wannacry | 55de8cdae2992242784c363a7a839394b9efaf34203dcca536d23ecc51f2e636

General

Target

2025-01-10_65896e0a8cff5347ff643e9f966380a0_wannacry.exe
Size

3.6MB
MD5

65896e0a8cff5347ff643e9f966380a0
SHA1

f6b278e128f7e7883e50aae7e3abe9ec50e33eea
SHA256

55de8cdae2992242784c363a7a839394b9efaf34203dcca536d23ecc51f2e636
SHA512

1f99e4ddef39b6a75335af815bfa08ad5432037b7d2b1f641e15225c7c1d1c915e8adabdb163ffc6c7730e40b6bebb36fcb20993f4de011277c2f5aa984466cf
SSDEEP

98304:yDqPoBhz1aRwcxi9qMhTKHjL5sx1/+LPX2z8Rj41AjUkHYu+mZlpDNl0EToUUWtZ:yDqPe1Cwcxi9qMhTKHjL5sx1/+LPX2zy

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 (3311) 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
2316	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	2025-01-10_65896e0a8cff5347ff643e9f966380a0_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2025-01-10_65896e0a8cff5347ff643e9f966380a0_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	2025-01-10_65896e0a8cff5347ff643e9f966380a0_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-10_65896e0a8cff5347ff643e9f966380a0_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\fe-51-5f-3b-0a-20	2025-01-10_65896e0a8cff5347ff643e9f966380a0_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3061DCD8-72EE-4B36-B7E8-946967CAB477}\fe-51-5f-3b-0a-20	2025-01-10_65896e0a8cff5347ff643e9f966380a0_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2025-01-10_65896e0a8cff5347ff643e9f966380a0_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2025-01-10_65896e0a8cff5347ff643e9f966380a0_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2025-01-10_65896e0a8cff5347ff643e9f966380a0_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3061DCD8-72EE-4B36-B7E8-946967CAB477}	2025-01-10_65896e0a8cff5347ff643e9f966380a0_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3061DCD8-72EE-4B36-B7E8-946967CAB477}\WpadDecisionReason = "1"	2025-01-10_65896e0a8cff5347ff643e9f966380a0_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3061DCD8-72EE-4B36-B7E8-946967CAB477}\WpadNetworkName = "Network 3"	2025-01-10_65896e0a8cff5347ff643e9f966380a0_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\fe-51-5f-3b-0a-20\WpadDecisionTime = b01f5b8b0963db01	2025-01-10_65896e0a8cff5347ff643e9f966380a0_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\fe-51-5f-3b-0a-20\WpadDecision = "0"	2025-01-10_65896e0a8cff5347ff643e9f966380a0_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2025-01-10_65896e0a8cff5347ff643e9f966380a0_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-10_65896e0a8cff5347ff643e9f966380a0_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2025-01-10_65896e0a8cff5347ff643e9f966380a0_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2025-01-10_65896e0a8cff5347ff643e9f966380a0_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3061DCD8-72EE-4B36-B7E8-946967CAB477}\WpadDecisionTime = b01f5b8b0963db01	2025-01-10_65896e0a8cff5347ff643e9f966380a0_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3061DCD8-72EE-4B36-B7E8-946967CAB477}\WpadDecision = "0"	2025-01-10_65896e0a8cff5347ff643e9f966380a0_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\fe-51-5f-3b-0a-20\WpadDecisionReason = "1"	2025-01-10_65896e0a8cff5347ff643e9f966380a0_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0075000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-10_65896e0a8cff5347ff643e9f966380a0_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-10_65896e0a8cff5347ff643e9f966380a0_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2025-01-10_65896e0a8cff5347ff643e9f966380a0_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2025-01-10_65896e0a8cff5347ff643e9f966380a0_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2025-01-10_65896e0a8cff5347ff643e9f966380a0_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2025-01-10_65896e0a8cff5347ff643e9f966380a0_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2025-01-10_65896e0a8cff5347ff643e9f966380a0_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2025-01-10_65896e0a8cff5347ff643e9f966380a0_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-10_65896e0a8cff5347ff643e9f966380a0_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2792
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2316

C:\Users\Admin\AppData\Local\Temp\2025-01-10_65896e0a8cff5347ff643e9f966380a0_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2025-01-10_65896e0a8cff5347ff643e9f966380a0_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2296

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

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Downloads

C:\Windows\tasksche.exe

Filesize
3.4MB

MD5
830cfa4848df922c2290432e92d24e1c

SHA1
3f5baa6784c9dcc1e4124374132de622fba76dac

SHA256
4e609506e237e95bf3ea5afc496043087c734dec8aca6a444e273e90be593348

SHA512
fabfff0e7ef1637a4688c12e8697e5ad22965d213d8ab603419ea3da640f35e63cae348e23d3a62349fc86c4d0cb52104488956a23517fc93df8e080e526c1b7

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Analysis

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