wannacry | 0a44e0c3efc5625ca990fe6f607404a6cfa560db6a7cb100aea64eea74d95c92

General

Target

2025-03-29_d45384e349f28382e3b7d9669d563e0b_wannacry.exe
Size

3.6MB
MD5

d45384e349f28382e3b7d9669d563e0b
SHA1

42cf9543851c4a2969a1cde574bc8adcad0e4b4d
SHA256

0a44e0c3efc5625ca990fe6f607404a6cfa560db6a7cb100aea64eea74d95c92
SHA512

d8f43c9835a6b96e9ecd135d1fc05062ae38af867c2303941b3d81f0962cae660933c39531b3e9e55d631df52d4c4d2410319c43a61dc5d19923acde81e6f00d
SSDEEP

24576:2bLgddQhfdmMSirYbcMNgef0QeQPD8kIqRYoAdNLKz6626:2nAQqMSPbcBVQeK1INR

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 (3246) 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
1996	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	2025-03-29_d45384e349f28382e3b7d9669d563e0b_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2025-03-29_d45384e349f28382e3b7d9669d563e0b_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	2025-03-29_d45384e349f28382e3b7d9669d563e0b_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-03-29_d45384e349f28382e3b7d9669d563e0b_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B399D80D-B323-4625-BCC4-AA785318AF66}\WpadDecision = "0"	2025-03-29_d45384e349f28382e3b7d9669d563e0b_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\62-86-e9-9c-c5-4e\WpadDecisionReason = "1"	2025-03-29_d45384e349f28382e3b7d9669d563e0b_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\62-86-e9-9c-c5-4e\WpadDecision = "0"	2025-03-29_d45384e349f28382e3b7d9669d563e0b_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-03-29_d45384e349f28382e3b7d9669d563e0b_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2025-03-29_d45384e349f28382e3b7d9669d563e0b_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2025-03-29_d45384e349f28382e3b7d9669d563e0b_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2025-03-29_d45384e349f28382e3b7d9669d563e0b_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2025-03-29_d45384e349f28382e3b7d9669d563e0b_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0082000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-03-29_d45384e349f28382e3b7d9669d563e0b_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B399D80D-B323-4625-BCC4-AA785318AF66}\WpadDecisionReason = "1"	2025-03-29_d45384e349f28382e3b7d9669d563e0b_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\62-86-e9-9c-c5-4e\WpadDecisionTime = 50bf9c9964a0db01	2025-03-29_d45384e349f28382e3b7d9669d563e0b_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2025-03-29_d45384e349f28382e3b7d9669d563e0b_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2025-03-29_d45384e349f28382e3b7d9669d563e0b_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-03-29_d45384e349f28382e3b7d9669d563e0b_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2025-03-29_d45384e349f28382e3b7d9669d563e0b_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2025-03-29_d45384e349f28382e3b7d9669d563e0b_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B399D80D-B323-4625-BCC4-AA785318AF66}\WpadNetworkName = "Network 3"	2025-03-29_d45384e349f28382e3b7d9669d563e0b_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\62-86-e9-9c-c5-4e	2025-03-29_d45384e349f28382e3b7d9669d563e0b_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B399D80D-B323-4625-BCC4-AA785318AF66}\62-86-e9-9c-c5-4e	2025-03-29_d45384e349f28382e3b7d9669d563e0b_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2025-03-29_d45384e349f28382e3b7d9669d563e0b_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2025-03-29_d45384e349f28382e3b7d9669d563e0b_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2025-03-29_d45384e349f28382e3b7d9669d563e0b_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B399D80D-B323-4625-BCC4-AA785318AF66}	2025-03-29_d45384e349f28382e3b7d9669d563e0b_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B399D80D-B323-4625-BCC4-AA785318AF66}\WpadDecisionTime = 50bf9c9964a0db01	2025-03-29_d45384e349f28382e3b7d9669d563e0b_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2025-03-29_d45384e349f28382e3b7d9669d563e0b_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2025-03-29_d45384e349f28382e3b7d9669d563e0b_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2200
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:1996

C:\Users\Admin\AppData\Local\Temp\2025-03-29_d45384e349f28382e3b7d9669d563e0b_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2025-03-29_d45384e349f28382e3b7d9669d563e0b_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:3028

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
bc6d629b6c39020a978de6526e801090

SHA1
b5d3a78643e47d36c58caba3819287721cc685cf

SHA256
74ff9f6133f62e45ddc2fa22b6acd96b092463407d97bc3de0e25f052b41ad9e

SHA512
667833ebb9bf39ed4e6ec91880bcb1b9556bbe91221e552ea77decde3e1ee1d71d0973b535b085816875be2477214c8517f61e6354666f30b9855552aa9e4bdd

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