wannacry | 6697db10d79a9d5e1a68c525c43af9d455dc3d0fc8b67e29668395c25b53aec1

General

Target

2025-01-09_99faa6d726ad379c5caae924b368ffa3_wannacry.exe
Size

3.6MB
MD5

99faa6d726ad379c5caae924b368ffa3
SHA1

a51eae2019167d54dc6a9bc50670b45fe2205a19
SHA256

6697db10d79a9d5e1a68c525c43af9d455dc3d0fc8b67e29668395c25b53aec1
SHA512

532f28f794a64ae0ead2de2a71f3483a161959f2df3c9d9f5aa756383571cd24f093b61cc978e1d54d15072b0021320c63aef4149c351d7f0e6a134bef42c3b1
SSDEEP

98304:XDqPoBhz1aRxcSUDk36SAEdhvxWa9P593R:XDqPe1Cxcxk3ZAEUadzR

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 (3221) 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
2660	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	2025-01-09_99faa6d726ad379c5caae924b368ffa3_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2025-01-09_99faa6d726ad379c5caae924b368ffa3_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	2025-01-09_99faa6d726ad379c5caae924b368ffa3_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-09_99faa6d726ad379c5caae924b368ffa3_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2025-01-09_99faa6d726ad379c5caae924b368ffa3_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2025-01-09_99faa6d726ad379c5caae924b368ffa3_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8D8B0467-6AFE-45A6-90FA-C1C66B17D708}	2025-01-09_99faa6d726ad379c5caae924b368ffa3_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8D8B0467-6AFE-45A6-90FA-C1C66B17D708}\WpadNetworkName = "Network 3"	2025-01-09_99faa6d726ad379c5caae924b368ffa3_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\b2-49-0a-32-dd-a4\WpadDecisionTime = 90037f813162db01	2025-01-09_99faa6d726ad379c5caae924b368ffa3_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2025-01-09_99faa6d726ad379c5caae924b368ffa3_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2025-01-09_99faa6d726ad379c5caae924b368ffa3_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2025-01-09_99faa6d726ad379c5caae924b368ffa3_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-09_99faa6d726ad379c5caae924b368ffa3_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2025-01-09_99faa6d726ad379c5caae924b368ffa3_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2025-01-09_99faa6d726ad379c5caae924b368ffa3_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8D8B0467-6AFE-45A6-90FA-C1C66B17D708}\WpadDecision = "0"	2025-01-09_99faa6d726ad379c5caae924b368ffa3_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\b2-49-0a-32-dd-a4\WpadDecisionReason = "1"	2025-01-09_99faa6d726ad379c5caae924b368ffa3_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-09_99faa6d726ad379c5caae924b368ffa3_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2025-01-09_99faa6d726ad379c5caae924b368ffa3_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2025-01-09_99faa6d726ad379c5caae924b368ffa3_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2025-01-09_99faa6d726ad379c5caae924b368ffa3_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0163000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-09_99faa6d726ad379c5caae924b368ffa3_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8D8B0467-6AFE-45A6-90FA-C1C66B17D708}\WpadDecisionTime = 90037f813162db01	2025-01-09_99faa6d726ad379c5caae924b368ffa3_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\b2-49-0a-32-dd-a4\WpadDecision = "0"	2025-01-09_99faa6d726ad379c5caae924b368ffa3_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2025-01-09_99faa6d726ad379c5caae924b368ffa3_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8D8B0467-6AFE-45A6-90FA-C1C66B17D708}\WpadDecisionReason = "1"	2025-01-09_99faa6d726ad379c5caae924b368ffa3_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\b2-49-0a-32-dd-a4	2025-01-09_99faa6d726ad379c5caae924b368ffa3_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8D8B0467-6AFE-45A6-90FA-C1C66B17D708}\b2-49-0a-32-dd-a4	2025-01-09_99faa6d726ad379c5caae924b368ffa3_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2025-01-09_99faa6d726ad379c5caae924b368ffa3_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-09_99faa6d726ad379c5caae924b368ffa3_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2296
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2660

C:\Users\Admin\AppData\Local\Temp\2025-01-09_99faa6d726ad379c5caae924b368ffa3_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2025-01-09_99faa6d726ad379c5caae924b368ffa3_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2800

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
8be9888bfc3f6e70fba113eb7bfe7dca

SHA1
9814137c6b36e45172245a547b7324b88d5d867a

SHA256
ebdaf5cd5a95bc76397fcf99957ebfb42290817a730a827c4cd7d05555fceeed

SHA512
28616b09ad36561069d558f29b608a57ae416312f5fbc85eecd8e8366a6edf972b90f29d137029a39242173f3d5b2ce67396761922603ebdb48ab067d507b998

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