wannacry | b56e00696cb8d5c824569e48b544f17d07b2f5cd2985a35ab11598a2cc424c16

Analysis

max time kernel
150s
max time network
153s
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, 07:34

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General

Target
2b3e78c15dac89342f1877465e292d7d.dll
Size 5.0MB
Sample220720-jd5d9sdbe4
SHA256 b56e00696cb8d5c824569e48b544f17d07b2f5cd2985a35ab11598a2cc424c16
MD5 2b3e78c15dac89342f1877465e292d7d
SHA1 725bac5b57fd334266a3925e9e668fd04de9b6ad
SHA512 900c28a81f4cca92ce761473a68fa98742bf882fb2cb118bdb6d4ffb304a399c9ac8ed5bd5b7f686b2254745a2e95da5c57719df7270c82c2ab1211fcfe7fc80
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 (3264) 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
4880	mssecsvc.exe
3056	mssecsvc.exe
3432	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 1708 wrote to memory of 2412	1708	rundll32.exe	78
PID 1708 wrote to memory of 2412	1708	rundll32.exe	78
PID 1708 wrote to memory of 2412	1708	rundll32.exe	78
PID 2412 wrote to memory of 4880	2412	rundll32.exe	79
PID 2412 wrote to memory of 4880	2412	rundll32.exe	79
PID 2412 wrote to memory of 4880	2412	rundll32.exe	79

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\2b3e78c15dac89342f1877465e292d7d.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1708
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\2b3e78c15dac89342f1877465e292d7d.dll,#1
  2⤵
  - Drops file in Windows directory
  - Suspicious use of WriteProcessMemory
  PID:2412
- - C:\WINDOWS\mssecsvc.exe
    C:\WINDOWS\mssecsvc.exe
    3⤵
    - Executes dropped EXE
    - Drops file in Windows directory
    PID:4880
  - - C:\WINDOWS\tasksche.exe
      C:\WINDOWS\tasksche.exe /i
      4⤵
      Executes dropped EXE
      PID:3432

C:\WINDOWS\mssecsvc.exe
C:\WINDOWS\mssecsvc.exe -m security
1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:3056

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

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Downloads

mssecsvc.exe

Path C:\WINDOWS\mssecsvc.exe
Size 3.6MB
SHA256 fd9cd064d6e553e22254d6b1fcd746bf792428f0ab22fa8ca368ff9f41731ca8
MD5 8fc1d22f4f7b401ae124feccf1b5c525
SHA1 2b44885b8cc7543446e5c4e1a14106e0d7db49b6
SHA512 7cc5b2409dec6009e5f457356638f3c04f269f5bffd2e080d426a27b9837a924c634f80f5ba3f5e3a2cd5fee76b752b8577c516b4c7bc8e8852e859e96fcf526
SSDEEP 49152:XnAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAARdhnvxJM0H9:XDqPoBhz1aRxcSUDk36SAEdhvxWa9
MD5 SHA1 SHA512 SSDEEP

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mssecsvc.exe

Path C:\Windows\mssecsvc.exe
Size 3.6MB
SHA256 fd9cd064d6e553e22254d6b1fcd746bf792428f0ab22fa8ca368ff9f41731ca8
MD5 8fc1d22f4f7b401ae124feccf1b5c525
SHA1 2b44885b8cc7543446e5c4e1a14106e0d7db49b6
SHA512 7cc5b2409dec6009e5f457356638f3c04f269f5bffd2e080d426a27b9837a924c634f80f5ba3f5e3a2cd5fee76b752b8577c516b4c7bc8e8852e859e96fcf526
SSDEEP 49152:XnAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAARdhnvxJM0H9:XDqPoBhz1aRxcSUDk36SAEdhvxWa9
MD5 SHA1 SHA512 SSDEEP

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mssecsvc.exe

Path C:\Windows\mssecsvc.exe
Size 3.6MB
SHA256 fd9cd064d6e553e22254d6b1fcd746bf792428f0ab22fa8ca368ff9f41731ca8
MD5 8fc1d22f4f7b401ae124feccf1b5c525
SHA1 2b44885b8cc7543446e5c4e1a14106e0d7db49b6
SHA512 7cc5b2409dec6009e5f457356638f3c04f269f5bffd2e080d426a27b9837a924c634f80f5ba3f5e3a2cd5fee76b752b8577c516b4c7bc8e8852e859e96fcf526
SSDEEP 49152:XnAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAARdhnvxJM0H9:XDqPoBhz1aRxcSUDk36SAEdhvxWa9
MD5 SHA1 SHA512 SSDEEP

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tasksche.exe

Path C:\Windows\tasksche.exe
Size 3.4MB
SHA256 80e211eca3c140f1a8168ec4fa5c49c7c366e3b8f14dd79301962df91e2fc890
MD5 c23c03d983d146043d45f4e78973850d
SHA1 52ea200315ab77573122ed7ac3d7be47139f9918
SHA512 4790ffb1157609548f23048a3bb98074621e8947cd30e694c259a08012595aa218ae39cbeee47c470a958ab45805668b89efaa4a0676a24afea788e79caeade2
SSDEEP 49152:nQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAARdhnvxJM0H9:QqPoBhz1aRxcSUDk36SAEdhvxWa9
MD5 SHA1 SHA512 SSDEEP

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads