neshta | 0978712dbec1d91834dea2ca5f5e2115f32ab576ac57d40ff0a1ea337fecdae9

Analysis

max time kernel
118s
max time network
119s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
06/12/2024, 20:51

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General

Target

massexe/winpcap-4.13.exe
Size

464KB
MD5

ce5cf0bb6b5d6da269289007b17652e3
SHA1

9d81fd8d4b20dc7d68e6783ff872ff577dbebd2c
SHA256

4ac6a84eda7b4b474f00118733da6e7f33c35f009a554a6f78d4464cb7101192
SHA512

c503821a71ef2e4861d6009fa48a1b69ff88e8bfc6ff2244f652e2dca60004c80e4cc6b1cb22f67ccd43a26dc037d1c7fcce1ff031ecc16820dbc96675857d77
SSDEEP

6144:k9X3dmkMIdQQkpxYLcP+k471Xr4bjMxiW+D/xqfF3o2KCzDunki8m/VlidXTj2EF:W34kDdc8L4bQA5qt3CxnkLwlQFPcOLsk

Score

10^/10

neshta discovery persistence spyware stealer

Malware Config

Signatures

Detect Neshta payload 3 IoCs

resource	yara_rule
behavioral9/files/0x0001000000010319-10.dat	family_neshta
behavioral9/memory/2504-107-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral9/memory/2504-156-0x0000000000400000-0x000000000041B000-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

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File created	C:\Windows\system32\drivers\npf.sys	winpcap-4.13.exe

Executes dropped EXE 1 IoCs

pid	Process
920	winpcap-4.13.exe

Loads dropped DLL 5 IoCs

pid	Process
2504	winpcap-4.13.exe
920	winpcap-4.13.exe
2504	winpcap-4.13.exe
920	winpcap-4.13.exe
920	winpcap-4.13.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\" %*"	winpcap-4.13.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
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Drops file in System32 directory 5 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\wpcap.dll	winpcap-4.13.exe
File created	C:\Windows\SysWOW64\Packet.dll	winpcap-4.13.exe
File created	C:\Windows\system32\wpcap.dll	winpcap-4.13.exe
File created	C:\Windows\system32\Packet.dll	winpcap-4.13.exe
File created	C:\Windows\SysWOW64\pthreadVC.dll	winpcap-4.13.exe

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\1033\ONELEV.EXE	winpcap-4.13.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\GRAPH.EXE	winpcap-4.13.exe
File opened for modification	C:\PROGRA~2\MOZILL~1\MAINTE~1.EXE	winpcap-4.13.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\setup_wm.exe	winpcap-4.13.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Adobe\Updater6\ADOBEU~1.EXE	winpcap-4.13.exe
File opened for modification	C:\PROGRA~2\COMMON~1\ADOBEA~1\Versions\1.0\ADOBEA~1.EXE	winpcap-4.13.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\DW\DW20.EXE	winpcap-4.13.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~2.EXE	winpcap-4.13.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmpconfig.exe	winpcap-4.13.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\XLICONS.EXE	winpcap-4.13.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmlaunch.exe	winpcap-4.13.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\MSOXMLED.EXE	winpcap-4.13.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\OFFICE~1\ODeploy.exe	winpcap-4.13.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSOHTMED.EXE	winpcap-4.13.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSOSYNC.EXE	winpcap-4.13.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\LICLUA.EXE	winpcap-4.13.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\CNFNOT32.EXE	winpcap-4.13.exe
File opened for modification	C:\PROGRA~2\WI4223~1\sidebar.exe	winpcap-4.13.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\A3DUTI~1.EXE	winpcap-4.13.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\FLTLDR.EXE	winpcap-4.13.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSQRY32.EXE	winpcap-4.13.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\PPTICO.EXE	winpcap-4.13.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\Oarpmany.exe	winpcap-4.13.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\OFFICE~1\Setup.exe	winpcap-4.13.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmplayer.exe	winpcap-4.13.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{33D1F~1\VCREDI~1.EXE	winpcap-4.13.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\DW\DWTRIG20.EXE	winpcap-4.13.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSTORE.EXE	winpcap-4.13.exe
File created	C:\Program Files\WinPcap\LICENSE	winpcap-4.13.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{4D8DC~1\VC_RED~1.EXE	winpcap-4.13.exe
File created	C:\Program Files\WinPcap\rpcapd.exe	winpcap-4.13.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\ACROBR~1.EXE	winpcap-4.13.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~1.EXE	winpcap-4.13.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GO664E~1.EXE	winpcap-4.13.exe
File opened for modification	C:\PROGRA~2\MOZILL~1\UNINST~1.EXE	winpcap-4.13.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOF5E2~1.EXE	winpcap-4.13.exe
File opened for modification	C:\PROGRA~2\INTERN~1\iexplore.exe	winpcap-4.13.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\IECONT~1.EXE	winpcap-4.13.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\ONENOTE.EXE	winpcap-4.13.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\ADOBEC~1.EXE	winpcap-4.13.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Resource\Icons\SC_REA~1.EXE	winpcap-4.13.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\MSInfo\msinfo32.exe	winpcap-4.13.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~4.EXE	winpcap-4.13.exe
File opened for modification	C:\PROGRA~2\WINDOW~1\WinMail.exe	winpcap-4.13.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\SELFCERT.EXE	winpcap-4.13.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\WMPDMC.exe	winpcap-4.13.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\LOGTRA~1.EXE	winpcap-4.13.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ieinstal.exe	winpcap-4.13.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\BCSSync.exe	winpcap-4.13.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\POWERPNT.EXE	winpcap-4.13.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\Eula.exe	winpcap-4.13.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\WINWORD.EXE	winpcap-4.13.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmpshare.exe	winpcap-4.13.exe
File opened for modification	C:\PROGRA~2\WINDOW~2\ACCESS~1\wordpad.exe	winpcap-4.13.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\SOURCE~1\OSE.EXE	winpcap-4.13.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ielowutil.exe	winpcap-4.13.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\CLVIEW.EXE	winpcap-4.13.exe
File opened for modification	C:\PROGRA~2\WINDOW~1\wab.exe	winpcap-4.13.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\ACCICONS.EXE	winpcap-4.13.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\GROOVEMN.EXE	winpcap-4.13.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\NAMECO~1.EXE	winpcap-4.13.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{61087~1\VCREDI~1.EXE	winpcap-4.13.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\OIS.EXE	winpcap-4.13.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\ONENOTEM.EXE	winpcap-4.13.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\svchost.com	winpcap-4.13.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 4 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	net1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winpcap-4.13.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winpcap-4.13.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	net.exe

NSIS installer 4 IoCs

installer

resource	yara_rule
behavioral9/files/0x0005000000018704-6.dat	nsis_installer_1
behavioral9/files/0x0005000000018704-6.dat	nsis_installer_2
behavioral9/files/0x000500000001933f-103.dat	nsis_installer_1
behavioral9/files/0x000500000001933f-103.dat	nsis_installer_2

Modifies registry class 1 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.com \"%1\" %*"	winpcap-4.13.exe

Runs net.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
920	winpcap-4.13.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2504 wrote to memory of 920	2504	winpcap-4.13.exe	30
PID 2504 wrote to memory of 920	2504	winpcap-4.13.exe	30
PID 2504 wrote to memory of 920	2504	winpcap-4.13.exe	30
PID 2504 wrote to memory of 920	2504	winpcap-4.13.exe	30
PID 2504 wrote to memory of 920	2504	winpcap-4.13.exe	30
PID 2504 wrote to memory of 920	2504	winpcap-4.13.exe	30
PID 2504 wrote to memory of 920	2504	winpcap-4.13.exe	30
PID 920 wrote to memory of 2608	920	winpcap-4.13.exe	31
PID 920 wrote to memory of 2608	920	winpcap-4.13.exe	31
PID 920 wrote to memory of 2608	920	winpcap-4.13.exe	31
PID 920 wrote to memory of 2608	920	winpcap-4.13.exe	31
PID 2608 wrote to memory of 1788	2608	net.exe	33
PID 2608 wrote to memory of 1788	2608	net.exe	33
PID 2608 wrote to memory of 1788	2608	net.exe	33
PID 2608 wrote to memory of 1788	2608	net.exe	33

C:\Users\Admin\AppData\Local\Temp\massexe\winpcap-4.13.exe
"C:\Users\Admin\AppData\Local\Temp\massexe\winpcap-4.13.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:2504
- C:\Users\Admin\AppData\Local\Temp\3582-490\winpcap-4.13.exe
  "C:\Users\Admin\AppData\Local\Temp\3582-490\winpcap-4.13.exe"
  2⤵
  - Drops file in Drivers directory
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in System32 directory
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of WriteProcessMemory
  PID:920
- - C:\Windows\SysWOW64\net.exe
    net stop npf
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2608
  - - C:\Windows\SysWOW64\net1.exe
      C:\Windows\system32\net1 stop npf
      4⤵
      System Location Discovery: System Language Discovery
      PID:1788

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

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
C:\Program Files\WinPcap\uninstall.exe

Filesize
57KB

MD5
b72931b899bc7a809bcc4c6c84c739f9

SHA1
a1c8b51971dbe08745a6a58685f576216147bea6

SHA256
9a0e8da7819c5a4e9d9aedc782ebac9777b1a98e8bdce9f94d2fa22c48812c58

SHA512
1c0d4b068c073b4d98666bd10faf4df4641bca0e76a55b79b16243776de94b16c943801bcfa1eb6c465614c69623d3424fe4c5b81194be106fc2afeadab66c91

Download Submit
C:\Users\Admin\AppData\Local\Temp\3582-490\winpcap-4.13.exe

Filesize
423KB

MD5
ae26452c8b3d97ef2037521ac0dd3a8b

SHA1
3ad99ec2bf6cc4f947bb09be627c91f82a898aa8

SHA256
f28156a96be558dfb83a3d935223a127816ad124b94f92c499400c38078ad842

SHA512
f5012a9600542b46eca137f41d58d6a6d3071aa36ca2b4c0f0119639cdf051c0a0e597c674583c4ec5753f8368ca121282acbf084930d2b1f30671f2032448d9

Download Submit
C:\Users\Admin\AppData\Local\Temp\nso7310.tmp\options.ini

Filesize
319B

MD5
8da5d5edb64a6399059ffb9bf76ed60d

SHA1
7dc822fdd0e6da23a00a274ff79af4bba6b54dc0

SHA256
3e10dccc97bafe7889df9351df4404e7bf0fed77d074cf56a991e2b7e12843c3

SHA512
f744ad6645bc8e48c015444cd1949d9db7fbdc33cf330d9ded9321554f60ac9cd631282665f97e0ea330d7be5188a2267f289e74d21034bc58ffd2979ef0619e

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\nso7310.tmp\InstallOptions.dll

Filesize
14KB

MD5
79327201915b7cf3ba0c5d1a143aa925

SHA1
185b6f5520b1c39d3e7d9d91ed099698fac46d92

SHA256
1edf8dc7b6ef67e7cf68f6b07f38be5b336b5e6b2d1d5500cdb3e121b8381394

SHA512
c51086b7e039c83abb727a33b7f1ccac4fa999373b0423ac4b253e87195a5515d29e98ea2ed64f30406a14db4bf94422d34e6c9db8fc80be5c4e3fc77fd0207e

Download Submit
\Users\Admin\AppData\Local\Temp\nso7310.tmp\System.dll

Filesize
10KB

MD5
5c22bbf6730572e50eed4108af6081df

SHA1
8a13196f4d47ee7de2e35509058db954db10c72a

SHA256
3198d832c222a9907d3d5822116c944fd1c6670a263b775212104a9ecf88beec

SHA512
264b194a50cb523f5758569d918b5f60cb2959c4d091ae6712efc95644700a7bc2bb440a22acdf2285b754691a9cc04633fcc7c5b354dae75c7260d6b27ebb18

Download Submit
\Users\Admin\AppData\Local\Temp\nso7310.tmp\nsExec.dll

Filesize
6KB

MD5
6d376db8c870c88759ab0fac0f91bde4

SHA1
c1df9264442c84858735550af99c1af55204dc31

SHA256
7994b5dbbd63253b8e11ee5d4aa34c61852d5f86a9c4a35ef421de2c26c80cd9

SHA512
ed37d2b97e44c5f2e3bb63dcae3b7eafff0a00ea6d315b6764b322d4dd68ec5d3f9c8a5b8e23cf585612c8b6fdd5bd6eb03e13237c445f990eca86a59579fd23

Download Submit
memory/2504-107-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2504-156-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads