wannacry | 0b3ca341ddbd0738897f19f85a6881c5edb04cb78f5eedfa23f78459bd6352db

General

Target

2024-08-18_77abd528f8b42d7af37582450d508bbd_wannacry.exe
Size

3.6MB
MD5

77abd528f8b42d7af37582450d508bbd
SHA1

4c8aee6d8a8420d06fb243ebe345a5bebfdbc550
SHA256

0b3ca341ddbd0738897f19f85a6881c5edb04cb78f5eedfa23f78459bd6352db
SHA512

eac563d6015bf9f9795409853bf3d8bff5e0ad7279136c2235dc1490cdec1a6a730b72b3bfaa4cbfbaed8c7de3d586867138cd6ad27dfa8ec3ee0db75f8f1af5
SSDEEP

98304:XDqPoBz7aRxcSUDk36SAEdhvxWa9P593R8yAVp2HY:XDqPGCxcxk3ZAEUadzR8yc4HY

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3213) 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
2940	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	2024-08-18_77abd528f8b42d7af37582450d508bbd_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-08-18_77abd528f8b42d7af37582450d508bbd_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	2024-08-18_77abd528f8b42d7af37582450d508bbd_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-08-18_77abd528f8b42d7af37582450d508bbd_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-08-18_77abd528f8b42d7af37582450d508bbd_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-08-18_77abd528f8b42d7af37582450d508bbd_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-08-18_77abd528f8b42d7af37582450d508bbd_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-08-18_77abd528f8b42d7af37582450d508bbd_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-08-18_77abd528f8b42d7af37582450d508bbd_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-08-18_77abd528f8b42d7af37582450d508bbd_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-08-18_77abd528f8b42d7af37582450d508bbd_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-08-18_77abd528f8b42d7af37582450d508bbd_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-08-18_77abd528f8b42d7af37582450d508bbd_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{F494612F-F088-4733-A8E5-CB4951293F18}	2024-08-18_77abd528f8b42d7af37582450d508bbd_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{F494612F-F088-4733-A8E5-CB4951293F18}\WpadNetworkName = "Network 3"	2024-08-18_77abd528f8b42d7af37582450d508bbd_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-08-18_77abd528f8b42d7af37582450d508bbd_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{F494612F-F088-4733-A8E5-CB4951293F18}\WpadDecision = "0"	2024-08-18_77abd528f8b42d7af37582450d508bbd_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\de-33-ee-9e-6d-9c\WpadDecisionReason = "1"	2024-08-18_77abd528f8b42d7af37582450d508bbd_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-08-18_77abd528f8b42d7af37582450d508bbd_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-08-18_77abd528f8b42d7af37582450d508bbd_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f006d000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-08-18_77abd528f8b42d7af37582450d508bbd_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{F494612F-F088-4733-A8E5-CB4951293F18}\WpadDecisionReason = "1"	2024-08-18_77abd528f8b42d7af37582450d508bbd_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{F494612F-F088-4733-A8E5-CB4951293F18}\WpadDecisionTime = b03876482bf1da01	2024-08-18_77abd528f8b42d7af37582450d508bbd_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\de-33-ee-9e-6d-9c	2024-08-18_77abd528f8b42d7af37582450d508bbd_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{F494612F-F088-4733-A8E5-CB4951293F18}\de-33-ee-9e-6d-9c	2024-08-18_77abd528f8b42d7af37582450d508bbd_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\de-33-ee-9e-6d-9c\WpadDecisionTime = b03876482bf1da01	2024-08-18_77abd528f8b42d7af37582450d508bbd_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-08-18_77abd528f8b42d7af37582450d508bbd_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\de-33-ee-9e-6d-9c\WpadDecision = "0"	2024-08-18_77abd528f8b42d7af37582450d508bbd_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-08-18_77abd528f8b42d7af37582450d508bbd_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-08-18_77abd528f8b42d7af37582450d508bbd_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:712
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2940

C:\Users\Admin\AppData\Local\Temp\2024-08-18_77abd528f8b42d7af37582450d508bbd_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-08-18_77abd528f8b42d7af37582450d508bbd_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2172

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
3.4MB

MD5
6acefe8ac45268375b73d87404088e19

SHA1
3eb6fe933e76a0616cb7a757d5f5049734199527

SHA256
94be05ef50bd9dfff19c396f888c9d8f40790dae05b776c7e61578ba3ba18624

SHA512
5dfe3ebb82740102500f0c6e3549c5d1e2f34c32349f06f0005299d71923b041b0b383df49f6dd9a03b6a4f5885f088192f398b7a5b19cc3541fad7bd2f45812

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Analysis

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