wannacry | 28d671170d03be4a1a2089d94934ccb5e5294930feb9f41f15b39f4b1df7e091

General

Target

2024-10-12_27f2b73d94700642a41036bcafe343f0_wannacry.exe
Size

3.6MB
MD5

27f2b73d94700642a41036bcafe343f0
SHA1

cb3607cc591221c8c1c0cc25582f2534eae7b407
SHA256

28d671170d03be4a1a2089d94934ccb5e5294930feb9f41f15b39f4b1df7e091
SHA512

069e04325835157af63e2f1e513553e14baf8f968bab3cccf462356b1b9df8e1a52ab88f336a5752d89f5821d553ca6bda190c0dd9cc46a5335fb6980c16af57
SSDEEP

98304:XDqPoBtaRxcSUDk36SAEdhvxWa9P593R8yAVp2HI:XDqPICxcxk3ZAEUadzR8yc4HI

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3238) 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
2700	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	2024-10-12_27f2b73d94700642a41036bcafe343f0_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-10-12_27f2b73d94700642a41036bcafe343f0_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	2024-10-12_27f2b73d94700642a41036bcafe343f0_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-12_27f2b73d94700642a41036bcafe343f0_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-12_27f2b73d94700642a41036bcafe343f0_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-12_27f2b73d94700642a41036bcafe343f0_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_27f2b73d94700642a41036bcafe343f0_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{F1270663-7083-47A2-ADE4-A415B58BF384}	2024-10-12_27f2b73d94700642a41036bcafe343f0_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{F1270663-7083-47A2-ADE4-A415B58BF384}\WpadDecisionTime = 10a9b92a551cdb01	2024-10-12_27f2b73d94700642a41036bcafe343f0_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-10-12_27f2b73d94700642a41036bcafe343f0_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-10-12_27f2b73d94700642a41036bcafe343f0_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-10-12_27f2b73d94700642a41036bcafe343f0_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-10-12_27f2b73d94700642a41036bcafe343f0_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{F1270663-7083-47A2-ADE4-A415B58BF384}\WpadNetworkName = "Network 3"	2024-10-12_27f2b73d94700642a41036bcafe343f0_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{F1270663-7083-47A2-ADE4-A415B58BF384}\1e-ce-87-45-3d-07	2024-10-12_27f2b73d94700642a41036bcafe343f0_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\1e-ce-87-45-3d-07\WpadDecision = "0"	2024-10-12_27f2b73d94700642a41036bcafe343f0_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_27f2b73d94700642a41036bcafe343f0_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-10-12_27f2b73d94700642a41036bcafe343f0_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-10-12_27f2b73d94700642a41036bcafe343f0_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-10-12_27f2b73d94700642a41036bcafe343f0_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{F1270663-7083-47A2-ADE4-A415B58BF384}\WpadDecisionReason = "1"	2024-10-12_27f2b73d94700642a41036bcafe343f0_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\1e-ce-87-45-3d-07	2024-10-12_27f2b73d94700642a41036bcafe343f0_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\1e-ce-87-45-3d-07\WpadDecisionReason = "1"	2024-10-12_27f2b73d94700642a41036bcafe343f0_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-10-12_27f2b73d94700642a41036bcafe343f0_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-10-12_27f2b73d94700642a41036bcafe343f0_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00ab000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_27f2b73d94700642a41036bcafe343f0_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{F1270663-7083-47A2-ADE4-A415B58BF384}\WpadDecision = "0"	2024-10-12_27f2b73d94700642a41036bcafe343f0_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\1e-ce-87-45-3d-07\WpadDecisionTime = 10a9b92a551cdb01	2024-10-12_27f2b73d94700642a41036bcafe343f0_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-10-12_27f2b73d94700642a41036bcafe343f0_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-12_27f2b73d94700642a41036bcafe343f0_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2156
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2700

C:\Users\Admin\AppData\Local\Temp\2024-10-12_27f2b73d94700642a41036bcafe343f0_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-10-12_27f2b73d94700642a41036bcafe343f0_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:828

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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