wannacry | a0476451426bac54f352374f3cd0b6ea558cfbb93c294328d9f01511fc1fe822

General

Target

efc0124f3f46526da21abb930b6ac4df_JaffaCakes118.exe
Size

3.6MB
MD5

efc0124f3f46526da21abb930b6ac4df
SHA1

17cf310ec2d68b74dc0d4db332e1f11c00a79882
SHA256

a0476451426bac54f352374f3cd0b6ea558cfbb93c294328d9f01511fc1fe822
SHA512

32405acf16b460fddca7a8404bed5aa1207853e6705b1d7bc5e5b48c9327749ca3a44f68f85199a7a66930b1013333dcf2cec762115dfecf7ac6f3888c6d27da
SSDEEP

49152:2nAQqMSPbcBVQej/1HvxJM0H9PAMEcaEaue5c/bXZROAxf:yDqPoBhz1PxWa9P59Uc/Jf

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3346) 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
2720	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	efc0124f3f46526da21abb930b6ac4df_JaffaCakes118.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	efc0124f3f46526da21abb930b6ac4df_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	efc0124f3f46526da21abb930b6ac4df_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	efc0124f3f46526da21abb930b6ac4df_JaffaCakes118.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	efc0124f3f46526da21abb930b6ac4df_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	efc0124f3f46526da21abb930b6ac4df_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	efc0124f3f46526da21abb930b6ac4df_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	efc0124f3f46526da21abb930b6ac4df_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	efc0124f3f46526da21abb930b6ac4df_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\72-d9-e7-39-62-24	efc0124f3f46526da21abb930b6ac4df_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	efc0124f3f46526da21abb930b6ac4df_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	efc0124f3f46526da21abb930b6ac4df_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	efc0124f3f46526da21abb930b6ac4df_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{95003F8B-1B5B-4681-A047-222F0310ECE9}\WpadDecision = "0"	efc0124f3f46526da21abb930b6ac4df_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\72-d9-e7-39-62-24\WpadDecisionReason = "1"	efc0124f3f46526da21abb930b6ac4df_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\72-d9-e7-39-62-24\WpadDecision = "0"	efc0124f3f46526da21abb930b6ac4df_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\72-d9-e7-39-62-24\WpadDecisionTime = 2030180e1e0cdb01	efc0124f3f46526da21abb930b6ac4df_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	efc0124f3f46526da21abb930b6ac4df_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	efc0124f3f46526da21abb930b6ac4df_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	efc0124f3f46526da21abb930b6ac4df_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	efc0124f3f46526da21abb930b6ac4df_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00e1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	efc0124f3f46526da21abb930b6ac4df_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{95003F8B-1B5B-4681-A047-222F0310ECE9}\WpadDecisionReason = "1"	efc0124f3f46526da21abb930b6ac4df_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{95003F8B-1B5B-4681-A047-222F0310ECE9}\WpadNetworkName = "Network 3"	efc0124f3f46526da21abb930b6ac4df_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	efc0124f3f46526da21abb930b6ac4df_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{95003F8B-1B5B-4681-A047-222F0310ECE9}	efc0124f3f46526da21abb930b6ac4df_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{95003F8B-1B5B-4681-A047-222F0310ECE9}\WpadDecisionTime = 2030180e1e0cdb01	efc0124f3f46526da21abb930b6ac4df_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{95003F8B-1B5B-4681-A047-222F0310ECE9}\72-d9-e7-39-62-24	efc0124f3f46526da21abb930b6ac4df_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\efc0124f3f46526da21abb930b6ac4df_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\efc0124f3f46526da21abb930b6ac4df_JaffaCakes118.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2920
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2720

C:\Users\Admin\AppData\Local\Temp\efc0124f3f46526da21abb930b6ac4df_JaffaCakes118.exe
C:\Users\Admin\AppData\Local\Temp\efc0124f3f46526da21abb930b6ac4df_JaffaCakes118.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2748

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
cfe20946191f8dece2ea51fec2deb1fb

SHA1
eee240719f944485ee2a74b26cb8cd845a6957e6

SHA256
fde815968231c37b1387d28cfce7281bea11cf077c0f3f60513eea33e648eee1

SHA512
e767ec99f29d0cf9196710d0ec2b4383f79f71afbe2f1d09b2a63c362d78c08d7925d0c9badb92d2ed9910ed5a68885ebc67bf4a3e1de0af421cb2655da86640

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