wannacry | 8d7d254700be152c7d6ca0492db3a2bc62c642ef3bf1a4171062eb64a47fb0eb

General

Target

2024-07-28_1078cfa46f9250f8b9c030b24dbe73bf_wannacry.exe
Size

5.0MB
MD5

1078cfa46f9250f8b9c030b24dbe73bf
SHA1

885891533ed5a0bfcf6a64762c8212f05b525eff
SHA256

8d7d254700be152c7d6ca0492db3a2bc62c642ef3bf1a4171062eb64a47fb0eb
SHA512

4196dbb1d0fb17c4a3c62666c32cef5b52a21e2be409ad5f49a250cf8fc1f5d465384c8641b440bca44cf3ac827deba3c3a51f5dca223c7eadb09151415c88b0
SSDEEP

49152:2nAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAARdhnvxJM0H9:yDqPoBhz1aRxcSUDk36SAEdhvxWa9

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3275) 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
2776	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 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	2024-07-28_1078cfa46f9250f8b9c030b24dbe73bf_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-07-28_1078cfa46f9250f8b9c030b24dbe73bf_wannacry.exe

System Location Discovery: System Language Discovery 1 TTPs 2 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	2024-07-28_1078cfa46f9250f8b9c030b24dbe73bf_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-07-28_1078cfa46f9250f8b9c030b24dbe73bf_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-07-28_1078cfa46f9250f8b9c030b24dbe73bf_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-07-28_1078cfa46f9250f8b9c030b24dbe73bf_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{0A73345C-0EE5-42AB-AC74-24145B799F6A}\WpadDecision = "0"	2024-07-28_1078cfa46f9250f8b9c030b24dbe73bf_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-07-28_1078cfa46f9250f8b9c030b24dbe73bf_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-07-28_1078cfa46f9250f8b9c030b24dbe73bf_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-07-28_1078cfa46f9250f8b9c030b24dbe73bf_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-07-28_1078cfa46f9250f8b9c030b24dbe73bf_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-07-28_1078cfa46f9250f8b9c030b24dbe73bf_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0081000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-07-28_1078cfa46f9250f8b9c030b24dbe73bf_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{0A73345C-0EE5-42AB-AC74-24145B799F6A}\WpadDecisionTime = 80516427d0e1da01	2024-07-28_1078cfa46f9250f8b9c030b24dbe73bf_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\1e-fd-53-ca-e5-b2	2024-07-28_1078cfa46f9250f8b9c030b24dbe73bf_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-07-28_1078cfa46f9250f8b9c030b24dbe73bf_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\1e-fd-53-ca-e5-b2\WpadDecisionReason = "1"	2024-07-28_1078cfa46f9250f8b9c030b24dbe73bf_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-07-28_1078cfa46f9250f8b9c030b24dbe73bf_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{0A73345C-0EE5-42AB-AC74-24145B799F6A}	2024-07-28_1078cfa46f9250f8b9c030b24dbe73bf_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{0A73345C-0EE5-42AB-AC74-24145B799F6A}\1e-fd-53-ca-e5-b2	2024-07-28_1078cfa46f9250f8b9c030b24dbe73bf_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\1e-fd-53-ca-e5-b2\WpadDecisionTime = 80516427d0e1da01	2024-07-28_1078cfa46f9250f8b9c030b24dbe73bf_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\1e-fd-53-ca-e5-b2\WpadDecision = "0"	2024-07-28_1078cfa46f9250f8b9c030b24dbe73bf_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-07-28_1078cfa46f9250f8b9c030b24dbe73bf_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-07-28_1078cfa46f9250f8b9c030b24dbe73bf_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-07-28_1078cfa46f9250f8b9c030b24dbe73bf_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{0A73345C-0EE5-42AB-AC74-24145B799F6A}\WpadDecisionReason = "1"	2024-07-28_1078cfa46f9250f8b9c030b24dbe73bf_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{0A73345C-0EE5-42AB-AC74-24145B799F6A}\WpadNetworkName = "Network 3"	2024-07-28_1078cfa46f9250f8b9c030b24dbe73bf_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-07-28_1078cfa46f9250f8b9c030b24dbe73bf_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-07-28_1078cfa46f9250f8b9c030b24dbe73bf_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-07-28_1078cfa46f9250f8b9c030b24dbe73bf_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2928
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2776

C:\Users\Admin\AppData\Local\Temp\2024-07-28_1078cfa46f9250f8b9c030b24dbe73bf_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-07-28_1078cfa46f9250f8b9c030b24dbe73bf_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2784

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

Loading Replay Monitor...

Downloads

C:\Windows\tasksche.exe

Filesize
3.4MB

MD5
74957d13dc6df9e917053d67adcbffb4

SHA1
a312339e0b9023b610d609163d77a1ee352e516a

SHA256
aee5e74ba8157434499508a02aea7f5808abbf82bdfc59d67513a3e660cb54c5

SHA512
cb1e9c3fee75fdce98d9c584b50499cd42921445c101151e0f6ee61a51a7f36188626f94b637a7dd81beb0184e5c0d64f71ca7ffe083e6d66bd27a61a671bda3

Download Submit

Analysis

Sharing