stealc | ecea04acbe0a9d3c34e25dce92339db5ebc4006ea461ea1b44cbcbeda0e74af2

Analysis

max time kernel
149s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
09/05/2024, 00:14

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General

Target

ecea04acbe0a9d3c34e25dce92339db5ebc4006ea461ea1b44cbcbeda0e74af2.exe
Size

364KB
MD5

6adfa7bcac8caec6d3022645fe7a33a5
SHA1

e04fb84ac0ad062e04a2b5478b0cc44225744aef
SHA256

ecea04acbe0a9d3c34e25dce92339db5ebc4006ea461ea1b44cbcbeda0e74af2
SHA512

b1c61fc4421491f3986858f9f97bee0ac0346f3c283df47f9d32532f120c26aee87051525bdc97383ebe10de3d4bf7b960e11f28d44cdd7230386aacad1fd33c
SSDEEP

6144:aEToWW+sKejNKsTbTpfSl2JyRVc6TI2DNJeTNPcOlE/r1EHSRKYTpWF:awot+LKwy/pfSl2Jy7fTPNopJya6tpWF

Score

10^/10

stealc zgrat discovery rat 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/3068-68-0x000001A591570000-0x000001A594DA4000-memory.dmp	family_zgrat_v1
behavioral1/memory/3068-69-0x000001A5B0DF0000-0x000001A5B0EFA000-memory.dmp	family_zgrat_v1
behavioral1/memory/3068-73-0x000001A596B70000-0x000001A596B94000-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-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation	ecea04acbe0a9d3c34e25dce92339db5ebc4006ea461ea1b44cbcbeda0e74af2.exe
Key value queried	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation	u128.1.exe

Executes dropped EXE 2 IoCs

pid	Process
4548	u128.0.exe
1516	u128.1.exe

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
4020	1376	WerFault.exe	79
2720	4548	WerFault.exe	82

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	u128.1.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	u128.1.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	u128.1.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	u128.0.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	u128.0.exe

Suspicious behavior: EnumeratesProcesses 21 IoCs

pid	Process
3068	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3068	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3068	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3068	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3068	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3068	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3068	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3068	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3068	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3068	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3068	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3068	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3068	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3068	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3068	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3068	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3068	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3068	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3068	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
4548	u128.0.exe
4548	u128.0.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3068	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe

Suspicious use of FindShellTrayWindow 7 IoCs

pid	Process
1516	u128.1.exe
1516	u128.1.exe
1516	u128.1.exe
1516	u128.1.exe
1516	u128.1.exe
1516	u128.1.exe
1516	u128.1.exe

Suspicious use of SendNotifyMessage 7 IoCs

pid	Process
1516	u128.1.exe
1516	u128.1.exe
1516	u128.1.exe
1516	u128.1.exe
1516	u128.1.exe
1516	u128.1.exe
1516	u128.1.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1376 wrote to memory of 4548	1376	ecea04acbe0a9d3c34e25dce92339db5ebc4006ea461ea1b44cbcbeda0e74af2.exe	82
PID 1376 wrote to memory of 4548	1376	ecea04acbe0a9d3c34e25dce92339db5ebc4006ea461ea1b44cbcbeda0e74af2.exe	82
PID 1376 wrote to memory of 4548	1376	ecea04acbe0a9d3c34e25dce92339db5ebc4006ea461ea1b44cbcbeda0e74af2.exe	82
PID 1376 wrote to memory of 1516	1376	ecea04acbe0a9d3c34e25dce92339db5ebc4006ea461ea1b44cbcbeda0e74af2.exe	84
PID 1376 wrote to memory of 1516	1376	ecea04acbe0a9d3c34e25dce92339db5ebc4006ea461ea1b44cbcbeda0e74af2.exe	84
PID 1376 wrote to memory of 1516	1376	ecea04acbe0a9d3c34e25dce92339db5ebc4006ea461ea1b44cbcbeda0e74af2.exe	84
PID 1516 wrote to memory of 3068	1516	u128.1.exe	89
PID 1516 wrote to memory of 3068	1516	u128.1.exe	89

C:\Users\Admin\AppData\Local\Temp\ecea04acbe0a9d3c34e25dce92339db5ebc4006ea461ea1b44cbcbeda0e74af2.exe
"C:\Users\Admin\AppData\Local\Temp\ecea04acbe0a9d3c34e25dce92339db5ebc4006ea461ea1b44cbcbeda0e74af2.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1376
- C:\Users\Admin\AppData\Local\Temp\u128.0.exe
  "C:\Users\Admin\AppData\Local\Temp\u128.0.exe"
  2⤵
  - Executes dropped EXE
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  PID:4548
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4548 -s 1264
    3⤵
    - Program crash
    PID:2720
- C:\Users\Admin\AppData\Local\Temp\u128.1.exe
  "C:\Users\Admin\AppData\Local\Temp\u128.1.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:1516
- - 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:3068
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1376 -s 1524
  2⤵
  - Program crash
  PID:4020

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 1376 -ip 1376
1⤵
PID:5016

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4548 -ip 4548
1⤵
PID:5108

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\iolo\dm\ioloDMLog.txt

Filesize
3KB

MD5
df36f0b54188ccd397e647d24f8cec0b

SHA1
da6be74affba817432258781397bb75c771c48c3

SHA256
82384dfdd865910431fcfe1ae13369a89f5eede9258d3745041ebc963173e533

SHA512
c1106427d07e9ae71c2305d41851d82cd7761bab81a04ce660cf6cc24837f3509e33b5fd2312e38eb014dc06d4f9b5a3d7bc06bbb90cf8b4699b6a2ce2a888be

Download Submit
C:\Users\Admin\AppData\Local\Temp\u128.0.exe

Filesize
223KB

MD5
816cbc57fc20eb01645497ed35bdeb19

SHA1
3222b725c5031a12b310ef8c1b8bb120b345c80e

SHA256
c15c3a1a771770d1f3a838cdb6d0fcffea562e42d118b37087dd6022fff13c53

SHA512
2bf23ac407844682107c68705e0ac072d7a8767f0c9a8c2bb913cc394e6c85bd22a7024c5253130f4a5b26a083e9518f2d4f21b775da6d2812ab808587aa399e

Download Submit
C:\Users\Admin\AppData\Local\Temp\u128.1.exe

Filesize
4.6MB

MD5
397926927bca55be4a77839b1c44de6e

SHA1
e10f3434ef3021c399dbba047832f02b3c898dbd

SHA256
4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

SHA512
cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

Download Submit
memory/1376-2-0x0000000002710000-0x000000000277C000-memory.dmp

Filesize
432KB

Download
memory/1376-3-0x0000000000400000-0x000000000046F000-memory.dmp

Filesize
444KB

Download
memory/1376-1-0x0000000002790000-0x0000000002890000-memory.dmp

Filesize
1024KB

Download
memory/1376-28-0x0000000000400000-0x0000000002597000-memory.dmp

Filesize
33.6MB

Download
memory/1376-37-0x0000000002710000-0x000000000277C000-memory.dmp

Filesize
432KB

Download
memory/1376-38-0x0000000000400000-0x000000000046F000-memory.dmp

Filesize
444KB

Download
memory/1516-54-0x0000000000400000-0x00000000008AD000-memory.dmp

Filesize
4.7MB

Download
memory/1516-67-0x0000000000400000-0x00000000008AD000-memory.dmp

Filesize
4.7MB

Download
memory/3068-73-0x000001A596B70000-0x000001A596B94000-memory.dmp

Filesize
144KB

Download
memory/3068-79-0x000001A596BC0000-0x000001A596BCA000-memory.dmp

Filesize
40KB

Download
memory/3068-97-0x000001A5B6380000-0x000001A5B639E000-memory.dmp

Filesize
120KB

Download
memory/3068-96-0x000001A5B6420000-0x000001A5B6496000-memory.dmp

Filesize
472KB

Download
memory/3068-68-0x000001A591570000-0x000001A594DA4000-memory.dmp

Filesize
56.2MB

Download
memory/3068-69-0x000001A5B0DF0000-0x000001A5B0EFA000-memory.dmp

Filesize
1.0MB

Download
memory/3068-70-0x000001A596AF0000-0x000001A596B00000-memory.dmp

Filesize
64KB

Download
memory/3068-71-0x000001A596B10000-0x000001A596B1C000-memory.dmp

Filesize
48KB

Download
memory/3068-72-0x000001A596B00000-0x000001A596B14000-memory.dmp

Filesize
80KB

Download
memory/3068-95-0x000001A5B6340000-0x000001A5B634C000-memory.dmp

Filesize
48KB

Download
memory/3068-74-0x000001A596BA0000-0x000001A596BAA000-memory.dmp

Filesize
40KB

Download
memory/3068-75-0x000001A5B0BE0000-0x000001A5B0C0A000-memory.dmp

Filesize
168KB

Download
memory/3068-76-0x000001A5B0C10000-0x000001A5B0CC2000-memory.dmp

Filesize
712KB

Download
memory/3068-77-0x000001A5B1090000-0x000001A5B10E0000-memory.dmp

Filesize
320KB

Download
memory/3068-78-0x000001A5B10E0000-0x000001A5B1102000-memory.dmp

Filesize
136KB

Download
memory/3068-92-0x000001A5B6B90000-0x000001A5B70B8000-memory.dmp

Filesize
5.2MB

Download
memory/3068-83-0x000001A5B1110000-0x000001A5B1410000-memory.dmp

Filesize
3.0MB

Download
memory/3068-85-0x000001A5B4DA0000-0x000001A5B4DA8000-memory.dmp

Filesize
32KB

Download
memory/3068-86-0x000001A5B54B0000-0x000001A5B54E8000-memory.dmp

Filesize
224KB

Download
memory/3068-87-0x000001A5B5470000-0x000001A5B547E000-memory.dmp

Filesize
56KB

Download
memory/3068-88-0x000001A5B5490000-0x000001A5B5498000-memory.dmp

Filesize
32KB

Download
memory/3068-89-0x000001A5B65C0000-0x000001A5B65CA000-memory.dmp

Filesize
40KB

Download
memory/3068-90-0x000001A5B65E0000-0x000001A5B6642000-memory.dmp

Filesize
392KB

Download
memory/3068-91-0x000001A5B6640000-0x000001A5B6662000-memory.dmp

Filesize
136KB

Download
memory/4548-15-0x0000000000400000-0x0000000002574000-memory.dmp

Filesize
33.5MB

Download
memory/4548-13-0x0000000000400000-0x0000000002574000-memory.dmp

Filesize
33.5MB

Download
memory/4548-14-0x0000000000400000-0x0000000002574000-memory.dmp

Filesize
33.5MB

Download
memory/4548-64-0x0000000000400000-0x0000000002574000-memory.dmp

Filesize
33.5MB

Download
memory/4548-101-0x0000000000400000-0x0000000002574000-memory.dmp

Filesize
33.5MB

Download
memory/4548-103-0x0000000000400000-0x0000000002574000-memory.dmp

Filesize
33.5MB

Download
memory/4548-105-0x0000000000400000-0x0000000002574000-memory.dmp

Filesize
33.5MB

Download