stealc | 65d8242fbed0d3353c7e08a89eccac1f1fe39cd3b4d35fe44202471dbdff8e9a

General

Target

46c518ab0703f0c58639b2d45476c8f0_NEAS.exe
Size

398KB
MD5

46c518ab0703f0c58639b2d45476c8f0
SHA1

63ad635114bf5405a612cce7b8ba3528b6820b90
SHA256

65d8242fbed0d3353c7e08a89eccac1f1fe39cd3b4d35fe44202471dbdff8e9a
SHA512

44c5c6d075b17b432bc76fb075dda81ae23f612d4835f10956897c0d38b784d53b348741ac93701100917d0e4e3fa7cb97850647245384c98d1f9c7adb0d4aa4
SSDEEP

6144:WGuIeB32u0NksV1gwHG7zO4piTyDeDf0BRJFUydBc9qXGzRtKL/:OIeB3/0NkGSeGXO4Cye8BR3TfIqoA/

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/1768-135-0x0000000000BB0000-0x00000000043E4000-memory.dmp	family_zgrat_v1
behavioral1/memory/1768-136-0x000000001EC80000-0x000000001ED8A000-memory.dmp	family_zgrat_v1
behavioral1/memory/1768-140-0x0000000005820000-0x0000000005844000-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
2724	u1aw.0.exe
2680	u1aw.1.exe

Loads dropped DLL 10 IoCs

pid	Process
1688	46c518ab0703f0c58639b2d45476c8f0_NEAS.exe
1688	46c518ab0703f0c58639b2d45476c8f0_NEAS.exe
1688	46c518ab0703f0c58639b2d45476c8f0_NEAS.exe
1688	46c518ab0703f0c58639b2d45476c8f0_NEAS.exe
1688	46c518ab0703f0c58639b2d45476c8f0_NEAS.exe
1688	46c518ab0703f0c58639b2d45476c8f0_NEAS.exe
1688	46c518ab0703f0c58639b2d45476c8f0_NEAS.exe
1688	46c518ab0703f0c58639b2d45476c8f0_NEAS.exe
2724	u1aw.0.exe
2724	u1aw.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	u1aw.1.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	u1aw.1.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	u1aw.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	u1aw.0.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	u1aw.0.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
2724	u1aw.0.exe
2724	u1aw.0.exe
1768	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1768	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1768	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1768	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
1768	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1768	SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe

Suspicious use of FindShellTrayWindow 7 IoCs

pid	Process
2680	u1aw.1.exe
2680	u1aw.1.exe
2680	u1aw.1.exe
2680	u1aw.1.exe
2680	u1aw.1.exe
2680	u1aw.1.exe
2680	u1aw.1.exe

Suspicious use of SendNotifyMessage 7 IoCs

pid	Process
2680	u1aw.1.exe
2680	u1aw.1.exe
2680	u1aw.1.exe
2680	u1aw.1.exe
2680	u1aw.1.exe
2680	u1aw.1.exe
2680	u1aw.1.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1688 wrote to memory of 2724	1688	46c518ab0703f0c58639b2d45476c8f0_NEAS.exe	28
PID 1688 wrote to memory of 2724	1688	46c518ab0703f0c58639b2d45476c8f0_NEAS.exe	28
PID 1688 wrote to memory of 2724	1688	46c518ab0703f0c58639b2d45476c8f0_NEAS.exe	28
PID 1688 wrote to memory of 2724	1688	46c518ab0703f0c58639b2d45476c8f0_NEAS.exe	28
PID 1688 wrote to memory of 2680	1688	46c518ab0703f0c58639b2d45476c8f0_NEAS.exe	29
PID 1688 wrote to memory of 2680	1688	46c518ab0703f0c58639b2d45476c8f0_NEAS.exe	29
PID 1688 wrote to memory of 2680	1688	46c518ab0703f0c58639b2d45476c8f0_NEAS.exe	29
PID 1688 wrote to memory of 2680	1688	46c518ab0703f0c58639b2d45476c8f0_NEAS.exe	29
PID 2680 wrote to memory of 1768	2680	u1aw.1.exe	31
PID 2680 wrote to memory of 1768	2680	u1aw.1.exe	31
PID 2680 wrote to memory of 1768	2680	u1aw.1.exe	31
PID 2680 wrote to memory of 1768	2680	u1aw.1.exe	31

C:\Users\Admin\AppData\Local\Temp\46c518ab0703f0c58639b2d45476c8f0_NEAS.exe
"C:\Users\Admin\AppData\Local\Temp\46c518ab0703f0c58639b2d45476c8f0_NEAS.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1688
- C:\Users\Admin\AppData\Local\Temp\u1aw.0.exe
  "C:\Users\Admin\AppData\Local\Temp\u1aw.0.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  PID:2724
- C:\Users\Admin\AppData\Local\Temp\u1aw.1.exe
  "C:\Users\Admin\AppData\Local\Temp\u1aw.1.exe"
  2⤵
  - Executes dropped EXE
  - Checks SCSI registry key(s)
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:2680
- - 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:1768

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\bd92d7984d802ff9a1e24336bd1ccb4209c69a1bd116225cd9479ac9d0f516c4\542394a645844416a1de0f444e8e2a28.tmp

Filesize
1KB

MD5
eeedc41f4d5bf2dfa3e6623ebde76822

SHA1
953b110b0b52e6489fa60f64d7c40c6103a58634

SHA256
e13d6c0313e3c0e83ea0e227c13c074baedb96c490f8d8bc5e26bb0013358dbe

SHA512
b6a196dd01f46deb8ccd5cc1f7beba7182349eb9cf11288b5d4be783e00a7700a6d4267a8203127807542e8df740cf203feaec3a10af2fbc6fa02e6c7b5f617d

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

Filesize
3KB

MD5
a4ee10958204482de0efdaaf8e06664b

SHA1
3cfa1cc031f6f924ffe3072adb457ad84dd5e321

SHA256
03a5b5e3219b9b884df0f74e917c852f555ca37bebb84295b8fdc7bdd951c024

SHA512
939264e5811e050c4e6e581054e2a8b4114702b4f5e1634d6c88673b7356af7939ec27157595fcdca7cdb842bf19cf935515370e756af832a86ae29103bbdeab

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

Filesize
2KB

MD5
f5c3acd93a429039165cc40fc69a92e5

SHA1
2f054b2685f3c7a8b407f2ec7212b0066d7c8285

SHA256
b2a16446eb42973b10cdfaec5ef65c2bb3e0eb66fdd564e658def048ad5b8822

SHA512
7f0efd92a869063cf256be75d62f33426776a0ae1d3c60d0d0c9295c9f4cdc87de5286ad49326ca70e3245c6e78595551524dad252c8c4e5ae4e7977d0f36789

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\u1aw.0.exe

Filesize
265KB

MD5
eeb8bf563a205225145140f3cd2de0f6

SHA1
6cb88d794e216abba97465a0e6eca264820bd69f

SHA256
ee3c5b8ce2a5b1d40648fb75dd04df8bf6809c502911ddad87830a5b93253229

SHA512
8b126db244a0b50df0f438b2f517ef4adf72b96f982ca006ef0751655796d1274004ff2dce40d9bb96e982dc6d960455253a71e299e3a2f2be6cc8c283a45d20

Download Submit
\Users\Admin\AppData\Local\Temp\u1aw.1.exe

Filesize
4.6MB

MD5
397926927bca55be4a77839b1c44de6e

SHA1
e10f3434ef3021c399dbba047832f02b3c898dbd

SHA256
4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

SHA512
cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

Download Submit
memory/1688-2-0x0000000000320000-0x000000000038C000-memory.dmp

Filesize
432KB

Download
memory/1688-1-0x0000000002BA0000-0x0000000002CA0000-memory.dmp

Filesize
1024KB

Download
memory/1688-61-0x0000000000400000-0x000000000046F000-memory.dmp

Filesize
444KB

Download
memory/1688-60-0x0000000000400000-0x0000000002B21000-memory.dmp

Filesize
39.1MB

Download
memory/1688-3-0x0000000000400000-0x000000000046F000-memory.dmp

Filesize
444KB

Download
memory/1768-136-0x000000001EC80000-0x000000001ED8A000-memory.dmp

Filesize
1.0MB

Download
memory/1768-143-0x000000001E950000-0x000000001EA02000-memory.dmp

Filesize
712KB

Download
memory/1768-160-0x00000000006A0000-0x00000000006AA000-memory.dmp

Filesize
40KB

Download
memory/1768-135-0x0000000000BB0000-0x00000000043E4000-memory.dmp

Filesize
56.2MB

Download
memory/1768-161-0x00000000006A0000-0x00000000006AA000-memory.dmp

Filesize
40KB

Download
memory/1768-138-0x0000000000AB0000-0x0000000000ABC000-memory.dmp

Filesize
48KB

Download
memory/1768-137-0x0000000000680000-0x0000000000690000-memory.dmp

Filesize
64KB

Download
memory/1768-139-0x00000000006D0000-0x00000000006E4000-memory.dmp

Filesize
80KB

Download
memory/1768-140-0x0000000005820000-0x0000000005844000-memory.dmp

Filesize
144KB

Download
memory/1768-142-0x000000001E570000-0x000000001E59A000-memory.dmp

Filesize
168KB

Download
memory/1768-141-0x0000000000BA0000-0x0000000000BAA000-memory.dmp

Filesize
40KB

Download
memory/1768-156-0x0000000000AF0000-0x0000000000AFC000-memory.dmp

Filesize
48KB

Download
memory/1768-144-0x0000000000470000-0x000000000047A000-memory.dmp

Filesize
40KB

Download
memory/1768-148-0x000000001FB80000-0x000000001FE80000-memory.dmp

Filesize
3.0MB

Download
memory/1768-150-0x00000000006A0000-0x00000000006AA000-memory.dmp

Filesize
40KB

Download
memory/1768-151-0x0000000000AA0000-0x0000000000AAA000-memory.dmp

Filesize
40KB

Download
memory/1768-152-0x000000001DEA0000-0x000000001DF02000-memory.dmp

Filesize
392KB

Download
memory/1768-153-0x0000000000AD0000-0x0000000000AF2000-memory.dmp

Filesize
136KB

Download
memory/2680-122-0x0000000000400000-0x00000000008AD000-memory.dmp

Filesize
4.7MB

Download
memory/2680-134-0x0000000000400000-0x00000000008AD000-memory.dmp

Filesize
4.7MB

Download
memory/2724-121-0x0000000000400000-0x0000000002AFF000-memory.dmp

Filesize
39.0MB

Download
memory/2724-20-0x0000000061E00000-0x0000000061EF3000-memory.dmp

Filesize
972KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads