wannacry | ecc73f2f7a65a80ef14951805739c7f31b6eab21245b64823adf5cdb8fa2cf9a

General

Target

62186952d7ebb8df7124e96b530e0506JaffaCakes118.exe
Size

3.6MB
MD5

62186952d7ebb8df7124e96b530e0506
SHA1

8b37c0307a823ca8abc3774f3426e6af8299fe86
SHA256

ecc73f2f7a65a80ef14951805739c7f31b6eab21245b64823adf5cdb8fa2cf9a
SHA512

b35b745c9bde4f0be4c1e9b8211e64011ffdb7e4a5418084db2059658898477b41c55d583214975dddb7b1d0bdab84d8206723366cfb2b3663a1f8fb8d227471
SSDEEP

49152:XnAQqMSPbcXR2HeKIItNnd+TSqTdX1HkQo6SAAF:XDqPoiIItxdcSUDk36SA2

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3296) 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

2580 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
2580	tasksche.exe

Drops file in System32 directory 1 IoCs

Processes:

62186952d7ebb8df7124e96b530e0506JaffaCakes118.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	62186952d7ebb8df7124e96b530e0506JaffaCakes118.exe

Drops file in Windows directory 1 IoCs

Processes:

62186952d7ebb8df7124e96b530e0506JaffaCakes118.exe

description ioc process

File created C:\WINDOWS\tasksche.exe 62186952d7ebb8df7124e96b530e0506JaffaCakes118.exe

description	ioc	process
File created	C:\WINDOWS\tasksche.exe	62186952d7ebb8df7124e96b530e0506JaffaCakes118.exe

Modifies data under HKEY_USERS 24 IoCs

Processes:

62186952d7ebb8df7124e96b530e0506JaffaCakes118.exe

description	ioc	process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	62186952d7ebb8df7124e96b530e0506JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	62186952d7ebb8df7124e96b530e0506JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00ea000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	62186952d7ebb8df7124e96b530e0506JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{36D5872D-0B61-4612-8A67-EEEFA5893B72}\WpadDecision = "0"	62186952d7ebb8df7124e96b530e0506JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	62186952d7ebb8df7124e96b530e0506JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	62186952d7ebb8df7124e96b530e0506JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	62186952d7ebb8df7124e96b530e0506JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{36D5872D-0B61-4612-8A67-EEEFA5893B72}\WpadDecisionReason = "1"	62186952d7ebb8df7124e96b530e0506JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	62186952d7ebb8df7124e96b530e0506JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	62186952d7ebb8df7124e96b530e0506JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	62186952d7ebb8df7124e96b530e0506JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	62186952d7ebb8df7124e96b530e0506JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\f2-cc-6d-26-38-6d	62186952d7ebb8df7124e96b530e0506JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\f2-cc-6d-26-38-6d\WpadDecisionTime = c058e115a8acda01	62186952d7ebb8df7124e96b530e0506JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\f2-cc-6d-26-38-6d\WpadDecision = "0"	62186952d7ebb8df7124e96b530e0506JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{36D5872D-0B61-4612-8A67-EEEFA5893B72}\f2-cc-6d-26-38-6d	62186952d7ebb8df7124e96b530e0506JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\f2-cc-6d-26-38-6d\WpadDecisionReason = "1"	62186952d7ebb8df7124e96b530e0506JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	62186952d7ebb8df7124e96b530e0506JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	62186952d7ebb8df7124e96b530e0506JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	62186952d7ebb8df7124e96b530e0506JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{36D5872D-0B61-4612-8A67-EEEFA5893B72}\WpadNetworkName = "Network 3"	62186952d7ebb8df7124e96b530e0506JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	62186952d7ebb8df7124e96b530e0506JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{36D5872D-0B61-4612-8A67-EEEFA5893B72}	62186952d7ebb8df7124e96b530e0506JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{36D5872D-0B61-4612-8A67-EEEFA5893B72}\WpadDecisionTime = c058e115a8acda01	62186952d7ebb8df7124e96b530e0506JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\62186952d7ebb8df7124e96b530e0506JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\62186952d7ebb8df7124e96b530e0506JaffaCakes118.exe"
1⤵
- Drops file in Windows directory
PID:2944
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2580

C:\Users\Admin\AppData\Local\Temp\62186952d7ebb8df7124e96b530e0506JaffaCakes118.exe
C:\Users\Admin\AppData\Local\Temp\62186952d7ebb8df7124e96b530e0506JaffaCakes118.exe -m security
1⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
PID:2208

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
25d88771dce7cacb2f1dda37be2753f5

SHA1
44807c9f091418af36404377100e0fc19dfce970

SHA256
6c4488cb06084f54499f5befdfe9578bf27cd39feb5f02209d96181acde99ed0

SHA512
9d166e9aed22f9317e590ebafb82cf8ee2a4282ed2c3a77d7f12b45c721fdf601a968c9a1b53bb75db2fb1ed74b8f2136977117371e53a48bf73898fcb37e5fa

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Analysis

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