wannacry | dc4c2916487c6ea6f057535f5a2ed16e36106694c8c17d2e70f1eaaeeb6e995b

General

Target

2025-02-01_ebe613da13b17d64516bb6c4cc57ab29_wannacry.exe
Size

5.0MB
MD5

ebe613da13b17d64516bb6c4cc57ab29
SHA1

efd440e69f1edad195b406122677da20481fc0cc
SHA256

dc4c2916487c6ea6f057535f5a2ed16e36106694c8c17d2e70f1eaaeeb6e995b
SHA512

64e6de99f19cea0b8bfe936f197657896fae08a8b5856574bf6a4be434d780ea3cb68385c352e90f692d83d82405a0b2ce805049760d316a9fe34bb419f823be
SSDEEP

49152:2nAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAA7rz4or:yDqPoBhz1aRxcSUDk36SAerdr

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 (3254) 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
2688	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	2025-02-01_ebe613da13b17d64516bb6c4cc57ab29_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2025-02-01_ebe613da13b17d64516bb6c4cc57ab29_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	2025-02-01_ebe613da13b17d64516bb6c4cc57ab29_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-01_ebe613da13b17d64516bb6c4cc57ab29_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2025-02-01_ebe613da13b17d64516bb6c4cc57ab29_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2025-02-01_ebe613da13b17d64516bb6c4cc57ab29_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3375283B-47F2-4070-9CC3-06DFF0EEF167}\WpadDecision = "0"	2025-02-01_ebe613da13b17d64516bb6c4cc57ab29_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\b6-96-00-cc-7d-e0	2025-02-01_ebe613da13b17d64516bb6c4cc57ab29_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3375283B-47F2-4070-9CC3-06DFF0EEF167}\b6-96-00-cc-7d-e0	2025-02-01_ebe613da13b17d64516bb6c4cc57ab29_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2025-02-01_ebe613da13b17d64516bb6c4cc57ab29_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-02-01_ebe613da13b17d64516bb6c4cc57ab29_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2025-02-01_ebe613da13b17d64516bb6c4cc57ab29_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2025-02-01_ebe613da13b17d64516bb6c4cc57ab29_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\b6-96-00-cc-7d-e0\WpadDecisionReason = "1"	2025-02-01_ebe613da13b17d64516bb6c4cc57ab29_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2025-02-01_ebe613da13b17d64516bb6c4cc57ab29_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2025-02-01_ebe613da13b17d64516bb6c4cc57ab29_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2025-02-01_ebe613da13b17d64516bb6c4cc57ab29_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3375283B-47F2-4070-9CC3-06DFF0EEF167}\WpadDecisionReason = "1"	2025-02-01_ebe613da13b17d64516bb6c4cc57ab29_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\b6-96-00-cc-7d-e0\WpadDecisionTime = 10f9c647d274db01	2025-02-01_ebe613da13b17d64516bb6c4cc57ab29_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3375283B-47F2-4070-9CC3-06DFF0EEF167}	2025-02-01_ebe613da13b17d64516bb6c4cc57ab29_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3375283B-47F2-4070-9CC3-06DFF0EEF167}\WpadDecisionTime = 10f9c647d274db01	2025-02-01_ebe613da13b17d64516bb6c4cc57ab29_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3375283B-47F2-4070-9CC3-06DFF0EEF167}\WpadNetworkName = "Network 3"	2025-02-01_ebe613da13b17d64516bb6c4cc57ab29_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-02-01_ebe613da13b17d64516bb6c4cc57ab29_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2025-02-01_ebe613da13b17d64516bb6c4cc57ab29_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2025-02-01_ebe613da13b17d64516bb6c4cc57ab29_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2025-02-01_ebe613da13b17d64516bb6c4cc57ab29_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f011c000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-02-01_ebe613da13b17d64516bb6c4cc57ab29_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\b6-96-00-cc-7d-e0\WpadDecision = "0"	2025-02-01_ebe613da13b17d64516bb6c4cc57ab29_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2025-02-01_ebe613da13b17d64516bb6c4cc57ab29_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-01_ebe613da13b17d64516bb6c4cc57ab29_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2952
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2688

C:\Users\Admin\AppData\Local\Temp\2025-02-01_ebe613da13b17d64516bb6c4cc57ab29_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2025-02-01_ebe613da13b17d64516bb6c4cc57ab29_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2632

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

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Downloads

C:\Windows\tasksche.exe

Filesize
3.4MB

MD5
23dfea040171643faf118130c9f66514

SHA1
e47d77b74114b0427b6a674a357b9df6a9afe231

SHA256
262a2c43808c6a08057b7e70ebe3d6665691b4873f98609205655cf3a08c64d6

SHA512
4dd0ffd23272f713f0d461dcb577c8a3d184b93d14f9a5612d0a5e55c1eb32ccf9e63831c61e8ad63ac1e092d3223114a11f797c10bac97d75ed40cf7f7bde68

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