wannacry | 6e3111878472c2c6380d1625ac84af9cde7c598bd3eda53fbad9d4022012d60a

General

Target

2024-09-24_a8d7536f6de752058aaa0aebd72e228d_wannacry.exe
Size

5.0MB
MD5

a8d7536f6de752058aaa0aebd72e228d
SHA1

76a5c61ddeccda5d1fb11c4e7d08bfa939bf34bc
SHA256

6e3111878472c2c6380d1625ac84af9cde7c598bd3eda53fbad9d4022012d60a
SHA512

e48f513732660032579b54893bb878114d3ee970ee09de71d2213bbb3baa139d9a9d0125d9f7683d41a0367d8faead2f56894b3f9d5a0267fa86e82bd7a397ed
SSDEEP

98304:XDmPoBhuRxcSUDk36SAEdhvxWa9P593R8yAVp2:XDmPTxcxk3ZAEUadzR8yc4

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3238) 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
2300	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	2024-09-24_a8d7536f6de752058aaa0aebd72e228d_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-09-24_a8d7536f6de752058aaa0aebd72e228d_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	2024-09-24_a8d7536f6de752058aaa0aebd72e228d_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-24_a8d7536f6de752058aaa0aebd72e228d_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-09-24_a8d7536f6de752058aaa0aebd72e228d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-09-24_a8d7536f6de752058aaa0aebd72e228d_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-09-24_a8d7536f6de752058aaa0aebd72e228d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-09-24_a8d7536f6de752058aaa0aebd72e228d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{978A0C1C-F72B-41D5-94DA-3D54665318D8}\WpadDecisionReason = "1"	2024-09-24_a8d7536f6de752058aaa0aebd72e228d_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{978A0C1C-F72B-41D5-94DA-3D54665318D8}\WpadDecisionTime = d04fe30f660edb01	2024-09-24_a8d7536f6de752058aaa0aebd72e228d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{978A0C1C-F72B-41D5-94DA-3D54665318D8}\WpadDecision = "0"	2024-09-24_a8d7536f6de752058aaa0aebd72e228d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-09-24_a8d7536f6de752058aaa0aebd72e228d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\42-f5-a9-2f-99-d2\WpadDecision = "0"	2024-09-24_a8d7536f6de752058aaa0aebd72e228d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-09-24_a8d7536f6de752058aaa0aebd72e228d_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00c3000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-24_a8d7536f6de752058aaa0aebd72e228d_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{978A0C1C-F72B-41D5-94DA-3D54665318D8}\WpadNetworkName = "Network 3"	2024-09-24_a8d7536f6de752058aaa0aebd72e228d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\42-f5-a9-2f-99-d2	2024-09-24_a8d7536f6de752058aaa0aebd72e228d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{978A0C1C-F72B-41D5-94DA-3D54665318D8}\42-f5-a9-2f-99-d2	2024-09-24_a8d7536f6de752058aaa0aebd72e228d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\42-f5-a9-2f-99-d2\WpadDecisionReason = "1"	2024-09-24_a8d7536f6de752058aaa0aebd72e228d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-09-24_a8d7536f6de752058aaa0aebd72e228d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{978A0C1C-F72B-41D5-94DA-3D54665318D8}	2024-09-24_a8d7536f6de752058aaa0aebd72e228d_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-24_a8d7536f6de752058aaa0aebd72e228d_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-24_a8d7536f6de752058aaa0aebd72e228d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-09-24_a8d7536f6de752058aaa0aebd72e228d_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-09-24_a8d7536f6de752058aaa0aebd72e228d_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-09-24_a8d7536f6de752058aaa0aebd72e228d_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\42-f5-a9-2f-99-d2\WpadDecisionTime = d04fe30f660edb01	2024-09-24_a8d7536f6de752058aaa0aebd72e228d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-09-24_a8d7536f6de752058aaa0aebd72e228d_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-09-24_a8d7536f6de752058aaa0aebd72e228d_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-24_a8d7536f6de752058aaa0aebd72e228d_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2724
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2300

C:\Users\Admin\AppData\Local\Temp\2024-09-24_a8d7536f6de752058aaa0aebd72e228d_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-09-24_a8d7536f6de752058aaa0aebd72e228d_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2616

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
6bcb8751c0f18f9fda63465ee1a1d035

SHA1
03c968b9311596eda82b29b4bc00e4edebabe77d

SHA256
73d1b5695ec06c61561ed1f45e7692aec4f78def980120233a81622b3a62f390

SHA512
4122abb6f46aad56e1da8a4969b5a6193bd63852f02664060ffca352e65976afd13296c84bb7bf603abdcfba1b0ff3f4da0e0b62cb6fd092b08aaecee4934dc3

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Analysis

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