stealc | 364e800c0cf1962f36e41f8f1a5a1029decb25007c712277275729e299543683

General

Target

364e800c0cf1962f36e41f8f1a5a1029decb25007c712277275729e299543683.exe
Size

408KB
MD5

a4dcfaa13e52e432fc8fdca623c6f01e
SHA1

a31d46c6989187943a2ff623c0ce40989dc22739
SHA256

364e800c0cf1962f36e41f8f1a5a1029decb25007c712277275729e299543683
SHA512

ef19c81dfbc921c4e2201f97b3e42895bad3a8783f92ed4d0a69b5e76729115e6b127591041cdd245e9f32db36f0955b12ee4ab1014ac53ab5560ad6aaa5b6bb
SSDEEP

6144:Et/Mq3iBOHmgiOSbXEX1Hj09wKU2mvAJgiBthwUl:LaRilbUX2jS2Bt2Ul

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 3 IoCs

resource	yara_rule
behavioral1/memory/988-132-0x0000000000310000-0x0000000003B44000-memory.dmp	family_zgrat_v1
behavioral1/memory/988-133-0x000000001EDC0000-0x000000001EECA000-memory.dmp	family_zgrat_v1
behavioral1/memory/988-137-0x0000000005A40000-0x0000000005A64000-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
1064	u1n4.0.exe
2448	u1n4.1.exe

Loads dropped DLL 10 IoCs

pid	Process
2128	364e800c0cf1962f36e41f8f1a5a1029decb25007c712277275729e299543683.exe
2128	364e800c0cf1962f36e41f8f1a5a1029decb25007c712277275729e299543683.exe
2128	364e800c0cf1962f36e41f8f1a5a1029decb25007c712277275729e299543683.exe
2128	364e800c0cf1962f36e41f8f1a5a1029decb25007c712277275729e299543683.exe
2128	364e800c0cf1962f36e41f8f1a5a1029decb25007c712277275729e299543683.exe
2128	364e800c0cf1962f36e41f8f1a5a1029decb25007c712277275729e299543683.exe
2128	364e800c0cf1962f36e41f8f1a5a1029decb25007c712277275729e299543683.exe
2128	364e800c0cf1962f36e41f8f1a5a1029decb25007c712277275729e299543683.exe
1064	u1n4.0.exe
1064	u1n4.0.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

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	u1n4.1.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	u1n4.1.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	u1n4.1.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	u1n4.0.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	u1n4.0.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
1064	u1n4.0.exe
1064	u1n4.0.exe
988	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
988	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
988	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
988	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
988	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	988	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe

Suspicious use of FindShellTrayWindow 7 IoCs

pid	Process
2448	u1n4.1.exe
2448	u1n4.1.exe
2448	u1n4.1.exe
2448	u1n4.1.exe
2448	u1n4.1.exe
2448	u1n4.1.exe
2448	u1n4.1.exe

Suspicious use of SendNotifyMessage 7 IoCs

pid	Process
2448	u1n4.1.exe
2448	u1n4.1.exe
2448	u1n4.1.exe
2448	u1n4.1.exe
2448	u1n4.1.exe
2448	u1n4.1.exe
2448	u1n4.1.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2128 wrote to memory of 1064	2128	364e800c0cf1962f36e41f8f1a5a1029decb25007c712277275729e299543683.exe	28
PID 2128 wrote to memory of 1064	2128	364e800c0cf1962f36e41f8f1a5a1029decb25007c712277275729e299543683.exe	28
PID 2128 wrote to memory of 1064	2128	364e800c0cf1962f36e41f8f1a5a1029decb25007c712277275729e299543683.exe	28
PID 2128 wrote to memory of 1064	2128	364e800c0cf1962f36e41f8f1a5a1029decb25007c712277275729e299543683.exe	28
PID 2128 wrote to memory of 2448	2128	364e800c0cf1962f36e41f8f1a5a1029decb25007c712277275729e299543683.exe	29
PID 2128 wrote to memory of 2448	2128	364e800c0cf1962f36e41f8f1a5a1029decb25007c712277275729e299543683.exe	29
PID 2128 wrote to memory of 2448	2128	364e800c0cf1962f36e41f8f1a5a1029decb25007c712277275729e299543683.exe	29
PID 2128 wrote to memory of 2448	2128	364e800c0cf1962f36e41f8f1a5a1029decb25007c712277275729e299543683.exe	29
PID 2448 wrote to memory of 988	2448	u1n4.1.exe	31
PID 2448 wrote to memory of 988	2448	u1n4.1.exe	31
PID 2448 wrote to memory of 988	2448	u1n4.1.exe	31
PID 2448 wrote to memory of 988	2448	u1n4.1.exe	31

C:\Users\Admin\AppData\Local\Temp\364e800c0cf1962f36e41f8f1a5a1029decb25007c712277275729e299543683.exe
"C:\Users\Admin\AppData\Local\Temp\364e800c0cf1962f36e41f8f1a5a1029decb25007c712277275729e299543683.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2128
- C:\Users\Admin\AppData\Local\Temp\u1n4.0.exe
  "C:\Users\Admin\AppData\Local\Temp\u1n4.0.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  PID:1064
- C:\Users\Admin\AppData\Local\Temp\u1n4.1.exe
  "C:\Users\Admin\AppData\Local\Temp\u1n4.1.exe"
  2⤵
  - Executes dropped EXE
  - Checks SCSI registry key(s)
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:2448
- - 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:988

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

3

T1082

Lateral Movement

Collection

Data from Local System

3

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\ApplicationInsights\049b7335d372bd07248452d0b58e37cfb8420ac5b148b226adcb19ae95655a7b\4677557840a7442b9e2e46a84a99d15f.tmp

Filesize
1KB

MD5
7ee722e2134b537e1efd3bfb52cba787

SHA1
bac87b64c55f11ae44bb24dd88f605bf39fded01

SHA256
63e8b59ea40d04872ec97aefb2d7b2278c5ed4dc98b7fa1c73a4a30d4137b284

SHA512
6162e9201fac254949bf8579742e5ffa4b23aac772ff4163852a152d841b86f2f6f5e567c8bd87acf5f9f8fed0b2524d7e9c9ab9ba4bd0565f76f8babf36d8dd

Download Submit
\ProgramData\mozglue.dll

Filesize
593KB

MD5
c8fd9be83bc728cc04beffafc2907fe9

SHA1
95ab9f701e0024cedfbd312bcfe4e726744c4f2e

SHA256
ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

SHA512
fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

Download Submit
\ProgramData\nss3.dll

Filesize
2.0MB

MD5
1cc453cdf74f31e4d913ff9c10acdde2

SHA1
6e85eae544d6e965f15fa5c39700fa7202f3aafe

SHA256
ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

SHA512
dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

Download Submit
\Users\Admin\AppData\Local\Temp\u1n4.0.exe

Filesize
262KB

MD5
49c818da112894812df1468c79b96bbc

SHA1
b943d8877e19b59cd6f61f702c659e635fd96a4f

SHA256
7dee0c70282dffb5642fe42e1d7480ace50d58fad04f41f240b99dd7be432a3a

SHA512
5171905e30b07b72a32f12b0d9a39003d1a8aa83feeb25cb867a2290eed5e8bf3c6b2d7e5eb85be31a1bc818726dafd899d9956440804b2ef47d46e41c259732

Download Submit
\Users\Admin\AppData\Local\Temp\u1n4.1.exe

Filesize
4.6MB

MD5
397926927bca55be4a77839b1c44de6e

SHA1
e10f3434ef3021c399dbba047832f02b3c898dbd

SHA256
4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

SHA512
cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

Download Submit
memory/988-138-0x0000000005A70000-0x0000000005A7A000-memory.dmp

Filesize
40KB

Download
memory/988-145-0x000000001FC50000-0x000000001FF50000-memory.dmp

Filesize
3.0MB

Download
memory/988-156-0x0000000000300000-0x000000000030A000-memory.dmp

Filesize
40KB

Download
memory/988-152-0x0000000003F90000-0x0000000003F9C000-memory.dmp

Filesize
48KB

Download
memory/988-149-0x0000000003F70000-0x0000000003F92000-memory.dmp

Filesize
136KB

Download
memory/988-147-0x0000000003F60000-0x0000000003F6A000-memory.dmp

Filesize
40KB

Download
memory/988-148-0x000000001F660000-0x000000001F6C2000-memory.dmp

Filesize
392KB

Download
memory/988-141-0x00000000002E0000-0x00000000002EA000-memory.dmp

Filesize
40KB

Download
memory/988-140-0x000000001E280000-0x000000001E332000-memory.dmp

Filesize
712KB

Download
memory/988-132-0x0000000000310000-0x0000000003B44000-memory.dmp

Filesize
56.2MB

Download
memory/988-133-0x000000001EDC0000-0x000000001EECA000-memory.dmp

Filesize
1.0MB

Download
memory/988-135-0x0000000005810000-0x000000000581C000-memory.dmp

Filesize
48KB

Download
memory/988-134-0x0000000003C50000-0x0000000003C60000-memory.dmp

Filesize
64KB

Download
memory/988-136-0x0000000005800000-0x0000000005814000-memory.dmp

Filesize
80KB

Download
memory/988-137-0x0000000005A40000-0x0000000005A64000-memory.dmp

Filesize
144KB

Download
memory/988-139-0x0000000005A90000-0x0000000005ABA000-memory.dmp

Filesize
168KB

Download
memory/1064-119-0x0000000000400000-0x0000000002AFE000-memory.dmp

Filesize
39.0MB

Download
memory/1064-41-0x0000000061E00000-0x0000000061EF3000-memory.dmp

Filesize
972KB

Download
memory/2128-1-0x0000000000280000-0x0000000000380000-memory.dmp

Filesize
1024KB

Download
memory/2128-35-0x0000000000280000-0x0000000000380000-memory.dmp

Filesize
1024KB

Download
memory/2128-2-0x0000000002B60000-0x0000000002BCC000-memory.dmp

Filesize
432KB

Download
memory/2128-36-0x0000000000400000-0x000000000046F000-memory.dmp

Filesize
444KB

Download
memory/2128-34-0x0000000000400000-0x0000000002B23000-memory.dmp

Filesize
39.1MB

Download
memory/2128-3-0x0000000000400000-0x000000000046F000-memory.dmp

Filesize
444KB

Download
memory/2448-131-0x0000000000400000-0x00000000008AD000-memory.dmp

Filesize
4.7MB

Download
memory/2448-128-0x0000000000400000-0x00000000008AD000-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