
Token: SeShutdownPrivilege	2044	msiexec.exe
Token: SeIncreaseQuotaPrivilege	2044	msiexec.exe
Token: SeRestorePrivilege	2156	msiexec.exe
Token: SeTakeOwnershipPrivilege	2156	msiexec.exe
Token: SeSecurityPrivilege	2156	msiexec.exe
Token: SeCreateTokenPrivilege	2044	msiexec.exe
Token: SeAssignPrimaryTokenPrivilege	2044	msiexec.exe
Token: SeLockMemoryPrivilege	2044	msiexec.exe
Token: SeIncreaseQuotaPrivilege	2044	msiexec.exe
Token: SeMachineAccountPrivilege	2044	msiexec.exe
Token: SeTcbPrivilege	2044	msiexec.exe
Token: SeSecurityPrivilege	2044	msiexec.exe
Token: SeTakeOwnershipPrivilege	2044	msiexec.exe
Token: SeLoadDriverPrivilege	2044	msiexec.exe
Token: SeSystemProfilePrivilege	2044	msiexec.exe
Token: SeSystemtimePrivilege	2044	msiexec.exe
Token: SeProfSingleProcessPrivilege	2044	msiexec.exe
Token: SeIncBasePriorityPrivilege	2044	msiexec.exe
Token: SeCreatePagefilePrivilege	2044	msiexec.exe
Token: SeCreatePermanentPrivilege	2044	msiexec.exe
Token: SeBackupPrivilege	2044	msiexec.exe
Token: SeRestorePrivilege	2044	msiexec.exe
Token: SeShutdownPrivilege	2044	msiexec.exe
Token: SeDebugPrivilege	2044	msiexec.exe
Token: SeAuditPrivilege	2044	msiexec.exe
Token: SeSystemEnvironmentPrivilege	2044	msiexec.exe
Token: SeChangeNotifyPrivilege	2044	msiexec.exe
Token: SeRemoteShutdownPrivilege	2044	msiexec.exe
Token: SeUndockPrivilege	2044	msiexec.exe
Token: SeSyncAgentPrivilege	2044	msiexec.exe
Token: SeEnableDelegationPrivilege	2044	msiexec.exe
Token: SeManageVolumePrivilege	2044	msiexec.exe
Token: SeImpersonatePrivilege	2044	msiexec.exe
Token: SeCreateGlobalPrivilege	2044	msiexec.exe
Token: SeRestorePrivilege	2156	msiexec.exe
Token: SeTakeOwnershipPrivilege	2156	msiexec.exe
Token: SeRestorePrivilege	2156	msiexec.exe
Token: SeTakeOwnershipPrivilege	2156	msiexec.exe
Token: SeDebugPrivilege	960	powershell.exe

Suspicious use of WriteProcessMemory 35 IoCs

description	pid	Process	procid_target
PID 1688 wrote to memory of 2044	1688	rundll32.exe	30
PID 1688 wrote to memory of 2044	1688	rundll32.exe	30
PID 1688 wrote to memory of 2044	1688	rundll32.exe	30
PID 1688 wrote to memory of 2044	1688	rundll32.exe	30
PID 1688 wrote to memory of 2044	1688	rundll32.exe	30
PID 2156 wrote to memory of 2036	2156	msiexec.exe	32
PID 2156 wrote to memory of 2036	2156	msiexec.exe	32
PID 2156 wrote to memory of 2036	2156	msiexec.exe	32
PID 2156 wrote to memory of 2036	2156	msiexec.exe	32
PID 2156 wrote to memory of 2036	2156	msiexec.exe	32
PID 2156 wrote to memory of 2036	2156	msiexec.exe	32
PID 2156 wrote to memory of 2036	2156	msiexec.exe	32
PID 2036 wrote to memory of 2928	2036	MsiExec.exe	33
PID 2036 wrote to memory of 2928	2036	MsiExec.exe	33
PID 2036 wrote to memory of 2928	2036	MsiExec.exe	33
PID 2036 wrote to memory of 2928	2036	MsiExec.exe	33
PID 2036 wrote to memory of 2548	2036	MsiExec.exe	35
PID 2036 wrote to memory of 2548	2036	MsiExec.exe	35
PID 2036 wrote to memory of 2548	2036	MsiExec.exe	35
PID 2036 wrote to memory of 2548	2036	MsiExec.exe	35
PID 2036 wrote to memory of 1132	2036	MsiExec.exe	37
PID 2036 wrote to memory of 1132	2036	MsiExec.exe	37
PID 2036 wrote to memory of 1132	2036	MsiExec.exe	37
PID 2036 wrote to memory of 1132	2036	MsiExec.exe	37
PID 2036 wrote to memory of 1132	2036	MsiExec.exe	37
PID 2036 wrote to memory of 1132	2036	MsiExec.exe	37
PID 2036 wrote to memory of 1132	2036	MsiExec.exe	37
PID 1132 wrote to memory of 960	1132	setup.exe	39
PID 1132 wrote to memory of 960	1132	setup.exe	39
PID 1132 wrote to memory of 960	1132	setup.exe	39
PID 1132 wrote to memory of 960	1132	setup.exe	39
PID 1132 wrote to memory of 2544	1132	setup.exe	41
PID 1132 wrote to memory of 2544	1132	setup.exe	41
PID 1132 wrote to memory of 2544	1132	setup.exe	41
PID 1132 wrote to memory of 2544	1132	setup.exe	41

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\aaf2fa68b8c0a8ad0a24c93033f50fdbbfb48303bef53383533291f2ab738038.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1688
- C:\Windows\system32\msiexec.exe
  msiexec.exe /i "C:\Users\Admin\AppData\Local\Microsoft\Windows\windrv.msi" /Qn
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2044

C:\Windows\system32\msiexec.exe
C:\Windows\system32\msiexec.exe /V
1⤵
- Enumerates connected drives
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2156
- C:\Windows\syswow64\MsiExec.exe
  C:\Windows\syswow64\MsiExec.exe -Embedding DBB7FC324351AAB229BA38A7CF81D0CB
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2036
- - C:\Windows\SysWOW64\ICACLS.EXE
    "C:\Windows\system32\ICACLS.EXE" "C:\Users\Admin\AppData\Local\Temp\MW-b2c70913-c9cb-4afb-8e19-a63ea9974bf9\." /SETINTEGRITYLEVEL (CI)(OI)HIGH
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:2928
- - C:\Windows\SysWOW64\EXPAND.EXE
    "C:\Windows\system32\EXPAND.EXE" -R files.cab -F:* files
    3⤵
    - Drops file in Windows directory
    - System Location Discovery: System Language Discovery
    PID:2548
- - C:\Users\Admin\AppData\Local\Temp\MW-b2c70913-c9cb-4afb-8e19-a63ea9974bf9\files\setup.exe
    "C:\Users\Admin\AppData\Local\Temp\MW-b2c70913-c9cb-4afb-8e19-a63ea9974bf9\files\setup.exe" /VERYSILENT /VERYSILENT
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:1132
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Microsoft\Windows\systemtask.exe"
      4⤵
      Command and Scripting Interpreter: PowerShell
      Drops file in System32 directory
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:960
  - - C:\Windows\SysWOW64\systeminfo.exe
      systeminfo
      4⤵
      System Location Discovery: System Language Discovery
      Gathers system information
      PID:2544

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

Defense Evasion

File and Directory Permissions Modification

T1222

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Peripheral Device Discovery

T1120

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

C:\Users\Admin\AppData\Local\Microsoft\Windows\windrv.msi

Filesize
1.6MB

MD5
ebf9aec610ffb1a4cf2bc72722d2b7aa

SHA1
c59e7409eba5429321b9f1741db9336dcdf6897d

SHA256
66d7083b0c8f714aaa89bf29eaf6b26f8fbde249948401d777f75c99865a9ae3

SHA512
13d3ea3fc2f554c08c790b25f145d58c75a14f364956de706c42d01bac6abfcff262156ddac36038504551f32ab9d26155a1a82d7edb494ade29a7b67276a1b9

Download Submit
C:\Users\Admin\AppData\Local\Temp\MW-b2c70913-c9cb-4afb-8e19-a63ea9974bf9\files.cab

Filesize
1.3MB

MD5
fa946fbc8adb45ff63876866dfc4baf4

SHA1
9bc31fe8598eb0922c81429338421dca5d4876c7

SHA256
17e2b8de9ef45ad708adeeee5a98ca753751e2e7ecfe83c53dda44d6e04e354a

SHA512
c5ab6b90e761c50c04d88e18e84cc1978eec5dabfaaca0b3e909b286001297bd7c3ad651a3a2b9f3071d61b94db54be0810bb91f5d6d2d0ef0cae9152171f4b3

Download Submit
C:\Users\Admin\AppData\Local\Temp\MW-b2c70913-c9cb-4afb-8e19-a63ea9974bf9\msiwrapper.ini

Filesize
1KB

MD5
e601aa9ddcc828ec9b8ab42a5ec1f24b

SHA1
56d251bd4662f07716d8970785cfdc50e3f49b94

SHA256
2e5e1c91c77f26164734f0ad2e8b0de23a4ce2274e4b1524cc1dce4086ab20ee

SHA512
97374c90141aaff3c3d7c1fcd4ab1c491e437962f41633297961171d8f1eb9b90d55ec7ea11064bd77be558953c99f68b8118f6589cd131e3822c49ded5bf643

Download Submit
C:\Windows\Installer\MSIA8AE.tmp

Filesize
208KB

MD5
0c8921bbcc37c6efd34faf44cf3b0cb5

SHA1
dcfa71246157edcd09eecaf9d4c5e360b24b3e49

SHA256
fd622cf73ea951a6de631063aba856487d77745dd1500adca61902b8dde56fe1

SHA512
ed55443e20d40cca90596f0a0542fa5ab83fe0270399adfaafd172987fb813dfd44ec0da0a58c096af3641003f830341fe259ad5bce9823f238ae63b7e11e108

Download Submit
memory/1132-71-0x0000000010000000-0x0000000010731000-memory.dmp

Filesize
7.2MB

Download