wannacry | be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844

Resubmissions

09-10-2024 12:00

241009-n6erjatfnk 10

09-10-2024 06:17

241009-g127baxekr 10

Analysis

max time kernel
51s
max time network
35s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
09-10-2024 06:17

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General

Target

WannaCry.exe
Size

224KB
MD5

5c7fb0927db37372da25f270708103a2
SHA1

120ed9279d85cbfa56e5b7779ffa7162074f7a29
SHA256

be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844
SHA512

a15f97fad744ccf5f620e5aabb81f48507327b898a9aa4287051464019e0f89224c484e9691812e166471af9beaddcfc3deb2ba878658761f4800663beef7206
SSDEEP

3072:Y059femWRwTs/dbelj0X8/j84pcRXPlU3Upt3or4H84lK8PtpLzLsR/EfcZ:+5RwTs/dSXj84mRXPemxdBlPvLzLeZ

Score

10^/10

wannacry defense_evasion discovery execution impact persistence ransomware spyware stealer worm

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\!Please Read Me!.txt

Family

wannacry

Ransom Note

Q: What's wrong with my files? A: Ooops, your important files are encrypted. It means you will not be able to access them anymore until they are decrypted. If you follow our instructions we guarantee that you can decrypt all your files quickly and safely! Let's start decrypting! Q: What do I do? A: First, you need to pay service fees for the decryption. Please send $300 worth of bitcoin to this bitcoin address: 15zGqZCTcys6eCjDkE3DypCjXi6QWRV6V1 Next, please find the decrypt software on your desktop, an executable file named "!WannaDecryptor!.exe". If it does not exsit, download the software from the address below. (You may need to disable your antivirus for a while.) rar password: wcry123 Run and follow the instructions! �

Wallets

15zGqZCTcys6eCjDkE3DypCjXi6QWRV6V1

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Deletes shadow copies 3 TTPs
Ransomware often targets backup files to inhibit system recovery.
ransomware defense_evasion impact execution

File Deletion
T1070.004

Inhibit System Recovery
T1490

Windows Management Instrumentation
T1047

Drops startup file 2 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\~SDA9A9.tmp	WannaCry.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\~SDA9B0.tmp	WannaCry.exe

Executes dropped EXE 4 IoCs

pid	Process
880	!WannaDecryptor!.exe
3788	!WannaDecryptor!.exe
3760	!WannaDecryptor!.exe
1028	!WannaDecryptor!.exe

Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Microsoft Update Task Scheduler = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\WannaCry.exe\" /r"	WannaCry.exe

Sets desktop wallpaper using registry 2 TTPs 1 IoCs

ransomware

Defacement

T1491

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\Desktop\\!WannaCryptor!.bmp"	!WannaDecryptor!.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 14 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	taskkill.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	!WannaDecryptor!.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	taskkill.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	taskkill.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	!WannaDecryptor!.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WannaCry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cscript.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	!WannaDecryptor!.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	!WannaDecryptor!.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WMIC.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	taskkill.exe

Kills process with taskkill 4 IoCs

evasion

pid	Process
4324	taskkill.exe
5052	taskkill.exe
2160	taskkill.exe
1588	taskkill.exe

Suspicious use of AdjustPrivilegeToken 49 IoCs

description	pid	Process
Token: SeDebugPrivilege	2160	taskkill.exe
Token: SeDebugPrivilege	4324	taskkill.exe
Token: SeDebugPrivilege	5052	taskkill.exe
Token: SeDebugPrivilege	1588	taskkill.exe
Token: SeIncreaseQuotaPrivilege	3948	WMIC.exe
Token: SeSecurityPrivilege	3948	WMIC.exe
Token: SeTakeOwnershipPrivilege	3948	WMIC.exe
Token: SeLoadDriverPrivilege	3948	WMIC.exe
Token: SeSystemProfilePrivilege	3948	WMIC.exe
Token: SeSystemtimePrivilege	3948	WMIC.exe
Token: SeProfSingleProcessPrivilege	3948	WMIC.exe
Token: SeIncBasePriorityPrivilege	3948	WMIC.exe
Token: SeCreatePagefilePrivilege	3948	WMIC.exe
Token: SeBackupPrivilege	3948	WMIC.exe
Token: SeRestorePrivilege	3948	WMIC.exe
Token: SeShutdownPrivilege	3948	WMIC.exe
Token: SeDebugPrivilege	3948	WMIC.exe
Token: SeSystemEnvironmentPrivilege	3948	WMIC.exe
Token: SeRemoteShutdownPrivilege	3948	WMIC.exe
Token: SeUndockPrivilege	3948	WMIC.exe
Token: SeManageVolumePrivilege	3948	WMIC.exe
Token: 33	3948	WMIC.exe
Token: 34	3948	WMIC.exe
Token: 35	3948	WMIC.exe
Token: 36	3948	WMIC.exe
Token: SeIncreaseQuotaPrivilege	3948	WMIC.exe
Token: SeSecurityPrivilege	3948	WMIC.exe
Token: SeTakeOwnershipPrivilege	3948	WMIC.exe
Token: SeLoadDriverPrivilege	3948	WMIC.exe
Token: SeSystemProfilePrivilege	3948	WMIC.exe
Token: SeSystemtimePrivilege	3948	WMIC.exe
Token: SeProfSingleProcessPrivilege	3948	WMIC.exe
Token: SeIncBasePriorityPrivilege	3948	WMIC.exe
Token: SeCreatePagefilePrivilege	3948	WMIC.exe
Token: SeBackupPrivilege	3948	WMIC.exe
Token: SeRestorePrivilege	3948	WMIC.exe
Token: SeShutdownPrivilege	3948	WMIC.exe
Token: SeDebugPrivilege	3948	WMIC.exe
Token: SeSystemEnvironmentPrivilege	3948	WMIC.exe
Token: SeRemoteShutdownPrivilege	3948	WMIC.exe
Token: SeUndockPrivilege	3948	WMIC.exe
Token: SeManageVolumePrivilege	3948	WMIC.exe
Token: 33	3948	WMIC.exe
Token: 34	3948	WMIC.exe
Token: 35	3948	WMIC.exe
Token: 36	3948	WMIC.exe
Token: SeBackupPrivilege	4276	vssvc.exe
Token: SeRestorePrivilege	4276	vssvc.exe
Token: SeAuditPrivilege	4276	vssvc.exe

Suspicious use of SetWindowsHookEx 8 IoCs

pid	Process
880	!WannaDecryptor!.exe
880	!WannaDecryptor!.exe
3788	!WannaDecryptor!.exe
3788	!WannaDecryptor!.exe
3760	!WannaDecryptor!.exe
3760	!WannaDecryptor!.exe
1028	!WannaDecryptor!.exe
1028	!WannaDecryptor!.exe

Suspicious use of WriteProcessMemory 39 IoCs

description	pid	Process	procid_target
PID 2452 wrote to memory of 2608	2452	WannaCry.exe	83
PID 2452 wrote to memory of 2608	2452	WannaCry.exe	83
PID 2452 wrote to memory of 2608	2452	WannaCry.exe	83
PID 2608 wrote to memory of 4468	2608	cmd.exe	86
PID 2608 wrote to memory of 4468	2608	cmd.exe	86
PID 2608 wrote to memory of 4468	2608	cmd.exe	86
PID 2452 wrote to memory of 880	2452	WannaCry.exe	89
PID 2452 wrote to memory of 880	2452	WannaCry.exe	89
PID 2452 wrote to memory of 880	2452	WannaCry.exe	89
PID 2452 wrote to memory of 4324	2452	WannaCry.exe	90
PID 2452 wrote to memory of 4324	2452	WannaCry.exe	90
PID 2452 wrote to memory of 4324	2452	WannaCry.exe	90
PID 2452 wrote to memory of 5052	2452	WannaCry.exe	91
PID 2452 wrote to memory of 5052	2452	WannaCry.exe	91
PID 2452 wrote to memory of 5052	2452	WannaCry.exe	91
PID 2452 wrote to memory of 2160	2452	WannaCry.exe	92
PID 2452 wrote to memory of 2160	2452	WannaCry.exe	92
PID 2452 wrote to memory of 2160	2452	WannaCry.exe	92
PID 2452 wrote to memory of 1588	2452	WannaCry.exe	93
PID 2452 wrote to memory of 1588	2452	WannaCry.exe	93
PID 2452 wrote to memory of 1588	2452	WannaCry.exe	93
PID 2452 wrote to memory of 3788	2452	WannaCry.exe	102
PID 2452 wrote to memory of 3788	2452	WannaCry.exe	102
PID 2452 wrote to memory of 3788	2452	WannaCry.exe	102
PID 2452 wrote to memory of 4968	2452	WannaCry.exe	103
PID 2452 wrote to memory of 4968	2452	WannaCry.exe	103
PID 2452 wrote to memory of 4968	2452	WannaCry.exe	103
PID 4968 wrote to memory of 3760	4968	cmd.exe	105
PID 4968 wrote to memory of 3760	4968	cmd.exe	105
PID 4968 wrote to memory of 3760	4968	cmd.exe	105
PID 2452 wrote to memory of 1028	2452	WannaCry.exe	106
PID 2452 wrote to memory of 1028	2452	WannaCry.exe	106
PID 2452 wrote to memory of 1028	2452	WannaCry.exe	106
PID 3760 wrote to memory of 4332	3760	!WannaDecryptor!.exe	107
PID 3760 wrote to memory of 4332	3760	!WannaDecryptor!.exe	107
PID 3760 wrote to memory of 4332	3760	!WannaDecryptor!.exe	107
PID 4332 wrote to memory of 3948	4332	cmd.exe	109
PID 4332 wrote to memory of 3948	4332	cmd.exe	109
PID 4332 wrote to memory of 3948	4332	cmd.exe	109

Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
ransomware

C:\Users\Admin\AppData\Local\Temp\WannaCry.exe
"C:\Users\Admin\AppData\Local\Temp\WannaCry.exe"
1⤵
- Drops startup file
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2452
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c 189701728454642.bat
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2608
- - C:\Windows\SysWOW64\cscript.exe
    cscript //nologo c.vbs
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4468
- C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
  !WannaDecryptor!.exe f
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:880
- C:\Windows\SysWOW64\taskkill.exe
  taskkill /f /im MSExchange*
  2⤵
  - System Location Discovery: System Language Discovery
  - Kills process with taskkill
  - Suspicious use of AdjustPrivilegeToken
  PID:4324
- C:\Windows\SysWOW64\taskkill.exe
  taskkill /f /im Microsoft.Exchange.*
  2⤵
  - System Location Discovery: System Language Discovery
  - Kills process with taskkill
  - Suspicious use of AdjustPrivilegeToken
  PID:5052
- C:\Windows\SysWOW64\taskkill.exe
  taskkill /f /im sqlserver.exe
  2⤵
  - System Location Discovery: System Language Discovery
  - Kills process with taskkill
  - Suspicious use of AdjustPrivilegeToken
  PID:2160
- C:\Windows\SysWOW64\taskkill.exe
  taskkill /f /im sqlwriter.exe
  2⤵
  - System Location Discovery: System Language Discovery
  - Kills process with taskkill
  - Suspicious use of AdjustPrivilegeToken
  PID:1588
- C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
  !WannaDecryptor!.exe c
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:3788
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c start /b !WannaDecryptor!.exe v
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4968
- - C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
    !WannaDecryptor!.exe v
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:3760
  - - C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c vssadmin delete shadows /all /quiet & wmic shadowcopy delete & bcdedit /set {default} bootstatuspolicy ignoreallfailures & bcdedit /set {default} recoveryenabled no & wbadmin delete catalog -quiet
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:4332
    - - C:\Windows\SysWOW64\Wbem\WMIC.exe
        
        wmic shadowcopy delete
        5⤵
        System Location Discovery: System Language Discovery
        Suspicious use of AdjustPrivilegeToken
        
        PID:3948
- C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
  !WannaDecryptor!.exe
  2⤵
  - Executes dropped EXE
  - Sets desktop wallpaper using registry
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:1028

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4276

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Windows Management Instrumentation

T1047

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Indicator Removal

T1070

File Deletion

T1070.004

Modify Registry

T1112

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Defacement

T1491

Inhibit System Recovery

T1490

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Downloads

C:\Users\Admin\AppData\Local\Temp\!Please Read Me!.txt

Filesize
797B

MD5
afa18cf4aa2660392111763fb93a8c3d

SHA1
c219a3654a5f41ce535a09f2a188a464c3f5baf5

SHA256
227082c719fd4394c1f2311a0877d8a302c5b092bcc49f853a5cf3d2945f42b0

SHA512
4161f250d59b7d4d4a6c4f16639d66d21b2a9606de956d22ec00bedb006643fedbbb8e4cde9f6c0c977285918648314883ca91f3442d1125593bf2605f2d5c6b

Download Submit
C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe.lnk

Filesize
1KB

MD5
89c5a0d75b67dc0de09114e05113bb9d

SHA1
7edcce8692c28f20304c249caa724e6b344e33ee

SHA256
1baec513e1d9a6b0f4c70424fd8838c5261b053d93f8e7dbb68fd2d16f952686

SHA512
9f8ccf2aadccd8c9ed531a2b956b783b5dd961dddd6ac58a8d2e08f808306d19e2c532db05c2e05718dc736481f29beaa8bc7ecaf4b0834435117afdb6f94071

Download Submit
C:\Users\Admin\AppData\Local\Temp\00000000.res

Filesize
136B

MD5
642428ab5176b0d472ed9ff94d1d737d

SHA1
6a3ab3190ac27072bbcc8343745c9298ae195032

SHA256
d3a3adc00b05ce0854eb0a5c799325f1b9f9cab6d822bc2082858b43fd884610

SHA512
ed180098896f473512f53e77f61c483264b64c6c7b3d6de139b99bdf41c8f33d2880e6c6f8cf3a03e6343654ff400ccd309aee8f00b4cb304a17795ca87ba718

Download Submit
C:\Users\Admin\AppData\Local\Temp\00000000.res

Filesize
136B

MD5
8dc4ce8ded7124ca54d34fbccb9e5360

SHA1
8afb5baad95c1d0db348016c9bdee1f169c4a59c

SHA256
3dc808a45116f8308ad0671cb93b8fd581fe2dd1dfa9f0ffebddce6fb2b1942c

SHA512
57b49edc57cbcafa281e0caa8299070cc4434e2a64ebe88d10c4c6f387fe375565bccb96afd1503a5b6c62334dbee1ce55ce80f64af6a9b5fe35de5b0d62d39d

Download Submit
C:\Users\Admin\AppData\Local\Temp\00000000.res

Filesize
136B

MD5
4c59639255d91b6e79a58052b3845d80

SHA1
462e0ea1a26d6de96955dd6899fd9c2a8ba8f503

SHA256
bc7e016cd01d2791602a28ae8ca5857fe56efe090a6b661c745abacd3d9ee141

SHA512
83a462cefdb4ab68c01ac3396ada650ad6b87e92f64b937db60d51f5ce6c6659752435c2e426aea3306e4c103520d458791a91da9038ef1ffe1d00c33e4bd43b

Download Submit
C:\Users\Admin\AppData\Local\Temp\189701728454642.bat

Filesize
336B

MD5
3540e056349c6972905dc9706cd49418

SHA1
492c20442d34d45a6d6790c720349b11ec591cde

SHA256
73872a89440a2cba9d22bf4961c3d499ea2c72979c30c455f942374292fedadc

SHA512
c949d147100aef59e382c03abf7b162ae62a4d43456eebd730fbedcf5f95f5e1a24f6e349690d52d75331878a6ee8f6b88a7162ee9cf2a49e142196b12d0133c

Download Submit
C:\Users\Admin\AppData\Local\Temp\c.vbs

Filesize
219B

MD5
5f6d40ca3c34b470113ed04d06a88ff4

SHA1
50629e7211ae43e32060686d6be17ebd492fd7aa

SHA256
0fb5039a2fe7e90cdf3f22140d7f2103f94689b15609efe0edcc8430dd772fc1

SHA512
4d4aa1abd2c9183202fd3f0a65b37f07ee0166ba6561f094c13c8ea59752c7bdd960e37c49583746d4464bc3b1dc0b63a1fe36a37ce7e5709cd76ed433befe35

Download Submit
C:\Users\Admin\AppData\Local\Temp\c.wry

Filesize
628B

MD5
a0b859f14b87fc39a6857dc356daa0cf

SHA1
ce6c5fd9e2c78efc626856595ebd7d8b5bcc7617

SHA256
a3b6df77c066eb5a12d371dc83c09a2e01584d6a1fb19d017f9b3cca252c469a

SHA512
bceb826156fbf00645e6b6c151503f2688bf8c89231f92285eb8ab19a2dfbdcbfa4c042e11b440805ec77d0466420cb4e8f12bf6c8eccd133b11f2df40fe1565

Download Submit
C:\Users\Admin\AppData\Local\Temp\m.wry

Filesize
42KB

MD5
980b08bac152aff3f9b0136b616affa5

SHA1
2a9c9601ea038f790cc29379c79407356a3d25a3

SHA256
402046ada270528c9ac38bbfa0152836fe30fb8e12192354e53b8397421430d9

SHA512
100cda1f795781042b012498afd783fd6ff03b0068dbd07b2c2e163cd95e6c6e00755ce16b02b017693c9febc149ed02df9df9b607e2b9cca4b07e5bd420f496

Download Submit
C:\Users\Admin\AppData\Local\Temp\u.wry

Filesize
236KB

MD5
cf1416074cd7791ab80a18f9e7e219d9

SHA1
276d2ec82c518d887a8a3608e51c56fa28716ded

SHA256
78e3f87f31688355c0f398317b2d87d803bd87ee3656c5a7c80f0561ec8606df

SHA512
0bb0843a90edacaf1407e6a7273a9fbb896701635e4d9467392b7350ad25a1bec0c1ceef36737b4af5e5841936f4891436eded0533aa3d74c9a54efa42f024c5

Download Submit
memory/2452-6-0x0000000010000000-0x0000000010012000-memory.dmp

Filesize
72KB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads