neshta | 55d726f18ff6c6a006fa861edd7b8a7cba7534d2900daffed6c04714c54f4bb1

Analysis

max time kernel
121s
max time network
125s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
24-12-2024 10:20

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General

Target

vbc.exe
Size

234KB
MD5

781932d5e3cf1b9e902ee2ea8c48f572
SHA1

70a244d771d7cfa61b2fa3d2a0ac386ea2bf0393
SHA256

afbae06f0ec7939e039a47b7579a98f269eca1be5625e7343267cf4bbb0d5709
SHA512

ba05f74a081a6e4fc12b4c00f388da141bdfa61074ecf379421cdcc72d6f546e6067e07877332e3456bf27a3b17d5549ade76b04cbf2de2753f39fbdf31082bc
SSDEEP

6144:wBlL/c42BI/9n/DNlCeLwfyYMgKoul0D8nPEAq8G:Ce4X9/bCn0kul0D8nJq8G

Score

10^/10

neshta discovery persistence spyware

Malware Config

Signatures

Detect Neshta payload 1 IoCs

resource	yara_rule
behavioral1/memory/856-9-0x00000000001C0000-0x00000000001DB000-memory.dmp	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

Loads dropped DLL 1 IoCs

pid	Process
2024	vbc.exe

Uses the VBS compiler for execution 1 TTPs

Command and Scripting Interpreter
T1059
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1852	856	WerFault.exe	31

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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vbc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vbc.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 2024 wrote to memory of 856	2024	vbc.exe	31
PID 2024 wrote to memory of 856	2024	vbc.exe	31
PID 2024 wrote to memory of 856	2024	vbc.exe	31
PID 2024 wrote to memory of 856	2024	vbc.exe	31
PID 2024 wrote to memory of 856	2024	vbc.exe	31
PID 2024 wrote to memory of 856	2024	vbc.exe	31
PID 2024 wrote to memory of 856	2024	vbc.exe	31
PID 2024 wrote to memory of 856	2024	vbc.exe	31
PID 2024 wrote to memory of 856	2024	vbc.exe	31
PID 2024 wrote to memory of 856	2024	vbc.exe	31
PID 2024 wrote to memory of 856	2024	vbc.exe	31
PID 2024 wrote to memory of 856	2024	vbc.exe	31
PID 2024 wrote to memory of 856	2024	vbc.exe	31
PID 2024 wrote to memory of 856	2024	vbc.exe	31
PID 856 wrote to memory of 1852	856	vbc.exe	32
PID 856 wrote to memory of 1852	856	vbc.exe	32
PID 856 wrote to memory of 1852	856	vbc.exe	32
PID 856 wrote to memory of 1852	856	vbc.exe	32

C:\Users\Admin\AppData\Local\Temp\vbc.exe
"C:\Users\Admin\AppData\Local\Temp\vbc.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2024
- C:\Users\Admin\AppData\Local\Temp\vbc.exe
  "C:\Users\Admin\AppData\Local\Temp\vbc.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:856
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 856 -s 148
    3⤵
    - Program crash
    PID:1852

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

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\nseFB9F.tmp\azxcktqvoyc.dll

Filesize
32KB

MD5
26ffa4722b447fff084a239b44f7cac9

SHA1
39f7ad0bf15f3dcf6e67141108476abea370f7e3

SHA256
77aba174986d7969103ae452fd1193ccb9dc495a4579fa4b7f2939e367b33121

SHA512
118068c79e021899abeeb9a17e548b9887af536fc9b8a9a35358ef85980d31fc5192f989a4d5d1a3826c63882888cdc10ac3c5f3918a4172bbf547643ff75532

Download Submit
memory/856-9-0x00000000001C0000-0x00000000001DB000-memory.dmp

Filesize
108KB

Download
memory/856-19-0x00000000001C0000-0x00000000001DB000-memory.dmp

Filesize
108KB

Download
memory/856-18-0x00000000001C0000-0x00000000001DB000-memory.dmp

Filesize
108KB

Download
memory/856-14-0x00000000001C0000-0x00000000001DB000-memory.dmp

Filesize
108KB

Download
memory/2024-7-0x0000000074977000-0x0000000074979000-memory.dmp

Filesize
8KB

Download