wannacry | dbb1dc4da1940ea8fc53364d6b9f72b3f1586aea6686479fd0fb2d110afe23db

General

Target

2024-05-09_beb195b7ca4824b4113b1e5a6c3b9b25_wannacry.exe
Size

2.2MB
MD5

beb195b7ca4824b4113b1e5a6c3b9b25
SHA1

4c2e1c8d6ff93972b7ef74464144151b1cfe94d6
SHA256

dbb1dc4da1940ea8fc53364d6b9f72b3f1586aea6686479fd0fb2d110afe23db
SHA512

6686b2389c94f4ddbb71158ded7cbf20602271e70db66fb20966ea7188281668ca68a3149ff0acf4be548e48857ef7f5a9701ca3d017e7dac4963e9d4a0c0c17
SSDEEP

12288:e1bLgmluCti62WfSm0iEcQhfYNVUyqT2WY9jr9RHkvjEz:QbLguriIfEcQdIVUXJc

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3051) 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

2776 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
2776	tasksche.exe

Drops file in System32 directory 5 IoCs

Processes:

2024-05-09_beb195b7ca4824b4113b1e5a6c3b9b25_wannacry.exe

description	ioc	process
File created	C:\Windows\SysWOW64\config\systemprofile\AppData\Roaming\Microsoft\Windows\Cookies\79DEJ39U.txt	2024-05-09_beb195b7ca4824b4113b1e5a6c3b9b25_wannacry.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Roaming\Microsoft\Windows\Cookies\79DEJ39U.txt	2024-05-09_beb195b7ca4824b4113b1e5a6c3b9b25_wannacry.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	2024-05-09_beb195b7ca4824b4113b1e5a6c3b9b25_wannacry.exe
File created	C:\Windows\SysWOW64\config\systemprofile\AppData\Roaming\Microsoft\Windows\Cookies\8AW0DMA4.txt	2024-05-09_beb195b7ca4824b4113b1e5a6c3b9b25_wannacry.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Roaming\Microsoft\Windows\Cookies\8AW0DMA4.txt	2024-05-09_beb195b7ca4824b4113b1e5a6c3b9b25_wannacry.exe

Drops file in Windows directory 3 IoCs

Processes:

tasksche.exe2024-05-09_beb195b7ca4824b4113b1e5a6c3b9b25_wannacry.exe

description	ioc	process
File created	C:\Windows\eee.exe	tasksche.exe
File created	C:\WINDOWS\tasksche.exe	2024-05-09_beb195b7ca4824b4113b1e5a6c3b9b25_wannacry.exe
File created	C:\Windows\__tmp_rar_sfx_access_check_259398790	tasksche.exe

Modifies data under HKEY_USERS 24 IoCs

Processes:

2024-05-09_beb195b7ca4824b4113b1e5a6c3b9b25_wannacry.exe

description	ioc	process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\3e-9e-10-c9-cd-06	2024-05-09_beb195b7ca4824b4113b1e5a6c3b9b25_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{CFB57058-C07B-4CFF-A322-7CC127FBF1CD}\3e-9e-10-c9-cd-06	2024-05-09_beb195b7ca4824b4113b1e5a6c3b9b25_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\3e-9e-10-c9-cd-06\WpadDecisionReason = "1"	2024-05-09_beb195b7ca4824b4113b1e5a6c3b9b25_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-05-09_beb195b7ca4824b4113b1e5a6c3b9b25_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-05-09_beb195b7ca4824b4113b1e5a6c3b9b25_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-05-09_beb195b7ca4824b4113b1e5a6c3b9b25_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{CFB57058-C07B-4CFF-A322-7CC127FBF1CD}	2024-05-09_beb195b7ca4824b4113b1e5a6c3b9b25_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{CFB57058-C07B-4CFF-A322-7CC127FBF1CD}\WpadDecisionTime = 00372c79aaa1da01	2024-05-09_beb195b7ca4824b4113b1e5a6c3b9b25_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-05-09_beb195b7ca4824b4113b1e5a6c3b9b25_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-05-09_beb195b7ca4824b4113b1e5a6c3b9b25_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-05-09_beb195b7ca4824b4113b1e5a6c3b9b25_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-05-09_beb195b7ca4824b4113b1e5a6c3b9b25_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{CFB57058-C07B-4CFF-A322-7CC127FBF1CD}\WpadDecision = "0"	2024-05-09_beb195b7ca4824b4113b1e5a6c3b9b25_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-05-09_beb195b7ca4824b4113b1e5a6c3b9b25_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-05-09_beb195b7ca4824b4113b1e5a6c3b9b25_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-05-09_beb195b7ca4824b4113b1e5a6c3b9b25_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\3e-9e-10-c9-cd-06\WpadDecision = "0"	2024-05-09_beb195b7ca4824b4113b1e5a6c3b9b25_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{CFB57058-C07B-4CFF-A322-7CC127FBF1CD}\WpadNetworkName = "Network 3"	2024-05-09_beb195b7ca4824b4113b1e5a6c3b9b25_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\3e-9e-10-c9-cd-06\WpadDecisionTime = 00372c79aaa1da01	2024-05-09_beb195b7ca4824b4113b1e5a6c3b9b25_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-05-09_beb195b7ca4824b4113b1e5a6c3b9b25_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-05-09_beb195b7ca4824b4113b1e5a6c3b9b25_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-05-09_beb195b7ca4824b4113b1e5a6c3b9b25_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00f4000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-05-09_beb195b7ca4824b4113b1e5a6c3b9b25_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{CFB57058-C07B-4CFF-A322-7CC127FBF1CD}\WpadDecisionReason = "1"	2024-05-09_beb195b7ca4824b4113b1e5a6c3b9b25_wannacry.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

tasksche.exe

pid process

2776 tasksche.exe

pid	process
2776	tasksche.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

2024-05-09_beb195b7ca4824b4113b1e5a6c3b9b25_wannacry.exe

description	pid	process	target process
PID 1808 wrote to memory of 2776	1808	2024-05-09_beb195b7ca4824b4113b1e5a6c3b9b25_wannacry.exe	tasksche.exe
PID 1808 wrote to memory of 2776	1808	2024-05-09_beb195b7ca4824b4113b1e5a6c3b9b25_wannacry.exe	tasksche.exe
PID 1808 wrote to memory of 2776	1808	2024-05-09_beb195b7ca4824b4113b1e5a6c3b9b25_wannacry.exe	tasksche.exe
PID 1808 wrote to memory of 2776	1808	2024-05-09_beb195b7ca4824b4113b1e5a6c3b9b25_wannacry.exe	tasksche.exe
PID 1808 wrote to memory of 2776	1808	2024-05-09_beb195b7ca4824b4113b1e5a6c3b9b25_wannacry.exe	tasksche.exe
PID 1808 wrote to memory of 2776	1808	2024-05-09_beb195b7ca4824b4113b1e5a6c3b9b25_wannacry.exe	tasksche.exe
PID 1808 wrote to memory of 2776	1808	2024-05-09_beb195b7ca4824b4113b1e5a6c3b9b25_wannacry.exe	tasksche.exe

C:\Users\Admin\AppData\Local\Temp\2024-05-09_beb195b7ca4824b4113b1e5a6c3b9b25_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-09_beb195b7ca4824b4113b1e5a6c3b9b25_wannacry.exe"
1⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:1808

C:\WINDOWS\tasksche.exe
C:\WINDOWS\tasksche.exe /i
2⤵
- Executes dropped EXE
- Drops file in Windows directory
- Suspicious behavior: GetForegroundWindowSpam
PID:2776

C:\Users\Admin\AppData\Local\Temp\2024-05-09_beb195b7ca4824b4113b1e5a6c3b9b25_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-05-09_beb195b7ca4824b4113b1e5a6c3b9b25_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
PID:2704

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

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Downloads

C:\Windows\tasksche.exe
Filesize
2.0MB

MD5
fb3f03c76f319ba79409e2dcb2e25084

SHA1
2ab1c8803a9aedc82c6f81c4372b5ad9d4b53417

SHA256
f198438457dc9483c4f4247a3f7e10cbb735220cd1ee60163c58fa28402d2db5

SHA512
7da5426a05b689b0684a7b4496e51dd17038336c5ac8c16acdb759895f901017f63ffd69cf118f949d62375640e496987b9ffccdfcb6fb5c9cb659785b1ee36c

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads