neshta | c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd

Analysis

max time kernel
140s
max time network
119s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
17/06/2024, 02:05

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General

Target

c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe
Size

494KB
MD5

b159bad9460e65880396584f046214ec
SHA1

ecb5feeab2c2cb16a1fc9a48f915c264bd5fe047
SHA256

c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd
SHA512

f1e3cfa4a642b9eb71731d842ba3944d96739781c5d70c64bc72bea20287bdc793d9e058ba507a5b912e5730345e152a686ceceb50c54bc5f1a98b384e0c5c9c
SSDEEP

12288:EQgp/NfS9xBbGvdY8SMIQc2kFEm8R2NSh:7s/lS9DG2pTJF42Qh

Score

10^/10

neshta persistence spyware stealer upx

Malware Config

Signatures

Detect Neshta payload 3 IoCs

resource	yara_rule
behavioral1/files/0x0001000000010316-11.dat	family_neshta
behavioral1/memory/1900-86-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral1/memory/1900-89-0x0000000000400000-0x000000000041B000-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

UPX dump on OEP (original entry point) 3 IoCs

resource	yara_rule
behavioral1/files/0x00370000000164a9-2.dat	UPX
behavioral1/memory/2964-9-0x0000000140000000-0x000000014016A000-memory.dmp	UPX
behavioral1/memory/2964-87-0x0000000140000000-0x000000014016A000-memory.dmp	UPX

Executes dropped EXE 2 IoCs

pid	Process
2964	c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe
1180	Process not Found

Loads dropped DLL 2 IoCs

pid	Process
1900	c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe
1900	c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.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\" %*"	c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.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

UPX packed file 3 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/files/0x00370000000164a9-2.dat	upx
behavioral1/memory/2964-9-0x0000000140000000-0x000000014016A000-memory.dmp	upx
behavioral1/memory/2964-87-0x0000000140000000-0x000000014016A000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\ACROBR~1.EXE	c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Adobe\Updater6\ADOBEU~1.EXE	c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~4.EXE	c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\OIS.EXE	c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\POWERPNT.EXE	c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\Oarpmany.exe	c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\WINWORD.EXE	c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{33D1F~1\VCREDI~1.EXE	c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{57A73~1\VC_RED~1.EXE	c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\DW\DW20.EXE	c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\CNFNOT32.EXE	c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\VPREVIEW.EXE	c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{CA675~1\VCREDI~1.EXE	c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\setup_wm.exe	c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\WMPDMC.exe	c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\EQUATION\EQNEDT32.EXE	c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\MSInfo\msinfo32.exe	c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\OFFICE~1\Setup.exe	c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSTORDB.EXE	c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe
File opened for modification	C:\PROGRA~2\MOZILL~1\UNINST~1.EXE	c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe
File opened for modification	C:\PROGRA~2\WINDOW~1\WinMail.exe	c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe
File opened for modification	C:\PROGRA~2\COMMON~1\ADOBEA~1\Versions\1.0\ADOBEA~1.EXE	c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\OFFICE~1\ODeploy.exe	c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\TextConv\WksConv\Wkconv.exe	c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\ACCICONS.EXE	c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmpshare.exe	c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{61087~1\VCREDI~1.EXE	c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\FLTLDR.EXE	c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\VSTO\10.0\VSTOIN~1.EXE	c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOBD5D~1.EXE	c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe
File opened for modification	C:\PROGRA~2\Google\Update\DISABL~1.EXE	c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ieinstal.exe	c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe
File opened for modification	C:\PROGRA~2\WINDOW~1\wab.exe	c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\CLVIEW.EXE	c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\XLICONS.EXE	c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{EF6B0~1\VCREDI~1.EXE	c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Adobe\Updater6\ADOBE_~1.EXE	c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GO664E~1.EXE	c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOF5E2~1.EXE	c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\WORDICON.EXE	c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmplayer.exe	c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{4D8DC~1\VC_RED~1.EXE	c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\DW\DWTRIG20.EXE	c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\LICLUA.EXE	c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\GROOVEMN.EXE	c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\NAMECO~1.EXE	c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmlaunch.exe	c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSOHTMED.EXE	c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSOUC.EXE	c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\ADOBEC~1.EXE	c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\LOGTRA~1.EXE	c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ielowutil.exe	c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\1033\ONELEV.EXE	c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\BCSSync.exe	c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\misc.exe	c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe
File opened for modification	C:\PROGRA~2\MOZILL~1\MAINTE~1.EXE	c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe
File opened for modification	C:\PROGRA~2\WINDOW~2\ACCESS~1\wordpad.exe	c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~2.EXE	c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe
File opened for modification	C:\PROGRA~2\INTERN~1\iexplore.exe	c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSOSYNC.EXE	c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe
File opened for modification	C:\PROGRA~2\WINDOW~4\ImagingDevices.exe	c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\A3DUTI~1.EXE	c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Resource\Icons\SC_REA~1.EXE	c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\SETUPF~1\{AC76B~1\Setup.exe	c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\svchost.com	c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.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\" %*"	c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2964	c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeBackupPrivilege	2964	c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1900 wrote to memory of 2964	1900	c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe	28
PID 1900 wrote to memory of 2964	1900	c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe	28
PID 1900 wrote to memory of 2964	1900	c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe	28
PID 1900 wrote to memory of 2964	1900	c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe	28

C:\Users\Admin\AppData\Local\Temp\c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe
"C:\Users\Admin\AppData\Local\Temp\c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.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:1900
- C:\Users\Admin\AppData\Local\Temp\3582-490\c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe
  "C:\Users\Admin\AppData\Local\Temp\3582-490\c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2964

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

Loading Replay Monitor...

Downloads

C:\MSOCache\ALLUSE~1\{90140~1\dwtrig20.exe

Filesize
547KB

MD5
cf6c595d3e5e9667667af096762fd9c4

SHA1
9bb44da8d7f6457099cb56e4f7d1026963dce7ce

SHA256
593e60cc30ae0789448547195af77f550387f6648d45847ea244dd0dd7abf03d

SHA512
ff4f789df9e6a6d0fbe12b3250f951fcf11e857906c65e96a30bb46266e7e1180d6103a03db2f3764e0d1346b2de7afba8259ba080057e4a268e45e8654dfa80

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\c5fbec8e17496093fe2237baf0b6c1fc257f97232e9178f9f3abea03c85a8acd.exe

Filesize
454KB

MD5
a7557cefe34a556568992f55fb213dd7

SHA1
c20f5db3f949c7f5e3dfa02011b202e1941517fe

SHA256
812aaf1ddb02d8fe4935f7e9fea65b8dec69d011a8e48f3c1a663e2832fbc192

SHA512
125b80c8bfbd30ef7065376a3998236852633b4efee4774b89d309a18a7bfc2ad1a0bbdf75d5d079e2e2065187c28f28d83dc83ae8fa9cc1078ff8a5adb17272

Download Submit
memory/1900-7-0x00000000028E0000-0x0000000002A4A000-memory.dmp

Filesize
1.4MB

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memory/1900-86-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

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memory/1900-89-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

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memory/2964-9-0x0000000140000000-0x000000014016A000-memory.dmp

Filesize
1.4MB

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memory/2964-87-0x0000000140000000-0x000000014016A000-memory.dmp

Filesize
1.4MB

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