wannacry | 5aa221115382760de0e2092f28af9946308ea4f677a354c7aab57cb8e3b89fd8

General

Target

2025-02-18_d2f6c9795f16520e7b45e3d6543e1154_wannacry.exe
Size

5.0MB
MD5

d2f6c9795f16520e7b45e3d6543e1154
SHA1

923ae92fcb93ea78ba21892efc5275b5aa044151
SHA256

5aa221115382760de0e2092f28af9946308ea4f677a354c7aab57cb8e3b89fd8
SHA512

35148215fee34530ce68b50d10b3af65708dffa33dd6d188821c69ac1abe2d167d781cbb57f702520aa597f281cac52e80cec365b4e4c00bf92d4ec0e2ef6161
SSDEEP

49152:2nAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAARdhnvxJM0H96:yDqPoBhz1aRxcSUDk36SAEdhvxWa96

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 (3067) 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
2400	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	2025-02-18_d2f6c9795f16520e7b45e3d6543e1154_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2025-02-18_d2f6c9795f16520e7b45e3d6543e1154_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	2025-02-18_d2f6c9795f16520e7b45e3d6543e1154_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-18_d2f6c9795f16520e7b45e3d6543e1154_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2025-02-18_d2f6c9795f16520e7b45e3d6543e1154_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2025-02-18_d2f6c9795f16520e7b45e3d6543e1154_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2025-02-18_d2f6c9795f16520e7b45e3d6543e1154_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{F9466398-6D93-402C-8269-414A1E0EA80B}\WpadNetworkName = "Network 3"	2025-02-18_d2f6c9795f16520e7b45e3d6543e1154_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\3a-43-9d-b4-86-2f\WpadDecision = "0"	2025-02-18_d2f6c9795f16520e7b45e3d6543e1154_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-02-18_d2f6c9795f16520e7b45e3d6543e1154_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2025-02-18_d2f6c9795f16520e7b45e3d6543e1154_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-02-18_d2f6c9795f16520e7b45e3d6543e1154_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2025-02-18_d2f6c9795f16520e7b45e3d6543e1154_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{F9466398-6D93-402C-8269-414A1E0EA80B}\WpadDecisionTime = e0cdd3d7ba81db01	2025-02-18_d2f6c9795f16520e7b45e3d6543e1154_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2025-02-18_d2f6c9795f16520e7b45e3d6543e1154_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2025-02-18_d2f6c9795f16520e7b45e3d6543e1154_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2025-02-18_d2f6c9795f16520e7b45e3d6543e1154_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\3a-43-9d-b4-86-2f	2025-02-18_d2f6c9795f16520e7b45e3d6543e1154_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\3a-43-9d-b4-86-2f\WpadDecisionReason = "1"	2025-02-18_d2f6c9795f16520e7b45e3d6543e1154_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\3a-43-9d-b4-86-2f\WpadDecisionTime = e0cdd3d7ba81db01	2025-02-18_d2f6c9795f16520e7b45e3d6543e1154_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2025-02-18_d2f6c9795f16520e7b45e3d6543e1154_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00be000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-02-18_d2f6c9795f16520e7b45e3d6543e1154_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{F9466398-6D93-402C-8269-414A1E0EA80B}\WpadDecision = "0"	2025-02-18_d2f6c9795f16520e7b45e3d6543e1154_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{F9466398-6D93-402C-8269-414A1E0EA80B}\WpadDecisionReason = "1"	2025-02-18_d2f6c9795f16520e7b45e3d6543e1154_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{F9466398-6D93-402C-8269-414A1E0EA80B}\3a-43-9d-b4-86-2f	2025-02-18_d2f6c9795f16520e7b45e3d6543e1154_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2025-02-18_d2f6c9795f16520e7b45e3d6543e1154_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2025-02-18_d2f6c9795f16520e7b45e3d6543e1154_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{F9466398-6D93-402C-8269-414A1E0EA80B}	2025-02-18_d2f6c9795f16520e7b45e3d6543e1154_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2025-02-18_d2f6c9795f16520e7b45e3d6543e1154_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-18_d2f6c9795f16520e7b45e3d6543e1154_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:1992
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2400

C:\Users\Admin\AppData\Local\Temp\2025-02-18_d2f6c9795f16520e7b45e3d6543e1154_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2025-02-18_d2f6c9795f16520e7b45e3d6543e1154_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
688352ca6d5d3f9cbed5db412a97c8d9

SHA1
9a06d693f55683a027a0b09b10ed573e96455814

SHA256
6f948d8efd7e4322dff551327ae72626d2f7778357b1c85b035abae5f092dfd9

SHA512
253a06f89d41144f777fb62bb34a81a3baac8c258386d3eca8ee79f244bdb9873a92f2208c99cf95caee1f3113b51de42dad5ea89ad4024e50ed911b67500b03

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Analysis

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