neshta | d6d6f0e865aa4d08871752567f95645ddd966b1a044f048f9f6940a3560c7fd6

Analysis

max time kernel
92s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
30-11-2024 10:41

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General

Target

virussign.com_c258627dc4713143f84e08683d0b75d0.exe
Size

5.6MB
MD5

c258627dc4713143f84e08683d0b75d0
SHA1

ce737c10059a33305ea08be0189c949d5f282c88
SHA256

d6d6f0e865aa4d08871752567f95645ddd966b1a044f048f9f6940a3560c7fd6
SHA512

c3b51312fdc60579a524f6c398b1aff8c0a0dadb0ed893bb6bb6030756e7b00aa6cf7db0848fa93953ff8b1f2d1c18c5494aeaad11ce5bb5367fe7cd458a88b3
SSDEEP

98304:3WpYFiMWrWb3axxkSNGFt01gP3nNqiJ+Jhki7:GpsV3axxzN806vNLQ7

Score

10^/10

neshta discovery persistence spyware stealer

Malware Config

Signatures

Detect Neshta payload 5 IoCs

resource	yara_rule
behavioral2/files/0x000600000002021e-37.dat	family_neshta
behavioral2/memory/4816-117-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral2/memory/4816-118-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral2/memory/4816-119-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral2/memory/4816-121-0x0000000000400000-0x000000000041B000-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

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	virussign.com_c258627dc4713143f84e08683d0b75d0.exe

Executes dropped EXE 2 IoCs

pid	Process
4376	virussign.com_c258627dc4713143f84e08683d0b75d0.exe
5040	virussign.com_c258627dc4713143f84e08683d0b75d0.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\" %*"	virussign.com_c258627dc4713143f84e08683d0b75d0.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\Adobe\ACROBA~1\Reader\ADOBEC~1.EXE	virussign.com_c258627dc4713143f84e08683d0b75d0.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Oracle\Java\javapath\javaw.exe	virussign.com_c258627dc4713143f84e08683d0b75d0.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\PWAHEL~1.EXE	virussign.com_c258627dc4713143f84e08683d0b75d0.exe
File opened for modification	C:\PROGRA~2\MICROS~1\EDGEUP~1\13147~1.37\MICROS~1.EXE	virussign.com_c258627dc4713143f84e08683d0b75d0.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{EF6B0~1\VCREDI~1.EXE	virussign.com_c258627dc4713143f84e08683d0b75d0.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\AcroRd32.exe	virussign.com_c258627dc4713143f84e08683d0b75d0.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\ADelRCP.exe	virussign.com_c258627dc4713143f84e08683d0b75d0.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\INSTAL~1\setup.exe	virussign.com_c258627dc4713143f84e08683d0b75d0.exe
File opened for modification	C:\PROGRA~2\WINDOW~4\wmpshare.exe	virussign.com_c258627dc4713143f84e08683d0b75d0.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\VSTO\10.0\VSTOIN~1.EXE	virussign.com_c258627dc4713143f84e08683d0b75d0.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ielowutil.exe	virussign.com_c258627dc4713143f84e08683d0b75d0.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{61087~1\VCREDI~1.EXE	virussign.com_c258627dc4713143f84e08683d0b75d0.exe
File opened for modification	C:\PROGRA~2\MICROS~1\EDGEUP~1\13147~1.37\MICROS~2.EXE	virussign.com_c258627dc4713143f84e08683d0b75d0.exe
File opened for modification	C:\PROGRA~2\WINDOW~4\wmpconfig.exe	virussign.com_c258627dc4713143f84e08683d0b75d0.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\MSEDGE~1.EXE	virussign.com_c258627dc4713143f84e08683d0b75d0.exe
File opened for modification	C:\PROGRA~2\Google\Update\DISABL~1.EXE	virussign.com_c258627dc4713143f84e08683d0b75d0.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\ELEVAT~1.EXE	virussign.com_c258627dc4713143f84e08683d0b75d0.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Oracle\Java\javapath\javaws.exe	virussign.com_c258627dc4713143f84e08683d0b75d0.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.371\GOBD5D~1.EXE	virussign.com_c258627dc4713143f84e08683d0b75d0.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.371\GOOGLE~2.EXE	virussign.com_c258627dc4713143f84e08683d0b75d0.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{63880~1\WINDOW~1.EXE	virussign.com_c258627dc4713143f84e08683d0b75d0.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\arh.exe	virussign.com_c258627dc4713143f84e08683d0b75d0.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\FULLTR~1.EXE	virussign.com_c258627dc4713143f84e08683d0b75d0.exe
File opened for modification	C:\PROGRA~2\WINDOW~4\wmprph.exe	virussign.com_c258627dc4713143f84e08683d0b75d0.exe
File opened for modification	C:\PROGRA~3\MICROS~1\CLICKT~1\{9AC08~1\INTEGR~1.EXE	virussign.com_c258627dc4713143f84e08683d0b75d0.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{EF5AF~1\WINDOW~1.EXE	virussign.com_c258627dc4713143f84e08683d0b75d0.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ieinstal.exe	virussign.com_c258627dc4713143f84e08683d0b75d0.exe
File opened for modification	C:\PROGRA~2\WINDOW~4\wmlaunch.exe	virussign.com_c258627dc4713143f84e08683d0b75d0.exe
File opened for modification	C:\PROGRA~2\MOZILL~1\MAINTE~1.EXE	virussign.com_c258627dc4713143f84e08683d0b75d0.exe
File opened for modification	C:\PROGRA~2\WINDOW~3\ACCESS~1\wordpad.exe	virussign.com_c258627dc4713143f84e08683d0b75d0.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{4D8DC~1\VC_RED~1.EXE	virussign.com_c258627dc4713143f84e08683d0b75d0.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\plug_ins\PI_BRO~1\32BITM~1.EXE	virussign.com_c258627dc4713143f84e08683d0b75d0.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\PWAHEL~1.EXE	virussign.com_c258627dc4713143f84e08683d0b75d0.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ExtExport.exe	virussign.com_c258627dc4713143f84e08683d0b75d0.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\msedge.exe	virussign.com_c258627dc4713143f84e08683d0b75d0.exe
File opened for modification	C:\PROGRA~2\WINDOW~2\wab.exe	virussign.com_c258627dc4713143f84e08683d0b75d0.exe
File opened for modification	C:\PROGRA~2\WINDOW~2\wabmig.exe	virussign.com_c258627dc4713143f84e08683d0b75d0.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Adobe\ARM\1.0\AdobeARM.exe	virussign.com_c258627dc4713143f84e08683d0b75d0.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Java\JAVAUP~1\jaureg.exe	virussign.com_c258627dc4713143f84e08683d0b75d0.exe
File opened for modification	C:\PROGRA~2\WINDOW~4\setup_wm.exe	virussign.com_c258627dc4713143f84e08683d0b75d0.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{57A73~1\VC_RED~1.EXE	virussign.com_c258627dc4713143f84e08683d0b75d0.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\AcroCEF\RdrCEF.exe	virussign.com_c258627dc4713143f84e08683d0b75d0.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.371\GOF5E2~1.EXE	virussign.com_c258627dc4713143f84e08683d0b75d0.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\IDENTI~1.EXE	virussign.com_c258627dc4713143f84e08683d0b75d0.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\MSEDGE~1.EXE	virussign.com_c258627dc4713143f84e08683d0b75d0.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{CA675~1\VCREDI~1.EXE	virussign.com_c258627dc4713143f84e08683d0b75d0.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\Eula.exe	virussign.com_c258627dc4713143f84e08683d0b75d0.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\plug_ins\PI_BRO~1\64BITM~1.EXE	virussign.com_c258627dc4713143f84e08683d0b75d0.exe
File opened for modification	C:\PROGRA~2\WINDOW~4\wmplayer.exe	virussign.com_c258627dc4713143f84e08683d0b75d0.exe
File opened for modification	C:\PROGRA~3\Adobe\Setup\{AC76B~1\setup.exe	virussign.com_c258627dc4713143f84e08683d0b75d0.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\WOW_HE~1.EXE	virussign.com_c258627dc4713143f84e08683d0b75d0.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.371\GOOGLE~3.EXE	virussign.com_c258627dc4713143f84e08683d0b75d0.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\LOGTRA~1.EXE	virussign.com_c258627dc4713143f84e08683d0b75d0.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\MSEDGE~3.EXE	virussign.com_c258627dc4713143f84e08683d0b75d0.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\BHO\IE_TO_~1.EXE	virussign.com_c258627dc4713143f84e08683d0b75d0.exe
File opened for modification	C:\PROGRA~2\MICROS~1\EDGEUP~1\13147~1.37\MICROS~3.EXE	virussign.com_c258627dc4713143f84e08683d0b75d0.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\ACROTE~1.EXE	virussign.com_c258627dc4713143f84e08683d0b75d0.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\READER~1.EXE	virussign.com_c258627dc4713143f84e08683d0b75d0.exe
File opened for modification	C:\PROGRA~2\INTERN~1\iexplore.exe	virussign.com_c258627dc4713143f84e08683d0b75d0.exe
File opened for modification	C:\PROGRA~2\MICROS~1\EDGEUP~1\13147~1.37\MICROS~4.EXE	virussign.com_c258627dc4713143f84e08683d0b75d0.exe
File opened for modification	C:\PROGRA~2\MICROS~1\EDGEUP~1\13147~1.37\MID1AD~1.EXE	virussign.com_c258627dc4713143f84e08683d0b75d0.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Adobe\ARM\1.0\ADOBEA~1.EXE	virussign.com_c258627dc4713143f84e08683d0b75d0.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.371\GOOGLE~4.EXE	virussign.com_c258627dc4713143f84e08683d0b75d0.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\MSInfo\msinfo32.exe	virussign.com_c258627dc4713143f84e08683d0b75d0.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\svchost.com	virussign.com_c258627dc4713143f84e08683d0b75d0.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 1 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	virussign.com_c258627dc4713143f84e08683d0b75d0.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\" %*"	virussign.com_c258627dc4713143f84e08683d0b75d0.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
5040	virussign.com_c258627dc4713143f84e08683d0b75d0.exe
5040	virussign.com_c258627dc4713143f84e08683d0b75d0.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 4816 wrote to memory of 4376	4816	virussign.com_c258627dc4713143f84e08683d0b75d0.exe	83
PID 4816 wrote to memory of 4376	4816	virussign.com_c258627dc4713143f84e08683d0b75d0.exe	83
PID 4376 wrote to memory of 5040	4376	virussign.com_c258627dc4713143f84e08683d0b75d0.exe	84
PID 4376 wrote to memory of 5040	4376	virussign.com_c258627dc4713143f84e08683d0b75d0.exe	84

C:\Users\Admin\AppData\Local\Temp\virussign.com_c258627dc4713143f84e08683d0b75d0.exe
"C:\Users\Admin\AppData\Local\Temp\virussign.com_c258627dc4713143f84e08683d0b75d0.exe"
1⤵
- Checks computer location settings
- 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:4816
- C:\Users\Admin\AppData\Local\Temp\3582-490\virussign.com_c258627dc4713143f84e08683d0b75d0.exe
  "C:\Users\Admin\AppData\Local\Temp\3582-490\virussign.com_c258627dc4713143f84e08683d0b75d0.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of WriteProcessMemory
  PID:4376
- - C:\Users\Admin\AppData\Local\Temp\3582-490\virussign.com_c258627dc4713143f84e08683d0b75d0.exe
    C:\Users\Admin\AppData\Local\Temp\3582-490\virussign.com_c258627dc4713143f84e08683d0b75d0.exe --type=crashpad-handler /prefetch:7 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Roaming\Opera Software\Opera GX Stable\Crash Reports" "--crash-count-file=C:\Users\Admin\AppData\Roaming\Opera Software\Opera GX Stable\crash_count.txt" --url=https://crashstats-collector.opera.com/collector/submit --annotation=channel=Stable --annotation=plat=Win64 --annotation=prod=OperaDesktopGX --annotation=ver=95.0.4635.88 --initial-client-data=0x264,0x268,0x26c,0x240,0x270,0x7ff68bdbdbf8,0x7ff68bdbdc08,0x7ff68bdbdc18
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    PID:5040

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:\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\virussign.com_c258627dc4713143f84e08683d0b75d0.exe

Filesize
5.6MB

MD5
386238555736770273cc52c7b62992d1

SHA1
eabd86814cf03cf3a1323c58cdfba914e3505ccc

SHA256
16ba4e3b2788a938e2ce81b2d6aedeaf35926b1d03573bf6574423cd4d39ab85

SHA512
ddad84d886a803a9c978665fa126c32671719edf8504e42b8ace0b161d14d982501f8fc45490b409af548a24a54a71ed19a9b8c1394cda7c9be018c7d34afa9e

Download Submit
C:\Users\Admin\AppData\Roaming\Opera Software\Opera GX Stable\Crash Reports\reports\3364beef-a781-4d19-8f60-7913ddca54d5.dmp

Filesize
268KB

MD5
260c1e6cc3700c60127e3693db1d7b1b

SHA1
d782d502daa73d29b15939d4c103cc0915e7ad5f

SHA256
40bf80cc820454d1aee498332fe366a5b3927ced00ff3908cd15ebb906549669

SHA512
e6b0869ded61d173e7c3000be3c288f658db231bf26fe7f03409fcb7ff13df8a1a8704c5958da8e9ef0e52ea18fae73e00f831c79f86b4608dc530771b171f8c

Download Submit
C:\Users\Admin\AppData\Roaming\Opera Software\Opera GX Stable\Crash Reports\settings.dat

Filesize
40B

MD5
e3f4369d5835d42831c2a87214f31ec1

SHA1
ceb8a661a430194bd93a4a6ed565f76b87dbbb67

SHA256
befac4e84b018e5c6c01e57388be367c4eb210d1fa7a7111bad8027dfa3ad291

SHA512
d7310e4fdeeae64a8776467adeff4bc19f9a497f1e3f5ff77a586854cd1f152f03f964c1f3f00c0056bacb1f69bb0164aac9978c853aff846b3dad03031d5af5

Download Submit
memory/4816-117-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/4816-118-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/4816-119-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/4816-121-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download