wannacry | 53363558a832ba3ce47137c0bfe5001f51eb83a80fb8bea4697e3beabd335461

General

Target

2024-10-10_4d1934a213eb3aa074a00c39033b54be_wannacry.exe
Size

3.6MB
MD5

4d1934a213eb3aa074a00c39033b54be
SHA1

f3652f68d119574d4187fe3580a27326ce13e6bd
SHA256

53363558a832ba3ce47137c0bfe5001f51eb83a80fb8bea4697e3beabd335461
SHA512

85f4a4cb5cc737d3ea652f9c002dd0b356bb37041bec7ac8c0d3df1aeddbefef0b632aa5c54540cf22ed388ed47bc294780d111cd2e945f6622c035b3fb96117
SSDEEP

98304:XDqPoBF1aRxcSUDk36SAEdhvxWa9P593R8yAVp2HI:XDqPW1Cxcxk3ZAEUadzR8yc4HI

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3230) 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
2492	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	2024-10-10_4d1934a213eb3aa074a00c39033b54be_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-10-10_4d1934a213eb3aa074a00c39033b54be_wannacry.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	2024-10-10_4d1934a213eb3aa074a00c39033b54be_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-10_4d1934a213eb3aa074a00c39033b54be_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-10-10_4d1934a213eb3aa074a00c39033b54be_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-10-10_4d1934a213eb3aa074a00c39033b54be_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0127000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-10_4d1934a213eb3aa074a00c39033b54be_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A7443692-E514-43B5-B715-15866F785080}\WpadDecision = "0"	2024-10-10_4d1934a213eb3aa074a00c39033b54be_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A7443692-E514-43B5-B715-15866F785080}\WpadNetworkName = "Network 3"	2024-10-10_4d1934a213eb3aa074a00c39033b54be_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-10_4d1934a213eb3aa074a00c39033b54be_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-10-10_4d1934a213eb3aa074a00c39033b54be_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-10_4d1934a213eb3aa074a00c39033b54be_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-10-10_4d1934a213eb3aa074a00c39033b54be_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-10-10_4d1934a213eb3aa074a00c39033b54be_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-10-10_4d1934a213eb3aa074a00c39033b54be_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A7443692-E514-43B5-B715-15866F785080}\WpadDecisionTime = a06b0e1b6e1bdb01	2024-10-10_4d1934a213eb3aa074a00c39033b54be_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0a-b2-d5-76-d1-c9	2024-10-10_4d1934a213eb3aa074a00c39033b54be_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-10_4d1934a213eb3aa074a00c39033b54be_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-10-10_4d1934a213eb3aa074a00c39033b54be_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-10-10_4d1934a213eb3aa074a00c39033b54be_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-10-10_4d1934a213eb3aa074a00c39033b54be_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A7443692-E514-43B5-B715-15866F785080}\WpadDecisionReason = "1"	2024-10-10_4d1934a213eb3aa074a00c39033b54be_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A7443692-E514-43B5-B715-15866F785080}\0a-b2-d5-76-d1-c9	2024-10-10_4d1934a213eb3aa074a00c39033b54be_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0a-b2-d5-76-d1-c9\WpadDecisionReason = "1"	2024-10-10_4d1934a213eb3aa074a00c39033b54be_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0a-b2-d5-76-d1-c9\WpadDecision = "0"	2024-10-10_4d1934a213eb3aa074a00c39033b54be_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-10_4d1934a213eb3aa074a00c39033b54be_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A7443692-E514-43B5-B715-15866F785080}	2024-10-10_4d1934a213eb3aa074a00c39033b54be_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0a-b2-d5-76-d1-c9\WpadDecisionTime = a06b0e1b6e1bdb01	2024-10-10_4d1934a213eb3aa074a00c39033b54be_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-10-10_4d1934a213eb3aa074a00c39033b54be_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-10_4d1934a213eb3aa074a00c39033b54be_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2076
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2492

C:\Users\Admin\AppData\Local\Temp\2024-10-10_4d1934a213eb3aa074a00c39033b54be_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-10-10_4d1934a213eb3aa074a00c39033b54be_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:1920

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
d7ba97b96502b99fb189f0071b2378e2

SHA1
7a76051e68b0d99d8b4d410f9f64f0a13fc9e1bf

SHA256
96bab46aed40e7687bde2ac9b80792323ebdb789dd91278bf44586778e880cba

SHA512
72f39bf5cf628518a8a52d4ccddd20966bcc3b49be9071be7b3ff8801616f0a7759b9c170bbd43fe43d4b8c6d3e58d96e7f30c9fb124412dfc43604fc40aa7b1

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