metastealer | 79d7036b030dcaaec258637b01dbc4f9786d6777afe85f6fe397d6034e2f4806

Analysis

max time kernel
121s
max time network
122s
platform
windows7_x64
resource
win7-20240611-en
resource tags

arch:x64arch:x86image:win7-20240611-enlocale:en-usos:windows7-x64system
submitted
03-07-2024 18:04

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General

Target

Untitled_June_06_25_2024_export.pdf.exe
Size

801KB
MD5

41dcc29d7eaba7b84fd54323394712af
SHA1

ddc0100723cc2dc9ae8b02a0cb7fe4a86c02d54b
SHA256

a909bef708a47ae428fedbc566132c56f15ae7511dc460cf22055ec1a72d485a
SHA512

5a3e8c1eda558e0b90470d752490bc4d04610f93e453cbfd9013a363cfdf5e607974d526c49efe2ef0440e241d775b66bd7c48c74ee9e8677a37cdedc30c42ee
SSDEEP

6144:xmbuKA33X1rgMuu+xdaXkW+zF6m8XZPELSrPzA:x6XA33X1rTuuyrVZ6m8XGH

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
behavioral2/memory/2960-70-0x0000000010000000-0x000000001072E000-memory.dmp	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
2084	powershell.exe
1188	powershell.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
2624	ICACLS.EXE

Reads user/profile data of web browsers 2 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

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

Drops file in System32 directory 2 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
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\f761cf6.ipi	msiexec.exe
File opened for modification	C:\Windows\Installer\	msiexec.exe
File opened for modification	C:\Windows\Installer\MSI1F15.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\f761cf3.msi	msiexec.exe
File opened for modification	C:\Windows\Installer\f761cf3.msi	msiexec.exe

Executes dropped EXE 1 IoCs

pid	Process
2960	setup.exe

Loads dropped DLL 4 IoCs

pid	Process
2528	MsiExec.exe
2528	MsiExec.exe
2528	MsiExec.exe
2528	MsiExec.exe

Gathers system information 1 TTPs 1 IoCs

Runs systeminfo.exe.

System Information Discovery

T1082

pid	Process
2000	systeminfo.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
2760	msiexec.exe
2760	msiexec.exe
2084	powershell.exe
2960	setup.exe
2960	setup.exe
2960	setup.exe
2960	setup.exe
2960	setup.exe
2960	setup.exe
1188	powershell.exe

Suspicious use of AdjustPrivilegeToken 40 IoCs

description	pid	Process
Token: SeShutdownPrivilege	1912	msiexec.exe
Token: SeIncreaseQuotaPrivilege	1912	msiexec.exe
Token: SeRestorePrivilege	2760	msiexec.exe
Token: SeTakeOwnershipPrivilege	2760	msiexec.exe
Token: SeSecurityPrivilege	2760	msiexec.exe
Token: SeCreateTokenPrivilege	1912	msiexec.exe
Token: SeAssignPrimaryTokenPrivilege	1912	msiexec.exe
Token: SeLockMemoryPrivilege	1912	msiexec.exe
Token: SeIncreaseQuotaPrivilege	1912	msiexec.exe
Token: SeMachineAccountPrivilege	1912	msiexec.exe
Token: SeTcbPrivilege	1912	msiexec.exe
Token: SeSecurityPrivilege	1912	msiexec.exe
Token: SeTakeOwnershipPrivilege	1912	msiexec.exe
Token: SeLoadDriverPrivilege	1912	msiexec.exe
Token: SeSystemProfilePrivilege	1912	msiexec.exe
Token: SeSystemtimePrivilege	1912	msiexec.exe
Token: SeProfSingleProcessPrivilege	1912	msiexec.exe
Token: SeIncBasePriorityPrivilege	1912	msiexec.exe
Token: SeCreatePagefilePrivilege	1912	msiexec.exe
Token: SeCreatePermanentPrivilege	1912	msiexec.exe
Token: SeBackupPrivilege	1912	msiexec.exe
Token: SeRestorePrivilege	1912	msiexec.exe
Token: SeShutdownPrivilege	1912	msiexec.exe
Token: SeDebugPrivilege	1912	msiexec.exe
Token: SeAuditPrivilege	1912	msiexec.exe
Token: SeSystemEnvironmentPrivilege	1912	msiexec.exe
Token: SeChangeNotifyPrivilege	1912	msiexec.exe
Token: SeRemoteShutdownPrivilege	1912	msiexec.exe
Token: SeUndockPrivilege	1912	msiexec.exe
Token: SeSyncAgentPrivilege	1912	msiexec.exe
Token: SeEnableDelegationPrivilege	1912	msiexec.exe
Token: SeManageVolumePrivilege	1912	msiexec.exe
Token: SeImpersonatePrivilege	1912	msiexec.exe
Token: SeCreateGlobalPrivilege	1912	msiexec.exe
Token: SeRestorePrivilege	2760	msiexec.exe
Token: SeTakeOwnershipPrivilege	2760	msiexec.exe
Token: SeRestorePrivilege	2760	msiexec.exe
Token: SeTakeOwnershipPrivilege	2760	msiexec.exe
Token: SeDebugPrivilege	2084	powershell.exe
Token: SeDebugPrivilege	1188	powershell.exe

Suspicious use of WriteProcessMemory 39 IoCs

description	pid	Process	procid_target
PID 3060 wrote to memory of 1912	3060	Untitled_June_06_25_2024_export.pdf.exe	28
PID 3060 wrote to memory of 1912	3060	Untitled_June_06_25_2024_export.pdf.exe	28
PID 3060 wrote to memory of 1912	3060	Untitled_June_06_25_2024_export.pdf.exe	28
PID 3060 wrote to memory of 1912	3060	Untitled_June_06_25_2024_export.pdf.exe	28
PID 3060 wrote to memory of 1912	3060	Untitled_June_06_25_2024_export.pdf.exe	28
PID 2760 wrote to memory of 2528	2760	msiexec.exe	30
PID 2760 wrote to memory of 2528	2760	msiexec.exe	30
PID 2760 wrote to memory of 2528	2760	msiexec.exe	30
PID 2760 wrote to memory of 2528	2760	msiexec.exe	30
PID 2760 wrote to memory of 2528	2760	msiexec.exe	30
PID 2760 wrote to memory of 2528	2760	msiexec.exe	30
PID 2760 wrote to memory of 2528	2760	msiexec.exe	30
PID 2528 wrote to memory of 2624	2528	MsiExec.exe	31
PID 2528 wrote to memory of 2624	2528	MsiExec.exe	31
PID 2528 wrote to memory of 2624	2528	MsiExec.exe	31
PID 2528 wrote to memory of 2624	2528	MsiExec.exe	31
PID 2528 wrote to memory of 3068	2528	MsiExec.exe	33
PID 2528 wrote to memory of 3068	2528	MsiExec.exe	33
PID 2528 wrote to memory of 3068	2528	MsiExec.exe	33
PID 2528 wrote to memory of 3068	2528	MsiExec.exe	33
PID 2528 wrote to memory of 2960	2528	MsiExec.exe	35
PID 2528 wrote to memory of 2960	2528	MsiExec.exe	35
PID 2528 wrote to memory of 2960	2528	MsiExec.exe	35
PID 2528 wrote to memory of 2960	2528	MsiExec.exe	35
PID 2528 wrote to memory of 2960	2528	MsiExec.exe	35
PID 2528 wrote to memory of 2960	2528	MsiExec.exe	35
PID 2528 wrote to memory of 2960	2528	MsiExec.exe	35
PID 2960 wrote to memory of 2084	2960	setup.exe	38
PID 2960 wrote to memory of 2084	2960	setup.exe	38
PID 2960 wrote to memory of 2084	2960	setup.exe	38
PID 2960 wrote to memory of 2084	2960	setup.exe	38
PID 2960 wrote to memory of 2000	2960	setup.exe	40
PID 2960 wrote to memory of 2000	2960	setup.exe	40
PID 2960 wrote to memory of 2000	2960	setup.exe	40
PID 2960 wrote to memory of 2000	2960	setup.exe	40
PID 2960 wrote to memory of 1188	2960	setup.exe	44
PID 2960 wrote to memory of 1188	2960	setup.exe	44
PID 2960 wrote to memory of 1188	2960	setup.exe	44
PID 2960 wrote to memory of 1188	2960	setup.exe	44

C:\Users\Admin\AppData\Local\Temp\Untitled_June_06_25_2024_export.pdf.exe
"C:\Users\Admin\AppData\Local\Temp\Untitled_June_06_25_2024_export.pdf.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3060
- C:\Windows\system32\msiexec.exe
  msiexec.exe /i "C:\Users\Admin\AppData\Local\Microsoft\Windows\windrv.msi" /Qn
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1912

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:2760
- C:\Windows\syswow64\MsiExec.exe
  C:\Windows\syswow64\MsiExec.exe -Embedding 99D0B2A7AD51F5A32418DF6EF346D0C9
  2⤵
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:2528
- - C:\Windows\SysWOW64\ICACLS.EXE
    "C:\Windows\system32\ICACLS.EXE" "C:\Users\Admin\AppData\Local\Temp\MW-40e0c818-e8ba-4561-9957-1cc73cdf5b5d\." /SETINTEGRITYLEVEL (CI)(OI)HIGH
    3⤵
    - Modifies file permissions
    PID:2624
- - C:\Windows\SysWOW64\EXPAND.EXE
    "C:\Windows\system32\EXPAND.EXE" -R files.cab -F:* files
    3⤵
    - Drops file in Windows directory
    PID:3068
- - C:\Users\Admin\AppData\Local\Temp\MW-40e0c818-e8ba-4561-9957-1cc73cdf5b5d\files\setup.exe
    "C:\Users\Admin\AppData\Local\Temp\MW-40e0c818-e8ba-4561-9957-1cc73cdf5b5d\files\setup.exe" /VERYSILENT /VERYSILENT
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:2960
  - - 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
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:2084
  - - C:\Windows\SysWOW64\systeminfo.exe
      systeminfo
      4⤵
      Gathers system information
      PID:2000
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell Add-MpPreference -ExclusionPath "$env:LOCALAPPDATA\Microsoft\windows\systemtask.exe"
      4⤵
      Command and Scripting Interpreter: PowerShell
      Drops file in System32 directory
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:1188

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

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
1.6MB

MD5
24cbbd2c70efbb75845548513114317e

SHA1
bd13f38e7301648b8cea6135a851b8691fda2c27

SHA256
b31e366ae13a960eb0efbfb5074b0abd1f300151289833d7dfa1a9382bea1855

SHA512
b7b0e4fa57e17b0da21a85f56f29a711ff226c8a9e95ca59721e4f20e32b9cbd8a5fdf69010e79f8452df5457a055cc2a41f2ad773eaf692680bc39cb8e50ead

Download Submit
C:\Users\Admin\AppData\Local\Temp\MW-40e0c818-e8ba-4561-9957-1cc73cdf5b5d\files.cab

Filesize
1.3MB

MD5
57c5b54337af1acd54c65c5abae694b2

SHA1
87b6b5eebf8fa70a42bd2cf192740b7130a521a2

SHA256
ead264b457fd74737f51a2c4bf5d4679d7e1dcdd1547aca6fe3bf7e117c9d0d8

SHA512
af10bdc86a45d59d6e46b5cfa942348360c3ac4312d122bf80783673c448861621811a2c3f4446355037b98a67f642cb8ae27945619d0cd32aaeff9656c0982e

Download Submit
C:\Users\Admin\AppData\Local\Temp\MW-40e0c818-e8ba-4561-9957-1cc73cdf5b5d\msiwrapper.ini

Filesize
1KB

MD5
ad8ca9e1aa83d827e3f2b120a37766e2

SHA1
7a42d3f429cbd2df5d05189d7e673119c52c524a

SHA256
eca6dc5bcbc4765b27c320595dd8ed50b9abb0b586d6239f049b997d18fd7f48

SHA512
f81943a012b3816eb7a4738831c2f767df6aedbb7dbe4c024fd09c6d803bfce0da3f5b3e4a97c38e48fa3017dd13a55b8d9a7620a10ebbc26e1957a7521bb344

Download Submit
C:\Users\Admin\AppData\Local\Temp\MW-40e0c818-e8ba-4561-9957-1cc73cdf5b5d\msiwrapper.ini

Filesize
1KB

MD5
23396610bbfb8842735e8bdb23e5f476

SHA1
4647a5519c852ff2c3f8422c9ffec7e513ca1799

SHA256
99ef32cf4fe83f3b05c2a22268d340618ec2db2daca36d1b6b98f26c2a979f20

SHA512
656209522d31a2d108be378fe092c25f3b81a2ade60d2aff27439928d38e66be8b7c22b0381902cfbce7b8d4243f77db08d3a5d2eb82fdeabb40d3f4c9dac901

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

Filesize
7KB

MD5
6f9016041e9a281c97f6e1fdc1186aa3

SHA1
3c9255a74b6db47581198f9950c8fe2ce3909e6a

SHA256
ddaf8b74af40311bf6568bdfc64cb1eb12a3ef8ae0847abcaeea3327c4dc055d

SHA512
b0bb66643ddc6c44c4757a54bdb03131b979bfae7a4a19051c024ed72a58f3d2be72629414a54ca7fb013309b261ff9e862ef8f215999e26e5b6ea188ca41edc

Download Submit
C:\Windows\Installer\MSI1F15.tmp

Filesize
208KB

MD5
0c8921bbcc37c6efd34faf44cf3b0cb5

SHA1
dcfa71246157edcd09eecaf9d4c5e360b24b3e49

SHA256
fd622cf73ea951a6de631063aba856487d77745dd1500adca61902b8dde56fe1

SHA512
ed55443e20d40cca90596f0a0542fa5ab83fe0270399adfaafd172987fb813dfd44ec0da0a58c096af3641003f830341fe259ad5bce9823f238ae63b7e11e108

Download Submit
memory/2960-70-0x0000000010000000-0x000000001072E000-memory.dmp

Filesize
7.2MB

Download