wannacry | b2ee8b96318c2880da5d8bc11c9b799c1aa81527125a98c741e5b1d777b1a698

General

Target

2025-01-24_50c52522445b45c678d7711453ee23a4_wannacry.exe
Size

5.0MB
MD5

50c52522445b45c678d7711453ee23a4
SHA1

626648d7cb137a9adc4af2208e781ca4f0d6b44d
SHA256

b2ee8b96318c2880da5d8bc11c9b799c1aa81527125a98c741e5b1d777b1a698
SHA512

0443f5d2ddbc3b5c2d904ed68fe143e6f97c643546ce76b4a08f28ad805358d9fea69baa92ebb09b20be5f711d9137ceac4be16d4b9c557c086c130fceaf1ca3
SSDEEP

12288:e1bLgmluCti62WfSm0iEcQhfYNVUy7ckPU82900Ve7zw+K+DHeQYSUjEXFGeXE3o:QbLguriIfEcQdIVUacMNgef0QeQjG

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 (3264) 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
356	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 5 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	2025-01-24_50c52522445b45c678d7711453ee23a4_wannacry.exe
File created	C:\Windows\SysWOW64\config\systemprofile\AppData\Roaming\Microsoft\Windows\Cookies\TM21ZIJ5.txt	2025-01-24_50c52522445b45c678d7711453ee23a4_wannacry.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Roaming\Microsoft\Windows\Cookies\TM21ZIJ5.txt	2025-01-24_50c52522445b45c678d7711453ee23a4_wannacry.exe
File created	C:\Windows\SysWOW64\config\systemprofile\AppData\Roaming\Microsoft\Windows\Cookies\9LQVXTV4.txt	2025-01-24_50c52522445b45c678d7711453ee23a4_wannacry.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Roaming\Microsoft\Windows\Cookies\9LQVXTV4.txt	2025-01-24_50c52522445b45c678d7711453ee23a4_wannacry.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2025-01-24_50c52522445b45c678d7711453ee23a4_wannacry.exe
File created	C:\Windows\__tmp_rar_sfx_access_check_259438445	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	2025-01-24_50c52522445b45c678d7711453ee23a4_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-24_50c52522445b45c678d7711453ee23a4_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	tasksche.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\5e-14-0a-16-b9-9d	2025-01-24_50c52522445b45c678d7711453ee23a4_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A759F3AE-18C2-4115-96EB-B25D1DC6AE01}\5e-14-0a-16-b9-9d	2025-01-24_50c52522445b45c678d7711453ee23a4_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\5e-14-0a-16-b9-9d\WpadDecisionReason = "1"	2025-01-24_50c52522445b45c678d7711453ee23a4_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2025-01-24_50c52522445b45c678d7711453ee23a4_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2025-01-24_50c52522445b45c678d7711453ee23a4_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-24_50c52522445b45c678d7711453ee23a4_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2025-01-24_50c52522445b45c678d7711453ee23a4_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0169000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-24_50c52522445b45c678d7711453ee23a4_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2025-01-24_50c52522445b45c678d7711453ee23a4_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2025-01-24_50c52522445b45c678d7711453ee23a4_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2025-01-24_50c52522445b45c678d7711453ee23a4_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A759F3AE-18C2-4115-96EB-B25D1DC6AE01}\WpadDecisionReason = "1"	2025-01-24_50c52522445b45c678d7711453ee23a4_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A759F3AE-18C2-4115-96EB-B25D1DC6AE01}\WpadDecisionTime = 004efb98ff6ddb01	2025-01-24_50c52522445b45c678d7711453ee23a4_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-24_50c52522445b45c678d7711453ee23a4_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2025-01-24_50c52522445b45c678d7711453ee23a4_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A759F3AE-18C2-4115-96EB-B25D1DC6AE01}	2025-01-24_50c52522445b45c678d7711453ee23a4_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\5e-14-0a-16-b9-9d\WpadDecisionTime = 004efb98ff6ddb01	2025-01-24_50c52522445b45c678d7711453ee23a4_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A759F3AE-18C2-4115-96EB-B25D1DC6AE01}\WpadNetworkName = "Network 3"	2025-01-24_50c52522445b45c678d7711453ee23a4_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\5e-14-0a-16-b9-9d\WpadDecision = "0"	2025-01-24_50c52522445b45c678d7711453ee23a4_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2025-01-24_50c52522445b45c678d7711453ee23a4_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2025-01-24_50c52522445b45c678d7711453ee23a4_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2025-01-24_50c52522445b45c678d7711453ee23a4_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2025-01-24_50c52522445b45c678d7711453ee23a4_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A759F3AE-18C2-4115-96EB-B25D1DC6AE01}\WpadDecision = "0"	2025-01-24_50c52522445b45c678d7711453ee23a4_wannacry.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
356	tasksche.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1624 wrote to memory of 356	1624	2025-01-24_50c52522445b45c678d7711453ee23a4_wannacry.exe	31
PID 1624 wrote to memory of 356	1624	2025-01-24_50c52522445b45c678d7711453ee23a4_wannacry.exe	31
PID 1624 wrote to memory of 356	1624	2025-01-24_50c52522445b45c678d7711453ee23a4_wannacry.exe	31
PID 1624 wrote to memory of 356	1624	2025-01-24_50c52522445b45c678d7711453ee23a4_wannacry.exe	31
PID 1624 wrote to memory of 356	1624	2025-01-24_50c52522445b45c678d7711453ee23a4_wannacry.exe	31
PID 1624 wrote to memory of 356	1624	2025-01-24_50c52522445b45c678d7711453ee23a4_wannacry.exe	31
PID 1624 wrote to memory of 356	1624	2025-01-24_50c52522445b45c678d7711453ee23a4_wannacry.exe	31

C:\Users\Admin\AppData\Local\Temp\2025-01-24_50c52522445b45c678d7711453ee23a4_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-24_50c52522445b45c678d7711453ee23a4_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1624
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: GetForegroundWindowSpam
  PID:356

C:\Users\Admin\AppData\Local\Temp\2025-01-24_50c52522445b45c678d7711453ee23a4_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2025-01-24_50c52522445b45c678d7711453ee23a4_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:1272

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
9c428dfc93414f04092d137b7f81dafb

SHA1
57704be2dedab28d24aef864978db6c47ed36caa

SHA256
e4826ebadebe0eca55f8e8029887a53cb7554d7c603f73c51de48617670423df

SHA512
38af4a26701d1314fc17d3a03db859d8d459fedb6c76ab3dc8f0032410c6bf70d8fb4ae3fd1fc74dc4a04f5c21c1a85cb4f5d0f9eb4280bfc59574667aa7fca0

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Analysis

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