neshta | 1ce80b2bb2a5f56573ca7b6f662accea56f4b9e0e3052ddec14fe03364c14dfe

Resubmissions

19-07-2024 11:43

240719-nvvnlssera 10

19-07-2024 11:41

19-07-2024 11:40

19-07-2024 11:40

19-07-2024 11:30

Analysis

max time kernel
91s
max time network
129s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
19-07-2024 11:30

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General

Target

Cryp_RAT.rtf
Size

662KB
MD5

1fc2941b70df9dd6cdf4cb82af740fe9
SHA1

e5d18e3487ca2d5037215c0e0ebfaf7ccae1c655
SHA256

44b87df9f68f5a3084c7d80c1c7492ca5209e816a4e83fdbd6e2fcb6f1ff936f
SHA512

d5da156e406093bfd398d78a36962360ed6918d6b96e641843e7eeddbd6fe41c0a1681bf0a4fe9e31be22d7b1e16267e62abafc9c14d1dea223e72f3ef810081
SSDEEP

12288:6NtcndUa0XzmFe4lT+F4qZDGefM4qeF4C:6Oua0XzmFFI+7Z4VT

Score

10^/10

neshta persistence spyware

Malware Config

Signatures

Detect Neshta payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/files/0x000800000002343c-79.dat	family_neshta

Neshta
Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.
persistence spyware neshta

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

WINWORD.EXE

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	WINWORD.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	WINWORD.EXE

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

WINWORD.EXE

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	WINWORD.EXE

NTFS ADS 1 IoCs

Processes:

WINWORD.EXE

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Local\Temp\{84501C52-B2B7-4946-9DEF-B8504C9C9F46}\Client.exe:Zone.Identifier	WINWORD.EXE

Suspicious behavior: AddClipboardFormatListener 2 IoCs

Processes:

WINWORD.EXE

pid	Process
2284	WINWORD.EXE
2284	WINWORD.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

Processes:

WINWORD.EXE

pid	Process
2284	WINWORD.EXE
2284	WINWORD.EXE
2284	WINWORD.EXE
2284	WINWORD.EXE
2284	WINWORD.EXE
2284	WINWORD.EXE
2284	WINWORD.EXE
2284	WINWORD.EXE
2284	WINWORD.EXE
2284	WINWORD.EXE
2284	WINWORD.EXE
2284	WINWORD.EXE
2284	WINWORD.EXE
2284	WINWORD.EXE

C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE
"C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\Cryp_RAT.rtf" /o ""
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- NTFS ADS
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:2284

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Content.MSO\C6C97E7F.wmf

Filesize
316B

MD5
95bb648d6eb9265eeaf0f889731b1e23

SHA1
631d60a024835f4e53ceb9d0a987ce52fe517df4

SHA256
9639441a9d36e7e4fda980961b75eeb334540b8cfbcee71eb3cd857e0a838e0c

SHA512
184414ea68092124290049282147070a86172833359404ee26199a36083d720e291d55bb85e4ae1d02504ce841efbc646760e7cc5af4088a253aed7b2665c420

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\UProof\CUSTOM.DIC

Filesize
2B

MD5
f3b25701fe362ec84616a93a45ce9998

SHA1
d62636d8caec13f04e28442a0a6fa1afeb024bbb

SHA256
b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

SHA512
98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Word\AutoRecovery save of Cryp_RAT.asd

Filesize
346KB

MD5
7be092fe6470617e24ea0f5c2e61d68d

SHA1
1bd67f0f190454e0923fe28a7c7854fbfcb45c4f

SHA256
1384b87b9b84f32aaf6118c14603ca951b7ebc7f70fc45de85461c47af0ed520

SHA512
b79c5eb89b1f132d275c49f7c7bbf5d3e4d19ac85363fa88167f36ef358beef95c837f90bb48298627955b76f89f93e1364bbda77e137d250065fe02c3d74767

Download Submit
memory/2284-10-0x00007FFDE0630000-0x00007FFDE0825000-memory.dmp

Filesize
2.0MB

Download
memory/2284-15-0x00007FFDE0630000-0x00007FFDE0825000-memory.dmp

Filesize
2.0MB

Download
memory/2284-4-0x00007FFDE06CD000-0x00007FFDE06CE000-memory.dmp

Filesize
4KB

Download
memory/2284-9-0x00007FFDE0630000-0x00007FFDE0825000-memory.dmp

Filesize
2.0MB

Download
memory/2284-0-0x00007FFDA06B0000-0x00007FFDA06C0000-memory.dmp

Filesize
64KB

Download
memory/2284-12-0x00007FFDE0630000-0x00007FFDE0825000-memory.dmp

Filesize
2.0MB

Download
memory/2284-11-0x00007FFDE0630000-0x00007FFDE0825000-memory.dmp

Filesize
2.0MB

Download
memory/2284-13-0x00007FFD9E500000-0x00007FFD9E510000-memory.dmp

Filesize
64KB

Download
memory/2284-16-0x00007FFDE0630000-0x00007FFDE0825000-memory.dmp

Filesize
2.0MB

Download
memory/2284-19-0x00007FFDE0630000-0x00007FFDE0825000-memory.dmp

Filesize
2.0MB

Download
memory/2284-20-0x00007FFD9E500000-0x00007FFD9E510000-memory.dmp

Filesize
64KB

Download
memory/2284-18-0x00007FFDE0630000-0x00007FFDE0825000-memory.dmp

Filesize
2.0MB

Download
memory/2284-17-0x00007FFDE0630000-0x00007FFDE0825000-memory.dmp

Filesize
2.0MB

Download
memory/2284-5-0x00007FFDA06B0000-0x00007FFDA06C0000-memory.dmp

Filesize
64KB

Download
memory/2284-14-0x00007FFDE0630000-0x00007FFDE0825000-memory.dmp

Filesize
2.0MB

Download
memory/2284-8-0x00007FFDE0630000-0x00007FFDE0825000-memory.dmp

Filesize
2.0MB

Download
memory/2284-7-0x00007FFDE0630000-0x00007FFDE0825000-memory.dmp

Filesize
2.0MB

Download
memory/2284-6-0x00007FFDE0630000-0x00007FFDE0825000-memory.dmp

Filesize
2.0MB

Download
memory/2284-3-0x00007FFDA06B0000-0x00007FFDA06C0000-memory.dmp

Filesize
64KB

Download
memory/2284-1-0x00007FFDA06B0000-0x00007FFDA06C0000-memory.dmp

Filesize
64KB

Download
memory/2284-2-0x00007FFDA06B0000-0x00007FFDA06C0000-memory.dmp

Filesize
64KB

Download
memory/2284-109-0x00007FFDA06B0000-0x00007FFDA06C0000-memory.dmp

Filesize
64KB

Download
memory/2284-108-0x00007FFDA06B0000-0x00007FFDA06C0000-memory.dmp

Filesize
64KB

Download
memory/2284-106-0x00007FFDA06B0000-0x00007FFDA06C0000-memory.dmp

Filesize
64KB

Download
memory/2284-107-0x00007FFDA06B0000-0x00007FFDA06C0000-memory.dmp

Filesize
64KB

Download
memory/2284-110-0x00007FFDE0630000-0x00007FFDE0825000-memory.dmp

Filesize
2.0MB

Download