Malware Analysis Report

2024-09-11 02:47

Sample ID 240528-tmwhtsce32
Target keygen[pc-ret].exe
SHA256 f824fdc666630ccb179d9086b79783e3ede76e4392a5edfdd20d93b7259ae061
Tags
neshta persistence spyware stealer
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

f824fdc666630ccb179d9086b79783e3ede76e4392a5edfdd20d93b7259ae061

Threat Level: Known bad

The file keygen[pc-ret].exe was found to be: Known bad.

Malicious Activity Summary

neshta persistence spyware stealer

Neshta family

Detect Neshta payload

Neshta

Reads user/profile data of web browsers

Executes dropped EXE

Modifies system executable filetype association

Suspicious use of NtSetInformationThreadHideFromDebugger

Drops file in Windows directory

Drops file in Program Files directory

Unsigned PE

Enumerates physical storage devices

Suspicious behavior: EnumeratesProcesses

Modifies registry class

Suspicious use of WriteProcessMemory

MITRE ATT&CK Matrix V13

Initial Access
TA0001
Execution
TA0002
Persistence
TA0003
Event Triggered Execution
T1546
Change Default File Association
T1546.001
Privilege Escalation
TA0004
Event Triggered Execution
T1546
Change Default File Association
T1546.001
Defense Evasion
TA0005
Modify Registry
T1112
Credential Access
TA0006
Unsecured Credentials
T1552
Credentials In Files
T1552.001
Discovery
TA0007
System Information Discovery
T1082
Lateral Movement
TA0008
Collection
TA0009
Data from Local System
T1005
Exfiltration
TA0010
Command and Control
TA0011
Impact
TA0040
Resource Development
TA0042
Reconnaissance
TA0043

Analysis: static1

Detonation Overview

Reported

2024-05-28 16:10

Signatures

Detect Neshta payload

Description Indicator Process Target
N/A N/A N/A N/A

Neshta family

neshta

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-28 16:10

Reported

2024-05-28 16:13

Platform

win10-20240404-en

Max time kernel

75s

Max time network

81s

Command Line

"C:\Users\Admin\AppData\Local\Temp\keygen[pc-ret].exe"

Signatures

Detect Neshta payload

Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A

Neshta

persistence spyware neshta

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\3582-490\keygen[pc-ret].exe N/A

Modifies system executable filetype association

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.com \"%1\" %*" C:\Users\Admin\AppData\Local\Temp\keygen[pc-ret].exe N/A

Reads user/profile data of web browsers

spyware stealer

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\3582-490\keygen[pc-ret].exe N/A

Drops file in Program Files directory

Description Indicator Process Target
File opened for modification C:\PROGRA~2\COMMON~1\Adobe\ARM\1.0\AdobeARM.exe C:\Users\Admin\AppData\Local\Temp\keygen[pc-ret].exe N/A
File opened for modification C:\PROGRA~2\COMMON~1\MICROS~1\MSInfo\msinfo32.exe C:\Users\Admin\AppData\Local\Temp\keygen[pc-ret].exe N/A
File opened for modification C:\PROGRA~2\MOZILL~1\MAINTE~1.EXE C:\Users\Admin\AppData\Local\Temp\keygen[pc-ret].exe N/A
File opened for modification C:\PROGRA~2\WI54FB~1\wmprph.exe C:\Users\Admin\AppData\Local\Temp\keygen[pc-ret].exe N/A
File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\ACROTE~1.EXE C:\Users\Admin\AppData\Local\Temp\keygen[pc-ret].exe N/A
File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\ADOBEC~1.EXE C:\Users\Admin\AppData\Local\Temp\keygen[pc-ret].exe N/A
File opened for modification C:\PROGRA~2\COMMON~1\MICROS~1\VSTO\10.0\VSTOIN~1.EXE C:\Users\Admin\AppData\Local\Temp\keygen[pc-ret].exe N/A
File opened for modification C:\PROGRA~2\WI54FB~1\setup_wm.exe C:\Users\Admin\AppData\Local\Temp\keygen[pc-ret].exe N/A
File opened for modification C:\PROGRA~2\WI54FB~1\wmpconfig.exe C:\Users\Admin\AppData\Local\Temp\keygen[pc-ret].exe N/A
File opened for modification C:\PROGRA~3\PACKAG~1\{61087~1\VCREDI~1.EXE C:\Users\Admin\AppData\Local\Temp\keygen[pc-ret].exe N/A
File opened for modification C:\PROGRA~2\INTERN~1\ieinstal.exe C:\Users\Admin\AppData\Local\Temp\keygen[pc-ret].exe N/A
File opened for modification C:\PROGRA~2\MOZILL~1\UNINST~1.EXE C:\Users\Admin\AppData\Local\Temp\keygen[pc-ret].exe N/A
File opened for modification C:\PROGRA~2\WI54FB~1\wmlaunch.exe C:\Users\Admin\AppData\Local\Temp\keygen[pc-ret].exe N/A
File opened for modification C:\PROGRA~2\WINDOW~4\ACCESS~1\wordpad.exe C:\Users\Admin\AppData\Local\Temp\keygen[pc-ret].exe N/A
File opened for modification C:\PROGRA~3\PACKAG~1\{33D1F~1\VCREDI~1.EXE C:\Users\Admin\AppData\Local\Temp\keygen[pc-ret].exe N/A
File opened for modification C:\PROGRA~2\INTERN~1\ielowutil.exe C:\Users\Admin\AppData\Local\Temp\keygen[pc-ret].exe N/A
File opened for modification C:\PROGRA~2\WI54FB~1\wmpshare.exe C:\Users\Admin\AppData\Local\Temp\keygen[pc-ret].exe N/A
File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\AcroCEF\RdrCEF.exe C:\Users\Admin\AppData\Local\Temp\keygen[pc-ret].exe N/A
File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\arh.exe C:\Users\Admin\AppData\Local\Temp\keygen[pc-ret].exe N/A
File opened for modification C:\PROGRA~2\COMMON~1\Java\JAVAUP~1\jucheck.exe C:\Users\Admin\AppData\Local\Temp\keygen[pc-ret].exe N/A
File opened for modification C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~4.EXE C:\Users\Admin\AppData\Local\Temp\keygen[pc-ret].exe N/A
File opened for modification C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~2.EXE C:\Users\Admin\AppData\Local\Temp\keygen[pc-ret].exe N/A
File opened for modification C:\PROGRA~3\Adobe\Setup\{AC76B~1\setup.exe C:\Users\Admin\AppData\Local\Temp\keygen[pc-ret].exe N/A
File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\Eula.exe C:\Users\Admin\AppData\Local\Temp\keygen[pc-ret].exe N/A
File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\plug_ins\PI_BRO~1\64BITM~1.EXE C:\Users\Admin\AppData\Local\Temp\keygen[pc-ret].exe N/A
File opened for modification C:\PROGRA~2\COMMON~1\Oracle\Java\javapath\javaws.exe C:\Users\Admin\AppData\Local\Temp\keygen[pc-ret].exe N/A
File opened for modification C:\PROGRA~2\WI8A19~1\ImagingDevices.exe C:\Users\Admin\AppData\Local\Temp\keygen[pc-ret].exe N/A
File opened for modification C:\PROGRA~2\COMMON~1\Oracle\Java\javapath\javaw.exe C:\Users\Admin\AppData\Local\Temp\keygen[pc-ret].exe N/A
File opened for modification C:\PROGRA~2\INTERN~1\iexplore.exe C:\Users\Admin\AppData\Local\Temp\keygen[pc-ret].exe N/A
File opened for modification C:\PROGRA~2\COMMON~1\Oracle\Java\javapath\java.exe C:\Users\Admin\AppData\Local\Temp\keygen[pc-ret].exe N/A
File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\AcroRd32.exe C:\Users\Admin\AppData\Local\Temp\keygen[pc-ret].exe N/A
File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\Browser\WCCHRO~1\WCCHRO~1.EXE C:\Users\Admin\AppData\Local\Temp\keygen[pc-ret].exe N/A
File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\LOGTRA~1.EXE C:\Users\Admin\AppData\Local\Temp\keygen[pc-ret].exe N/A
File opened for modification C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~1.EXE C:\Users\Admin\AppData\Local\Temp\keygen[pc-ret].exe N/A
File opened for modification C:\PROGRA~2\WINDOW~2\wabmig.exe C:\Users\Admin\AppData\Local\Temp\keygen[pc-ret].exe N/A
File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\WOW_HE~1.EXE C:\Users\Admin\AppData\Local\Temp\keygen[pc-ret].exe N/A
File opened for modification C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~3.EXE C:\Users\Admin\AppData\Local\Temp\keygen[pc-ret].exe N/A
File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\ACROBR~1.EXE C:\Users\Admin\AppData\Local\Temp\keygen[pc-ret].exe N/A
File opened for modification C:\PROGRA~2\INTERN~1\ExtExport.exe C:\Users\Admin\AppData\Local\Temp\keygen[pc-ret].exe N/A
File opened for modification C:\PROGRA~2\WI54FB~1\wmplayer.exe C:\Users\Admin\AppData\Local\Temp\keygen[pc-ret].exe N/A
File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\ADelRCP.exe C:\Users\Admin\AppData\Local\Temp\keygen[pc-ret].exe N/A
File opened for modification C:\PROGRA~2\Google\Update\1336~1.151\GO664E~1.EXE C:\Users\Admin\AppData\Local\Temp\keygen[pc-ret].exe N/A
File opened for modification C:\PROGRA~2\Google\Update\1336~1.151\GOBD5D~1.EXE C:\Users\Admin\AppData\Local\Temp\keygen[pc-ret].exe N/A
File opened for modification C:\PROGRA~2\WINDOW~2\wab.exe C:\Users\Admin\AppData\Local\Temp\keygen[pc-ret].exe N/A
File opened for modification C:\PROGRA~3\PACKAG~1\{EF6B0~1\VCREDI~1.EXE C:\Users\Admin\AppData\Local\Temp\keygen[pc-ret].exe N/A
File opened for modification C:\PROGRA~2\COMMON~1\Java\JAVAUP~1\jaureg.exe C:\Users\Admin\AppData\Local\Temp\keygen[pc-ret].exe N/A
File opened for modification C:\PROGRA~2\COMMON~1\Java\JAVAUP~1\jusched.exe C:\Users\Admin\AppData\Local\Temp\keygen[pc-ret].exe N/A
File opened for modification C:\PROGRA~2\WINDOW~2\WinMail.exe C:\Users\Admin\AppData\Local\Temp\keygen[pc-ret].exe N/A
File opened for modification C:\PROGRA~3\PACKAG~1\{CA675~1\VCREDI~1.EXE C:\Users\Admin\AppData\Local\Temp\keygen[pc-ret].exe N/A
File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\FULLTR~1.EXE C:\Users\Admin\AppData\Local\Temp\keygen[pc-ret].exe N/A
File opened for modification C:\PROGRA~2\Google\Update\1336~1.151\GOF5E2~1.EXE C:\Users\Admin\AppData\Local\Temp\keygen[pc-ret].exe N/A
File opened for modification C:\PROGRA~3\MICROS~1\CLICKT~1\{9AC08~1\INTEGR~1.EXE C:\Users\Admin\AppData\Local\Temp\keygen[pc-ret].exe N/A
File opened for modification C:\PROGRA~3\PACKAG~1\{4D8DC~1\VC_RED~1.EXE C:\Users\Admin\AppData\Local\Temp\keygen[pc-ret].exe N/A
File opened for modification C:\PROGRA~3\PACKAG~1\{57A73~1\VC_RED~1.EXE C:\Users\Admin\AppData\Local\Temp\keygen[pc-ret].exe N/A
File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\plug_ins\PI_BRO~1\32BITM~1.EXE C:\Users\Admin\AppData\Local\Temp\keygen[pc-ret].exe N/A
File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\READER~1.EXE C:\Users\Admin\AppData\Local\Temp\keygen[pc-ret].exe N/A
File opened for modification C:\PROGRA~2\COMMON~1\Adobe\ARM\1.0\ADOBEA~1.EXE C:\Users\Admin\AppData\Local\Temp\keygen[pc-ret].exe N/A
File opened for modification C:\PROGRA~2\Google\Update\DISABL~1.EXE C:\Users\Admin\AppData\Local\Temp\keygen[pc-ret].exe N/A

Drops file in Windows directory

Description Indicator Process Target
File opened for modification C:\Windows\svchost.com C:\Users\Admin\AppData\Local\Temp\keygen[pc-ret].exe N/A

Enumerates physical storage devices

Modifies registry class

Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.com \"%1\" %*" C:\Users\Admin\AppData\Local\Temp\keygen[pc-ret].exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\3582-490\keygen[pc-ret].exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\3582-490\keygen[pc-ret].exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\3582-490\keygen[pc-ret].exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\3582-490\keygen[pc-ret].exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 5104 wrote to memory of 96 N/A C:\Users\Admin\AppData\Local\Temp\keygen[pc-ret].exe C:\Users\Admin\AppData\Local\Temp\3582-490\keygen[pc-ret].exe
PID 5104 wrote to memory of 96 N/A C:\Users\Admin\AppData\Local\Temp\keygen[pc-ret].exe C:\Users\Admin\AppData\Local\Temp\3582-490\keygen[pc-ret].exe
PID 5104 wrote to memory of 96 N/A C:\Users\Admin\AppData\Local\Temp\keygen[pc-ret].exe C:\Users\Admin\AppData\Local\Temp\3582-490\keygen[pc-ret].exe

Processes

C:\Users\Admin\AppData\Local\Temp\keygen[pc-ret].exe

"C:\Users\Admin\AppData\Local\Temp\keygen[pc-ret].exe"

C:\Users\Admin\AppData\Local\Temp\3582-490\keygen[pc-ret].exe

"C:\Users\Admin\AppData\Local\Temp\3582-490\keygen[pc-ret].exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp

Files

C:\Users\Admin\AppData\Local\Temp\3582-490\keygen[pc-ret].exe

MD5 62b039b2af7bf5f6abf35ef903024300
SHA1 4ae220e451482e839619c2e927752468e0eda8d5
SHA256 83d7f6eaf7fe075503ea6a0bc726633c34595a6eae7edd7deab95ab4d4a66fd5
SHA512 8abcf2fb422465fa578eb59e2788317ef88360551b675c964e03475a865e22dd4b86550bb442c1823fa72de059cedb438cac34538dcb291ccdb22fd34ee5433e

memory/96-6-0x0000000000400000-0x0000000001B3C000-memory.dmp

memory/96-7-0x0000000001C50000-0x0000000001D62000-memory.dmp

memory/96-12-0x0000000077C40000-0x0000000077C41000-memory.dmp

memory/96-14-0x0000000001C50000-0x0000000001D62000-memory.dmp

memory/96-13-0x0000000001C50000-0x0000000001D62000-memory.dmp

memory/96-20-0x0000000003810000-0x00000000038E6000-memory.dmp

memory/96-19-0x0000000003810000-0x00000000038E6000-memory.dmp

memory/96-15-0x0000000003810000-0x00000000038E6000-memory.dmp

C:\PROGRA~2\Adobe\ACROBA~1\Reader\ACROTE~1.EXE

MD5 3b73078a714bf61d1c19ebc3afc0e454
SHA1 9abeabd74613a2f533e2244c9ee6f967188e4e7e
SHA256 ded54d1fcca07b6bff2bc3b9a1131eac29ff1f836e5d7a7c5c325ec5abe96e29
SHA512 75959d4e8a7649c3268b551a2a378e6d27c0bfb03d2422ebeeb67b0a3f78c079473214057518930f2d72773ce79b106fd2d78405e8e3d8883459dcbb49c163c4

memory/5104-78-0x0000000000400000-0x000000000041B000-memory.dmp

memory/5104-79-0x0000000000400000-0x000000000041B000-memory.dmp

memory/5104-81-0x0000000000400000-0x000000000041B000-memory.dmp

memory/5104-82-0x0000000000400000-0x000000000041B000-memory.dmp

memory/5104-84-0x0000000000400000-0x000000000041B000-memory.dmp