wannacry | 4227ae0496519669789431f6469f3f43cd9cde6f6da21db375c5944a72794890

General

Target

4227ae0496519669789431f6469f3f43cd9cde6f6da21db375c5944a72794890.exe
Size

2.2MB
MD5

334248e1ecbf88c5c4f114abe23bbb65
SHA1

c126a5b7464633bb99792328c5c46fb32212791c
SHA256

4227ae0496519669789431f6469f3f43cd9cde6f6da21db375c5944a72794890
SHA512

3a2cdcf366c9cd4aa911c66fe1fa6aa40fb10e3d5deafc7f6114c60ec1273c2636eef213935a39c716a5d6bf0049f2f41562da146885a66900912c2d475679ee
SSDEEP

24576:QbLguriIfEcQdIVUacMNgef0QeQjG/D8kIqRYoAdNLKz6626M+:QnpEKUacBVQej/1INRx+

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Wannacry family
wannacry
Contacts a large (3126) 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
3068	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	4227ae0496519669789431f6469f3f43cd9cde6f6da21db375c5944a72794890.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File created	C:\Windows\__tmp_rar_sfx_access_check_259516492	tasksche.exe
File created	C:\Windows\eee.exe	tasksche.exe
File created	C:\WINDOWS\tasksche.exe	4227ae0496519669789431f6469f3f43cd9cde6f6da21db375c5944a72794890.exe

System Location Discovery: System Language Discovery 1 TTPs 3 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	tasksche.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4227ae0496519669789431f6469f3f43cd9cde6f6da21db375c5944a72794890.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4227ae0496519669789431f6469f3f43cd9cde6f6da21db375c5944a72794890.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	4227ae0496519669789431f6469f3f43cd9cde6f6da21db375c5944a72794890.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	4227ae0496519669789431f6469f3f43cd9cde6f6da21db375c5944a72794890.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	4227ae0496519669789431f6469f3f43cd9cde6f6da21db375c5944a72794890.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	4227ae0496519669789431f6469f3f43cd9cde6f6da21db375c5944a72794890.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	4227ae0496519669789431f6469f3f43cd9cde6f6da21db375c5944a72794890.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{BC977695-0DCD-4DE5-A62C-D2CCFA9E2BD8}\WpadDecision = "0"	4227ae0496519669789431f6469f3f43cd9cde6f6da21db375c5944a72794890.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	4227ae0496519669789431f6469f3f43cd9cde6f6da21db375c5944a72794890.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	4227ae0496519669789431f6469f3f43cd9cde6f6da21db375c5944a72794890.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	4227ae0496519669789431f6469f3f43cd9cde6f6da21db375c5944a72794890.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	4227ae0496519669789431f6469f3f43cd9cde6f6da21db375c5944a72794890.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0089000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	4227ae0496519669789431f6469f3f43cd9cde6f6da21db375c5944a72794890.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{BC977695-0DCD-4DE5-A62C-D2CCFA9E2BD8}\WpadDecisionTime = 30c0db73db66db01	4227ae0496519669789431f6469f3f43cd9cde6f6da21db375c5944a72794890.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\fa-b3-09-d6-34-e2	4227ae0496519669789431f6469f3f43cd9cde6f6da21db375c5944a72794890.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	4227ae0496519669789431f6469f3f43cd9cde6f6da21db375c5944a72794890.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	4227ae0496519669789431f6469f3f43cd9cde6f6da21db375c5944a72794890.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{BC977695-0DCD-4DE5-A62C-D2CCFA9E2BD8}	4227ae0496519669789431f6469f3f43cd9cde6f6da21db375c5944a72794890.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{BC977695-0DCD-4DE5-A62C-D2CCFA9E2BD8}\WpadNetworkName = "Network 3"	4227ae0496519669789431f6469f3f43cd9cde6f6da21db375c5944a72794890.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{BC977695-0DCD-4DE5-A62C-D2CCFA9E2BD8}\fa-b3-09-d6-34-e2	4227ae0496519669789431f6469f3f43cd9cde6f6da21db375c5944a72794890.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\fa-b3-09-d6-34-e2\WpadDecisionReason = "1"	4227ae0496519669789431f6469f3f43cd9cde6f6da21db375c5944a72794890.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\fa-b3-09-d6-34-e2\WpadDecision = "0"	4227ae0496519669789431f6469f3f43cd9cde6f6da21db375c5944a72794890.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	4227ae0496519669789431f6469f3f43cd9cde6f6da21db375c5944a72794890.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{BC977695-0DCD-4DE5-A62C-D2CCFA9E2BD8}\WpadDecisionReason = "1"	4227ae0496519669789431f6469f3f43cd9cde6f6da21db375c5944a72794890.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\fa-b3-09-d6-34-e2\WpadDecisionTime = 30c0db73db66db01	4227ae0496519669789431f6469f3f43cd9cde6f6da21db375c5944a72794890.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	4227ae0496519669789431f6469f3f43cd9cde6f6da21db375c5944a72794890.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3068	tasksche.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2240 wrote to memory of 3068	2240	4227ae0496519669789431f6469f3f43cd9cde6f6da21db375c5944a72794890.exe	32
PID 2240 wrote to memory of 3068	2240	4227ae0496519669789431f6469f3f43cd9cde6f6da21db375c5944a72794890.exe	32
PID 2240 wrote to memory of 3068	2240	4227ae0496519669789431f6469f3f43cd9cde6f6da21db375c5944a72794890.exe	32
PID 2240 wrote to memory of 3068	2240	4227ae0496519669789431f6469f3f43cd9cde6f6da21db375c5944a72794890.exe	32
PID 2240 wrote to memory of 3068	2240	4227ae0496519669789431f6469f3f43cd9cde6f6da21db375c5944a72794890.exe	32
PID 2240 wrote to memory of 3068	2240	4227ae0496519669789431f6469f3f43cd9cde6f6da21db375c5944a72794890.exe	32
PID 2240 wrote to memory of 3068	2240	4227ae0496519669789431f6469f3f43cd9cde6f6da21db375c5944a72794890.exe	32

C:\Users\Admin\AppData\Local\Temp\4227ae0496519669789431f6469f3f43cd9cde6f6da21db375c5944a72794890.exe
"C:\Users\Admin\AppData\Local\Temp\4227ae0496519669789431f6469f3f43cd9cde6f6da21db375c5944a72794890.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2240
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: GetForegroundWindowSpam
  PID:3068

C:\Users\Admin\AppData\Local\Temp\4227ae0496519669789431f6469f3f43cd9cde6f6da21db375c5944a72794890.exe
C:\Users\Admin\AppData\Local\Temp\4227ae0496519669789431f6469f3f43cd9cde6f6da21db375c5944a72794890.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2880

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

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Downloads

C:\Windows\tasksche.exe

Filesize
2.0MB

MD5
a40cd4b80d0ab161a97ea275432dffd4

SHA1
22491ac1ff8f05f759b32f2819d138e64a87ac87

SHA256
ccc7d3a8cc20da1205bf484c83f731db23ebcd48b4712e3fb19a7f83f4cd3877

SHA512
11c655d38bfd38afa4188f379625ab02903476e7661bee30d1ea2f47ba9130b69d2a5d8f202d20a8a8c90287a7dae28ebbbae1672cafb5b7aeac4156ea36a64b

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