neshta | fa81f39d0500befc912f496a27c9a6c5335de87c38753d001ece208da06b38a0

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
12/10/2024, 21:46

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General

Target

fa81f39d0500befc912f496a27c9a6c5335de87c38753d001ece208da06b38a0N.exe
Size

630KB
MD5

32216c27aed2684047129900e82b06e0
SHA1

6a49247ac7b95cac499335083730fa95395a1ffd
SHA256

fa81f39d0500befc912f496a27c9a6c5335de87c38753d001ece208da06b38a0
SHA512

20ac11792bf9e9c38aa1f27f241aedf996c485279064db1bc312cc7565be6dabf41dc228bedd6377a23a2ed91f6fea9679ccba4cb337d570325117ce6fef9a8a
SSDEEP

12288:LppppppppppppppppppppppppARppppppppppppppppppppppppA34pppppppppp:sm1z10

Score

10^/10

neshta discovery persistence spyware stealer

Malware Config

Signatures

Detect Neshta payload 3 IoCs

resource	yara_rule
behavioral1/files/0x0001000000010314-10.dat	family_neshta
behavioral1/memory/860-93-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral1/memory/860-95-0x0000000000400000-0x000000000041B000-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

Executes dropped EXE 1 IoCs

pid	Process
1672	fa81f39d0500befc912f496a27c9a6c5335de87c38753d001ece208da06b38a0N.exe

Loads dropped DLL 7 IoCs

pid	Process
860	fa81f39d0500befc912f496a27c9a6c5335de87c38753d001ece208da06b38a0N.exe
860	fa81f39d0500befc912f496a27c9a6c5335de87c38753d001ece208da06b38a0N.exe
2804	WerFault.exe
2804	WerFault.exe
2804	WerFault.exe
2804	WerFault.exe
2804	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\" %*"	fa81f39d0500befc912f496a27c9a6c5335de87c38753d001ece208da06b38a0N.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\CLVIEW.EXE	fa81f39d0500befc912f496a27c9a6c5335de87c38753d001ece208da06b38a0N.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSOSYNC.EXE	fa81f39d0500befc912f496a27c9a6c5335de87c38753d001ece208da06b38a0N.exe
File opened for modification	C:\PROGRA~2\INTERN~1\iexplore.exe	fa81f39d0500befc912f496a27c9a6c5335de87c38753d001ece208da06b38a0N.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOF5E2~1.EXE	fa81f39d0500befc912f496a27c9a6c5335de87c38753d001ece208da06b38a0N.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ielowutil.exe	fa81f39d0500befc912f496a27c9a6c5335de87c38753d001ece208da06b38a0N.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\IECONT~1.EXE	fa81f39d0500befc912f496a27c9a6c5335de87c38753d001ece208da06b38a0N.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSOUC.EXE	fa81f39d0500befc912f496a27c9a6c5335de87c38753d001ece208da06b38a0N.exe
File opened for modification	C:\PROGRA~2\WINDOW~1\wabmig.exe	fa81f39d0500befc912f496a27c9a6c5335de87c38753d001ece208da06b38a0N.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{57A73~1\VC_RED~1.EXE	fa81f39d0500befc912f496a27c9a6c5335de87c38753d001ece208da06b38a0N.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{CA675~1\VCREDI~1.EXE	fa81f39d0500befc912f496a27c9a6c5335de87c38753d001ece208da06b38a0N.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\DW\DW20.EXE	fa81f39d0500befc912f496a27c9a6c5335de87c38753d001ece208da06b38a0N.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{EF6B0~1\VCREDI~1.EXE	fa81f39d0500befc912f496a27c9a6c5335de87c38753d001ece208da06b38a0N.exe
File opened for modification	C:\PROGRA~2\COMMON~1\ADOBEA~1\Versions\1.0\ADOBEA~1.EXE	fa81f39d0500befc912f496a27c9a6c5335de87c38753d001ece208da06b38a0N.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~1.EXE	fa81f39d0500befc912f496a27c9a6c5335de87c38753d001ece208da06b38a0N.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSOHTMED.EXE	fa81f39d0500befc912f496a27c9a6c5335de87c38753d001ece208da06b38a0N.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSTORE.EXE	fa81f39d0500befc912f496a27c9a6c5335de87c38753d001ece208da06b38a0N.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{33D1F~1\VCREDI~1.EXE	fa81f39d0500befc912f496a27c9a6c5335de87c38753d001ece208da06b38a0N.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Adobe\Updater6\ADOBE_~1.EXE	fa81f39d0500befc912f496a27c9a6c5335de87c38753d001ece208da06b38a0N.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\VSTO\10.0\VSTOIN~1.EXE	fa81f39d0500befc912f496a27c9a6c5335de87c38753d001ece208da06b38a0N.exe
File opened for modification	C:\PROGRA~2\WINDOW~1\WinMail.exe	fa81f39d0500befc912f496a27c9a6c5335de87c38753d001ece208da06b38a0N.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmlaunch.exe	fa81f39d0500befc912f496a27c9a6c5335de87c38753d001ece208da06b38a0N.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\WMPDMC.exe	fa81f39d0500befc912f496a27c9a6c5335de87c38753d001ece208da06b38a0N.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{61087~1\VCREDI~1.EXE	fa81f39d0500befc912f496a27c9a6c5335de87c38753d001ece208da06b38a0N.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\A3DUTI~1.EXE	fa81f39d0500befc912f496a27c9a6c5335de87c38753d001ece208da06b38a0N.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\Oarpmany.exe	fa81f39d0500befc912f496a27c9a6c5335de87c38753d001ece208da06b38a0N.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~2.EXE	fa81f39d0500befc912f496a27c9a6c5335de87c38753d001ece208da06b38a0N.exe
File opened for modification	C:\PROGRA~2\Google\Update\DISABL~1.EXE	fa81f39d0500befc912f496a27c9a6c5335de87c38753d001ece208da06b38a0N.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ieinstal.exe	fa81f39d0500befc912f496a27c9a6c5335de87c38753d001ece208da06b38a0N.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\MSInfo\msinfo32.exe	fa81f39d0500befc912f496a27c9a6c5335de87c38753d001ece208da06b38a0N.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\NAMECO~1.EXE	fa81f39d0500befc912f496a27c9a6c5335de87c38753d001ece208da06b38a0N.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\OIS.EXE	fa81f39d0500befc912f496a27c9a6c5335de87c38753d001ece208da06b38a0N.exe
File opened for modification	C:\PROGRA~2\MOZILL~1\UNINST~1.EXE	fa81f39d0500befc912f496a27c9a6c5335de87c38753d001ece208da06b38a0N.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\FLTLDR.EXE	fa81f39d0500befc912f496a27c9a6c5335de87c38753d001ece208da06b38a0N.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\ADOBEC~1.EXE	fa81f39d0500befc912f496a27c9a6c5335de87c38753d001ece208da06b38a0N.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\DW\DWTRIG20.EXE	fa81f39d0500befc912f496a27c9a6c5335de87c38753d001ece208da06b38a0N.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\OFFICE~1\ODeploy.exe	fa81f39d0500befc912f496a27c9a6c5335de87c38753d001ece208da06b38a0N.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\TextConv\WksConv\Wkconv.exe	fa81f39d0500befc912f496a27c9a6c5335de87c38753d001ece208da06b38a0N.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\INFOPATH.EXE	fa81f39d0500befc912f496a27c9a6c5335de87c38753d001ece208da06b38a0N.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\ACROBR~1.EXE	fa81f39d0500befc912f496a27c9a6c5335de87c38753d001ece208da06b38a0N.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\GROOVEMN.EXE	fa81f39d0500befc912f496a27c9a6c5335de87c38753d001ece208da06b38a0N.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\WORDICON.EXE	fa81f39d0500befc912f496a27c9a6c5335de87c38753d001ece208da06b38a0N.exe
File opened for modification	C:\PROGRA~2\MOZILL~1\MAINTE~1.EXE	fa81f39d0500befc912f496a27c9a6c5335de87c38753d001ece208da06b38a0N.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\BCSSync.exe	fa81f39d0500befc912f496a27c9a6c5335de87c38753d001ece208da06b38a0N.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\1033\ONELEV.EXE	fa81f39d0500befc912f496a27c9a6c5335de87c38753d001ece208da06b38a0N.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\PPTICO.EXE	fa81f39d0500befc912f496a27c9a6c5335de87c38753d001ece208da06b38a0N.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\VPREVIEW.EXE	fa81f39d0500befc912f496a27c9a6c5335de87c38753d001ece208da06b38a0N.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmplayer.exe	fa81f39d0500befc912f496a27c9a6c5335de87c38753d001ece208da06b38a0N.exe
File opened for modification	C:\PROGRA~2\WINDOW~4\ImagingDevices.exe	fa81f39d0500befc912f496a27c9a6c5335de87c38753d001ece208da06b38a0N.exe
File opened for modification	C:\PROGRA~2\WI4223~1\sidebar.exe	fa81f39d0500befc912f496a27c9a6c5335de87c38753d001ece208da06b38a0N.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Adobe\Updater6\ADOBEU~1.EXE	fa81f39d0500befc912f496a27c9a6c5335de87c38753d001ece208da06b38a0N.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\SOURCE~1\OSE.EXE	fa81f39d0500befc912f496a27c9a6c5335de87c38753d001ece208da06b38a0N.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\ONENOTEM.EXE	fa81f39d0500befc912f496a27c9a6c5335de87c38753d001ece208da06b38a0N.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\setup_wm.exe	fa81f39d0500befc912f496a27c9a6c5335de87c38753d001ece208da06b38a0N.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmprph.exe	fa81f39d0500befc912f496a27c9a6c5335de87c38753d001ece208da06b38a0N.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\Eula.exe	fa81f39d0500befc912f496a27c9a6c5335de87c38753d001ece208da06b38a0N.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\LICLUA.EXE	fa81f39d0500befc912f496a27c9a6c5335de87c38753d001ece208da06b38a0N.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~3.EXE	fa81f39d0500befc912f496a27c9a6c5335de87c38753d001ece208da06b38a0N.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSQRY32.EXE	fa81f39d0500befc912f496a27c9a6c5335de87c38753d001ece208da06b38a0N.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSTORDB.EXE	fa81f39d0500befc912f496a27c9a6c5335de87c38753d001ece208da06b38a0N.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\WINWORD.EXE	fa81f39d0500befc912f496a27c9a6c5335de87c38753d001ece208da06b38a0N.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\XLICONS.EXE	fa81f39d0500befc912f496a27c9a6c5335de87c38753d001ece208da06b38a0N.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmpconfig.exe	fa81f39d0500befc912f496a27c9a6c5335de87c38753d001ece208da06b38a0N.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\EQUATION\EQNEDT32.EXE	fa81f39d0500befc912f496a27c9a6c5335de87c38753d001ece208da06b38a0N.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\ACCICONS.EXE	fa81f39d0500befc912f496a27c9a6c5335de87c38753d001ece208da06b38a0N.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\svchost.com	fa81f39d0500befc912f496a27c9a6c5335de87c38753d001ece208da06b38a0N.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2804	1672	WerFault.exe	30

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	fa81f39d0500befc912f496a27c9a6c5335de87c38753d001ece208da06b38a0N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fa81f39d0500befc912f496a27c9a6c5335de87c38753d001ece208da06b38a0N.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\" %*"	fa81f39d0500befc912f496a27c9a6c5335de87c38753d001ece208da06b38a0N.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 860 wrote to memory of 1672	860	fa81f39d0500befc912f496a27c9a6c5335de87c38753d001ece208da06b38a0N.exe	30
PID 860 wrote to memory of 1672	860	fa81f39d0500befc912f496a27c9a6c5335de87c38753d001ece208da06b38a0N.exe	30
PID 860 wrote to memory of 1672	860	fa81f39d0500befc912f496a27c9a6c5335de87c38753d001ece208da06b38a0N.exe	30
PID 860 wrote to memory of 1672	860	fa81f39d0500befc912f496a27c9a6c5335de87c38753d001ece208da06b38a0N.exe	30
PID 1672 wrote to memory of 2804	1672	fa81f39d0500befc912f496a27c9a6c5335de87c38753d001ece208da06b38a0N.exe	31
PID 1672 wrote to memory of 2804	1672	fa81f39d0500befc912f496a27c9a6c5335de87c38753d001ece208da06b38a0N.exe	31
PID 1672 wrote to memory of 2804	1672	fa81f39d0500befc912f496a27c9a6c5335de87c38753d001ece208da06b38a0N.exe	31
PID 1672 wrote to memory of 2804	1672	fa81f39d0500befc912f496a27c9a6c5335de87c38753d001ece208da06b38a0N.exe	31

C:\Users\Admin\AppData\Local\Temp\fa81f39d0500befc912f496a27c9a6c5335de87c38753d001ece208da06b38a0N.exe
"C:\Users\Admin\AppData\Local\Temp\fa81f39d0500befc912f496a27c9a6c5335de87c38753d001ece208da06b38a0N.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:860
- C:\Users\Admin\AppData\Local\Temp\3582-490\fa81f39d0500befc912f496a27c9a6c5335de87c38753d001ece208da06b38a0N.exe
  "C:\Users\Admin\AppData\Local\Temp\3582-490\fa81f39d0500befc912f496a27c9a6c5335de87c38753d001ece208da06b38a0N.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1672
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1672 -s 656
    3⤵
    - Loads dropped DLL
    - Program crash
    PID:2804

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\fa81f39d0500befc912f496a27c9a6c5335de87c38753d001ece208da06b38a0N.exe

Filesize
589KB

MD5
d00876eef503406062f77bbac0b15982

SHA1
e36ae4f739524ae34e50c21461d9447897f69138

SHA256
43324a753bcd54b913ba4d0ce6c46b41a256904ab14080e56a49978a84396b56

SHA512
e799c134574515568b45b0b73242eca57449826b7a3dfffa67c60c5a66ff4e5dbb8a308e9463967eeaa5ed41413cab8fe07157f2afe3a8fc1f459d94b83a0ca8

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/860-93-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/860-95-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1672-12-0x000000007489E000-0x000000007489F000-memory.dmp

Filesize
4KB

Download
memory/1672-13-0x0000000000C40000-0x0000000000CD8000-memory.dmp

Filesize
608KB

Download
memory/1672-27-0x0000000074890000-0x0000000074F7E000-memory.dmp

Filesize
6.9MB

Download
memory/1672-92-0x0000000074890000-0x0000000074F7E000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads