wannacry | f2ca46f66c67c987fb0dccc713fc064549d5431bf3fdd378128b1e2e264f9863

General

Target

2025-01-17_244aa8fb39c351f8974c2bc50f62bc2a_wannacry.exe
Size

5.0MB
MD5

244aa8fb39c351f8974c2bc50f62bc2a
SHA1

a06de405b65a00909626afaea1dc95c0884381e8
SHA256

f2ca46f66c67c987fb0dccc713fc064549d5431bf3fdd378128b1e2e264f9863
SHA512

8e1ef147c94e7de5e20dbb4e2caddd28877d8e12f0645834e74562df168ca8debb61c5c68164087d7a5a9a15a88ab09eb651923f9735e08baa6e460e221d507e
SSDEEP

6144:eE9l9ynRIYVTH5DgSgNajldktM0XXrCIagQhMV9qbB:e1bLgmluCtgQhMb

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 (3323) 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
2108	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\Roaming\Microsoft\Windows\Cookies\L00P8O78.txt	2025-01-17_244aa8fb39c351f8974c2bc50f62bc2a_wannacry.exe
File created	C:\Windows\SysWOW64\config\systemprofile\AppData\Roaming\Microsoft\Windows\Cookies\SGBXDPHR.txt	2025-01-17_244aa8fb39c351f8974c2bc50f62bc2a_wannacry.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Roaming\Microsoft\Windows\Cookies\SGBXDPHR.txt	2025-01-17_244aa8fb39c351f8974c2bc50f62bc2a_wannacry.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	2025-01-17_244aa8fb39c351f8974c2bc50f62bc2a_wannacry.exe
File created	C:\Windows\SysWOW64\config\systemprofile\AppData\Roaming\Microsoft\Windows\Cookies\L00P8O78.txt	2025-01-17_244aa8fb39c351f8974c2bc50f62bc2a_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2025-01-17_244aa8fb39c351f8974c2bc50f62bc2a_wannacry.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2800	2108	WerFault.exe	31

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	tasksche.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-17_244aa8fb39c351f8974c2bc50f62bc2a_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-17_244aa8fb39c351f8974c2bc50f62bc2a_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00a6000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-17_244aa8fb39c351f8974c2bc50f62bc2a_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{1374943E-D767-4E68-9E10-3BD33983978C}\WpadDecisionReason = "1"	2025-01-17_244aa8fb39c351f8974c2bc50f62bc2a_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{1374943E-D767-4E68-9E10-3BD33983978C}\WpadNetworkName = "Network 3"	2025-01-17_244aa8fb39c351f8974c2bc50f62bc2a_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{1374943E-D767-4E68-9E10-3BD33983978C}\0a-9d-27-54-c3-7a	2025-01-17_244aa8fb39c351f8974c2bc50f62bc2a_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2025-01-17_244aa8fb39c351f8974c2bc50f62bc2a_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2025-01-17_244aa8fb39c351f8974c2bc50f62bc2a_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2025-01-17_244aa8fb39c351f8974c2bc50f62bc2a_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2025-01-17_244aa8fb39c351f8974c2bc50f62bc2a_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0a-9d-27-54-c3-7a\WpadDecisionReason = "1"	2025-01-17_244aa8fb39c351f8974c2bc50f62bc2a_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0a-9d-27-54-c3-7a	2025-01-17_244aa8fb39c351f8974c2bc50f62bc2a_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2025-01-17_244aa8fb39c351f8974c2bc50f62bc2a_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2025-01-17_244aa8fb39c351f8974c2bc50f62bc2a_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2025-01-17_244aa8fb39c351f8974c2bc50f62bc2a_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2025-01-17_244aa8fb39c351f8974c2bc50f62bc2a_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{1374943E-D767-4E68-9E10-3BD33983978C}\WpadDecisionTime = 403c069fde68db01	2025-01-17_244aa8fb39c351f8974c2bc50f62bc2a_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0a-9d-27-54-c3-7a\WpadDecisionTime = 403c069fde68db01	2025-01-17_244aa8fb39c351f8974c2bc50f62bc2a_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-17_244aa8fb39c351f8974c2bc50f62bc2a_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2025-01-17_244aa8fb39c351f8974c2bc50f62bc2a_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-17_244aa8fb39c351f8974c2bc50f62bc2a_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{1374943E-D767-4E68-9E10-3BD33983978C}	2025-01-17_244aa8fb39c351f8974c2bc50f62bc2a_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2025-01-17_244aa8fb39c351f8974c2bc50f62bc2a_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2025-01-17_244aa8fb39c351f8974c2bc50f62bc2a_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{1374943E-D767-4E68-9E10-3BD33983978C}\WpadDecision = "0"	2025-01-17_244aa8fb39c351f8974c2bc50f62bc2a_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0a-9d-27-54-c3-7a\WpadDecision = "0"	2025-01-17_244aa8fb39c351f8974c2bc50f62bc2a_wannacry.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2056 wrote to memory of 2108	2056	2025-01-17_244aa8fb39c351f8974c2bc50f62bc2a_wannacry.exe	31
PID 2056 wrote to memory of 2108	2056	2025-01-17_244aa8fb39c351f8974c2bc50f62bc2a_wannacry.exe	31
PID 2056 wrote to memory of 2108	2056	2025-01-17_244aa8fb39c351f8974c2bc50f62bc2a_wannacry.exe	31
PID 2056 wrote to memory of 2108	2056	2025-01-17_244aa8fb39c351f8974c2bc50f62bc2a_wannacry.exe	31
PID 2108 wrote to memory of 2800	2108	tasksche.exe	32
PID 2108 wrote to memory of 2800	2108	tasksche.exe	32
PID 2108 wrote to memory of 2800	2108	tasksche.exe	32
PID 2108 wrote to memory of 2800	2108	tasksche.exe	32

C:\Users\Admin\AppData\Local\Temp\2025-01-17_244aa8fb39c351f8974c2bc50f62bc2a_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-17_244aa8fb39c351f8974c2bc50f62bc2a_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2056
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2108
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2108 -s 36
    3⤵
    - Program crash
    PID:2800

C:\Users\Admin\AppData\Local\Temp\2025-01-17_244aa8fb39c351f8974c2bc50f62bc2a_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2025-01-17_244aa8fb39c351f8974c2bc50f62bc2a_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:772

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
f67391ba69dfdb921e14ed3b166d9d93

SHA1
a1b73f38f2bd592e48089a48c918f61fd19acc15

SHA256
961485deb29d59ce1acc3e60f8a1e2b7d5aa9050dbeb183d2bb1b776964211d2

SHA512
c7d1045d360b5982d742bdcc3a301021d83349c426124cdf9e14d88eebe0066fdc30aa5da3d67b593a3d8af3daec16b9bdf068b643429c00bd92434486acded0

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