wannacry | 0dbb217a2e4c7d0abfdd91ec19fbe91a77df01284db5cbe607671fa411235514

General

Target

2025-01-09_2990f860c0f5f95060644c0d8b21b671_wannacry.exe
Size

2.2MB
MD5

2990f860c0f5f95060644c0d8b21b671
SHA1

caa3baacb6090531ce43be923ad5fece21728a6b
SHA256

0dbb217a2e4c7d0abfdd91ec19fbe91a77df01284db5cbe607671fa411235514
SHA512

f13ec6fa173cab5c8213d2a91e67413eaf54dfbf6a6160646a6dd66f8a406fa6e1461e8e87dad3d04b7d31dcc75af811de80b3b84de84e4f11c058714dbf55a7
SSDEEP

24576:QbLguriIfEcQdIVUv5PwxhrWYK+ef0QeQjG/D8kIqRYoAdNLKz6626M+vbOSSqTj:QnpEKUv9wC7+VQej/1INRx+TSqTdX1

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 (3347) 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
2092	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 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5	2025-01-09_2990f860c0f5f95060644c0d8b21b671_wannacry.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE	2025-01-09_2990f860c0f5f95060644c0d8b21b671_wannacry.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies	2025-01-09_2990f860c0f5f95060644c0d8b21b671_wannacry.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5	2025-01-09_2990f860c0f5f95060644c0d8b21b671_wannacry.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2025-01-09_2990f860c0f5f95060644c0d8b21b671_wannacry.exe
File created	C:\Windows\__tmp_rar_sfx_access_check_240629953	tasksche.exe
File created	C:\Windows\eee.exe	tasksche.exe

System Location Discovery: System Language Discovery 1 TTPs 3 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_2990f860c0f5f95060644c0d8b21b671_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-09_2990f860c0f5f95060644c0d8b21b671_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	tasksche.exe

Modifies data under HKEY_USERS 15 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	2025-01-09_2990f860c0f5f95060644c0d8b21b671_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software	2025-01-09_2990f860c0f5f95060644c0d8b21b671_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion	2025-01-09_2990f860c0f5f95060644c0d8b21b671_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2025-01-09_2990f860c0f5f95060644c0d8b21b671_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	2025-01-09_2990f860c0f5f95060644c0d8b21b671_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows	2025-01-09_2990f860c0f5f95060644c0d8b21b671_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\P3P	2025-01-09_2990f860c0f5f95060644c0d8b21b671_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2025-01-09_2990f860c0f5f95060644c0d8b21b671_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2025-01-09_2990f860c0f5f95060644c0d8b21b671_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	2025-01-09_2990f860c0f5f95060644c0d8b21b671_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	2025-01-09_2990f860c0f5f95060644c0d8b21b671_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2025-01-09_2990f860c0f5f95060644c0d8b21b671_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft	2025-01-09_2990f860c0f5f95060644c0d8b21b671_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2025-01-09_2990f860c0f5f95060644c0d8b21b671_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\P3P\History	2025-01-09_2990f860c0f5f95060644c0d8b21b671_wannacry.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4980 wrote to memory of 2092	4980	2025-01-09_2990f860c0f5f95060644c0d8b21b671_wannacry.exe	84
PID 4980 wrote to memory of 2092	4980	2025-01-09_2990f860c0f5f95060644c0d8b21b671_wannacry.exe	84
PID 4980 wrote to memory of 2092	4980	2025-01-09_2990f860c0f5f95060644c0d8b21b671_wannacry.exe	84

C:\Users\Admin\AppData\Local\Temp\2025-01-09_2990f860c0f5f95060644c0d8b21b671_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-09_2990f860c0f5f95060644c0d8b21b671_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4980
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  PID:2092

C:\Users\Admin\AppData\Local\Temp\2025-01-09_2990f860c0f5f95060644c0d8b21b671_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2025-01-09_2990f860c0f5f95060644c0d8b21b671_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:3560

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
2.0MB

MD5
5252e37331c81b108974e28b46d96467

SHA1
95ccd4dedc6cc59fc41b45c3731ff15c75e1c3a0

SHA256
c16b13c9d5593361c87798d32160dd2efe1290a4595c9d83ba29db10ed3520ed

SHA512
e58db2def804937e48e6ed38f97c6f8e9d972bc07fe66f2e6f4b5186fe6f0118e0dfa2f51cbba19b59fe5396d363769a264fe31ee7d38a6ae464a950474e45bc

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Analysis

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