neshta | a83e8a9ee77972a918fc649dc4fdad501e8587658247f260218ad8eda11400ec

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
05-12-2024 04:43

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General

Target

a83e8a9ee77972a918fc649dc4fdad501e8587658247f260218ad8eda11400ecN.exe
Size

3.5MB
MD5

77b5701afd6c954097e3eb61e3a22c20
SHA1

3bd8e62a3e53e2eaa7f538b4c08b067daf97ca60
SHA256

a83e8a9ee77972a918fc649dc4fdad501e8587658247f260218ad8eda11400ec
SHA512

0ed31ddb4bc4791c6347e28aff1f1d6803313ab4239920dacf29b6622cd926a1f0b6585ec40e75546c7a9537194b2912d668c582157bdaed1fc04e034fe727ad
SSDEEP

49152:57j46kEtX1+V/Hq0FxMTa2C1kaHUToUXMX2zGJ4C6b:5kPi08TAVX5GC8

Score

10^/10

neshta discovery persistence spyware stealer

Malware Config

Signatures

Detect Neshta payload 5 IoCs

resource	yara_rule
behavioral1/memory/2544-0-0x0000000000400000-0x000000000042B000-memory.dmp	family_neshta
behavioral1/files/0x0001000000010314-11.dat	family_neshta
behavioral1/memory/2544-84-0x0000000000400000-0x000000000042B000-memory.dmp	family_neshta
behavioral1/memory/2544-85-0x0000000000400000-0x000000000042B000-memory.dmp	family_neshta
behavioral1/memory/2544-87-0x0000000000400000-0x000000000042B000-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

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Control Panel\International\Geo\Nation	a83e8a9ee77972a918fc649dc4fdad501e8587658247f260218ad8eda11400ecN.exe

Executes dropped EXE 1 IoCs

pid	Process
1512	a83e8a9ee77972a918fc649dc4fdad501e8587658247f260218ad8eda11400ecN.exe

Loads dropped DLL 2 IoCs

pid	Process
2544	a83e8a9ee77972a918fc649dc4fdad501e8587658247f260218ad8eda11400ecN.exe
2544	a83e8a9ee77972a918fc649dc4fdad501e8587658247f260218ad8eda11400ecN.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\" %*"	a83e8a9ee77972a918fc649dc4fdad501e8587658247f260218ad8eda11400ecN.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\COMMON~1\MICROS~1\OFFICE14\FLTLDR.EXE	a83e8a9ee77972a918fc649dc4fdad501e8587658247f260218ad8eda11400ecN.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\INFOPATH.EXE	a83e8a9ee77972a918fc649dc4fdad501e8587658247f260218ad8eda11400ecN.exe
File opened for modification	C:\PROGRA~2\WINDOW~1\WinMail.exe	a83e8a9ee77972a918fc649dc4fdad501e8587658247f260218ad8eda11400ecN.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{4D8DC~1\VC_RED~1.EXE	a83e8a9ee77972a918fc649dc4fdad501e8587658247f260218ad8eda11400ecN.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{EF6B0~1\VCREDI~1.EXE	a83e8a9ee77972a918fc649dc4fdad501e8587658247f260218ad8eda11400ecN.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\EQUATION\EQNEDT32.EXE	a83e8a9ee77972a918fc649dc4fdad501e8587658247f260218ad8eda11400ecN.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\Oarpmany.exe	a83e8a9ee77972a918fc649dc4fdad501e8587658247f260218ad8eda11400ecN.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ieinstal.exe	a83e8a9ee77972a918fc649dc4fdad501e8587658247f260218ad8eda11400ecN.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ielowutil.exe	a83e8a9ee77972a918fc649dc4fdad501e8587658247f260218ad8eda11400ecN.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\WMPDMC.exe	a83e8a9ee77972a918fc649dc4fdad501e8587658247f260218ad8eda11400ecN.exe
File opened for modification	C:\PROGRA~2\WI4223~1\sidebar.exe	a83e8a9ee77972a918fc649dc4fdad501e8587658247f260218ad8eda11400ecN.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\MSOICONS.EXE	a83e8a9ee77972a918fc649dc4fdad501e8587658247f260218ad8eda11400ecN.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\DW\DWTRIG20.EXE	a83e8a9ee77972a918fc649dc4fdad501e8587658247f260218ad8eda11400ecN.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\GROOVEMN.EXE	a83e8a9ee77972a918fc649dc4fdad501e8587658247f260218ad8eda11400ecN.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\ACROBR~1.EXE	a83e8a9ee77972a918fc649dc4fdad501e8587658247f260218ad8eda11400ecN.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~3.EXE	a83e8a9ee77972a918fc649dc4fdad501e8587658247f260218ad8eda11400ecN.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\XLICONS.EXE	a83e8a9ee77972a918fc649dc4fdad501e8587658247f260218ad8eda11400ecN.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmlaunch.exe	a83e8a9ee77972a918fc649dc4fdad501e8587658247f260218ad8eda11400ecN.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmprph.exe	a83e8a9ee77972a918fc649dc4fdad501e8587658247f260218ad8eda11400ecN.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{61087~1\VCREDI~1.EXE	a83e8a9ee77972a918fc649dc4fdad501e8587658247f260218ad8eda11400ecN.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\DW\DW20.EXE	a83e8a9ee77972a918fc649dc4fdad501e8587658247f260218ad8eda11400ecN.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\ink\mip.exe	a83e8a9ee77972a918fc649dc4fdad501e8587658247f260218ad8eda11400ecN.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\MSInfo\msinfo32.exe	a83e8a9ee77972a918fc649dc4fdad501e8587658247f260218ad8eda11400ecN.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\LICLUA.EXE	a83e8a9ee77972a918fc649dc4fdad501e8587658247f260218ad8eda11400ecN.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\PPTICO.EXE	a83e8a9ee77972a918fc649dc4fdad501e8587658247f260218ad8eda11400ecN.exe
File opened for modification	C:\PROGRA~2\WINDOW~4\ImagingDevices.exe	a83e8a9ee77972a918fc649dc4fdad501e8587658247f260218ad8eda11400ecN.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\ADOBEC~1.EXE	a83e8a9ee77972a918fc649dc4fdad501e8587658247f260218ad8eda11400ecN.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\CNFNOT32.EXE	a83e8a9ee77972a918fc649dc4fdad501e8587658247f260218ad8eda11400ecN.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\GRAPH.EXE	a83e8a9ee77972a918fc649dc4fdad501e8587658247f260218ad8eda11400ecN.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\IECONT~1.EXE	a83e8a9ee77972a918fc649dc4fdad501e8587658247f260218ad8eda11400ecN.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSTORE.EXE	a83e8a9ee77972a918fc649dc4fdad501e8587658247f260218ad8eda11400ecN.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\WORDICON.EXE	a83e8a9ee77972a918fc649dc4fdad501e8587658247f260218ad8eda11400ecN.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOBD5D~1.EXE	a83e8a9ee77972a918fc649dc4fdad501e8587658247f260218ad8eda11400ecN.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\OFFICE~1\Setup.exe	a83e8a9ee77972a918fc649dc4fdad501e8587658247f260218ad8eda11400ecN.exe
File opened for modification	C:\PROGRA~2\INTERN~1\iexplore.exe	a83e8a9ee77972a918fc649dc4fdad501e8587658247f260218ad8eda11400ecN.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\WINWORD.EXE	a83e8a9ee77972a918fc649dc4fdad501e8587658247f260218ad8eda11400ecN.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmplayer.exe	a83e8a9ee77972a918fc649dc4fdad501e8587658247f260218ad8eda11400ecN.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmpshare.exe	a83e8a9ee77972a918fc649dc4fdad501e8587658247f260218ad8eda11400ecN.exe
File opened for modification	C:\PROGRA~2\COMMON~1\ADOBEA~1\Versions\1.0\ADOBEA~1.EXE	a83e8a9ee77972a918fc649dc4fdad501e8587658247f260218ad8eda11400ecN.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\ACCICONS.EXE	a83e8a9ee77972a918fc649dc4fdad501e8587658247f260218ad8eda11400ecN.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\SELFCERT.EXE	a83e8a9ee77972a918fc649dc4fdad501e8587658247f260218ad8eda11400ecN.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\VSTO\10.0\VSTOIN~1.EXE	a83e8a9ee77972a918fc649dc4fdad501e8587658247f260218ad8eda11400ecN.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\OFFICE~1\ODeploy.exe	a83e8a9ee77972a918fc649dc4fdad501e8587658247f260218ad8eda11400ecN.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\TextConv\WksConv\Wkconv.exe	a83e8a9ee77972a918fc649dc4fdad501e8587658247f260218ad8eda11400ecN.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\CLVIEW.EXE	a83e8a9ee77972a918fc649dc4fdad501e8587658247f260218ad8eda11400ecN.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\misc.exe	a83e8a9ee77972a918fc649dc4fdad501e8587658247f260218ad8eda11400ecN.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSTORDB.EXE	a83e8a9ee77972a918fc649dc4fdad501e8587658247f260218ad8eda11400ecN.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\ONENOTE.EXE	a83e8a9ee77972a918fc649dc4fdad501e8587658247f260218ad8eda11400ecN.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\POWERPNT.EXE	a83e8a9ee77972a918fc649dc4fdad501e8587658247f260218ad8eda11400ecN.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\A3DUTI~1.EXE	a83e8a9ee77972a918fc649dc4fdad501e8587658247f260218ad8eda11400ecN.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Adobe\Updater6\ADOBEU~1.EXE	a83e8a9ee77972a918fc649dc4fdad501e8587658247f260218ad8eda11400ecN.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~2.EXE	a83e8a9ee77972a918fc649dc4fdad501e8587658247f260218ad8eda11400ecN.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\ONENOTEM.EXE	a83e8a9ee77972a918fc649dc4fdad501e8587658247f260218ad8eda11400ecN.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\setup_wm.exe	a83e8a9ee77972a918fc649dc4fdad501e8587658247f260218ad8eda11400ecN.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\LOGTRA~1.EXE	a83e8a9ee77972a918fc649dc4fdad501e8587658247f260218ad8eda11400ecN.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSOSYNC.EXE	a83e8a9ee77972a918fc649dc4fdad501e8587658247f260218ad8eda11400ecN.exe
File opened for modification	C:\PROGRA~2\WINDOW~1\wab.exe	a83e8a9ee77972a918fc649dc4fdad501e8587658247f260218ad8eda11400ecN.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\SETUPF~1\{AC76B~1\Setup.exe	a83e8a9ee77972a918fc649dc4fdad501e8587658247f260218ad8eda11400ecN.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\Eula.exe	a83e8a9ee77972a918fc649dc4fdad501e8587658247f260218ad8eda11400ecN.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSOHTMED.EXE	a83e8a9ee77972a918fc649dc4fdad501e8587658247f260218ad8eda11400ecN.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmpconfig.exe	a83e8a9ee77972a918fc649dc4fdad501e8587658247f260218ad8eda11400ecN.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{57A73~1\VC_RED~1.EXE	a83e8a9ee77972a918fc649dc4fdad501e8587658247f260218ad8eda11400ecN.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\AcroRd32.exe	a83e8a9ee77972a918fc649dc4fdad501e8587658247f260218ad8eda11400ecN.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\NAMECO~1.EXE	a83e8a9ee77972a918fc649dc4fdad501e8587658247f260218ad8eda11400ecN.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\svchost.com	a83e8a9ee77972a918fc649dc4fdad501e8587658247f260218ad8eda11400ecN.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	a83e8a9ee77972a918fc649dc4fdad501e8587658247f260218ad8eda11400ecN.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\" %*"	a83e8a9ee77972a918fc649dc4fdad501e8587658247f260218ad8eda11400ecN.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1512	a83e8a9ee77972a918fc649dc4fdad501e8587658247f260218ad8eda11400ecN.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2544 wrote to memory of 1512	2544	a83e8a9ee77972a918fc649dc4fdad501e8587658247f260218ad8eda11400ecN.exe	30
PID 2544 wrote to memory of 1512	2544	a83e8a9ee77972a918fc649dc4fdad501e8587658247f260218ad8eda11400ecN.exe	30
PID 2544 wrote to memory of 1512	2544	a83e8a9ee77972a918fc649dc4fdad501e8587658247f260218ad8eda11400ecN.exe	30
PID 2544 wrote to memory of 1512	2544	a83e8a9ee77972a918fc649dc4fdad501e8587658247f260218ad8eda11400ecN.exe	30

C:\Users\Admin\AppData\Local\Temp\a83e8a9ee77972a918fc649dc4fdad501e8587658247f260218ad8eda11400ecN.exe
"C:\Users\Admin\AppData\Local\Temp\a83e8a9ee77972a918fc649dc4fdad501e8587658247f260218ad8eda11400ecN.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:2544
- C:\Users\Admin\AppData\Local\Temp\3582-490\a83e8a9ee77972a918fc649dc4fdad501e8587658247f260218ad8eda11400ecN.exe
  "C:\Users\Admin\AppData\Local\Temp\3582-490\a83e8a9ee77972a918fc649dc4fdad501e8587658247f260218ad8eda11400ecN.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  PID:1512

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

Query Registry

T1012

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

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Downloads

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

Filesize
547KB

MD5
e0f2257e0ad4b04429c932673ead4884

SHA1
352fcc1fe1019cd069ab52b409b31bbd0a08ea9a

SHA256
6e11a49479c1d2b35f15901b0700e307712338f343e1c03fcfe715946fab5969

SHA512
d77e790e63b1b2307df2ef0bb774bcbfa5cdc716764050dfa055a23449cffa5c6f61759b0819712f3e3be06037cbc3469082ba2b02af990017f28658f0103763

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\a83e8a9ee77972a918fc649dc4fdad501e8587658247f260218ad8eda11400ecN.exe

Filesize
3.5MB

MD5
8773d517efd8aff4afc4cd03072222bb

SHA1
851e35ab79312cd7dc70c6bf1efdde4e64da7087

SHA256
41fd5c76c0f13af7cd7dead64185a03d6d747553ee3dfd9dff022469bb75d346

SHA512
fc6c5cbac0cf164b48f0474304ce1ddedbf35b930463bb29871d181d02f39c2a4e3e0921cfa4428072eae267742f19233bbdc6a89dd178749c555746ed007b92

Download Submit
memory/2544-0-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/2544-84-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/2544-85-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/2544-87-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads