stealc | f901ec0e346db59fd39c83d204281ecd342787be99a2c70b3a172d49f99caada

Analysis

max time kernel
138s
max time network
139s
platform
windows10-2004_x64
resource
win10v2004-20240419-en
resource tags

arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
submitted
05-05-2024 15:00

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

f901ec0e346db59fd39c83d204281ecd342787be99a2c70b3a172d49f99caada.exe
Size

398KB
MD5

5a875c4870660d52cc0f5854504f4e58
SHA1

d29234545041ed5a5aa379436e7acdf434cf8c4d
SHA256

f901ec0e346db59fd39c83d204281ecd342787be99a2c70b3a172d49f99caada
SHA512

a27105750c399dab4f00ff01724494549b7d668ce2834daf6dad1c03823994f720bde4f32f66065a0db32c3468b5d83e1d9cd941c8df42582027311068b8addc
SSDEEP

6144:PGC4KxC35rFAajEOyfpC0UWvLVtoyQzEofYbWpYmEGtgUkKLl:T4KkJf/yfpCfWvLNQnzp5EsgzAl

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/2632-64-0x0000029637980000-0x000002963B278000-memory.dmp	family_zgrat_v1
behavioral1/memory/2632-88-0x0000029655900000-0x0000029655A10000-memory.dmp	family_zgrat_v1
behavioral1/memory/2632-102-0x0000029655B80000-0x0000029655BA4000-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-1-5-21-17203666-93769886-2545153620-1000\Control Panel\International\Geo\Nation	f901ec0e346db59fd39c83d204281ecd342787be99a2c70b3a172d49f99caada.exe
Key value queried	\REGISTRY\USER\S-1-5-21-17203666-93769886-2545153620-1000\Control Panel\International\Geo\Nation	u3vs.1.exe

Executes dropped EXE 2 IoCs

pid	Process
4196	u3vs.0.exe
1800	u3vs.1.exe

Loads dropped DLL 2 IoCs

pid	Process
4196	u3vs.0.exe
4196	u3vs.0.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
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
T1552.001
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

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
3940	5032	WerFault.exe	83
3944	4196	WerFault.exe	98

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	u3vs.1.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	u3vs.1.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	u3vs.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	u3vs.0.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	u3vs.0.exe

Suspicious behavior: EnumeratesProcesses 30 IoCs

pid	Process
4196	u3vs.0.exe
4196	u3vs.0.exe
2632	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
2632	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
2632	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
2632	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
2632	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
2632	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
2632	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
2632	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
2632	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
2632	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
2632	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
2632	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
2632	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
2632	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
2632	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
2632	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
2632	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
2632	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
2632	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
2632	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
2632	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
2632	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
2632	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
2632	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
2632	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
2632	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
4196	u3vs.0.exe
4196	u3vs.0.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2632	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe

Suspicious use of FindShellTrayWindow 7 IoCs

pid	Process
1800	u3vs.1.exe
1800	u3vs.1.exe
1800	u3vs.1.exe
1800	u3vs.1.exe
1800	u3vs.1.exe
1800	u3vs.1.exe
1800	u3vs.1.exe

Suspicious use of SendNotifyMessage 7 IoCs

pid	Process
1800	u3vs.1.exe
1800	u3vs.1.exe
1800	u3vs.1.exe
1800	u3vs.1.exe
1800	u3vs.1.exe
1800	u3vs.1.exe
1800	u3vs.1.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 5032 wrote to memory of 4196	5032	f901ec0e346db59fd39c83d204281ecd342787be99a2c70b3a172d49f99caada.exe	98
PID 5032 wrote to memory of 4196	5032	f901ec0e346db59fd39c83d204281ecd342787be99a2c70b3a172d49f99caada.exe	98
PID 5032 wrote to memory of 4196	5032	f901ec0e346db59fd39c83d204281ecd342787be99a2c70b3a172d49f99caada.exe	98
PID 5032 wrote to memory of 1800	5032	f901ec0e346db59fd39c83d204281ecd342787be99a2c70b3a172d49f99caada.exe	100
PID 5032 wrote to memory of 1800	5032	f901ec0e346db59fd39c83d204281ecd342787be99a2c70b3a172d49f99caada.exe	100
PID 5032 wrote to memory of 1800	5032	f901ec0e346db59fd39c83d204281ecd342787be99a2c70b3a172d49f99caada.exe	100
PID 1800 wrote to memory of 2632	1800	u3vs.1.exe	105
PID 1800 wrote to memory of 2632	1800	u3vs.1.exe	105

C:\Users\Admin\AppData\Local\Temp\f901ec0e346db59fd39c83d204281ecd342787be99a2c70b3a172d49f99caada.exe
"C:\Users\Admin\AppData\Local\Temp\f901ec0e346db59fd39c83d204281ecd342787be99a2c70b3a172d49f99caada.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:5032
- C:\Users\Admin\AppData\Local\Temp\u3vs.0.exe
  "C:\Users\Admin\AppData\Local\Temp\u3vs.0.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  PID:4196
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4196 -s 2428
    3⤵
    - Program crash
    PID:3944
- C:\Users\Admin\AppData\Local\Temp\u3vs.1.exe
  "C:\Users\Admin\AppData\Local\Temp\u3vs.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:1800
- - 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:2632
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5032 -s 1644
  2⤵
  - Program crash
  PID:3940

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 5032 -ip 5032
1⤵
PID:2512

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 4196 -ip 4196
1⤵
PID:3976

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

Loading Replay Monitor...

Downloads

C:\ProgramData\Are.docx

Filesize
11KB

MD5
a33e5b189842c5867f46566bdbf7a095

SHA1
e1c06359f6a76da90d19e8fd95e79c832edb3196

SHA256
5abf8e3d1f78de7b09d7f6fb87f9e80e60caacf13ef3c1289665653dacd7c454

SHA512
f2ad3812ec9b915e9618539b0f103f2e9acaad25fbbacd84941c954ce070af231324e83a4621e951c1dbae8d40d50410954e40dd52bbd46e34c54b0d1957407b

Download Submit
C:\ProgramData\mozglue.dll

Filesize
593KB

MD5
c8fd9be83bc728cc04beffafc2907fe9

SHA1
95ab9f701e0024cedfbd312bcfe4e726744c4f2e

SHA256
ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

SHA512
fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

Download Submit
C:\ProgramData\nss3.dll

Filesize
2.0MB

MD5
1cc453cdf74f31e4d913ff9c10acdde2

SHA1
6e85eae544d6e965f15fa5c39700fa7202f3aafe

SHA256
ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

SHA512
dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

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

Filesize
3KB

MD5
15ab35d7ad316e78eacd6a652c7f53a0

SHA1
6c5fbe097f273fb0ba39d86352c96ba718db2e20

SHA256
5c9cbdfe8d9c5becf1e573018c4b9aba99b29844f4cd793688040dd1643a3dcb

SHA512
50d1e22dc9e1ba1c5641c9c339ba91d4d14ea7bf6364ce671c95c316a3ebedc8f7ad5aabc5eac399c106e07a1231737638a679b7b808af1a8423e50d8c1b9a11

Download Submit
C:\Users\Admin\AppData\Local\Temp\u3vs.0.exe

Filesize
274KB

MD5
160e4e93d93c4bc3147c16b4c63fe69e

SHA1
7fcf95d878d7ab62eaee23b18c566bab137d28bc

SHA256
c2743b008dc73aa0655b5034063be0227b2b17cc0d957b2d8139b934a2558d1f

SHA512
7df14379844d0caf1adaaa25ee3d0605aca4f5fb7f85e080b51c06311e7e10e26cd569c17bb6e54542058092c6f748ccd646d500e41f7fef6f8a4248665b75a6

Download Submit
C:\Users\Admin\AppData\Local\Temp\u3vs.1.exe

Filesize
4.6MB

MD5
397926927bca55be4a77839b1c44de6e

SHA1
e10f3434ef3021c399dbba047832f02b3c898dbd

SHA256
4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

SHA512
cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

Download Submit
memory/1800-63-0x0000000000400000-0x00000000008AD000-memory.dmp

Filesize
4.7MB

Download
memory/1800-59-0x0000000000400000-0x00000000008AD000-memory.dmp

Filesize
4.7MB

Download
memory/2632-106-0x000002963D0A0000-0x000002963D0AA000-memory.dmp

Filesize
40KB

Download
memory/2632-111-0x0000029655F40000-0x0000029655FB6000-memory.dmp

Filesize
472KB

Download
memory/2632-169-0x0000029656320000-0x000002965633E000-memory.dmp

Filesize
120KB

Download
memory/2632-162-0x00000296562F0000-0x0000029656312000-memory.dmp

Filesize
136KB

Download
memory/2632-133-0x000002965B1D0000-0x000002965B1DC000-memory.dmp

Filesize
48KB

Download
memory/2632-64-0x0000029637980000-0x000002963B278000-memory.dmp

Filesize
57.0MB

Download
memory/2632-132-0x000002965B220000-0x000002965B270000-memory.dmp

Filesize
320KB

Download
memory/2632-88-0x0000029655900000-0x0000029655A10000-memory.dmp

Filesize
1.1MB

Download
memory/2632-90-0x0000029655A10000-0x0000029655A1C000-memory.dmp

Filesize
48KB

Download
memory/2632-89-0x000002963B790000-0x000002963B7A0000-memory.dmp

Filesize
64KB

Download
memory/2632-95-0x000002963CF90000-0x000002963CFA4000-memory.dmp

Filesize
80KB

Download
memory/2632-102-0x0000029655B80000-0x0000029655BA4000-memory.dmp

Filesize
144KB

Download
memory/2632-129-0x000002965B9B0000-0x000002965BED8000-memory.dmp

Filesize
5.2MB

Download
memory/2632-107-0x0000029655D00000-0x0000029655D2A000-memory.dmp

Filesize
168KB

Download
memory/2632-108-0x0000029655D30000-0x0000029655DE2000-memory.dmp

Filesize
712KB

Download
memory/2632-109-0x0000029655DE0000-0x0000029655E5A000-memory.dmp

Filesize
488KB

Download
memory/2632-110-0x0000029655E60000-0x0000029655EC2000-memory.dmp

Filesize
392KB

Download
memory/2632-128-0x000002965B460000-0x000002965B482000-memory.dmp

Filesize
136KB

Download
memory/2632-112-0x000002963D0B0000-0x000002963D0BA000-memory.dmp

Filesize
40KB

Download
memory/2632-116-0x0000029655FC0000-0x00000296562C0000-memory.dmp

Filesize
3.0MB

Download
memory/2632-121-0x000002965A9B0000-0x000002965A9B8000-memory.dmp

Filesize
32KB

Download
memory/2632-125-0x000002965A2F0000-0x000002965A328000-memory.dmp

Filesize
224KB

Download
memory/2632-126-0x000002965A2C0000-0x000002965A2CE000-memory.dmp

Filesize
56KB

Download
memory/2632-127-0x000002965B450000-0x000002965B45A000-memory.dmp

Filesize
40KB

Download
memory/4196-65-0x0000000061E00000-0x0000000061EF3000-memory.dmp

Filesize
972KB

Download
memory/4196-134-0x0000000000400000-0x0000000002B02000-memory.dmp

Filesize
39.0MB

Download
memory/4196-62-0x0000000000400000-0x0000000002B02000-memory.dmp

Filesize
39.0MB

Download
memory/4196-168-0x0000000000400000-0x0000000002B02000-memory.dmp

Filesize
39.0MB

Download
memory/5032-28-0x0000000000400000-0x0000000002B21000-memory.dmp

Filesize
39.1MB

Download
memory/5032-1-0x0000000002CB0000-0x0000000002DB0000-memory.dmp

Filesize
1024KB

Download
memory/5032-30-0x0000000000400000-0x000000000046F000-memory.dmp

Filesize
444KB

Download
memory/5032-10-0x0000000000400000-0x0000000002B21000-memory.dmp

Filesize
39.1MB

Download
memory/5032-3-0x0000000000400000-0x000000000046F000-memory.dmp

Filesize
444KB

Download
memory/5032-2-0x0000000002FF0000-0x000000000305C000-memory.dmp

Filesize
432KB

Download
memory/5032-29-0x0000000002FF0000-0x000000000305C000-memory.dmp

Filesize
432KB

Download