neshta | fc833521c8217cee92276e968b0360ab304d3e3a01053f63580d0139a8c0b13a

Analysis

max time kernel
122s
max time network
128s
platform
windows7_x64
resource
win7-20231023-en
resource tags

arch:x64arch:x86image:win7-20231023-enlocale:en-usos:windows7-x64system
submitted
28-10-2023 18:01

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General

Target

NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
Size

5.6MB
MD5

03106a8f6ba6c7b7172b3c5bf07129d0
SHA1

3f55d8d9978c6bd77e4a50fa8def1ae0955c773f
SHA256

fc833521c8217cee92276e968b0360ab304d3e3a01053f63580d0139a8c0b13a
SHA512

73b1486696527a901ba07e1a19a24bec34312b6f096bc5e8b302ca91b46cd0e5c80118debf78be0fe62f0c08e5181e282534ad6f7ee21d987e5ce9a21a9f6f5f
SSDEEP

49152:Dc8+u/2bQC+NL2PmrkoCbGgdQMuzVZywWNSQy/E2LJuVzn1498B7MV33/q2kG1N6:vkj4L2obbTcT1B83vdr0Ol/Wy5i

Score

10^/10

neshta persistence spyware stealer

Malware Config

Signatures

Detect Neshta payload 5 IoCs

resource	yara_rule
behavioral1/files/0x0001000000010322-9.dat	family_neshta
behavioral1/memory/2068-82-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral1/memory/2068-83-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral1/memory/2068-84-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral1/memory/2068-86-0x0000000000400000-0x000000000041B000-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
2348	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe

Loads dropped DLL 2 IoCs

pid	Process
2068	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
2068	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.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\" %*"	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe

Reads user/profile data of web browsers 2 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

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File opened for modification	C:\PROGRA~2\WINDOW~1\wabmig.exe	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\WMPDMC.exe	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Adobe\Updater6\ADOBEU~1.EXE	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\Google\Update\DISABL~1.EXE	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ieinstal.exe	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSOUC.EXE	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmprph.exe	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\ADOBEC~1.EXE	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\MSInfo\msinfo32.exe	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\INFOPATH.EXE	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmpconfig.exe	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\OFFICE~1\Setup.exe	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\VSTO\10.0\VSTOIN~1.EXE	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\setup_wm.exe	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\Oarpmany.exe	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\WINWORD.EXE	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\WINDOW~1\wab.exe	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{4D8DC~1\VC_RED~1.EXE	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\A3DUTI~1.EXE	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\AcroRd32.exe	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\TextConv\WksConv\Wkconv.exe	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~1.EXE	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOBD5D~1.EXE	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmplayer.exe	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\misc.exe	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\POWERPNT.EXE	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\MOZILL~1\UNINST~1.EXE	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\MSOXMLED.EXE	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\OFFICE~1\ODeploy.exe	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~3.EXE	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\GROOVEMN.EXE	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Resource\Icons\SC_REA~1.EXE	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{EF6B0~1\VCREDI~1.EXE	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\1033\ONELEV.EXE	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\GRAPH.EXE	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\VPREVIEW.EXE	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{61087~1\VCREDI~1.EXE	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\ACCICONS.EXE	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSOHTMED.EXE	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSQRY32.EXE	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\NAMECO~1.EXE	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\Eula.exe	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\SETUPF~1\{AC76B~1\Setup.exe	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\EQUATION\EQNEDT32.EXE	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~4.EXE	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmlaunch.exe	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\INTERN~1\iexplore.exe	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\BCSSync.exe	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\CLVIEW.EXE	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSOSYNC.EXE	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\COMMON~1\ADOBEA~1\Versions\1.0\ADOBEA~1.EXE	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\ink\mip.exe	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~2.EXE	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOF5E2~1.EXE	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\WI4223~1\sidebar.exe	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Adobe\Updater6\ADOBE_~1.EXE	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\ONENOTE.EXE	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\WINDOW~2\ACCESS~1\wordpad.exe	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSTORDB.EXE	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\ONENOTEM.EXE	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\WINDOW~1\WinMail.exe	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmpshare.exe	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\ACROBR~1.EXE	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\DW\DW20.EXE	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\svchost.com	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe

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

System Information Discovery
T1082

Modifies registry class 1 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.com \"%1\" %*"	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2068 wrote to memory of 2348	2068	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe	28
PID 2068 wrote to memory of 2348	2068	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe	28
PID 2068 wrote to memory of 2348	2068	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe	28
PID 2068 wrote to memory of 2348	2068	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe	28

C:\Users\Admin\AppData\Local\Temp\NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
"C:\Users\Admin\AppData\Local\Temp\NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe"
1⤵
- Loads dropped DLL
- Modifies system executable filetype association
- Drops file in Program Files directory
- Drops file in Windows directory
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2068
- C:\Users\Admin\AppData\Local\Temp\3582-490\NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
  "C:\Users\Admin\AppData\Local\Temp\3582-490\NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe"
  2⤵
  - Executes dropped EXE
  PID:2348

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

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

System Information Discovery

T1082

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:\Users\Admin\AppData\Local\Temp\3582-490\NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe

Filesize
5.5MB

MD5
cb26e2fbb05a9f7dd1f3ae9f82d1ae8d

SHA1
9cebd2227ff94ed8a85b33ef7b1812c1bd1cf6e6

SHA256
4e0d654796929c717b726721f3e767f0848cbd5ff63cd64158cfc08076bcf85c

SHA512
ca366de8ed13ce87430580091d6eb2bf1f02b4414f9848abd5182cb0853522b6e7decc4c5a715a71aa6154580f01a005d17ee2a5c3d1226440e6636175f18de0

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\NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe

Filesize
5.5MB

MD5
cb26e2fbb05a9f7dd1f3ae9f82d1ae8d

SHA1
9cebd2227ff94ed8a85b33ef7b1812c1bd1cf6e6

SHA256
4e0d654796929c717b726721f3e767f0848cbd5ff63cd64158cfc08076bcf85c

SHA512
ca366de8ed13ce87430580091d6eb2bf1f02b4414f9848abd5182cb0853522b6e7decc4c5a715a71aa6154580f01a005d17ee2a5c3d1226440e6636175f18de0

Download Submit
memory/2068-82-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2068-83-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2068-84-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2068-86-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads