wannacry | 2c59fb1f223f5d05460ee74e62fe66e4a13f9e0a6fb45b3da1b6448804e9db44

General

Target

a0e5f06a2bf894bd733b81249f53e504_JaffaCakes118.exe
Size

3.6MB
MD5

a0e5f06a2bf894bd733b81249f53e504
SHA1

06f397e6e1340323dd82763dc2906eb6230b183e
SHA256

2c59fb1f223f5d05460ee74e62fe66e4a13f9e0a6fb45b3da1b6448804e9db44
SHA512

06fb339117c80a66a26d65b33618cd7d04c971e62d5cc2dc69f5993978c778174625a6be45e0c175d5c08cb29cd8512c258f1722c68691b3f5b62b7aecd7a910
SSDEEP

49152:2nAQqMSPbcBVQej/1cOQ77JU+3qxAMEcaEau3R8yAH1plAHI:yDqPoBhz1GU+3+593R8yAVp2HI

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3260) 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

2144 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
2144	tasksche.exe

Drops file in System32 directory 1 IoCs

Processes:

a0e5f06a2bf894bd733b81249f53e504_JaffaCakes118.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	a0e5f06a2bf894bd733b81249f53e504_JaffaCakes118.exe

Drops file in Windows directory 1 IoCs

Processes:

a0e5f06a2bf894bd733b81249f53e504_JaffaCakes118.exe

description ioc process

File created C:\WINDOWS\tasksche.exe a0e5f06a2bf894bd733b81249f53e504_JaffaCakes118.exe

description	ioc	process
File created	C:\WINDOWS\tasksche.exe	a0e5f06a2bf894bd733b81249f53e504_JaffaCakes118.exe

Modifies data under HKEY_USERS 24 IoCs

Processes:

a0e5f06a2bf894bd733b81249f53e504_JaffaCakes118.exe

description	ioc	process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	a0e5f06a2bf894bd733b81249f53e504_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{952085C6-3B3F-45AD-89B3-E2ED9AF60DB9}	a0e5f06a2bf894bd733b81249f53e504_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{952085C6-3B3F-45AD-89B3-E2ED9AF60DB9}\WpadDecisionTime = 7056c3e4cfbcda01	a0e5f06a2bf894bd733b81249f53e504_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\86-a7-bb-0a-8c-28	a0e5f06a2bf894bd733b81249f53e504_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\86-a7-bb-0a-8c-28\WpadDecisionTime = 7056c3e4cfbcda01	a0e5f06a2bf894bd733b81249f53e504_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	a0e5f06a2bf894bd733b81249f53e504_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	a0e5f06a2bf894bd733b81249f53e504_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	a0e5f06a2bf894bd733b81249f53e504_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	a0e5f06a2bf894bd733b81249f53e504_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\86-a7-bb-0a-8c-28\WpadDecisionReason = "1"	a0e5f06a2bf894bd733b81249f53e504_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	a0e5f06a2bf894bd733b81249f53e504_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	a0e5f06a2bf894bd733b81249f53e504_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	a0e5f06a2bf894bd733b81249f53e504_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\86-a7-bb-0a-8c-28\WpadDecision = "0"	a0e5f06a2bf894bd733b81249f53e504_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	a0e5f06a2bf894bd733b81249f53e504_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	a0e5f06a2bf894bd733b81249f53e504_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{952085C6-3B3F-45AD-89B3-E2ED9AF60DB9}\WpadNetworkName = "Network 3"	a0e5f06a2bf894bd733b81249f53e504_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0041000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	a0e5f06a2bf894bd733b81249f53e504_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{952085C6-3B3F-45AD-89B3-E2ED9AF60DB9}\WpadDecisionReason = "1"	a0e5f06a2bf894bd733b81249f53e504_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{952085C6-3B3F-45AD-89B3-E2ED9AF60DB9}\WpadDecision = "0"	a0e5f06a2bf894bd733b81249f53e504_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{952085C6-3B3F-45AD-89B3-E2ED9AF60DB9}\86-a7-bb-0a-8c-28	a0e5f06a2bf894bd733b81249f53e504_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	a0e5f06a2bf894bd733b81249f53e504_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	a0e5f06a2bf894bd733b81249f53e504_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	a0e5f06a2bf894bd733b81249f53e504_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\a0e5f06a2bf894bd733b81249f53e504_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\a0e5f06a2bf894bd733b81249f53e504_JaffaCakes118.exe"
1⤵
- Drops file in Windows directory
PID:1276

C:\WINDOWS\tasksche.exe
C:\WINDOWS\tasksche.exe /i
2⤵
- Executes dropped EXE
PID:2144

C:\Users\Admin\AppData\Local\Temp\a0e5f06a2bf894bd733b81249f53e504_JaffaCakes118.exe
C:\Users\Admin\AppData\Local\Temp\a0e5f06a2bf894bd733b81249f53e504_JaffaCakes118.exe -m security
1⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
PID:3008

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
dace64b71570c57b04092d5be360ac92

SHA1
ce035eab6998a07edaafbf2b7655c629d6918ed6

SHA256
6041931b806727d60c6eb0ac7adfdadc6aa9432bb8e5baf0573f07b054ecf199

SHA512
f26ce7be1a4e4b4a025f10e4fb12a745c7878a7cc4c068d4528ca41aa1ddb55c7929e224e14d83176a7700a8629e118dffbfc4a05f21680803d56cbadbc997ee

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