neshta | fc833521c8217cee92276e968b0360ab304d3e3a01053f63580d0139a8c0b13a

Analysis

max time kernel
154s
max time network
158s
platform
windows10-2004_x64
resource
win10v2004-20231020-en
resource tags

arch:x64arch:x86image:win10v2004-20231020-enlocale:en-usos:windows10-2004-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 12 IoCs

resource	yara_rule
behavioral2/files/0x000700000001f077-22.dat	family_neshta
behavioral2/memory/4696-108-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral2/memory/4696-109-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral2/memory/4696-110-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral2/memory/4696-111-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral2/memory/4696-112-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral2/memory/4696-114-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral2/memory/4696-115-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral2/memory/4696-116-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral2/memory/4696-118-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral2/memory/4696-119-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral2/memory/4696-123-0x0000000000400000-0x000000000041B000-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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3350690463-3549324357-1323838019-1000\Control Panel\International\Geo\Nation	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe

Executes dropped EXE 2 IoCs

pid	Process
2784	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
3588	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\Google\Update\1336~1.151\GOOGLE~2.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\INTERN~1\iexplore.exe	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\MSEDGE~3.EXE	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\WINDOW~2\wab.exe	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\WINDOW~4\wmprph.exe	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\AcroCEF\RdrCEF.exe	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\READER~1.EXE	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Java\JAVAUP~1\jusched.exe	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Oracle\Java\javapath\javaw.exe	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\MOZILL~1\MAINTE~1.EXE	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\ADOBEC~1.EXE	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\msedge.exe	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{33D1F~1\VCREDI~1.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\ACROBA~1\Reader\ADelRCP.exe	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\LOGTRA~1.EXE	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\MICROS~1\EDGEUP~1\13147~1.37\MI9C33~1.EXE	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\WINDOW~4\wmpconfig.exe	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\WI8A19~1\ImagingDevices.exe	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\ACROTE~1.EXE	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\WOW_HE~1.EXE	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\ELEVAT~1.EXE	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\MICROS~1\EDGEUP~1\13147~1.37\MIA062~1.EXE	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Temp\EUD1B7.tmp\MIF4FD~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\COMMON~1\Oracle\Java\javapath\javaws.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~3\PACKAG~1\{57A73~1\VC_RED~1.EXE	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Java\JAVAUP~1\jaureg.exe	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Java\JAVAUP~1\jucheck.exe	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\IDENTI~1.EXE	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\MSEDGE~2.EXE	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\MICROS~1\EDGEUP~1\13147~1.37\MID1AD~1.EXE	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\ACROBR~1.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\Google\Update\1336~1.151\GOOGLE~3.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\INTERN~1\ExtExport.exe	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Temp\EUD1B7.tmp\MID1AD~1.EXE	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Temp\EUD1B7.tmp\MIA062~1.EXE	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\WINDOW~4\wmlaunch.exe	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\WINDOW~4\wmplayer.exe	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~3\MICROS~1\CLICKT~1\{9AC08~1\INTEGR~1.EXE	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{CA675~1\VCREDI~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\Google\Update\1336~1.151\GOBD5D~1.EXE	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ielowutil.exe	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\PWAHEL~1.EXE	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Temp\EUD1B7.tmp\MICROS~3.EXE	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~3\Adobe\Setup\{AC76B~1\setup.exe	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\NOTIFI~1.EXE	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\MICROS~1\EDGEUP~1\13147~1.37\MICROS~4.EXE	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\AcroRd32.exe	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\FULLTR~1.EXE	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Adobe\ARM\1.0\AdobeARM.exe	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\COOKIE~1.EXE	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\Eula.exe	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Adobe\ARM\1.0\ADOBEA~1.EXE	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\msedge.exe	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\MICROS~1\EDGEUP~1\13147~1.37\MICROS~1.EXE	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\MSEDGE~1.EXE	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Temp\EUD1B7.tmp\MICROS~1.EXE	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
File opened for modification	C:\PROGRA~2\WINDOW~4\wmpshare.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 4696 wrote to memory of 2784	4696	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe	89
PID 4696 wrote to memory of 2784	4696	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe	89
PID 2784 wrote to memory of 3588	2784	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe	90
PID 2784 wrote to memory of 3588	2784	NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe	90

C:\Users\Admin\AppData\Local\Temp\NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
"C:\Users\Admin\AppData\Local\Temp\NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.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:4696
- 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
  - Suspicious use of WriteProcessMemory
  PID:2784
- - C:\Users\Admin\AppData\Local\Temp\3582-490\NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.exe
    C:\Users\Admin\AppData\Local\Temp\3582-490\NEAS.03106a8f6ba6c7b7172b3c5bf07129d0.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=102.0.4880.55 --initial-client-data=0x274,0x278,0x27c,0x250,0x280,0x7ff73ac82068,0x7ff73ac82078,0x7ff73ac82088
    3⤵
    - Executes dropped EXE
    PID:3588

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

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\PROGRA~2\Adobe\ACROBA~1\Reader\AcroRd32.exe

Filesize
2.4MB

MD5
8ffc3bdf4a1903d9e28b99d1643fc9c7

SHA1
919ba8594db0ae245a8abd80f9f3698826fc6fe5

SHA256
8268d3fefe8ca96a25a73690d14bacf644170ab5e9e70d2f8eeb350a4c83f9f6

SHA512
0b94ead97374d74eaee87e7614ddd3911d2cf66d4c49abbfd06b02c03e5dd56fd00993b4947e8a4bcd9d891fa39cab18cc6b61efc7d0812e91eb3aea9cd1a427

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

Filesize
5.5MB

MD5
cb26e2fbb05a9f7dd1f3ae9f82d1ae8d

SHA1
9cebd2227ff94ed8a85b33ef7b1812c1bd1cf6e6

SHA256
4e0d654796929c717b726721f3e767f0848cbd5ff63cd64158cfc08076bcf85c

SHA512
ca366de8ed13ce87430580091d6eb2bf1f02b4414f9848abd5182cb0853522b6e7decc4c5a715a71aa6154580f01a005d17ee2a5c3d1226440e6636175f18de0

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
C:\Users\Admin\AppData\Local\Temp\3582-490\debug.log

Filesize
244B

MD5
4fa54de9f9babc3db73c2258ffaad555

SHA1
72de4f3e19269d5dda421c2b751d6b8b03f587c9

SHA256
f36f75647fe7a69e21530ef5a4e149d35a5c778d90c1029450ab39ecd17d1105

SHA512
76e14a6184e253378f5c1dc161ba8f55dd81dde39b1ad88bc34d27d9ed5769ba21c9d87e66a03ef4d66611804811ed679520d86cd243dad319865793f95b12e6

Download Submit
memory/4696-111-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/4696-109-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/4696-110-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/4696-108-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/4696-112-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/4696-114-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/4696-115-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/4696-116-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/4696-118-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/4696-119-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/4696-123-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads