wannacry | 50bc96d0df9d2e13211d73c578808bb4fbf21471d3acd6401e43e600d278a9ee

General

Target

2024-09-27_e5670e8159d0ae2d0c35235ecfaba450_wannacry.exe
Size

3.6MB
MD5

e5670e8159d0ae2d0c35235ecfaba450
SHA1

69e895fb65c1d660abae74785026165d6cc4e386
SHA256

50bc96d0df9d2e13211d73c578808bb4fbf21471d3acd6401e43e600d278a9ee
SHA512

c57e7aca7015261596b0deb6d18235663bc3d16761d7eed4ce72e2a16ec34d52d3716c51bee76b844ac2fb67d8a7342249e956448c9cae64b9499fc47eff77d7
SSDEEP

49152:2nAQqMSPbcBVF+TSqTdX1HkQo6SAARdhnvxJM0H9PA:yDqPoB3cSUDk36SAEdhvxWa9P

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3149) 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
2676	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	2024-09-27_e5670e8159d0ae2d0c35235ecfaba450_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-09-27_e5670e8159d0ae2d0c35235ecfaba450_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	2024-09-27_e5670e8159d0ae2d0c35235ecfaba450_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-27_e5670e8159d0ae2d0c35235ecfaba450_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-27_e5670e8159d0ae2d0c35235ecfaba450_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-09-27_e5670e8159d0ae2d0c35235ecfaba450_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\1e-1c-09-a5-de-39\WpadDecisionReason = "1"	2024-09-27_e5670e8159d0ae2d0c35235ecfaba450_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\1e-1c-09-a5-de-39\WpadDecisionTime = 90d00ea40311db01	2024-09-27_e5670e8159d0ae2d0c35235ecfaba450_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\1e-1c-09-a5-de-39\WpadDecision = "0"	2024-09-27_e5670e8159d0ae2d0c35235ecfaba450_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{9D7A7E21-6C6C-4434-A3B2-01611F8FF2E4}\WpadDecisionReason = "1"	2024-09-27_e5670e8159d0ae2d0c35235ecfaba450_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-09-27_e5670e8159d0ae2d0c35235ecfaba450_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-27_e5670e8159d0ae2d0c35235ecfaba450_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-09-27_e5670e8159d0ae2d0c35235ecfaba450_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-09-27_e5670e8159d0ae2d0c35235ecfaba450_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-09-27_e5670e8159d0ae2d0c35235ecfaba450_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00d8000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-27_e5670e8159d0ae2d0c35235ecfaba450_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{9D7A7E21-6C6C-4434-A3B2-01611F8FF2E4}	2024-09-27_e5670e8159d0ae2d0c35235ecfaba450_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{9D7A7E21-6C6C-4434-A3B2-01611F8FF2E4}\WpadDecision = "0"	2024-09-27_e5670e8159d0ae2d0c35235ecfaba450_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\1e-1c-09-a5-de-39	2024-09-27_e5670e8159d0ae2d0c35235ecfaba450_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{9D7A7E21-6C6C-4434-A3B2-01611F8FF2E4}\1e-1c-09-a5-de-39	2024-09-27_e5670e8159d0ae2d0c35235ecfaba450_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-09-27_e5670e8159d0ae2d0c35235ecfaba450_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-09-27_e5670e8159d0ae2d0c35235ecfaba450_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-09-27_e5670e8159d0ae2d0c35235ecfaba450_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{9D7A7E21-6C6C-4434-A3B2-01611F8FF2E4}\WpadDecisionTime = 90d00ea40311db01	2024-09-27_e5670e8159d0ae2d0c35235ecfaba450_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-09-27_e5670e8159d0ae2d0c35235ecfaba450_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-09-27_e5670e8159d0ae2d0c35235ecfaba450_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-09-27_e5670e8159d0ae2d0c35235ecfaba450_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{9D7A7E21-6C6C-4434-A3B2-01611F8FF2E4}\WpadNetworkName = "Network 3"	2024-09-27_e5670e8159d0ae2d0c35235ecfaba450_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-09-27_e5670e8159d0ae2d0c35235ecfaba450_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-27_e5670e8159d0ae2d0c35235ecfaba450_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2720
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2676

C:\Users\Admin\AppData\Local\Temp\2024-09-27_e5670e8159d0ae2d0c35235ecfaba450_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-09-27_e5670e8159d0ae2d0c35235ecfaba450_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2868

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
62de38fd7e4af3ddf09a2cfcdad030e4

SHA1
fe98afe91ac76d27c29e0b408b717d6402617fab

SHA256
d6da217444ba03d92ef7124cf6e8278d27f2c27c5373a354a6bb4e8ee1e0d093

SHA512
b07a7475027e93bc47f7467606c232bced5a8dd3f6429050d65d9d60f8d060bc66f0a989f631c75a550d89bd243147121bc9ccf0edf268e9decad3c986c32eb9

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Analysis

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