stealc | 7b5fffbe6036b3cbcf6e5dc18dc03f1fc1ef02cf656408d990a9a903b5d3a089

General

Target

7b5fffbe6036b3cbcf6e5dc18dc03f1fc1ef02cf656408d990a9a903b5d3a089.exe
Size

404KB
MD5

c4db46cb9c67d544a38dd261070ff161
SHA1

a5f107bdc8fe508535341fd078f9c54eaa2e09a0
SHA256

7b5fffbe6036b3cbcf6e5dc18dc03f1fc1ef02cf656408d990a9a903b5d3a089
SHA512

70978afbb3820ea2159037e06114da06a14a3f7a42533dcae3a2aaaaf89348b6b25a01c0b5888451394248d624f974faf9f9293a983ca9000735970544d9a658
SSDEEP

6144:I+hXdi5S6e9EioGDqP3/CFPi/uh9SqPLb6kACHXPH1D2B9DHf1:vi5SQGOPvCFPi/uhYwLbmC3PH1D2BR1

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 1 IoCs

resource	yara_rule
behavioral1/memory/216-161-0x0000024B00000000-0x0000024B03834000-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-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	u1t8.1.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	7b5fffbe6036b3cbcf6e5dc18dc03f1fc1ef02cf656408d990a9a903b5d3a089.exe

Executes dropped EXE 2 IoCs

pid	Process
4620	u1t8.0.exe
4912	u1t8.1.exe

Loads dropped DLL 2 IoCs

pid	Process
4620	u1t8.0.exe
4620	u1t8.0.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 1 IoCs

pid	pid_target	Process	procid_target
3684	2348	WerFault.exe	89

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	u1t8.1.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	u1t8.1.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	u1t8.1.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	u1t8.0.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	u1t8.0.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
4620	u1t8.0.exe
4620	u1t8.0.exe
4620	u1t8.0.exe
4620	u1t8.0.exe
4620	u1t8.0.exe
4620	u1t8.0.exe
4620	u1t8.0.exe
4620	u1t8.0.exe
4620	u1t8.0.exe
4620	u1t8.0.exe
4620	u1t8.0.exe
4620	u1t8.0.exe
4620	u1t8.0.exe
4620	u1t8.0.exe

Suspicious use of FindShellTrayWindow 7 IoCs

pid	Process
4912	u1t8.1.exe
4912	u1t8.1.exe
4912	u1t8.1.exe
4912	u1t8.1.exe
4912	u1t8.1.exe
4912	u1t8.1.exe
4912	u1t8.1.exe

Suspicious use of SendNotifyMessage 7 IoCs

pid	Process
4912	u1t8.1.exe
4912	u1t8.1.exe
4912	u1t8.1.exe
4912	u1t8.1.exe
4912	u1t8.1.exe
4912	u1t8.1.exe
4912	u1t8.1.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2348 wrote to memory of 4620	2348	7b5fffbe6036b3cbcf6e5dc18dc03f1fc1ef02cf656408d990a9a903b5d3a089.exe	98
PID 2348 wrote to memory of 4620	2348	7b5fffbe6036b3cbcf6e5dc18dc03f1fc1ef02cf656408d990a9a903b5d3a089.exe	98
PID 2348 wrote to memory of 4620	2348	7b5fffbe6036b3cbcf6e5dc18dc03f1fc1ef02cf656408d990a9a903b5d3a089.exe	98
PID 2348 wrote to memory of 4912	2348	7b5fffbe6036b3cbcf6e5dc18dc03f1fc1ef02cf656408d990a9a903b5d3a089.exe	102
PID 2348 wrote to memory of 4912	2348	7b5fffbe6036b3cbcf6e5dc18dc03f1fc1ef02cf656408d990a9a903b5d3a089.exe	102
PID 2348 wrote to memory of 4912	2348	7b5fffbe6036b3cbcf6e5dc18dc03f1fc1ef02cf656408d990a9a903b5d3a089.exe	102
PID 4912 wrote to memory of 216	4912	u1t8.1.exe	109
PID 4912 wrote to memory of 216	4912	u1t8.1.exe	109

C:\Users\Admin\AppData\Local\Temp\7b5fffbe6036b3cbcf6e5dc18dc03f1fc1ef02cf656408d990a9a903b5d3a089.exe
"C:\Users\Admin\AppData\Local\Temp\7b5fffbe6036b3cbcf6e5dc18dc03f1fc1ef02cf656408d990a9a903b5d3a089.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2348
- C:\Users\Admin\AppData\Local\Temp\u1t8.0.exe
  "C:\Users\Admin\AppData\Local\Temp\u1t8.0.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  PID:4620
- C:\Users\Admin\AppData\Local\Temp\u1t8.1.exe
  "C:\Users\Admin\AppData\Local\Temp\u1t8.1.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:4912
- - 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⤵
    PID:216
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2348 -s 1184
  2⤵
  - Program crash
  PID:3684

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4076 --field-trial-handle=1928,i,13242902252791919845,10377620236057253993,262144 --variations-seed-version /prefetch:8
1⤵
PID:3792

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 2348 -ip 2348
1⤵
PID:5044

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --no-appcompat-clear --mojo-platform-channel-handle=3512 --field-trial-handle=1928,i,13242902252791919845,10377620236057253993,262144 --variations-seed-version /prefetch:3
1⤵
PID:1132

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

3

T1552

Credentials In Files

3

T1552.001

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

4

T1082

Lateral Movement

Collection

Data from Local System

3

T1005

Command and Control

Exfiltration

Impact

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Downloads

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\Microsoft\Edge\User Data\Default\Network\SCT Auditing Pending Reports

Filesize
2B

MD5
d751713988987e9331980363e24189ce

SHA1
97d170e1550eee4afc0af065b78cda302a97674c

SHA256
4f53cda18c2baa0c0354bb5f9a3ecbe5ed12ab4d8e11ba873c2f11161202b945

SHA512
b25b294cb4deb69ea00a4c3cf3113904801b6015e5956bd019a8570b1fe1d6040e944ef3cdee16d0a46503ca6e659a25f21cf9ceddc13f352a3c98138c15d6af

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Network\Sdch Dictionaries

Filesize
40B

MD5
20d4b8fa017a12a108c87f540836e250

SHA1
1ac617fac131262b6d3ce1f52f5907e31d5f6f00

SHA256
6028bd681dbf11a0a58dde8a0cd884115c04caa59d080ba51bde1b086ce0079d

SHA512
507b2b8a8a168ff8f2bdafa5d9d341c44501a5f17d9f63f3d43bd586bc9e8ae33221887869fa86f845b7d067cb7d2a7009efd71dda36e03a40a74fee04b86856

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

Filesize
3KB

MD5
e0b72faaf3053a993ebf4c7755da284b

SHA1
29015719d6ed03a85f9508cdd9ac924bec4004a4

SHA256
7563cea54d42867a0dbc5e3eed8733424c3702d4cfc134c2689ff8319fa0313f

SHA512
c8e0f51a95ed303cfca5b8977f6b0c05108a8814c696d39b6251081f490f344e2dbcab98db0047ab290262c5d09c863f089426a58fbaba125b95c4c7f0ebad1d

Download Submit
C:\Users\Admin\AppData\Local\Temp\u1t8.0.exe

Filesize
262KB

MD5
49c818da112894812df1468c79b96bbc

SHA1
b943d8877e19b59cd6f61f702c659e635fd96a4f

SHA256
7dee0c70282dffb5642fe42e1d7480ace50d58fad04f41f240b99dd7be432a3a

SHA512
5171905e30b07b72a32f12b0d9a39003d1a8aa83feeb25cb867a2290eed5e8bf3c6b2d7e5eb85be31a1bc818726dafd899d9956440804b2ef47d46e41c259732

Download Submit
C:\Users\Admin\AppData\Local\Temp\u1t8.1.exe

Filesize
4.6MB

MD5
397926927bca55be4a77839b1c44de6e

SHA1
e10f3434ef3021c399dbba047832f02b3c898dbd

SHA256
4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

SHA512
cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

Download Submit
memory/216-161-0x0000024B00000000-0x0000024B03834000-memory.dmp

Filesize
56.2MB

Download
memory/2348-31-0x0000000000400000-0x0000000002B22000-memory.dmp

Filesize
39.1MB

Download
memory/2348-8-0x0000000004790000-0x00000000047FC000-memory.dmp

Filesize
432KB

Download
memory/2348-2-0x0000000004790000-0x00000000047FC000-memory.dmp

Filesize
432KB

Download
memory/2348-3-0x0000000000400000-0x000000000046F000-memory.dmp

Filesize
444KB

Download
memory/2348-9-0x0000000000400000-0x000000000046F000-memory.dmp

Filesize
444KB

Download
memory/2348-5-0x0000000000400000-0x0000000002B22000-memory.dmp

Filesize
39.1MB

Download
memory/2348-1-0x0000000002CB0000-0x0000000002DB0000-memory.dmp

Filesize
1024KB

Download
memory/2348-7-0x0000000002CB0000-0x0000000002DB0000-memory.dmp

Filesize
1024KB

Download
memory/2348-19-0x0000000000400000-0x0000000002B22000-memory.dmp

Filesize
39.1MB

Download
memory/2348-75-0x0000000000400000-0x000000000046F000-memory.dmp

Filesize
444KB

Download
memory/4620-47-0x0000000061E00000-0x0000000061EF3000-memory.dmp

Filesize
972KB

Download
memory/4620-154-0x0000000000400000-0x0000000002AFE000-memory.dmp

Filesize
39.0MB

Download
memory/4620-105-0x0000000000400000-0x0000000002AFE000-memory.dmp

Filesize
39.0MB

Download
memory/4620-45-0x0000000000400000-0x0000000002AFE000-memory.dmp

Filesize
39.0MB

Download
memory/4620-38-0x0000000000400000-0x0000000002AFE000-memory.dmp

Filesize
39.0MB

Download
memory/4620-160-0x0000000000400000-0x0000000002AFE000-memory.dmp

Filesize
39.0MB

Download
memory/4912-37-0x0000000000400000-0x00000000008AD000-memory.dmp

Filesize
4.7MB

Download
memory/4912-142-0x0000000000400000-0x00000000008AD000-memory.dmp

Filesize
4.7MB

Download
memory/4912-106-0x0000000000400000-0x00000000008AD000-memory.dmp

Filesize
4.7MB

Download
memory/4912-155-0x0000000000400000-0x00000000008AD000-memory.dmp

Filesize
4.7MB

Download
memory/4912-46-0x0000000000400000-0x00000000008AD000-memory.dmp

Filesize
4.7MB

Download
memory/4912-32-0x0000000000400000-0x00000000008AD000-memory.dmp

Filesize
4.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads