neshta | 1dc4ecb493c5e6319426306929fe0e667c7c5de0326ef29893c7cbb54ee3a370

Analysis

max time kernel
117s
max time network
129s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
01-12-2024 18:05

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General

Target

Method/Method/2. Parameters/Tool/1. Parameter Hq/main.exe
Size

6.9MB
MD5

103094611fd5964a753bded872de235e
SHA1

bc0a0f5b1e975795aa893ee6f0c61927e20389ea
SHA256

3814314e3ac6b9d6854a1e18895cfb30d19dc9dbf9455869624c4182ae9b494f
SHA512

5cdb5b5c110621ab06102094bace1fa260e574cede38129bc64232e77593426e6f0e7abe365461189203d8e6f5867756d61283455414ccfcae8cd47b371fef69
SSDEEP

196608:0sfXWA1HeT39IigFeE9TFa0Z8DOjCdyluomnzbQW7txK:F1+TtIiRY9Z8D8Ccl5KnPxK

Score

10^/10

neshta discovery persistence pyinstaller spyware stealer

Malware Config

Signatures

Detect Neshta payload 3 IoCs

resource	yara_rule
behavioral1/files/0x0001000000010314-11.dat	family_neshta
behavioral1/memory/1792-108-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral1/memory/1792-110-0x0000000000400000-0x000000000041B000-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

Executes dropped EXE 2 IoCs

pid	Process
540	main.exe
768	main.exe

Loads dropped DLL 4 IoCs

pid	Process
1792	main.exe
540	main.exe
768	main.exe
1792	main.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\" %*"	main.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\MICROS~1\Office14\IECONT~1.EXE	main.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSTORE.EXE	main.exe
File opened for modification	C:\PROGRA~2\WINDOW~1\wab.exe	main.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{57A73~1\VC_RED~1.EXE	main.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\DW\DWTRIG20.EXE	main.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\EQUATION\EQNEDT32.EXE	main.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOF5E2~1.EXE	main.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\BCSSync.exe	main.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\ONENOTE.EXE	main.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{33D1F~1\VCREDI~1.EXE	main.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ielowutil.exe	main.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\GRAPH.EXE	main.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{EF6B0~1\VCREDI~1.EXE	main.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\TextConv\WksConv\Wkconv.exe	main.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\VSTO\10.0\VSTOIN~1.EXE	main.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\CLVIEW.EXE	main.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\INFOPATH.EXE	main.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\SELFCERT.EXE	main.exe
File opened for modification	C:\PROGRA~2\WI4223~1\sidebar.exe	main.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GO664E~1.EXE	main.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOBD5D~1.EXE	main.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\PPTICO.EXE	main.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\WORDICON.EXE	main.exe
File opened for modification	C:\PROGRA~2\MOZILL~1\UNINST~1.EXE	main.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\AcroRd32.exe	main.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\Eula.exe	main.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Resource\Icons\SC_REA~1.EXE	main.exe
File opened for modification	C:\PROGRA~2\COMMON~1\ADOBEA~1\Versions\1.0\ADOBEA~1.EXE	main.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\MSOXMLED.EXE	main.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\1033\ONELEV.EXE	main.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\POWERPNT.EXE	main.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmlaunch.exe	main.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmpconfig.exe	main.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmprph.exe	main.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\ACROBR~1.EXE	main.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Adobe\Updater6\ADOBEU~1.EXE	main.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\ink\mip.exe	main.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\MSInfo\msinfo32.exe	main.exe
File opened for modification	C:\PROGRA~2\INTERN~1\iexplore.exe	main.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\NAMECO~1.EXE	main.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\WINWORD.EXE	main.exe
File opened for modification	C:\PROGRA~2\MOZILL~1\MAINTE~1.EXE	main.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\WMPDMC.exe	main.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{CA675~1\VCREDI~1.EXE	main.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\MSOICONS.EXE	main.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\OFFICE~1\ODeploy.exe	main.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~2.EXE	main.exe
File opened for modification	C:\PROGRA~2\WINDOW~1\wabmig.exe	main.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{61087~1\VCREDI~1.EXE	main.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~4.EXE	main.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\A3DUTI~1.EXE	main.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSTORDB.EXE	main.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\SETUPF~1\{AC76B~1\Setup.exe	main.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\FLTLDR.EXE	main.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\LICLUA.EXE	main.exe
File opened for modification	C:\PROGRA~2\Google\Update\DISABL~1.EXE	main.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\ACCICONS.EXE	main.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSOHTMED.EXE	main.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSOUC.EXE	main.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\OIS.EXE	main.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\ONENOTEM.EXE	main.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmpshare.exe	main.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\ADOBEC~1.EXE	main.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Adobe\Updater6\ADOBE_~1.EXE	main.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\svchost.com	main.exe

Detects Pyinstaller 1 IoCs

pyinstaller

resource	yara_rule
behavioral1/files/0x000400000001cc14-2.dat	pyinstaller

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	main.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\" %*"	main.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1792 wrote to memory of 540	1792	main.exe	31
PID 1792 wrote to memory of 540	1792	main.exe	31
PID 1792 wrote to memory of 540	1792	main.exe	31
PID 1792 wrote to memory of 540	1792	main.exe	31
PID 540 wrote to memory of 768	540	main.exe	33
PID 540 wrote to memory of 768	540	main.exe	33
PID 540 wrote to memory of 768	540	main.exe	33

C:\Users\Admin\AppData\Local\Temp\Method\Method\2. Parameters\Tool\1. Parameter Hq\main.exe
"C:\Users\Admin\AppData\Local\Temp\Method\Method\2. Parameters\Tool\1. Parameter Hq\main.exe"
1⤵
- Loads dropped DLL
- 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:1792
- C:\Users\Admin\AppData\Local\Temp\3582-490\main.exe
  "C:\Users\Admin\AppData\Local\Temp\3582-490\main.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:540
- - C:\Users\Admin\AppData\Local\Temp\3582-490\main.exe
    "C:\Users\Admin\AppData\Local\Temp\3582-490\main.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    PID:768

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

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:\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\_MEI5402\python312.dll

Filesize
6.6MB

MD5
3c388ce47c0d9117d2a50b3fa5ac981d

SHA1
038484ff7460d03d1d36c23f0de4874cbaea2c48

SHA256
c98ba3354a7d1f69bdca42560feec933ccba93afcc707391049a065e1079cddb

SHA512
e529c5c1c028be01e44a156cd0e7cad0a24b5f91e5d34697fafc395b63e37780dc0fac8f4c5d075ad8fe4bd15d62a250b818ff3d4ead1e281530a4c7e3ce6d35

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\main.exe

Filesize
6.9MB

MD5
cdc4c96ef4c65351f14d47bcf7d77112

SHA1
70838a32433c7cc825abf947ce5bd0a1cc37edb4

SHA256
6377244a8aee2a01ad56d951707ca7eaf7e7a234f3e75863fd1ed8c902d215ef

SHA512
bfaa074d05b14be87d96c6ce5df1c431bfd5a52a5b413356c562e05d580a0c74d2242ec283346b48dabe4e08ec3b187a439165f9db55eec8c4739945ec672ad4

Download Submit
memory/1792-108-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1792-110-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads