stealc | 41f18edbe2ab7b4c47563d7e6d271911e9a2c4b11b97d03a63b7be0bb7bbf045

Analysis

max time kernel
149s
max time network
155s
platform
windows11-21h2_x64
resource
win11-20240221-en
resource tags

arch:x64arch:x86image:win11-20240221-enlocale:en-usos:windows11-21h2-x64system
submitted
01-04-2024 09:34

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General

Target

41f18edbe2ab7b4c47563d7e6d271911e9a2c4b11b97d03a63b7be0bb7bbf045.exe
Size

409KB
MD5

5722a79e15aba6244e3fc37ff79626b3
SHA1

e1e1811197f2eb586c35a8c808cae388d68cbc29
SHA256

41f18edbe2ab7b4c47563d7e6d271911e9a2c4b11b97d03a63b7be0bb7bbf045
SHA512

257f13184462992d8f00fc2cc47a590243cf040a50d48f52bd7362b33a0d102ec36f22f84bbdcbcc1460a3f4a5545acf0e3854266482dae09333d781c377efb4
SSDEEP

6144:07SHUo6LpD726DEVLunVQ3MUkmIp7dnMEpA7sCmD0AiV:0eHUo6F/2iHVQ8UkmIpxMECmI5V

Score

10^/10

stealc zgrat discovery rat spyware stealer

Malware Config

Signatures

Detect ZGRat V1 3 IoCs

resource	yara_rule
behavioral2/memory/4484-165-0x00000180DD0B0000-0x00000180E09A8000-memory.dmp	family_zgrat_v1
behavioral2/memory/4484-167-0x00000180FB0D0000-0x00000180FB1E0000-memory.dmp	family_zgrat_v1
behavioral2/memory/4484-171-0x00000180FB1E0000-0x00000180FB204000-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
2020	u1j8.0.exe
4708	u1j8.1.exe
3092	HJEBGHIEBF.exe

Loads dropped DLL 2 IoCs

pid	Process
2020	u1j8.0.exe
2020	u1j8.0.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
4388	1988	WerFault.exe	78
1484	2020	WerFault.exe	80

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	u1j8.1.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	u1j8.1.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	u1j8.1.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	u1j8.0.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	u1j8.0.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4436	PING.EXE

Suspicious behavior: EnumeratesProcesses 25 IoCs

pid	Process
2020	u1j8.0.exe
2020	u1j8.0.exe
2020	u1j8.0.exe
2020	u1j8.0.exe
4484	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
4484	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
4484	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
4484	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
4484	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
4484	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
4484	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
4484	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
4484	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
4484	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
4484	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
4484	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
4484	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
4484	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
4484	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
4484	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
4484	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
4484	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
4484	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
4484	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
4484	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4484	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe

Suspicious use of FindShellTrayWindow 7 IoCs

pid	Process
4708	u1j8.1.exe
4708	u1j8.1.exe
4708	u1j8.1.exe
4708	u1j8.1.exe
4708	u1j8.1.exe
4708	u1j8.1.exe
4708	u1j8.1.exe

Suspicious use of SendNotifyMessage 7 IoCs

pid	Process
4708	u1j8.1.exe
4708	u1j8.1.exe
4708	u1j8.1.exe
4708	u1j8.1.exe
4708	u1j8.1.exe
4708	u1j8.1.exe
4708	u1j8.1.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 1988 wrote to memory of 2020	1988	41f18edbe2ab7b4c47563d7e6d271911e9a2c4b11b97d03a63b7be0bb7bbf045.exe	80
PID 1988 wrote to memory of 2020	1988	41f18edbe2ab7b4c47563d7e6d271911e9a2c4b11b97d03a63b7be0bb7bbf045.exe	80
PID 1988 wrote to memory of 2020	1988	41f18edbe2ab7b4c47563d7e6d271911e9a2c4b11b97d03a63b7be0bb7bbf045.exe	80
PID 1988 wrote to memory of 4708	1988	41f18edbe2ab7b4c47563d7e6d271911e9a2c4b11b97d03a63b7be0bb7bbf045.exe	83
PID 1988 wrote to memory of 4708	1988	41f18edbe2ab7b4c47563d7e6d271911e9a2c4b11b97d03a63b7be0bb7bbf045.exe	83
PID 1988 wrote to memory of 4708	1988	41f18edbe2ab7b4c47563d7e6d271911e9a2c4b11b97d03a63b7be0bb7bbf045.exe	83
PID 2020 wrote to memory of 1120	2020	u1j8.0.exe	88
PID 2020 wrote to memory of 1120	2020	u1j8.0.exe	88
PID 2020 wrote to memory of 1120	2020	u1j8.0.exe	88
PID 1120 wrote to memory of 3092	1120	cmd.exe	92
PID 1120 wrote to memory of 3092	1120	cmd.exe	92
PID 1120 wrote to memory of 3092	1120	cmd.exe	92
PID 3092 wrote to memory of 4680	3092	HJEBGHIEBF.exe	93
PID 3092 wrote to memory of 4680	3092	HJEBGHIEBF.exe	93
PID 3092 wrote to memory of 4680	3092	HJEBGHIEBF.exe	93
PID 4680 wrote to memory of 4436	4680	cmd.exe	95
PID 4680 wrote to memory of 4436	4680	cmd.exe	95
PID 4680 wrote to memory of 4436	4680	cmd.exe	95
PID 4708 wrote to memory of 4484	4708	u1j8.1.exe	96
PID 4708 wrote to memory of 4484	4708	u1j8.1.exe	96

C:\Users\Admin\AppData\Local\Temp\41f18edbe2ab7b4c47563d7e6d271911e9a2c4b11b97d03a63b7be0bb7bbf045.exe
"C:\Users\Admin\AppData\Local\Temp\41f18edbe2ab7b4c47563d7e6d271911e9a2c4b11b97d03a63b7be0bb7bbf045.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1988
- C:\Users\Admin\AppData\Local\Temp\u1j8.0.exe
  "C:\Users\Admin\AppData\Local\Temp\u1j8.0.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2020
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\HJEBGHIEBF.exe"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1120
  - - C:\Users\Admin\AppData\Local\Temp\HJEBGHIEBF.exe
      "C:\Users\Admin\AppData\Local\Temp\HJEBGHIEBF.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of WriteProcessMemory
      PID:3092
    - - C:\Windows\SysWOW64\cmd.exe
        
        "C:\Windows\System32\cmd.exe" /C ping 2.2.2.2 -n 1 -w 3000 > Nul & Del C:\Users\Admin\AppData\Local\Temp\HJEBGHIEBF.exe
        5⤵
        Suspicious use of WriteProcessMemory
        
        PID:4680
      - C:\Windows\SysWOW64\PING.EXE
        
        ping 2.2.2.2 -n 1 -w 3000
        6⤵
        Runs ping.exe
        
        PID:4436
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2020 -s 2424
    3⤵
    - Program crash
    PID:1484
- C:\Users\Admin\AppData\Local\Temp\u1j8.1.exe
  "C:\Users\Admin\AppData\Local\Temp\u1j8.1.exe"
  2⤵
  - Executes dropped EXE
  - Checks SCSI registry key(s)
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:4708
- - 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:4484
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1988 -s 1520
  2⤵
  - Program crash
  PID:4388

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 1988 -ip 1988
1⤵
PID:3224

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 2020 -ip 2020
1⤵
PID:2012

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

Remote System Discovery

T1018

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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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\HJEBGHIEBF.exe

Filesize
106KB

MD5
fe380780b5c35bd6d54541791151c2be

SHA1
7fe3a583cf91474c733f85cebf3c857682e269e1

SHA256
b64a84d1f88e4e78464a1901c1cb5bbd5f00bb73203d719e64e072157a087b53

SHA512
ba05ba8aa13c4bc1cf98fbf6c08b021e8b19354098e0397fc8e1e5d3dcce367c1063203f24e50d0973193f6535681d0a43486e5dade5d112853b7a2fe8739b6c

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

Filesize
2KB

MD5
3a3b71a1f3ca2e2f22c33a0566898880

SHA1
3e12003dc95a7ca6d61073304c9cf820bc21937f

SHA256
7444878f572a81572e01bc3afc05d43bf197db173a95418cdfade7efeca73ea6

SHA512
c9f4ef5ddbab0bbb22096f717b7efda057152ce3577c3e8b3be4dc20ab72faaf24dbd5f0581adbca3b77c0177f6a6961431cf5f5b40e3e2bac98b0367d258332

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

Filesize
3KB

MD5
0caafba5d82d91e27ce16842108d5b18

SHA1
5bdb38b6d9c95ead81bd5fe6ea7185296b82c140

SHA256
ac9018b21e8a12409b9c4628e21fc81073b0123dc4059571fe4360bb0151f0e0

SHA512
802f23eeec18f45a546fc2e54d0ab32237266f37e6170f0da1f5a48b350a24d2b063d4bea0073f27202cca2ac82035a4f3a9734a4e6c5abda62ec30a67021274

Download Submit
C:\Users\Admin\AppData\Local\Temp\u1j8.0.exe

Filesize
268KB

MD5
5feabcf3cc39368fb12cd39322aad004

SHA1
b599cd63b1830fdc876b8426d2e22bc3b00140ac

SHA256
9b2932f4f69c96f1a87361370da805ee6dd99476db6c8b43a1424be178da3fd7

SHA512
0eead7b57ad3eead70a4296b4868170dbb48f69b9ad59dfb3539a91649fd229b19a97474c744092ab38d3c2d158bd922502c778766b876559d57f4099a1b9853

Download Submit
C:\Users\Admin\AppData\Local\Temp\u1j8.1.exe

Filesize
4.6MB

MD5
397926927bca55be4a77839b1c44de6e

SHA1
e10f3434ef3021c399dbba047832f02b3c898dbd

SHA256
4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

SHA512
cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

Download Submit
memory/1988-78-0x0000000000400000-0x0000000002D65000-memory.dmp

Filesize
41.4MB

Download
memory/1988-1-0x0000000002F00000-0x0000000003000000-memory.dmp

Filesize
1024KB

Download
memory/1988-2-0x0000000004BC0000-0x0000000004C2C000-memory.dmp

Filesize
432KB

Download
memory/1988-82-0x0000000004BC0000-0x0000000004C2C000-memory.dmp

Filesize
432KB

Download
memory/1988-3-0x0000000000400000-0x0000000002D65000-memory.dmp

Filesize
41.4MB

Download
memory/2020-16-0x0000000003110000-0x0000000003210000-memory.dmp

Filesize
1024KB

Download
memory/2020-17-0x00000000030C0000-0x00000000030E7000-memory.dmp

Filesize
156KB

Download
memory/2020-18-0x0000000000400000-0x0000000002D42000-memory.dmp

Filesize
41.3MB

Download
memory/2020-136-0x0000000000400000-0x0000000002D42000-memory.dmp

Filesize
41.3MB

Download
memory/2020-30-0x0000000061E00000-0x0000000061EF3000-memory.dmp

Filesize
972KB

Download
memory/2020-148-0x0000000000400000-0x0000000002D42000-memory.dmp

Filesize
41.3MB

Download
memory/3092-144-0x0000000000D80000-0x0000000000DA0000-memory.dmp

Filesize
128KB

Download
memory/3092-145-0x0000000071900000-0x00000000720B1000-memory.dmp

Filesize
7.7MB

Download
memory/3092-146-0x00000000058F0000-0x0000000005900000-memory.dmp

Filesize
64KB

Download
memory/3092-150-0x0000000071900000-0x00000000720B1000-memory.dmp

Filesize
7.7MB

Download
memory/4484-166-0x00000180FAFD0000-0x00000180FAFE0000-memory.dmp

Filesize
64KB

Download
memory/4484-178-0x00000180FAE60000-0x00000180FAE6A000-memory.dmp

Filesize
40KB

Download
memory/4484-203-0x00000180FAFD0000-0x00000180FAFE0000-memory.dmp

Filesize
64KB

Download
memory/4484-164-0x00007FFDA7AD0000-0x00007FFDA8592000-memory.dmp

Filesize
10.8MB

Download
memory/4484-165-0x00000180DD0B0000-0x00000180E09A8000-memory.dmp

Filesize
57.0MB

Download
memory/4484-202-0x00000180FAFD0000-0x00000180FAFE0000-memory.dmp

Filesize
64KB

Download
memory/4484-167-0x00000180FB0D0000-0x00000180FB1E0000-memory.dmp

Filesize
1.1MB

Download
memory/4484-168-0x00000180E0F40000-0x00000180E0F50000-memory.dmp

Filesize
64KB

Download
memory/4484-169-0x00000180FAE90000-0x00000180FAE9C000-memory.dmp

Filesize
48KB

Download
memory/4484-170-0x00000180FAE80000-0x00000180FAE94000-memory.dmp

Filesize
80KB

Download
memory/4484-171-0x00000180FB1E0000-0x00000180FB204000-memory.dmp

Filesize
144KB

Download
memory/4484-172-0x00000180FB200000-0x00000180FB20A000-memory.dmp

Filesize
40KB

Download
memory/4484-173-0x00000180FB3C0000-0x00000180FB472000-memory.dmp

Filesize
712KB

Download
memory/4484-174-0x00000180FB470000-0x00000180FB49A000-memory.dmp

Filesize
168KB

Download
memory/4484-175-0x00000180FB4A0000-0x00000180FB51A000-memory.dmp

Filesize
488KB

Download
memory/4484-176-0x00000180FB520000-0x00000180FB582000-memory.dmp

Filesize
392KB

Download
memory/4484-177-0x00000180FB600000-0x00000180FB676000-memory.dmp

Filesize
472KB

Download
memory/4484-201-0x00000180FAFD0000-0x00000180FAFE0000-memory.dmp

Filesize
64KB

Download
memory/4484-182-0x00000180FB680000-0x00000180FB980000-memory.dmp

Filesize
3.0MB

Download
memory/4484-184-0x00000180FAFD0000-0x00000180FAFE0000-memory.dmp

Filesize
64KB

Download
memory/4484-185-0x00000180FF2F0000-0x00000180FF2F8000-memory.dmp

Filesize
32KB

Download
memory/4484-186-0x00000180FAFD0000-0x00000180FAFE0000-memory.dmp

Filesize
64KB

Download
memory/4484-187-0x00000180FFA00000-0x00000180FFA38000-memory.dmp

Filesize
224KB

Download
memory/4484-188-0x00000180FF300000-0x00000180FF30E000-memory.dmp

Filesize
56KB

Download
memory/4484-189-0x0000018080300000-0x000001808030A000-memory.dmp

Filesize
40KB

Download
memory/4484-190-0x0000018080310000-0x0000018080332000-memory.dmp

Filesize
136KB

Download
memory/4484-191-0x0000018080880000-0x0000018080DA8000-memory.dmp

Filesize
5.2MB

Download
memory/4484-194-0x00000180FFEC0000-0x00000180FFF10000-memory.dmp

Filesize
320KB

Download
memory/4484-195-0x0000018080330000-0x000001808033C000-memory.dmp

Filesize
48KB

Download
memory/4484-196-0x00000180FF9C0000-0x00000180FF9E2000-memory.dmp

Filesize
136KB

Download
memory/4484-197-0x00000180FFA40000-0x00000180FFA5E000-memory.dmp

Filesize
120KB

Download
memory/4484-199-0x00007FFDA7AD0000-0x00007FFDA8592000-memory.dmp

Filesize
10.8MB

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memory/4484-200-0x00000180FAFD0000-0x00000180FAFE0000-memory.dmp

Filesize
64KB

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memory/4708-143-0x0000000000400000-0x00000000008AD000-memory.dmp

Filesize
4.7MB

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memory/4708-40-0x00000000029A0000-0x00000000029A1000-memory.dmp

Filesize
4KB

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memory/4708-162-0x0000000000400000-0x00000000008AD000-memory.dmp

Filesize
4.7MB

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