wannacry | ea7c389d70c92a52ef6c6e6be13bf3b7cd0c0862d2fc1928f52cdc7b9f0a2f40

General

Target

ea7c389d70c92a52ef6c6e6be13bf3b7cd0c0862d2fc1928f52cdc7b9f0a2f40N.exe
Size

3.6MB
MD5

e5c2a69fb7d0534f11e5278f98cfb420
SHA1

4855bf08db7b937a61bd85ed225b08f0497c2e1e
SHA256

ea7c389d70c92a52ef6c6e6be13bf3b7cd0c0862d2fc1928f52cdc7b9f0a2f40
SHA512

a332a406c548f5f9deff58fa26b0a3ab1d7da3b9cd6eb5ded160bbfbec128eac02afb7a64a5895411ec0ade6e7edc5f953ae76894099cf66b48145efd20380f2
SSDEEP

98304:XDqPoBhzyk36SAEdhvxWa9P593R8yAVp2HI:XDqPeyk3ZAEUadzR8yc4HI

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Wannacry family
wannacry
Contacts a large (2087) 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
2728	tasksche.exe

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	ea7c389d70c92a52ef6c6e6be13bf3b7cd0c0862d2fc1928f52cdc7b9f0a2f40N.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	ea7c389d70c92a52ef6c6e6be13bf3b7cd0c0862d2fc1928f52cdc7b9f0a2f40N.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	ea7c389d70c92a52ef6c6e6be13bf3b7cd0c0862d2fc1928f52cdc7b9f0a2f40N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ea7c389d70c92a52ef6c6e6be13bf3b7cd0c0862d2fc1928f52cdc7b9f0a2f40N.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	ea7c389d70c92a52ef6c6e6be13bf3b7cd0c0862d2fc1928f52cdc7b9f0a2f40N.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	ea7c389d70c92a52ef6c6e6be13bf3b7cd0c0862d2fc1928f52cdc7b9f0a2f40N.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	ea7c389d70c92a52ef6c6e6be13bf3b7cd0c0862d2fc1928f52cdc7b9f0a2f40N.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	ea7c389d70c92a52ef6c6e6be13bf3b7cd0c0862d2fc1928f52cdc7b9f0a2f40N.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00cd000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	ea7c389d70c92a52ef6c6e6be13bf3b7cd0c0862d2fc1928f52cdc7b9f0a2f40N.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{F64B7032-4C2B-4024-918D-2E8A3B0AC202}\e2-68-bb-bc-b4-80	ea7c389d70c92a52ef6c6e6be13bf3b7cd0c0862d2fc1928f52cdc7b9f0a2f40N.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\e2-68-bb-bc-b4-80\WpadDecision = "0"	ea7c389d70c92a52ef6c6e6be13bf3b7cd0c0862d2fc1928f52cdc7b9f0a2f40N.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	ea7c389d70c92a52ef6c6e6be13bf3b7cd0c0862d2fc1928f52cdc7b9f0a2f40N.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	ea7c389d70c92a52ef6c6e6be13bf3b7cd0c0862d2fc1928f52cdc7b9f0a2f40N.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	ea7c389d70c92a52ef6c6e6be13bf3b7cd0c0862d2fc1928f52cdc7b9f0a2f40N.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	ea7c389d70c92a52ef6c6e6be13bf3b7cd0c0862d2fc1928f52cdc7b9f0a2f40N.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	ea7c389d70c92a52ef6c6e6be13bf3b7cd0c0862d2fc1928f52cdc7b9f0a2f40N.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{F64B7032-4C2B-4024-918D-2E8A3B0AC202}	ea7c389d70c92a52ef6c6e6be13bf3b7cd0c0862d2fc1928f52cdc7b9f0a2f40N.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{F64B7032-4C2B-4024-918D-2E8A3B0AC202}\WpadDecisionTime = d0b1c053626bdb01	ea7c389d70c92a52ef6c6e6be13bf3b7cd0c0862d2fc1928f52cdc7b9f0a2f40N.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{F64B7032-4C2B-4024-918D-2E8A3B0AC202}\WpadNetworkName = "Network 3"	ea7c389d70c92a52ef6c6e6be13bf3b7cd0c0862d2fc1928f52cdc7b9f0a2f40N.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	ea7c389d70c92a52ef6c6e6be13bf3b7cd0c0862d2fc1928f52cdc7b9f0a2f40N.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	ea7c389d70c92a52ef6c6e6be13bf3b7cd0c0862d2fc1928f52cdc7b9f0a2f40N.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\e2-68-bb-bc-b4-80\WpadDecisionReason = "1"	ea7c389d70c92a52ef6c6e6be13bf3b7cd0c0862d2fc1928f52cdc7b9f0a2f40N.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	ea7c389d70c92a52ef6c6e6be13bf3b7cd0c0862d2fc1928f52cdc7b9f0a2f40N.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	ea7c389d70c92a52ef6c6e6be13bf3b7cd0c0862d2fc1928f52cdc7b9f0a2f40N.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{F64B7032-4C2B-4024-918D-2E8A3B0AC202}\WpadDecisionReason = "1"	ea7c389d70c92a52ef6c6e6be13bf3b7cd0c0862d2fc1928f52cdc7b9f0a2f40N.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{F64B7032-4C2B-4024-918D-2E8A3B0AC202}\WpadDecision = "0"	ea7c389d70c92a52ef6c6e6be13bf3b7cd0c0862d2fc1928f52cdc7b9f0a2f40N.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\e2-68-bb-bc-b4-80	ea7c389d70c92a52ef6c6e6be13bf3b7cd0c0862d2fc1928f52cdc7b9f0a2f40N.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\e2-68-bb-bc-b4-80\WpadDecisionTime = d0b1c053626bdb01	ea7c389d70c92a52ef6c6e6be13bf3b7cd0c0862d2fc1928f52cdc7b9f0a2f40N.exe

C:\Users\Admin\AppData\Local\Temp\ea7c389d70c92a52ef6c6e6be13bf3b7cd0c0862d2fc1928f52cdc7b9f0a2f40N.exe
"C:\Users\Admin\AppData\Local\Temp\ea7c389d70c92a52ef6c6e6be13bf3b7cd0c0862d2fc1928f52cdc7b9f0a2f40N.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2120
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2728

C:\Users\Admin\AppData\Local\Temp\ea7c389d70c92a52ef6c6e6be13bf3b7cd0c0862d2fc1928f52cdc7b9f0a2f40N.exe
C:\Users\Admin\AppData\Local\Temp\ea7c389d70c92a52ef6c6e6be13bf3b7cd0c0862d2fc1928f52cdc7b9f0a2f40N.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2256

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Network Service Discovery

1

T1046

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\tasksche.exe

Filesize
3.4MB

MD5
a556cc99d7a52801e97a0f3c02d61f87

SHA1
2c2a8ab0adddc307eb2cc35e62dc1496794d3942

SHA256
c157dacd4ea2a1c46494a4bbc8d6835de32d6cf9577a4b0206d9aa5e3c95ed63

SHA512
336ec1d020451f426a04aaec2af51c1e455a174d0f400e9c487f9f75314757f974daea360dd2076a49c0c0f21596626902395ad88766e8c53de396938c2ad397

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