metastealer | b5c4acf55126207efb15b26683b7c0817b32717bb497622999413e54d26f04ce

General

Target

b5c4acf55126207efb15b26683b7c0817b32717bb4976.exe
Size

634KB
MD5

e8a57951fb4a981c29177e678a4d69e0
SHA1

9f088792cb02b9f31b57fe7a82f1a34e49c4c376
SHA256

b5c4acf55126207efb15b26683b7c0817b32717bb497622999413e54d26f04ce
SHA512

d62e6a4f5ca2addd81973002bc664b80dab664b444810110fba9062c20f77f68620d84dbacc30678bf25d85e6364aea7c1e63569225587d704f8631958fecc5a

Score

10^/10

metastealer discovery spyware stealer

Malware Config

Signatures

Meta Stealer Stealer
Meta Stealer steals passwords stored in browsers, written in C++.
stealer metastealer
Downloads MZ/PE file

Executes dropped EXE 1 IoCs

pid	Process
808	strongix.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
T1081
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials in Files
T1081
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012
Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4940	808	WerFault.exe	79

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	b5c4acf55126207efb15b26683b7c0817b32717bb4976.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	b5c4acf55126207efb15b26683b7c0817b32717bb4976.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
808	strongix.exe
808	strongix.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	808	strongix.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4804 wrote to memory of 808	4804	b5c4acf55126207efb15b26683b7c0817b32717bb4976.exe	79
PID 4804 wrote to memory of 808	4804	b5c4acf55126207efb15b26683b7c0817b32717bb4976.exe	79
PID 4804 wrote to memory of 808	4804	b5c4acf55126207efb15b26683b7c0817b32717bb4976.exe	79

C:\Users\Admin\AppData\Local\Temp\b5c4acf55126207efb15b26683b7c0817b32717bb4976.exe
"C:\Users\Admin\AppData\Local\Temp\b5c4acf55126207efb15b26683b7c0817b32717bb4976.exe"
1⤵
- Checks processor information in registry
- Suspicious use of WriteProcessMemory
PID:4804
- C:\Users\Admin\AppData\Roaming\shftool\strongix.exe
  strongix.exe
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:808
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 808 -s 1344
    3⤵
    - Program crash
    PID:4940

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 808 -ip 808
1⤵
PID:4672

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Web Service

1

T1102

Credential Access

Credentials in Files

2

T1081

Discovery

Query Registry

2

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

2

T1005

Command and Control

Web Service

1

T1102

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\shftool\strongix.exe

Filesize
369KB

MD5
6fe9416809f5da05b48bf86e1375e7be

SHA1
44ec2fa73a3e5ad6de01605815efedd324d2efca

SHA256
7607c9b4b1a6625acab3d15d65ab98dbc5dfa5a96c38cc83837354364ca50ce4

SHA512
4d9a44b8ed59b862cad26457f052dc26edf7842671fad6a824bc43179b672c5bdad4e25e0b67f2fc7872221a5ac9f7d78264387e3fadf12479fc06e1b4e5a35e

Download Submit
C:\Users\Admin\AppData\Roaming\shftool\strongix.exe

Filesize
369KB

MD5
6fe9416809f5da05b48bf86e1375e7be

SHA1
44ec2fa73a3e5ad6de01605815efedd324d2efca

SHA256
7607c9b4b1a6625acab3d15d65ab98dbc5dfa5a96c38cc83837354364ca50ce4

SHA512
4d9a44b8ed59b862cad26457f052dc26edf7842671fad6a824bc43179b672c5bdad4e25e0b67f2fc7872221a5ac9f7d78264387e3fadf12479fc06e1b4e5a35e

Download Submit
memory/808-140-0x0000000000720000-0x0000000000757000-memory.dmp

Filesize
220KB

Download
memory/808-143-0x0000000005880000-0x0000000005892000-memory.dmp

Filesize
72KB

Download
memory/808-152-0x0000000006A40000-0x0000000006F6C000-memory.dmp

Filesize
5.2MB

Download
memory/808-151-0x0000000006830000-0x00000000069F2000-memory.dmp

Filesize
1.8MB

Download
memory/808-137-0x0000000000793000-0x00000000007BD000-memory.dmp

Filesize
168KB

Download
memory/808-138-0x0000000004B30000-0x00000000050D4000-memory.dmp

Filesize
5.6MB

Download
memory/808-139-0x0000000000793000-0x00000000007BD000-memory.dmp

Filesize
168KB

Download
memory/808-150-0x0000000006770000-0x000000000678E000-memory.dmp

Filesize
120KB

Download
memory/808-141-0x0000000000400000-0x0000000000484000-memory.dmp

Filesize
528KB

Download
memory/808-142-0x0000000005220000-0x0000000005838000-memory.dmp

Filesize
6.1MB

Download
memory/808-149-0x0000000006580000-0x0000000006612000-memory.dmp

Filesize
584KB

Download
memory/808-144-0x00000000058A0000-0x00000000059AA000-memory.dmp

Filesize
1.0MB

Download
memory/808-145-0x00000000059D0000-0x0000000005A0C000-memory.dmp

Filesize
240KB

Download
memory/808-146-0x0000000004B24000-0x0000000004B26000-memory.dmp

Filesize
8KB

Download
memory/808-147-0x0000000005CE0000-0x0000000005D46000-memory.dmp

Filesize
408KB

Download
memory/808-148-0x00000000064A0000-0x0000000006516000-memory.dmp

Filesize
472KB

Download
memory/4804-133-0x0000000000400000-0x00000000004D4000-memory.dmp

Filesize
848KB

Download
memory/4804-130-0x00000000005D4000-0x0000000000640000-memory.dmp

Filesize
432KB

Download
memory/4804-131-0x00000000005D4000-0x0000000000640000-memory.dmp

Filesize
432KB

Download
memory/4804-132-0x00000000007A0000-0x000000000086E000-memory.dmp

Filesize
824KB

Download

Analysis

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