wannacry | 4e383b125699fb74b8b4b85c5e47ff4ed9634b6bb7d2bb3c76345d14bf0ce747

General

Target

2024092416e4a0fb712cfff0f959270ee68414d0wannacry.exe
Size

3.6MB
MD5

16e4a0fb712cfff0f959270ee68414d0
SHA1

aac459cff105d7d605cd606bc955a118c3eb9cee
SHA256

4e383b125699fb74b8b4b85c5e47ff4ed9634b6bb7d2bb3c76345d14bf0ce747
SHA512

907ff24dff74963dda6c92b82102c516080129994cd189eb89c9bfefe26b4b08de30c29ab686d108ce2a6aed89d689616f648ca5c55a3b23198e08cd3f08ed80
SSDEEP

98304:yDqPoBhz1aRxcSUDk36SAEdhvxWa9PbyAVp2HI:yDqPe1Cxcxk3ZAEUadbyc4HI

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3350) 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
2168	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	2024092416e4a0fb712cfff0f959270ee68414d0wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024092416e4a0fb712cfff0f959270ee68414d0wannacry.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	2024092416e4a0fb712cfff0f959270ee68414d0wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024092416e4a0fb712cfff0f959270ee68414d0wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024092416e4a0fb712cfff0f959270ee68414d0wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024092416e4a0fb712cfff0f959270ee68414d0wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024092416e4a0fb712cfff0f959270ee68414d0wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024092416e4a0fb712cfff0f959270ee68414d0wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A6DE1134-556A-44FD-A4F3-9D64DAC19EFC}	2024092416e4a0fb712cfff0f959270ee68414d0wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A6DE1134-556A-44FD-A4F3-9D64DAC19EFC}\WpadDecisionTime = d08ac17ac80edb01	2024092416e4a0fb712cfff0f959270ee68414d0wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024092416e4a0fb712cfff0f959270ee68414d0wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024092416e4a0fb712cfff0f959270ee68414d0wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\82-f4-30-3a-9b-09\WpadDecisionTime = d08ac17ac80edb01	2024092416e4a0fb712cfff0f959270ee68414d0wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\82-f4-30-3a-9b-09	2024092416e4a0fb712cfff0f959270ee68414d0wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A6DE1134-556A-44FD-A4F3-9D64DAC19EFC}\82-f4-30-3a-9b-09	2024092416e4a0fb712cfff0f959270ee68414d0wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024092416e4a0fb712cfff0f959270ee68414d0wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\82-f4-30-3a-9b-09\WpadDecision = "0"	2024092416e4a0fb712cfff0f959270ee68414d0wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024092416e4a0fb712cfff0f959270ee68414d0wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024092416e4a0fb712cfff0f959270ee68414d0wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A6DE1134-556A-44FD-A4F3-9D64DAC19EFC}\WpadDecisionReason = "1"	2024092416e4a0fb712cfff0f959270ee68414d0wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A6DE1134-556A-44FD-A4F3-9D64DAC19EFC}\WpadDecision = "0"	2024092416e4a0fb712cfff0f959270ee68414d0wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A6DE1134-556A-44FD-A4F3-9D64DAC19EFC}\WpadNetworkName = "Network 3"	2024092416e4a0fb712cfff0f959270ee68414d0wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\82-f4-30-3a-9b-09\WpadDecisionReason = "1"	2024092416e4a0fb712cfff0f959270ee68414d0wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024092416e4a0fb712cfff0f959270ee68414d0wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024092416e4a0fb712cfff0f959270ee68414d0wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00ae000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024092416e4a0fb712cfff0f959270ee68414d0wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024092416e4a0fb712cfff0f959270ee68414d0wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024092416e4a0fb712cfff0f959270ee68414d0wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024092416e4a0fb712cfff0f959270ee68414d0wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024092416e4a0fb712cfff0f959270ee68414d0wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2520
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2168

C:\Users\Admin\AppData\Local\Temp\2024092416e4a0fb712cfff0f959270ee68414d0wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024092416e4a0fb712cfff0f959270ee68414d0wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2008

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
d1d8c7a8033a3d53b8393e3bf120ba6c

SHA1
156e84fcaa8bdc9703744839f46df99c7583957e

SHA256
05441fbde9a0d99029f9c268a1086400bf92a0a6353a72d16303ee100651bc91

SHA512
a080338218d152871f71eb88b78f94240cadb8f7b79bcbde466daa06a1897e9594efb0cbb2359f9d58649e618898f0c2b4760b96160ec7cd17aff9c1433c363c

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Analysis

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