wannacry | ffac85b2efbc0fd79dd6beaaba29904a0267fc2b121ac204c1f7142a9cb1aea7

General

Target

2024-08-18_f2896ce106290fc3dd6df15e6b44c86c_wannacry.exe
Size

3.6MB
MD5

f2896ce106290fc3dd6df15e6b44c86c
SHA1

dcb8b16d3d21420d2429717f52901b5fed2586eb
SHA256

ffac85b2efbc0fd79dd6beaaba29904a0267fc2b121ac204c1f7142a9cb1aea7
SHA512

4bd167ede1495cbeafc02ea9d80387f155fc11ce6f3db7220a3a0cef7bc7cdb2c2ced73e5db622692f2314deff8a58f60bda26d1ab0a01ee54731bf6918a9bef
SSDEEP

49152:XnAQqMSPbcBVQej/1INRx+TSqTdX5pAbvxJM0H9PAME:XDqPoBhz1aRxcSULpAjxWa9P5

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3351) 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
3044	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	2024-08-18_f2896ce106290fc3dd6df15e6b44c86c_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-08-18_f2896ce106290fc3dd6df15e6b44c86c_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	2024-08-18_f2896ce106290fc3dd6df15e6b44c86c_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-08-18_f2896ce106290fc3dd6df15e6b44c86c_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\6e-94-5c-69-b3-50\WpadDecisionTime = 70f72bcc1df1da01	2024-08-18_f2896ce106290fc3dd6df15e6b44c86c_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\6e-94-5c-69-b3-50\WpadDecision = "0"	2024-08-18_f2896ce106290fc3dd6df15e6b44c86c_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-08-18_f2896ce106290fc3dd6df15e6b44c86c_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-08-18_f2896ce106290fc3dd6df15e6b44c86c_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-08-18_f2896ce106290fc3dd6df15e6b44c86c_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-08-18_f2896ce106290fc3dd6df15e6b44c86c_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0025000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-08-18_f2896ce106290fc3dd6df15e6b44c86c_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{AE2F8129-44D7-4EFB-B0AD-2616222C41D1}	2024-08-18_f2896ce106290fc3dd6df15e6b44c86c_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-08-18_f2896ce106290fc3dd6df15e6b44c86c_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-08-18_f2896ce106290fc3dd6df15e6b44c86c_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-08-18_f2896ce106290fc3dd6df15e6b44c86c_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{AE2F8129-44D7-4EFB-B0AD-2616222C41D1}\WpadDecisionReason = "1"	2024-08-18_f2896ce106290fc3dd6df15e6b44c86c_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{AE2F8129-44D7-4EFB-B0AD-2616222C41D1}\WpadDecision = "0"	2024-08-18_f2896ce106290fc3dd6df15e6b44c86c_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\6e-94-5c-69-b3-50	2024-08-18_f2896ce106290fc3dd6df15e6b44c86c_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-08-18_f2896ce106290fc3dd6df15e6b44c86c_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-08-18_f2896ce106290fc3dd6df15e6b44c86c_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-08-18_f2896ce106290fc3dd6df15e6b44c86c_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-08-18_f2896ce106290fc3dd6df15e6b44c86c_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{AE2F8129-44D7-4EFB-B0AD-2616222C41D1}\6e-94-5c-69-b3-50	2024-08-18_f2896ce106290fc3dd6df15e6b44c86c_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-08-18_f2896ce106290fc3dd6df15e6b44c86c_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-08-18_f2896ce106290fc3dd6df15e6b44c86c_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{AE2F8129-44D7-4EFB-B0AD-2616222C41D1}\WpadDecisionTime = 70f72bcc1df1da01	2024-08-18_f2896ce106290fc3dd6df15e6b44c86c_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{AE2F8129-44D7-4EFB-B0AD-2616222C41D1}\WpadNetworkName = "Network 3"	2024-08-18_f2896ce106290fc3dd6df15e6b44c86c_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\6e-94-5c-69-b3-50\WpadDecisionReason = "1"	2024-08-18_f2896ce106290fc3dd6df15e6b44c86c_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-08-18_f2896ce106290fc3dd6df15e6b44c86c_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-08-18_f2896ce106290fc3dd6df15e6b44c86c_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2524
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:3044

C:\Users\Admin\AppData\Local\Temp\2024-08-18_f2896ce106290fc3dd6df15e6b44c86c_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-08-18_f2896ce106290fc3dd6df15e6b44c86c_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2700

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
77ffd522c2635cea31ce0a90cf3e2894

SHA1
3931094c6091efaefb87d741ea68dc78af29ad72

SHA256
2d574cc990b342ee3b24698200172cf4fb422987bcc01d2bc758a1d59e106a35

SHA512
830bcfbd741e7e8de36efd9f762ecffc318582580d6b6c23f2c24e4f7c699a0305532094307d4e4616070eb6ff69a0d120d4f0a36d092f7f749b1b65ad3e18f2

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