neshta | a58aca3d20dec5c5f100ade6a9f6182f5f7a783f8269cb032e20780041e44f08

General

Target

vbc.exe
Size

465KB
MD5

fd31986696a39355b9e100754b4724e3
SHA1

4f1045ce5437b5a761c02a1446c0defd89280ddb
SHA256

a58aca3d20dec5c5f100ade6a9f6182f5f7a783f8269cb032e20780041e44f08
SHA512

bbb78d8f77973f2349a0a82e3e9ab046b79cdd37053375c5d21b7297c36b587e0809bced70f38d4d621af28f04fdca5701c294e04d4cf04f09582ada580a7ffb

Score

10^/10

neshta persistence spyware stealer

Malware Config

Signatures

Detect Neshta Payload 3 IoCs

Processes:

resource	yara_rule
behavioral2/memory/1328-73-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral2/memory/1328-74-0x00000000004080E4-mapping.dmp	family_neshta
behavioral2/memory/1328-76-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta

Modifies system executable filetype association 2 TTPs 1 IoCs
persistence

Modify Registry
T1112

Change Default File Association
T1042

Processes:

vbc.exe

description ioc process

Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.com \"%1\" %*" vbc.exe
Neshta
Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.
persistence spyware neshta
Loads dropped DLL 3 IoCs

Processes:

vbc.exe

pid process

1328 vbc.exe
1328 vbc.exe
1328 vbc.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
T1081
Uses the VBS compiler for execution 1 TTPs

Scripting
T1064
Suspicious use of SetThreadContext 1 IoCs

Processes:

vbc.exe

description pid process target process

PID 2000 set thread context of 1328 2000 vbc.exe vbc.exe

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

pid	process
1328	vbc.exe
1328	vbc.exe
1328	vbc.exe

description	pid	process	target process
PID 2000 set thread context of 1328	2000	vbc.exe	vbc.exe

Drops file in Program Files directory 64 IoCs

Processes:

vbc.exe

description	ioc	process
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\MSInfo\msinfo32.exe	vbc.exe
File opened for modification	C:\PROGRA~2\Google\Temp\GUMFBCB.tmp\GOFB2B~1.EXE	vbc.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\INFOPATH.EXE	vbc.exe
File opened for modification	C:\PROGRA~2\MOZILL~1\UNINST~1.EXE	vbc.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\A3DUTI~1.EXE	vbc.exe
File opened for modification	C:\PROGRA~2\COMMON~1\ADOBEA~1\Versions\1.0\ADOBEA~1.EXE	vbc.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\OIS.EXE	vbc.exe
File opened for modification	C:\PROGRA~2\WINDOW~1\wabmig.exe	vbc.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmpshare.exe	vbc.exe
File opened for modification	C:\PROGRA~2\WINDOW~1\WinMail.exe	vbc.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Adobe\Updater6\ADOBE_~1.EXE	vbc.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\FLTLDR.EXE	vbc.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\LICLUA.EXE	vbc.exe
File opened for modification	C:\PROGRA~2\Google\Update\1335~1.452\GOF5E2~1.EXE	vbc.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\1033\ONELEV.EXE	vbc.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\BCSSync.exe	vbc.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSQRY32.EXE	vbc.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\setup_wm.exe	vbc.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmpconfig.exe	vbc.exe
File opened for modification	C:\PROGRA~2\WI4223~1\sidebar.exe	vbc.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\ACROBR~1.EXE	vbc.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Adobe\Updater6\ADOBEU~1.EXE	vbc.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\misc.exe	vbc.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSOHTMED.EXE	vbc.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\WINWORD.EXE	vbc.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\XLICONS.EXE	vbc.exe
File opened for modification	C:\PROGRA~2\WINDOW~1\wab.exe	vbc.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\Oarpmany.exe	vbc.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\CNFNOT32.EXE	vbc.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSOSYNC.EXE	vbc.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\MSOXMLED.EXE	vbc.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\CLVIEW.EXE	vbc.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmprph.exe	vbc.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\VSTO\10.0\VSTOIN~1.EXE	vbc.exe
File opened for modification	C:\PROGRA~2\Google\Update\1335~1.452\GO664E~1.EXE	vbc.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\GRAPH.EXE	vbc.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSTORDB.EXE	vbc.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\PPTICO.EXE	vbc.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\SELFCERT.EXE	vbc.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\ADOBEC~1.EXE	vbc.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\LOGTRA~1.EXE	vbc.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ieinstal.exe	vbc.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\GROOVEMN.EXE	vbc.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\OFFICE~1\Setup.exe	vbc.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ielowutil.exe	vbc.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\ACCICONS.EXE	vbc.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\Eula.exe	vbc.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Resource\Icons\SC_REA~1.EXE	vbc.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSTORE.EXE	vbc.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmplayer.exe	vbc.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{EF6B0~1\VCREDI~1.EXE	vbc.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\TextConv\WksConv\Wkconv.exe	vbc.exe
File opened for modification	C:\PROGRA~2\Google\Update\DISABL~1.EXE	vbc.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\IECONT~1.EXE	vbc.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\ONENOTEM.EXE	vbc.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{CA675~1\VCREDI~1.EXE	vbc.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\AcroRd32.exe	vbc.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\DW\DWTRIG20.EXE	vbc.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\ink\mip.exe	vbc.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\OFFICE~1\ODeploy.exe	vbc.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\SOURCE~1\OSE.EXE	vbc.exe
File opened for modification	C:\PROGRA~2\Google\Update\1335~1.452\GOOGLE~2.EXE	vbc.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\WORDICON.EXE	vbc.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\MSOICONS.EXE	vbc.exe

Drops file in Windows directory 1 IoCs

Processes:

vbc.exe

description ioc process

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

System Information Discovery
T1082
Modifies registry class 1 IoCs

Processes:

vbc.exe

description ioc process

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

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

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

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

vbc.exe

description	pid	process	target process
PID 2000 wrote to memory of 1328	2000	vbc.exe	vbc.exe
PID 2000 wrote to memory of 1328	2000	vbc.exe	vbc.exe
PID 2000 wrote to memory of 1328	2000	vbc.exe	vbc.exe
PID 2000 wrote to memory of 1328	2000	vbc.exe	vbc.exe
PID 2000 wrote to memory of 1328	2000	vbc.exe	vbc.exe
PID 2000 wrote to memory of 1328	2000	vbc.exe	vbc.exe
PID 2000 wrote to memory of 1328	2000	vbc.exe	vbc.exe
PID 2000 wrote to memory of 1328	2000	vbc.exe	vbc.exe
PID 2000 wrote to memory of 1328	2000	vbc.exe	vbc.exe
PID 2000 wrote to memory of 1328	2000	vbc.exe	vbc.exe
PID 2000 wrote to memory of 1328	2000	vbc.exe	vbc.exe
PID 2000 wrote to memory of 1328	2000	vbc.exe	vbc.exe

C:\Users\Admin\AppData\Local\Temp\vbc.exe
"C:\Users\Admin\AppData\Local\Temp\vbc.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2000

C:\Users\Admin\AppData\Local\Temp\vbc.exe
"C:\Users\Admin\AppData\Local\Temp\vbc.exe"
2⤵
- Modifies system executable filetype association
- Loads dropped DLL
- Drops file in Program Files directory
- Drops file in Windows directory
- Modifies registry class
PID:1328

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scripting

1

T1064

Persistence

Change Default File Association

1

T1042

Privilege Escalation

Defense Evasion

Modify Registry

Scripting

Credential Access

Credentials in Files

1

T1081

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\PROGRA~2\Adobe\READER~1.0\Reader\LOGTRA~1.EXE
MD5
9e2b9928c89a9d0da1d3e8f4bd96afa7

SHA1
ec66cda99f44b62470c6930e5afda061579cde35

SHA256
8899b4ed3446b7d55b54defbc1acb7c5392a4b3bc8ec2cdc7c31171708965043

SHA512
2ca5ad1d0e12a8049de885b90b7f56fe77c868e0d6dae4ec4b6f3bc0bf7b2e73295cc9b1328c2b45357ffb0d7804622ab3f91a56140b098e93b691032d508156

Download Submit
\PROGRA~2\Google\Temp\GUMFBCB.tmp\GOFB2B~1.EXE
MD5
583ff3367e050c4d62bc03516473b40a

SHA1
6aa1d26352b78310e711884829c35a69ed1bf0f9

SHA256
6b63f8dd47d8b3baa71b6cd205d428861b96bf09cf479071e75ddd23f97c0146

SHA512
e9bdd5cc2e29db48cc524488fbadb08e808f17f6e18fa595cfebae229c94f2547079e52a2ada214169577b89b2ffbef424729cd90acdea3774f5c76aec192be0

Download Submit
\PROGRA~2\Google\Update\1335~1.452\GOFB2B~1.EXE
MD5
583ff3367e050c4d62bc03516473b40a

SHA1
6aa1d26352b78310e711884829c35a69ed1bf0f9

SHA256
6b63f8dd47d8b3baa71b6cd205d428861b96bf09cf479071e75ddd23f97c0146

SHA512
e9bdd5cc2e29db48cc524488fbadb08e808f17f6e18fa595cfebae229c94f2547079e52a2ada214169577b89b2ffbef424729cd90acdea3774f5c76aec192be0

Download Submit
memory/1328-72-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1328-70-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1328-76-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1328-66-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1328-67-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1328-68-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1328-69-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1328-74-0x00000000004080E4-mapping.dmp

Download
memory/1328-71-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1328-73-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2000-0-0x0000000001100000-0x0000000001101000-memory.dmp

Filesize
4KB

Download
memory/2000-64-0x0000000007F70000-0x0000000007FD7000-memory.dmp

Filesize
412KB

Download
memory/2000-65-0x0000000000710000-0x0000000000747000-memory.dmp

Filesize
220KB

Download
memory/2000-63-0x0000000000610000-0x0000000000616000-memory.dmp

Filesize
24KB

Download
memory/2000-3-0x0000000004CB0000-0x0000000004CB1000-memory.dmp

Filesize
4KB

Download
memory/2000-2-0x0000000075D11000-0x0000000075D13000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads