wannacry | 27e9077adcea97d74307a17dca2a02056449213cbc33bce937dd6465a1d5a90a

Analysis

max time kernel
153s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20220718-en
resource tags

arch:x64arch:x86image:win10v2004-20220718-enlocale:en-usos:windows10-2004-x64system
submitted
20/07/2022, 05:12

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
ea7bc1b9584fda1c36457aa3d2a559c8.dll
Size 5.0MB
Sample220720-fvvplscfej
SHA256 27e9077adcea97d74307a17dca2a02056449213cbc33bce937dd6465a1d5a90a
MD5 ea7bc1b9584fda1c36457aa3d2a559c8
SHA1 03b0c3f3fd59037bec3d5fc1cc04c43dd48a24fc
SHA512 afef46be83e20fdf8ddb2ca7dae4dbc16485cec85eedb6ce3af7458eac6516c3b84e00c55b0cc92ca212599eb708d34880f066bbbda4d66a8872798426c10feb
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 (3087) 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 3 IoCs

pid	Process
3944	mssecsvc.exe
4868	mssecsvc.exe
3488	tasksche.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\mssecsvc.exe	rundll32.exe
File created	C:\WINDOWS\tasksche.exe	mssecsvc.exe

Modifies data under HKEY_USERS 5 IoCs

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

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2524 wrote to memory of 1572	2524	rundll32.exe	76
PID 2524 wrote to memory of 1572	2524	rundll32.exe	76
PID 2524 wrote to memory of 1572	2524	rundll32.exe	76
PID 1572 wrote to memory of 3944	1572	rundll32.exe	77
PID 1572 wrote to memory of 3944	1572	rundll32.exe	77
PID 1572 wrote to memory of 3944	1572	rundll32.exe	77

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\ea7bc1b9584fda1c36457aa3d2a559c8.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2524
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\ea7bc1b9584fda1c36457aa3d2a559c8.dll,#1
  2⤵
  - Drops file in Windows directory
  - Suspicious use of WriteProcessMemory
  PID:1572
- - C:\WINDOWS\mssecsvc.exe
    C:\WINDOWS\mssecsvc.exe
    3⤵
    - Executes dropped EXE
    - Drops file in Windows directory
    PID:3944
  - - C:\WINDOWS\tasksche.exe
      C:\WINDOWS\tasksche.exe /i
      4⤵
      Executes dropped EXE
      PID:3488

C:\WINDOWS\mssecsvc.exe
C:\WINDOWS\mssecsvc.exe -m security
1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:4868

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

mssecsvc.exe

Path C:\WINDOWS\mssecsvc.exe
Size 3.6MB
SHA256 29c714db29c41578c10683ec18f38a14dc1017c063ac0b3b29ddbad0ba252612
MD5 4e36ee1861d8fbc502faf299906fbc6a
SHA1 ffbff4beaac34c3bdde574fad7425027bf6232a5
SHA512 9a9478c7518b390aa31817a8b67c00f6ec9e191a5484ed1de144c5dc12f0d3bff8ec987f2e467b431157b75a3a6268e44af9da8c3a3bbd6619c3b4ff1947ccb7
SSDEEP 49152:2nAQqMSPbcBVQej/1INRx+TSqTdX1HDAMEcaEau3R8yAH1plAHI:yDqPoBhz1aRxcSUDD593R8yAVp2HI
MD5 SHA1 SHA512 SSDEEP

Submit Download

mssecsvc.exe

Path C:\Windows\mssecsvc.exe
Size 3.6MB
SHA256 29c714db29c41578c10683ec18f38a14dc1017c063ac0b3b29ddbad0ba252612
MD5 4e36ee1861d8fbc502faf299906fbc6a
SHA1 ffbff4beaac34c3bdde574fad7425027bf6232a5
SHA512 9a9478c7518b390aa31817a8b67c00f6ec9e191a5484ed1de144c5dc12f0d3bff8ec987f2e467b431157b75a3a6268e44af9da8c3a3bbd6619c3b4ff1947ccb7
SSDEEP 49152:2nAQqMSPbcBVQej/1INRx+TSqTdX1HDAMEcaEau3R8yAH1plAHI:yDqPoBhz1aRxcSUDD593R8yAVp2HI
MD5 SHA1 SHA512 SSDEEP

Submit Download

mssecsvc.exe

Path C:\Windows\mssecsvc.exe
Size 3.6MB
SHA256 29c714db29c41578c10683ec18f38a14dc1017c063ac0b3b29ddbad0ba252612
MD5 4e36ee1861d8fbc502faf299906fbc6a
SHA1 ffbff4beaac34c3bdde574fad7425027bf6232a5
SHA512 9a9478c7518b390aa31817a8b67c00f6ec9e191a5484ed1de144c5dc12f0d3bff8ec987f2e467b431157b75a3a6268e44af9da8c3a3bbd6619c3b4ff1947ccb7
SSDEEP 49152:2nAQqMSPbcBVQej/1INRx+TSqTdX1HDAMEcaEau3R8yAH1plAHI:yDqPoBhz1aRxcSUDD593R8yAVp2HI
MD5 SHA1 SHA512 SSDEEP

Submit Download

tasksche.exe

Path C:\Windows\tasksche.exe
Size 3.4MB
SHA256 870eb51886b3a0a01da709683aef6e12dbd639333db1fca80ed92bc013c0e387
MD5 1fcfaca9df8370dd6c615673a48526f3
SHA1 8463d1f5154d3aea7a987b81fed8f43b89202ce9
SHA512 741d01f68dd55daa81b6a7ec97e537f10fb404b4b3b788abc3cbca8f4563d82164b834c69daae30175cbe821ed74b3b70233867c002019084c18dff72f70e3bf
SSDEEP 49152:nQqMSPbcBVQej/1INRx+TSqTdX1HDAMEcaEau3R8yAH1plAHj:QqPoBhz1aRxcSUDD593R8yAVp2Hj
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