metastealer | aeac583de2f996861e6a523c6759e9bebb3111d77d98277c207c5448cb8d0da6

Analysis

max time kernel
121s
max time network
122s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-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
behavioral1/memory/1552-72-0x0000000010000000-0x000000001072E000-memory.dmp	family_metastealer

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
2564	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)	\??\T:	msiexec.exe
File opened (read-only)	\??\V:	msiexec.exe
File opened (read-only)	\??\W:	msiexec.exe
File opened (read-only)	\??\B:	msiexec.exe
File opened (read-only)	\??\K:	msiexec.exe
File opened (read-only)	\??\Q:	msiexec.exe
File opened (read-only)	\??\R:	msiexec.exe
File opened (read-only)	\??\S:	msiexec.exe
File opened (read-only)	\??\Z:	msiexec.exe
File opened (read-only)	\??\A:	msiexec.exe
File opened (read-only)	\??\O:	msiexec.exe
File opened (read-only)	\??\P:	msiexec.exe
File opened (read-only)	\??\U:	msiexec.exe
File opened (read-only)	\??\X:	msiexec.exe
File opened (read-only)	\??\E:	msiexec.exe
File opened (read-only)	\??\J:	msiexec.exe
File opened (read-only)	\??\M:	msiexec.exe
File opened (read-only)	\??\N:	msiexec.exe
File opened (read-only)	\??\G:	msiexec.exe
File opened (read-only)	\??\H:	msiexec.exe
File opened (read-only)	\??\I:	msiexec.exe
File opened (read-only)	\??\L:	msiexec.exe
File opened (read-only)	\??\Y:	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\f761564.msi	msiexec.exe
File opened for modification	C:\Windows\Installer\f761564.msi	msiexec.exe
File created	C:\Windows\Installer\f761567.ipi	msiexec.exe
File opened for modification	C:\Windows\Installer\	msiexec.exe
File opened for modification	C:\Windows\Installer\MSI169C.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

Executes dropped EXE 1 IoCs

pid	Process
1552	setup.exe

Loads dropped DLL 4 IoCs

pid	Process
2768	MsiExec.exe
2768	MsiExec.exe
2768	MsiExec.exe
2768	MsiExec.exe

Gathers system information 1 TTPs 1 IoCs

Runs systeminfo.exe.

System Information Discovery

T1082

pid	Process
632	systeminfo.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
2648	msiexec.exe
2648	msiexec.exe
1552	setup.exe
1552	setup.exe
1552	setup.exe
1552	setup.exe
1552	setup.exe
1552	setup.exe
336	powershell.exe

Suspicious use of AdjustPrivilegeToken 39 IoCs

description	pid	Process
Token: SeShutdownPrivilege	2916	msiexec.exe
Token: SeIncreaseQuotaPrivilege	2916	msiexec.exe
Token: SeRestorePrivilege	2648	msiexec.exe
Token: SeTakeOwnershipPrivilege	2648	msiexec.exe
Token: SeSecurityPrivilege	2648	msiexec.exe
Token: SeCreateTokenPrivilege	2916	msiexec.exe
Token: SeAssignPrimaryTokenPrivilege	2916	msiexec.exe
Token: SeLockMemoryPrivilege	2916	msiexec.exe
Token: SeIncreaseQuotaPrivilege	2916	msiexec.exe
Token: SeMachineAccountPrivilege	2916	msiexec.exe
Token: SeTcbPrivilege	2916	msiexec.exe
Token: SeSecurityPrivilege	2916	msiexec.exe
Token: SeTakeOwnershipPrivilege	2916	msiexec.exe
Token: SeLoadDriverPrivilege	2916	msiexec.exe
Token: SeSystemProfilePrivilege	2916	msiexec.exe
Token: SeSystemtimePrivilege	2916	msiexec.exe
Token: SeProfSingleProcessPrivilege	2916	msiexec.exe
Token: SeIncBasePriorityPrivilege	2916	msiexec.exe
Token: SeCreatePagefilePrivilege	2916	msiexec.exe
Token: SeCreatePermanentPrivilege	2916	msiexec.exe
Token: SeBackupPrivilege	2916	msiexec.exe
Token: SeRestorePrivilege	2916	msiexec.exe
Token: SeShutdownPrivilege	2916	msiexec.exe
Token: SeDebugPrivilege	2916	msiexec.exe
Token: SeAuditPrivilege	2916	msiexec.exe
Token: SeSystemEnvironmentPrivilege	2916	msiexec.exe
Token: SeChangeNotifyPrivilege	2916	msiexec.exe
Token: SeRemoteShutdownPrivilege	2916	msiexec.exe
Token: SeUndockPrivilege	2916	msiexec.exe
Token: SeSyncAgentPrivilege	2916	msiexec.exe
Token: SeEnableDelegationPrivilege	2916	msiexec.exe
Token: SeManageVolumePrivilege	2916	msiexec.exe
Token: SeImpersonatePrivilege	2916	msiexec.exe
Token: SeCreateGlobalPrivilege	2916	msiexec.exe
Token: SeRestorePrivilege	2648	msiexec.exe
Token: SeTakeOwnershipPrivilege	2648	msiexec.exe
Token: SeRestorePrivilege	2648	msiexec.exe
Token: SeTakeOwnershipPrivilege	2648	msiexec.exe
Token: SeDebugPrivilege	336	powershell.exe

Suspicious use of WriteProcessMemory 35 IoCs

description	pid	Process	procid_target
PID 1772 wrote to memory of 2916	1772	file_transfer_tools.exe	28
PID 1772 wrote to memory of 2916	1772	file_transfer_tools.exe	28
PID 1772 wrote to memory of 2916	1772	file_transfer_tools.exe	28
PID 1772 wrote to memory of 2916	1772	file_transfer_tools.exe	28
PID 1772 wrote to memory of 2916	1772	file_transfer_tools.exe	28
PID 2648 wrote to memory of 2768	2648	msiexec.exe	30
PID 2648 wrote to memory of 2768	2648	msiexec.exe	30
PID 2648 wrote to memory of 2768	2648	msiexec.exe	30
PID 2648 wrote to memory of 2768	2648	msiexec.exe	30
PID 2648 wrote to memory of 2768	2648	msiexec.exe	30
PID 2648 wrote to memory of 2768	2648	msiexec.exe	30
PID 2648 wrote to memory of 2768	2648	msiexec.exe	30
PID 2768 wrote to memory of 2564	2768	MsiExec.exe	31
PID 2768 wrote to memory of 2564	2768	MsiExec.exe	31
PID 2768 wrote to memory of 2564	2768	MsiExec.exe	31
PID 2768 wrote to memory of 2564	2768	MsiExec.exe	31
PID 2768 wrote to memory of 2116	2768	MsiExec.exe	33
PID 2768 wrote to memory of 2116	2768	MsiExec.exe	33
PID 2768 wrote to memory of 2116	2768	MsiExec.exe	33
PID 2768 wrote to memory of 2116	2768	MsiExec.exe	33
PID 2768 wrote to memory of 1552	2768	MsiExec.exe	35
PID 2768 wrote to memory of 1552	2768	MsiExec.exe	35
PID 2768 wrote to memory of 1552	2768	MsiExec.exe	35
PID 2768 wrote to memory of 1552	2768	MsiExec.exe	35
PID 2768 wrote to memory of 1552	2768	MsiExec.exe	35
PID 2768 wrote to memory of 1552	2768	MsiExec.exe	35
PID 2768 wrote to memory of 1552	2768	MsiExec.exe	35
PID 1552 wrote to memory of 632	1552	setup.exe	38
PID 1552 wrote to memory of 632	1552	setup.exe	38
PID 1552 wrote to memory of 632	1552	setup.exe	38
PID 1552 wrote to memory of 632	1552	setup.exe	38
PID 1552 wrote to memory of 336	1552	setup.exe	42
PID 1552 wrote to memory of 336	1552	setup.exe	42
PID 1552 wrote to memory of 336	1552	setup.exe	42
PID 1552 wrote to memory of 336	1552	setup.exe	42

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:1772
- C:\Windows\system32\msiexec.exe
  msiexec.exe /i "C:\Users\Admin\AppData\Local\Microsoft\Windows\windrv.msi" /Qn
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2916

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:2648
- C:\Windows\syswow64\MsiExec.exe
  C:\Windows\syswow64\MsiExec.exe -Embedding 56D0850E81A5AA128ED9F3E9C1DFFCFC
  2⤵
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:2768
- - C:\Windows\SysWOW64\ICACLS.EXE
    "C:\Windows\system32\ICACLS.EXE" "C:\Users\Admin\AppData\Local\Temp\MW-7a345e6c-527e-494b-991d-b4aaf3af9e04\." /SETINTEGRITYLEVEL (CI)(OI)HIGH
    3⤵
    - Modifies file permissions
    PID:2564
- - C:\Windows\SysWOW64\EXPAND.EXE
    "C:\Windows\system32\EXPAND.EXE" -R files.cab -F:* files
    3⤵
    - Drops file in Windows directory
    PID:2116
- - C:\Users\Admin\AppData\Local\Temp\MW-7a345e6c-527e-494b-991d-b4aaf3af9e04\files\setup.exe
    "C:\Users\Admin\AppData\Local\Temp\MW-7a345e6c-527e-494b-991d-b4aaf3af9e04\files\setup.exe" /VERYSILENT /VERYSILENT
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:1552
  - - C:\Windows\SysWOW64\systeminfo.exe
      systeminfo
      4⤵
      Gathers system information
      PID:632
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell Add-MpPreference -ExclusionPath "$env:LOCALAPPDATA\Microsoft\windows\systemtask.exe"
      4⤵
      Drops file in System32 directory
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:336

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-7a345e6c-527e-494b-991d-b4aaf3af9e04\files.cab

Filesize
3.5MB

MD5
8d210cf5a4958e5b408d9416f2582661

SHA1
6c292799e29293a2233b3bea9e8c22734636426f

SHA256
37e0ec91d08372051edd9c3da83a689f6551b6fc2a50bd08429065d3c8ed3e0b

SHA512
7b8afcdd99d5e871afa54fb375606ecc9c693d19ace084c2121f3ae50551e102314641edaeb11331caa7a244cf40067249ffa2f71f27e040aa92874ff174b812

Download Submit
C:\Users\Admin\AppData\Local\Temp\MW-7a345e6c-527e-494b-991d-b4aaf3af9e04\files\setup.exe

Filesize
354.2MB

MD5
9b25254c4e427d0946e6c3b57758bc9d

SHA1
9051ea055e4306e29df34263bee2ed5bfe104073

SHA256
2e69b2ba6310cb4ce3ddafc169c5ddcf8ec881186dc565227976bc29863fd0e9

SHA512
53ca94eff3e68a629d1125f3a9117ff2a181ce37b91b9a1f6f5cc814676a072e9ad52febff7cbdd3646e310162d65c96d244d1a253a279e0a216fc0f12b3971e

Download Submit
C:\Users\Admin\AppData\Local\Temp\MW-7a345e6c-527e-494b-991d-b4aaf3af9e04\msiwrapper.ini

Filesize
1KB

MD5
8e9a4cc1b3393243e34572401329cfc6

SHA1
2b5f1a12c404b7099cd886651cdeb916673857f7

SHA256
9280935667e87f8011edebabc20fcf3feaa1adbcbd42df103038d131f90f1bcf

SHA512
1dbc39db1731e5c3281ff68b31fea1d57301009c43d9edaaec6630280fdd8f732335b61898fc20c435161770e144e84fa7bb8f7de171389a2ae5113b5e34af39

Download Submit
C:\Windows\Installer\MSI169C.tmp

Filesize
208KB

MD5
0c8921bbcc37c6efd34faf44cf3b0cb5

SHA1
dcfa71246157edcd09eecaf9d4c5e360b24b3e49

SHA256
fd622cf73ea951a6de631063aba856487d77745dd1500adca61902b8dde56fe1

SHA512
ed55443e20d40cca90596f0a0542fa5ab83fe0270399adfaafd172987fb813dfd44ec0da0a58c096af3641003f830341fe259ad5bce9823f238ae63b7e11e108

Download Submit
memory/336-88-0x0000000002870000-0x00000000028B0000-memory.dmp

Filesize
256KB

Download
memory/336-85-0x0000000073850000-0x0000000073DFB000-memory.dmp

Filesize
5.7MB

Download
memory/336-86-0x0000000073850000-0x0000000073DFB000-memory.dmp

Filesize
5.7MB

Download
memory/336-87-0x0000000002870000-0x00000000028B0000-memory.dmp

Filesize
256KB

Download
memory/336-90-0x0000000073850000-0x0000000073DFB000-memory.dmp

Filesize
5.7MB

Download
memory/336-91-0x0000000002870000-0x00000000028B0000-memory.dmp

Filesize
256KB

Download
memory/336-92-0x0000000002870000-0x00000000028B0000-memory.dmp

Filesize
256KB

Download
memory/336-93-0x0000000002870000-0x00000000028B0000-memory.dmp

Filesize
256KB

Download
memory/1552-69-0x0000000000360000-0x00000000003DA000-memory.dmp

Filesize
488KB

Download
memory/1552-72-0x0000000010000000-0x000000001072E000-memory.dmp

Filesize
7.2MB

Download
memory/1552-84-0x0000000000360000-0x00000000003DA000-memory.dmp

Filesize
488KB

Download
memory/1552-67-0x0000000000360000-0x00000000003DA000-memory.dmp

Filesize
488KB

Download