wannacry | cdeb5b8d9d85085c2458674e90a545e3f3fe0a8c83b29b105393e20ea466c00d

General

Target

202409152222cb3a0e552fbb61c9c3b39250369cwannacry.exe
Size

5.0MB
MD5

2222cb3a0e552fbb61c9c3b39250369c
SHA1

d75b257dcfd8f5e503507b60b68293ae5f46859f
SHA256

cdeb5b8d9d85085c2458674e90a545e3f3fe0a8c83b29b105393e20ea466c00d
SHA512

97f71534d62b528cdd42ce8962d2c6424f0e3e53758a112f326bf081462901706b6a816170cea29768523ec0d6abbbf31497d7092dd59cab061812365e346a90
SSDEEP

12288:GvbLgPlu+QhMbaIMu7L5NVErCA4z2g6rTcbckPU82900Ve7zw+K+DHeQYSUjEXFr:2bLgddQhfdmMSirYbcMNgef0QeQjG

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3099) 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
2780	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	202409152222cb3a0e552fbb61c9c3b39250369cwannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	202409152222cb3a0e552fbb61c9c3b39250369cwannacry.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	202409152222cb3a0e552fbb61c9c3b39250369cwannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	202409152222cb3a0e552fbb61c9c3b39250369cwannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	202409152222cb3a0e552fbb61c9c3b39250369cwannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	202409152222cb3a0e552fbb61c9c3b39250369cwannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{6D88FA27-30B8-44A0-B262-07A4EE938D4F}\WpadDecisionTime = 901466ba6f07db01	202409152222cb3a0e552fbb61c9c3b39250369cwannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	202409152222cb3a0e552fbb61c9c3b39250369cwannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	202409152222cb3a0e552fbb61c9c3b39250369cwannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	202409152222cb3a0e552fbb61c9c3b39250369cwannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	202409152222cb3a0e552fbb61c9c3b39250369cwannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{6D88FA27-30B8-44A0-B262-07A4EE938D4F}\WpadDecisionReason = "1"	202409152222cb3a0e552fbb61c9c3b39250369cwannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{6D88FA27-30B8-44A0-B262-07A4EE938D4F}\WpadDecision = "0"	202409152222cb3a0e552fbb61c9c3b39250369cwannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{6D88FA27-30B8-44A0-B262-07A4EE938D4F}\WpadNetworkName = "Network 3"	202409152222cb3a0e552fbb61c9c3b39250369cwannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\8e-76-61-e5-f2-b0\WpadDecision = "0"	202409152222cb3a0e552fbb61c9c3b39250369cwannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	202409152222cb3a0e552fbb61c9c3b39250369cwannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	202409152222cb3a0e552fbb61c9c3b39250369cwannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	202409152222cb3a0e552fbb61c9c3b39250369cwannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	202409152222cb3a0e552fbb61c9c3b39250369cwannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{6D88FA27-30B8-44A0-B262-07A4EE938D4F}	202409152222cb3a0e552fbb61c9c3b39250369cwannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\8e-76-61-e5-f2-b0\WpadDecisionTime = 901466ba6f07db01	202409152222cb3a0e552fbb61c9c3b39250369cwannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	202409152222cb3a0e552fbb61c9c3b39250369cwannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	202409152222cb3a0e552fbb61c9c3b39250369cwannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00c4000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	202409152222cb3a0e552fbb61c9c3b39250369cwannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\8e-76-61-e5-f2-b0	202409152222cb3a0e552fbb61c9c3b39250369cwannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{6D88FA27-30B8-44A0-B262-07A4EE938D4F}\8e-76-61-e5-f2-b0	202409152222cb3a0e552fbb61c9c3b39250369cwannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\8e-76-61-e5-f2-b0\WpadDecisionReason = "1"	202409152222cb3a0e552fbb61c9c3b39250369cwannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	202409152222cb3a0e552fbb61c9c3b39250369cwannacry.exe

C:\Users\Admin\AppData\Local\Temp\202409152222cb3a0e552fbb61c9c3b39250369cwannacry.exe
"C:\Users\Admin\AppData\Local\Temp\202409152222cb3a0e552fbb61c9c3b39250369cwannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2960
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2780

C:\Users\Admin\AppData\Local\Temp\202409152222cb3a0e552fbb61c9c3b39250369cwannacry.exe
C:\Users\Admin\AppData\Local\Temp\202409152222cb3a0e552fbb61c9c3b39250369cwannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2852

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
02b1e6706437e74f6194fd3629b5e91e

SHA1
bc99a43c5693a9c328da138cf7aba744cba2c21c

SHA256
15f1461a48644889ea14961de6d5276024a36c34b957496b00f2451d856cdfb3

SHA512
d50499e1ac060835d7d9a488a35aac75dd1035b363480e79f94ec020ec046783be7e177eef769e71e3b519b7969600981723a18bf2c2cc12ab6b67d7ffbc3e1d

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