stealc | 7af67262de49c066ace24dd3817b8902ddbb1a9ac76fa8d307f0a8211b6ccf04

Analysis

max time kernel
126s
max time network
128s
platform
windows11-21h2_x64
resource
win11-20240412-en
resource tags

arch:x64arch:x86image:win11-20240412-enlocale:en-usos:windows11-21h2-x64system
submitted
23/04/2024, 02:14

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General

Target

7af67262de49c066ace24dd3817b8902ddbb1a9ac76fa8d307f0a8211b6ccf04.exe
Size

425KB
MD5

d215783609513e4b82b1810011429514
SHA1

58c2bb207303cbf33024a2c739b8165489d52944
SHA256

7af67262de49c066ace24dd3817b8902ddbb1a9ac76fa8d307f0a8211b6ccf04
SHA512

48aa8ee9e730c6af5a9c23a30b753c62302f62792c46e343360472c1b9a6f57331a155ffbd7735ffc86c65dff8409ce64e88b726ba0e95512b5b4fa1c77689b2
SSDEEP

6144:B6gl3G1Y/X3OHd9ASFIBFcKUjhIR5hfXtleej0nJTRAaPBS+b/fP:IgX/O0KOzXeLdRlX/fP

Score

10^/10

stealc zgrat rat stealer

Malware Config

Signatures

Detect ZGRat V1 3 IoCs

resource	yara_rule
behavioral2/memory/1004-87-0x000002A5B4550000-0x000002A5B7E48000-memory.dmp	family_zgrat_v1
behavioral2/memory/1004-89-0x000002A5D25B0000-0x000002A5D26C0000-memory.dmp	family_zgrat_v1
behavioral2/memory/1004-93-0x000002A5D26C0000-0x000002A5D26E4000-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 3 IoCs

pid	Process
2092	u15o.0.exe
992	run.exe
3092	u15o.3.exe

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
1048	2092	WerFault.exe	81
3976	1500	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 opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	u15o.3.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	u15o.3.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	u15o.3.exe

Suspicious behavior: EnumeratesProcesses 19 IoCs

pid	Process
1004	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1004	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1004	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1004	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1004	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1004	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1004	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1004	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1004	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1004	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1004	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1004	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1004	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1004	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1004	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1004	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1004	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1004	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1004	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1004	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe

Suspicious use of FindShellTrayWindow 7 IoCs

pid	Process
3092	u15o.3.exe
3092	u15o.3.exe
3092	u15o.3.exe
3092	u15o.3.exe
3092	u15o.3.exe
3092	u15o.3.exe
3092	u15o.3.exe

Suspicious use of SendNotifyMessage 7 IoCs

pid	Process
3092	u15o.3.exe
3092	u15o.3.exe
3092	u15o.3.exe
3092	u15o.3.exe
3092	u15o.3.exe
3092	u15o.3.exe
3092	u15o.3.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
992	run.exe
992	run.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1500 wrote to memory of 2092	1500	7af67262de49c066ace24dd3817b8902ddbb1a9ac76fa8d307f0a8211b6ccf04.exe	81
PID 1500 wrote to memory of 2092	1500	7af67262de49c066ace24dd3817b8902ddbb1a9ac76fa8d307f0a8211b6ccf04.exe	81
PID 1500 wrote to memory of 2092	1500	7af67262de49c066ace24dd3817b8902ddbb1a9ac76fa8d307f0a8211b6ccf04.exe	81
PID 1500 wrote to memory of 992	1500	7af67262de49c066ace24dd3817b8902ddbb1a9ac76fa8d307f0a8211b6ccf04.exe	85
PID 1500 wrote to memory of 992	1500	7af67262de49c066ace24dd3817b8902ddbb1a9ac76fa8d307f0a8211b6ccf04.exe	85
PID 1500 wrote to memory of 992	1500	7af67262de49c066ace24dd3817b8902ddbb1a9ac76fa8d307f0a8211b6ccf04.exe	85
PID 1500 wrote to memory of 3092	1500	7af67262de49c066ace24dd3817b8902ddbb1a9ac76fa8d307f0a8211b6ccf04.exe	88
PID 1500 wrote to memory of 3092	1500	7af67262de49c066ace24dd3817b8902ddbb1a9ac76fa8d307f0a8211b6ccf04.exe	88
PID 1500 wrote to memory of 3092	1500	7af67262de49c066ace24dd3817b8902ddbb1a9ac76fa8d307f0a8211b6ccf04.exe	88
PID 3092 wrote to memory of 1004	3092	u15o.3.exe	92
PID 3092 wrote to memory of 1004	3092	u15o.3.exe	92

C:\Users\Admin\AppData\Local\Temp\7af67262de49c066ace24dd3817b8902ddbb1a9ac76fa8d307f0a8211b6ccf04.exe
"C:\Users\Admin\AppData\Local\Temp\7af67262de49c066ace24dd3817b8902ddbb1a9ac76fa8d307f0a8211b6ccf04.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1500
- C:\Users\Admin\AppData\Local\Temp\u15o.0.exe
  "C:\Users\Admin\AppData\Local\Temp\u15o.0.exe"
  2⤵
  - Executes dropped EXE
  PID:2092
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2092 -s 1140
    3⤵
    - Program crash
    PID:1048
- C:\Users\Admin\AppData\Local\Temp\u15o.2\run.exe
  "C:\Users\Admin\AppData\Local\Temp\u15o.2\run.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  PID:992
- C:\Users\Admin\AppData\Local\Temp\u15o.3.exe
  "C:\Users\Admin\AppData\Local\Temp\u15o.3.exe"
  2⤵
  - Executes dropped EXE
  - Checks SCSI registry key(s)
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:3092
- - 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:1004
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1500 -s 1544
  2⤵
  - Program crash
  PID:3976

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 2092 -ip 2092
1⤵
PID:4840

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 496 -p 1500 -ip 1500
1⤵
PID:4596

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\u15o.0.exe

Filesize
270KB

MD5
790e1cccedf316c9ffb5a66796ffbca6

SHA1
92477054c2030a5427da56b3c6a07e41a3674a0e

SHA256
0b5bf597edfe4bbb8d1aef6ebc7aef86f3857466ab38970f56d7bc5bd42027a0

SHA512
8ff4fc0dd87e773cb7062e435cea60351df12bea7e11bbe069c14701bde8fdf9bfa272eace55d847cb45c104792ba68a8e619eda32fac80d80241592da32b66a

Download Submit
C:\Users\Admin\AppData\Local\Temp\u15o.2\UIxMarketPlugin.dll

Filesize
1.6MB

MD5
aaa68086149eb0a5b76c67e2a687b262

SHA1
63fcb9226a7d8489fb15f930c081347ddec58c25

SHA256
40e1b9e74963052d04e267185d7c03ac348416363ed2ce6e210a7550a285ff83

SHA512
6b5fd86426955db14793c057e5d6d5ba183262f903dbf307609da05e6a7b90a90801082844b270c8f7fb65985e67d53bf8c03245c55e62fcde1b0254921766a8

Download Submit
C:\Users\Admin\AppData\Local\Temp\u15o.2\relay.dll

Filesize
1.5MB

MD5
e2021d931fb1e423c18bf8d16b22228e

SHA1
9efb4c88cc7bf296a81b73425d91873b6fb98a9f

SHA256
ae8628900ff30d4a7c826137ee817bc7c6fdfbb4b00618e015bcb69a2f19bbb7

SHA512
7fdc66c9fa47199fc5d3f2886831adb67e0241431350ad813dfa0b7e17026477bc2d9c551a1a4e158dec6204d9e9124e1918954cd630136538cd6e52838b9a43

Download Submit
C:\Users\Admin\AppData\Local\Temp\u15o.2\run.exe

Filesize
2.4MB

MD5
817ea35f043d663cba3b81ee02880d34

SHA1
b6bbf7e8d53eb24fa2bfb7d3fb9410adbcfffd50

SHA256
18727c065a688f805813aef0e38ce040ae32deb6ec87116d70e696bca5d5da13

SHA512
69bbc00fcff0a4f0b17e96b72e711052dbfde4501a29365167ff3c16e70be14545c7a2ffc32bdc9377a3d1eb74d5d66d89313a9bf5bbca0b01a557d109f59c11

Download Submit
C:\Users\Admin\AppData\Local\Temp\u15o.3.exe

Filesize
4.6MB

MD5
397926927bca55be4a77839b1c44de6e

SHA1
e10f3434ef3021c399dbba047832f02b3c898dbd

SHA256
4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

SHA512
cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

Download Submit
memory/1004-112-0x000002A5D77F0000-0x000002A5D7812000-memory.dmp

Filesize
136KB

Download
memory/1004-86-0x00007FFF99A40000-0x00007FFF9A502000-memory.dmp

Filesize
10.8MB

Download
memory/1004-127-0x000002A5D24A0000-0x000002A5D24B0000-memory.dmp

Filesize
64KB

Download
memory/1004-126-0x000002A5D24A0000-0x000002A5D24B0000-memory.dmp

Filesize
64KB

Download
memory/1004-125-0x000002A5D24A0000-0x000002A5D24B0000-memory.dmp

Filesize
64KB

Download
memory/1004-124-0x000002A5D24A0000-0x000002A5D24B0000-memory.dmp

Filesize
64KB

Download
memory/1004-123-0x000002A5D24A0000-0x000002A5D24B0000-memory.dmp

Filesize
64KB

Download
memory/1004-122-0x00007FFF99A40000-0x00007FFF9A502000-memory.dmp

Filesize
10.8MB

Download
memory/1004-120-0x000002A5D7630000-0x000002A5D764E000-memory.dmp

Filesize
120KB

Download
memory/1004-119-0x000002A5D7600000-0x000002A5D7622000-memory.dmp

Filesize
136KB

Download
memory/1004-118-0x000002A5D7560000-0x000002A5D756C000-memory.dmp

Filesize
48KB

Download
memory/1004-117-0x000002A5D24A0000-0x000002A5D24B0000-memory.dmp

Filesize
64KB

Download
memory/1004-99-0x000002A5D2AE0000-0x000002A5D2B56000-memory.dmp

Filesize
472KB

Download
memory/1004-87-0x000002A5B4550000-0x000002A5B7E48000-memory.dmp

Filesize
57.0MB

Download
memory/1004-88-0x000002A5D24A0000-0x000002A5D24B0000-memory.dmp

Filesize
64KB

Download
memory/1004-89-0x000002A5D25B0000-0x000002A5D26C0000-memory.dmp

Filesize
1.1MB

Download
memory/1004-91-0x000002A5D2430000-0x000002A5D243C000-memory.dmp

Filesize
48KB

Download
memory/1004-90-0x000002A5B9B70000-0x000002A5B9B80000-memory.dmp

Filesize
64KB

Download
memory/1004-92-0x000002A5B9C40000-0x000002A5B9C54000-memory.dmp

Filesize
80KB

Download
memory/1004-93-0x000002A5D26C0000-0x000002A5D26E4000-memory.dmp

Filesize
144KB

Download
memory/1004-94-0x000002A5D26E0000-0x000002A5D26EA000-memory.dmp

Filesize
40KB

Download
memory/1004-95-0x000002A5D2720000-0x000002A5D274A000-memory.dmp

Filesize
168KB

Download
memory/1004-116-0x000002A5D75B0000-0x000002A5D7600000-memory.dmp

Filesize
320KB

Download
memory/1004-96-0x000002A5D28D0000-0x000002A5D2982000-memory.dmp

Filesize
712KB

Download
memory/1004-109-0x000002A5D6E80000-0x000002A5D6EB8000-memory.dmp

Filesize
224KB

Download
memory/1004-97-0x000002A5D2980000-0x000002A5D29FA000-memory.dmp

Filesize
488KB

Download
memory/1004-100-0x000002A5D2410000-0x000002A5D241A000-memory.dmp

Filesize
40KB

Download
memory/1004-104-0x000002A5D2B60000-0x000002A5D2E60000-memory.dmp

Filesize
3.0MB

Download
memory/1004-106-0x000002A5D24A0000-0x000002A5D24B0000-memory.dmp

Filesize
64KB

Download
memory/1004-108-0x000002A5D6F00000-0x000002A5D6F08000-memory.dmp

Filesize
32KB

Download
memory/1004-107-0x000002A5D24A0000-0x000002A5D24B0000-memory.dmp

Filesize
64KB

Download
memory/1004-98-0x000002A5D2A00000-0x000002A5D2A62000-memory.dmp

Filesize
392KB

Download
memory/1004-110-0x000002A5D6E50000-0x000002A5D6E5E000-memory.dmp

Filesize
56KB

Download
memory/1004-111-0x000002A5D77E0000-0x000002A5D77EA000-memory.dmp

Filesize
40KB

Download
memory/1004-113-0x000002A5D7D40000-0x000002A5D8268000-memory.dmp

Filesize
5.2MB

Download
memory/1500-1-0x0000000002DE0000-0x0000000002EE0000-memory.dmp

Filesize
1024KB

Download
memory/1500-52-0x0000000000400000-0x0000000002C4D000-memory.dmp

Filesize
40.3MB

Download
memory/1500-53-0x00000000031F0000-0x0000000003262000-memory.dmp

Filesize
456KB

Download
memory/1500-2-0x00000000031F0000-0x0000000003262000-memory.dmp

Filesize
456KB

Download
memory/1500-3-0x0000000000400000-0x0000000002C4D000-memory.dmp

Filesize
40.3MB

Download
memory/2092-15-0x0000000000400000-0x0000000002C26000-memory.dmp

Filesize
40.1MB

Download
memory/2092-36-0x0000000000400000-0x0000000002C26000-memory.dmp

Filesize
40.1MB

Download
memory/2092-13-0x0000000002E60000-0x0000000002F60000-memory.dmp

Filesize
1024KB

Download
memory/2092-14-0x00000000030A0000-0x00000000030C7000-memory.dmp

Filesize
156KB

Download
memory/3092-85-0x0000000000400000-0x00000000008AD000-memory.dmp

Filesize
4.7MB

Download
memory/3092-74-0x0000000000400000-0x00000000008AD000-memory.dmp

Filesize
4.7MB

Download
memory/3092-47-0x0000000002520000-0x0000000002521000-memory.dmp

Filesize
4KB

Download