stealc | ffb45f5dfa5697d83230cf9f2920bbd8e386b30ab0be1f8062091c45924f532e

Analysis

max time kernel
149s
max time network
152s
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 13:06

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

ffb45f5dfa5697d83230cf9f2920bbd8e386b30ab0be1f8062091c45924f532e.exe
Size

382KB
MD5

7fbbacf3295152cb0584a4e7d027b386
SHA1

a3d12d98a78394b24f5d1aeb0db7d3c5c5f1eb2c
SHA256

ffb45f5dfa5697d83230cf9f2920bbd8e386b30ab0be1f8062091c45924f532e
SHA512

5c64fd7145230fd622c7094d1570780cf1485303aabbb27d524e2811f92d8d43e81b351ec2cd789eea9b98e252186c3d61bd6f21a247f54a58c919c709f891d5
SSDEEP

6144:1jNHmrGVx/2m1f+eo864r+m4fSw3Axa3Uet46nBeJKtq:1jNGexJo8raXfS8Axa35t46nUJKtq

Score

10^/10

stealc zgrat discovery rat 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/2776-67-0x0000024D35630000-0x0000024D38E64000-memory.dmp	family_zgrat_v1
behavioral1/memory/2776-68-0x0000024D545F0000-0x0000024D546FA000-memory.dmp	family_zgrat_v1
behavioral1/memory/2776-72-0x0000024D53450000-0x0000024D53474000-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 2 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	ffb45f5dfa5697d83230cf9f2920bbd8e386b30ab0be1f8062091c45924f532e.exe
Key value queried	\REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000\Control Panel\International\Geo\Nation	ue8.1.exe

Executes dropped EXE 2 IoCs

pid	Process
3492	ue8.0.exe
4240	ue8.1.exe

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 1 IoCs

pid	pid_target	Process	procid_target
4892	512	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	ue8.1.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	ue8.1.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	ue8.1.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	ue8.0.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	ue8.0.exe

Suspicious behavior: EnumeratesProcesses 25 IoCs

pid	Process
2776	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
2776	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
2776	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
2776	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
2776	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
2776	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
2776	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
2776	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
2776	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
2776	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
2776	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
2776	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
2776	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
2776	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
2776	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
2776	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
2776	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
2776	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
2776	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
2776	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
2776	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
2776	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
2776	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3492	ue8.0.exe
3492	ue8.0.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2776	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe

Suspicious use of FindShellTrayWindow 7 IoCs

pid	Process
4240	ue8.1.exe
4240	ue8.1.exe
4240	ue8.1.exe
4240	ue8.1.exe
4240	ue8.1.exe
4240	ue8.1.exe
4240	ue8.1.exe

Suspicious use of SendNotifyMessage 7 IoCs

pid	Process
4240	ue8.1.exe
4240	ue8.1.exe
4240	ue8.1.exe
4240	ue8.1.exe
4240	ue8.1.exe
4240	ue8.1.exe
4240	ue8.1.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 512 wrote to memory of 3492	512	ffb45f5dfa5697d83230cf9f2920bbd8e386b30ab0be1f8062091c45924f532e.exe	92
PID 512 wrote to memory of 3492	512	ffb45f5dfa5697d83230cf9f2920bbd8e386b30ab0be1f8062091c45924f532e.exe	92
PID 512 wrote to memory of 3492	512	ffb45f5dfa5697d83230cf9f2920bbd8e386b30ab0be1f8062091c45924f532e.exe	92
PID 512 wrote to memory of 4240	512	ffb45f5dfa5697d83230cf9f2920bbd8e386b30ab0be1f8062091c45924f532e.exe	95
PID 512 wrote to memory of 4240	512	ffb45f5dfa5697d83230cf9f2920bbd8e386b30ab0be1f8062091c45924f532e.exe	95
PID 512 wrote to memory of 4240	512	ffb45f5dfa5697d83230cf9f2920bbd8e386b30ab0be1f8062091c45924f532e.exe	95
PID 4240 wrote to memory of 2776	4240	ue8.1.exe	101
PID 4240 wrote to memory of 2776	4240	ue8.1.exe	101

C:\Users\Admin\AppData\Local\Temp\ffb45f5dfa5697d83230cf9f2920bbd8e386b30ab0be1f8062091c45924f532e.exe
"C:\Users\Admin\AppData\Local\Temp\ffb45f5dfa5697d83230cf9f2920bbd8e386b30ab0be1f8062091c45924f532e.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:512
- C:\Users\Admin\AppData\Local\Temp\ue8.0.exe
  "C:\Users\Admin\AppData\Local\Temp\ue8.0.exe"
  2⤵
  - Executes dropped EXE
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  PID:3492
- C:\Users\Admin\AppData\Local\Temp\ue8.1.exe
  "C:\Users\Admin\AppData\Local\Temp\ue8.1.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:4240
- - 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:2776
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 512 -s 1524
  2⤵
  - Program crash
  PID:4892

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 512 -ip 512
1⤵
PID:1472

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\ue8.0.exe

Filesize
218KB

MD5
5246be38e251c182f838adf4ef42ad40

SHA1
fe09ba5ee40d4c4897c8f8e3fa819c13b0e324d9

SHA256
7dbf762b2ef2b651a4e8c7b7d9b8996a1de0cfa44119452f1d3f29bfe03dfd86

SHA512
a3f7c75a2355935d19c733d67aeff3e08f382ae60c1ba45364974ff91ca779ac5e49c40475fe35b8923a130e8670de0311fdf3c03de935312869e9a9a8b21b14

Download Submit
C:\Users\Admin\AppData\Local\Temp\ue8.1.exe

Filesize
4.6MB

MD5
397926927bca55be4a77839b1c44de6e

SHA1
e10f3434ef3021c399dbba047832f02b3c898dbd

SHA256
4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

SHA512
cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

Download Submit
memory/512-1-0x0000000002B20000-0x0000000002C20000-memory.dmp

Filesize
1024KB

Download
memory/512-3-0x0000000000400000-0x000000000046F000-memory.dmp

Filesize
444KB

Download
memory/512-2-0x0000000004770000-0x00000000047DC000-memory.dmp

Filesize
432KB

Download
memory/512-32-0x0000000000400000-0x000000000046F000-memory.dmp

Filesize
444KB

Download
memory/512-30-0x0000000000400000-0x0000000002B1D000-memory.dmp

Filesize
39.1MB

Download
memory/2776-89-0x0000024D59DF0000-0x0000024D59E52000-memory.dmp

Filesize
392KB

Download
memory/2776-78-0x0000024D53470000-0x0000024D5347A000-memory.dmp

Filesize
40KB

Download
memory/2776-96-0x0000024D59BB0000-0x0000024D59BCE000-memory.dmp

Filesize
120KB

Download
memory/2776-95-0x0000024D59C50000-0x0000024D59CC6000-memory.dmp

Filesize
472KB

Download
memory/2776-67-0x0000024D35630000-0x0000024D38E64000-memory.dmp

Filesize
56.2MB

Download
memory/2776-70-0x0000024D3AC20000-0x0000024D3AC2C000-memory.dmp

Filesize
48KB

Download
memory/2776-71-0x0000024D3AC10000-0x0000024D3AC24000-memory.dmp

Filesize
80KB

Download
memory/2776-69-0x0000024D3ABD0000-0x0000024D3ABE0000-memory.dmp

Filesize
64KB

Download
memory/2776-68-0x0000024D545F0000-0x0000024D546FA000-memory.dmp

Filesize
1.0MB

Download
memory/2776-72-0x0000024D53450000-0x0000024D53474000-memory.dmp

Filesize
144KB

Download
memory/2776-74-0x0000024D54400000-0x0000024D5442A000-memory.dmp

Filesize
168KB

Download
memory/2776-75-0x0000024D54430000-0x0000024D544E2000-memory.dmp

Filesize
712KB

Download
memory/2776-76-0x0000024D54890000-0x0000024D548E0000-memory.dmp

Filesize
320KB

Download
memory/2776-77-0x0000024D548E0000-0x0000024D54902000-memory.dmp

Filesize
136KB

Download
memory/2776-73-0x0000024D3AC30000-0x0000024D3AC3A000-memory.dmp

Filesize
40KB

Download
memory/2776-94-0x0000024D59B70000-0x0000024D59B7C000-memory.dmp

Filesize
48KB

Download
memory/2776-82-0x0000024D54910000-0x0000024D54C10000-memory.dmp

Filesize
3.0MB

Download
memory/2776-84-0x0000024D59320000-0x0000024D59328000-memory.dmp

Filesize
32KB

Download
memory/2776-87-0x0000024D58C50000-0x0000024D58C58000-memory.dmp

Filesize
32KB

Download
memory/2776-86-0x0000024D58C30000-0x0000024D58C3E000-memory.dmp

Filesize
56KB

Download
memory/2776-85-0x0000024D58C60000-0x0000024D58C98000-memory.dmp

Filesize
224KB

Download
memory/2776-90-0x0000024D59B50000-0x0000024D59B72000-memory.dmp

Filesize
136KB

Download
memory/2776-88-0x0000024D59DD0000-0x0000024D59DDA000-memory.dmp

Filesize
40KB

Download
memory/2776-91-0x0000024D5A380000-0x0000024D5A8A8000-memory.dmp

Filesize
5.2MB

Download
memory/3492-37-0x0000000000400000-0x0000000002AF3000-memory.dmp

Filesize
38.9MB

Download
memory/3492-53-0x0000000000400000-0x0000000002AF3000-memory.dmp

Filesize
38.9MB

Download
memory/3492-100-0x0000000000400000-0x0000000002AF3000-memory.dmp

Filesize
38.9MB

Download
memory/3492-104-0x0000000000400000-0x0000000002AF3000-memory.dmp

Filesize
38.9MB

Download
memory/3492-107-0x0000000000400000-0x0000000002AF3000-memory.dmp

Filesize
38.9MB

Download
memory/3492-110-0x0000000000400000-0x0000000002AF3000-memory.dmp

Filesize
38.9MB

Download
memory/4240-66-0x0000000000400000-0x00000000008AD000-memory.dmp

Filesize
4.7MB

Download
memory/4240-55-0x0000000000400000-0x00000000008AD000-memory.dmp

Filesize
4.7MB

Download