wannacry | 6c572b6aff7c9f052e68de8d725857884df43849171790022602bd218c4dbcb4

General

Target

2024-12-15_b810a574d573a1f0a65548226326287e_wannacry.exe
Size

5.0MB
MD5

b810a574d573a1f0a65548226326287e
SHA1

6949560b42ee9ea1798724e97a9c7e13554db5ae
SHA256

6c572b6aff7c9f052e68de8d725857884df43849171790022602bd218c4dbcb4
SHA512

5e51acc3bb3ecb0d19ae83d855e3f2e933e32faa63e7fd40f643b6a66d1d91157766ee6efb9ad2b2e3e494634bc44af32fef80128c17ad7286f564de56da663d
SSDEEP

49152:2nAQqMSPbcBVQej/1INRx+TSqTdd1HkQo6SAARdhnvxJM0H9:yDqPoBhz1aRxcSUZk36SAEdhvxWa9

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 (3292) 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
1960	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	2024-12-15_b810a574d573a1f0a65548226326287e_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-12-15_b810a574d573a1f0a65548226326287e_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	2024-12-15_b810a574d573a1f0a65548226326287e_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-12-15_b810a574d573a1f0a65548226326287e_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	2024-12-15_b810a574d573a1f0a65548226326287e_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-12-15_b810a574d573a1f0a65548226326287e_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-12-15_b810a574d573a1f0a65548226326287e_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{4CA1A2C4-E34F-44C9-AA53-274E25C11588}\WpadDecisionTime = c011b9ece34edb01	2024-12-15_b810a574d573a1f0a65548226326287e_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{4CA1A2C4-E34F-44C9-AA53-274E25C11588}\26-a6-f7-50-57-44	2024-12-15_b810a574d573a1f0a65548226326287e_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-12-15_b810a574d573a1f0a65548226326287e_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-12-15_b810a574d573a1f0a65548226326287e_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-12-15_b810a574d573a1f0a65548226326287e_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-12-15_b810a574d573a1f0a65548226326287e_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{4CA1A2C4-E34F-44C9-AA53-274E25C11588}\WpadDecisionReason = "1"	2024-12-15_b810a574d573a1f0a65548226326287e_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\26-a6-f7-50-57-44	2024-12-15_b810a574d573a1f0a65548226326287e_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-12-15_b810a574d573a1f0a65548226326287e_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-12-15_b810a574d573a1f0a65548226326287e_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-12-15_b810a574d573a1f0a65548226326287e_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\26-a6-f7-50-57-44\WpadDecisionReason = "1"	2024-12-15_b810a574d573a1f0a65548226326287e_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-12-15_b810a574d573a1f0a65548226326287e_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-12-15_b810a574d573a1f0a65548226326287e_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00b5000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-12-15_b810a574d573a1f0a65548226326287e_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{4CA1A2C4-E34F-44C9-AA53-274E25C11588}	2024-12-15_b810a574d573a1f0a65548226326287e_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{4CA1A2C4-E34F-44C9-AA53-274E25C11588}\WpadDecision = "0"	2024-12-15_b810a574d573a1f0a65548226326287e_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{4CA1A2C4-E34F-44C9-AA53-274E25C11588}\WpadNetworkName = "Network 3"	2024-12-15_b810a574d573a1f0a65548226326287e_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\26-a6-f7-50-57-44\WpadDecisionTime = c011b9ece34edb01	2024-12-15_b810a574d573a1f0a65548226326287e_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\26-a6-f7-50-57-44\WpadDecision = "0"	2024-12-15_b810a574d573a1f0a65548226326287e_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-12-15_b810a574d573a1f0a65548226326287e_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-12-15_b810a574d573a1f0a65548226326287e_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-15_b810a574d573a1f0a65548226326287e_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2448
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:1960

C:\Users\Admin\AppData\Local\Temp\2024-12-15_b810a574d573a1f0a65548226326287e_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-12-15_b810a574d573a1f0a65548226326287e_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2076

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
20cfa6deb0d408096befde90d27f705f

SHA1
c02d52e59e60296a2577d9233e430011d7684013

SHA256
12c8b2e872e42c5d24f24b3db627bb29de1afdcbb4886c7b6538c38493522b51

SHA512
46bed8b83d48b2d5e2ce9ef35294367837e573ca3582b0b17527a92b44b9a20d967ca7de3282543d0ff45971d27b11cc9c1d1814eeeb661514dbfdbb79d38271

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Analysis

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