stealc | 6a215ea22e985683e232334a3b8518d91c4355f686c157bdec99c2f7d87645fd

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
09-05-2024 10:09

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Report Analysis Logs

General

Target

6a215ea22e985683e232334a3b8518d91c4355f686c157bdec99c2f7d87645fd.exe
Size

382KB
MD5

00e81116ae5db5442e3059a4752ee035
SHA1

805977bc2c66817ea08309b06af3653a81294754
SHA256

6a215ea22e985683e232334a3b8518d91c4355f686c157bdec99c2f7d87645fd
SHA512

4c5596618ce8a1fb8b282d60c3ed2236f4f33834b800f29d195730fbbf3230cea5c25413712b6ef725281894ddaf92a0e9a61f1b8199facbabb4379bffe381b2
SSDEEP

6144:L0NTKE3CDWHhQgoFZHaJtrzQr792AiXQvdUodm7iKMceJK2v:L0NGMCaXoFdAFzQrJviXq3w7IJK2v

Score

10^/10

stealc zgrat discovery rat spyware stealer

Malware Config

Extracted

Family

stealc

http://185.172.128.150

Attributes

url_path
/c698e1bc8a2f5e6d.php

Signatures

Detect ZGRat V1 3 IoCs

resource	yara_rule
behavioral1/memory/1156-83-0x0000012F4B930000-0x0000012F4F164000-memory.dmp	family_zgrat_v1
behavioral1/memory/1156-88-0x0000012F50F30000-0x0000012F50F54000-memory.dmp	family_zgrat_v1
behavioral1/memory/1156-84-0x0000012F6A910000-0x0000012F6AA1A000-memory.dmp	family_zgrat_v1

Stealc
Stealc is an infostealer written in C++.
stealer stealc
ZGRat
ZGRat is remote access trojan written in C#.
rat zgrat
Downloads MZ/PE file

Checks computer location settings 2 TTPs 3 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000\Control Panel\International\Geo\Nation	6a215ea22e985683e232334a3b8518d91c4355f686c157bdec99c2f7d87645fd.exe
Key value queried	\REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000\Control Panel\International\Geo\Nation	u3g8.0.exe
Key value queried	\REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000\Control Panel\International\Geo\Nation	u3g8.1.exe

Executes dropped EXE 2 IoCs

pid	Process
4672	u3g8.0.exe
3964	u3g8.1.exe

Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
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
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 2 IoCs

pid	pid_target	Process	procid_target
4936	4672	WerFault.exe	90
4848	4472	WerFault.exe	81

Checks SCSI registry key(s) 3 TTPs 3 IoCs

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

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	u3g8.1.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	u3g8.1.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	u3g8.1.exe

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	u3g8.0.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	u3g8.0.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
3628	timeout.exe

Suspicious behavior: EnumeratesProcesses 25 IoCs

pid	Process
4672	u3g8.0.exe
4672	u3g8.0.exe
1156	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1156	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1156	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1156	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1156	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1156	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1156	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1156	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1156	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1156	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1156	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1156	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1156	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1156	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1156	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1156	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1156	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1156	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1156	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1156	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1156	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1156	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1156	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1156	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe

Suspicious use of FindShellTrayWindow 7 IoCs

pid	Process
3964	u3g8.1.exe
3964	u3g8.1.exe
3964	u3g8.1.exe
3964	u3g8.1.exe
3964	u3g8.1.exe
3964	u3g8.1.exe
3964	u3g8.1.exe

Suspicious use of SendNotifyMessage 7 IoCs

pid	Process
3964	u3g8.1.exe
3964	u3g8.1.exe
3964	u3g8.1.exe
3964	u3g8.1.exe
3964	u3g8.1.exe
3964	u3g8.1.exe
3964	u3g8.1.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 4472 wrote to memory of 4672	4472	6a215ea22e985683e232334a3b8518d91c4355f686c157bdec99c2f7d87645fd.exe	90
PID 4472 wrote to memory of 4672	4472	6a215ea22e985683e232334a3b8518d91c4355f686c157bdec99c2f7d87645fd.exe	90
PID 4472 wrote to memory of 4672	4472	6a215ea22e985683e232334a3b8518d91c4355f686c157bdec99c2f7d87645fd.exe	90
PID 4672 wrote to memory of 2044	4672	u3g8.0.exe	95
PID 4672 wrote to memory of 2044	4672	u3g8.0.exe	95
PID 4672 wrote to memory of 2044	4672	u3g8.0.exe	95
PID 4472 wrote to memory of 3964	4472	6a215ea22e985683e232334a3b8518d91c4355f686c157bdec99c2f7d87645fd.exe	94
PID 4472 wrote to memory of 3964	4472	6a215ea22e985683e232334a3b8518d91c4355f686c157bdec99c2f7d87645fd.exe	94
PID 4472 wrote to memory of 3964	4472	6a215ea22e985683e232334a3b8518d91c4355f686c157bdec99c2f7d87645fd.exe	94
PID 2044 wrote to memory of 3628	2044	cmd.exe	100
PID 2044 wrote to memory of 3628	2044	cmd.exe	100
PID 2044 wrote to memory of 3628	2044	cmd.exe	100
PID 3964 wrote to memory of 1156	3964	u3g8.1.exe	107
PID 3964 wrote to memory of 1156	3964	u3g8.1.exe	107

C:\Users\Admin\AppData\Local\Temp\6a215ea22e985683e232334a3b8518d91c4355f686c157bdec99c2f7d87645fd.exe
"C:\Users\Admin\AppData\Local\Temp\6a215ea22e985683e232334a3b8518d91c4355f686c157bdec99c2f7d87645fd.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4472
- C:\Users\Admin\AppData\Local\Temp\u3g8.0.exe
  "C:\Users\Admin\AppData\Local\Temp\u3g8.0.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:4672
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe" /c timeout /t 5 & del /f /q "C:\Users\Admin\AppData\Local\Temp\u3g8.0.exe" & del "C:\ProgramData\*.dll"" & exit
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2044
  - - C:\Windows\SysWOW64\timeout.exe
      timeout /t 5
      4⤵
      Delays execution with timeout.exe
      PID:3628
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4672 -s 1444
    3⤵
    - Program crash
    PID:4936
- C:\Users\Admin\AppData\Local\Temp\u3g8.1.exe
  "C:\Users\Admin\AppData\Local\Temp\u3g8.1.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - Checks SCSI registry key(s)
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:3964
- - C:\Users\Admin\AppData\Local\Temp\iolo\dm\SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
    "C:\Users\Admin\AppData\Local\Temp\iolo\dm\SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe" /eieci=11A12794-499E-4FA0-A281-A9A9AA8B2685 /eipi=5488CB36-BE62-4606-B07B-2EE938868BD1
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1156
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4472 -s 968
  2⤵
  - Program crash
  PID:4848

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 4672 -ip 4672
1⤵
PID:996

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 496 -p 4472 -ip 4472
1⤵
PID:1452

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

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\Temp\u3g8.0.exe

Filesize
240KB

MD5
a5a396650cc1831759ee447062d4593a

SHA1
37bd8f9b348b16378ea9023489243b8725addf82

SHA256
a1f50375231c83613bd18aee62fdeccb52c06445d1eebf5fc7293246746f24a5

SHA512
a3063b2168164df6fd19cec76c7f07f30c4dae3fa5c00b7efb9c3005edbf564705701adbba575280373c916cf31e6450b246d6046de5ca384897d2751ffc2d4c

Download Submit
C:\Users\Admin\AppData\Local\Temp\u3g8.1.exe

Filesize
4.6MB

MD5
397926927bca55be4a77839b1c44de6e

SHA1
e10f3434ef3021c399dbba047832f02b3c898dbd

SHA256
4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

SHA512
cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

Download Submit
memory/1156-103-0x0000012F6EF50000-0x0000012F6EF58000-memory.dmp

Filesize
32KB

Download
memory/1156-111-0x0000012F6FF50000-0x0000012F6FFC6000-memory.dmp

Filesize
472KB

Download
memory/1156-112-0x0000012F6FEB0000-0x0000012F6FECE000-memory.dmp

Filesize
120KB

Download
memory/1156-84-0x0000012F6A910000-0x0000012F6AA1A000-memory.dmp

Filesize
1.0MB

Download
memory/1156-101-0x0000012F6EF60000-0x0000012F6EF98000-memory.dmp

Filesize
224KB

Download
memory/1156-102-0x0000012F6EF30000-0x0000012F6EF3E000-memory.dmp

Filesize
56KB

Download
memory/1156-104-0x0000012F700D0000-0x0000012F700DA000-memory.dmp

Filesize
40KB

Download
memory/1156-110-0x0000012F6FE70000-0x0000012F6FE7C000-memory.dmp

Filesize
48KB

Download
memory/1156-85-0x0000012F4F560000-0x0000012F4F570000-memory.dmp

Filesize
64KB

Download
memory/1156-107-0x0000012F70680000-0x0000012F70BA8000-memory.dmp

Filesize
5.2MB

Download
memory/1156-105-0x0000012F700F0000-0x0000012F70152000-memory.dmp

Filesize
392KB

Download
memory/1156-106-0x0000012F6FE50000-0x0000012F6FE72000-memory.dmp

Filesize
136KB

Download
memory/1156-92-0x0000012F6ABB0000-0x0000012F6AC00000-memory.dmp

Filesize
320KB

Download
memory/1156-89-0x0000012F6A570000-0x0000012F6A57A000-memory.dmp

Filesize
40KB

Download
memory/1156-83-0x0000012F4B930000-0x0000012F4F164000-memory.dmp

Filesize
56.2MB

Download
memory/1156-86-0x0000012F50F20000-0x0000012F50F2C000-memory.dmp

Filesize
48KB

Download
memory/1156-87-0x0000012F50F10000-0x0000012F50F24000-memory.dmp

Filesize
80KB

Download
memory/1156-88-0x0000012F50F30000-0x0000012F50F54000-memory.dmp

Filesize
144KB

Download
memory/1156-100-0x0000012F6F620000-0x0000012F6F628000-memory.dmp

Filesize
32KB

Download
memory/1156-98-0x0000012F6AC30000-0x0000012F6AF30000-memory.dmp

Filesize
3.0MB

Download
memory/1156-94-0x0000012F6A580000-0x0000012F6A58A000-memory.dmp

Filesize
40KB

Download
memory/1156-93-0x0000012F6AC00000-0x0000012F6AC22000-memory.dmp

Filesize
136KB

Download
memory/1156-91-0x0000012F6A750000-0x0000012F6A802000-memory.dmp

Filesize
712KB

Download
memory/1156-90-0x0000012F6A6E0000-0x0000012F6A70A000-memory.dmp

Filesize
168KB

Download
memory/3964-82-0x0000000000400000-0x00000000008AD000-memory.dmp

Filesize
4.7MB

Download
memory/3964-70-0x0000000000400000-0x00000000008AD000-memory.dmp

Filesize
4.7MB

Download
memory/4472-1-0x0000000002C90000-0x0000000002D90000-memory.dmp

Filesize
1024KB

Download
memory/4472-50-0x0000000000400000-0x000000000046F000-memory.dmp

Filesize
444KB

Download
memory/4472-3-0x0000000000400000-0x000000000046F000-memory.dmp

Filesize
444KB

Download
memory/4472-48-0x0000000000400000-0x0000000002B1D000-memory.dmp

Filesize
39.1MB

Download
memory/4472-49-0x0000000002BF0000-0x0000000002C5C000-memory.dmp

Filesize
432KB

Download
memory/4472-2-0x0000000002BF0000-0x0000000002C5C000-memory.dmp

Filesize
432KB

Download
memory/4472-16-0x0000000000400000-0x0000000002B1D000-memory.dmp

Filesize
39.1MB

Download
memory/4672-47-0x0000000000400000-0x0000000002AF9000-memory.dmp

Filesize
39.0MB

Download
memory/4672-20-0x0000000061E00000-0x0000000061EF3000-memory.dmp

Filesize
972KB

Download
memory/4672-19-0x0000000000400000-0x0000000002AF9000-memory.dmp

Filesize
39.0MB

Download
memory/4672-18-0x0000000000400000-0x0000000002AF9000-memory.dmp

Filesize
39.0MB

Download
memory/4672-17-0x0000000000400000-0x0000000002AF9000-memory.dmp

Filesize
39.0MB

Download