wannacry | c2272bf0ea6f578a9111041a1484ac742d25b1bb6612ede7e1692b8c61f0e6a0

General

Target

2023-08-25_f9be278c6ff2adfda2434d9570335020_wannacry_JC.exe
Size

5.0MB
MD5

f9be278c6ff2adfda2434d9570335020
SHA1

86e5f6fd44d118d8367040645f14f6c8afc364a0
SHA256

c2272bf0ea6f578a9111041a1484ac742d25b1bb6612ede7e1692b8c61f0e6a0
SHA512

ee16067df9876c496f4edc639d49f47a783c5e12ce30ecf50a7c0aff636bae6f07c32cb1196de04f3d6b7eac09fa5f8ccdf6c0c4e6874effe5b6ad150fee5e1c
SSDEEP

49152:2nAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAARdhnvQEau3R:yDqPoBhz1aRxcSUDk36SAEdhvt3R

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3277) 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
2724	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	2023-08-25_f9be278c6ff2adfda2434d9570335020_wannacry_JC.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2023-08-25_f9be278c6ff2adfda2434d9570335020_wannacry_JC.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2023-08-25_f9be278c6ff2adfda2434d9570335020_wannacry_JC.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2023-08-25_f9be278c6ff2adfda2434d9570335020_wannacry_JC.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2023-08-25_f9be278c6ff2adfda2434d9570335020_wannacry_JC.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f000b000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2023-08-25_f9be278c6ff2adfda2434d9570335020_wannacry_JC.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\6a-6c-bc-d3-f6-5c	2023-08-25_f9be278c6ff2adfda2434d9570335020_wannacry_JC.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{09E5DC1C-A662-4195-B16C-149568543740}\6a-6c-bc-d3-f6-5c	2023-08-25_f9be278c6ff2adfda2434d9570335020_wannacry_JC.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2023-08-25_f9be278c6ff2adfda2434d9570335020_wannacry_JC.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2023-08-25_f9be278c6ff2adfda2434d9570335020_wannacry_JC.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2023-08-25_f9be278c6ff2adfda2434d9570335020_wannacry_JC.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{09E5DC1C-A662-4195-B16C-149568543740}\WpadDecisionReason = "1"	2023-08-25_f9be278c6ff2adfda2434d9570335020_wannacry_JC.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\6a-6c-bc-d3-f6-5c\WpadDecision = "0"	2023-08-25_f9be278c6ff2adfda2434d9570335020_wannacry_JC.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2023-08-25_f9be278c6ff2adfda2434d9570335020_wannacry_JC.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2023-08-25_f9be278c6ff2adfda2434d9570335020_wannacry_JC.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2023-08-25_f9be278c6ff2adfda2434d9570335020_wannacry_JC.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{09E5DC1C-A662-4195-B16C-149568543740}	2023-08-25_f9be278c6ff2adfda2434d9570335020_wannacry_JC.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{09E5DC1C-A662-4195-B16C-149568543740}\WpadNetworkName = "Network 2"	2023-08-25_f9be278c6ff2adfda2434d9570335020_wannacry_JC.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\6a-6c-bc-d3-f6-5c\WpadDecisionReason = "1"	2023-08-25_f9be278c6ff2adfda2434d9570335020_wannacry_JC.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2023-08-25_f9be278c6ff2adfda2434d9570335020_wannacry_JC.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2023-08-25_f9be278c6ff2adfda2434d9570335020_wannacry_JC.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2023-08-25_f9be278c6ff2adfda2434d9570335020_wannacry_JC.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2023-08-25_f9be278c6ff2adfda2434d9570335020_wannacry_JC.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{09E5DC1C-A662-4195-B16C-149568543740}\WpadDecisionTime = 509bfd7657fed901	2023-08-25_f9be278c6ff2adfda2434d9570335020_wannacry_JC.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{09E5DC1C-A662-4195-B16C-149568543740}\WpadDecision = "0"	2023-08-25_f9be278c6ff2adfda2434d9570335020_wannacry_JC.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\6a-6c-bc-d3-f6-5c\WpadDecisionTime = 509bfd7657fed901	2023-08-25_f9be278c6ff2adfda2434d9570335020_wannacry_JC.exe

C:\Users\Admin\AppData\Local\Temp\2023-08-25_f9be278c6ff2adfda2434d9570335020_wannacry_JC.exe
"C:\Users\Admin\AppData\Local\Temp\2023-08-25_f9be278c6ff2adfda2434d9570335020_wannacry_JC.exe"
1⤵
- Drops file in Windows directory
PID:1448
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2724

C:\Users\Admin\AppData\Local\Temp\2023-08-25_f9be278c6ff2adfda2434d9570335020_wannacry_JC.exe
C:\Users\Admin\AppData\Local\Temp\2023-08-25_f9be278c6ff2adfda2434d9570335020_wannacry_JC.exe -m security
1⤵
- Drops file in System32 directory
- 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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\tasksche.exe

Filesize
3.4MB

MD5
c121da0be4a9fbf6ad7ddd323ba7f8a8

SHA1
edce8c91c8566ee6bc856e2fb305edd5b65a0729

SHA256
ffc153e2ee9203b91e5184910aa75ab5818c8a0a622c97a3993479f6501cf95b

SHA512
09c4a331945b7f2b30d5c029c24179635494d43bbdf043fdcbba9a87eac1df5ce919842fb7a67f3158cf08b584137dfda457cf17540d6069c2f7409e3626ce3f

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