wannacry | 8e3e4515e3d0bb5e09da96909f41db890e366b7a7e31343a9d4e809c45fe9adf

General

Target

2024-09-27_1a5860aaf8a416dceba4ab6a7ba15be5_wannacry.exe
Size

3.6MB
MD5

1a5860aaf8a416dceba4ab6a7ba15be5
SHA1

0c2ad837dee0eee3aa40b88b2edc2e3a2a9594d4
SHA256

8e3e4515e3d0bb5e09da96909f41db890e366b7a7e31343a9d4e809c45fe9adf
SHA512

88058c76ea67b338b00b62051b3c6a15c3f6f9a5f51b5195d6b835643b2848efaa859f90ad04c921eb2a090666e9641673147db5d8e879631d27bfdf19fed80f
SSDEEP

24576:2bLgddQhfdmMSirYbcMNgef0QeQjG/D8kAk+gdhA:2nAQqMSPbcBVQej/ogdh

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3339) 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
2472	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	2024-09-27_1a5860aaf8a416dceba4ab6a7ba15be5_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-09-27_1a5860aaf8a416dceba4ab6a7ba15be5_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	2024-09-27_1a5860aaf8a416dceba4ab6a7ba15be5_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-27_1a5860aaf8a416dceba4ab6a7ba15be5_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00b0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-27_1a5860aaf8a416dceba4ab6a7ba15be5_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{FDFD29B5-9E0A-4847-81D9-C0586DB674C9}\WpadDecision = "0"	2024-09-27_1a5860aaf8a416dceba4ab6a7ba15be5_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{FDFD29B5-9E0A-4847-81D9-C0586DB674C9}\WpadNetworkName = "Network 3"	2024-09-27_1a5860aaf8a416dceba4ab6a7ba15be5_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\22-20-4e-10-47-26	2024-09-27_1a5860aaf8a416dceba4ab6a7ba15be5_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\22-20-4e-10-47-26\WpadDecisionTime = 705cc235fd10db01	2024-09-27_1a5860aaf8a416dceba4ab6a7ba15be5_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\22-20-4e-10-47-26\WpadDecision = "0"	2024-09-27_1a5860aaf8a416dceba4ab6a7ba15be5_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-09-27_1a5860aaf8a416dceba4ab6a7ba15be5_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-27_1a5860aaf8a416dceba4ab6a7ba15be5_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-27_1a5860aaf8a416dceba4ab6a7ba15be5_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-09-27_1a5860aaf8a416dceba4ab6a7ba15be5_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-09-27_1a5860aaf8a416dceba4ab6a7ba15be5_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-09-27_1a5860aaf8a416dceba4ab6a7ba15be5_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{FDFD29B5-9E0A-4847-81D9-C0586DB674C9}\22-20-4e-10-47-26	2024-09-27_1a5860aaf8a416dceba4ab6a7ba15be5_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-09-27_1a5860aaf8a416dceba4ab6a7ba15be5_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-09-27_1a5860aaf8a416dceba4ab6a7ba15be5_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-09-27_1a5860aaf8a416dceba4ab6a7ba15be5_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-09-27_1a5860aaf8a416dceba4ab6a7ba15be5_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{FDFD29B5-9E0A-4847-81D9-C0586DB674C9}\WpadDecisionReason = "1"	2024-09-27_1a5860aaf8a416dceba4ab6a7ba15be5_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\22-20-4e-10-47-26\WpadDecisionReason = "1"	2024-09-27_1a5860aaf8a416dceba4ab6a7ba15be5_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-09-27_1a5860aaf8a416dceba4ab6a7ba15be5_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-09-27_1a5860aaf8a416dceba4ab6a7ba15be5_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-09-27_1a5860aaf8a416dceba4ab6a7ba15be5_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{FDFD29B5-9E0A-4847-81D9-C0586DB674C9}	2024-09-27_1a5860aaf8a416dceba4ab6a7ba15be5_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{FDFD29B5-9E0A-4847-81D9-C0586DB674C9}\WpadDecisionTime = 705cc235fd10db01	2024-09-27_1a5860aaf8a416dceba4ab6a7ba15be5_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-09-27_1a5860aaf8a416dceba4ab6a7ba15be5_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-27_1a5860aaf8a416dceba4ab6a7ba15be5_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2136
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2472

C:\Users\Admin\AppData\Local\Temp\2024-09-27_1a5860aaf8a416dceba4ab6a7ba15be5_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-09-27_1a5860aaf8a416dceba4ab6a7ba15be5_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:1608

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

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Downloads

C:\Windows\tasksche.exe

Filesize
3.4MB

MD5
deaa2f62a68d12a3e9842ae2b5641c03

SHA1
59e6a69888aac87a583b3f2c212df36aabc99907

SHA256
c0cba8900a4ce6bdf7b070be9d1768c7729654b9d1971a6ca57dfd7e7530fd2e

SHA512
17ce62dd1143db984f61395e5589c13f5a64854e52fd1f8de24b8fb4b1d4cdfba40f6db6c485f35b2ecba924a528de745a307b4a9867a5be7bebc97974e0b3a4

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Analysis

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