wannacry | 1280ebac45076ce90f5039ffa1c35a49b81d5772bf2169714a2766a635eb1f7d

General

Target

2025-01-09_2c79989d98f98fa44e6708d38a431074_wannacry.exe
Size

3.6MB
MD5

2c79989d98f98fa44e6708d38a431074
SHA1

7e940aec8b998b685c01496b955d1a60207b8b3e
SHA256

1280ebac45076ce90f5039ffa1c35a49b81d5772bf2169714a2766a635eb1f7d
SHA512

743b1ed6f579c99c9db023d4c63f752c8beaec5ac090ddf381aaf9b0e5f812ac9679115eb4b77b0629e4c542d9e93a97601bc467e91d1525ee0474ac8655b4dd
SSDEEP

12288:GvbLgPlu+QhM25NVErCA4z2g6rTcbckPU82900Ve7zw+K+D:2bLgddQhFMSirYbcMNgef0

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 (2191) 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
1952	tasksche.exe

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_2c79989d98f98fa44e6708d38a431074_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2025-01-09_2c79989d98f98fa44e6708d38a431074_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_2c79989d98f98fa44e6708d38a431074_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-09_2c79989d98f98fa44e6708d38a431074_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E7A3206B-B098-4D4F-86F5-A176114A80BF}\a6-11-c3-90-b8-a1	2025-01-09_2c79989d98f98fa44e6708d38a431074_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\a6-11-c3-90-b8-a1\WpadDecisionReason = "1"	2025-01-09_2c79989d98f98fa44e6708d38a431074_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-09_2c79989d98f98fa44e6708d38a431074_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2025-01-09_2c79989d98f98fa44e6708d38a431074_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00af000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-09_2c79989d98f98fa44e6708d38a431074_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E7A3206B-B098-4D4F-86F5-A176114A80BF}\WpadDecision = "0"	2025-01-09_2c79989d98f98fa44e6708d38a431074_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2025-01-09_2c79989d98f98fa44e6708d38a431074_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\a6-11-c3-90-b8-a1\WpadDecisionTime = 20c61aebd862db01	2025-01-09_2c79989d98f98fa44e6708d38a431074_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2025-01-09_2c79989d98f98fa44e6708d38a431074_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2025-01-09_2c79989d98f98fa44e6708d38a431074_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2025-01-09_2c79989d98f98fa44e6708d38a431074_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E7A3206B-B098-4D4F-86F5-A176114A80BF}\WpadNetworkName = "Network 3"	2025-01-09_2c79989d98f98fa44e6708d38a431074_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2025-01-09_2c79989d98f98fa44e6708d38a431074_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2025-01-09_2c79989d98f98fa44e6708d38a431074_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-09_2c79989d98f98fa44e6708d38a431074_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2025-01-09_2c79989d98f98fa44e6708d38a431074_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\a6-11-c3-90-b8-a1\WpadDecision = "0"	2025-01-09_2c79989d98f98fa44e6708d38a431074_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E7A3206B-B098-4D4F-86F5-A176114A80BF}\WpadDecisionReason = "1"	2025-01-09_2c79989d98f98fa44e6708d38a431074_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E7A3206B-B098-4D4F-86F5-A176114A80BF}\WpadDecisionTime = 20c61aebd862db01	2025-01-09_2c79989d98f98fa44e6708d38a431074_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\a6-11-c3-90-b8-a1	2025-01-09_2c79989d98f98fa44e6708d38a431074_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2025-01-09_2c79989d98f98fa44e6708d38a431074_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2025-01-09_2c79989d98f98fa44e6708d38a431074_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2025-01-09_2c79989d98f98fa44e6708d38a431074_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E7A3206B-B098-4D4F-86F5-A176114A80BF}	2025-01-09_2c79989d98f98fa44e6708d38a431074_wannacry.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2572 wrote to memory of 1952	2572	2025-01-09_2c79989d98f98fa44e6708d38a431074_wannacry.exe	33
PID 2572 wrote to memory of 1952	2572	2025-01-09_2c79989d98f98fa44e6708d38a431074_wannacry.exe	33
PID 2572 wrote to memory of 1952	2572	2025-01-09_2c79989d98f98fa44e6708d38a431074_wannacry.exe	33
PID 2572 wrote to memory of 1952	2572	2025-01-09_2c79989d98f98fa44e6708d38a431074_wannacry.exe	33

C:\Users\Admin\AppData\Local\Temp\2025-01-09_2c79989d98f98fa44e6708d38a431074_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-09_2c79989d98f98fa44e6708d38a431074_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2572
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:1952

C:\Users\Admin\AppData\Local\Temp\2025-01-09_2c79989d98f98fa44e6708d38a431074_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2025-01-09_2c79989d98f98fa44e6708d38a431074_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2728

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Network Service Discovery

1

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
a80ebdcb178640521e2667d468bdbf95

SHA1
7b1b0debaa4418c2fef9c9d0c666e39c60a2e68e

SHA256
2d5b10fbf473c7b7110d53a7aa53bb7418e165aaa7de06e05cc6580da962a477

SHA512
b6de430507909868cc9f2e881cb98ba22ec367a65c52aab067321c7beb364b48703a75ae65a63c4f19a0dae8395259f869badd3ae251b28b576b1bd5a3bb0462

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Analysis

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