wannacry | be27124de1f236871ed3a317e6000be145aea559d5cfff5ea8082bb4b7e72328

General

Target

2025-01-04_b249555a66ac0faecf3e11e9029a1302_wannacry.exe
Size

5.0MB
MD5

b249555a66ac0faecf3e11e9029a1302
SHA1

111f3338de440e87526cccc6c933ae1875e4e13a
SHA256

be27124de1f236871ed3a317e6000be145aea559d5cfff5ea8082bb4b7e72328
SHA512

719daa697e18b34d4ebb1afd895e50b4b5e4373049264283924298545f3f77fcfd076da13816854eb1b4f160807d6f3f9c596af14c13164d6c3e09b34dc196f9
SSDEEP

98304:yDqPoBhz1aRxcSUDk36SAEdhvxWa9P59:yDqPe1Cxcxk3ZAEUad

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 (3352) 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
280	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	2025-01-04_b249555a66ac0faecf3e11e9029a1302_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2025-01-04_b249555a66ac0faecf3e11e9029a1302_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	2025-01-04_b249555a66ac0faecf3e11e9029a1302_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-04_b249555a66ac0faecf3e11e9029a1302_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{584496BF-2BDD-4242-A91B-39026B259F8A}\WpadDecisionTime = 60ff9dd4a65edb01	2025-01-04_b249555a66ac0faecf3e11e9029a1302_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\f2-54-0e-90-a8-73\WpadDecisionTime = 60ff9dd4a65edb01	2025-01-04_b249555a66ac0faecf3e11e9029a1302_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2025-01-04_b249555a66ac0faecf3e11e9029a1302_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2025-01-04_b249555a66ac0faecf3e11e9029a1302_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2025-01-04_b249555a66ac0faecf3e11e9029a1302_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\f2-54-0e-90-a8-73\WpadDecisionReason = "1"	2025-01-04_b249555a66ac0faecf3e11e9029a1302_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2025-01-04_b249555a66ac0faecf3e11e9029a1302_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-04_b249555a66ac0faecf3e11e9029a1302_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00bb000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-04_b249555a66ac0faecf3e11e9029a1302_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2025-01-04_b249555a66ac0faecf3e11e9029a1302_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2025-01-04_b249555a66ac0faecf3e11e9029a1302_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{584496BF-2BDD-4242-A91B-39026B259F8A}\WpadDecisionReason = "1"	2025-01-04_b249555a66ac0faecf3e11e9029a1302_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\f2-54-0e-90-a8-73	2025-01-04_b249555a66ac0faecf3e11e9029a1302_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{584496BF-2BDD-4242-A91B-39026B259F8A}\f2-54-0e-90-a8-73	2025-01-04_b249555a66ac0faecf3e11e9029a1302_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2025-01-04_b249555a66ac0faecf3e11e9029a1302_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2025-01-04_b249555a66ac0faecf3e11e9029a1302_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2025-01-04_b249555a66ac0faecf3e11e9029a1302_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\f2-54-0e-90-a8-73\WpadDecision = "0"	2025-01-04_b249555a66ac0faecf3e11e9029a1302_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{584496BF-2BDD-4242-A91B-39026B259F8A}	2025-01-04_b249555a66ac0faecf3e11e9029a1302_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{584496BF-2BDD-4242-A91B-39026B259F8A}\WpadDecision = "0"	2025-01-04_b249555a66ac0faecf3e11e9029a1302_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{584496BF-2BDD-4242-A91B-39026B259F8A}\WpadNetworkName = "Network 3"	2025-01-04_b249555a66ac0faecf3e11e9029a1302_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-04_b249555a66ac0faecf3e11e9029a1302_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2025-01-04_b249555a66ac0faecf3e11e9029a1302_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2025-01-04_b249555a66ac0faecf3e11e9029a1302_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2025-01-04_b249555a66ac0faecf3e11e9029a1302_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-04_b249555a66ac0faecf3e11e9029a1302_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:3068
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:280

C:\Users\Admin\AppData\Local\Temp\2025-01-04_b249555a66ac0faecf3e11e9029a1302_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2025-01-04_b249555a66ac0faecf3e11e9029a1302_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2172

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
7ed52a0a7fb64ea981388b943ef73bc1

SHA1
f43cf08116d21981e2db44e2bd751501da5deeb7

SHA256
034b0589d1d80a63baa8e6357ef8f6aacf16a38de687ddc9eb904d7eb696a3f0

SHA512
fd802bb5351fdbff365edf66dcb2e038785a9b53f20d898a141f058312bbce306cf2a9fa203d0914d2deec2326c096fe908094348c2154fa02c54c0e5757d99d

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Analysis

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