wannacry | 5e6fbb054577a81a86e1561b7bfc1d10504a8d693b5bb34d0f11b86db3e76193

General

Target

2025-01-19_aeafada8e6842bd74ccd8c7718e070ce_wannacry.exe
Size

5.0MB
MD5

aeafada8e6842bd74ccd8c7718e070ce
SHA1

2e3eec7f6361ad7d385bf033138b5cb62b6f9a05
SHA256

5e6fbb054577a81a86e1561b7bfc1d10504a8d693b5bb34d0f11b86db3e76193
SHA512

2c382ba4031d3bda98f50cfabbf5eb4e491f4d35316c609137d78ef9e6a9fba00ed3588415621bfef38916fdb3241e5a6f71572f90715d012ad40cc3d639cd77
SSDEEP

12288:e1bLgmluCti62WfSm0iEcQhfYNVUy7ckPU82900Ve71qiAJjjjSzzzjzzzQDDDTl:QbLguriIfEcQdIVUacMNge

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 (2718) 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
2656	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	2025-01-19_aeafada8e6842bd74ccd8c7718e070ce_wannacry.exe
File created	C:\Windows\SysWOW64\config\systemprofile\AppData\Roaming\Microsoft\Windows\Cookies\SNB5KZ8P.txt	2025-01-19_aeafada8e6842bd74ccd8c7718e070ce_wannacry.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Roaming\Microsoft\Windows\Cookies\SNB5KZ8P.txt	2025-01-19_aeafada8e6842bd74ccd8c7718e070ce_wannacry.exe
File created	C:\Windows\SysWOW64\config\systemprofile\AppData\Roaming\Microsoft\Windows\Cookies\W6UPDFX6.txt	2025-01-19_aeafada8e6842bd74ccd8c7718e070ce_wannacry.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Roaming\Microsoft\Windows\Cookies\W6UPDFX6.txt	2025-01-19_aeafada8e6842bd74ccd8c7718e070ce_wannacry.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2025-01-19_aeafada8e6842bd74ccd8c7718e070ce_wannacry.exe
File created	C:\Windows\__tmp_rar_sfx_access_check_259521406	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	2025-01-19_aeafada8e6842bd74ccd8c7718e070ce_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-19_aeafada8e6842bd74ccd8c7718e070ce_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	tasksche.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{FB242341-6293-4042-9862-A3E021EB245E}\WpadDecisionReason = "1"	2025-01-19_aeafada8e6842bd74ccd8c7718e070ce_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\1a-59-10-1e-fa-83	2025-01-19_aeafada8e6842bd74ccd8c7718e070ce_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\1a-59-10-1e-fa-83\WpadDecisionReason = "1"	2025-01-19_aeafada8e6842bd74ccd8c7718e070ce_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2025-01-19_aeafada8e6842bd74ccd8c7718e070ce_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-19_aeafada8e6842bd74ccd8c7718e070ce_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2025-01-19_aeafada8e6842bd74ccd8c7718e070ce_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2025-01-19_aeafada8e6842bd74ccd8c7718e070ce_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0118000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-19_aeafada8e6842bd74ccd8c7718e070ce_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-19_aeafada8e6842bd74ccd8c7718e070ce_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2025-01-19_aeafada8e6842bd74ccd8c7718e070ce_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\1a-59-10-1e-fa-83\WpadDecisionTime = 807ac58d8d6adb01	2025-01-19_aeafada8e6842bd74ccd8c7718e070ce_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{FB242341-6293-4042-9862-A3E021EB245E}\WpadDecision = "0"	2025-01-19_aeafada8e6842bd74ccd8c7718e070ce_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2025-01-19_aeafada8e6842bd74ccd8c7718e070ce_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2025-01-19_aeafada8e6842bd74ccd8c7718e070ce_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2025-01-19_aeafada8e6842bd74ccd8c7718e070ce_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2025-01-19_aeafada8e6842bd74ccd8c7718e070ce_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{FB242341-6293-4042-9862-A3E021EB245E}	2025-01-19_aeafada8e6842bd74ccd8c7718e070ce_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{FB242341-6293-4042-9862-A3E021EB245E}\1a-59-10-1e-fa-83	2025-01-19_aeafada8e6842bd74ccd8c7718e070ce_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\1a-59-10-1e-fa-83\WpadDecision = "0"	2025-01-19_aeafada8e6842bd74ccd8c7718e070ce_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2025-01-19_aeafada8e6842bd74ccd8c7718e070ce_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2025-01-19_aeafada8e6842bd74ccd8c7718e070ce_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2025-01-19_aeafada8e6842bd74ccd8c7718e070ce_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{FB242341-6293-4042-9862-A3E021EB245E}\WpadDecisionTime = 807ac58d8d6adb01	2025-01-19_aeafada8e6842bd74ccd8c7718e070ce_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{FB242341-6293-4042-9862-A3E021EB245E}\WpadNetworkName = "Network 3"	2025-01-19_aeafada8e6842bd74ccd8c7718e070ce_wannacry.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2656	tasksche.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2216 wrote to memory of 2656	2216	2025-01-19_aeafada8e6842bd74ccd8c7718e070ce_wannacry.exe	33
PID 2216 wrote to memory of 2656	2216	2025-01-19_aeafada8e6842bd74ccd8c7718e070ce_wannacry.exe	33
PID 2216 wrote to memory of 2656	2216	2025-01-19_aeafada8e6842bd74ccd8c7718e070ce_wannacry.exe	33
PID 2216 wrote to memory of 2656	2216	2025-01-19_aeafada8e6842bd74ccd8c7718e070ce_wannacry.exe	33
PID 2216 wrote to memory of 2656	2216	2025-01-19_aeafada8e6842bd74ccd8c7718e070ce_wannacry.exe	33
PID 2216 wrote to memory of 2656	2216	2025-01-19_aeafada8e6842bd74ccd8c7718e070ce_wannacry.exe	33
PID 2216 wrote to memory of 2656	2216	2025-01-19_aeafada8e6842bd74ccd8c7718e070ce_wannacry.exe	33

C:\Users\Admin\AppData\Local\Temp\2025-01-19_aeafada8e6842bd74ccd8c7718e070ce_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-19_aeafada8e6842bd74ccd8c7718e070ce_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2216
- 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:2656

C:\Users\Admin\AppData\Local\Temp\2025-01-19_aeafada8e6842bd74ccd8c7718e070ce_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2025-01-19_aeafada8e6842bd74ccd8c7718e070ce_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2612

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
22c9cf30ef878ac1d75e83e6e4923342

SHA1
142071c7436fbf77d8eeeb430773ae2151e96914

SHA256
562af7f701d9f4423f57606e3b3ab832512ef0649734224e784b57a7c0571412

SHA512
a33cefe35c0c3ea9a4cf24e6dedf3102fecbf821d959668f94f6bad6a281846433fbf3a83bf571e34d9a643e9e3fe60399883c795493f1133f0a7c03115f0274

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Analysis

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