stealc | 0cb6c3f4dccf234573e435d852369ed1eafb10099aac83e3ca4f91cc6c9952b0

General

Target

0cb6c3f4dccf234573e435d852369ed1eafb10099aac83e3ca4f91cc6c9952b0.exe
Size

382KB
MD5

56d46ffa8b32e27d0b2b11c75703ac70
SHA1

ec25bf6871882b57fa3d96e8c71c7386ac223cf4
SHA256

0cb6c3f4dccf234573e435d852369ed1eafb10099aac83e3ca4f91cc6c9952b0
SHA512

a4f7fef85fb79d51fa277138ec51d942a88c697d4557d2c333242b93a3fbcc2e6ac4d4ccc5ff585a7f70c5bc1559ee32dcbaecf380b62aeb8d71417f2d3ed2d8
SSDEEP

6144:L0NTKE3CDWHhQgoFZHaJtrzQr792AiXQvdUodm7iKMceJK2l:L0NGMCaXoFdAFzQrJviXq3w7IJK2l

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/3104-66-0x00000271E8CD0000-0x00000271EC504000-memory.dmp	family_zgrat_v1
behavioral2/memory/3104-67-0x00000271EEE00000-0x00000271EEF0A000-memory.dmp	family_zgrat_v1
behavioral2/memory/3104-71-0x00000271EE3A0000-0x00000271EE3C4000-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
3348	u3uw.0.exe
4436	u3uw.1.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
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
1772	5000	WerFault.exe	77
4736	3348	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	u3uw.1.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	u3uw.1.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	u3uw.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	u3uw.0.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	u3uw.0.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
3800	timeout.exe

Suspicious behavior: EnumeratesProcesses 23 IoCs

pid	Process
3104	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3104	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3104	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3104	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3104	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3104	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3104	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3104	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3104	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3104	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3104	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3104	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3104	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3104	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3104	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3104	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3104	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3104	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3104	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3104	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3104	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3348	u3uw.0.exe
3348	u3uw.0.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3104	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe

Suspicious use of FindShellTrayWindow 7 IoCs

pid	Process
4436	u3uw.1.exe
4436	u3uw.1.exe
4436	u3uw.1.exe
4436	u3uw.1.exe
4436	u3uw.1.exe
4436	u3uw.1.exe
4436	u3uw.1.exe

Suspicious use of SendNotifyMessage 7 IoCs

pid	Process
4436	u3uw.1.exe
4436	u3uw.1.exe
4436	u3uw.1.exe
4436	u3uw.1.exe
4436	u3uw.1.exe
4436	u3uw.1.exe
4436	u3uw.1.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 5000 wrote to memory of 3348	5000	0cb6c3f4dccf234573e435d852369ed1eafb10099aac83e3ca4f91cc6c9952b0.exe	78
PID 5000 wrote to memory of 3348	5000	0cb6c3f4dccf234573e435d852369ed1eafb10099aac83e3ca4f91cc6c9952b0.exe	78
PID 5000 wrote to memory of 3348	5000	0cb6c3f4dccf234573e435d852369ed1eafb10099aac83e3ca4f91cc6c9952b0.exe	78
PID 5000 wrote to memory of 4436	5000	0cb6c3f4dccf234573e435d852369ed1eafb10099aac83e3ca4f91cc6c9952b0.exe	81
PID 5000 wrote to memory of 4436	5000	0cb6c3f4dccf234573e435d852369ed1eafb10099aac83e3ca4f91cc6c9952b0.exe	81
PID 5000 wrote to memory of 4436	5000	0cb6c3f4dccf234573e435d852369ed1eafb10099aac83e3ca4f91cc6c9952b0.exe	81
PID 4436 wrote to memory of 3104	4436	u3uw.1.exe	86
PID 4436 wrote to memory of 3104	4436	u3uw.1.exe	86
PID 3348 wrote to memory of 4688	3348	u3uw.0.exe	89
PID 3348 wrote to memory of 4688	3348	u3uw.0.exe	89
PID 3348 wrote to memory of 4688	3348	u3uw.0.exe	89
PID 4688 wrote to memory of 3800	4688	cmd.exe	92
PID 4688 wrote to memory of 3800	4688	cmd.exe	92
PID 4688 wrote to memory of 3800	4688	cmd.exe	92

C:\Users\Admin\AppData\Local\Temp\0cb6c3f4dccf234573e435d852369ed1eafb10099aac83e3ca4f91cc6c9952b0.exe
"C:\Users\Admin\AppData\Local\Temp\0cb6c3f4dccf234573e435d852369ed1eafb10099aac83e3ca4f91cc6c9952b0.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:5000
- C:\Users\Admin\AppData\Local\Temp\u3uw.0.exe
  "C:\Users\Admin\AppData\Local\Temp\u3uw.0.exe"
  2⤵
  - Executes dropped EXE
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:3348
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe" /c timeout /t 5 & del /f /q "C:\Users\Admin\AppData\Local\Temp\u3uw.0.exe" & del "C:\ProgramData\*.dll"" & exit
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:4688
  - - C:\Windows\SysWOW64\timeout.exe
      timeout /t 5
      4⤵
      Delays execution with timeout.exe
      PID:3800
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3348 -s 1556
    3⤵
    - Program crash
    PID:4736
- C:\Users\Admin\AppData\Local\Temp\u3uw.1.exe
  "C:\Users\Admin\AppData\Local\Temp\u3uw.1.exe"
  2⤵
  - Executes dropped EXE
  - Checks SCSI registry key(s)
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:4436
- - 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:3104
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5000 -s 1160
  2⤵
  - Program crash
  PID:1772

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 5000 -ip 5000
1⤵
PID:4948

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 3348 -ip 3348
1⤵
PID:456

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

3

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
2KB

MD5
8b38d8c22ea3fe2d5292bfb01ccc7686

SHA1
67bc8b5222c5b230c6f4040222204e7b740a2521

SHA256
fa7ef8cb1491f65a85f4cf9fdfdf467cd3e70b2b8c5ab849dd408b42d9106bc8

SHA512
847edb0c6df8ae4193497b9231d087a53757b9fbae4aa152079c3751eba6b9ab761aade2fe6d066c0c339bd9dad1ec71d771942fce903a94fafea88a0e4a7440

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

Filesize
3KB

MD5
5a746a3eb659e858ab300bc18ef3c966

SHA1
4331350d1209200124c0692bf2fb8e09b71da6ef

SHA256
b949d5969694957cb4e8c44530fe15da8e246cd6af2f95f815057d9c5b2ccec0

SHA512
8d6e0f0788df996ae48fbda925d32c23f76e13cbd92b8b39c5c88c897baf49433cb8aac0d67b40f4cbd3961dfb1270cfb03102b50f0cbf27b21e1696d1150ad2

Download Submit
C:\Users\Admin\AppData\Local\Temp\u3uw.0.exe

Filesize
240KB

MD5
a5a396650cc1831759ee447062d4593a

SHA1
37bd8f9b348b16378ea9023489243b8725addf82

SHA256
a1f50375231c83613bd18aee62fdeccb52c06445d1eebf5fc7293246746f24a5

SHA512
a3063b2168164df6fd19cec76c7f07f30c4dae3fa5c00b7efb9c3005edbf564705701adbba575280373c916cf31e6450b246d6046de5ca384897d2751ffc2d4c

Download Submit
C:\Users\Admin\AppData\Local\Temp\u3uw.1.exe

Filesize
4.6MB

MD5
397926927bca55be4a77839b1c44de6e

SHA1
e10f3434ef3021c399dbba047832f02b3c898dbd

SHA256
4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

SHA512
cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

Download Submit
memory/3104-89-0x00000271F3B70000-0x00000271F3B92000-memory.dmp

Filesize
136KB

Download
memory/3104-86-0x00000271F3470000-0x00000271F3478000-memory.dmp

Filesize
32KB

Download
memory/3104-73-0x00000271EEBC0000-0x00000271EEBEA000-memory.dmp

Filesize
168KB

Download
memory/3104-74-0x00000271EF060000-0x00000271EF112000-memory.dmp

Filesize
712KB

Download
memory/3104-96-0x00000271F3BD0000-0x00000271F3BEE000-memory.dmp

Filesize
120KB

Download
memory/3104-94-0x00000271F3C70000-0x00000271F3CE6000-memory.dmp

Filesize
472KB

Download
memory/3104-93-0x00000271F3B90000-0x00000271F3B9C000-memory.dmp

Filesize
48KB

Download
memory/3104-90-0x00000271F4390000-0x00000271F48B8000-memory.dmp

Filesize
5.2MB

Download
memory/3104-88-0x00000271F3E00000-0x00000271F3E62000-memory.dmp

Filesize
392KB

Download
memory/3104-66-0x00000271E8CD0000-0x00000271EC504000-memory.dmp

Filesize
56.2MB

Download
memory/3104-67-0x00000271EEE00000-0x00000271EEF0A000-memory.dmp

Filesize
1.0MB

Download
memory/3104-69-0x00000271EE340000-0x00000271EE34C000-memory.dmp

Filesize
48KB

Download
memory/3104-68-0x00000271EC970000-0x00000271EC980000-memory.dmp

Filesize
64KB

Download
memory/3104-70-0x00000271EE330000-0x00000271EE344000-memory.dmp

Filesize
80KB

Download
memory/3104-71-0x00000271EE3A0000-0x00000271EE3C4000-memory.dmp

Filesize
144KB

Download
memory/3104-72-0x00000271EE3D0000-0x00000271EE3DA000-memory.dmp

Filesize
40KB

Download
memory/3104-87-0x00000271F3520000-0x00000271F352A000-memory.dmp

Filesize
40KB

Download
memory/3104-75-0x00000271EED90000-0x00000271EEDE0000-memory.dmp

Filesize
320KB

Download
memory/3104-85-0x00000271F2DA0000-0x00000271F2DAE000-memory.dmp

Filesize
56KB

Download
memory/3104-76-0x00000271EEC20000-0x00000271EEC42000-memory.dmp

Filesize
136KB

Download
memory/3104-77-0x00000271ECA30000-0x00000271ECA3A000-memory.dmp

Filesize
40KB

Download
memory/3104-81-0x00000271EF110000-0x00000271EF410000-memory.dmp

Filesize
3.0MB

Download
memory/3104-83-0x00000271EEDE0000-0x00000271EEDE8000-memory.dmp

Filesize
32KB

Download
memory/3104-84-0x00000271F34A0000-0x00000271F34D8000-memory.dmp

Filesize
224KB

Download
memory/3348-95-0x0000000000400000-0x0000000002AF9000-memory.dmp

Filesize
39.0MB

Download
memory/3348-98-0x0000000061E00000-0x0000000061EF3000-memory.dmp

Filesize
972KB

Download
memory/3348-110-0x0000000000400000-0x0000000002AF9000-memory.dmp

Filesize
39.0MB

Download
memory/4436-65-0x0000000000400000-0x00000000008AD000-memory.dmp

Filesize
4.7MB

Download
memory/4436-53-0x0000000000400000-0x00000000008AD000-memory.dmp

Filesize
4.7MB

Download
memory/5000-5-0x0000000000400000-0x0000000002B1D000-memory.dmp

Filesize
39.1MB

Download
memory/5000-32-0x0000000004850000-0x00000000048BC000-memory.dmp

Filesize
432KB

Download
memory/5000-1-0x0000000002BC0000-0x0000000002CC0000-memory.dmp

Filesize
1024KB

Download
memory/5000-33-0x0000000000400000-0x000000000046F000-memory.dmp

Filesize
444KB

Download
memory/5000-2-0x0000000004850000-0x00000000048BC000-memory.dmp

Filesize
432KB

Download
memory/5000-3-0x0000000000400000-0x000000000046F000-memory.dmp

Filesize
444KB

Download
memory/5000-31-0x0000000000400000-0x0000000002B1D000-memory.dmp

Filesize
39.1MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads