stealc | 8ca9e0b528d5b1b32b44c66c1be4b2ad58b9fc62d51fe93b781daf3d6cdcac60

General

Target

8ca9e0b528d5b1b32b44c66c1be4b2ad58b9fc62d51fe93b781daf3d6cdcac60.exe
Size

373KB
MD5

d295c86b5bab9f473972497564e6d210
SHA1

4cc03c19785386a26530bfc5bdfb2763e4720802
SHA256

8ca9e0b528d5b1b32b44c66c1be4b2ad58b9fc62d51fe93b781daf3d6cdcac60
SHA512

e3a2af95227825d38cf2b321dd75402c979025b06df1f0b20cf6dc761c27e22b880aba90ae25beaf3c407dfb183fec1aa5c87d01c4aef666701730eb3e944154
SSDEEP

6144:AgXLk9lsA7WNFchU6wxpMoyZVn4lt2DSTZATjxhNUP2uxZ698Obd3Tuto6:AgXLk91ar1rKRn4lAQ+1hNUOr9HxuS6

Score

10^/10

stealc zgrat discovery rat spyware stealer

Malware Config

Extracted

Family

stealc

C2

http://185.172.128.150

Attributes

url_path
/c698e1bc8a2f5e6d.php

Signatures

Detect ZGRat V1 3 IoCs

resource	yara_rule
behavioral2/memory/3504-137-0x000001EF7C280000-0x000001EF7FAB4000-memory.dmp	family_zgrat_v1
behavioral2/memory/3504-138-0x000001EF1A460000-0x000001EF1A56A000-memory.dmp	family_zgrat_v1
behavioral2/memory/3504-142-0x000001EF1A270000-0x000001EF1A294000-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
1508	uow.0.exe
4396	uow.1.exe

Loads dropped DLL 2 IoCs

pid	Process
1508	uow.0.exe
1508	uow.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
4832	896	WerFault.exe	77
4196	1508	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	uow.1.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	uow.1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	uow.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	uow.0.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	uow.0.exe

Suspicious behavior: EnumeratesProcesses 23 IoCs

pid	Process
1508	uow.0.exe
1508	uow.0.exe
3504	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3504	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3504	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3504	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3504	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3504	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3504	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3504	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3504	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3504	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3504	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3504	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3504	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3504	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3504	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3504	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3504	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3504	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3504	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3504	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3504	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3504	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe

Suspicious use of FindShellTrayWindow 7 IoCs

pid	Process
4396	uow.1.exe
4396	uow.1.exe
4396	uow.1.exe
4396	uow.1.exe
4396	uow.1.exe
4396	uow.1.exe
4396	uow.1.exe

Suspicious use of SendNotifyMessage 7 IoCs

pid	Process
4396	uow.1.exe
4396	uow.1.exe
4396	uow.1.exe
4396	uow.1.exe
4396	uow.1.exe
4396	uow.1.exe
4396	uow.1.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 896 wrote to memory of 1508	896	8ca9e0b528d5b1b32b44c66c1be4b2ad58b9fc62d51fe93b781daf3d6cdcac60.exe	78
PID 896 wrote to memory of 1508	896	8ca9e0b528d5b1b32b44c66c1be4b2ad58b9fc62d51fe93b781daf3d6cdcac60.exe	78
PID 896 wrote to memory of 1508	896	8ca9e0b528d5b1b32b44c66c1be4b2ad58b9fc62d51fe93b781daf3d6cdcac60.exe	78
PID 896 wrote to memory of 4396	896	8ca9e0b528d5b1b32b44c66c1be4b2ad58b9fc62d51fe93b781daf3d6cdcac60.exe	81
PID 896 wrote to memory of 4396	896	8ca9e0b528d5b1b32b44c66c1be4b2ad58b9fc62d51fe93b781daf3d6cdcac60.exe	81
PID 896 wrote to memory of 4396	896	8ca9e0b528d5b1b32b44c66c1be4b2ad58b9fc62d51fe93b781daf3d6cdcac60.exe	81
PID 4396 wrote to memory of 3504	4396	uow.1.exe	88
PID 4396 wrote to memory of 3504	4396	uow.1.exe	88

C:\Users\Admin\AppData\Local\Temp\8ca9e0b528d5b1b32b44c66c1be4b2ad58b9fc62d51fe93b781daf3d6cdcac60.exe
"C:\Users\Admin\AppData\Local\Temp\8ca9e0b528d5b1b32b44c66c1be4b2ad58b9fc62d51fe93b781daf3d6cdcac60.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:896
- C:\Users\Admin\AppData\Local\Temp\uow.0.exe
  "C:\Users\Admin\AppData\Local\Temp\uow.0.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  PID:1508
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1508 -s 1412
    3⤵
    - Program crash
    PID:4196
- C:\Users\Admin\AppData\Local\Temp\uow.1.exe
  "C:\Users\Admin\AppData\Local\Temp\uow.1.exe"
  2⤵
  - Executes dropped EXE
  - Checks SCSI registry key(s)
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:4396
- - 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:3504
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 896 -s 1420
  2⤵
  - Program crash
  PID:4832

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 896 -ip 896
1⤵
PID:1612

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 1508 -ip 1508
1⤵
PID:1448

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

3

T1552

Credentials In Files

3

T1552.001

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

3

T1082

Lateral Movement

Collection

Data from Local System

3

T1005

Command and Control

Exfiltration

Impact

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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
2KB

MD5
21a8d0a42ef3e04c26a7c43c488e2622

SHA1
e91e5f5c6daea34a6b1bfea98d9ee30624691de6

SHA256
f429b6fef89d5555679a32414d86769760e4377d7b01069c3da90847d5504af3

SHA512
55222fed790ae4a46fc6b409c38a50d5850d22aef7d40a27a9e8b522aae5142efae986cf16b8683edb31fda4acbccd79a144273ffa139636286df8e71cb75fa4

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

Filesize
3KB

MD5
6f1ffd2438da0be0d6e5b99a8e243c70

SHA1
7bff44436943f9185b969b733574b348db26f5a7

SHA256
30c7884625f942b5d15410879a5aa9795341241a52c2024ded511b0eebbaba54

SHA512
46195a71a05ee477f3f9ce9d8549ca21e3799547a88dfca7fe9202f44544faf589b7132374bb0a74581822ff1d02d784dfdb35520a1b17b1d7d64a19a83b03c5

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

Filesize
231KB

MD5
6d6e316e6aff81b70218dbb96f2b34e0

SHA1
e320424a38cfd7b83473a59c948c4e937c881ee0

SHA256
13acc2397bc1d50a9d679443eb7def41878ce745433da8b4f52f5e59635183e0

SHA512
f800059686ac9f2ce1eaa04034787f07dd06a718da5a16d0205b5264cc96cf2a9b965c9566b5849194f14b255da8c0cf737a60266e92f142f2a64a884979c519

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

Filesize
4.6MB

MD5
397926927bca55be4a77839b1c44de6e

SHA1
e10f3434ef3021c399dbba047832f02b3c898dbd

SHA256
4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

SHA512
cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

Download Submit
memory/896-32-0x0000000000400000-0x000000000046F000-memory.dmp

Filesize
444KB

Download
memory/896-30-0x0000000000400000-0x0000000002599000-memory.dmp

Filesize
33.6MB

Download
memory/896-31-0x00000000042B0000-0x000000000431C000-memory.dmp

Filesize
432KB

Download
memory/896-1-0x0000000002810000-0x0000000002910000-memory.dmp

Filesize
1024KB

Download
memory/896-3-0x0000000000400000-0x000000000046F000-memory.dmp

Filesize
444KB

Download
memory/896-2-0x00000000042B0000-0x000000000431C000-memory.dmp

Filesize
432KB

Download
memory/1508-34-0x0000000061E00000-0x0000000061EF3000-memory.dmp

Filesize
972KB

Download
memory/1508-123-0x0000000000400000-0x0000000002576000-memory.dmp

Filesize
33.5MB

Download
memory/3504-139-0x000001EF1A1F0000-0x000001EF1A200000-memory.dmp

Filesize
64KB

Download
memory/3504-148-0x000001EF1A2B0000-0x000001EF1A2BA000-memory.dmp

Filesize
40KB

Download
memory/3504-137-0x000001EF7C280000-0x000001EF7FAB4000-memory.dmp

Filesize
56.2MB

Download
memory/3504-138-0x000001EF1A460000-0x000001EF1A56A000-memory.dmp

Filesize
1.0MB

Download
memory/3504-140-0x000001EF1A210000-0x000001EF1A21C000-memory.dmp

Filesize
48KB

Download
memory/3504-166-0x000001EF7FF70000-0x000001EF7FF8E000-memory.dmp

Filesize
120KB

Download
memory/3504-141-0x000001EF1A200000-0x000001EF1A214000-memory.dmp

Filesize
80KB

Download
memory/3504-142-0x000001EF1A270000-0x000001EF1A294000-memory.dmp

Filesize
144KB

Download
memory/3504-143-0x000001EF1A2A0000-0x000001EF1A2AA000-memory.dmp

Filesize
40KB

Download
memory/3504-144-0x000001EF1A6C0000-0x000001EF1A772000-memory.dmp

Filesize
712KB

Download
memory/3504-145-0x000001EF1A400000-0x000001EF1A42A000-memory.dmp

Filesize
168KB

Download
memory/3504-146-0x000001EF7FF00000-0x000001EF7FF50000-memory.dmp

Filesize
320KB

Download
memory/3504-147-0x000001EF7FEB0000-0x000001EF7FED2000-memory.dmp

Filesize
136KB

Download
memory/3504-165-0x000001EF80070000-0x000001EF800E6000-memory.dmp

Filesize
472KB

Download
memory/3504-152-0x000001EF1A770000-0x000001EF1AA70000-memory.dmp

Filesize
3.0MB

Download
memory/3504-154-0x000001EF7FE60000-0x000001EF7FE68000-memory.dmp

Filesize
32KB

Download
memory/3504-155-0x000001EF7FFB0000-0x000001EF7FFE8000-memory.dmp

Filesize
224KB

Download
memory/3504-156-0x000001EF7FE70000-0x000001EF7FE7E000-memory.dmp

Filesize
56KB

Download
memory/3504-157-0x000001EF7FE80000-0x000001EF7FE88000-memory.dmp

Filesize
32KB

Download
memory/3504-158-0x000001EF1EB60000-0x000001EF1EB6A000-memory.dmp

Filesize
40KB

Download
memory/3504-159-0x000001EF1F460000-0x000001EF1F4C2000-memory.dmp

Filesize
392KB

Download
memory/3504-160-0x000001EF1EB70000-0x000001EF1EB92000-memory.dmp

Filesize
136KB

Download
memory/3504-161-0x000001EF1F9F0000-0x000001EF1FF18000-memory.dmp

Filesize
5.2MB

Download
memory/3504-164-0x000001EF1EB90000-0x000001EF1EB9C000-memory.dmp

Filesize
48KB

Download
memory/4396-136-0x0000000000400000-0x00000000008AD000-memory.dmp

Filesize
4.7MB

Download
memory/4396-133-0x0000000000400000-0x00000000008AD000-memory.dmp

Filesize
4.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads