wannacry | ce2194c96ebab334f8484a7a3e45e2c3bb74296fc5eddd335abf3f5c65f34967

Analysis

max time kernel
150s
max time network
118s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
22/08/2024, 20:45

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General

Target

202305088a016c4ee71532f20b892bb35eb954f4wannacry.exe
Size

6.4MB
MD5

8a016c4ee71532f20b892bb35eb954f4
SHA1

204c97ab720d12e6fa04cd8bea6da019c1d4317e
SHA256

ce2194c96ebab334f8484a7a3e45e2c3bb74296fc5eddd335abf3f5c65f34967
SHA512

a0ecffce2b724287e8ab01d23d95839d7e522bc27dc14be26b5089bf8704a46c176a87f02648f6ba646938217afb1b33c6e6557ff3dce528497d9b321310c9bd
SSDEEP

6144:YE9l9yKqIYVTH5DgSg8ajldktM0XXrV2QhMV9qb:YJbLgPluwQhMb

Score

10^/10

wannacry defense_evasion discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry

Executes dropped EXE 3 IoCs

pid	Process
2940	tasksche.exe
1228	tasksche.exe
2548	tasksche.exe

Loads dropped DLL 1 IoCs

pid	Process
2940	tasksche.exe

Modifies file permissions 1 TTPs 3 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
2004	icacls.exe
2880	icacls.exe
2628	icacls.exe

File and Directory Permissions Modification: Windows File and Directory Permissions Modification 1 TTPs
defense_evasion

Windows File and Directory Permissions Modification
T1222.001

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	202305088a016c4ee71532f20b892bb35eb954f4wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	202305088a016c4ee71532f20b892bb35eb954f4wannacry.exe

System Location Discovery: System Language Discovery 1 TTPs 11 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	tasksche.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	202305088a016c4ee71532f20b892bb35eb954f4wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	tasksche.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	202305088a016c4ee71532f20b892bb35eb954f4wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	202305088a016c4ee71532f20b892bb35eb954f4wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	202305088a016c4ee71532f20b892bb35eb954f4wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	202305088a016c4ee71532f20b892bb35eb954f4wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{4AEE9BAF-50A8-46B6-91E0-E9EF601E12E1}	202305088a016c4ee71532f20b892bb35eb954f4wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{4AEE9BAF-50A8-46B6-91E0-E9EF601E12E1}\WpadDecisionTime = 50d77436d4f4da01	202305088a016c4ee71532f20b892bb35eb954f4wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\3e-10-ae-aa-a4-48	202305088a016c4ee71532f20b892bb35eb954f4wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\3e-10-ae-aa-a4-48\WpadDecisionTime = 50d77436d4f4da01	202305088a016c4ee71532f20b892bb35eb954f4wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	202305088a016c4ee71532f20b892bb35eb954f4wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\3e-10-ae-aa-a4-48\WpadDecision = "0"	202305088a016c4ee71532f20b892bb35eb954f4wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	202305088a016c4ee71532f20b892bb35eb954f4wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	202305088a016c4ee71532f20b892bb35eb954f4wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{4AEE9BAF-50A8-46B6-91E0-E9EF601E12E1}\WpadDecisionReason = "1"	202305088a016c4ee71532f20b892bb35eb954f4wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{4AEE9BAF-50A8-46B6-91E0-E9EF601E12E1}\WpadDecision = "0"	202305088a016c4ee71532f20b892bb35eb954f4wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{4AEE9BAF-50A8-46B6-91E0-E9EF601E12E1}\3e-10-ae-aa-a4-48	202305088a016c4ee71532f20b892bb35eb954f4wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\3e-10-ae-aa-a4-48\WpadDecisionReason = "1"	202305088a016c4ee71532f20b892bb35eb954f4wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	202305088a016c4ee71532f20b892bb35eb954f4wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	202305088a016c4ee71532f20b892bb35eb954f4wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	202305088a016c4ee71532f20b892bb35eb954f4wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	202305088a016c4ee71532f20b892bb35eb954f4wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	202305088a016c4ee71532f20b892bb35eb954f4wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	202305088a016c4ee71532f20b892bb35eb954f4wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0078000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	202305088a016c4ee71532f20b892bb35eb954f4wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{4AEE9BAF-50A8-46B6-91E0-E9EF601E12E1}\WpadNetworkName = "Network 3"	202305088a016c4ee71532f20b892bb35eb954f4wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	202305088a016c4ee71532f20b892bb35eb954f4wannacry.exe

Suspicious behavior: CmdExeWriteProcessMemorySpam 1 IoCs

pid	Process
1228	tasksche.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2288 wrote to memory of 2940	2288	202305088a016c4ee71532f20b892bb35eb954f4wannacry.exe	29
PID 2288 wrote to memory of 2940	2288	202305088a016c4ee71532f20b892bb35eb954f4wannacry.exe	29
PID 2288 wrote to memory of 2940	2288	202305088a016c4ee71532f20b892bb35eb954f4wannacry.exe	29
PID 2288 wrote to memory of 2940	2288	202305088a016c4ee71532f20b892bb35eb954f4wannacry.exe	29
PID 1988 wrote to memory of 1228	1988	cmd.exe	31
PID 1988 wrote to memory of 1228	1988	cmd.exe	31
PID 1988 wrote to memory of 1228	1988	cmd.exe	31
PID 1988 wrote to memory of 1228	1988	cmd.exe	31
PID 1228 wrote to memory of 1508	1228	tasksche.exe	32
PID 1228 wrote to memory of 1508	1228	tasksche.exe	32
PID 1228 wrote to memory of 1508	1228	tasksche.exe	32
PID 1228 wrote to memory of 1508	1228	tasksche.exe	32
PID 1228 wrote to memory of 2880	1228	tasksche.exe	33
PID 1228 wrote to memory of 2880	1228	tasksche.exe	33
PID 1228 wrote to memory of 2880	1228	tasksche.exe	33
PID 1228 wrote to memory of 2880	1228	tasksche.exe	33
PID 2940 wrote to memory of 2548	2940	tasksche.exe	38
PID 2940 wrote to memory of 2548	2940	tasksche.exe	38
PID 2940 wrote to memory of 2548	2940	tasksche.exe	38
PID 2940 wrote to memory of 2548	2940	tasksche.exe	38
PID 2548 wrote to memory of 2584	2548	tasksche.exe	39
PID 2548 wrote to memory of 2584	2548	tasksche.exe	39
PID 2548 wrote to memory of 2584	2548	tasksche.exe	39
PID 2548 wrote to memory of 2584	2548	tasksche.exe	39
PID 2548 wrote to memory of 2628	2548	tasksche.exe	40
PID 2548 wrote to memory of 2628	2548	tasksche.exe	40
PID 2548 wrote to memory of 2628	2548	tasksche.exe	40
PID 2548 wrote to memory of 2628	2548	tasksche.exe	40
PID 2940 wrote to memory of 1776	2940	tasksche.exe	43
PID 2940 wrote to memory of 1776	2940	tasksche.exe	43
PID 2940 wrote to memory of 1776	2940	tasksche.exe	43
PID 2940 wrote to memory of 1776	2940	tasksche.exe	43
PID 2940 wrote to memory of 2004	2940	tasksche.exe	44
PID 2940 wrote to memory of 2004	2940	tasksche.exe	44
PID 2940 wrote to memory of 2004	2940	tasksche.exe	44
PID 2940 wrote to memory of 2004	2940	tasksche.exe	44

Views/modifies file attributes 1 TTPs 3 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
1508	attrib.exe
2584	attrib.exe
1776	attrib.exe

C:\Users\Admin\AppData\Local\Temp\202305088a016c4ee71532f20b892bb35eb954f4wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\202305088a016c4ee71532f20b892bb35eb954f4wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2288
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2940
- - C:\ProgramData\jbkztwfuwyz578\tasksche.exe
    C:\ProgramData\jbkztwfuwyz578\tasksche.exe
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2548
  - - C:\Windows\SysWOW64\attrib.exe
      attrib +h .
      4⤵
      System Location Discovery: System Language Discovery
      Views/modifies file attributes
      PID:2584
  - - C:\Windows\SysWOW64\icacls.exe
      icacls . /grant Everyone:F /T /C /Q
      4⤵
      Modifies file permissions
      System Location Discovery: System Language Discovery
      PID:2628
- - C:\Windows\SysWOW64\attrib.exe
    attrib +h .
    3⤵
    - System Location Discovery: System Language Discovery
    - Views/modifies file attributes
    PID:1776
- - C:\Windows\SysWOW64\icacls.exe
    icacls . /grant Everyone:F /T /C /Q
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:2004

C:\Users\Admin\AppData\Local\Temp\202305088a016c4ee71532f20b892bb35eb954f4wannacry.exe
C:\Users\Admin\AppData\Local\Temp\202305088a016c4ee71532f20b892bb35eb954f4wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2044

C:\Windows\system32\cmd.exe
cmd.exe /c "C:\ProgramData\jbkztwfuwyz578\tasksche.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1988
- C:\ProgramData\jbkztwfuwyz578\tasksche.exe
  C:\ProgramData\jbkztwfuwyz578\tasksche.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: CmdExeWriteProcessMemorySpam
  - Suspicious use of WriteProcessMemory
  PID:1228
- - C:\Windows\SysWOW64\attrib.exe
    attrib +h .
    3⤵
    - System Location Discovery: System Language Discovery
    - Views/modifies file attributes
    PID:1508
- - C:\Windows\SysWOW64\icacls.exe
    icacls . /grant Everyone:F /T /C /Q
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:2880

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

File and Directory Permissions Modification

T1222

Windows File and Directory Permissions Modification

T1222.001

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\tasksche.exe

Filesize
3.4MB

MD5
a27cfbfad728fa5ec8e701a6f93cab26

SHA1
deba582c9c8f059590132395f987c2acf54e7a7f

SHA256
c0057fd3141966017014beb71fa2e31d84d3ddd2a9f20e3e6ee26df8165a531f

SHA512
8c095ccb3367903bc5498d0222ee537ef2bbd4f4204fe9a9a9babe2426d8a377240a15892e248e6e252bf3b229eecc8b1c960136988bf3398941e20a1e542b5d

Download Submit
memory/2044-12-0x0000000000400000-0x0000000000A73000-memory.dmp

Filesize
6.4MB

Download
memory/2288-0-0x0000000000400000-0x0000000000A73000-memory.dmp

Filesize
6.4MB

Download
memory/2288-9-0x0000000000400000-0x0000000000A73000-memory.dmp

Filesize
6.4MB

Download