wannacry | d041d1d3fc3f7553e5524a1e8603a2a9d751aa14965811bb29ef35ed1edf9c24

General

Target

c787b6e8cffd395ff3b47b0533225c1f_JaffaCakes118.exe
Size

3.6MB
MD5

c787b6e8cffd395ff3b47b0533225c1f
SHA1

50fee498c71b0a9e194b1797cf6b38c946e9fcee
SHA256

d041d1d3fc3f7553e5524a1e8603a2a9d751aa14965811bb29ef35ed1edf9c24
SHA512

6214cdade00e74bb8d8d2f484bd9dd2b9c17d91c663787ce2a358e352a15d58779eb80a55df6c7b702d0bb8e66a6c554f63e62dc9569840500e8b74e5cc51a5b
SSDEEP

98304:yDqPoBhz1aRxcSUDk36SAEdhvxWa9P593R8yAVp2tI:yDqPe1Cxcxk3ZAEUadzR8yc4tI

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3364) 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

pid	Process
2772	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

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	c787b6e8cffd395ff3b47b0533225c1f_JaffaCakes118.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	c787b6e8cffd395ff3b47b0533225c1f_JaffaCakes118.exe

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c787b6e8cffd395ff3b47b0533225c1f_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c787b6e8cffd395ff3b47b0533225c1f_JaffaCakes118.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	c787b6e8cffd395ff3b47b0533225c1f_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{0735D4E4-72AA-4564-ACFB-47F65046EC22}\WpadDecision = "0"	c787b6e8cffd395ff3b47b0533225c1f_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{0735D4E4-72AA-4564-ACFB-47F65046EC22}\12-cd-99-51-31-c2	c787b6e8cffd395ff3b47b0533225c1f_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\12-cd-99-51-31-c2\WpadDecisionReason = "1"	c787b6e8cffd395ff3b47b0533225c1f_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\12-cd-99-51-31-c2\WpadDecision = "0"	c787b6e8cffd395ff3b47b0533225c1f_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	c787b6e8cffd395ff3b47b0533225c1f_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	c787b6e8cffd395ff3b47b0533225c1f_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	c787b6e8cffd395ff3b47b0533225c1f_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	c787b6e8cffd395ff3b47b0533225c1f_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	c787b6e8cffd395ff3b47b0533225c1f_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	c787b6e8cffd395ff3b47b0533225c1f_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{0735D4E4-72AA-4564-ACFB-47F65046EC22}\WpadDecisionTime = b09f0bd382f9da01	c787b6e8cffd395ff3b47b0533225c1f_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\12-cd-99-51-31-c2	c787b6e8cffd395ff3b47b0533225c1f_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	c787b6e8cffd395ff3b47b0533225c1f_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	c787b6e8cffd395ff3b47b0533225c1f_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	c787b6e8cffd395ff3b47b0533225c1f_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	c787b6e8cffd395ff3b47b0533225c1f_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{0735D4E4-72AA-4564-ACFB-47F65046EC22}	c787b6e8cffd395ff3b47b0533225c1f_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\12-cd-99-51-31-c2\WpadDecisionTime = b09f0bd382f9da01	c787b6e8cffd395ff3b47b0533225c1f_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	c787b6e8cffd395ff3b47b0533225c1f_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	c787b6e8cffd395ff3b47b0533225c1f_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0081000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	c787b6e8cffd395ff3b47b0533225c1f_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{0735D4E4-72AA-4564-ACFB-47F65046EC22}\WpadDecisionReason = "1"	c787b6e8cffd395ff3b47b0533225c1f_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{0735D4E4-72AA-4564-ACFB-47F65046EC22}\WpadNetworkName = "Network 3"	c787b6e8cffd395ff3b47b0533225c1f_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\c787b6e8cffd395ff3b47b0533225c1f_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\c787b6e8cffd395ff3b47b0533225c1f_JaffaCakes118.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2932
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2772

C:\Users\Admin\AppData\Local\Temp\c787b6e8cffd395ff3b47b0533225c1f_JaffaCakes118.exe
C:\Users\Admin\AppData\Local\Temp\c787b6e8cffd395ff3b47b0533225c1f_JaffaCakes118.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2192

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

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\tasksche.exe

Filesize
3.4MB

MD5
9e35b6bd2f637f7175d65a3d20ccd9a8

SHA1
5cf78d8553542eda54c842d29c62d561d2254afc

SHA256
fbf73241ca243d08da6b5ed4f0115b1b754531b9598ffc9081bb1b99756172d3

SHA512
6d2bda825e8787248afc7b44c03739847e9daf2f2ecc2b7994905bcd31079dc6f376f15edd862f8fcd4a0e87a34586a8847e48ce4033663dc9ecbc85e89cc104

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Analysis

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