wannacry | cc545906881d35bc109b49b9e1f4a4790a5e88780c991a083aad65ad8a068086

General

Target

2024-10-03_4390f83d093b2d28dd8110adbe0ddfd4_wannacry.exe
Size

5.0MB
MD5

4390f83d093b2d28dd8110adbe0ddfd4
SHA1

0a32db3df530d69163214d70c04cc33ee43da0ac
SHA256

cc545906881d35bc109b49b9e1f4a4790a5e88780c991a083aad65ad8a068086
SHA512

7ab7ea9f304f34dd594fe38864ff7d5ddee15e2e621e0b68b399fc05116936f2abc895781acc37a7ee6b01d28239a72a42672e91f915a95a9fff52f2176d5783
SSDEEP

98304:yDqPoBhz1aRxcSUDk36SAEdhvxWa94593X8yAVp2H:yDqPe1Cxcxk3ZAEUaazX8yc4H

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3248) 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
2300	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	2024-10-03_4390f83d093b2d28dd8110adbe0ddfd4_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-10-03_4390f83d093b2d28dd8110adbe0ddfd4_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	2024-10-03_4390f83d093b2d28dd8110adbe0ddfd4_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-03_4390f83d093b2d28dd8110adbe0ddfd4_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{42B21C9F-19A9-428F-8161-A7E3744F218E}\WpadDecision = "0"	2024-10-03_4390f83d093b2d28dd8110adbe0ddfd4_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\72-18-c8-2e-b8-34	2024-10-03_4390f83d093b2d28dd8110adbe0ddfd4_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\72-18-c8-2e-b8-34\WpadDecisionReason = "1"	2024-10-03_4390f83d093b2d28dd8110adbe0ddfd4_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-03_4390f83d093b2d28dd8110adbe0ddfd4_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-03_4390f83d093b2d28dd8110adbe0ddfd4_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-10-03_4390f83d093b2d28dd8110adbe0ddfd4_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-10-03_4390f83d093b2d28dd8110adbe0ddfd4_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-03_4390f83d093b2d28dd8110adbe0ddfd4_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-10-03_4390f83d093b2d28dd8110adbe0ddfd4_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-10-03_4390f83d093b2d28dd8110adbe0ddfd4_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-10-03_4390f83d093b2d28dd8110adbe0ddfd4_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{42B21C9F-19A9-428F-8161-A7E3744F218E}\WpadNetworkName = "Network 3"	2024-10-03_4390f83d093b2d28dd8110adbe0ddfd4_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{42B21C9F-19A9-428F-8161-A7E3744F218E}\72-18-c8-2e-b8-34	2024-10-03_4390f83d093b2d28dd8110adbe0ddfd4_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\72-18-c8-2e-b8-34\WpadDecision = "0"	2024-10-03_4390f83d093b2d28dd8110adbe0ddfd4_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-10-03_4390f83d093b2d28dd8110adbe0ddfd4_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-10-03_4390f83d093b2d28dd8110adbe0ddfd4_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{42B21C9F-19A9-428F-8161-A7E3744F218E}	2024-10-03_4390f83d093b2d28dd8110adbe0ddfd4_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{42B21C9F-19A9-428F-8161-A7E3744F218E}\WpadDecisionTime = 8037324a7a15db01	2024-10-03_4390f83d093b2d28dd8110adbe0ddfd4_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{42B21C9F-19A9-428F-8161-A7E3744F218E}\WpadDecisionReason = "1"	2024-10-03_4390f83d093b2d28dd8110adbe0ddfd4_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\72-18-c8-2e-b8-34\WpadDecisionTime = 8037324a7a15db01	2024-10-03_4390f83d093b2d28dd8110adbe0ddfd4_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-03_4390f83d093b2d28dd8110adbe0ddfd4_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-10-03_4390f83d093b2d28dd8110adbe0ddfd4_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-10-03_4390f83d093b2d28dd8110adbe0ddfd4_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00dd000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-03_4390f83d093b2d28dd8110adbe0ddfd4_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-10-03_4390f83d093b2d28dd8110adbe0ddfd4_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-03_4390f83d093b2d28dd8110adbe0ddfd4_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:1820
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2300

C:\Users\Admin\AppData\Local\Temp\2024-10-03_4390f83d093b2d28dd8110adbe0ddfd4_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-10-03_4390f83d093b2d28dd8110adbe0ddfd4_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2284

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
70e23e372b6f077d4e1e89f5c08418a6

SHA1
83d826f3abb42479378382e4805b8a5e42454814

SHA256
bc0e6e22a794b1b500e3d5d37b7ee0c68d1844d6c9f54126336ed6af62f70260

SHA512
22c7291e2742eb3d99552b62d2a08021ab9d2b08b42d52d480753ae31f25a4de91e4511e140d7e6e126ce9f4bf9fc4782933cc94aab8135c4a783937cf9a9787

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