wannacry | bb88ce32092bae167487213d1aa7d8eee071bb7324faa0da36f7bd08ae3ce77a

General

Target

2024-09-28_adf2cc82dd943eaf15d31722b17a9a96_wannacry.exe
Size

5.0MB
MD5

adf2cc82dd943eaf15d31722b17a9a96
SHA1

bba4fc025fea5db838116128f0209c4ff6471356
SHA256

bb88ce32092bae167487213d1aa7d8eee071bb7324faa0da36f7bd08ae3ce77a
SHA512

20873faeb3401730f58f5fe8a7ee387d4c1acce31a2d18b3697ba9e5db52fcd9af83dc2493a71697f1c3833f1d0cf03f3c6b6560bc01878d0cf8f1f53b67c4dc
SSDEEP

98304:yDqPoBhz1aRxcSUDk36SA+593R8yAVp2H:yDqPe1Cxcxk3ZA+zR8yc4H

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3347) 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
1624	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	2024-09-28_adf2cc82dd943eaf15d31722b17a9a96_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-09-28_adf2cc82dd943eaf15d31722b17a9a96_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	2024-09-28_adf2cc82dd943eaf15d31722b17a9a96_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-28_adf2cc82dd943eaf15d31722b17a9a96_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-09-28_adf2cc82dd943eaf15d31722b17a9a96_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-09-28_adf2cc82dd943eaf15d31722b17a9a96_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{7B4F330F-418D-4F0A-9BA3-DE307D02709F}\WpadDecisionReason = "1"	2024-09-28_adf2cc82dd943eaf15d31722b17a9a96_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{7B4F330F-418D-4F0A-9BA3-DE307D02709F}\WpadDecision = "0"	2024-09-28_adf2cc82dd943eaf15d31722b17a9a96_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-09-28_adf2cc82dd943eaf15d31722b17a9a96_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-28_adf2cc82dd943eaf15d31722b17a9a96_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-09-28_adf2cc82dd943eaf15d31722b17a9a96_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-09-28_adf2cc82dd943eaf15d31722b17a9a96_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\06-53-e1-5b-f7-56\WpadDecisionReason = "1"	2024-09-28_adf2cc82dd943eaf15d31722b17a9a96_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\06-53-e1-5b-f7-56\WpadDecisionTime = e023943c8d11db01	2024-09-28_adf2cc82dd943eaf15d31722b17a9a96_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\06-53-e1-5b-f7-56\WpadDecision = "0"	2024-09-28_adf2cc82dd943eaf15d31722b17a9a96_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-09-28_adf2cc82dd943eaf15d31722b17a9a96_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-28_adf2cc82dd943eaf15d31722b17a9a96_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-09-28_adf2cc82dd943eaf15d31722b17a9a96_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-09-28_adf2cc82dd943eaf15d31722b17a9a96_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{7B4F330F-418D-4F0A-9BA3-DE307D02709F}	2024-09-28_adf2cc82dd943eaf15d31722b17a9a96_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{7B4F330F-418D-4F0A-9BA3-DE307D02709F}\WpadDecisionTime = e023943c8d11db01	2024-09-28_adf2cc82dd943eaf15d31722b17a9a96_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{7B4F330F-418D-4F0A-9BA3-DE307D02709F}\WpadNetworkName = "Network 3"	2024-09-28_adf2cc82dd943eaf15d31722b17a9a96_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\06-53-e1-5b-f7-56	2024-09-28_adf2cc82dd943eaf15d31722b17a9a96_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-09-28_adf2cc82dd943eaf15d31722b17a9a96_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-09-28_adf2cc82dd943eaf15d31722b17a9a96_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-09-28_adf2cc82dd943eaf15d31722b17a9a96_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00a0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-28_adf2cc82dd943eaf15d31722b17a9a96_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{7B4F330F-418D-4F0A-9BA3-DE307D02709F}\06-53-e1-5b-f7-56	2024-09-28_adf2cc82dd943eaf15d31722b17a9a96_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-09-28_adf2cc82dd943eaf15d31722b17a9a96_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-28_adf2cc82dd943eaf15d31722b17a9a96_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2260
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:1624

C:\Users\Admin\AppData\Local\Temp\2024-09-28_adf2cc82dd943eaf15d31722b17a9a96_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-09-28_adf2cc82dd943eaf15d31722b17a9a96_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2108

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
805370d531bdcc1f52da429d669bcae2

SHA1
cd6e3ef5e3819db23eaa8d4a6d22e11cac78b793

SHA256
dfd28f866327baa8e3d2ed43a203e62aeb272154f40822209b207da6b70d0edb

SHA512
82a93173c44ed80ff80e593b768956259c5cdb5e489e51bba9f2a4995db4cc6721851b0e66ec41564d6f3cbad6f7bfcf9b4af752392832b624718c9c7e8ffe4f

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