wannacry | 3b984e763c064d7efce2b778376069d036155bcadcb0820746f7a3ab92dbe290

General

Target

01ee319483cddc7d75814ee50c144008_JaffaCakes118.exe
Size

3.6MB
MD5

01ee319483cddc7d75814ee50c144008
SHA1

c876f739f87ce54dd0a6251f3acc29ee297ecd80
SHA256

3b984e763c064d7efce2b778376069d036155bcadcb0820746f7a3ab92dbe290
SHA512

7c359199122b91b8d759d0cfb9355d0a38517d0c5b0a0dc655974a75fba11eb1040ae30f26421a0fd3ad91b43b9efa7284cb3bed563cb6d29f284cdb8bc86240
SSDEEP

98304:yDqPoBhz1aRxcSULFFKOAwdhvxWa9P593R8yAVp2HI:yDqPe1CxcBFFKOAwUadzR8yc4HI

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3254) 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

2572 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
2572	tasksche.exe

Drops file in System32 directory 1 IoCs

Processes:

01ee319483cddc7d75814ee50c144008_JaffaCakes118.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	01ee319483cddc7d75814ee50c144008_JaffaCakes118.exe

Drops file in Windows directory 1 IoCs

Processes:

01ee319483cddc7d75814ee50c144008_JaffaCakes118.exe

description ioc process

File created C:\WINDOWS\tasksche.exe 01ee319483cddc7d75814ee50c144008_JaffaCakes118.exe

description	ioc	process
File created	C:\WINDOWS\tasksche.exe	01ee319483cddc7d75814ee50c144008_JaffaCakes118.exe

Modifies data under HKEY_USERS 24 IoCs

Processes:

01ee319483cddc7d75814ee50c144008_JaffaCakes118.exe

description	ioc	process
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0111000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	01ee319483cddc7d75814ee50c144008_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\96-aa-ab-9a-d2-88\WpadDecisionTime = c0c1cb643398da01	01ee319483cddc7d75814ee50c144008_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\96-aa-ab-9a-d2-88\WpadDecision = "0"	01ee319483cddc7d75814ee50c144008_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	01ee319483cddc7d75814ee50c144008_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	01ee319483cddc7d75814ee50c144008_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	01ee319483cddc7d75814ee50c144008_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	01ee319483cddc7d75814ee50c144008_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	01ee319483cddc7d75814ee50c144008_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{521FDE22-5FAA-410F-960E-A03AE1A35A32}	01ee319483cddc7d75814ee50c144008_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{521FDE22-5FAA-410F-960E-A03AE1A35A32}\WpadDecisionReason = "1"	01ee319483cddc7d75814ee50c144008_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	01ee319483cddc7d75814ee50c144008_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	01ee319483cddc7d75814ee50c144008_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	01ee319483cddc7d75814ee50c144008_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{521FDE22-5FAA-410F-960E-A03AE1A35A32}\WpadDecision = "0"	01ee319483cddc7d75814ee50c144008_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\96-aa-ab-9a-d2-88\WpadDecisionReason = "1"	01ee319483cddc7d75814ee50c144008_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	01ee319483cddc7d75814ee50c144008_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	01ee319483cddc7d75814ee50c144008_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{521FDE22-5FAA-410F-960E-A03AE1A35A32}\WpadDecisionTime = c0c1cb643398da01	01ee319483cddc7d75814ee50c144008_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{521FDE22-5FAA-410F-960E-A03AE1A35A32}\WpadNetworkName = "Network 3"	01ee319483cddc7d75814ee50c144008_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\96-aa-ab-9a-d2-88	01ee319483cddc7d75814ee50c144008_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{521FDE22-5FAA-410F-960E-A03AE1A35A32}\96-aa-ab-9a-d2-88	01ee319483cddc7d75814ee50c144008_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	01ee319483cddc7d75814ee50c144008_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	01ee319483cddc7d75814ee50c144008_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	01ee319483cddc7d75814ee50c144008_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\01ee319483cddc7d75814ee50c144008_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\01ee319483cddc7d75814ee50c144008_JaffaCakes118.exe"
1⤵
- Drops file in Windows directory
PID:1676

C:\WINDOWS\tasksche.exe
C:\WINDOWS\tasksche.exe /i
2⤵
- Executes dropped EXE
PID:2572

C:\Users\Admin\AppData\Local\Temp\01ee319483cddc7d75814ee50c144008_JaffaCakes118.exe
C:\Users\Admin\AppData\Local\Temp\01ee319483cddc7d75814ee50c144008_JaffaCakes118.exe -m security
1⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
PID:2176

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
c5d9d55a0083eb4fccdd65e4ace67346

SHA1
7f0e672a618dbe69db0e72cede4038a6a03fdfb2

SHA256
ed81ea35a65be2c64210eee6d5b5c1615bd8ac72196a4606551a6c5abc4d19c6

SHA512
57c8bc837fd202709564ef451de3280fd43e3b8447da0a9b23f9dca9eabd568a2493f2491065f3da0b136b8eaced563ff87c1c78fdf17e636689be694f1073f2

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