wannacry | 40b9c43e3706da73ec85603295fc439fc65fb2f02f0e7b8d3a616dcc843a16dd

General

Target

2024-12-03_44737be8132f090ccc6bccb8ee9fb151_wannacry.exe
Size

5.0MB
MD5

44737be8132f090ccc6bccb8ee9fb151
SHA1

a4306384898ff40825eadbd9acf0dda9894b47d9
SHA256

40b9c43e3706da73ec85603295fc439fc65fb2f02f0e7b8d3a616dcc843a16dd
SHA512

fbdd5f5c53c101717cb1c7435f7a8d167143494a23bb5f4d976d44ed97a65cea8d67669047d0b178bdbab51a7ca3e2eee3ab8210171d1501737460a04410f3f8
SSDEEP

49152:QnpEKUacBVvj/1INRx+TSqTdX1HkQo6SAARdhnv:QpyfBRz1aRxcSUDk36SAEdhv

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 (3214) 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
2832	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 7 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\config\systemprofile\AppData\Roaming\Microsoft\Windows\Cookies\CLW79W3Q.txt	2024-12-03_44737be8132f090ccc6bccb8ee9fb151_wannacry.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Roaming\Microsoft\Windows\Cookies\CLW79W3Q.txt	2024-12-03_44737be8132f090ccc6bccb8ee9fb151_wannacry.exe
File created	C:\Windows\SysWOW64\config\systemprofile\AppData\Roaming\Microsoft\Windows\Cookies\ARH5ELPB.txt	2024-12-03_44737be8132f090ccc6bccb8ee9fb151_wannacry.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Roaming\Microsoft\Windows\Cookies\ARH5ELPB.txt	2024-12-03_44737be8132f090ccc6bccb8ee9fb151_wannacry.exe
File created	C:\Windows\SysWOW64\config\systemprofile\AppData\Roaming\Microsoft\Windows\Cookies\WHAAHFRK.txt	2024-12-03_44737be8132f090ccc6bccb8ee9fb151_wannacry.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Roaming\Microsoft\Windows\Cookies\WHAAHFRK.txt	2024-12-03_44737be8132f090ccc6bccb8ee9fb151_wannacry.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	2024-12-03_44737be8132f090ccc6bccb8ee9fb151_wannacry.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-12-03_44737be8132f090ccc6bccb8ee9fb151_wannacry.exe
File created	C:\Windows\__tmp_rar_sfx_access_check_259436885	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	2024-12-03_44737be8132f090ccc6bccb8ee9fb151_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-12-03_44737be8132f090ccc6bccb8ee9fb151_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\Connections	2024-12-03_44737be8132f090ccc6bccb8ee9fb151_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-12-03_44737be8132f090ccc6bccb8ee9fb151_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-12-03_44737be8132f090ccc6bccb8ee9fb151_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B10DA52D-92D5-4B5C-8652-AAFA2C8C4B1B}\WpadNetworkName = "Network 3"	2024-12-03_44737be8132f090ccc6bccb8ee9fb151_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\52-a7-6d-aa-f2-ea	2024-12-03_44737be8132f090ccc6bccb8ee9fb151_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B10DA52D-92D5-4B5C-8652-AAFA2C8C4B1B}\52-a7-6d-aa-f2-ea	2024-12-03_44737be8132f090ccc6bccb8ee9fb151_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\52-a7-6d-aa-f2-ea\WpadDecision = "0"	2024-12-03_44737be8132f090ccc6bccb8ee9fb151_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-12-03_44737be8132f090ccc6bccb8ee9fb151_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-12-03_44737be8132f090ccc6bccb8ee9fb151_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-12-03_44737be8132f090ccc6bccb8ee9fb151_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-12-03_44737be8132f090ccc6bccb8ee9fb151_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00f9000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-12-03_44737be8132f090ccc6bccb8ee9fb151_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B10DA52D-92D5-4B5C-8652-AAFA2C8C4B1B}\WpadDecisionReason = "1"	2024-12-03_44737be8132f090ccc6bccb8ee9fb151_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B10DA52D-92D5-4B5C-8652-AAFA2C8C4B1B}\WpadDecision = "0"	2024-12-03_44737be8132f090ccc6bccb8ee9fb151_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\52-a7-6d-aa-f2-ea\WpadDecisionTime = e0be42687045db01	2024-12-03_44737be8132f090ccc6bccb8ee9fb151_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-12-03_44737be8132f090ccc6bccb8ee9fb151_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-12-03_44737be8132f090ccc6bccb8ee9fb151_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B10DA52D-92D5-4B5C-8652-AAFA2C8C4B1B}\WpadDecisionTime = e0be42687045db01	2024-12-03_44737be8132f090ccc6bccb8ee9fb151_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-12-03_44737be8132f090ccc6bccb8ee9fb151_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-12-03_44737be8132f090ccc6bccb8ee9fb151_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-12-03_44737be8132f090ccc6bccb8ee9fb151_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-12-03_44737be8132f090ccc6bccb8ee9fb151_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B10DA52D-92D5-4B5C-8652-AAFA2C8C4B1B}	2024-12-03_44737be8132f090ccc6bccb8ee9fb151_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\52-a7-6d-aa-f2-ea\WpadDecisionReason = "1"	2024-12-03_44737be8132f090ccc6bccb8ee9fb151_wannacry.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2832	tasksche.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1732 wrote to memory of 2832	1732	2024-12-03_44737be8132f090ccc6bccb8ee9fb151_wannacry.exe	32
PID 1732 wrote to memory of 2832	1732	2024-12-03_44737be8132f090ccc6bccb8ee9fb151_wannacry.exe	32
PID 1732 wrote to memory of 2832	1732	2024-12-03_44737be8132f090ccc6bccb8ee9fb151_wannacry.exe	32
PID 1732 wrote to memory of 2832	1732	2024-12-03_44737be8132f090ccc6bccb8ee9fb151_wannacry.exe	32
PID 1732 wrote to memory of 2832	1732	2024-12-03_44737be8132f090ccc6bccb8ee9fb151_wannacry.exe	32
PID 1732 wrote to memory of 2832	1732	2024-12-03_44737be8132f090ccc6bccb8ee9fb151_wannacry.exe	32
PID 1732 wrote to memory of 2832	1732	2024-12-03_44737be8132f090ccc6bccb8ee9fb151_wannacry.exe	32

C:\Users\Admin\AppData\Local\Temp\2024-12-03_44737be8132f090ccc6bccb8ee9fb151_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-03_44737be8132f090ccc6bccb8ee9fb151_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1732
- 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:2832

C:\Users\Admin\AppData\Local\Temp\2024-12-03_44737be8132f090ccc6bccb8ee9fb151_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-12-03_44737be8132f090ccc6bccb8ee9fb151_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2088

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

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Downloads

C:\WINDOWS\tasksche.exe

Filesize
2.0MB

MD5
62026b2faca396412df69415995b29a1

SHA1
9974078ee11ec90e390a3b17d79e0f159efa2972

SHA256
202d1bcdbd639000e37b871155e7471bc1eec9d5c87e355585fc1bbf4888913d

SHA512
84eb197fa511b9d8f58e53888927142463f1ae71470bf48fd5305b65ee0db74f823a7cda47c8e0c98d1e67d18465f8fd452ee69dc989bcea71119d5a6fd1ad5a

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