wannacry | 0bf03d84ce97a6f5efa5fee889cc6de6ef892a0312fdbbdc1aafc7ed87ca574a

Analysis

max time kernel
150s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20220721-en
resource tags

arch:x64arch:x86image:win10v2004-20220721-enlocale:en-usos:windows10-2004-x64system
submitted
22/07/2022, 18:14

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
e6cc34d3d80b6941ac7fbd8bbb1ddbc5.dll
Size 5.0MB
Sample220722-wva8zahafn
SHA256 0bf03d84ce97a6f5efa5fee889cc6de6ef892a0312fdbbdc1aafc7ed87ca574a
MD5 e6cc34d3d80b6941ac7fbd8bbb1ddbc5
SHA1 1f16799ed982e6b7598071f847d7f494a1007b60
SHA512 7d7e9bd092f996d6238540ef2773a768b8babba15b853d2fadc85364ec33f6de730e46b4039dd36df43091c9ad0674b83478dbf4891e899a61e633ed5bb1480d
MD5 SHA1 SHA512

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3246) amount of remote hosts 1 TTPs
This may indicate a network scan to discover remotely running services.
discovery

Network Service Scanning
T1046

Executes dropped EXE 2 IoCs

pid	Process
3116	mssecsvr.exe
4572	mssecsvr.exe

Creates a large amount of network flows 1 TTPs
This may indicate a network scan to discover remotely running services.
discovery

Network Service Scanning
T1046

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\WINDOWS\mssecsvr.exe	rundll32.exe
File created	C:\WINDOWS\tasksche.exe	mssecsvr.exe

Modifies data under HKEY_USERS 5 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	mssecsvr.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	mssecsvr.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	mssecsvr.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	mssecsvr.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	mssecsvr.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3244 wrote to memory of 3152	3244	rundll32.exe	77
PID 3244 wrote to memory of 3152	3244	rundll32.exe	77
PID 3244 wrote to memory of 3152	3244	rundll32.exe	77
PID 3152 wrote to memory of 3116	3152	rundll32.exe	78
PID 3152 wrote to memory of 3116	3152	rundll32.exe	78
PID 3152 wrote to memory of 3116	3152	rundll32.exe	78

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\e6cc34d3d80b6941ac7fbd8bbb1ddbc5.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3244
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\e6cc34d3d80b6941ac7fbd8bbb1ddbc5.dll,#1
  2⤵
  - Drops file in Windows directory
  - Suspicious use of WriteProcessMemory
  PID:3152
- - C:\WINDOWS\mssecsvr.exe
    C:\WINDOWS\mssecsvr.exe
    3⤵
    - Executes dropped EXE
    - Drops file in Windows directory
    PID:3116

C:\WINDOWS\mssecsvr.exe
C:\WINDOWS\mssecsvr.exe -m security
1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:4572

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Network Service Scanning

T1046

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

mssecsvr.exe

Path C:\WINDOWS\mssecsvr.exe
Size 2.2MB
SHA256 1a07fb2a747ec24fca6e86e5aa267c0bab11690d443fb74534e31b796d9feef2
MD5 5414d90bb304f8323af1faee4e389bf0
SHA1 e940f35ff5d58443553424747f424a9efbae5be9
SHA512 faf5dba180dcf96e5e2e57b10020d82c8ea80201c10d2648ca0beadff59b71ed60fabe6c2cccd84b24f7124de7b0b637dc654f12599b172f2966288b24164827
SSDEEP 49152:QnsQ2MSPbcBVQej/1INRx+TSqTdX1HkQo6SAARMTvn:Q/2PoBhz1aRxcSUDk36SAEM7n
MD5 SHA1 SHA512 SSDEEP

Submit Download

mssecsvr.exe

Path C:\Windows\mssecsvr.exe
Size 2.2MB
SHA256 1a07fb2a747ec24fca6e86e5aa267c0bab11690d443fb74534e31b796d9feef2
MD5 5414d90bb304f8323af1faee4e389bf0
SHA1 e940f35ff5d58443553424747f424a9efbae5be9
SHA512 faf5dba180dcf96e5e2e57b10020d82c8ea80201c10d2648ca0beadff59b71ed60fabe6c2cccd84b24f7124de7b0b637dc654f12599b172f2966288b24164827
SSDEEP 49152:QnsQ2MSPbcBVQej/1INRx+TSqTdX1HkQo6SAARMTvn:Q/2PoBhz1aRxcSUDk36SAEM7n
MD5 SHA1 SHA512 SSDEEP

Submit Download

mssecsvr.exe

Path C:\Windows\mssecsvr.exe
Size 2.2MB
SHA256 1a07fb2a747ec24fca6e86e5aa267c0bab11690d443fb74534e31b796d9feef2
MD5 5414d90bb304f8323af1faee4e389bf0
SHA1 e940f35ff5d58443553424747f424a9efbae5be9
SHA512 faf5dba180dcf96e5e2e57b10020d82c8ea80201c10d2648ca0beadff59b71ed60fabe6c2cccd84b24f7124de7b0b637dc654f12599b172f2966288b24164827
SSDEEP 49152:QnsQ2MSPbcBVQej/1INRx+TSqTdX1HkQo6SAARMTvn:Q/2PoBhz1aRxcSUDk36SAEM7n
MD5 SHA1 SHA512 SSDEEP

Submit Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads