metastealer | aeac583de2f996861e6a523c6759e9bebb3111d77d98277c207c5448cb8d0da6

Analysis

max time kernel
157s
max time network
178s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
10-04-2024 08:23

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General

Target

file_transfer_tools.exe
Size

801KB
MD5

41dcc29d7eaba7b84fd54323394712af
SHA1

ddc0100723cc2dc9ae8b02a0cb7fe4a86c02d54b
SHA256

a909bef708a47ae428fedbc566132c56f15ae7511dc460cf22055ec1a72d485a
SHA512

5a3e8c1eda558e0b90470d752490bc4d04610f93e453cbfd9013a363cfdf5e607974d526c49efe2ef0440e241d775b66bd7c48c74ee9e8677a37cdedc30c42ee
SSDEEP

6144:xmbuKA33X1rgMuu+xdaXkW+zF6m8XZPELSrPzA:x6XA33X1rTuuyrVZ6m8XGH

Score

10^/10

metastealer discovery spyware stealer

Malware Config

Signatures

Meta Stealer
Meta Stealer steals passwords stored in browsers, written in C++.
stealer metastealer

MetaStealer payload 1 IoCs

resource	yara_rule
behavioral2/memory/2856-71-0x0000000010000000-0x000000001072E000-memory.dmp	family_metastealer

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
3928	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)	\??\I:	msiexec.exe
File opened (read-only)	\??\K:	msiexec.exe
File opened (read-only)	\??\M:	msiexec.exe
File opened (read-only)	\??\N:	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)	\??\P:	msiexec.exe
File opened (read-only)	\??\Q:	msiexec.exe
File opened (read-only)	\??\Y:	msiexec.exe
File opened (read-only)	\??\E:	msiexec.exe
File opened (read-only)	\??\G:	msiexec.exe
File opened (read-only)	\??\H:	msiexec.exe
File opened (read-only)	\??\O:	msiexec.exe
File opened (read-only)	\??\R:	msiexec.exe
File opened (read-only)	\??\T:	msiexec.exe
File opened (read-only)	\??\X:	msiexec.exe
File opened (read-only)	\??\A:	msiexec.exe
File opened (read-only)	\??\B:	msiexec.exe
File opened (read-only)	\??\J:	msiexec.exe
File opened (read-only)	\??\L:	msiexec.exe
File opened (read-only)	\??\S:	msiexec.exe
File opened (read-only)	\??\Z:	msiexec.exe

Drops file in Windows directory 9 IoCs

description	ioc	Process
File opened for modification	C:\Windows\Installer\e582650.msi	msiexec.exe
File opened for modification	C:\Windows\Microsoft.NET\Framework64\v4.0.30319\ngen.log	msiexec.exe
File created	C:\Windows\Installer\inprogressinstallinfo.ipi	msiexec.exe
File opened for modification	C:\Windows\Installer\MSI4428.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\e582650.msi	msiexec.exe
File created	C:\Windows\Installer\SourceHash{81A17A41-E69F-46B1-96C9-D3B6A8E23A5F}	msiexec.exe
File opened for modification	C:\Windows\Installer\	msiexec.exe

Executes dropped EXE 1 IoCs

pid	Process
2856	setup.exe

Loads dropped DLL 1 IoCs

pid	Process
2508	MsiExec.exe

Gathers system information 1 TTPs 1 IoCs

Runs systeminfo.exe.

System Information Discovery

T1082

pid	Process
4536	systeminfo.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2944	msiexec.exe
2944	msiexec.exe
2856	setup.exe
2856	setup.exe
2772	powershell.exe
2772	powershell.exe

Suspicious use of AdjustPrivilegeToken 37 IoCs

description	pid	Process
Token: SeShutdownPrivilege	448	msiexec.exe
Token: SeIncreaseQuotaPrivilege	448	msiexec.exe
Token: SeSecurityPrivilege	2944	msiexec.exe
Token: SeCreateTokenPrivilege	448	msiexec.exe
Token: SeAssignPrimaryTokenPrivilege	448	msiexec.exe
Token: SeLockMemoryPrivilege	448	msiexec.exe
Token: SeIncreaseQuotaPrivilege	448	msiexec.exe
Token: SeMachineAccountPrivilege	448	msiexec.exe
Token: SeTcbPrivilege	448	msiexec.exe
Token: SeSecurityPrivilege	448	msiexec.exe
Token: SeTakeOwnershipPrivilege	448	msiexec.exe
Token: SeLoadDriverPrivilege	448	msiexec.exe
Token: SeSystemProfilePrivilege	448	msiexec.exe
Token: SeSystemtimePrivilege	448	msiexec.exe
Token: SeProfSingleProcessPrivilege	448	msiexec.exe
Token: SeIncBasePriorityPrivilege	448	msiexec.exe
Token: SeCreatePagefilePrivilege	448	msiexec.exe
Token: SeCreatePermanentPrivilege	448	msiexec.exe
Token: SeBackupPrivilege	448	msiexec.exe
Token: SeRestorePrivilege	448	msiexec.exe
Token: SeShutdownPrivilege	448	msiexec.exe
Token: SeDebugPrivilege	448	msiexec.exe
Token: SeAuditPrivilege	448	msiexec.exe
Token: SeSystemEnvironmentPrivilege	448	msiexec.exe
Token: SeChangeNotifyPrivilege	448	msiexec.exe
Token: SeRemoteShutdownPrivilege	448	msiexec.exe
Token: SeUndockPrivilege	448	msiexec.exe
Token: SeSyncAgentPrivilege	448	msiexec.exe
Token: SeEnableDelegationPrivilege	448	msiexec.exe
Token: SeManageVolumePrivilege	448	msiexec.exe
Token: SeImpersonatePrivilege	448	msiexec.exe
Token: SeCreateGlobalPrivilege	448	msiexec.exe
Token: SeRestorePrivilege	2944	msiexec.exe
Token: SeTakeOwnershipPrivilege	2944	msiexec.exe
Token: SeRestorePrivilege	2944	msiexec.exe
Token: SeTakeOwnershipPrivilege	2944	msiexec.exe
Token: SeDebugPrivilege	2772	powershell.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 2908 wrote to memory of 448	2908	file_transfer_tools.exe	87
PID 2908 wrote to memory of 448	2908	file_transfer_tools.exe	87
PID 2944 wrote to memory of 2508	2944	msiexec.exe	94
PID 2944 wrote to memory of 2508	2944	msiexec.exe	94
PID 2944 wrote to memory of 2508	2944	msiexec.exe	94
PID 2508 wrote to memory of 3928	2508	MsiExec.exe	98
PID 2508 wrote to memory of 3928	2508	MsiExec.exe	98
PID 2508 wrote to memory of 3928	2508	MsiExec.exe	98
PID 2508 wrote to memory of 1720	2508	MsiExec.exe	100
PID 2508 wrote to memory of 1720	2508	MsiExec.exe	100
PID 2508 wrote to memory of 1720	2508	MsiExec.exe	100
PID 2508 wrote to memory of 2856	2508	MsiExec.exe	103
PID 2508 wrote to memory of 2856	2508	MsiExec.exe	103
PID 2508 wrote to memory of 2856	2508	MsiExec.exe	103
PID 2856 wrote to memory of 4536	2856	setup.exe	106
PID 2856 wrote to memory of 4536	2856	setup.exe	106
PID 2856 wrote to memory of 4536	2856	setup.exe	106
PID 2856 wrote to memory of 2772	2856	setup.exe	111
PID 2856 wrote to memory of 2772	2856	setup.exe	111
PID 2856 wrote to memory of 2772	2856	setup.exe	111

C:\Users\Admin\AppData\Local\Temp\file_transfer_tools.exe
"C:\Users\Admin\AppData\Local\Temp\file_transfer_tools.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2908
- C:\Windows\SYSTEM32\msiexec.exe
  msiexec.exe /i "C:\Users\Admin\AppData\Local\Microsoft\Windows\windrv.msi" /Qn
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:448

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:2944
- C:\Windows\syswow64\MsiExec.exe
  C:\Windows\syswow64\MsiExec.exe -Embedding A1CFD7558EAF674C496F578BB7C3ED12
  2⤵
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:2508
- - C:\Windows\SysWOW64\ICACLS.EXE
    "C:\Windows\system32\ICACLS.EXE" "C:\Users\Admin\AppData\Local\Temp\MW-4507836d-34ea-450c-887a-cc17ee5f6e05\." /SETINTEGRITYLEVEL (CI)(OI)HIGH
    3⤵
    - Modifies file permissions
    PID:3928
- - C:\Windows\SysWOW64\EXPAND.EXE
    "C:\Windows\system32\EXPAND.EXE" -R files.cab -F:* files
    3⤵
    - Drops file in Windows directory
    PID:1720
- - C:\Users\Admin\AppData\Local\Temp\MW-4507836d-34ea-450c-887a-cc17ee5f6e05\files\setup.exe
    "C:\Users\Admin\AppData\Local\Temp\MW-4507836d-34ea-450c-887a-cc17ee5f6e05\files\setup.exe" /VERYSILENT /VERYSILENT
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:2856
  - - C:\Windows\SysWOW64\systeminfo.exe
      systeminfo
      4⤵
      Gathers system information
      PID:4536
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell Add-MpPreference -ExclusionPath "$env:LOCALAPPDATA\Microsoft\windows\systemtask.exe"
      4⤵
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:2772

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

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

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Downloads

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

Filesize
3.8MB

MD5
7896667f54fe3e6e0d275104d878fec1

SHA1
e1ba924eabb739d33036e76bb7355f8e2f5742bd

SHA256
6293a90db282d0b5f36a46903cf184ab3bf25e99c2b24042a84b7aebcdf08c3b

SHA512
7784e9cc1fa115e2026a67fe5734db22d81f35bfb3cc2f86048cbf45e2cdea9bef70aebe70ffaf8c09b729afdc7b786e2e2647c5b82551b77166af4c334ff7e3

Download Submit
C:\Users\Admin\AppData\Local\Temp\MW-4507836d-34ea-450c-887a-cc17ee5f6e05\files.cab

Filesize
3.5MB

MD5
8d210cf5a4958e5b408d9416f2582661

SHA1
6c292799e29293a2233b3bea9e8c22734636426f

SHA256
37e0ec91d08372051edd9c3da83a689f6551b6fc2a50bd08429065d3c8ed3e0b

SHA512
7b8afcdd99d5e871afa54fb375606ecc9c693d19ace084c2121f3ae50551e102314641edaeb11331caa7a244cf40067249ffa2f71f27e040aa92874ff174b812

Download Submit
C:\Users\Admin\AppData\Local\Temp\MW-4507836d-34ea-450c-887a-cc17ee5f6e05\files\setup.exe

Filesize
354.2MB

MD5
9b25254c4e427d0946e6c3b57758bc9d

SHA1
9051ea055e4306e29df34263bee2ed5bfe104073

SHA256
2e69b2ba6310cb4ce3ddafc169c5ddcf8ec881186dc565227976bc29863fd0e9

SHA512
53ca94eff3e68a629d1125f3a9117ff2a181ce37b91b9a1f6f5cc814676a072e9ad52febff7cbdd3646e310162d65c96d244d1a253a279e0a216fc0f12b3971e

Download Submit
C:\Users\Admin\AppData\Local\Temp\MW-4507836d-34ea-450c-887a-cc17ee5f6e05\msiwrapper.ini

Filesize
342B

MD5
503dbdcdc9e573d16f55813b59ece1de

SHA1
38903b7193558334282fd23d9be86b32ebd513a1

SHA256
4a9167526da5a5e45e3f3c39e28ca77113b79ee1895a94cfeeec3a19cd298e75

SHA512
204e115269eb60501ab792dd392a716bbfa105cacf23c62f235ce727004ae46d797de82d1d5922788c130be1d96ff0337bc7af8146e5c6e067f9d99099b02406

Download Submit
C:\Users\Admin\AppData\Local\Temp\MW-4507836d-34ea-450c-887a-cc17ee5f6e05\msiwrapper.ini

Filesize
1KB

MD5
3d627f406812eb1e46335176b62244a8

SHA1
6870be5a040cef27b48f40fdeaa17e6a4d1c8c85

SHA256
0c6ed0694c2f7efc5a530d6328046f04b00551497269d9972ef6fc6dfac358bb

SHA512
cdc2f01f7cdf6e3a3a5574b05efce311c231141670b625b14b953d222b6c346fd7ba777118a766a7de84c2ee7c6e85349defa5dccdf9d292362ad263541c37be

Download Submit
C:\Users\Admin\AppData\Local\Temp\MW-4507836d-34ea-450c-887a-cc17ee5f6e05\msiwrapper.ini

Filesize
1KB

MD5
53ebbf0b6da2793273f39b663d667731

SHA1
904a36cf2f13c28fc9eee61fad174b902e20a626

SHA256
f18c6a68be4222596259b0f53881dd7b1ea60895f9a3130aa0b3f3f62f116153

SHA512
d1e74b2896d605bdcf01ee555eb57e5c08f0bea0e2e2dc58f1b31f006a495af1f20342a9398bd733df9f1a44a46373ae332d0abb872f93de64ee978ddade6d90

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_42wzhuuz.55f.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Windows\Installer\MSI4428.tmp

Filesize
208KB

MD5
0c8921bbcc37c6efd34faf44cf3b0cb5

SHA1
dcfa71246157edcd09eecaf9d4c5e360b24b3e49

SHA256
fd622cf73ea951a6de631063aba856487d77745dd1500adca61902b8dde56fe1

SHA512
ed55443e20d40cca90596f0a0542fa5ab83fe0270399adfaafd172987fb813dfd44ec0da0a58c096af3641003f830341fe259ad5bce9823f238ae63b7e11e108

Download Submit
memory/2772-116-0x0000000006D90000-0x0000000006DAE000-memory.dmp

Filesize
120KB

Download
memory/2772-103-0x0000000006820000-0x000000000686C000-memory.dmp

Filesize
304KB

Download
memory/2772-129-0x0000000071C60000-0x0000000072410000-memory.dmp

Filesize
7.7MB

Download
memory/2772-126-0x0000000007D80000-0x0000000007D88000-memory.dmp

Filesize
32KB

Download
memory/2772-85-0x0000000071C60000-0x0000000072410000-memory.dmp

Filesize
7.7MB

Download
memory/2772-84-0x0000000005200000-0x0000000005236000-memory.dmp

Filesize
216KB

Download
memory/2772-86-0x0000000005340000-0x0000000005350000-memory.dmp

Filesize
64KB

Download
memory/2772-87-0x0000000005340000-0x0000000005350000-memory.dmp

Filesize
64KB

Download
memory/2772-88-0x0000000005980000-0x0000000005FA8000-memory.dmp

Filesize
6.2MB

Download
memory/2772-89-0x0000000005950000-0x0000000005972000-memory.dmp

Filesize
136KB

Download
memory/2772-125-0x0000000007D90000-0x0000000007DAA000-memory.dmp

Filesize
104KB

Download
memory/2772-90-0x0000000006110000-0x0000000006176000-memory.dmp

Filesize
408KB

Download
memory/2772-100-0x00000000062F0000-0x0000000006356000-memory.dmp

Filesize
408KB

Download
memory/2772-101-0x0000000006360000-0x00000000066B4000-memory.dmp

Filesize
3.3MB

Download
memory/2772-102-0x00000000067F0000-0x000000000680E000-memory.dmp

Filesize
120KB

Download
memory/2772-124-0x0000000007D50000-0x0000000007D64000-memory.dmp

Filesize
80KB

Download
memory/2772-104-0x0000000005340000-0x0000000005350000-memory.dmp

Filesize
64KB

Download
memory/2772-105-0x0000000006DB0000-0x0000000006DE2000-memory.dmp

Filesize
200KB

Download
memory/2772-106-0x000000006E590000-0x000000006E5DC000-memory.dmp

Filesize
304KB

Download
memory/2772-123-0x0000000007D40000-0x0000000007D4E000-memory.dmp

Filesize
56KB

Download
memory/2772-117-0x00000000077C0000-0x0000000007863000-memory.dmp

Filesize
652KB

Download
memory/2772-118-0x0000000008150000-0x00000000087CA000-memory.dmp

Filesize
6.5MB

Download
memory/2772-119-0x0000000007B10000-0x0000000007B2A000-memory.dmp

Filesize
104KB

Download
memory/2772-120-0x0000000007B80000-0x0000000007B8A000-memory.dmp

Filesize
40KB

Download
memory/2772-121-0x0000000007DD0000-0x0000000007E66000-memory.dmp

Filesize
600KB

Download
memory/2772-122-0x0000000007D00000-0x0000000007D11000-memory.dmp

Filesize
68KB

Download
memory/2856-67-0x0000000002220000-0x000000000229A000-memory.dmp

Filesize
488KB

Download
memory/2856-69-0x0000000002220000-0x000000000229A000-memory.dmp

Filesize
488KB

Download
memory/2856-68-0x0000000002220000-0x000000000229A000-memory.dmp

Filesize
488KB

Download
memory/2856-78-0x0000000002220000-0x000000000229A000-memory.dmp

Filesize
488KB

Download
memory/2856-71-0x0000000010000000-0x000000001072E000-memory.dmp

Filesize
7.2MB

Download