neshta | ab48d5404ce98ac3ae56c449fe661c0acf73fa4fd2182a2f39e61c02052092fe

Analysis

max time kernel
152s
max time network
147s
platform
windows7_x64
resource
win7-20230831-en
resource tags

arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
submitted
11/10/2023, 19:14

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General

Target

a507cbaa0161cd7360b5140f2e3421c3_JC.exe
Size

593KB
MD5

a507cbaa0161cd7360b5140f2e3421c3
SHA1

6d5dd32898f86afb249d9e4233887c2d220e73cc
SHA256

ab48d5404ce98ac3ae56c449fe661c0acf73fa4fd2182a2f39e61c02052092fe
SHA512

d3fd9dedd8deca889ce1c407fe144e713f61ea6b5b5a7dc0c86f14c3c4c87310ebcb07562c997481c84c2ea6c09f6e48da2b1b28ca9ffdae2b437c9a010b3176
SSDEEP

12288:2QgTT/g4DuZHpUL41mwVen6GP7v97qyzcj+4j:29k4Dm1mwVdOJX6+O

Score

10^/10

neshta persistence spyware stealer

Malware Config

Signatures

Detect Neshta payload 12 IoCs

resource	yara_rule
behavioral1/files/0x0001000000010324-10.dat	family_neshta
behavioral1/memory/2620-11-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral1/memory/2620-13-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral1/memory/2620-74-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral1/memory/2620-87-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral1/memory/2620-89-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral1/memory/2620-90-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral1/memory/2620-91-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral1/memory/2620-92-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral1/memory/2620-93-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral1/memory/2620-94-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral1/memory/2620-96-0x0000000000400000-0x000000000041B000-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

pid	Process
2672	a507cbaa0161cd7360b5140f2e3421c3_JC.exe

Loads dropped DLL 2 IoCs

pid	Process
2620	a507cbaa0161cd7360b5140f2e3421c3_JC.exe
2620	a507cbaa0161cd7360b5140f2e3421c3_JC.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\" %*"	a507cbaa0161cd7360b5140f2e3421c3_JC.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\MICROS~1\Office14\ACCICONS.EXE	a507cbaa0161cd7360b5140f2e3421c3_JC.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\CLVIEW.EXE	a507cbaa0161cd7360b5140f2e3421c3_JC.exe
File opened for modification	C:\PROGRA~2\WINDOW~1\WinMail.exe	a507cbaa0161cd7360b5140f2e3421c3_JC.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Adobe\Updater6\ADOBEU~1.EXE	a507cbaa0161cd7360b5140f2e3421c3_JC.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ielowutil.exe	a507cbaa0161cd7360b5140f2e3421c3_JC.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\ONENOTE.EXE	a507cbaa0161cd7360b5140f2e3421c3_JC.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\SELFCERT.EXE	a507cbaa0161cd7360b5140f2e3421c3_JC.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\setup_wm.exe	a507cbaa0161cd7360b5140f2e3421c3_JC.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\Eula.exe	a507cbaa0161cd7360b5140f2e3421c3_JC.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\OFFICE~1\Setup.exe	a507cbaa0161cd7360b5140f2e3421c3_JC.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSOSYNC.EXE	a507cbaa0161cd7360b5140f2e3421c3_JC.exe
File opened for modification	C:\PROGRA~2\MOZILL~1\UNINST~1.EXE	a507cbaa0161cd7360b5140f2e3421c3_JC.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\FLTLDR.EXE	a507cbaa0161cd7360b5140f2e3421c3_JC.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\MSOXMLED.EXE	a507cbaa0161cd7360b5140f2e3421c3_JC.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\OFFICE~1\ODeploy.exe	a507cbaa0161cd7360b5140f2e3421c3_JC.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\VSTO\10.0\VSTOIN~1.EXE	a507cbaa0161cd7360b5140f2e3421c3_JC.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSOUC.EXE	a507cbaa0161cd7360b5140f2e3421c3_JC.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSTORDB.EXE	a507cbaa0161cd7360b5140f2e3421c3_JC.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\WORDICON.EXE	a507cbaa0161cd7360b5140f2e3421c3_JC.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\XLICONS.EXE	a507cbaa0161cd7360b5140f2e3421c3_JC.exe
File opened for modification	C:\PROGRA~2\COMMON~1\ADOBEA~1\Versions\1.0\ADOBEA~1.EXE	a507cbaa0161cd7360b5140f2e3421c3_JC.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\WMPDMC.exe	a507cbaa0161cd7360b5140f2e3421c3_JC.exe
File opened for modification	C:\PROGRA~2\WINDOW~4\ImagingDevices.exe	a507cbaa0161cd7360b5140f2e3421c3_JC.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{33D1F~1\VCREDI~1.EXE	a507cbaa0161cd7360b5140f2e3421c3_JC.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmpconfig.exe	a507cbaa0161cd7360b5140f2e3421c3_JC.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\GRAPH.EXE	a507cbaa0161cd7360b5140f2e3421c3_JC.exe
File opened for modification	C:\PROGRA~2\INTERN~1\iexplore.exe	a507cbaa0161cd7360b5140f2e3421c3_JC.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmprph.exe	a507cbaa0161cd7360b5140f2e3421c3_JC.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\CNFNOT32.EXE	a507cbaa0161cd7360b5140f2e3421c3_JC.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\IECONT~1.EXE	a507cbaa0161cd7360b5140f2e3421c3_JC.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{57A73~1\VC_RED~1.EXE	a507cbaa0161cd7360b5140f2e3421c3_JC.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{CA675~1\VCREDI~1.EXE	a507cbaa0161cd7360b5140f2e3421c3_JC.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\1033\ONELEV.EXE	a507cbaa0161cd7360b5140f2e3421c3_JC.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~3.EXE	a507cbaa0161cd7360b5140f2e3421c3_JC.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\NAMECO~1.EXE	a507cbaa0161cd7360b5140f2e3421c3_JC.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\ink\mip.exe	a507cbaa0161cd7360b5140f2e3421c3_JC.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\MSOICONS.EXE	a507cbaa0161cd7360b5140f2e3421c3_JC.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~4.EXE	a507cbaa0161cd7360b5140f2e3421c3_JC.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\SETUPF~1\{AC76B~1\Setup.exe	a507cbaa0161cd7360b5140f2e3421c3_JC.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\MSInfo\msinfo32.exe	a507cbaa0161cd7360b5140f2e3421c3_JC.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\SOURCE~1\OSE.EXE	a507cbaa0161cd7360b5140f2e3421c3_JC.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\TextConv\WksConv\Wkconv.exe	a507cbaa0161cd7360b5140f2e3421c3_JC.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~2.EXE	a507cbaa0161cd7360b5140f2e3421c3_JC.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOF5E2~1.EXE	a507cbaa0161cd7360b5140f2e3421c3_JC.exe
File opened for modification	C:\PROGRA~2\Google\Update\DISABL~1.EXE	a507cbaa0161cd7360b5140f2e3421c3_JC.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\OIS.EXE	a507cbaa0161cd7360b5140f2e3421c3_JC.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\AcroRd32.exe	a507cbaa0161cd7360b5140f2e3421c3_JC.exe
File opened for modification	C:\PROGRA~2\WINDOW~2\ACCESS~1\wordpad.exe	a507cbaa0161cd7360b5140f2e3421c3_JC.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\WINWORD.EXE	a507cbaa0161cd7360b5140f2e3421c3_JC.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\INFOPATH.EXE	a507cbaa0161cd7360b5140f2e3421c3_JC.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\misc.exe	a507cbaa0161cd7360b5140f2e3421c3_JC.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\POWERPNT.EXE	a507cbaa0161cd7360b5140f2e3421c3_JC.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\PPTICO.EXE	a507cbaa0161cd7360b5140f2e3421c3_JC.exe
File opened for modification	C:\PROGRA~2\MOZILL~1\MAINTE~1.EXE	a507cbaa0161cd7360b5140f2e3421c3_JC.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\DW\DW20.EXE	a507cbaa0161cd7360b5140f2e3421c3_JC.exe
File opened for modification	C:\PROGRA~2\WINDOW~1\wabmig.exe	a507cbaa0161cd7360b5140f2e3421c3_JC.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmplayer.exe	a507cbaa0161cd7360b5140f2e3421c3_JC.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSTORE.EXE	a507cbaa0161cd7360b5140f2e3421c3_JC.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\ADOBEC~1.EXE	a507cbaa0161cd7360b5140f2e3421c3_JC.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Resource\Icons\SC_REA~1.EXE	a507cbaa0161cd7360b5140f2e3421c3_JC.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Adobe\Updater6\ADOBE_~1.EXE	a507cbaa0161cd7360b5140f2e3421c3_JC.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\DW\DWTRIG20.EXE	a507cbaa0161cd7360b5140f2e3421c3_JC.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmlaunch.exe	a507cbaa0161cd7360b5140f2e3421c3_JC.exe
File opened for modification	C:\PROGRA~2\WI4223~1\sidebar.exe	a507cbaa0161cd7360b5140f2e3421c3_JC.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\svchost.com	a507cbaa0161cd7360b5140f2e3421c3_JC.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\" %*"	a507cbaa0161cd7360b5140f2e3421c3_JC.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2672	a507cbaa0161cd7360b5140f2e3421c3_JC.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2620 wrote to memory of 2672	2620	a507cbaa0161cd7360b5140f2e3421c3_JC.exe	28
PID 2620 wrote to memory of 2672	2620	a507cbaa0161cd7360b5140f2e3421c3_JC.exe	28
PID 2620 wrote to memory of 2672	2620	a507cbaa0161cd7360b5140f2e3421c3_JC.exe	28
PID 2620 wrote to memory of 2672	2620	a507cbaa0161cd7360b5140f2e3421c3_JC.exe	28

C:\Users\Admin\AppData\Local\Temp\a507cbaa0161cd7360b5140f2e3421c3_JC.exe
"C:\Users\Admin\AppData\Local\Temp\a507cbaa0161cd7360b5140f2e3421c3_JC.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:2620
- C:\Users\Admin\AppData\Local\Temp\3582-490\a507cbaa0161cd7360b5140f2e3421c3_JC.exe
  "C:\Users\Admin\AppData\Local\Temp\3582-490\a507cbaa0161cd7360b5140f2e3421c3_JC.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  PID:2672

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

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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
C:\Users\Admin\AppData\Local\Temp\3582-490\a507cbaa0161cd7360b5140f2e3421c3_JC.exe

Filesize
552KB

MD5
6c3fc532e62dd200fde7ed4270da9a82

SHA1
2d9feef911ef4fcba13c4e755fb7a00a031f1ae0

SHA256
8f4447b0dbd915db524a9e21418120509307c980e04b717eff189a6643920bbc

SHA512
266cbec59e668b7c2afefaa5b4471ffe1560aa9ab8eb38eafdd19b342cc67860b9c4e123ecb20426e8af84d317cacdd450f11d111d0eaf2ae695817f35b5c48e

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\a507cbaa0161cd7360b5140f2e3421c3_JC.exe

Filesize
552KB

MD5
6c3fc532e62dd200fde7ed4270da9a82

SHA1
2d9feef911ef4fcba13c4e755fb7a00a031f1ae0

SHA256
8f4447b0dbd915db524a9e21418120509307c980e04b717eff189a6643920bbc

SHA512
266cbec59e668b7c2afefaa5b4471ffe1560aa9ab8eb38eafdd19b342cc67860b9c4e123ecb20426e8af84d317cacdd450f11d111d0eaf2ae695817f35b5c48e

Download Submit
memory/2620-74-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2620-13-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2620-11-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2620-87-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2620-89-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2620-90-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2620-91-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2620-92-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2620-93-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2620-94-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2620-96-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads