stealc | 85721097af268e8a1d9d759823200504b0e7c8d223aee811a7197e13909ec081

Analysis

max time kernel
149s
max time network
156s
platform
windows11-21h2_x64
resource
win11-20240508-en
resource tags

arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system
submitted
09-05-2024 13:00

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General

Target

85721097af268e8a1d9d759823200504b0e7c8d223aee811a7197e13909ec081.exe
Size

382KB
MD5

8fd202861ab0e7f09bb63f7b0baf43db
SHA1

54711bc55e1fc8f5ed329515ef13eb3c9aafad11
SHA256

85721097af268e8a1d9d759823200504b0e7c8d223aee811a7197e13909ec081
SHA512

d7fb31ec904a4973e752b8b00d616cec78639b58ff2cda5f5d5d068cd0265fb6c38cf75fbce4e5125f861de026d9e128b3d950c72655eec84b42186776328cb4
SSDEEP

6144:1jNHmrGVx/2m1f+eo864r+m4fSw3Axa3Uet46nBeJKtl:1jNGexJo8raXfS8Axa35t46nUJKtl

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
behavioral2/memory/1016-67-0x000001D5F9AE0000-0x000001D5FD314000-memory.dmp	family_zgrat_v1
behavioral2/memory/1016-68-0x000001D59A340000-0x000001D59A44A000-memory.dmp	family_zgrat_v1
behavioral2/memory/1016-72-0x000001D59A4C0000-0x000001D59A4E4000-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

Executes dropped EXE 2 IoCs

pid	Process
2744	u294.0.exe
1696	u294.1.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
880	2920	WerFault.exe	78

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 queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	u294.1.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	u294.1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	u294.1.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	u294.0.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	u294.0.exe

Suspicious behavior: EnumeratesProcesses 23 IoCs

pid	Process
1016	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1016	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1016	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1016	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1016	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1016	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1016	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1016	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1016	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1016	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1016	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1016	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1016	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1016	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1016	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1016	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1016	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1016	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1016	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1016	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1016	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
2744	u294.0.exe
2744	u294.0.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1016	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe

Suspicious use of FindShellTrayWindow 7 IoCs

pid	Process
1696	u294.1.exe
1696	u294.1.exe
1696	u294.1.exe
1696	u294.1.exe
1696	u294.1.exe
1696	u294.1.exe
1696	u294.1.exe

Suspicious use of SendNotifyMessage 7 IoCs

pid	Process
1696	u294.1.exe
1696	u294.1.exe
1696	u294.1.exe
1696	u294.1.exe
1696	u294.1.exe
1696	u294.1.exe
1696	u294.1.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2920 wrote to memory of 2744	2920	85721097af268e8a1d9d759823200504b0e7c8d223aee811a7197e13909ec081.exe	81
PID 2920 wrote to memory of 2744	2920	85721097af268e8a1d9d759823200504b0e7c8d223aee811a7197e13909ec081.exe	81
PID 2920 wrote to memory of 2744	2920	85721097af268e8a1d9d759823200504b0e7c8d223aee811a7197e13909ec081.exe	81
PID 2920 wrote to memory of 1696	2920	85721097af268e8a1d9d759823200504b0e7c8d223aee811a7197e13909ec081.exe	84
PID 2920 wrote to memory of 1696	2920	85721097af268e8a1d9d759823200504b0e7c8d223aee811a7197e13909ec081.exe	84
PID 2920 wrote to memory of 1696	2920	85721097af268e8a1d9d759823200504b0e7c8d223aee811a7197e13909ec081.exe	84
PID 1696 wrote to memory of 1016	1696	u294.1.exe	89
PID 1696 wrote to memory of 1016	1696	u294.1.exe	89

C:\Users\Admin\AppData\Local\Temp\85721097af268e8a1d9d759823200504b0e7c8d223aee811a7197e13909ec081.exe
"C:\Users\Admin\AppData\Local\Temp\85721097af268e8a1d9d759823200504b0e7c8d223aee811a7197e13909ec081.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2920
- C:\Users\Admin\AppData\Local\Temp\u294.0.exe
  "C:\Users\Admin\AppData\Local\Temp\u294.0.exe"
  2⤵
  - Executes dropped EXE
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  PID:2744
- C:\Users\Admin\AppData\Local\Temp\u294.1.exe
  "C:\Users\Admin\AppData\Local\Temp\u294.1.exe"
  2⤵
  - Executes dropped EXE
  - Checks SCSI registry key(s)
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:1696
- - 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:1016
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2920 -s 1164
  2⤵
  - Program crash
  PID:880

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 2920 -ip 2920
1⤵
PID:472

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\iolo\dm\ioloDMLog.txt

Filesize
3KB

MD5
c1b40cfc7f9c7eca752e584fc46f3eb8

SHA1
7697834a281e09ef5964710d018a3bf43e05619a

SHA256
2625e16a4ed7f73d7a7cd2b6f40f021c473507817bf9419588dc519f7efc3291

SHA512
4008523a1a6e25dba851afefc5bf99b971baad965bd6de0f4f1f0e3ede9b7169111dad5009960bc43b03ca7c110da07d39e907508b3335d665a6e07048ae885e

Download Submit
C:\Users\Admin\AppData\Local\Temp\u294.0.exe

Filesize
218KB

MD5
5246be38e251c182f838adf4ef42ad40

SHA1
fe09ba5ee40d4c4897c8f8e3fa819c13b0e324d9

SHA256
7dbf762b2ef2b651a4e8c7b7d9b8996a1de0cfa44119452f1d3f29bfe03dfd86

SHA512
a3f7c75a2355935d19c733d67aeff3e08f382ae60c1ba45364974ff91ca779ac5e49c40475fe35b8923a130e8670de0311fdf3c03de935312869e9a9a8b21b14

Download Submit
C:\Users\Admin\AppData\Local\Temp\u294.1.exe

Filesize
4.6MB

MD5
397926927bca55be4a77839b1c44de6e

SHA1
e10f3434ef3021c399dbba047832f02b3c898dbd

SHA256
4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

SHA512
cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

Download Submit
memory/1016-89-0x000001D59F480000-0x000001D59F4E2000-memory.dmp

Filesize
392KB

Download
memory/1016-90-0x000001D59EB70000-0x000001D59EB92000-memory.dmp

Filesize
136KB

Download
memory/1016-77-0x000001D5FD700000-0x000001D5FD722000-memory.dmp

Filesize
136KB

Download
memory/1016-76-0x000001D5FD740000-0x000001D5FD790000-memory.dmp

Filesize
320KB

Download
memory/1016-97-0x000001D5FD7B0000-0x000001D5FD7CE000-memory.dmp

Filesize
120KB

Download
memory/1016-95-0x000001D5FD8D0000-0x000001D5FD946000-memory.dmp

Filesize
472KB

Download
memory/1016-94-0x000001D59EB90000-0x000001D59EB9C000-memory.dmp

Filesize
48KB

Download
memory/1016-91-0x000001D59FA10000-0x000001D59FF38000-memory.dmp

Filesize
5.2MB

Download
memory/1016-88-0x000001D59EB50000-0x000001D59EB5A000-memory.dmp

Filesize
40KB

Download
memory/1016-67-0x000001D5F9AE0000-0x000001D5FD314000-memory.dmp

Filesize
56.2MB

Download
memory/1016-68-0x000001D59A340000-0x000001D59A44A000-memory.dmp

Filesize
1.0MB

Download
memory/1016-72-0x000001D59A4C0000-0x000001D59A4E4000-memory.dmp

Filesize
144KB

Download
memory/1016-71-0x000001D59A450000-0x000001D59A464000-memory.dmp

Filesize
80KB

Download
memory/1016-70-0x000001D59A460000-0x000001D59A46C000-memory.dmp

Filesize
48KB

Download
memory/1016-69-0x000001D5818F0000-0x000001D581900000-memory.dmp

Filesize
64KB

Download
memory/1016-73-0x000001D59A640000-0x000001D59A64A000-memory.dmp

Filesize
40KB

Download
memory/1016-74-0x000001D59A670000-0x000001D59A722000-memory.dmp

Filesize
712KB

Download
memory/1016-75-0x000001D59A730000-0x000001D59A75A000-memory.dmp

Filesize
168KB

Download
memory/1016-86-0x000001D5FD6D0000-0x000001D5FD6DE000-memory.dmp

Filesize
56KB

Download
memory/1016-87-0x000001D5FD6E0000-0x000001D5FD6E8000-memory.dmp

Filesize
32KB

Download
memory/1016-82-0x000001D59A760000-0x000001D59AA60000-memory.dmp

Filesize
3.0MB

Download
memory/1016-78-0x000001D581910000-0x000001D58191A000-memory.dmp

Filesize
40KB

Download
memory/1016-84-0x000001D5FD470000-0x000001D5FD478000-memory.dmp

Filesize
32KB

Download
memory/1016-85-0x000001D5FD810000-0x000001D5FD848000-memory.dmp

Filesize
224KB

Download
memory/1696-66-0x0000000000400000-0x00000000008AD000-memory.dmp

Filesize
4.7MB

Download
memory/1696-53-0x0000000000400000-0x00000000008AD000-memory.dmp

Filesize
4.7MB

Download
memory/2744-63-0x0000000000400000-0x0000000002AF3000-memory.dmp

Filesize
38.9MB

Download
memory/2744-105-0x0000000000400000-0x0000000002AF3000-memory.dmp

Filesize
38.9MB

Download
memory/2744-96-0x0000000000400000-0x0000000002AF3000-memory.dmp

Filesize
38.9MB

Download
memory/2744-101-0x0000000000400000-0x0000000002AF3000-memory.dmp

Filesize
38.9MB

Download
memory/2744-108-0x0000000000400000-0x0000000002AF3000-memory.dmp

Filesize
38.9MB

Download
memory/2920-1-0x0000000002DA0000-0x0000000002EA0000-memory.dmp

Filesize
1024KB

Download
memory/2920-3-0x0000000000400000-0x000000000046F000-memory.dmp

Filesize
444KB

Download
memory/2920-2-0x0000000004850000-0x00000000048BC000-memory.dmp

Filesize
432KB

Download
memory/2920-36-0x0000000004850000-0x00000000048BC000-memory.dmp

Filesize
432KB

Download
memory/2920-37-0x0000000000400000-0x000000000046F000-memory.dmp

Filesize
444KB

Download
memory/2920-30-0x0000000000400000-0x0000000002B1D000-memory.dmp

Filesize
39.1MB

Download