wannacry | cd1e83c4c9993b27a9fa33b75fe30252add68b23a384beb47d3d413acda83941

General

Target

202409297e45c6698eaf11b979809937693bf542wannacry.exe
Size

5.0MB
MD5

7e45c6698eaf11b979809937693bf542
SHA1

66f59eb554178333fc1ad45b139e5144bf0e5216
SHA256

cd1e83c4c9993b27a9fa33b75fe30252add68b23a384beb47d3d413acda83941
SHA512

4735abc301ea6564d3e946b5fe96608028ac942d75003f4e09b8e1c7ff551187eb6f851ea4ecf8f6c1a224d131ca2ade02f79fc3c6d3d11afda73e5d4aa5a22f
SSDEEP

98304:XDqPoBtaRxcSUDk36SAEdhvxWa9P593R8yAVp2H:XDqPICxcxk3ZAEUadzR8yc4H

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3329) 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
1168	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	202409297e45c6698eaf11b979809937693bf542wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	202409297e45c6698eaf11b979809937693bf542wannacry.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	202409297e45c6698eaf11b979809937693bf542wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	202409297e45c6698eaf11b979809937693bf542wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	202409297e45c6698eaf11b979809937693bf542wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	202409297e45c6698eaf11b979809937693bf542wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8A1985E3-2014-4377-8DE1-6C0A93A3FB83}\WpadDecisionReason = "1"	202409297e45c6698eaf11b979809937693bf542wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8A1985E3-2014-4377-8DE1-6C0A93A3FB83}\WpadDecisionTime = 0000b579b412db01	202409297e45c6698eaf11b979809937693bf542wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8A1985E3-2014-4377-8DE1-6C0A93A3FB83}\WpadNetworkName = "Network 3"	202409297e45c6698eaf11b979809937693bf542wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	202409297e45c6698eaf11b979809937693bf542wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	202409297e45c6698eaf11b979809937693bf542wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	202409297e45c6698eaf11b979809937693bf542wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\36-a0-6b-02-b8-d1	202409297e45c6698eaf11b979809937693bf542wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	202409297e45c6698eaf11b979809937693bf542wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8A1985E3-2014-4377-8DE1-6C0A93A3FB83}\WpadDecision = "0"	202409297e45c6698eaf11b979809937693bf542wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00e3000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	202409297e45c6698eaf11b979809937693bf542wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\36-a0-6b-02-b8-d1\WpadDecisionReason = "1"	202409297e45c6698eaf11b979809937693bf542wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\36-a0-6b-02-b8-d1\WpadDecision = "0"	202409297e45c6698eaf11b979809937693bf542wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	202409297e45c6698eaf11b979809937693bf542wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	202409297e45c6698eaf11b979809937693bf542wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	202409297e45c6698eaf11b979809937693bf542wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	202409297e45c6698eaf11b979809937693bf542wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8A1985E3-2014-4377-8DE1-6C0A93A3FB83}	202409297e45c6698eaf11b979809937693bf542wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8A1985E3-2014-4377-8DE1-6C0A93A3FB83}\36-a0-6b-02-b8-d1	202409297e45c6698eaf11b979809937693bf542wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\36-a0-6b-02-b8-d1\WpadDecisionTime = 0000b579b412db01	202409297e45c6698eaf11b979809937693bf542wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	202409297e45c6698eaf11b979809937693bf542wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	202409297e45c6698eaf11b979809937693bf542wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	202409297e45c6698eaf11b979809937693bf542wannacry.exe

C:\Users\Admin\AppData\Local\Temp\202409297e45c6698eaf11b979809937693bf542wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\202409297e45c6698eaf11b979809937693bf542wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2500
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:1168

C:\Users\Admin\AppData\Local\Temp\202409297e45c6698eaf11b979809937693bf542wannacry.exe
C:\Users\Admin\AppData\Local\Temp\202409297e45c6698eaf11b979809937693bf542wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2520

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
f048e21263cfd757e0ac828c5fc58f37

SHA1
67f5576c92bf6b8baab54ebcbd9786f9faf4256a

SHA256
884fc6b5c751f14ee620a06c4745e21c6fcd2681b9d554fb25ef6d4bc06538cc

SHA512
c00c7f0500b993834bc7a9a45f7ae8f034387f5e96ec3f6c277e2b2296b1871d948388f021a4be72e69b1d3ee1e0e7fae10ebe65223d7e76dec92b176e9d0513

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