wannacry | 2c2f428aad3045213974f0847a6ed750e92a453e50298725e4a54a8d85a64615

General

Target

2024-10-12_53f2593aa6e7740ae3806e3a0c331efd_wannacry.exe
Size

3.6MB
MD5

53f2593aa6e7740ae3806e3a0c331efd
SHA1

4e3eb4671ef74d0a768fd3101662e065b069bd22
SHA256

2c2f428aad3045213974f0847a6ed750e92a453e50298725e4a54a8d85a64615
SHA512

f76e0b9652b6a0c853b5062d569da534ff882e462f8a584ffea1a467f7b038d13ab2c155d2e7f6e4d0f77e853d304b7ecaf37cf70b74dfb49ad5763813ed86ab
SSDEEP

49152:2nAQqMSPbcBVQjSAARdhnvxJM0H9PAMEcaEau3R8yAH1plAmy:yDqPoBcSAEdhvxWa9P593R8yAVp2

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3278) 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
2748	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	2024-10-12_53f2593aa6e7740ae3806e3a0c331efd_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-10-12_53f2593aa6e7740ae3806e3a0c331efd_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	2024-10-12_53f2593aa6e7740ae3806e3a0c331efd_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-12_53f2593aa6e7740ae3806e3a0c331efd_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3AC6417B-40AA-438B-B999-F0987870F09D}\WpadDecisionTime = e0cfff7f591cdb01	2024-10-12_53f2593aa6e7740ae3806e3a0c331efd_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3AC6417B-40AA-438B-B999-F0987870F09D}\WpadNetworkName = "Network 3"	2024-10-12_53f2593aa6e7740ae3806e3a0c331efd_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\26-98-ec-9e-e0-86	2024-10-12_53f2593aa6e7740ae3806e3a0c331efd_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\26-98-ec-9e-e0-86\WpadDecision = "0"	2024-10-12_53f2593aa6e7740ae3806e3a0c331efd_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-10-12_53f2593aa6e7740ae3806e3a0c331efd_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_53f2593aa6e7740ae3806e3a0c331efd_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-10-12_53f2593aa6e7740ae3806e3a0c331efd_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-10-12_53f2593aa6e7740ae3806e3a0c331efd_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00e4000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_53f2593aa6e7740ae3806e3a0c331efd_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\26-98-ec-9e-e0-86\WpadDecisionTime = e0cfff7f591cdb01	2024-10-12_53f2593aa6e7740ae3806e3a0c331efd_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-12_53f2593aa6e7740ae3806e3a0c331efd_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-10-12_53f2593aa6e7740ae3806e3a0c331efd_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-12_53f2593aa6e7740ae3806e3a0c331efd_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-10-12_53f2593aa6e7740ae3806e3a0c331efd_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3AC6417B-40AA-438B-B999-F0987870F09D}\WpadDecisionReason = "1"	2024-10-12_53f2593aa6e7740ae3806e3a0c331efd_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3AC6417B-40AA-438B-B999-F0987870F09D}\26-98-ec-9e-e0-86	2024-10-12_53f2593aa6e7740ae3806e3a0c331efd_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\26-98-ec-9e-e0-86\WpadDecisionReason = "1"	2024-10-12_53f2593aa6e7740ae3806e3a0c331efd_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-10-12_53f2593aa6e7740ae3806e3a0c331efd_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-10-12_53f2593aa6e7740ae3806e3a0c331efd_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-10-12_53f2593aa6e7740ae3806e3a0c331efd_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3AC6417B-40AA-438B-B999-F0987870F09D}	2024-10-12_53f2593aa6e7740ae3806e3a0c331efd_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_53f2593aa6e7740ae3806e3a0c331efd_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-10-12_53f2593aa6e7740ae3806e3a0c331efd_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3AC6417B-40AA-438B-B999-F0987870F09D}\WpadDecision = "0"	2024-10-12_53f2593aa6e7740ae3806e3a0c331efd_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-10-12_53f2593aa6e7740ae3806e3a0c331efd_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-12_53f2593aa6e7740ae3806e3a0c331efd_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:988
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2748

C:\Users\Admin\AppData\Local\Temp\2024-10-12_53f2593aa6e7740ae3806e3a0c331efd_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-10-12_53f2593aa6e7740ae3806e3a0c331efd_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2924

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
ef38a9e23821ae33d1c42f02435f3f09

SHA1
c3abc72920155ad6f0fe6e61454b93f5498e4a68

SHA256
52730fd39601c37c538c45b546b93aaa85754ffd95d713c36e29227b561e109a

SHA512
8308d042ff7cac6f7ad49ead1cbcc672049df34d1dab06a213c9a7a8e307b45aeb869acb8e846fc879ebd97f01df5ff26844ff9016313566047dbbca37e318cd

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Analysis

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