neshta | 5ad31c93cafc1d373c34f737ba8a7d8bbd430167cebbfde876ff4d44b8f4d626

Analysis

max time kernel
150s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
05-01-2025 19:17

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General

Target

JaffaCakes118_b8ea8711e07b457e2d8aa5090ba63b5b.exe
Size

135KB
MD5

b8ea8711e07b457e2d8aa5090ba63b5b
SHA1

72361e71e86546dba05c4f36142fffff31cf4735
SHA256

5ad31c93cafc1d373c34f737ba8a7d8bbd430167cebbfde876ff4d44b8f4d626
SHA512

d5676a6e6abc37d2637b4af3efb227c51d7f8043aed15519a79b49cc1546809a189a1df422e05690c0e1a3f30564a4aa06d644b17dba605009f165f367a8630a
SSDEEP

3072:N5rCqOP1iYxpX58VcGp7hqkP0Br85Ch5rCqOP1iYxpX58VcGp7hO:N5ezrnO7hqkcd9h5ezrnO7hO

Score

10^/10

neshta discovery persistence spyware

Malware Config

Signatures

Detect Neshta payload 1 IoCs

resource	yara_rule
behavioral2/files/0x000a000000023b89-3.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

pid	Process
3876	Un_A.exe

Loads dropped DLL 1 IoCs

pid	Process
3876	Un_A.exe

Drops file in Program Files directory 1 IoCs

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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_b8ea8711e07b457e2d8aa5090ba63b5b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Un_A.exe

NSIS installer 2 IoCs

installer

resource	yara_rule
behavioral2/files/0x000a000000023b89-3.dat	nsis_installer_1
behavioral2/files/0x000a000000023b89-3.dat	nsis_installer_2

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1056 wrote to memory of 3876	1056	JaffaCakes118_b8ea8711e07b457e2d8aa5090ba63b5b.exe	82
PID 1056 wrote to memory of 3876	1056	JaffaCakes118_b8ea8711e07b457e2d8aa5090ba63b5b.exe	82
PID 1056 wrote to memory of 3876	1056	JaffaCakes118_b8ea8711e07b457e2d8aa5090ba63b5b.exe	82

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b8ea8711e07b457e2d8aa5090ba63b5b.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b8ea8711e07b457e2d8aa5090ba63b5b.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1056
- 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:3876

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\nst9098.tmp\System.dll

Filesize
11KB

MD5
fccff8cb7a1067e23fd2e2b63971a8e1

SHA1
30e2a9e137c1223a78a0f7b0bf96a1c361976d91

SHA256
6fcea34c8666b06368379c6c402b5321202c11b00889401c743fb96c516c679e

SHA512
f4335e84e6f8d70e462a22f1c93d2998673a7616c868177cac3e8784a3be1d7d0bb96f2583fa0ed82f4f2b6b8f5d9b33521c279a42e055d80a94b4f3f1791e0c

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

Filesize
135KB

MD5
b8ea8711e07b457e2d8aa5090ba63b5b

SHA1
72361e71e86546dba05c4f36142fffff31cf4735

SHA256
5ad31c93cafc1d373c34f737ba8a7d8bbd430167cebbfde876ff4d44b8f4d626

SHA512
d5676a6e6abc37d2637b4af3efb227c51d7f8043aed15519a79b49cc1546809a189a1df422e05690c0e1a3f30564a4aa06d644b17dba605009f165f367a8630a

Download Submit