wannacry | 6bc2e4caadb4ace85a3501511fd0432f01c135629ad77c6d9fc012243445803e

General

Target

2025-02-21_5acc7cb323031dc960fc01097a3b8b77_wannacry.exe
Size

3.6MB
MD5

5acc7cb323031dc960fc01097a3b8b77
SHA1

d44f17a384c526cb884f63346195fdb23e63bc23
SHA256

6bc2e4caadb4ace85a3501511fd0432f01c135629ad77c6d9fc012243445803e
SHA512

76ee874dcd4692baeead65b1d71777a0349b1e1a197d9fc329e7952bcfa311323a7b53b29a5f53c5e801d56d68cba5439236826e86154ad07b1ede4c8bd8bc3b
SSDEEP

98304:yDRPoBhz1aRxcSUDk36SAEdhvxWa9P593R8yAVp2HI:yDRPe1Cxcxk3ZAEUadzR8yc4HI

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Wannacry family
wannacry
Contacts a large (3165) amount of remote hosts 1 TTPs
This may indicate a network scan to discover remotely running services.
discovery

Network Service Discovery
T1046

Executes dropped EXE 1 IoCs

pid	Process
2648	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 Discovery
T1046

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	2025-02-21_5acc7cb323031dc960fc01097a3b8b77_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2025-02-21_5acc7cb323031dc960fc01097a3b8b77_wannacry.exe

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-21_5acc7cb323031dc960fc01097a3b8b77_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-21_5acc7cb323031dc960fc01097a3b8b77_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{CE32EE57-E004-425C-82A9-40240068FFD2}\02-db-02-10-05-bc	2025-02-21_5acc7cb323031dc960fc01097a3b8b77_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\02-db-02-10-05-bc\WpadDecisionTime = d05e4a8f8b84db01	2025-02-21_5acc7cb323031dc960fc01097a3b8b77_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\02-db-02-10-05-bc\WpadDecision = "0"	2025-02-21_5acc7cb323031dc960fc01097a3b8b77_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f016a000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-02-21_5acc7cb323031dc960fc01097a3b8b77_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2025-02-21_5acc7cb323031dc960fc01097a3b8b77_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2025-02-21_5acc7cb323031dc960fc01097a3b8b77_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2025-02-21_5acc7cb323031dc960fc01097a3b8b77_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\02-db-02-10-05-bc	2025-02-21_5acc7cb323031dc960fc01097a3b8b77_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\02-db-02-10-05-bc\WpadDecisionReason = "1"	2025-02-21_5acc7cb323031dc960fc01097a3b8b77_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-02-21_5acc7cb323031dc960fc01097a3b8b77_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-02-21_5acc7cb323031dc960fc01097a3b8b77_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{CE32EE57-E004-425C-82A9-40240068FFD2}\WpadNetworkName = "Network 3"	2025-02-21_5acc7cb323031dc960fc01097a3b8b77_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2025-02-21_5acc7cb323031dc960fc01097a3b8b77_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2025-02-21_5acc7cb323031dc960fc01097a3b8b77_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2025-02-21_5acc7cb323031dc960fc01097a3b8b77_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2025-02-21_5acc7cb323031dc960fc01097a3b8b77_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2025-02-21_5acc7cb323031dc960fc01097a3b8b77_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{CE32EE57-E004-425C-82A9-40240068FFD2}	2025-02-21_5acc7cb323031dc960fc01097a3b8b77_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{CE32EE57-E004-425C-82A9-40240068FFD2}\WpadDecisionReason = "1"	2025-02-21_5acc7cb323031dc960fc01097a3b8b77_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{CE32EE57-E004-425C-82A9-40240068FFD2}\WpadDecision = "0"	2025-02-21_5acc7cb323031dc960fc01097a3b8b77_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2025-02-21_5acc7cb323031dc960fc01097a3b8b77_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2025-02-21_5acc7cb323031dc960fc01097a3b8b77_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2025-02-21_5acc7cb323031dc960fc01097a3b8b77_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{CE32EE57-E004-425C-82A9-40240068FFD2}\WpadDecisionTime = d05e4a8f8b84db01	2025-02-21_5acc7cb323031dc960fc01097a3b8b77_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2025-02-21_5acc7cb323031dc960fc01097a3b8b77_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-21_5acc7cb323031dc960fc01097a3b8b77_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:1156
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2648

C:\Users\Admin\AppData\Local\Temp\2025-02-21_5acc7cb323031dc960fc01097a3b8b77_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2025-02-21_5acc7cb323031dc960fc01097a3b8b77_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:1912

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Network Service Discovery

2

T1046

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Windows\tasksche.exe

Filesize
3.4MB

MD5
3126b4881a1711a51abf2db11726353e

SHA1
bb0ca534da798d3662aa0feef808c444b6de092b

SHA256
6395d873ba41729d9c319da5a4152fcd5b5d72bb627dae3c1aaf9e6333303ae4

SHA512
296d5fd5ac6d8dbe1dae61aa03c83fe0f4248ef517bdc22e0e2dba02163cdc080272284e91f877c67b6246585e130ad4f25042f9fd15495e9be127bf6263d735

Download Submit

Resubmissions

Analysis

Sharing