wannacry | 7837231c89e52635554a867eb5274fa4c1c9149d92b6d09435baf5b6f964d86b

General

Target

2024-09-27_2dd0ad0d055e1b487ad92750f78fc75d_wannacry.exe
Size

3.6MB
MD5

2dd0ad0d055e1b487ad92750f78fc75d
SHA1

d0bc863ced81c93c0a40f62ca9a67a98558a2227
SHA256

7837231c89e52635554a867eb5274fa4c1c9149d92b6d09435baf5b6f964d86b
SHA512

538bed3012e7f9846d5d67193270839c3e1c501b65c7aeb0009523126d33d7227b7a699b4008a5bdf96b3847bbe416072b773612af6d9bd06fb3b2a711570146
SSDEEP

98304:ZDqPoBhz1aRxcSUDk36SAEdhvxWa9P592c/Jf:ZDqPe1Cxcxk3ZAEUadN1

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3319) 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
280	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_2dd0ad0d055e1b487ad92750f78fc75d_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-09-27_2dd0ad0d055e1b487ad92750f78fc75d_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_2dd0ad0d055e1b487ad92750f78fc75d_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-27_2dd0ad0d055e1b487ad92750f78fc75d_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-09-27_2dd0ad0d055e1b487ad92750f78fc75d_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-27_2dd0ad0d055e1b487ad92750f78fc75d_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\f2-54-0e-90-a8-73\WpadDecisionTime = 001b0dfbfd10db01	2024-09-27_2dd0ad0d055e1b487ad92750f78fc75d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-09-27_2dd0ad0d055e1b487ad92750f78fc75d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-09-27_2dd0ad0d055e1b487ad92750f78fc75d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-09-27_2dd0ad0d055e1b487ad92750f78fc75d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-09-27_2dd0ad0d055e1b487ad92750f78fc75d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\f2-54-0e-90-a8-73\WpadDecision = "0"	2024-09-27_2dd0ad0d055e1b487ad92750f78fc75d_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{584496BF-2BDD-4242-A91B-39026B259F8A}\WpadDecisionTime = 001b0dfbfd10db01	2024-09-27_2dd0ad0d055e1b487ad92750f78fc75d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{584496BF-2BDD-4242-A91B-39026B259F8A}\WpadDecision = "0"	2024-09-27_2dd0ad0d055e1b487ad92750f78fc75d_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{584496BF-2BDD-4242-A91B-39026B259F8A}\WpadNetworkName = "Network 3"	2024-09-27_2dd0ad0d055e1b487ad92750f78fc75d_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-27_2dd0ad0d055e1b487ad92750f78fc75d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-09-27_2dd0ad0d055e1b487ad92750f78fc75d_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-09-27_2dd0ad0d055e1b487ad92750f78fc75d_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-09-27_2dd0ad0d055e1b487ad92750f78fc75d_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00bb000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-27_2dd0ad0d055e1b487ad92750f78fc75d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\f2-54-0e-90-a8-73	2024-09-27_2dd0ad0d055e1b487ad92750f78fc75d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{584496BF-2BDD-4242-A91B-39026B259F8A}\f2-54-0e-90-a8-73	2024-09-27_2dd0ad0d055e1b487ad92750f78fc75d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\f2-54-0e-90-a8-73\WpadDecisionReason = "1"	2024-09-27_2dd0ad0d055e1b487ad92750f78fc75d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-09-27_2dd0ad0d055e1b487ad92750f78fc75d_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-09-27_2dd0ad0d055e1b487ad92750f78fc75d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-09-27_2dd0ad0d055e1b487ad92750f78fc75d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{584496BF-2BDD-4242-A91B-39026B259F8A}	2024-09-27_2dd0ad0d055e1b487ad92750f78fc75d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{584496BF-2BDD-4242-A91B-39026B259F8A}\WpadDecisionReason = "1"	2024-09-27_2dd0ad0d055e1b487ad92750f78fc75d_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-09-27_2dd0ad0d055e1b487ad92750f78fc75d_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-27_2dd0ad0d055e1b487ad92750f78fc75d_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:3068
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:280

C:\Users\Admin\AppData\Local\Temp\2024-09-27_2dd0ad0d055e1b487ad92750f78fc75d_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-09-27_2dd0ad0d055e1b487ad92750f78fc75d_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2172

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
0af87203148e5715656fc7a838e06018

SHA1
4374050f51a6c85fb0a06f127933fffe75b0f289

SHA256
18726225315e9d2c18426cba03b83bd43bb7ea0ae9f6dd749516fc498f53dcdc

SHA512
aca8540db044a50990d6e756630a4e359b440c069310fe294def1d8f82d8d6f79b80161f3ff7a074f0f2533109e8112b69885808d95a14ff1ae7ac2488ac5864

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Analysis

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