wannacry | cd53a62c0cd1b74cd87752fa1b654fc4b6fcb82be4b762902b2b176ad81f2e26

General

Target

27a084295b84f57329559ca8caeac6a5_JaffaCakes118.exe
Size

3.6MB
MD5

27a084295b84f57329559ca8caeac6a5
SHA1

3e507a2a1df363a6ec26331583c72e4ebf2d919b
SHA256

cd53a62c0cd1b74cd87752fa1b654fc4b6fcb82be4b762902b2b176ad81f2e26
SHA512

3e9757edfd2a8504c7065abfccb27d2c39fd3b4ff7d4128ded633514906a1d1309234b2c96744f07713f6354509e4c509957eb285336d4f2d825fd7767d46b2f
SSDEEP

24576:2bLgddQhfdmMSirYbcuNUR3W8D0/mk3nZ4Rrq3u7VCy5IxTYbqZcvzkaXnDyPpxv:2nAQqMSPbclm8Dg3UqwCZ0Gc7dXnaXBD

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3243) 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

2732 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
2732	tasksche.exe

Drops file in System32 directory 1 IoCs

Processes:

27a084295b84f57329559ca8caeac6a5_JaffaCakes118.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	27a084295b84f57329559ca8caeac6a5_JaffaCakes118.exe

Drops file in Windows directory 1 IoCs

Processes:

27a084295b84f57329559ca8caeac6a5_JaffaCakes118.exe

description ioc process

File created C:\WINDOWS\tasksche.exe 27a084295b84f57329559ca8caeac6a5_JaffaCakes118.exe

description	ioc	process
File created	C:\WINDOWS\tasksche.exe	27a084295b84f57329559ca8caeac6a5_JaffaCakes118.exe

Modifies data under HKEY_USERS 24 IoCs

Processes:

27a084295b84f57329559ca8caeac6a5_JaffaCakes118.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	27a084295b84f57329559ca8caeac6a5_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{540C3585-0865-4531-B8F5-452684B2F750}\WpadDecision = "0"	27a084295b84f57329559ca8caeac6a5_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{540C3585-0865-4531-B8F5-452684B2F750}\WpadNetworkName = "Network 3"	27a084295b84f57329559ca8caeac6a5_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{540C3585-0865-4531-B8F5-452684B2F750}\c2-45-61-a8-08-76	27a084295b84f57329559ca8caeac6a5_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	27a084295b84f57329559ca8caeac6a5_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	27a084295b84f57329559ca8caeac6a5_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	27a084295b84f57329559ca8caeac6a5_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{540C3585-0865-4531-B8F5-452684B2F750}	27a084295b84f57329559ca8caeac6a5_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\c2-45-61-a8-08-76	27a084295b84f57329559ca8caeac6a5_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\c2-45-61-a8-08-76\WpadDecisionTime = d0a98e60afa1da01	27a084295b84f57329559ca8caeac6a5_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	27a084295b84f57329559ca8caeac6a5_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	27a084295b84f57329559ca8caeac6a5_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00cb000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	27a084295b84f57329559ca8caeac6a5_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	27a084295b84f57329559ca8caeac6a5_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	27a084295b84f57329559ca8caeac6a5_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	27a084295b84f57329559ca8caeac6a5_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{540C3585-0865-4531-B8F5-452684B2F750}\WpadDecisionReason = "1"	27a084295b84f57329559ca8caeac6a5_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\c2-45-61-a8-08-76\WpadDecisionReason = "1"	27a084295b84f57329559ca8caeac6a5_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	27a084295b84f57329559ca8caeac6a5_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	27a084295b84f57329559ca8caeac6a5_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	27a084295b84f57329559ca8caeac6a5_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\c2-45-61-a8-08-76\WpadDecision = "0"	27a084295b84f57329559ca8caeac6a5_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	27a084295b84f57329559ca8caeac6a5_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{540C3585-0865-4531-B8F5-452684B2F750}\WpadDecisionTime = d0a98e60afa1da01	27a084295b84f57329559ca8caeac6a5_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\27a084295b84f57329559ca8caeac6a5_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\27a084295b84f57329559ca8caeac6a5_JaffaCakes118.exe"
1⤵
- Drops file in Windows directory
PID:3012

C:\WINDOWS\tasksche.exe
C:\WINDOWS\tasksche.exe /i
2⤵
- Executes dropped EXE
PID:2732

C:\Users\Admin\AppData\Local\Temp\27a084295b84f57329559ca8caeac6a5_JaffaCakes118.exe
C:\Users\Admin\AppData\Local\Temp\27a084295b84f57329559ca8caeac6a5_JaffaCakes118.exe -m security
1⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
PID:2812

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
0985d63055b99e15f847f9ea6afe6c04

SHA1
a484c69db3f7d26c137f3038cf1b4c2330921c7f

SHA256
0719f3b825c7a33535fa03ffa705a1e32264076fd99c55780fa29261eb32895b

SHA512
35c2acddafd5196ae3a57b510cb361b6cf09385e6cef0b1ca82f877343fc0aa2d53e7582d814a057f7c66380b0f0858c851880637ce61e02ed5d4298bac28f52

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