darkvnc | 0531cae688e34d09b9a7da4e5f50cedaf854d47e7d15eae958cd569a1ecf0b55

General

Target

fe9462599a08f62eb6d8035dd453fad7.exe
Size

579KB
MD5

fe9462599a08f62eb6d8035dd453fad7
SHA1

6fdf760e3768ab2797ccd271f59a48abb8b7a6bd
SHA256

0531cae688e34d09b9a7da4e5f50cedaf854d47e7d15eae958cd569a1ecf0b55
SHA512

6de9d4fa81af0bd904bc1b88339a62a4e2f46dd7575771f68e42dd77389cf96907f6af1dbbe1bf2e4e5a1e7d4cbeb4dc7cf5af23b9bde187759c405f1127ea5c

Score

10^/10

darkvnc neshta persistence rat spyware stealer

Malware Config

Signatures

DarkVNC
DarkVNC is a malicious version of the famous VNC software.
rat darkvnc

Modifies system executable filetype association 2 TTPs 1 IoCs

persistence

Modify Registry

T1112

Change Default File Association

T1042

Processes:

fe9462599a08f62eb6d8035dd453fad7.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.com \"%1\" %*"	fe9462599a08f62eb6d8035dd453fad7.exe

Neshta
Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.
persistence spyware neshta

DarkVNC Payload 4 IoCs

rat

Processes:

resource	yara_rule
\Users\Admin\AppData\Local\Temp\3582-490\fe9462599a08f62eb6d8035dd453fad7.exe	darkvnc
\Users\Admin\AppData\Local\Temp\3582-490\fe9462599a08f62eb6d8035dd453fad7.exe	darkvnc
C:\Users\Admin\AppData\Local\Temp\3582-490\fe9462599a08f62eb6d8035dd453fad7.exe	darkvnc
behavioral1/memory/872-64-0x0000000001B40000-0x0000000001C0A000-memory.dmp	darkvnc

Executes dropped EXE 1 IoCs

Processes:

fe9462599a08f62eb6d8035dd453fad7.exe

pid process

520 fe9462599a08f62eb6d8035dd453fad7.exe
Loads dropped DLL 3 IoCs

Processes:

fe9462599a08f62eb6d8035dd453fad7.exe

pid process

1908 fe9462599a08f62eb6d8035dd453fad7.exe
1908 fe9462599a08f62eb6d8035dd453fad7.exe
1908 fe9462599a08f62eb6d8035dd453fad7.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
Suspicious use of SetThreadContext 1 IoCs

Processes:

fe9462599a08f62eb6d8035dd453fad7.exe

description pid process target process

PID 520 set thread context of 872 520 fe9462599a08f62eb6d8035dd453fad7.exe WerFault.exe

pid	process
520	fe9462599a08f62eb6d8035dd453fad7.exe

pid	process
1908	fe9462599a08f62eb6d8035dd453fad7.exe
1908	fe9462599a08f62eb6d8035dd453fad7.exe
1908	fe9462599a08f62eb6d8035dd453fad7.exe

description	pid	process	target process
PID 520 set thread context of 872	520	fe9462599a08f62eb6d8035dd453fad7.exe	WerFault.exe

Drops file in Program Files directory 64 IoCs

Processes:

fe9462599a08f62eb6d8035dd453fad7.exe

description	ioc	process
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\OIS.EXE	fe9462599a08f62eb6d8035dd453fad7.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\DW\DWTRIG20.EXE	fe9462599a08f62eb6d8035dd453fad7.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\FLTLDR.EXE	fe9462599a08f62eb6d8035dd453fad7.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSOUC.EXE	fe9462599a08f62eb6d8035dd453fad7.exe
File opened for modification	C:\PROGRA~2\MOZILL~1\UNINST~1.EXE	fe9462599a08f62eb6d8035dd453fad7.exe
File opened for modification	C:\PROGRA~2\WI4223~1\sidebar.exe	fe9462599a08f62eb6d8035dd453fad7.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\OFFICE~1\Setup.exe	fe9462599a08f62eb6d8035dd453fad7.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\SOURCE~1\OSE.EXE	fe9462599a08f62eb6d8035dd453fad7.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSOHTMED.EXE	fe9462599a08f62eb6d8035dd453fad7.exe
File opened for modification	C:\PROGRA~2\INTERN~1\iexplore.exe	fe9462599a08f62eb6d8035dd453fad7.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\BCSSync.exe	fe9462599a08f62eb6d8035dd453fad7.exe
File opened for modification	C:\PROGRA~2\WINDOW~2\ACCESS~1\wordpad.exe	fe9462599a08f62eb6d8035dd453fad7.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{CA675~1\VCREDI~1.EXE	fe9462599a08f62eb6d8035dd453fad7.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\ACROBR~1.EXE	fe9462599a08f62eb6d8035dd453fad7.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\VSTO\10.0\VSTOIN~1.EXE	fe9462599a08f62eb6d8035dd453fad7.exe
File opened for modification	C:\PROGRA~2\Google\Update\DISABL~1.EXE	fe9462599a08f62eb6d8035dd453fad7.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.71\GOOGLE~1.EXE	fe9462599a08f62eb6d8035dd453fad7.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\VPREVIEW.EXE	fe9462599a08f62eb6d8035dd453fad7.exe
File opened for modification	C:\PROGRA~2\COMMON~1\ADOBEA~1\Versions\1.0\ADOBEA~1.EXE	fe9462599a08f62eb6d8035dd453fad7.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\LICLUA.EXE	fe9462599a08f62eb6d8035dd453fad7.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\MSOXMLED.EXE	fe9462599a08f62eb6d8035dd453fad7.exe
File opened for modification	C:\PROGRA~2\MOZILL~1\MAINTE~1.EXE	fe9462599a08f62eb6d8035dd453fad7.exe
File opened for modification	C:\PROGRA~2\WINDOW~1\wab.exe	fe9462599a08f62eb6d8035dd453fad7.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmpshare.exe	fe9462599a08f62eb6d8035dd453fad7.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\MSInfo\msinfo32.exe	fe9462599a08f62eb6d8035dd453fad7.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\GROOVEMN.EXE	fe9462599a08f62eb6d8035dd453fad7.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\PPTICO.EXE	fe9462599a08f62eb6d8035dd453fad7.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.71\GOBD5D~1.EXE	fe9462599a08f62eb6d8035dd453fad7.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\GRAPH.EXE	fe9462599a08f62eb6d8035dd453fad7.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmlaunch.exe	fe9462599a08f62eb6d8035dd453fad7.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\LOGTRA~1.EXE	fe9462599a08f62eb6d8035dd453fad7.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Adobe\Updater6\ADOBE_~1.EXE	fe9462599a08f62eb6d8035dd453fad7.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\ink\mip.exe	fe9462599a08f62eb6d8035dd453fad7.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ieinstal.exe	fe9462599a08f62eb6d8035dd453fad7.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSTORE.EXE	fe9462599a08f62eb6d8035dd453fad7.exe
File opened for modification	C:\PROGRA~2\WINDOW~4\ImagingDevices.exe	fe9462599a08f62eb6d8035dd453fad7.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Resource\Icons\SC_REA~1.EXE	fe9462599a08f62eb6d8035dd453fad7.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Adobe\Updater6\ADOBEU~1.EXE	fe9462599a08f62eb6d8035dd453fad7.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\EQUATION\EQNEDT32.EXE	fe9462599a08f62eb6d8035dd453fad7.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\Oarpmany.exe	fe9462599a08f62eb6d8035dd453fad7.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\WMPDMC.exe	fe9462599a08f62eb6d8035dd453fad7.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSTORDB.EXE	fe9462599a08f62eb6d8035dd453fad7.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\POWERPNT.EXE	fe9462599a08f62eb6d8035dd453fad7.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\WORDICON.EXE	fe9462599a08f62eb6d8035dd453fad7.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\XLICONS.EXE	fe9462599a08f62eb6d8035dd453fad7.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\Eula.exe	fe9462599a08f62eb6d8035dd453fad7.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\SETUPF~1\{AC76B~1\Setup.exe	fe9462599a08f62eb6d8035dd453fad7.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\CNFNOT32.EXE	fe9462599a08f62eb6d8035dd453fad7.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\WINWORD.EXE	fe9462599a08f62eb6d8035dd453fad7.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{F4220~1\VC_RED~1.EXE	fe9462599a08f62eb6d8035dd453fad7.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\MSOICONS.EXE	fe9462599a08f62eb6d8035dd453fad7.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.71\GOF5E2~1.EXE	fe9462599a08f62eb6d8035dd453fad7.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\ACCICONS.EXE	fe9462599a08f62eb6d8035dd453fad7.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\ADOBEC~1.EXE	fe9462599a08f62eb6d8035dd453fad7.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\CLVIEW.EXE	fe9462599a08f62eb6d8035dd453fad7.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\IECONT~1.EXE	fe9462599a08f62eb6d8035dd453fad7.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmpconfig.exe	fe9462599a08f62eb6d8035dd453fad7.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\DW\DW20.EXE	fe9462599a08f62eb6d8035dd453fad7.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ielowutil.exe	fe9462599a08f62eb6d8035dd453fad7.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\1033\ONELEV.EXE	fe9462599a08f62eb6d8035dd453fad7.exe
File opened for modification	C:\PROGRA~2\WINDOW~1\wabmig.exe	fe9462599a08f62eb6d8035dd453fad7.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmplayer.exe	fe9462599a08f62eb6d8035dd453fad7.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.71\GOOGLE~3.EXE	fe9462599a08f62eb6d8035dd453fad7.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSQRY32.EXE	fe9462599a08f62eb6d8035dd453fad7.exe

Drops file in Windows directory 1 IoCs

Processes:

fe9462599a08f62eb6d8035dd453fad7.exe

description ioc process

File opened for modification C:\Windows\svchost.com fe9462599a08f62eb6d8035dd453fad7.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

description	ioc	process
File opened for modification	C:\Windows\svchost.com	fe9462599a08f62eb6d8035dd453fad7.exe

Modifies registry class 1 IoCs

Processes:

fe9462599a08f62eb6d8035dd453fad7.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.com \"%1\" %*"	fe9462599a08f62eb6d8035dd453fad7.exe

Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

fe9462599a08f62eb6d8035dd453fad7.exe

pid process

520 fe9462599a08f62eb6d8035dd453fad7.exe

pid	process
520	fe9462599a08f62eb6d8035dd453fad7.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

fe9462599a08f62eb6d8035dd453fad7.exefe9462599a08f62eb6d8035dd453fad7.exe

description	pid	process	target process
PID 1908 wrote to memory of 520	1908	fe9462599a08f62eb6d8035dd453fad7.exe	fe9462599a08f62eb6d8035dd453fad7.exe
PID 1908 wrote to memory of 520	1908	fe9462599a08f62eb6d8035dd453fad7.exe	fe9462599a08f62eb6d8035dd453fad7.exe
PID 1908 wrote to memory of 520	1908	fe9462599a08f62eb6d8035dd453fad7.exe	fe9462599a08f62eb6d8035dd453fad7.exe
PID 1908 wrote to memory of 520	1908	fe9462599a08f62eb6d8035dd453fad7.exe	fe9462599a08f62eb6d8035dd453fad7.exe
PID 520 wrote to memory of 872	520	fe9462599a08f62eb6d8035dd453fad7.exe	WerFault.exe
PID 520 wrote to memory of 872	520	fe9462599a08f62eb6d8035dd453fad7.exe	WerFault.exe
PID 520 wrote to memory of 872	520	fe9462599a08f62eb6d8035dd453fad7.exe	WerFault.exe
PID 520 wrote to memory of 872	520	fe9462599a08f62eb6d8035dd453fad7.exe	WerFault.exe
PID 520 wrote to memory of 872	520	fe9462599a08f62eb6d8035dd453fad7.exe	WerFault.exe
PID 520 wrote to memory of 872	520	fe9462599a08f62eb6d8035dd453fad7.exe	WerFault.exe
PID 520 wrote to memory of 872	520	fe9462599a08f62eb6d8035dd453fad7.exe	WerFault.exe

C:\Users\Admin\AppData\Local\Temp\fe9462599a08f62eb6d8035dd453fad7.exe
"C:\Users\Admin\AppData\Local\Temp\fe9462599a08f62eb6d8035dd453fad7.exe"
1⤵
- Modifies system executable filetype association
- Loads dropped DLL
- Drops file in Program Files directory
- Drops file in Windows directory
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1908
- C:\Users\Admin\AppData\Local\Temp\3582-490\fe9462599a08f62eb6d8035dd453fad7.exe
  "C:\Users\Admin\AppData\Local\Temp\3582-490\fe9462599a08f62eb6d8035dd453fad7.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:520
- - C:\Windows\system32\WerFault.exe
    C:\Windows\system32\WerFault.exe
    3⤵
    PID:872

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Change Default File Association

1

T1042

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\3582-490\fe9462599a08f62eb6d8035dd453fad7.exe

MD5
0ee2c60b8e99b5da3c495f1dd2861cd5

SHA1
0d040ef434e0db2679ce78ec8996895399cc2cf9

SHA256
1ca91e55867ad256da14a7b0c5679e94395da033e87aab24c9a9187963829a87

SHA512
996ae9cc73b2aee3049975c757210724b838e959fd79c811b80ea1b0c23a6949e40805f62a77a66400ae5e1b3d5d97dc0af28b8ff474794068efa43a6f4e9005

Download Submit
\PROGRA~2\Adobe\READER~1.0\Reader\LOGTRA~1.EXE

MD5
9e2b9928c89a9d0da1d3e8f4bd96afa7

SHA1
ec66cda99f44b62470c6930e5afda061579cde35

SHA256
8899b4ed3446b7d55b54defbc1acb7c5392a4b3bc8ec2cdc7c31171708965043

SHA512
2ca5ad1d0e12a8049de885b90b7f56fe77c868e0d6dae4ec4b6f3bc0bf7b2e73295cc9b1328c2b45357ffb0d7804622ab3f91a56140b098e93b691032d508156

Download Submit
\Users\Admin\AppData\Local\Temp\3582-490\fe9462599a08f62eb6d8035dd453fad7.exe

MD5
0ee2c60b8e99b5da3c495f1dd2861cd5

SHA1
0d040ef434e0db2679ce78ec8996895399cc2cf9

SHA256
1ca91e55867ad256da14a7b0c5679e94395da033e87aab24c9a9187963829a87

SHA512
996ae9cc73b2aee3049975c757210724b838e959fd79c811b80ea1b0c23a6949e40805f62a77a66400ae5e1b3d5d97dc0af28b8ff474794068efa43a6f4e9005

Download Submit
\Users\Admin\AppData\Local\Temp\3582-490\fe9462599a08f62eb6d8035dd453fad7.exe

MD5
0ee2c60b8e99b5da3c495f1dd2861cd5

SHA1
0d040ef434e0db2679ce78ec8996895399cc2cf9

SHA256
1ca91e55867ad256da14a7b0c5679e94395da033e87aab24c9a9187963829a87

SHA512
996ae9cc73b2aee3049975c757210724b838e959fd79c811b80ea1b0c23a6949e40805f62a77a66400ae5e1b3d5d97dc0af28b8ff474794068efa43a6f4e9005

Download Submit
memory/520-58-0x0000000000000000-mapping.dmp

Download
memory/872-61-0x0000000000000000-mapping.dmp

Download
memory/872-62-0x000007FEFBE21000-0x000007FEFBE23000-memory.dmp

Filesize
8KB

Download
memory/872-63-0x00000000001F0000-0x00000000001F1000-memory.dmp

Filesize
4KB

Download
memory/872-64-0x0000000001B40000-0x0000000001C0A000-memory.dmp

Filesize
808KB

Download
memory/1908-55-0x0000000076731000-0x0000000076733000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads