metastealer | aaf2fa68b8c0a8ad0a24c93033f50fdbbfb48303bef53383533291f2ab738038

Analysis

max time kernel
130s
max time network
134s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
13-12-2024 11:15

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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/2644-70-0x0000000010000000-0x0000000010731000-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
1836	powershell.exe

Executes dropped EXE 1 IoCs

pid	Process
2644	setup.exe

Loads dropped DLL 4 IoCs

pid	Process
1752	MsiExec.exe
1752	MsiExec.exe
1752	MsiExec.exe
1752	MsiExec.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
2596	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)	\??\Y:	msiexec.exe
File opened (read-only)	\??\Z:	msiexec.exe
File opened (read-only)	\??\G:	msiexec.exe
File opened (read-only)	\??\K:	msiexec.exe
File opened (read-only)	\??\T:	msiexec.exe
File opened (read-only)	\??\V:	msiexec.exe
File opened (read-only)	\??\U:	msiexec.exe
File opened (read-only)	\??\A:	msiexec.exe
File opened (read-only)	\??\N:	msiexec.exe
File opened (read-only)	\??\O:	msiexec.exe
File opened (read-only)	\??\S:	msiexec.exe
File opened (read-only)	\??\M:	msiexec.exe
File opened (read-only)	\??\P:	msiexec.exe
File opened (read-only)	\??\W:	msiexec.exe
File opened (read-only)	\??\X:	msiexec.exe
File opened (read-only)	\??\H:	msiexec.exe
File opened (read-only)	\??\I:	msiexec.exe
File opened (read-only)	\??\J:	msiexec.exe
File opened (read-only)	\??\L:	msiexec.exe
File opened (read-only)	\??\B:	msiexec.exe
File opened (read-only)	\??\E:	msiexec.exe
File opened (read-only)	\??\Q:	msiexec.exe
File opened (read-only)	\??\R:	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 created	C:\Windows\Installer\f76b242.ipi	msiexec.exe
File opened for modification	C:\Windows\Installer\	msiexec.exe
File opened for modification	C:\Windows\Installer\MSIB3D5.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\f76b23f.msi	msiexec.exe
File opened for modification	C:\Windows\Installer\f76b23f.msi	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	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
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
3028	systeminfo.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
2292	msiexec.exe
2292	msiexec.exe
1836	powershell.exe
2644	setup.exe
2644	setup.exe
2644	setup.exe
2644	setup.exe
2644	setup.exe
2644	setup.exe

Suspicious use of AdjustPrivilegeToken 39 IoCs

description	pid	Process
Token: SeShutdownPrivilege	2412	msiexec.exe
Token: SeIncreaseQuotaPrivilege	2412	msiexec.exe
Token: SeRestorePrivilege	2292	msiexec.exe
Token: SeTakeOwnershipPrivilege	2292	msiexec.exe
Token: SeSecurityPrivilege	2292	msiexec.exe
Token: SeCreateTokenPrivilege	2412	msiexec.exe
Token: SeAssignPrimaryTokenPrivilege	2412	msiexec.exe
Token: SeLockMemoryPrivilege	2412	msiexec.exe
Token: SeIncreaseQuotaPrivilege	2412	msiexec.exe
Token: SeMachineAccountPrivilege	2412	msiexec.exe
Token: SeTcbPrivilege	2412	msiexec.exe
Token: SeSecurityPrivilege	2412	msiexec.exe
Token: SeTakeOwnershipPrivilege	2412	msiexec.exe
Token: SeLoadDriverPrivilege	2412	msiexec.exe
Token: SeSystemProfilePrivilege	2412	msiexec.exe
Token: SeSystemtimePrivilege	2412	msiexec.exe
Token: SeProfSingleProcessPrivilege	2412	msiexec.exe
Token: SeIncBasePriorityPrivilege	2412	msiexec.exe
Token: SeCreatePagefilePrivilege	2412	msiexec.exe
Token: SeCreatePermanentPrivilege	2412	msiexec.exe
Token: SeBackupPrivilege	2412	msiexec.exe
Token: SeRestorePrivilege	2412	msiexec.exe
Token: SeShutdownPrivilege	2412	msiexec.exe
Token: SeDebugPrivilege	2412	msiexec.exe
Token: SeAuditPrivilege	2412	msiexec.exe
Token: SeSystemEnvironmentPrivilege	2412	msiexec.exe
Token: SeChangeNotifyPrivilege	2412	msiexec.exe
Token: SeRemoteShutdownPrivilege	2412	msiexec.exe
Token: SeUndockPrivilege	2412	msiexec.exe
Token: SeSyncAgentPrivilege	2412	msiexec.exe
Token: SeEnableDelegationPrivilege	2412	msiexec.exe
Token: SeManageVolumePrivilege	2412	msiexec.exe
Token: SeImpersonatePrivilege	2412	msiexec.exe
Token: SeCreateGlobalPrivilege	2412	msiexec.exe
Token: SeRestorePrivilege	2292	msiexec.exe
Token: SeTakeOwnershipPrivilege	2292	msiexec.exe
Token: SeRestorePrivilege	2292	msiexec.exe
Token: SeTakeOwnershipPrivilege	2292	msiexec.exe
Token: SeDebugPrivilege	1836	powershell.exe

Suspicious use of WriteProcessMemory 35 IoCs

description	pid	Process	procid_target
PID 1940 wrote to memory of 2412	1940	rundll32.exe	30
PID 1940 wrote to memory of 2412	1940	rundll32.exe	30
PID 1940 wrote to memory of 2412	1940	rundll32.exe	30
PID 1940 wrote to memory of 2412	1940	rundll32.exe	30
PID 1940 wrote to memory of 2412	1940	rundll32.exe	30
PID 2292 wrote to memory of 1752	2292	msiexec.exe	32
PID 2292 wrote to memory of 1752	2292	msiexec.exe	32
PID 2292 wrote to memory of 1752	2292	msiexec.exe	32
PID 2292 wrote to memory of 1752	2292	msiexec.exe	32
PID 2292 wrote to memory of 1752	2292	msiexec.exe	32
PID 2292 wrote to memory of 1752	2292	msiexec.exe	32
PID 2292 wrote to memory of 1752	2292	msiexec.exe	32
PID 1752 wrote to memory of 2596	1752	MsiExec.exe	33
PID 1752 wrote to memory of 2596	1752	MsiExec.exe	33
PID 1752 wrote to memory of 2596	1752	MsiExec.exe	33
PID 1752 wrote to memory of 2596	1752	MsiExec.exe	33
PID 1752 wrote to memory of 2732	1752	MsiExec.exe	35
PID 1752 wrote to memory of 2732	1752	MsiExec.exe	35
PID 1752 wrote to memory of 2732	1752	MsiExec.exe	35
PID 1752 wrote to memory of 2732	1752	MsiExec.exe	35
PID 1752 wrote to memory of 2644	1752	MsiExec.exe	37
PID 1752 wrote to memory of 2644	1752	MsiExec.exe	37
PID 1752 wrote to memory of 2644	1752	MsiExec.exe	37
PID 1752 wrote to memory of 2644	1752	MsiExec.exe	37
PID 1752 wrote to memory of 2644	1752	MsiExec.exe	37
PID 1752 wrote to memory of 2644	1752	MsiExec.exe	37
PID 1752 wrote to memory of 2644	1752	MsiExec.exe	37
PID 2644 wrote to memory of 1836	2644	setup.exe	39
PID 2644 wrote to memory of 1836	2644	setup.exe	39
PID 2644 wrote to memory of 1836	2644	setup.exe	39
PID 2644 wrote to memory of 1836	2644	setup.exe	39
PID 2644 wrote to memory of 3028	2644	setup.exe	41
PID 2644 wrote to memory of 3028	2644	setup.exe	41
PID 2644 wrote to memory of 3028	2644	setup.exe	41
PID 2644 wrote to memory of 3028	2644	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:1940
- C:\Windows\system32\msiexec.exe
  msiexec.exe /i "C:\Users\Admin\AppData\Local\Microsoft\Windows\windrv.msi" /Qn
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2412

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:2292
- C:\Windows\syswow64\MsiExec.exe
  C:\Windows\syswow64\MsiExec.exe -Embedding B63C03A731B2864D15490EFCDBF18C12
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1752
- - C:\Windows\SysWOW64\ICACLS.EXE
    "C:\Windows\system32\ICACLS.EXE" "C:\Users\Admin\AppData\Local\Temp\MW-22698dd0-72e2-40eb-815e-26366333b816\." /SETINTEGRITYLEVEL (CI)(OI)HIGH
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:2596
- - 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:2732
- - C:\Users\Admin\AppData\Local\Temp\MW-22698dd0-72e2-40eb-815e-26366333b816\files\setup.exe
    "C:\Users\Admin\AppData\Local\Temp\MW-22698dd0-72e2-40eb-815e-26366333b816\files\setup.exe" /VERYSILENT /VERYSILENT
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:2644
  - - 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:1836
  - - C:\Windows\SysWOW64\systeminfo.exe
      systeminfo
      4⤵
      System Location Discovery: System Language Discovery
      Gathers system information
      PID:3028

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-22698dd0-72e2-40eb-815e-26366333b816\files.cab

Filesize
1.3MB

MD5
fa946fbc8adb45ff63876866dfc4baf4

SHA1
9bc31fe8598eb0922c81429338421dca5d4876c7

SHA256
17e2b8de9ef45ad708adeeee5a98ca753751e2e7ecfe83c53dda44d6e04e354a

SHA512
c5ab6b90e761c50c04d88e18e84cc1978eec5dabfaaca0b3e909b286001297bd7c3ad651a3a2b9f3071d61b94db54be0810bb91f5d6d2d0ef0cae9152171f4b3

Download Submit
C:\Users\Admin\AppData\Local\Temp\MW-22698dd0-72e2-40eb-815e-26366333b816\msiwrapper.ini

Filesize
1KB

MD5
085d5ef76b771cd9d8e95021548ab76c

SHA1
6e71d56b4ca427a4a05f61848676187b630d214b

SHA256
cc0e7d17a9f54a1626a513146c6c85877c875e4e745a86f44cc6adbe546c6e56

SHA512
b7910a1dcc418aee020c7b07e4949e4010ce0ffe49f6b2392a4f56e1f52b369576591ddca2613255c9d3240da3f5574f8e960e2689b19a281df8ae70902d36dc

Download Submit
C:\Users\Admin\AppData\Local\Temp\MW-22698dd0-72e2-40eb-815e-26366333b816\msiwrapper.ini

Filesize
1KB

MD5
4d0b37a2a84757367a5f20f2f967eed7

SHA1
970fbb20dc5ad8996f5742b13d56b414d2be7e1b

SHA256
65126bae5acc456a71d9d73b414aa78e9b5c08f7f373c86996e2217b9a1e7f48

SHA512
a99c3875c62068b10dea02e458cee99b87dd3a0e0d91685cbb5f1ebeac68f0abd578ccd27dcc603f8edf3c3d2b193609d1038fd8d159e7f4af9b97a24701a304

Download Submit
C:\Windows\Installer\MSIB3D5.tmp

Filesize
208KB

MD5
0c8921bbcc37c6efd34faf44cf3b0cb5

SHA1
dcfa71246157edcd09eecaf9d4c5e360b24b3e49

SHA256
fd622cf73ea951a6de631063aba856487d77745dd1500adca61902b8dde56fe1

SHA512
ed55443e20d40cca90596f0a0542fa5ab83fe0270399adfaafd172987fb813dfd44ec0da0a58c096af3641003f830341fe259ad5bce9823f238ae63b7e11e108

Download Submit
memory/2644-70-0x0000000010000000-0x0000000010731000-memory.dmp

Filesize
7.2MB

Download