stealc | 7b96f0464fe63f01e484646b7162c2fd2aff73150a4019617ecd6dbfacd88de1

General

Target

7b96f0464fe63f01e484646b7162c2fd2aff73150a4019617ecd6dbfacd88de1.exe
Size

364KB
MD5

f2c52fd4e39353dba989ab7ce78b2bd2
SHA1

6d18e63c3ac5e7fec2bd6d28f96837667dc325b6
SHA256

7b96f0464fe63f01e484646b7162c2fd2aff73150a4019617ecd6dbfacd88de1
SHA512

f1462830f814c9d9ca5c8a4f75cdae5e45be25cca191dcdf94ad4b91726440a4c3d82ce141d54b36bab9f584d0701c569ac4c32e46a70e4512bb0648ae5abdbd
SSDEEP

6144:aEToWW+sKejNKsTbTpfSl2JyRVc6TI2DNJeTNPcOlE/r1EHSRKYTpWK:awot+LKwy/pfSl2Jy7fTPNopJya6tpWK

Score

10^/10

stealc zgrat discovery rat 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/556-64-0x0000026EF4880000-0x0000026EF80B4000-memory.dmp	family_zgrat_v1
behavioral2/memory/556-65-0x0000026EFA960000-0x0000026EFAA6A000-memory.dmp	family_zgrat_v1
behavioral2/memory/556-69-0x0000026EFA710000-0x0000026EFA734000-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
1624	u3tw.0.exe
4360	u3tw.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
4024	4964	WerFault.exe	78
3428	1624	WerFault.exe	81

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	u3tw.1.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	u3tw.1.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	u3tw.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	u3tw.0.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	u3tw.0.exe

Suspicious behavior: EnumeratesProcesses 23 IoCs

pid	Process
556	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
556	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
556	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
556	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
556	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
556	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
556	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
556	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
556	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
556	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
556	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
556	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
556	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
556	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
556	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
556	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
556	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
556	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
556	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
556	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
556	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1624	u3tw.0.exe
1624	u3tw.0.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	556	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe

Suspicious use of FindShellTrayWindow 7 IoCs

pid	Process
4360	u3tw.1.exe
4360	u3tw.1.exe
4360	u3tw.1.exe
4360	u3tw.1.exe
4360	u3tw.1.exe
4360	u3tw.1.exe
4360	u3tw.1.exe

Suspicious use of SendNotifyMessage 7 IoCs

pid	Process
4360	u3tw.1.exe
4360	u3tw.1.exe
4360	u3tw.1.exe
4360	u3tw.1.exe
4360	u3tw.1.exe
4360	u3tw.1.exe
4360	u3tw.1.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4964 wrote to memory of 1624	4964	7b96f0464fe63f01e484646b7162c2fd2aff73150a4019617ecd6dbfacd88de1.exe	81
PID 4964 wrote to memory of 1624	4964	7b96f0464fe63f01e484646b7162c2fd2aff73150a4019617ecd6dbfacd88de1.exe	81
PID 4964 wrote to memory of 1624	4964	7b96f0464fe63f01e484646b7162c2fd2aff73150a4019617ecd6dbfacd88de1.exe	81
PID 4964 wrote to memory of 4360	4964	7b96f0464fe63f01e484646b7162c2fd2aff73150a4019617ecd6dbfacd88de1.exe	84
PID 4964 wrote to memory of 4360	4964	7b96f0464fe63f01e484646b7162c2fd2aff73150a4019617ecd6dbfacd88de1.exe	84
PID 4964 wrote to memory of 4360	4964	7b96f0464fe63f01e484646b7162c2fd2aff73150a4019617ecd6dbfacd88de1.exe	84
PID 4360 wrote to memory of 556	4360	u3tw.1.exe	89
PID 4360 wrote to memory of 556	4360	u3tw.1.exe	89

C:\Users\Admin\AppData\Local\Temp\7b96f0464fe63f01e484646b7162c2fd2aff73150a4019617ecd6dbfacd88de1.exe
"C:\Users\Admin\AppData\Local\Temp\7b96f0464fe63f01e484646b7162c2fd2aff73150a4019617ecd6dbfacd88de1.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4964
- C:\Users\Admin\AppData\Local\Temp\u3tw.0.exe
  "C:\Users\Admin\AppData\Local\Temp\u3tw.0.exe"
  2⤵
  - Executes dropped EXE
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  PID:1624
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1624 -s 1416
    3⤵
    - Program crash
    PID:3428
- C:\Users\Admin\AppData\Local\Temp\u3tw.1.exe
  "C:\Users\Admin\AppData\Local\Temp\u3tw.1.exe"
  2⤵
  - Executes dropped EXE
  - Checks SCSI registry key(s)
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:4360
- - 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:556
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4964 -s 1540
  2⤵
  - Program crash
  PID:4024

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 4964 -ip 4964
1⤵
PID:2388

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 1624 -ip 1624
1⤵
PID:2576

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

3

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
3KB

MD5
855f054e09796338e407a0f655fcf6e0

SHA1
d98507e984bbe6d315325c212856efbf80d8e097

SHA256
208ea5ad313ff9aece3bb3cf9297e133b08ce2fa5a4d38f955921d270cb007e0

SHA512
96891e7134ffe144031c72d83b09ad1ea1101d5e854ba394b65d8c263d179165ab487aca5b81e7ba6f427407b6a397a02697db6184084d80a93cd64c3c1673fd

Download Submit
C:\Users\Admin\AppData\Local\Temp\u3tw.0.exe

Filesize
223KB

MD5
816cbc57fc20eb01645497ed35bdeb19

SHA1
3222b725c5031a12b310ef8c1b8bb120b345c80e

SHA256
c15c3a1a771770d1f3a838cdb6d0fcffea562e42d118b37087dd6022fff13c53

SHA512
2bf23ac407844682107c68705e0ac072d7a8767f0c9a8c2bb913cc394e6c85bd22a7024c5253130f4a5b26a083e9518f2d4f21b775da6d2812ab808587aa399e

Download Submit
C:\Users\Admin\AppData\Local\Temp\u3tw.1.exe

Filesize
4.6MB

MD5
397926927bca55be4a77839b1c44de6e

SHA1
e10f3434ef3021c399dbba047832f02b3c898dbd

SHA256
4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

SHA512
cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

Download Submit
memory/556-72-0x0000026EFA780000-0x0000026EFA7AA000-memory.dmp

Filesize
168KB

Download
memory/556-86-0x0000026E985A0000-0x0000026E98602000-memory.dmp

Filesize
392KB

Download
memory/556-74-0x0000026EFA8F0000-0x0000026EFA912000-memory.dmp

Filesize
136KB

Download
memory/556-73-0x0000026EFAC70000-0x0000026EFACC0000-memory.dmp

Filesize
320KB

Download
memory/556-93-0x0000026EFF040000-0x0000026EFF05E000-memory.dmp

Filesize
120KB

Download
memory/556-92-0x0000026EFF4C0000-0x0000026EFF536000-memory.dmp

Filesize
472KB

Download
memory/556-91-0x0000026E98320000-0x0000026E9832C000-memory.dmp

Filesize
48KB

Download
memory/556-88-0x0000026E98B30000-0x0000026E99058000-memory.dmp

Filesize
5.2MB

Download
memory/556-87-0x0000026E98300000-0x0000026E98322000-memory.dmp

Filesize
136KB

Download
memory/556-64-0x0000026EF4880000-0x0000026EF80B4000-memory.dmp

Filesize
56.2MB

Download
memory/556-65-0x0000026EFA960000-0x0000026EFAA6A000-memory.dmp

Filesize
1.0MB

Download
memory/556-67-0x0000026EF8610000-0x0000026EF861C000-memory.dmp

Filesize
48KB

Download
memory/556-66-0x0000026EF85C0000-0x0000026EF85D0000-memory.dmp

Filesize
64KB

Download
memory/556-68-0x0000026EF8600000-0x0000026EF8614000-memory.dmp

Filesize
80KB

Download
memory/556-69-0x0000026EFA710000-0x0000026EFA734000-memory.dmp

Filesize
144KB

Download
memory/556-70-0x0000026EFA730000-0x0000026EFA73A000-memory.dmp

Filesize
40KB

Download
memory/556-71-0x0000026EFABC0000-0x0000026EFAC72000-memory.dmp

Filesize
712KB

Download
memory/556-85-0x0000026E98580000-0x0000026E9858A000-memory.dmp

Filesize
40KB

Download
memory/556-84-0x0000026EFEFD0000-0x0000026EFEFD8000-memory.dmp

Filesize
32KB

Download
memory/556-83-0x0000026EFEFC0000-0x0000026EFEFCE000-memory.dmp

Filesize
56KB

Download
memory/556-79-0x0000026EFACC0000-0x0000026EFAFC0000-memory.dmp

Filesize
3.0MB

Download
memory/556-75-0x0000026EF85E0000-0x0000026EF85EA000-memory.dmp

Filesize
40KB

Download
memory/556-81-0x0000026EFA940000-0x0000026EFA948000-memory.dmp

Filesize
32KB

Download
memory/556-82-0x0000026EFF000000-0x0000026EFF038000-memory.dmp

Filesize
224KB

Download
memory/1624-98-0x0000000000400000-0x0000000002574000-memory.dmp

Filesize
33.5MB

Download
memory/1624-102-0x0000000000400000-0x0000000002574000-memory.dmp

Filesize
33.5MB

Download
memory/1624-14-0x0000000000400000-0x0000000002574000-memory.dmp

Filesize
33.5MB

Download
memory/1624-13-0x0000000000400000-0x0000000002574000-memory.dmp

Filesize
33.5MB

Download
memory/1624-100-0x0000000000400000-0x0000000002574000-memory.dmp

Filesize
33.5MB

Download
memory/1624-96-0x0000000000400000-0x0000000002574000-memory.dmp

Filesize
33.5MB

Download
memory/4360-63-0x0000000000400000-0x00000000008AD000-memory.dmp

Filesize
4.7MB

Download
memory/4360-51-0x0000000000400000-0x00000000008AD000-memory.dmp

Filesize
4.7MB

Download
memory/4964-2-0x00000000042B0000-0x000000000431C000-memory.dmp

Filesize
432KB

Download
memory/4964-33-0x0000000000400000-0x0000000002597000-memory.dmp

Filesize
33.6MB

Download
memory/4964-34-0x0000000000400000-0x000000000046F000-memory.dmp

Filesize
444KB

Download
memory/4964-3-0x0000000000400000-0x000000000046F000-memory.dmp

Filesize
444KB

Download
memory/4964-1-0x0000000002630000-0x0000000002730000-memory.dmp

Filesize
1024KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads