wannacry | ab6c25477124e39bbc23f752d98eaeffeaeef218be4a07453821be81fc103263

General

Target

2025-01-27_39ba1ea673d776a78c91eec3a3f21540_wannacry.exe
Size

3.6MB
MD5

39ba1ea673d776a78c91eec3a3f21540
SHA1

012139f655c66f32c09fd9d897f772c31746306f
SHA256

ab6c25477124e39bbc23f752d98eaeffeaeef218be4a07453821be81fc103263
SHA512

4d6cdd6a7d085c12ecb594c22146c33ac48f25b0287635e50ffc54c7689732243bb03c7611fdbd39278df10f4be56913cb502812d3ed5ba16f461e2948a4c9f5
SSDEEP

98304:XDqPoBhz1scSUDk36SAEdhvxWa9P593R8yAVp2HI:XDqPe1scxk3ZAEUadzR8yc4HI

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 (3249) 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
2868	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	2025-01-27_39ba1ea673d776a78c91eec3a3f21540_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2025-01-27_39ba1ea673d776a78c91eec3a3f21540_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	2025-01-27_39ba1ea673d776a78c91eec3a3f21540_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-27_39ba1ea673d776a78c91eec3a3f21540_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{80DE928B-14BA-4435-9CAC-D5DF3FB6F6AE}\WpadDecisionTime = c04d13796d70db01	2025-01-27_39ba1ea673d776a78c91eec3a3f21540_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\c2-07-7c-df-77-56\WpadDecision = "0"	2025-01-27_39ba1ea673d776a78c91eec3a3f21540_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{80DE928B-14BA-4435-9CAC-D5DF3FB6F6AE}	2025-01-27_39ba1ea673d776a78c91eec3a3f21540_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2025-01-27_39ba1ea673d776a78c91eec3a3f21540_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2025-01-27_39ba1ea673d776a78c91eec3a3f21540_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2025-01-27_39ba1ea673d776a78c91eec3a3f21540_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{80DE928B-14BA-4435-9CAC-D5DF3FB6F6AE}\WpadDecisionReason = "1"	2025-01-27_39ba1ea673d776a78c91eec3a3f21540_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\c2-07-7c-df-77-56\WpadDecisionReason = "1"	2025-01-27_39ba1ea673d776a78c91eec3a3f21540_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2025-01-27_39ba1ea673d776a78c91eec3a3f21540_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-27_39ba1ea673d776a78c91eec3a3f21540_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2025-01-27_39ba1ea673d776a78c91eec3a3f21540_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2025-01-27_39ba1ea673d776a78c91eec3a3f21540_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2025-01-27_39ba1ea673d776a78c91eec3a3f21540_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{80DE928B-14BA-4435-9CAC-D5DF3FB6F6AE}\WpadNetworkName = "Network 3"	2025-01-27_39ba1ea673d776a78c91eec3a3f21540_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\c2-07-7c-df-77-56	2025-01-27_39ba1ea673d776a78c91eec3a3f21540_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{80DE928B-14BA-4435-9CAC-D5DF3FB6F6AE}\c2-07-7c-df-77-56	2025-01-27_39ba1ea673d776a78c91eec3a3f21540_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2025-01-27_39ba1ea673d776a78c91eec3a3f21540_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\c2-07-7c-df-77-56\WpadDecisionTime = c04d13796d70db01	2025-01-27_39ba1ea673d776a78c91eec3a3f21540_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2025-01-27_39ba1ea673d776a78c91eec3a3f21540_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-27_39ba1ea673d776a78c91eec3a3f21540_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2025-01-27_39ba1ea673d776a78c91eec3a3f21540_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00d6000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-27_39ba1ea673d776a78c91eec3a3f21540_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{80DE928B-14BA-4435-9CAC-D5DF3FB6F6AE}\WpadDecision = "0"	2025-01-27_39ba1ea673d776a78c91eec3a3f21540_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2025-01-27_39ba1ea673d776a78c91eec3a3f21540_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2025-01-27_39ba1ea673d776a78c91eec3a3f21540_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-27_39ba1ea673d776a78c91eec3a3f21540_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2700
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2868

C:\Users\Admin\AppData\Local\Temp\2025-01-27_39ba1ea673d776a78c91eec3a3f21540_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2025-01-27_39ba1ea673d776a78c91eec3a3f21540_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2920

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
e9203570b73dfb448833f759ee0917f4

SHA1
ce6bfa8407948e9d39b24a1e548505aec4f138a7

SHA256
b1149e1f2c8418144d0e79d4a14e85169b8478d2ac4e7baf72712364aec3e4b3

SHA512
44e4576e73ba41635d756d6352e7623a86b6e5cc67475b544b0fa99a3090ac36a2525e3484ab25fd1539d2674162e4c3cbcaf1c112c97d329f214b828b93d179

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