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 3 IoCs

Processes:

resource	yara_rule
C:\PROGRA~2\Adobe\ACROBA~1\Reader\ACROTE~1.EXE	family_neshta
behavioral2/memory/2620-98-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral2/memory/2620-100-0x0000000000400000-0x000000000041B000-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

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

Processes:

a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2860750803-256193626-1801997576-1000\Control Panel\International\Geo\Nation	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe

Executes dropped EXE 1 IoCs

Processes:

a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe

pid process

1448 a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe

pid	process
1448	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\MICROS~1\Edge\APPLIC~1\920902~1.67\ELEVAT~1.EXE	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\MICROS~1\EDGEUP~1\13185~1.29\MI391D~1.EXE	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\WINDOW~3\ACCESS~1\wordpad.exe	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\WI8A19~1\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\Adobe\ACROBA~1\Reader\AcroRd32.exe	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\plug_ins\PI_BRO~1\64BITM~1.EXE	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\WINDOW~4\wmplayer.exe	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~3\MICROS~1\CLICKT~1\{9AC08~1\INTEGR~1.EXE	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{D87AE~1\WINDOW~1.EXE	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\MICROS~1\EDGEUP~1\13185~1.29\MIA062~1.EXE	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\WINDOW~4\wmpconfig.exe	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Java\JAVAUP~1\jaureg.exe	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Java\JAVAUP~1\jucheck.exe	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\VSTO\10.0\VSTOIN~1.EXE	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Oracle\Java\javapath\javaws.exe	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.371\GOOGLE~3.EXE	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ieinstal.exe	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\LOGTRA~1.EXE	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Adobe\ARM\1.0\AdobeARM.exe	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\INSTAL~1\setup.exe	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\MSEDGE~2.EXE	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\PWAHEL~1.EXE	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\MOZILL~1\MAINTE~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\Edge\APPLIC~1\920902~1.67\COOKIE~1.EXE	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\NOTIFI~1.EXE	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{EF5AF~1\WINDOW~1.EXE	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\Eula.exe	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\FULLTR~1.EXE	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Adobe\ARM\1.0\ADOBEA~1.EXE	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.371\GO664E~1.EXE	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\MSEDGE~1.EXE	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~3\Adobe\Setup\{AC76B~1\setup.exe	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\ADelRCP.exe	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\arh.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\INTERN~1\iexplore.exe	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\ADOBEC~1.EXE	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.371\GOF5E2~1.EXE	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\WINDOW~4\setup_wm.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\MICROS~1\EDGEUP~1\13185~1.29\MI9C33~1.EXE	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\WINDOW~2\wab.exe	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\MICROS~1\EDGEUP~1\MicrosoftEdgeUpdate.exe	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\WINDOW~4\wmpshare.exe	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\ACROTE~1.EXE	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\Browser\WCCHRO~1\WCCHRO~1.EXE	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\MOZILL~1\UNINST~1.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~2\COMMON~1\Java\JAVAUP~1\jusched.exe	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\msedge.exe	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\IDENTI~1.EXE	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\WINDOW~4\wmprph.exe	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\READER~1.EXE	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ExtExport.exe	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\PWAHEL~1.EXE	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\MICROS~1\EDGEUP~1\13185~1.29\MICROS~4.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~3\PACKAG~1\{57A73~1\VC_RED~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\MICROS~1\Edge\APPLIC~1\920902~1.67\BHO\IE_TO_~1.EXE	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.371\GOOGLE~1.EXE	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\MSEDGE~1.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 2 IoCs

Processes:

a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe

description	pid	process	target process
PID 2620 wrote to memory of 1448	2620	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
PID 2620 wrote to memory of 1448	2620	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe	a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe

C:\Users\Admin\AppData\Local\Temp\a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
"C:\Users\Admin\AppData\Local\Temp\a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe"
1⤵
- Checks computer location settings
- Modifies system executable filetype association
- Drops file in Program Files directory
- Drops file in Windows directory
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2620

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:1448

Network

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

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

C:\PROGRA~2\Adobe\ACROBA~1\Reader\ACROTE~1.EXE
Filesize
86KB

MD5
3b73078a714bf61d1c19ebc3afc0e454

SHA1
9abeabd74613a2f533e2244c9ee6f967188e4e7e

SHA256
ded54d1fcca07b6bff2bc3b9a1131eac29ff1f836e5d7a7c5c325ec5abe96e29

SHA512
75959d4e8a7649c3268b551a2a378e6d27c0bfb03d2422ebeeb67b0a3f78c079473214057518930f2d72773ce79b106fd2d78405e8e3d8883459dcbb49c163c4

Download Submit
C:\Users\Admin\AppData\Local\Temp\3582-490\a4f2b9bc041d8119ef1dfcfe0a5328d35ce05b0900bff6ee73aa2121a749f0ab.exe
Filesize
2.1MB

MD5
9eed1e07ffe5c6d7b0883ad5e2977059

SHA1
e55f322048b8e2a237675d82ea283f9279e4252c

SHA256
3ab362f4df8702552f53cb5606f16c5a389a9ffc9f0bd38a49beae0625f9f473

SHA512
78a57c5119f2f200b2760458cecc4b77bfadbdcdec2d2d46ec2dd13fbdcfedb6a3c1e5ef35b5dc16f87955195d6dfb7f73a90fc6fca61fd2c7f3574d24453b53

Download Submit
memory/2620-98-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2620-100-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads