wannacry | e0b23c93e95da55ac12df7beb344c17b926b6e68960eb5b8271585e1d68e613b

General

Target

2024-09-27_56faec74fb43c244cccc834d568f71c7_wannacry.exe
Size

3.6MB
MD5

56faec74fb43c244cccc834d568f71c7
SHA1

81cdee6c70f4609599b51c00a2e5d06d3fc2ae57
SHA256

e0b23c93e95da55ac12df7beb344c17b926b6e68960eb5b8271585e1d68e613b
SHA512

4524eb5c9547b64832e694ee04cf53fdc17e163168a03fa05c74d04536e6dd150be2191f1787d21aad75421db27ad425fc71247494fb95ad20ccfd8ff6f7cf26
SSDEEP

24576:2bLgddQhfdmMSirYbcMNgef0NUKsuilF2YGAVeJ53xwNg0rF/OJsJe:2nAQqMSPbcBVNzsu2gilOC

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3201) 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
2424	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_56faec74fb43c244cccc834d568f71c7_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-09-27_56faec74fb43c244cccc834d568f71c7_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_56faec74fb43c244cccc834d568f71c7_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-27_56faec74fb43c244cccc834d568f71c7_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 = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-27_56faec74fb43c244cccc834d568f71c7_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-09-27_56faec74fb43c244cccc834d568f71c7_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-09-27_56faec74fb43c244cccc834d568f71c7_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-09-27_56faec74fb43c244cccc834d568f71c7_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{48BE3D07-CE27-44FD-83B0-B520ADC97E7F}\WpadDecisionTime = 902760fbfe10db01	2024-09-27_56faec74fb43c244cccc834d568f71c7_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\8e-e9-62-78-c7-6c	2024-09-27_56faec74fb43c244cccc834d568f71c7_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-09-27_56faec74fb43c244cccc834d568f71c7_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00eb000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-27_56faec74fb43c244cccc834d568f71c7_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{48BE3D07-CE27-44FD-83B0-B520ADC97E7F}	2024-09-27_56faec74fb43c244cccc834d568f71c7_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\8e-e9-62-78-c7-6c\WpadDecisionReason = "1"	2024-09-27_56faec74fb43c244cccc834d568f71c7_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\8e-e9-62-78-c7-6c\WpadDecision = "0"	2024-09-27_56faec74fb43c244cccc834d568f71c7_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-09-27_56faec74fb43c244cccc834d568f71c7_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-09-27_56faec74fb43c244cccc834d568f71c7_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-09-27_56faec74fb43c244cccc834d568f71c7_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-09-27_56faec74fb43c244cccc834d568f71c7_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{48BE3D07-CE27-44FD-83B0-B520ADC97E7F}\WpadDecision = "0"	2024-09-27_56faec74fb43c244cccc834d568f71c7_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{48BE3D07-CE27-44FD-83B0-B520ADC97E7F}\WpadNetworkName = "Network 3"	2024-09-27_56faec74fb43c244cccc834d568f71c7_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{48BE3D07-CE27-44FD-83B0-B520ADC97E7F}\8e-e9-62-78-c7-6c	2024-09-27_56faec74fb43c244cccc834d568f71c7_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\8e-e9-62-78-c7-6c\WpadDecisionTime = 902760fbfe10db01	2024-09-27_56faec74fb43c244cccc834d568f71c7_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-27_56faec74fb43c244cccc834d568f71c7_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-09-27_56faec74fb43c244cccc834d568f71c7_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-09-27_56faec74fb43c244cccc834d568f71c7_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{48BE3D07-CE27-44FD-83B0-B520ADC97E7F}\WpadDecisionReason = "1"	2024-09-27_56faec74fb43c244cccc834d568f71c7_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-09-27_56faec74fb43c244cccc834d568f71c7_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-09-27_56faec74fb43c244cccc834d568f71c7_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-27_56faec74fb43c244cccc834d568f71c7_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2416
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2424

C:\Users\Admin\AppData\Local\Temp\2024-09-27_56faec74fb43c244cccc834d568f71c7_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-09-27_56faec74fb43c244cccc834d568f71c7_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2912

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
4feb63b6c3dd3299e5e01e9e3bb5e115

SHA1
eba48510c492dbf055579d51c052076825737edf

SHA256
10b15bc9db881910dc2bf27a1bbd92781e234ccec5c6a9671923799e7e800b0f

SHA512
86edcaedea8599b356fd2d37d66072b8a72a9355c1a10c8080ebd48d17789b029d48c4790c3af080a659a3690681c63d7112e19e78a35f263d4a58049227225a

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