wannacry | 22722b2630b9a967f2d8374f8d306a57c59c9b73fb97403281b1112713e78fcf

General

Target

2025-01-11_a9a08c7004ea83690469eb896752e637_wannacry.exe
Size

3.6MB
MD5

a9a08c7004ea83690469eb896752e637
SHA1

7bd61f8377d1d0cc44ed954832f63f3803819a8d
SHA256

22722b2630b9a967f2d8374f8d306a57c59c9b73fb97403281b1112713e78fcf
SHA512

c32ae9ae326281dfefd1f998b90dd8bc5ac823af7debbf3e17e4add43202135bc8be2d08e2a91609654c1d4f58b454a37941c5f32ebd5024c522d00108119db5
SSDEEP

49152:2nAQqMSPbcBVNINRx+TSqTdX1HkQo6SAARdhnv:yDqPoBfaRxcSUDk36SAEdhv

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 (3212) 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
2768	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	2025-01-11_a9a08c7004ea83690469eb896752e637_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2025-01-11_a9a08c7004ea83690469eb896752e637_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	2025-01-11_a9a08c7004ea83690469eb896752e637_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-11_a9a08c7004ea83690469eb896752e637_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2025-01-11_a9a08c7004ea83690469eb896752e637_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2025-01-11_a9a08c7004ea83690469eb896752e637_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2025-01-11_a9a08c7004ea83690469eb896752e637_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{2102CCE8-2A73-466E-AF08-AE5DAC98551A}\WpadDecisionTime = 2069a604db63db01	2025-01-11_a9a08c7004ea83690469eb896752e637_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\4e-c5-17-1c-b3-12\WpadDecisionTime = 2069a604db63db01	2025-01-11_a9a08c7004ea83690469eb896752e637_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2025-01-11_a9a08c7004ea83690469eb896752e637_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2025-01-11_a9a08c7004ea83690469eb896752e637_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2025-01-11_a9a08c7004ea83690469eb896752e637_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{2102CCE8-2A73-466E-AF08-AE5DAC98551A}	2025-01-11_a9a08c7004ea83690469eb896752e637_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{2102CCE8-2A73-466E-AF08-AE5DAC98551A}\WpadNetworkName = "Network 3"	2025-01-11_a9a08c7004ea83690469eb896752e637_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\4e-c5-17-1c-b3-12\WpadDecision = "0"	2025-01-11_a9a08c7004ea83690469eb896752e637_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-11_a9a08c7004ea83690469eb896752e637_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2025-01-11_a9a08c7004ea83690469eb896752e637_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2025-01-11_a9a08c7004ea83690469eb896752e637_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{2102CCE8-2A73-466E-AF08-AE5DAC98551A}\WpadDecisionReason = "1"	2025-01-11_a9a08c7004ea83690469eb896752e637_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\4e-c5-17-1c-b3-12	2025-01-11_a9a08c7004ea83690469eb896752e637_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{2102CCE8-2A73-466E-AF08-AE5DAC98551A}\4e-c5-17-1c-b3-12	2025-01-11_a9a08c7004ea83690469eb896752e637_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\4e-c5-17-1c-b3-12\WpadDecisionReason = "1"	2025-01-11_a9a08c7004ea83690469eb896752e637_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2025-01-11_a9a08c7004ea83690469eb896752e637_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-11_a9a08c7004ea83690469eb896752e637_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2025-01-11_a9a08c7004ea83690469eb896752e637_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2025-01-11_a9a08c7004ea83690469eb896752e637_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0084000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-11_a9a08c7004ea83690469eb896752e637_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{2102CCE8-2A73-466E-AF08-AE5DAC98551A}\WpadDecision = "0"	2025-01-11_a9a08c7004ea83690469eb896752e637_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2025-01-11_a9a08c7004ea83690469eb896752e637_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-11_a9a08c7004ea83690469eb896752e637_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:1704
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2768

C:\Users\Admin\AppData\Local\Temp\2025-01-11_a9a08c7004ea83690469eb896752e637_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2025-01-11_a9a08c7004ea83690469eb896752e637_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:1636

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
5b4c912cce9e090746d1fb352691e021

SHA1
35375ea28b235976f700c7c4b30c01333f67bfd2

SHA256
8cec28b72e32a2b970477fb98a9ce8af1b9b6c214ee3a926ed2343ddcef71402

SHA512
d6c4081ebdb3580706b41b9763842f9cceb3248620b38a4c07cb65b20d5ef8c6c891c3ddffce41e4d428e37b2b0853015f223633dd16d8cc17189f2dc0386149

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Analysis

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