wannacry | bb9e15db5be383dcab8d0bda6b91d8715f5edee1613288de2230682db688f8c1

General

Target

4c5127ec7ca2e22ef6df7b2a155b4d95_JaffaCakes118.exe
Size

3.6MB
MD5

4c5127ec7ca2e22ef6df7b2a155b4d95
SHA1

b02608398e1ef71e03016c87e0f8eaa73e37f6d7
SHA256

bb9e15db5be383dcab8d0bda6b91d8715f5edee1613288de2230682db688f8c1
SHA512

c4ca4dc8d7fca255ad639c6352475cf9b1d19a52247240ff343eb65a137128693c46863d440ae7c6e7b217021a3771504ddc938c4ac24e90848899e2c4207fd0
SSDEEP

98304:yDqPoBhz1aRxcSUDk36SAEdhvxWa9P50I:yDqPe1Cxcxk3ZAEUadOI

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3159) 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

2668 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
2668	tasksche.exe

Drops file in System32 directory 1 IoCs

Processes:

4c5127ec7ca2e22ef6df7b2a155b4d95_JaffaCakes118.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	4c5127ec7ca2e22ef6df7b2a155b4d95_JaffaCakes118.exe

Drops file in Windows directory 1 IoCs

Processes:

4c5127ec7ca2e22ef6df7b2a155b4d95_JaffaCakes118.exe

description ioc process

File created C:\WINDOWS\tasksche.exe 4c5127ec7ca2e22ef6df7b2a155b4d95_JaffaCakes118.exe

description	ioc	process
File created	C:\WINDOWS\tasksche.exe	4c5127ec7ca2e22ef6df7b2a155b4d95_JaffaCakes118.exe

Modifies data under HKEY_USERS 24 IoCs

Processes:

4c5127ec7ca2e22ef6df7b2a155b4d95_JaffaCakes118.exe

description	ioc	process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{94ABF82B-B9EB-4DA9-BD02-A10312DA8EE7}\8e-44-fa-05-dd-51	4c5127ec7ca2e22ef6df7b2a155b4d95_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	4c5127ec7ca2e22ef6df7b2a155b4d95_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	4c5127ec7ca2e22ef6df7b2a155b4d95_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	4c5127ec7ca2e22ef6df7b2a155b4d95_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	4c5127ec7ca2e22ef6df7b2a155b4d95_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	4c5127ec7ca2e22ef6df7b2a155b4d95_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{94ABF82B-B9EB-4DA9-BD02-A10312DA8EE7}\WpadDecisionTime = c0b85da0b9a7da01	4c5127ec7ca2e22ef6df7b2a155b4d95_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{94ABF82B-B9EB-4DA9-BD02-A10312DA8EE7}\WpadDecision = "0"	4c5127ec7ca2e22ef6df7b2a155b4d95_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\8e-44-fa-05-dd-51\WpadDecisionReason = "1"	4c5127ec7ca2e22ef6df7b2a155b4d95_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	4c5127ec7ca2e22ef6df7b2a155b4d95_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\8e-44-fa-05-dd-51	4c5127ec7ca2e22ef6df7b2a155b4d95_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	4c5127ec7ca2e22ef6df7b2a155b4d95_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	4c5127ec7ca2e22ef6df7b2a155b4d95_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	4c5127ec7ca2e22ef6df7b2a155b4d95_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	4c5127ec7ca2e22ef6df7b2a155b4d95_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0076000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	4c5127ec7ca2e22ef6df7b2a155b4d95_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{94ABF82B-B9EB-4DA9-BD02-A10312DA8EE7}\WpadNetworkName = "Network 3"	4c5127ec7ca2e22ef6df7b2a155b4d95_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	4c5127ec7ca2e22ef6df7b2a155b4d95_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	4c5127ec7ca2e22ef6df7b2a155b4d95_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	4c5127ec7ca2e22ef6df7b2a155b4d95_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{94ABF82B-B9EB-4DA9-BD02-A10312DA8EE7}	4c5127ec7ca2e22ef6df7b2a155b4d95_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{94ABF82B-B9EB-4DA9-BD02-A10312DA8EE7}\WpadDecisionReason = "1"	4c5127ec7ca2e22ef6df7b2a155b4d95_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\8e-44-fa-05-dd-51\WpadDecisionTime = c0b85da0b9a7da01	4c5127ec7ca2e22ef6df7b2a155b4d95_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\8e-44-fa-05-dd-51\WpadDecision = "0"	4c5127ec7ca2e22ef6df7b2a155b4d95_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\4c5127ec7ca2e22ef6df7b2a155b4d95_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\4c5127ec7ca2e22ef6df7b2a155b4d95_JaffaCakes118.exe"
1⤵
- Drops file in Windows directory
PID:2888

C:\WINDOWS\tasksche.exe
C:\WINDOWS\tasksche.exe /i
2⤵
- Executes dropped EXE
PID:2668

C:\Users\Admin\AppData\Local\Temp\4c5127ec7ca2e22ef6df7b2a155b4d95_JaffaCakes118.exe
C:\Users\Admin\AppData\Local\Temp\4c5127ec7ca2e22ef6df7b2a155b4d95_JaffaCakes118.exe -m security
1⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
PID:2948

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
bd6cb00fde4114f8b00fff9378f2bdfe

SHA1
6d6a4abcf4bcf9dd1179e3f65900d7cf118cfba9

SHA256
1e03c6d77c48d1c301538c233b10017bdfccf1a8d81ee3d4b2ddba15a7a23603

SHA512
efe6a0510cdc8f5e532aa4607d80e198e3a88e4b2195a0be6d4736678f769a1879f67618025db2996bb5da22f98afdba5475cff12e74975c4eb9c160cf5d9e02

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