neshta | a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab

General

Target

a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
Size

2.1MB
MD5

33fa3379e8a1867e7bc9839a0c148376
SHA1

e90f9eb0b49407926a48e22661baba13277b0e5c
SHA256

a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab
SHA512

06b9a99f751f2ab6460aff5a19bc7d42c619c53f64ec940cffa4e5a7abbe9217cd4edff3d377b23986158796604b5afb3b4e5c1b81031570811839ded98b82cb
SSDEEP

49152:6Pu9vLXK32thBVtTtD7M+9EsNaK7ecFuCKg:6uj7tLz39E4juNg

Score

10^/10

neshta persistence spyware stealer

Malware Config

Signatures

Detect Neshta payload 2 IoCs

Processes:

resource	yara_rule
C:\MSOCache\ALLUSE~1\{90140~1\dwtrig20.exe	family_neshta
behavioral1/memory/2916-83-0x0000000000400000-0x000000000041B000-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

Processes:

a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe

pid process

2228 a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe

pid	process
2228	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe

Loads dropped DLL 2 IoCs

Processes:

a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe

pid	process
2916	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
2916	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe

Modifies system executable filetype association 2 TTPs 1 IoCs

persistence

Modify Registry

T1112

Change Default File Association

T1546.001

Processes:

a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.com \"%1\" %*"	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.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

Processes:

a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe

description	ioc	process
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GO664E~1.EXE	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\Google\Update\DISABL~1.EXE	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ielowutil.exe	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\CLVIEW.EXE	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSQRY32.EXE	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\LICLUA.EXE	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\OFFICE~1\Setup.exe	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\WINDOW~4\ImagingDevices.exe	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{61087~1\VCREDI~1.EXE	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\VPREVIEW.EXE	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\WINDOW~1\wab.exe	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\EQUATION\EQNEDT32.EXE	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\FLTLDR.EXE	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\TextConv\WksConv\Wkconv.exe	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ieinstal.exe	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSOSYNC.EXE	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\WI4223~1\sidebar.exe	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\COMMON~1\ADOBEA~1\Versions\1.0\ADOBEA~1.EXE	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\DW\DWTRIG20.EXE	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{CA675~1\VCREDI~1.EXE	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\Oarpmany.exe	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\ACCICONS.EXE	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{4D8DC~1\VC_RED~1.EXE	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\INFOPATH.EXE	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\POWERPNT.EXE	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\setup_wm.exe	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\A3DUTI~1.EXE	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\1033\ONELEV.EXE	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\XLICONS.EXE	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\WINDOW~1\WinMail.exe	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\ADOBEC~1.EXE	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Adobe\Updater6\ADOBE_~1.EXE	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOF5E2~1.EXE	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\GRAPH.EXE	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\OIS.EXE	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\ONENOTE.EXE	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\SELFCERT.EXE	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{EF6B0~1\VCREDI~1.EXE	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\DW\DW20.EXE	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~1.EXE	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSOHTMED.EXE	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmprph.exe	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmlaunch.exe	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmplayer.exe	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\BCSSync.exe	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\MOZILL~1\UNINST~1.EXE	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOBD5D~1.EXE	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~2.EXE	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\ONENOTEM.EXE	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Resource\Icons\SC_REA~1.EXE	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\ink\mip.exe	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSOUC.EXE	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\SOURCE~1\OSE.EXE	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\CNFNOT32.EXE	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\WINDOW~1\wabmig.exe	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{33D1F~1\VCREDI~1.EXE	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{57A73~1\VC_RED~1.EXE	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\IECONT~1.EXE	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSTORE.EXE	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\SETUPF~1\{AC76B~1\Setup.exe	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\GROOVEMN.EXE	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\misc.exe	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSTORDB.EXE	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\PPTICO.EXE	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe

Drops file in Windows directory 1 IoCs

Processes:

a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe

description ioc process

File opened for modification C:\Windows\svchost.com a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

description	ioc	process
File opened for modification	C:\Windows\svchost.com	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe

Modifies registry class 1 IoCs

Processes:

a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.com \"%1\" %*"	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe

description	pid	process	target process
PID 2916 wrote to memory of 2228	2916	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
PID 2916 wrote to memory of 2228	2916	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
PID 2916 wrote to memory of 2228	2916	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
PID 2916 wrote to memory of 2228	2916	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe

C:\Users\Admin\AppData\Local\Temp\a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
"C:\Users\Admin\AppData\Local\Temp\a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.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:2916

C:\Users\Admin\AppData\Local\Temp\3582-490\a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
"C:\Users\Admin\AppData\Local\Temp\3582-490\a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe"
2⤵
- Executes dropped EXE
PID:2228

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Event Triggered Execution

1

T1546

Change Default File Association

1

T1546.001

Privilege Escalation

Event Triggered Execution

1

T1546

Change Default File Association

1

T1546.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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
\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\a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
Filesize
2.1MB

MD5
9eed1e07ffe5c6d7b0883ad5e2977059

SHA1
e55f322048b8e2a237675d82ea283f9279e4252c

SHA256
3ab362f4df8702552f53cb5606f16c5a389a9ffc9f0bd38a49beae0625f9f473

SHA512
78a57c5119f2f200b2760458cecc4b77bfadbdcdec2d2d46ec2dd13fbdcfedb6a3c1e5ef35b5dc16f87955195d6dfb7f73a90fc6fca61fd2c7f3574d24453b53

Download Submit
memory/2916-83-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

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Downloads