wannacry | 48be6cada9c245e057d2a09ba2ca1d193d4e822d46a7549180c61241106cb934

General

Target

2024-12-19_935ae353d2f898a809fdd46a4b53c0ab_wannacry.exe
Size

5.0MB
MD5

935ae353d2f898a809fdd46a4b53c0ab
SHA1

629ff5884075ff1da7f5cf0b5c9590160724c446
SHA256

48be6cada9c245e057d2a09ba2ca1d193d4e822d46a7549180c61241106cb934
SHA512

d57bdb6fda3d6edd773755b2513c31c246adabf063eaebbe1cfe3b45301dcb9af333018a05605cb319312e5c644be2f2f886b8395a12c3c1c022362e6f355665
SSDEEP

6144:eE9l9ynqIYVTH5DgSgNajldktM0XXrCIagQhMV9qbBLIwYSv3AiiVjAqZfAgbJ3S:eebLgmluCtgQhMbaIuAvVLJAmd3A

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 (3237) 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
2256	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 created	C:\Windows\SysWOW64\config\systemprofile\AppData\Roaming\Microsoft\Windows\Cookies\8C1TAYD5.txt	2024-12-19_935ae353d2f898a809fdd46a4b53c0ab_wannacry.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Roaming\Microsoft\Windows\Cookies\8C1TAYD5.txt	2024-12-19_935ae353d2f898a809fdd46a4b53c0ab_wannacry.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	2024-12-19_935ae353d2f898a809fdd46a4b53c0ab_wannacry.exe
File created	C:\Windows\SysWOW64\config\systemprofile\AppData\Roaming\Microsoft\Windows\Cookies\2CKO2HQY.txt	2024-12-19_935ae353d2f898a809fdd46a4b53c0ab_wannacry.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Roaming\Microsoft\Windows\Cookies\2CKO2HQY.txt	2024-12-19_935ae353d2f898a809fdd46a4b53c0ab_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-12-19_935ae353d2f898a809fdd46a4b53c0ab_wannacry.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2872	2256	WerFault.exe	32

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	2024-12-19_935ae353d2f898a809fdd46a4b53c0ab_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-12-19_935ae353d2f898a809fdd46a4b53c0ab_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\{64D91AE0-125C-4A84-9914-B72DB76F209C}\WpadDecision = "0"	2024-12-19_935ae353d2f898a809fdd46a4b53c0ab_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-12-19_935ae353d2f898a809fdd46a4b53c0ab_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-12-19_935ae353d2f898a809fdd46a4b53c0ab_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-12-19_935ae353d2f898a809fdd46a4b53c0ab_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00ad000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-12-19_935ae353d2f898a809fdd46a4b53c0ab_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{64D91AE0-125C-4A84-9914-B72DB76F209C}	2024-12-19_935ae353d2f898a809fdd46a4b53c0ab_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{64D91AE0-125C-4A84-9914-B72DB76F209C}\WpadDecisionTime = b0562efa1452db01	2024-12-19_935ae353d2f898a809fdd46a4b53c0ab_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{64D91AE0-125C-4A84-9914-B72DB76F209C}\16-5b-1c-ed-d1-27	2024-12-19_935ae353d2f898a809fdd46a4b53c0ab_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\16-5b-1c-ed-d1-27\WpadDecisionTime = b0562efa1452db01	2024-12-19_935ae353d2f898a809fdd46a4b53c0ab_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-12-19_935ae353d2f898a809fdd46a4b53c0ab_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-12-19_935ae353d2f898a809fdd46a4b53c0ab_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-12-19_935ae353d2f898a809fdd46a4b53c0ab_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{64D91AE0-125C-4A84-9914-B72DB76F209C}\WpadDecisionReason = "1"	2024-12-19_935ae353d2f898a809fdd46a4b53c0ab_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{64D91AE0-125C-4A84-9914-B72DB76F209C}\WpadNetworkName = "Network 3"	2024-12-19_935ae353d2f898a809fdd46a4b53c0ab_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\16-5b-1c-ed-d1-27\WpadDecisionReason = "1"	2024-12-19_935ae353d2f898a809fdd46a4b53c0ab_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-12-19_935ae353d2f898a809fdd46a4b53c0ab_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-12-19_935ae353d2f898a809fdd46a4b53c0ab_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-12-19_935ae353d2f898a809fdd46a4b53c0ab_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-12-19_935ae353d2f898a809fdd46a4b53c0ab_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\16-5b-1c-ed-d1-27	2024-12-19_935ae353d2f898a809fdd46a4b53c0ab_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\16-5b-1c-ed-d1-27\WpadDecision = "0"	2024-12-19_935ae353d2f898a809fdd46a4b53c0ab_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-12-19_935ae353d2f898a809fdd46a4b53c0ab_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-12-19_935ae353d2f898a809fdd46a4b53c0ab_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-12-19_935ae353d2f898a809fdd46a4b53c0ab_wannacry.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1508 wrote to memory of 2256	1508	2024-12-19_935ae353d2f898a809fdd46a4b53c0ab_wannacry.exe	32
PID 1508 wrote to memory of 2256	1508	2024-12-19_935ae353d2f898a809fdd46a4b53c0ab_wannacry.exe	32
PID 1508 wrote to memory of 2256	1508	2024-12-19_935ae353d2f898a809fdd46a4b53c0ab_wannacry.exe	32
PID 1508 wrote to memory of 2256	1508	2024-12-19_935ae353d2f898a809fdd46a4b53c0ab_wannacry.exe	32
PID 2256 wrote to memory of 2872	2256	tasksche.exe	33
PID 2256 wrote to memory of 2872	2256	tasksche.exe	33
PID 2256 wrote to memory of 2872	2256	tasksche.exe	33
PID 2256 wrote to memory of 2872	2256	tasksche.exe	33

C:\Users\Admin\AppData\Local\Temp\2024-12-19_935ae353d2f898a809fdd46a4b53c0ab_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-19_935ae353d2f898a809fdd46a4b53c0ab_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1508
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2256
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2256 -s 36
    3⤵
    - Program crash
    PID:2872

C:\Users\Admin\AppData\Local\Temp\2024-12-19_935ae353d2f898a809fdd46a4b53c0ab_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-12-19_935ae353d2f898a809fdd46a4b53c0ab_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
2.0MB

MD5
d96d2b632caa0daeaf3dcf7adde853c5

SHA1
387470e1ef47acdfc8f3d553cadf94f59880346a

SHA256
ca9b1d16046c426c99ab759c7d8c109e3b6b631cbbeb6ae60a78ea21e60bb90d

SHA512
df84732aa82b1edfef67c5de50dec58c5fb25df47906b849928cfa11c301d4a1fc02b6aafd51189c7553e5caabe0143dd07cc3ddc42dfd4a569ff1038fce5524

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