stealc | 0ce14fbc5ef3041bb5648e31274e8bfd9d7830a020a19d6781a51584b69a2c1f

Analysis

max time kernel
129s
max time network
131s
platform
windows11-21h2_x64
resource
win11-20240426-en
resource tags

arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system
submitted
09-05-2024 02:46

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General

Target

0ce14fbc5ef3041bb5648e31274e8bfd9d7830a020a19d6781a51584b69a2c1f.exe
Size

365KB
MD5

82590dc2e7e5eed612761099f117bb97
SHA1

9aa5c84228576ffc4974f3a8b16ce4bd067254ca
SHA256

0ce14fbc5ef3041bb5648e31274e8bfd9d7830a020a19d6781a51584b69a2c1f
SHA512

649ee5506c975adff87ab7cde07c2c5962ac20ef18cc2e598b695c537087b862c18cbd418c331fa503452d174bc86c53a7447317cf0d126250ea991f730da94c
SSDEEP

6144:1/yLAzjI3/kXehHDXHmlk+gdfmXHduMiFScdOVMJVGga06LNH4THWK:ZyLA/IPkXehHDXGnghm7YSUOVoVcVLNE

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
behavioral2/memory/3140-65-0x000001FF3A8A0000-0x000001FF3E0D4000-memory.dmp	family_zgrat_v1
behavioral2/memory/3140-66-0x000001FF588A0000-0x000001FF589AA000-memory.dmp	family_zgrat_v1
behavioral2/memory/3140-70-0x000001FF58820000-0x000001FF58844000-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
4796	u2mo.0.exe
1656	u2mo.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
500	3408	WerFault.exe	77
492	4796	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 enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	u2mo.1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	u2mo.1.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	u2mo.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	u2mo.0.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	u2mo.0.exe

Suspicious behavior: EnumeratesProcesses 23 IoCs

pid	Process
3140	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3140	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3140	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3140	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3140	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3140	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3140	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3140	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3140	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3140	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3140	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3140	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3140	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3140	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3140	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3140	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3140	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3140	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3140	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3140	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3140	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
4796	u2mo.0.exe
4796	u2mo.0.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3140	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe

Suspicious use of FindShellTrayWindow 7 IoCs

pid	Process
1656	u2mo.1.exe
1656	u2mo.1.exe
1656	u2mo.1.exe
1656	u2mo.1.exe
1656	u2mo.1.exe
1656	u2mo.1.exe
1656	u2mo.1.exe

Suspicious use of SendNotifyMessage 7 IoCs

pid	Process
1656	u2mo.1.exe
1656	u2mo.1.exe
1656	u2mo.1.exe
1656	u2mo.1.exe
1656	u2mo.1.exe
1656	u2mo.1.exe
1656	u2mo.1.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3408 wrote to memory of 4796	3408	0ce14fbc5ef3041bb5648e31274e8bfd9d7830a020a19d6781a51584b69a2c1f.exe	78
PID 3408 wrote to memory of 4796	3408	0ce14fbc5ef3041bb5648e31274e8bfd9d7830a020a19d6781a51584b69a2c1f.exe	78
PID 3408 wrote to memory of 4796	3408	0ce14fbc5ef3041bb5648e31274e8bfd9d7830a020a19d6781a51584b69a2c1f.exe	78
PID 3408 wrote to memory of 1656	3408	0ce14fbc5ef3041bb5648e31274e8bfd9d7830a020a19d6781a51584b69a2c1f.exe	81
PID 3408 wrote to memory of 1656	3408	0ce14fbc5ef3041bb5648e31274e8bfd9d7830a020a19d6781a51584b69a2c1f.exe	81
PID 3408 wrote to memory of 1656	3408	0ce14fbc5ef3041bb5648e31274e8bfd9d7830a020a19d6781a51584b69a2c1f.exe	81
PID 1656 wrote to memory of 3140	1656	u2mo.1.exe	86
PID 1656 wrote to memory of 3140	1656	u2mo.1.exe	86

C:\Users\Admin\AppData\Local\Temp\0ce14fbc5ef3041bb5648e31274e8bfd9d7830a020a19d6781a51584b69a2c1f.exe
"C:\Users\Admin\AppData\Local\Temp\0ce14fbc5ef3041bb5648e31274e8bfd9d7830a020a19d6781a51584b69a2c1f.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3408
- C:\Users\Admin\AppData\Local\Temp\u2mo.0.exe
  "C:\Users\Admin\AppData\Local\Temp\u2mo.0.exe"
  2⤵
  - Executes dropped EXE
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  PID:4796
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4796 -s 1388
    3⤵
    - Program crash
    PID:492
- C:\Users\Admin\AppData\Local\Temp\u2mo.1.exe
  "C:\Users\Admin\AppData\Local\Temp\u2mo.1.exe"
  2⤵
  - Executes dropped EXE
  - Checks SCSI registry key(s)
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:1656
- - 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:3140
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3408 -s 1512
  2⤵
  - Program crash
  PID:500

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3408 -ip 3408
1⤵
PID:4832

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 500 -p 4796 -ip 4796
1⤵
PID:1676

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
693cfa59b741b0985ff9cb48a35f1a32

SHA1
2a6f76616364c73efaaea259185a46343a2e32a8

SHA256
f6028dd81e1620d8df3469b895360abc646462bc6d17381d62ee31d5be160e6e

SHA512
dca49a4b98477e76cefa8e3521418028e282aae1153a3c6e168782a1247f29a89e265fe90ce7e66bb8ab67bf3e69a56e7b35651c2bff882fbdbf4aff2990083d

Download Submit
C:\Users\Admin\AppData\Local\Temp\u2mo.0.exe

Filesize
223KB

MD5
8a9a1b742b75353c203f733b24d071ff

SHA1
1e390f6625abeaf1b8155ed4a356547047429c01

SHA256
ab5504a33a8bc3ac59151aa8c10e03600eca853df87a8080e3fdff8b0dc409f1

SHA512
df684e2538811b4c71df55493502bf6736a419ea61e45bac6f40e9efd6504e19a214382ac2ab692c082dff69923124df54e3a820529e7c2ddf5e962fdf5ea78d

Download Submit
C:\Users\Admin\AppData\Local\Temp\u2mo.1.exe

Filesize
4.6MB

MD5
397926927bca55be4a77839b1c44de6e

SHA1
e10f3434ef3021c399dbba047832f02b3c898dbd

SHA256
4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

SHA512
cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

Download Submit
memory/1656-64-0x0000000000400000-0x00000000008AD000-memory.dmp

Filesize
4.7MB

Download
memory/1656-51-0x0000000000400000-0x00000000008AD000-memory.dmp

Filesize
4.7MB

Download
memory/3140-71-0x000001FF58850000-0x000001FF5885A000-memory.dmp

Filesize
40KB

Download
memory/3140-75-0x000001FF58C10000-0x000001FF58C32000-memory.dmp

Filesize
136KB

Download
memory/3140-94-0x000001FF5D7E0000-0x000001FF5D7FE000-memory.dmp

Filesize
120KB

Download
memory/3140-93-0x000001FF5D880000-0x000001FF5D8F6000-memory.dmp

Filesize
472KB

Download
memory/3140-92-0x000001FF5D720000-0x000001FF5D72C000-memory.dmp

Filesize
48KB

Download
memory/3140-89-0x000001FF5DEE0000-0x000001FF5E408000-memory.dmp

Filesize
5.2MB

Download
memory/3140-88-0x000001FF5D790000-0x000001FF5D7B2000-memory.dmp

Filesize
136KB

Download
memory/3140-65-0x000001FF3A8A0000-0x000001FF3E0D4000-memory.dmp

Filesize
56.2MB

Download
memory/3140-66-0x000001FF588A0000-0x000001FF589AA000-memory.dmp

Filesize
1.0MB

Download
memory/3140-68-0x000001FF587C0000-0x000001FF587CC000-memory.dmp

Filesize
48KB

Download
memory/3140-67-0x000001FF3E560000-0x000001FF3E570000-memory.dmp

Filesize
64KB

Download
memory/3140-69-0x000001FF587A0000-0x000001FF587B4000-memory.dmp

Filesize
80KB

Download
memory/3140-70-0x000001FF58820000-0x000001FF58844000-memory.dmp

Filesize
144KB

Download
memory/3140-73-0x000001FF58B30000-0x000001FF58BE2000-memory.dmp

Filesize
712KB

Download
memory/3140-72-0x000001FF58B00000-0x000001FF58B2A000-memory.dmp

Filesize
168KB

Download
memory/3140-86-0x000001FF5D9A0000-0x000001FF5D9AA000-memory.dmp

Filesize
40KB

Download
memory/3140-74-0x000001FF58C40000-0x000001FF58C90000-memory.dmp

Filesize
320KB

Download
memory/3140-87-0x000001FF5D730000-0x000001FF5D792000-memory.dmp

Filesize
392KB

Download
memory/3140-76-0x000001FF58860000-0x000001FF5886A000-memory.dmp

Filesize
40KB

Download
memory/3140-80-0x000001FF58C90000-0x000001FF58F90000-memory.dmp

Filesize
3.0MB

Download
memory/3140-82-0x000001FF5D6F0000-0x000001FF5D6F8000-memory.dmp

Filesize
32KB

Download
memory/3140-84-0x000001FF5D000000-0x000001FF5D00E000-memory.dmp

Filesize
56KB

Download
memory/3140-83-0x000001FF5D030000-0x000001FF5D068000-memory.dmp

Filesize
224KB

Download
memory/3140-85-0x000001FF5D020000-0x000001FF5D028000-memory.dmp

Filesize
32KB

Download
memory/3408-1-0x00000000028B0000-0x00000000029B0000-memory.dmp

Filesize
1024KB

Download
memory/3408-3-0x0000000000400000-0x000000000046F000-memory.dmp

Filesize
444KB

Download
memory/3408-2-0x0000000002830000-0x000000000289C000-memory.dmp

Filesize
432KB

Download
memory/3408-29-0x0000000000400000-0x0000000002597000-memory.dmp

Filesize
33.6MB

Download
memory/3408-30-0x0000000000400000-0x000000000046F000-memory.dmp

Filesize
444KB

Download
memory/4796-14-0x0000000000400000-0x0000000002574000-memory.dmp

Filesize
33.5MB

Download
memory/4796-13-0x0000000000400000-0x0000000002574000-memory.dmp

Filesize
33.5MB

Download
memory/4796-96-0x0000000000400000-0x0000000002574000-memory.dmp

Filesize
33.5MB

Download
memory/4796-99-0x0000000000400000-0x0000000002574000-memory.dmp

Filesize
33.5MB

Download
memory/4796-101-0x0000000000400000-0x0000000002574000-memory.dmp

Filesize
33.5MB

Download
memory/4796-103-0x0000000000400000-0x0000000002574000-memory.dmp

Filesize
33.5MB

Download