wannacry | 9412e2db885e27ad8a746a1d78b2584dfdace249736db136f94f1106bb136341

General

Target

121cce1e6b600df33718850b67a157b0_JaffaCakes118.exe
Size

3.6MB
MD5

121cce1e6b600df33718850b67a157b0
SHA1

7c7802a3b6c8287c0f9c6d781ebbf966f40e71fc
SHA256

9412e2db885e27ad8a746a1d78b2584dfdace249736db136f94f1106bb136341
SHA512

fa5c3e7fab2e93305cd7a8d9184f09847ddbd11d5fed764e01e27bf37923a2a9ee6ee6f97c001969e0ee770537a7c9bd2c5736942216bfcc255a9a7c65bd157e
SSDEEP

98304:yDqPoBhz1aRxcSUDk36SAEdhvxWa9P593RKzl6WG4:yDqPe1Cxcxk3ZAEUadzRSXG4

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3133) 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

Processes:

tasksche.exe

pid process

2588 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

pid	process
2588	tasksche.exe

Drops file in System32 directory 1 IoCs

Processes:

121cce1e6b600df33718850b67a157b0_JaffaCakes118.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	121cce1e6b600df33718850b67a157b0_JaffaCakes118.exe

Drops file in Windows directory 1 IoCs

Processes:

121cce1e6b600df33718850b67a157b0_JaffaCakes118.exe

description ioc process

File created C:\WINDOWS\tasksche.exe 121cce1e6b600df33718850b67a157b0_JaffaCakes118.exe

description	ioc	process
File created	C:\WINDOWS\tasksche.exe	121cce1e6b600df33718850b67a157b0_JaffaCakes118.exe

Modifies data under HKEY_USERS 24 IoCs

Processes:

121cce1e6b600df33718850b67a157b0_JaffaCakes118.exe

description	ioc	process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	121cce1e6b600df33718850b67a157b0_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	121cce1e6b600df33718850b67a157b0_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	121cce1e6b600df33718850b67a157b0_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	121cce1e6b600df33718850b67a157b0_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00f6000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	121cce1e6b600df33718850b67a157b0_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{5606FAB3-C5C1-4190-BADE-BF3FBCCD10FF}\WpadDecisionReason = "1"	121cce1e6b600df33718850b67a157b0_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\9a-eb-61-f9-8d-96	121cce1e6b600df33718850b67a157b0_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\9a-eb-61-f9-8d-96\WpadDecisionReason = "1"	121cce1e6b600df33718850b67a157b0_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\9a-eb-61-f9-8d-96\WpadDecisionTime = 805acfcb059eda01	121cce1e6b600df33718850b67a157b0_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	121cce1e6b600df33718850b67a157b0_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	121cce1e6b600df33718850b67a157b0_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	121cce1e6b600df33718850b67a157b0_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	121cce1e6b600df33718850b67a157b0_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	121cce1e6b600df33718850b67a157b0_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{5606FAB3-C5C1-4190-BADE-BF3FBCCD10FF}	121cce1e6b600df33718850b67a157b0_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{5606FAB3-C5C1-4190-BADE-BF3FBCCD10FF}\WpadDecisionTime = 805acfcb059eda01	121cce1e6b600df33718850b67a157b0_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{5606FAB3-C5C1-4190-BADE-BF3FBCCD10FF}\9a-eb-61-f9-8d-96	121cce1e6b600df33718850b67a157b0_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	121cce1e6b600df33718850b67a157b0_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	121cce1e6b600df33718850b67a157b0_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{5606FAB3-C5C1-4190-BADE-BF3FBCCD10FF}\WpadDecision = "0"	121cce1e6b600df33718850b67a157b0_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{5606FAB3-C5C1-4190-BADE-BF3FBCCD10FF}\WpadNetworkName = "Network 3"	121cce1e6b600df33718850b67a157b0_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	121cce1e6b600df33718850b67a157b0_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	121cce1e6b600df33718850b67a157b0_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\9a-eb-61-f9-8d-96\WpadDecision = "0"	121cce1e6b600df33718850b67a157b0_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\121cce1e6b600df33718850b67a157b0_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\121cce1e6b600df33718850b67a157b0_JaffaCakes118.exe"
1⤵
- Drops file in Windows directory
PID:2932

C:\WINDOWS\tasksche.exe
C:\WINDOWS\tasksche.exe /i
2⤵
- Executes dropped EXE
PID:2588

C:\Users\Admin\AppData\Local\Temp\121cce1e6b600df33718850b67a157b0_JaffaCakes118.exe
C:\Users\Admin\AppData\Local\Temp\121cce1e6b600df33718850b67a157b0_JaffaCakes118.exe -m security
1⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
PID:2216

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\tasksche.exe
Filesize
3.4MB

MD5
7eed22703397f01e61a8c4dfd33e162d

SHA1
7ea7685dddb71449c0029050fdf80d16ee89e2b4

SHA256
3a5ba471dd719a4bacec4f4c0ff8ecf9647bbce3bad2e148c86318f6bc5a9f43

SHA512
59db90bc185b85385092f0a91a05c13838df4f16e3b350de91de4b99366d860bbaa0049bc3ba501d7e4da27c5b90d6a196e75bca3c90341b35ade274b66d14f0

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