stealc | 97d31daa731806026e50a454986e0b1df51ec32176d930e9bc1c16efffaec74e

General

Target

3517d1ac47167fcc3afbdb4a21a9fcb9.exe
Size

416KB
MD5

3517d1ac47167fcc3afbdb4a21a9fcb9
SHA1

5633d62cd097e5a15b12d98dff9939a418895edc
SHA256

97d31daa731806026e50a454986e0b1df51ec32176d930e9bc1c16efffaec74e
SHA512

295cae5dfdbefd058f27ce0a52cec6051898db7636940e4a00e06b74503f4d7f2953c0893d5ad960ca005581f9d170df6fba6fd112f4c1e1a626b4910f42c3d3
SSDEEP

6144:xNDSLZK+bH6tSYLDidexnCihNJnrWXy1JFIHbP3ShohW90K:LSLZKK/dCCibRz4PiLaK

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/3064-132-0x00000000008A0000-0x0000000004198000-memory.dmp	family_zgrat_v1
behavioral1/memory/3064-133-0x000000001F0F0000-0x000000001F200000-memory.dmp	family_zgrat_v1
behavioral1/memory/3064-137-0x0000000005AC0000-0x0000000005AE4000-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
2664	u1r8.0.exe
2744	u1r8.1.exe

Loads dropped DLL 10 IoCs

pid	Process
2276	3517d1ac47167fcc3afbdb4a21a9fcb9.exe
2276	3517d1ac47167fcc3afbdb4a21a9fcb9.exe
2276	3517d1ac47167fcc3afbdb4a21a9fcb9.exe
2276	3517d1ac47167fcc3afbdb4a21a9fcb9.exe
2664	u1r8.0.exe
2664	u1r8.0.exe
2276	3517d1ac47167fcc3afbdb4a21a9fcb9.exe
2276	3517d1ac47167fcc3afbdb4a21a9fcb9.exe
2276	3517d1ac47167fcc3afbdb4a21a9fcb9.exe
2276	3517d1ac47167fcc3afbdb4a21a9fcb9.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	u1r8.1.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	u1r8.1.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	u1r8.1.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	u1r8.0.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	u1r8.0.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
2664	u1r8.0.exe
3064	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3064	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3064	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3064	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
3064	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
2664	u1r8.0.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3064	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe

Suspicious use of FindShellTrayWindow 7 IoCs

pid	Process
2744	u1r8.1.exe
2744	u1r8.1.exe
2744	u1r8.1.exe
2744	u1r8.1.exe
2744	u1r8.1.exe
2744	u1r8.1.exe
2744	u1r8.1.exe

Suspicious use of SendNotifyMessage 7 IoCs

pid	Process
2744	u1r8.1.exe
2744	u1r8.1.exe
2744	u1r8.1.exe
2744	u1r8.1.exe
2744	u1r8.1.exe
2744	u1r8.1.exe
2744	u1r8.1.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2276 wrote to memory of 2664	2276	3517d1ac47167fcc3afbdb4a21a9fcb9.exe	28
PID 2276 wrote to memory of 2664	2276	3517d1ac47167fcc3afbdb4a21a9fcb9.exe	28
PID 2276 wrote to memory of 2664	2276	3517d1ac47167fcc3afbdb4a21a9fcb9.exe	28
PID 2276 wrote to memory of 2664	2276	3517d1ac47167fcc3afbdb4a21a9fcb9.exe	28
PID 2276 wrote to memory of 2744	2276	3517d1ac47167fcc3afbdb4a21a9fcb9.exe	30
PID 2276 wrote to memory of 2744	2276	3517d1ac47167fcc3afbdb4a21a9fcb9.exe	30
PID 2276 wrote to memory of 2744	2276	3517d1ac47167fcc3afbdb4a21a9fcb9.exe	30
PID 2276 wrote to memory of 2744	2276	3517d1ac47167fcc3afbdb4a21a9fcb9.exe	30
PID 2744 wrote to memory of 3064	2744	u1r8.1.exe	31
PID 2744 wrote to memory of 3064	2744	u1r8.1.exe	31
PID 2744 wrote to memory of 3064	2744	u1r8.1.exe	31
PID 2744 wrote to memory of 3064	2744	u1r8.1.exe	31

C:\Users\Admin\AppData\Local\Temp\3517d1ac47167fcc3afbdb4a21a9fcb9.exe
"C:\Users\Admin\AppData\Local\Temp\3517d1ac47167fcc3afbdb4a21a9fcb9.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2276
- C:\Users\Admin\AppData\Local\Temp\u1r8.0.exe
  "C:\Users\Admin\AppData\Local\Temp\u1r8.0.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  PID:2664
- C:\Users\Admin\AppData\Local\Temp\u1r8.1.exe
  "C:\Users\Admin\AppData\Local\Temp\u1r8.1.exe"
  2⤵
  - Executes dropped EXE
  - Checks SCSI registry key(s)
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:2744
- - 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:3064

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

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\ApplicationInsights\f40fa09571ae3e4604ca1ef5093c12d04345052412cd199086553bfab6d3b7c7\66077ddcb49749968cabf3fb445bff2c.tmp

Filesize
1KB

MD5
82b03da69d457c1439065980cc28133e

SHA1
b6b07a4f46d6f53f7831e632a7a7c9b3752c6299

SHA256
5166bc75a28fd5d5d733d9bc222e6956bbeaedf65e0bc665756d200c2da8c6e3

SHA512
b0fa988013ecfa7ddc46636a77acd21b41f4312c9b3c99864c759030c735c5993932dd1100546fc0f37e0a5ff989ac5a244d3107bea5fa6a3fdbc03dc34d9f99

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

Filesize
3KB

MD5
cb8158702315bca86c6eac66860427aa

SHA1
0aed8d847671a516b0c960437298edba836824f1

SHA256
4f67a5857825bd461083f57405b4c12edf2386091569269f0e534a37b77deadb

SHA512
3da108cdfec336e094d292751509bed3fbbdc7028d0bd0d3b3238b51fac6760e4d5dec532f01e9b8f75f5a04280e8e3f7f1178453658f8648498a42e41fd1fb2

Download Submit
C:\Users\Admin\AppData\Local\Temp\u1r8.0.exe

Filesize
274KB

MD5
fae96a12ae35c2243801206ca089798d

SHA1
52b8769b202701900f03c386623232ee23fb90d3

SHA256
1b32e30cfeea17e7f29f8c907c42cafc3a18da4306007b5c5bc38cb6bb4f1750

SHA512
7a3d2284145b98b8db779e1a941f48125fd3fee00dc147fb6a2c0ecf0840b9c52973930871182e402726878de2bfb0dd7e4d64396e4280700511e2ac81aa7abe

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\u1r8.1.exe

Filesize
4.6MB

MD5
397926927bca55be4a77839b1c44de6e

SHA1
e10f3434ef3021c399dbba047832f02b3c898dbd

SHA256
4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

SHA512
cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

Download Submit
memory/2276-50-0x0000000000400000-0x0000000002B25000-memory.dmp

Filesize
39.1MB

Download
memory/2276-1-0x0000000000400000-0x0000000002B25000-memory.dmp

Filesize
39.1MB

Download
memory/2276-87-0x0000000000400000-0x0000000002B25000-memory.dmp

Filesize
39.1MB

Download
memory/2664-72-0x0000000000400000-0x0000000002B02000-memory.dmp

Filesize
39.0MB

Download
memory/2664-119-0x0000000000400000-0x0000000002B02000-memory.dmp

Filesize
39.0MB

Download
memory/2664-18-0x0000000061E00000-0x0000000061EF3000-memory.dmp

Filesize
972KB

Download
memory/2664-158-0x0000000000400000-0x0000000002B02000-memory.dmp

Filesize
39.0MB

Download
memory/2744-131-0x0000000000400000-0x00000000008AD000-memory.dmp

Filesize
4.7MB

Download
memory/3064-136-0x0000000000500000-0x0000000000514000-memory.dmp

Filesize
80KB

Download
memory/3064-144-0x00000000003E0000-0x00000000003EA000-memory.dmp

Filesize
40KB

Download
memory/3064-135-0x0000000000510000-0x000000000051C000-memory.dmp

Filesize
48KB

Download
memory/3064-137-0x0000000005AC0000-0x0000000005AE4000-memory.dmp

Filesize
144KB

Download
memory/3064-139-0x0000000000890000-0x000000000089A000-memory.dmp

Filesize
40KB

Download
memory/3064-140-0x0000000005BC0000-0x0000000005BEA000-memory.dmp

Filesize
168KB

Download
memory/3064-141-0x000000001E180000-0x000000001E232000-memory.dmp

Filesize
712KB

Download
memory/3064-143-0x0000000000480000-0x00000000004E2000-memory.dmp

Filesize
392KB

Download
memory/3064-142-0x000000001E330000-0x000000001E3AA000-memory.dmp

Filesize
488KB

Download
memory/3064-134-0x00000000004E0000-0x00000000004F0000-memory.dmp

Filesize
64KB

Download
memory/3064-148-0x000000001FCB0000-0x000000001FFB0000-memory.dmp

Filesize
3.0MB

Download
memory/3064-151-0x0000000000530000-0x000000000053A000-memory.dmp

Filesize
40KB

Download
memory/3064-150-0x0000000000530000-0x000000000053A000-memory.dmp

Filesize
40KB

Download
memory/3064-152-0x0000000000860000-0x000000000086A000-memory.dmp

Filesize
40KB

Download
memory/3064-153-0x0000000000870000-0x0000000000892000-memory.dmp

Filesize
136KB

Download
memory/3064-156-0x00000000058C0000-0x00000000058CC000-memory.dmp

Filesize
48KB

Download
memory/3064-133-0x000000001F0F0000-0x000000001F200000-memory.dmp

Filesize
1.1MB

Download
memory/3064-162-0x0000000000530000-0x000000000053A000-memory.dmp

Filesize
40KB

Download
memory/3064-132-0x00000000008A0000-0x0000000004198000-memory.dmp

Filesize
57.0MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads