neshta | 65c51559a35715c766bfbff927e7fd1bbbe5668b6e8e433ac284ffebd3fa29fb

Analysis

max time kernel
95s
max time network
97s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
22-11-2024 13:31

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General

Target

65c51559a35715c766bfbff927e7fd1bbbe5668b6e8e433ac284ffebd3fa29fb.exe
Size

135KB
MD5

4f9e3ac0c4f0d133a6f267302deb676e
SHA1

3459ed82b7945a5ed9716dc2c20bffc0872d27dd
SHA256

65c51559a35715c766bfbff927e7fd1bbbe5668b6e8e433ac284ffebd3fa29fb
SHA512

9a42990f9e75332a75b0ea9f7ef2adb837e8b27dc90f3c33ce42d116afef4797bfd1ba090b28190146c5b209dcc17deee12ff00fc7aff902367f7071aca2b778
SSDEEP

3072:v5rCqOP1iYxpX58VcGp3/zsaMWr85C35rCqOP1iYxpX58VcGp3/za:v5ezrnOLs1W935ezrnOLa

Score

10^/10

neshta discovery persistence spyware

Malware Config

Signatures

Detect Neshta payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/files/0x0007000000023cc2-3.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
Neshta family
neshta

Executes dropped EXE 1 IoCs

Processes:

Un_A.exe

pid	Process
3388	Un_A.exe

Loads dropped DLL 1 IoCs

Processes:

Un_A.exe

pid	Process
3388	Un_A.exe

Drops file in Program Files directory 1 IoCs

Processes:

Un_A.exe

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Razer\Synapse3\install.log	Un_A.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

Processes:

Un_A.exe65c51559a35715c766bfbff927e7fd1bbbe5668b6e8e433ac284ffebd3fa29fb.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Un_A.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	65c51559a35715c766bfbff927e7fd1bbbe5668b6e8e433ac284ffebd3fa29fb.exe

NSIS installer 2 IoCs

installer

Processes:

resource	yara_rule
behavioral2/files/0x0007000000023cc2-3.dat	nsis_installer_1
behavioral2/files/0x0007000000023cc2-3.dat	nsis_installer_2

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

65c51559a35715c766bfbff927e7fd1bbbe5668b6e8e433ac284ffebd3fa29fb.exe

description	pid	Process	procid_target
PID 1804 wrote to memory of 3388	1804	65c51559a35715c766bfbff927e7fd1bbbe5668b6e8e433ac284ffebd3fa29fb.exe	85
PID 1804 wrote to memory of 3388	1804	65c51559a35715c766bfbff927e7fd1bbbe5668b6e8e433ac284ffebd3fa29fb.exe	85
PID 1804 wrote to memory of 3388	1804	65c51559a35715c766bfbff927e7fd1bbbe5668b6e8e433ac284ffebd3fa29fb.exe	85

C:\Users\Admin\AppData\Local\Temp\65c51559a35715c766bfbff927e7fd1bbbe5668b6e8e433ac284ffebd3fa29fb.exe
"C:\Users\Admin\AppData\Local\Temp\65c51559a35715c766bfbff927e7fd1bbbe5668b6e8e433ac284ffebd3fa29fb.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1804
- C:\Users\Admin\AppData\Local\Temp\~nsuA.tmp\Un_A.exe
  "C:\Users\Admin\AppData\Local\Temp\~nsuA.tmp\Un_A.exe" _?=C:\Users\Admin\AppData\Local\Temp\
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  PID:3388

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\nsz8406.tmp\System.dll

Filesize
11KB

MD5
fccff8cb7a1067e23fd2e2b63971a8e1

SHA1
30e2a9e137c1223a78a0f7b0bf96a1c361976d91

SHA256
6fcea34c8666b06368379c6c402b5321202c11b00889401c743fb96c516c679e

SHA512
f4335e84e6f8d70e462a22f1c93d2998673a7616c868177cac3e8784a3be1d7d0bb96f2583fa0ed82f4f2b6b8f5d9b33521c279a42e055d80a94b4f3f1791e0c

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C:\Users\Admin\AppData\Local\Temp\~nsuA.tmp\Un_A.exe

Filesize
135KB

MD5
4f9e3ac0c4f0d133a6f267302deb676e

SHA1
3459ed82b7945a5ed9716dc2c20bffc0872d27dd

SHA256
65c51559a35715c766bfbff927e7fd1bbbe5668b6e8e433ac284ffebd3fa29fb

SHA512
9a42990f9e75332a75b0ea9f7ef2adb837e8b27dc90f3c33ce42d116afef4797bfd1ba090b28190146c5b209dcc17deee12ff00fc7aff902367f7071aca2b778

Download Submit