wannacry | 3a4142bb454973a2ecabd30c9aeb19f4256db628c76c30419fca9b05a72e4100

General

Target

2024-09-27_aeb61db0e0c106aae391dca03c395916_wannacry.exe
Size

3.6MB
MD5

aeb61db0e0c106aae391dca03c395916
SHA1

e9102c9cbd1c2972acf8f10a3345fc9db425852a
SHA256

3a4142bb454973a2ecabd30c9aeb19f4256db628c76c30419fca9b05a72e4100
SHA512

6d2dc14d1b705737499c5e7d6a2770b5a739c4c0300fe31291ebf7f9f24a068e239412eaa26f8fbfba3d4f8d47b5a0e5469ad1027f4ec8d3c0996e5ce9c94093
SSDEEP

98304:yDqPoBhz1aRxcSUDk36SAEdhv3593R8yAVp2o:yDqPe1Cxcxk3ZAErzR8yc4o

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3222) 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
2444	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_aeb61db0e0c106aae391dca03c395916_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-09-27_aeb61db0e0c106aae391dca03c395916_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_aeb61db0e0c106aae391dca03c395916_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-27_aeb61db0e0c106aae391dca03c395916_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-09-27_aeb61db0e0c106aae391dca03c395916_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-09-27_aeb61db0e0c106aae391dca03c395916_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{9C3FC86A-C7BD-47ED-BF01-AC486AD57270}\WpadDecision = "0"	2024-09-27_aeb61db0e0c106aae391dca03c395916_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\b2-e3-e7-f4-66-1b	2024-09-27_aeb61db0e0c106aae391dca03c395916_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\b2-e3-e7-f4-66-1b\WpadDecisionTime = 9094f3470211db01	2024-09-27_aeb61db0e0c106aae391dca03c395916_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-27_aeb61db0e0c106aae391dca03c395916_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-09-27_aeb61db0e0c106aae391dca03c395916_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-09-27_aeb61db0e0c106aae391dca03c395916_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-09-27_aeb61db0e0c106aae391dca03c395916_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-09-27_aeb61db0e0c106aae391dca03c395916_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{9C3FC86A-C7BD-47ED-BF01-AC486AD57270}\WpadDecisionTime = 9094f3470211db01	2024-09-27_aeb61db0e0c106aae391dca03c395916_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{9C3FC86A-C7BD-47ED-BF01-AC486AD57270}\WpadNetworkName = "Network 3"	2024-09-27_aeb61db0e0c106aae391dca03c395916_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\b2-e3-e7-f4-66-1b\WpadDecisionReason = "1"	2024-09-27_aeb61db0e0c106aae391dca03c395916_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-09-27_aeb61db0e0c106aae391dca03c395916_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-09-27_aeb61db0e0c106aae391dca03c395916_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-09-27_aeb61db0e0c106aae391dca03c395916_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00ed000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-27_aeb61db0e0c106aae391dca03c395916_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{9C3FC86A-C7BD-47ED-BF01-AC486AD57270}\WpadDecisionReason = "1"	2024-09-27_aeb61db0e0c106aae391dca03c395916_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{9C3FC86A-C7BD-47ED-BF01-AC486AD57270}\b2-e3-e7-f4-66-1b	2024-09-27_aeb61db0e0c106aae391dca03c395916_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\b2-e3-e7-f4-66-1b\WpadDecision = "0"	2024-09-27_aeb61db0e0c106aae391dca03c395916_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-09-27_aeb61db0e0c106aae391dca03c395916_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-27_aeb61db0e0c106aae391dca03c395916_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{9C3FC86A-C7BD-47ED-BF01-AC486AD57270}	2024-09-27_aeb61db0e0c106aae391dca03c395916_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-09-27_aeb61db0e0c106aae391dca03c395916_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-09-27_aeb61db0e0c106aae391dca03c395916_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-27_aeb61db0e0c106aae391dca03c395916_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:3016
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2444

C:\Users\Admin\AppData\Local\Temp\2024-09-27_aeb61db0e0c106aae391dca03c395916_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-09-27_aeb61db0e0c106aae391dca03c395916_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:572

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
1bf1cd3692496cd34a878f33054e3850

SHA1
01218e2f43b685f773b715a75af63f92ac81ea76

SHA256
94d0514809be19d9f3793658f3f498bf1381dbda0ecbf5b6bedf5d152cb66aff

SHA512
cdacc5caa3986f4d94b05df4d187b2eefe25dedb0f0d3d59b400a7107d4d5f0ce303f786b4602a18af137d32609a624ab3d32810cf2dab4993208f3ae221e235

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Analysis

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