neshta | 940d41d85be555a21bed65da3303c2643b786b56bd1d14e38389d84a7a421f89

Analysis

max time kernel
16s
max time network
17s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
19-12-2024 08:29

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General

Target

940d41d85be555a21bed65da3303c2643b786b56bd1d14e38389d84a7a421f89N.exe
Size

1.2MB
MD5

e334d495cd9019213ee6ca65d6d3ee90
SHA1

2e9a32ff93a4b58bdea73396e6923a82e500c7a9
SHA256

940d41d85be555a21bed65da3303c2643b786b56bd1d14e38389d84a7a421f89
SHA512

bff43ce131b3ea84bcbf7a227b77de4f889e7a71b3b55da1fc6efd45368d1f396e0467354fa5eb3983bebaeef1d40b856b24228e8014eadceb2ab59ef8058817
SSDEEP

12288:QPgDWFlgackSxvJaSkSxvJaKvJaqGu1uQFmKIIXfb8h:QID7aVMBavMBaKBaqd8QFfvE

Score

10^/10

neshta discovery persistence spyware stealer

Malware Config

Signatures

Detect Neshta payload 3 IoCs

resource	yara_rule
behavioral1/files/0x0001000000010319-10.dat	family_neshta
behavioral1/memory/1040-93-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral1/memory/1040-95-0x0000000000400000-0x000000000041B000-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
2200	940d41d85be555a21bed65da3303c2643b786b56bd1d14e38389d84a7a421f89N.exe

Loads dropped DLL 7 IoCs

pid	Process
1040	940d41d85be555a21bed65da3303c2643b786b56bd1d14e38389d84a7a421f89N.exe
1040	940d41d85be555a21bed65da3303c2643b786b56bd1d14e38389d84a7a421f89N.exe
2652	WerFault.exe
2652	WerFault.exe
2652	WerFault.exe
2652	WerFault.exe
2652	WerFault.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\" %*"	940d41d85be555a21bed65da3303c2643b786b56bd1d14e38389d84a7a421f89N.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

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\OIS.EXE	940d41d85be555a21bed65da3303c2643b786b56bd1d14e38389d84a7a421f89N.exe
File opened for modification	C:\PROGRA~2\MOZILL~1\MAINTE~1.EXE	940d41d85be555a21bed65da3303c2643b786b56bd1d14e38389d84a7a421f89N.exe
File opened for modification	C:\PROGRA~2\WINDOW~1\wabmig.exe	940d41d85be555a21bed65da3303c2643b786b56bd1d14e38389d84a7a421f89N.exe
File opened for modification	C:\PROGRA~2\WINDOW~1\WinMail.exe	940d41d85be555a21bed65da3303c2643b786b56bd1d14e38389d84a7a421f89N.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\Eula.exe	940d41d85be555a21bed65da3303c2643b786b56bd1d14e38389d84a7a421f89N.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\SOURCE~1\OSE.EXE	940d41d85be555a21bed65da3303c2643b786b56bd1d14e38389d84a7a421f89N.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~2.EXE	940d41d85be555a21bed65da3303c2643b786b56bd1d14e38389d84a7a421f89N.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSQRY32.EXE	940d41d85be555a21bed65da3303c2643b786b56bd1d14e38389d84a7a421f89N.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmpconfig.exe	940d41d85be555a21bed65da3303c2643b786b56bd1d14e38389d84a7a421f89N.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\ACCICONS.EXE	940d41d85be555a21bed65da3303c2643b786b56bd1d14e38389d84a7a421f89N.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmplayer.exe	940d41d85be555a21bed65da3303c2643b786b56bd1d14e38389d84a7a421f89N.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{57A73~1\VC_RED~1.EXE	940d41d85be555a21bed65da3303c2643b786b56bd1d14e38389d84a7a421f89N.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{EF6B0~1\VCREDI~1.EXE	940d41d85be555a21bed65da3303c2643b786b56bd1d14e38389d84a7a421f89N.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSOUC.EXE	940d41d85be555a21bed65da3303c2643b786b56bd1d14e38389d84a7a421f89N.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\POWERPNT.EXE	940d41d85be555a21bed65da3303c2643b786b56bd1d14e38389d84a7a421f89N.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{4D8DC~1\VC_RED~1.EXE	940d41d85be555a21bed65da3303c2643b786b56bd1d14e38389d84a7a421f89N.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{CA675~1\VCREDI~1.EXE	940d41d85be555a21bed65da3303c2643b786b56bd1d14e38389d84a7a421f89N.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\GRAPH.EXE	940d41d85be555a21bed65da3303c2643b786b56bd1d14e38389d84a7a421f89N.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\IECONT~1.EXE	940d41d85be555a21bed65da3303c2643b786b56bd1d14e38389d84a7a421f89N.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSTORE.EXE	940d41d85be555a21bed65da3303c2643b786b56bd1d14e38389d84a7a421f89N.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\NAMECO~1.EXE	940d41d85be555a21bed65da3303c2643b786b56bd1d14e38389d84a7a421f89N.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Adobe\Updater6\ADOBE_~1.EXE	940d41d85be555a21bed65da3303c2643b786b56bd1d14e38389d84a7a421f89N.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~4.EXE	940d41d85be555a21bed65da3303c2643b786b56bd1d14e38389d84a7a421f89N.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GO664E~1.EXE	940d41d85be555a21bed65da3303c2643b786b56bd1d14e38389d84a7a421f89N.exe
File opened for modification	C:\PROGRA~2\Google\Update\DISABL~1.EXE	940d41d85be555a21bed65da3303c2643b786b56bd1d14e38389d84a7a421f89N.exe
File opened for modification	C:\PROGRA~2\WINDOW~1\wab.exe	940d41d85be555a21bed65da3303c2643b786b56bd1d14e38389d84a7a421f89N.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\AcroRd32.exe	940d41d85be555a21bed65da3303c2643b786b56bd1d14e38389d84a7a421f89N.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\MSInfo\msinfo32.exe	940d41d85be555a21bed65da3303c2643b786b56bd1d14e38389d84a7a421f89N.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\MSOXMLED.EXE	940d41d85be555a21bed65da3303c2643b786b56bd1d14e38389d84a7a421f89N.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOF5E2~1.EXE	940d41d85be555a21bed65da3303c2643b786b56bd1d14e38389d84a7a421f89N.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\VPREVIEW.EXE	940d41d85be555a21bed65da3303c2643b786b56bd1d14e38389d84a7a421f89N.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Adobe\Updater6\ADOBEU~1.EXE	940d41d85be555a21bed65da3303c2643b786b56bd1d14e38389d84a7a421f89N.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\DW\DW20.EXE	940d41d85be555a21bed65da3303c2643b786b56bd1d14e38389d84a7a421f89N.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ielowutil.exe	940d41d85be555a21bed65da3303c2643b786b56bd1d14e38389d84a7a421f89N.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\CNFNOT32.EXE	940d41d85be555a21bed65da3303c2643b786b56bd1d14e38389d84a7a421f89N.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{33D1F~1\VCREDI~1.EXE	940d41d85be555a21bed65da3303c2643b786b56bd1d14e38389d84a7a421f89N.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\ONENOTEM.EXE	940d41d85be555a21bed65da3303c2643b786b56bd1d14e38389d84a7a421f89N.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\WORDICON.EXE	940d41d85be555a21bed65da3303c2643b786b56bd1d14e38389d84a7a421f89N.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmlaunch.exe	940d41d85be555a21bed65da3303c2643b786b56bd1d14e38389d84a7a421f89N.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmprph.exe	940d41d85be555a21bed65da3303c2643b786b56bd1d14e38389d84a7a421f89N.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\CLVIEW.EXE	940d41d85be555a21bed65da3303c2643b786b56bd1d14e38389d84a7a421f89N.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\XLICONS.EXE	940d41d85be555a21bed65da3303c2643b786b56bd1d14e38389d84a7a421f89N.exe
File opened for modification	C:\PROGRA~2\WINDOW~2\ACCESS~1\wordpad.exe	940d41d85be555a21bed65da3303c2643b786b56bd1d14e38389d84a7a421f89N.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\LOGTRA~1.EXE	940d41d85be555a21bed65da3303c2643b786b56bd1d14e38389d84a7a421f89N.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\EQUATION\EQNEDT32.EXE	940d41d85be555a21bed65da3303c2643b786b56bd1d14e38389d84a7a421f89N.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\LICLUA.EXE	940d41d85be555a21bed65da3303c2643b786b56bd1d14e38389d84a7a421f89N.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ieinstal.exe	940d41d85be555a21bed65da3303c2643b786b56bd1d14e38389d84a7a421f89N.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{61087~1\VCREDI~1.EXE	940d41d85be555a21bed65da3303c2643b786b56bd1d14e38389d84a7a421f89N.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Resource\Icons\SC_REA~1.EXE	940d41d85be555a21bed65da3303c2643b786b56bd1d14e38389d84a7a421f89N.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\ink\mip.exe	940d41d85be555a21bed65da3303c2643b786b56bd1d14e38389d84a7a421f89N.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\1033\ONELEV.EXE	940d41d85be555a21bed65da3303c2643b786b56bd1d14e38389d84a7a421f89N.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSOHTMED.EXE	940d41d85be555a21bed65da3303c2643b786b56bd1d14e38389d84a7a421f89N.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSTORDB.EXE	940d41d85be555a21bed65da3303c2643b786b56bd1d14e38389d84a7a421f89N.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\A3DUTI~1.EXE	940d41d85be555a21bed65da3303c2643b786b56bd1d14e38389d84a7a421f89N.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\VSTO\10.0\VSTOIN~1.EXE	940d41d85be555a21bed65da3303c2643b786b56bd1d14e38389d84a7a421f89N.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~3.EXE	940d41d85be555a21bed65da3303c2643b786b56bd1d14e38389d84a7a421f89N.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\misc.exe	940d41d85be555a21bed65da3303c2643b786b56bd1d14e38389d84a7a421f89N.exe
File opened for modification	C:\PROGRA~2\MOZILL~1\UNINST~1.EXE	940d41d85be555a21bed65da3303c2643b786b56bd1d14e38389d84a7a421f89N.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\ACROBR~1.EXE	940d41d85be555a21bed65da3303c2643b786b56bd1d14e38389d84a7a421f89N.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\SETUPF~1\{AC76B~1\Setup.exe	940d41d85be555a21bed65da3303c2643b786b56bd1d14e38389d84a7a421f89N.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\GROOVEMN.EXE	940d41d85be555a21bed65da3303c2643b786b56bd1d14e38389d84a7a421f89N.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\WINWORD.EXE	940d41d85be555a21bed65da3303c2643b786b56bd1d14e38389d84a7a421f89N.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\MSOICONS.EXE	940d41d85be555a21bed65da3303c2643b786b56bd1d14e38389d84a7a421f89N.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\OFFICE~1\ODeploy.exe	940d41d85be555a21bed65da3303c2643b786b56bd1d14e38389d84a7a421f89N.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\svchost.com	940d41d85be555a21bed65da3303c2643b786b56bd1d14e38389d84a7a421f89N.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 1 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	940d41d85be555a21bed65da3303c2643b786b56bd1d14e38389d84a7a421f89N.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\" %*"	940d41d85be555a21bed65da3303c2643b786b56bd1d14e38389d84a7a421f89N.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1040 wrote to memory of 2200	1040	940d41d85be555a21bed65da3303c2643b786b56bd1d14e38389d84a7a421f89N.exe	29
PID 1040 wrote to memory of 2200	1040	940d41d85be555a21bed65da3303c2643b786b56bd1d14e38389d84a7a421f89N.exe	29
PID 1040 wrote to memory of 2200	1040	940d41d85be555a21bed65da3303c2643b786b56bd1d14e38389d84a7a421f89N.exe	29
PID 1040 wrote to memory of 2200	1040	940d41d85be555a21bed65da3303c2643b786b56bd1d14e38389d84a7a421f89N.exe	29
PID 2200 wrote to memory of 2652	2200	940d41d85be555a21bed65da3303c2643b786b56bd1d14e38389d84a7a421f89N.exe	30
PID 2200 wrote to memory of 2652	2200	940d41d85be555a21bed65da3303c2643b786b56bd1d14e38389d84a7a421f89N.exe	30
PID 2200 wrote to memory of 2652	2200	940d41d85be555a21bed65da3303c2643b786b56bd1d14e38389d84a7a421f89N.exe	30

C:\Users\Admin\AppData\Local\Temp\940d41d85be555a21bed65da3303c2643b786b56bd1d14e38389d84a7a421f89N.exe
"C:\Users\Admin\AppData\Local\Temp\940d41d85be555a21bed65da3303c2643b786b56bd1d14e38389d84a7a421f89N.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:1040
- C:\Users\Admin\AppData\Local\Temp\3582-490\940d41d85be555a21bed65da3303c2643b786b56bd1d14e38389d84a7a421f89N.exe
  "C:\Users\Admin\AppData\Local\Temp\3582-490\940d41d85be555a21bed65da3303c2643b786b56bd1d14e38389d84a7a421f89N.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of WriteProcessMemory
  PID:2200
- - C:\Windows\system32\WerFault.exe
    C:\Windows\system32\WerFault.exe -u -p 2200 -s 544
    3⤵
    - Loads dropped DLL
    PID:2652

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

Loading Replay Monitor...

Downloads

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

Filesize
547KB

MD5
cf6c595d3e5e9667667af096762fd9c4

SHA1
9bb44da8d7f6457099cb56e4f7d1026963dce7ce

SHA256
593e60cc30ae0789448547195af77f550387f6648d45847ea244dd0dd7abf03d

SHA512
ff4f789df9e6a6d0fbe12b3250f951fcf11e857906c65e96a30bb46266e7e1180d6103a03db2f3764e0d1346b2de7afba8259ba080057e4a268e45e8654dfa80

Download Submit
C:\Users\Admin\AppData\Local\Temp\3582-490\940d41d85be555a21bed65da3303c2643b786b56bd1d14e38389d84a7a421f89N.exe

Filesize
1.2MB

MD5
fb7a676f1521858d52b7bc1942238c68

SHA1
f5202806c70fdda33c7a4d27d60a572894d80685

SHA256
38e754e57fad8ac447d1f39f836c77b79d9bcd32edb1239e76cdeea8e30eb243

SHA512
f0605d6a504b9f3d5f1f0674db15ebf7ee88c80860202d0807ee02fa0ff4ffd266ba95ca4e474758539b7309b0ab25562a1fdd673d0bd050c6a784c5d434f0aa

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

Filesize
252KB

MD5
9e2b9928c89a9d0da1d3e8f4bd96afa7

SHA1
ec66cda99f44b62470c6930e5afda061579cde35

SHA256
8899b4ed3446b7d55b54defbc1acb7c5392a4b3bc8ec2cdc7c31171708965043

SHA512
2ca5ad1d0e12a8049de885b90b7f56fe77c868e0d6dae4ec4b6f3bc0bf7b2e73295cc9b1328c2b45357ffb0d7804622ab3f91a56140b098e93b691032d508156

Download Submit
memory/1040-93-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1040-95-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2200-11-0x000007FEF64B3000-0x000007FEF64B4000-memory.dmp

Filesize
4KB

Download
memory/2200-12-0x000000013FA30000-0x000000013FB58000-memory.dmp

Filesize
1.2MB

Download
memory/2200-40-0x000007FEF64B0000-0x000007FEF6E9C000-memory.dmp

Filesize
9.9MB

Download
memory/2200-92-0x000007FEF64B0000-0x000007FEF6E9C000-memory.dmp

Filesize
9.9MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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