neshta | 63a3e3646193f7dfb4230949c5166b42df0e469996d3028783f3920f867e0c2c

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
08-12-2024 11:01

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General

Target

New folder/Keygen.exe
Size

2.5MB
MD5

e72838eccda2eae29e96b0c572d783c3
SHA1

60f0944ecbd21cf590445c12ba89a2ae48f27a6a
SHA256

f824fdc666630ccb179d9086b79783e3ede76e4392a5edfdd20d93b7259ae061
SHA512

7439902a4f16d29dcc4c749adc40f4541d509e607d915287c6c98f609ef14c4eb99ec507d7e7c853527a6c08628a367b21ae0f066828c2cc8792f2c1a3fa77f8
SSDEEP

49152:IJdf39XFINkWr5kkYe6TdOYz44rcaMJIsjOO/ry3X0EdNZgJAxGEG8CZaFDG5UN:q9XaH5kheKdX4cjuR6q6XTNTI58ZTN

Score

10^/10

neshta discovery persistence spyware stealer

Malware Config

Signatures

Detect Neshta payload 3 IoCs

resource	yara_rule
behavioral2/files/0x0001000000010319-10.dat	family_neshta
behavioral2/memory/1884-117-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral2/memory/1884-119-0x0000000000400000-0x000000000041B000-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

Executes dropped EXE 1 IoCs

pid	Process
2748	Keygen.exe

Loads dropped DLL 2 IoCs

pid	Process
1884	Keygen.exe
1884	Keygen.exe

Modifies system executable filetype association 2 TTPs 1 IoCs

persistence

Modify Registry

T1112

Change Default File Association

T1546.001

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.com \"%1\" %*"	Keygen.exe

Reads user/profile data of web browsers 3 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

Credentials from Web Browsers
T1555.003

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
2748	Keygen.exe

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File opened for modification	C:\PROGRA~2\WINDOW~1\wabmig.exe	Keygen.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\setup_wm.exe	Keygen.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOBD5D~1.EXE	Keygen.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ielowutil.exe	Keygen.exe
File opened for modification	C:\PROGRA~2\INTERN~1\iexplore.exe	Keygen.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\WINWORD.EXE	Keygen.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GO664E~1.EXE	Keygen.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ieinstal.exe	Keygen.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\EQUATION\EQNEDT32.EXE	Keygen.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\MSInfo\msinfo32.exe	Keygen.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\SOURCE~1\OSE.EXE	Keygen.exe
File opened for modification	C:\PROGRA~2\MOZILL~1\MAINTE~1.EXE	Keygen.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{CA675~1\VCREDI~1.EXE	Keygen.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\ACROBR~1.EXE	Keygen.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\DW\DW20.EXE	Keygen.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~1.EXE	Keygen.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\NAMECO~1.EXE	Keygen.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\POWERPNT.EXE	Keygen.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\VPREVIEW.EXE	Keygen.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmpshare.exe	Keygen.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Resource\Icons\SC_REA~1.EXE	Keygen.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\LICLUA.EXE	Keygen.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmplayer.exe	Keygen.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\INFOPATH.EXE	Keygen.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\ONENOTE.EXE	Keygen.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSOUC.EXE	Keygen.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\WORDICON.EXE	Keygen.exe
File opened for modification	C:\PROGRA~2\Google\Update\DISABL~1.EXE	Keygen.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\misc.exe	Keygen.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSQRY32.EXE	Keygen.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmprph.exe	Keygen.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\SETUPF~1\{AC76B~1\Setup.exe	Keygen.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\IECONT~1.EXE	Keygen.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\VSTO\10.0\VSTOIN~1.EXE	Keygen.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~3.EXE	Keygen.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSOHTMED.EXE	Keygen.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\PPTICO.EXE	Keygen.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmlaunch.exe	Keygen.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\A3DUTI~1.EXE	Keygen.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\ADOBEC~1.EXE	Keygen.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\CLVIEW.EXE	Keygen.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\ink\mip.exe	Keygen.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\TextConv\WksConv\Wkconv.exe	Keygen.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\OFFICE~1\ODeploy.exe	Keygen.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\CNFNOT32.EXE	Keygen.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\SELFCERT.EXE	Keygen.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Adobe\Updater6\ADOBE_~1.EXE	Keygen.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\DW\DWTRIG20.EXE	Keygen.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\OIS.EXE	Keygen.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\ONENOTEM.EXE	Keygen.exe
File opened for modification	C:\PROGRA~2\WINDOW~1\WinMail.exe	Keygen.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmpconfig.exe	Keygen.exe
File opened for modification	C:\PROGRA~2\WI4223~1\sidebar.exe	Keygen.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{4D8DC~1\VC_RED~1.EXE	Keygen.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOF5E2~1.EXE	Keygen.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\BCSSync.exe	Keygen.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\1033\ONELEV.EXE	Keygen.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\XLICONS.EXE	Keygen.exe
File opened for modification	C:\PROGRA~2\WINDOW~1\wab.exe	Keygen.exe
File opened for modification	C:\PROGRA~2\WINDOW~4\ImagingDevices.exe	Keygen.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{33D1F~1\VCREDI~1.EXE	Keygen.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\Eula.exe	Keygen.exe
File opened for modification	C:\PROGRA~2\COMMON~1\ADOBEA~1\Versions\1.0\ADOBEA~1.EXE	Keygen.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\Oarpmany.exe	Keygen.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\svchost.com	Keygen.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	Keygen.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Keygen.exe

Modifies registry class 1 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.com \"%1\" %*"	Keygen.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2748	Keygen.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1884 wrote to memory of 2748	1884	Keygen.exe	30
PID 1884 wrote to memory of 2748	1884	Keygen.exe	30
PID 1884 wrote to memory of 2748	1884	Keygen.exe	30
PID 1884 wrote to memory of 2748	1884	Keygen.exe	30

C:\Users\Admin\AppData\Local\Temp\New folder\Keygen.exe
"C:\Users\Admin\AppData\Local\Temp\New folder\Keygen.exe"
1⤵
- Loads dropped DLL
- Modifies system executable filetype association
- Drops file in Program Files directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1884
- C:\Users\Admin\AppData\Local\Temp\3582-490\Keygen.exe
  "C:\Users\Admin\AppData\Local\Temp\3582-490\Keygen.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  PID:2748

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Event Triggered Execution

T1546

Change Default File Association

T1546.001

Privilege Escalation

Event Triggered Execution

T1546

Change Default File Association

T1546.001

Defense Evasion

Modify Registry

T1112

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\MSOCache\ALLUSE~1\{90140~1\dwtrig20.exe

Filesize
547KB

MD5
cf6c595d3e5e9667667af096762fd9c4

SHA1
9bb44da8d7f6457099cb56e4f7d1026963dce7ce

SHA256
593e60cc30ae0789448547195af77f550387f6648d45847ea244dd0dd7abf03d

SHA512
ff4f789df9e6a6d0fbe12b3250f951fcf11e857906c65e96a30bb46266e7e1180d6103a03db2f3764e0d1346b2de7afba8259ba080057e4a268e45e8654dfa80

Download Submit
\PROGRA~2\Adobe\READER~1.0\Reader\LOGTRA~1.EXE

Filesize
252KB

MD5
9e2b9928c89a9d0da1d3e8f4bd96afa7

SHA1
ec66cda99f44b62470c6930e5afda061579cde35

SHA256
8899b4ed3446b7d55b54defbc1acb7c5392a4b3bc8ec2cdc7c31171708965043

SHA512
2ca5ad1d0e12a8049de885b90b7f56fe77c868e0d6dae4ec4b6f3bc0bf7b2e73295cc9b1328c2b45357ffb0d7804622ab3f91a56140b098e93b691032d508156

Download Submit
\Users\Admin\AppData\Local\Temp\3582-490\Keygen.exe

Filesize
2.5MB

MD5
62b039b2af7bf5f6abf35ef903024300

SHA1
4ae220e451482e839619c2e927752468e0eda8d5

SHA256
83d7f6eaf7fe075503ea6a0bc726633c34595a6eae7edd7deab95ab4d4a66fd5

SHA512
8abcf2fb422465fa578eb59e2788317ef88360551b675c964e03475a865e22dd4b86550bb442c1823fa72de059cedb438cac34538dcb291ccdb22fd34ee5433e

Download Submit
memory/1884-11-0x0000000002D90000-0x00000000044CC000-memory.dmp

Filesize
23.2MB

Download
memory/1884-119-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1884-117-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2748-26-0x0000000077380000-0x0000000077381000-memory.dmp

Filesize
4KB

Download
memory/2748-16-0x0000000077380000-0x0000000077381000-memory.dmp

Filesize
4KB

Download
memory/2748-30-0x000000007720F000-0x0000000077210000-memory.dmp

Filesize
4KB

Download
memory/2748-28-0x0000000077380000-0x0000000077381000-memory.dmp

Filesize
4KB

Download
memory/2748-38-0x0000000000240000-0x0000000000352000-memory.dmp

Filesize
1.1MB

Download
memory/2748-24-0x0000000077380000-0x0000000077381000-memory.dmp

Filesize
4KB

Download
memory/2748-22-0x0000000077380000-0x0000000077381000-memory.dmp

Filesize
4KB

Download
memory/2748-20-0x0000000077380000-0x0000000077381000-memory.dmp

Filesize
4KB

Download
memory/2748-18-0x0000000077380000-0x0000000077381000-memory.dmp

Filesize
4KB

Download
memory/2748-31-0x0000000077210000-0x0000000077211000-memory.dmp

Filesize
4KB

Download
memory/2748-14-0x0000000077380000-0x0000000077381000-memory.dmp

Filesize
4KB

Download
memory/2748-44-0x0000000003480000-0x0000000003556000-memory.dmp

Filesize
856KB

Download
memory/2748-39-0x0000000003480000-0x0000000003556000-memory.dmp

Filesize
856KB

Download
memory/2748-32-0x0000000077380000-0x0000000077381000-memory.dmp

Filesize
4KB

Download
memory/2748-33-0x0000000000240000-0x0000000000352000-memory.dmp

Filesize
1.1MB

Download
memory/2748-13-0x0000000000400000-0x0000000001B3C000-memory.dmp

Filesize
23.2MB

Download
memory/2748-120-0x0000000000400000-0x0000000001B3C000-memory.dmp

Filesize
23.2MB

Download