wannacry | b4f47d5fc816a528dc12ff780c372044adc63567800b8cbc72b522e790057a2e

General

Target

2024-06-04_3e24dc065780331c69d37abb60d1f7e2_wannacry.exe
Size

3.6MB
MD5

3e24dc065780331c69d37abb60d1f7e2
SHA1

5fa201a38c52682c1a724f4a38ca47b59610cb79
SHA256

b4f47d5fc816a528dc12ff780c372044adc63567800b8cbc72b522e790057a2e
SHA512

2551a832a83d3ffe44e3eef671ec5e1c37dceb7ec2a86c5d6c79c63dc8a862810cea1e8d1f36cacb4e0f350433a213b28a765de4c3c1a24688fc5eb28ba4aeba
SSDEEP

98304:XDqPoB+aRxcSUDk36SAEdhvxWa9P593R8yAVp2HI:XDqPvCxcxk3ZAEUadzR8yc4HI

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3315) 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

Processes:

tasksche.exe

pid process

2608 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

pid	process
2608	tasksche.exe

Drops file in System32 directory 1 IoCs

Processes:

2024-06-04_3e24dc065780331c69d37abb60d1f7e2_wannacry.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	2024-06-04_3e24dc065780331c69d37abb60d1f7e2_wannacry.exe

Drops file in Windows directory 1 IoCs

Processes:

2024-06-04_3e24dc065780331c69d37abb60d1f7e2_wannacry.exe

description ioc process

File created C:\WINDOWS\tasksche.exe 2024-06-04_3e24dc065780331c69d37abb60d1f7e2_wannacry.exe

description	ioc	process
File created	C:\WINDOWS\tasksche.exe	2024-06-04_3e24dc065780331c69d37abb60d1f7e2_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

Processes:

2024-06-04_3e24dc065780331c69d37abb60d1f7e2_wannacry.exe

description	ioc	process
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-06-04_3e24dc065780331c69d37abb60d1f7e2_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-06-04_3e24dc065780331c69d37abb60d1f7e2_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-06-04_3e24dc065780331c69d37abb60d1f7e2_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-06-04_3e24dc065780331c69d37abb60d1f7e2_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-06-04_3e24dc065780331c69d37abb60d1f7e2_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{6D3825C1-197E-4328-ACC9-053113537B39}	2024-06-04_3e24dc065780331c69d37abb60d1f7e2_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{6D3825C1-197E-4328-ACC9-053113537B39}\WpadDecisionTime = 90c7481b48b6da01	2024-06-04_3e24dc065780331c69d37abb60d1f7e2_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-06-04_3e24dc065780331c69d37abb60d1f7e2_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{6D3825C1-197E-4328-ACC9-053113537B39}\WpadNetworkName = "Network 3"	2024-06-04_3e24dc065780331c69d37abb60d1f7e2_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{6D3825C1-197E-4328-ACC9-053113537B39}\06-cb-7e-1e-58-a7	2024-06-04_3e24dc065780331c69d37abb60d1f7e2_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\06-cb-7e-1e-58-a7\WpadDecisionTime = 90c7481b48b6da01	2024-06-04_3e24dc065780331c69d37abb60d1f7e2_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{6D3825C1-197E-4328-ACC9-053113537B39}\WpadDecision = "0"	2024-06-04_3e24dc065780331c69d37abb60d1f7e2_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-06-04_3e24dc065780331c69d37abb60d1f7e2_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-06-04_3e24dc065780331c69d37abb60d1f7e2_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-06-04_3e24dc065780331c69d37abb60d1f7e2_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-06-04_3e24dc065780331c69d37abb60d1f7e2_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{6D3825C1-197E-4328-ACC9-053113537B39}\WpadDecisionReason = "1"	2024-06-04_3e24dc065780331c69d37abb60d1f7e2_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\06-cb-7e-1e-58-a7\WpadDecisionReason = "1"	2024-06-04_3e24dc065780331c69d37abb60d1f7e2_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\06-cb-7e-1e-58-a7\WpadDecision = "0"	2024-06-04_3e24dc065780331c69d37abb60d1f7e2_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-06-04_3e24dc065780331c69d37abb60d1f7e2_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-06-04_3e24dc065780331c69d37abb60d1f7e2_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00f2000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-06-04_3e24dc065780331c69d37abb60d1f7e2_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\06-cb-7e-1e-58-a7	2024-06-04_3e24dc065780331c69d37abb60d1f7e2_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-06-04_3e24dc065780331c69d37abb60d1f7e2_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-06-04_3e24dc065780331c69d37abb60d1f7e2_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-04_3e24dc065780331c69d37abb60d1f7e2_wannacry.exe"
1⤵
- Drops file in Windows directory
PID:1676

C:\WINDOWS\tasksche.exe
C:\WINDOWS\tasksche.exe /i
2⤵
- Executes dropped EXE
PID:2608

C:\Users\Admin\AppData\Local\Temp\2024-06-04_3e24dc065780331c69d37abb60d1f7e2_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-06-04_3e24dc065780331c69d37abb60d1f7e2_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
PID:2124

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\tasksche.exe

Filesize
3.4MB

MD5
864bba3d2125756cce162879fd4e2626

SHA1
5d09371bc7bc6ccc2789ec4cf73278f438337fab

SHA256
752486aa679776a42a045be585e24e8694bd4baa0b0777c1a5ae224ec8d72db3

SHA512
aa5415fa3604da5af80c02a1b6fc6befbaf9968bf37c2458faa49f4a3da235f2282eb0eefd8e02cb53e8a2913dc586733b46fec8b4280198810eba86ba72f43c

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