neshta | 7ff63ced9ab495d072ba976462fcbf74e6529cdc9810a991e1f0b85d7c44b66e

Analysis

max time kernel
122s
max time network
131s
platform
windows7_x64
resource
win7-20231020-en
resource tags

arch:x64arch:x86image:win7-20231020-enlocale:en-usos:windows7-x64system
submitted
13/11/2023, 18:50

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General

Target

tmp.exe
Size

3.9MB
MD5

0849bbd6489e2c9e29cda02169f243cd
SHA1

4759c20035d8c6df35679910d65c9ad79c6da521
SHA256

7ff63ced9ab495d072ba976462fcbf74e6529cdc9810a991e1f0b85d7c44b66e
SHA512

6d97e24c012204a02a77b7ce7007fca68f3521f10389fe7589cb920d436c94a6786887e187d09637f738c36e244f3489fb960c33b62ccecf212209bfd9572581
SSDEEP

98304:x+GA7R+afsMveTDN6US+8B4JZZACYrsaaRT:oGANzmTDN6UOBIZACYrsb

Score

10^/10

neshta xmrig miner persistence spyware stealer

Malware Config

Signatures

Detect Neshta payload 4 IoCs

resource	yara_rule
behavioral1/files/0x0001000000010324-10.dat	family_neshta
behavioral1/memory/2080-84-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral1/memory/2080-85-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral1/memory/2080-87-0x0000000000400000-0x000000000041B000-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
xmrig
XMRig is a high performance, open source, cross platform CPU/GPU miner.
miner xmrig

XMRig Miner payload 3 IoCs

miner

resource	yara_rule
behavioral1/files/0x00070000000120ea-2.dat	xmrig
behavioral1/files/0x00070000000120ea-4.dat	xmrig
behavioral1/memory/2244-11-0x0000000000400000-0x000000000086F000-memory.dmp	xmrig

Executes dropped EXE 1 IoCs

pid	Process
2244	tmp.exe

Loads dropped DLL 2 IoCs

pid	Process
2080	tmp.exe
2080	tmp.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\" %*"	tmp.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\COMMON~1\MICROS~1\EQUATION\EQNEDT32.EXE	tmp.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\FLTLDR.EXE	tmp.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\OFFICE~1\ODeploy.exe	tmp.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\INFOPATH.EXE	tmp.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSTORE.EXE	tmp.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\PPTICO.EXE	tmp.exe
File opened for modification	C:\PROGRA~2\WINDOW~1\wabmig.exe	tmp.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\ACROBR~1.EXE	tmp.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOF5E2~1.EXE	tmp.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ielowutil.exe	tmp.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\ONENOTE.EXE	tmp.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\VPREVIEW.EXE	tmp.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{CA675~1\VCREDI~1.EXE	tmp.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\DW\DW20.EXE	tmp.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Resource\Icons\SC_REA~1.EXE	tmp.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOBD5D~1.EXE	tmp.exe
File opened for modification	C:\PROGRA~2\INTERN~1\iexplore.exe	tmp.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSQRY32.EXE	tmp.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\AcroRd32.exe	tmp.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\SOURCE~1\OSE.EXE	tmp.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~1.EXE	tmp.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\CNFNOT32.EXE	tmp.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\OIS.EXE	tmp.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\SELFCERT.EXE	tmp.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\setup_wm.exe	tmp.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\MSInfo\msinfo32.exe	tmp.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\DW\DWTRIG20.EXE	tmp.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~4.EXE	tmp.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\1033\ONELEV.EXE	tmp.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\CLVIEW.EXE	tmp.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSOUC.EXE	tmp.exe
File opened for modification	C:\PROGRA~2\WINDOW~4\ImagingDevices.exe	tmp.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{61087~1\VCREDI~1.EXE	tmp.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\SETUPF~1\{AC76B~1\Setup.exe	tmp.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{EF6B0~1\VCREDI~1.EXE	tmp.exe
File opened for modification	C:\PROGRA~2\WI4223~1\sidebar.exe	tmp.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\ACCICONS.EXE	tmp.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\WORDICON.EXE	tmp.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~3.EXE	tmp.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Adobe\Updater6\ADOBE_~1.EXE	tmp.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\BCSSync.exe	tmp.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSTORDB.EXE	tmp.exe
File opened for modification	C:\PROGRA~2\MOZILL~1\MAINTE~1.EXE	tmp.exe
File opened for modification	C:\PROGRA~2\MOZILL~1\UNINST~1.EXE	tmp.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmlaunch.exe	tmp.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmprph.exe	tmp.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\ADOBEC~1.EXE	tmp.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{4D8DC~1\VC_RED~1.EXE	tmp.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\IECONT~1.EXE	tmp.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\POWERPNT.EXE	tmp.exe
File opened for modification	C:\PROGRA~2\WINDOW~2\ACCESS~1\wordpad.exe	tmp.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\GROOVEMN.EXE	tmp.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\WMPDMC.exe	tmp.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\VSTO\10.0\VSTOIN~1.EXE	tmp.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\misc.exe	tmp.exe
File opened for modification	C:\PROGRA~2\WINDOW~1\wab.exe	tmp.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{33D1F~1\VCREDI~1.EXE	tmp.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{57A73~1\VC_RED~1.EXE	tmp.exe
File opened for modification	C:\PROGRA~2\Google\Update\DISABL~1.EXE	tmp.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\MSOXMLED.EXE	tmp.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\Oarpmany.exe	tmp.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\TextConv\WksConv\Wkconv.exe	tmp.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\WINWORD.EXE	tmp.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmpshare.exe	tmp.exe

Drops file in Windows directory 1 IoCs

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

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2080 wrote to memory of 2244	2080	tmp.exe	28
PID 2080 wrote to memory of 2244	2080	tmp.exe	28
PID 2080 wrote to memory of 2244	2080	tmp.exe	28
PID 2080 wrote to memory of 2244	2080	tmp.exe	28

C:\Users\Admin\AppData\Local\Temp\tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp.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:2080
- C:\Users\Admin\AppData\Local\Temp\3582-490\tmp.exe
  "C:\Users\Admin\AppData\Local\Temp\3582-490\tmp.exe"
  2⤵
  - Executes dropped EXE
  PID:2244

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\tmp.exe

Filesize
3.9MB

MD5
cc20a54b21aac972382d5ad53f67e91b

SHA1
855421ce1addf6efc28f31818d39b2a061655900

SHA256
223f3184613545c3afee56ade4e84e731b7cca237acfab14dbdd58cc8deb48f4

SHA512
89d4b3babff5b207b0bd41f6f5d4e9f88e90482dbbd529da92719d34fed9ea0d7ca57818bfa111b66012d056f1356d54a5f7ce8e5bd0938caa37305cd659e362

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\tmp.exe

Filesize
3.9MB

MD5
cc20a54b21aac972382d5ad53f67e91b

SHA1
855421ce1addf6efc28f31818d39b2a061655900

SHA256
223f3184613545c3afee56ade4e84e731b7cca237acfab14dbdd58cc8deb48f4

SHA512
89d4b3babff5b207b0bd41f6f5d4e9f88e90482dbbd529da92719d34fed9ea0d7ca57818bfa111b66012d056f1356d54a5f7ce8e5bd0938caa37305cd659e362

Download Submit
memory/2080-84-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2080-85-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2080-87-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2244-11-0x0000000000400000-0x000000000086F000-memory.dmp

Filesize
4.4MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads