wannacry | 1170d37ec5100971fd0fca051d4bfb18544ae178f0e7b0ef47ef88b2e0fc4ddf

General

Target

2025-01-09_b284623d052f5b3972c1038c52b9ccd1_wannacry.exe
Size

3.6MB
MD5

b284623d052f5b3972c1038c52b9ccd1
SHA1

ae103c4f9bfcbbd5c552cb5b4b54c80c16576fe3
SHA256

1170d37ec5100971fd0fca051d4bfb18544ae178f0e7b0ef47ef88b2e0fc4ddf
SHA512

96ac6f0fbe07a09935c8ba4db0c332bb4707e48fa81486287ced2f2513b0161dd932769044d7cac2794d04aa8e816dd60a950e0fd16c42f6a8b3a289983026e2
SSDEEP

98304:yDqPoBhz1aRxcSUDkC6SAEdhvxWa9P593R8yAVp2HI:yDqPe1CxcxkCZAEUadzR8yc4HI

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 (3256) 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
2600	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	2025-01-09_b284623d052f5b3972c1038c52b9ccd1_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2025-01-09_b284623d052f5b3972c1038c52b9ccd1_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	2025-01-09_b284623d052f5b3972c1038c52b9ccd1_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-09_b284623d052f5b3972c1038c52b9ccd1_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2025-01-09_b284623d052f5b3972c1038c52b9ccd1_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00b3000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-09_b284623d052f5b3972c1038c52b9ccd1_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-09_b284623d052f5b3972c1038c52b9ccd1_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2025-01-09_b284623d052f5b3972c1038c52b9ccd1_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2025-01-09_b284623d052f5b3972c1038c52b9ccd1_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-09_b284623d052f5b3972c1038c52b9ccd1_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2025-01-09_b284623d052f5b3972c1038c52b9ccd1_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A13F3799-B416-49DE-B6F3-8D5AB3B07A99}\WpadNetworkName = "Network 3"	2025-01-09_b284623d052f5b3972c1038c52b9ccd1_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\aa-fa-dc-19-58-00	2025-01-09_b284623d052f5b3972c1038c52b9ccd1_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A13F3799-B416-49DE-B6F3-8D5AB3B07A99}\aa-fa-dc-19-58-00	2025-01-09_b284623d052f5b3972c1038c52b9ccd1_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2025-01-09_b284623d052f5b3972c1038c52b9ccd1_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2025-01-09_b284623d052f5b3972c1038c52b9ccd1_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\aa-fa-dc-19-58-00\WpadDecisionReason = "1"	2025-01-09_b284623d052f5b3972c1038c52b9ccd1_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\aa-fa-dc-19-58-00\WpadDecision = "0"	2025-01-09_b284623d052f5b3972c1038c52b9ccd1_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2025-01-09_b284623d052f5b3972c1038c52b9ccd1_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A13F3799-B416-49DE-B6F3-8D5AB3B07A99}\WpadDecisionReason = "1"	2025-01-09_b284623d052f5b3972c1038c52b9ccd1_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2025-01-09_b284623d052f5b3972c1038c52b9ccd1_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2025-01-09_b284623d052f5b3972c1038c52b9ccd1_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A13F3799-B416-49DE-B6F3-8D5AB3B07A99}	2025-01-09_b284623d052f5b3972c1038c52b9ccd1_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A13F3799-B416-49DE-B6F3-8D5AB3B07A99}\WpadDecisionTime = b06a6511d962db01	2025-01-09_b284623d052f5b3972c1038c52b9ccd1_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A13F3799-B416-49DE-B6F3-8D5AB3B07A99}\WpadDecision = "0"	2025-01-09_b284623d052f5b3972c1038c52b9ccd1_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\aa-fa-dc-19-58-00\WpadDecisionTime = b06a6511d962db01	2025-01-09_b284623d052f5b3972c1038c52b9ccd1_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2025-01-09_b284623d052f5b3972c1038c52b9ccd1_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2025-01-09_b284623d052f5b3972c1038c52b9ccd1_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2025-01-09_b284623d052f5b3972c1038c52b9ccd1_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-09_b284623d052f5b3972c1038c52b9ccd1_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2260
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2600

C:\Users\Admin\AppData\Local\Temp\2025-01-09_b284623d052f5b3972c1038c52b9ccd1_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2025-01-09_b284623d052f5b3972c1038c52b9ccd1_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2688

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
0468ba458c429bf82bd4e04dbec6a88e

SHA1
c81d14ad692feac024102b2fc9a0c79306caf1bb

SHA256
44a66517019a809a187ae8ed81709d071894146e9979d8f391c495febdbe93f2

SHA512
682f14cdfd0902a94603a2b2ee4b670dcdd1f79480809a1cb5b5a82cfd743622940c245288018ba212fb6e0fbfcec3dcbf9289fd8acd8b948c6b545e43c57f3b

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Analysis

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