wannacry | 0dc0bafcf57eb86481be31c43796f7275ec1716424e25c7116a8206d7c2015e6

Analysis

max time kernel
149s
max time network
99s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
11/05/2024, 03:09

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General

Target

be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.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 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\~SD5CCE.tmp	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\~SD5CD5.tmp	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe

Executes dropped EXE 4 IoCs

pid	Process
1948	!WannaDecryptor!.exe
876	!WannaDecryptor!.exe
1548	!WannaDecryptor!.exe
4456	!WannaDecryptor!.exe

Reads user/profile data of web browsers 2 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

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\\be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe\" /r"	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.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-1-5-21-4124900551-4068476067-3491212533-1000\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

Kills process with taskkill 4 IoCs

evasion

pid	Process
4520	taskkill.exe
5028	taskkill.exe
3256	taskkill.exe
2924	taskkill.exe

Suspicious use of AdjustPrivilegeToken 49 IoCs

description	pid	Process
Token: SeDebugPrivilege	5028	taskkill.exe
Token: SeDebugPrivilege	3256	taskkill.exe
Token: SeDebugPrivilege	4520	taskkill.exe
Token: SeDebugPrivilege	2924	taskkill.exe
Token: SeIncreaseQuotaPrivilege	4512	WMIC.exe
Token: SeSecurityPrivilege	4512	WMIC.exe
Token: SeTakeOwnershipPrivilege	4512	WMIC.exe
Token: SeLoadDriverPrivilege	4512	WMIC.exe
Token: SeSystemProfilePrivilege	4512	WMIC.exe
Token: SeSystemtimePrivilege	4512	WMIC.exe
Token: SeProfSingleProcessPrivilege	4512	WMIC.exe
Token: SeIncBasePriorityPrivilege	4512	WMIC.exe
Token: SeCreatePagefilePrivilege	4512	WMIC.exe
Token: SeBackupPrivilege	4512	WMIC.exe
Token: SeRestorePrivilege	4512	WMIC.exe
Token: SeShutdownPrivilege	4512	WMIC.exe
Token: SeDebugPrivilege	4512	WMIC.exe
Token: SeSystemEnvironmentPrivilege	4512	WMIC.exe
Token: SeRemoteShutdownPrivilege	4512	WMIC.exe
Token: SeUndockPrivilege	4512	WMIC.exe
Token: SeManageVolumePrivilege	4512	WMIC.exe
Token: 33	4512	WMIC.exe
Token: 34	4512	WMIC.exe
Token: 35	4512	WMIC.exe
Token: 36	4512	WMIC.exe
Token: SeIncreaseQuotaPrivilege	4512	WMIC.exe
Token: SeSecurityPrivilege	4512	WMIC.exe
Token: SeTakeOwnershipPrivilege	4512	WMIC.exe
Token: SeLoadDriverPrivilege	4512	WMIC.exe
Token: SeSystemProfilePrivilege	4512	WMIC.exe
Token: SeSystemtimePrivilege	4512	WMIC.exe
Token: SeProfSingleProcessPrivilege	4512	WMIC.exe
Token: SeIncBasePriorityPrivilege	4512	WMIC.exe
Token: SeCreatePagefilePrivilege	4512	WMIC.exe
Token: SeBackupPrivilege	4512	WMIC.exe
Token: SeRestorePrivilege	4512	WMIC.exe
Token: SeShutdownPrivilege	4512	WMIC.exe
Token: SeDebugPrivilege	4512	WMIC.exe
Token: SeSystemEnvironmentPrivilege	4512	WMIC.exe
Token: SeRemoteShutdownPrivilege	4512	WMIC.exe
Token: SeUndockPrivilege	4512	WMIC.exe
Token: SeManageVolumePrivilege	4512	WMIC.exe
Token: 33	4512	WMIC.exe
Token: 34	4512	WMIC.exe
Token: 35	4512	WMIC.exe
Token: 36	4512	WMIC.exe
Token: SeBackupPrivilege	1912	vssvc.exe
Token: SeRestorePrivilege	1912	vssvc.exe
Token: SeAuditPrivilege	1912	vssvc.exe

Suspicious use of SetWindowsHookEx 8 IoCs

pid	Process
1948	!WannaDecryptor!.exe
1948	!WannaDecryptor!.exe
876	!WannaDecryptor!.exe
876	!WannaDecryptor!.exe
1548	!WannaDecryptor!.exe
1548	!WannaDecryptor!.exe
4456	!WannaDecryptor!.exe
4456	!WannaDecryptor!.exe

Suspicious use of WriteProcessMemory 39 IoCs

description	pid	Process	procid_target
PID 1540 wrote to memory of 3148	1540	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	83
PID 1540 wrote to memory of 3148	1540	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	83
PID 1540 wrote to memory of 3148	1540	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	83
PID 3148 wrote to memory of 4556	3148	cmd.exe	86
PID 3148 wrote to memory of 4556	3148	cmd.exe	86
PID 3148 wrote to memory of 4556	3148	cmd.exe	86
PID 1540 wrote to memory of 1948	1540	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	88
PID 1540 wrote to memory of 1948	1540	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	88
PID 1540 wrote to memory of 1948	1540	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	88
PID 1540 wrote to memory of 3256	1540	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	90
PID 1540 wrote to memory of 3256	1540	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	90
PID 1540 wrote to memory of 3256	1540	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	90
PID 1540 wrote to memory of 5028	1540	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	91
PID 1540 wrote to memory of 5028	1540	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	91
PID 1540 wrote to memory of 5028	1540	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	91
PID 1540 wrote to memory of 4520	1540	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	92
PID 1540 wrote to memory of 4520	1540	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	92
PID 1540 wrote to memory of 4520	1540	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	92
PID 1540 wrote to memory of 2924	1540	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	93
PID 1540 wrote to memory of 2924	1540	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	93
PID 1540 wrote to memory of 2924	1540	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	93
PID 1540 wrote to memory of 876	1540	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	102
PID 1540 wrote to memory of 876	1540	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	102
PID 1540 wrote to memory of 876	1540	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	102
PID 1540 wrote to memory of 1664	1540	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	103
PID 1540 wrote to memory of 1664	1540	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	103
PID 1540 wrote to memory of 1664	1540	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	103
PID 1664 wrote to memory of 1548	1664	cmd.exe	105
PID 1664 wrote to memory of 1548	1664	cmd.exe	105
PID 1664 wrote to memory of 1548	1664	cmd.exe	105
PID 1540 wrote to memory of 4456	1540	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	107
PID 1540 wrote to memory of 4456	1540	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	107
PID 1540 wrote to memory of 4456	1540	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	107
PID 1548 wrote to memory of 1232	1548	!WannaDecryptor!.exe	108
PID 1548 wrote to memory of 1232	1548	!WannaDecryptor!.exe	108
PID 1548 wrote to memory of 1232	1548	!WannaDecryptor!.exe	108
PID 1232 wrote to memory of 4512	1232	cmd.exe	110
PID 1232 wrote to memory of 4512	1232	cmd.exe	110
PID 1232 wrote to memory of 4512	1232	cmd.exe	110

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\be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe
"C:\Users\Admin\AppData\Local\Temp\be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe"
1⤵
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1540
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c 202661715396969.bat
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3148
- - C:\Windows\SysWOW64\cscript.exe
    cscript //nologo c.vbs
    3⤵
    PID:4556
- C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
  !WannaDecryptor!.exe f
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  PID:1948
- C:\Windows\SysWOW64\taskkill.exe
  taskkill /f /im MSExchange*
  2⤵
  - Kills process with taskkill
  - Suspicious use of AdjustPrivilegeToken
  PID:3256
- C:\Windows\SysWOW64\taskkill.exe
  taskkill /f /im Microsoft.Exchange.*
  2⤵
  - Kills process with taskkill
  - Suspicious use of AdjustPrivilegeToken
  PID:5028
- C:\Windows\SysWOW64\taskkill.exe
  taskkill /f /im sqlserver.exe
  2⤵
  - Kills process with taskkill
  - Suspicious use of AdjustPrivilegeToken
  PID:4520
- C:\Windows\SysWOW64\taskkill.exe
  taskkill /f /im sqlwriter.exe
  2⤵
  - Kills process with taskkill
  - Suspicious use of AdjustPrivilegeToken
  PID:2924
- C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
  !WannaDecryptor!.exe c
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  PID:876
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c start /b !WannaDecryptor!.exe v
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1664
- - C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
    !WannaDecryptor!.exe v
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:1548
  - - 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⤵
      Suspicious use of WriteProcessMemory
      PID:1232
    - - C:\Windows\SysWOW64\Wbem\WMIC.exe
        
        wmic shadowcopy delete
        5⤵
        Suspicious use of AdjustPrivilegeToken
        
        PID:4512
- C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
  !WannaDecryptor!.exe
  2⤵
  - Executes dropped EXE
  - Sets desktop wallpaper using registry
  - Suspicious use of SetWindowsHookEx
  PID:4456

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1912

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

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

System Information Discovery

T1082

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
52d729368cd94fcaa13ea97b9fa34b99

SHA1
7cd726149b97053589e95b4278b0d0878f76070a

SHA256
189170a67a6e9ecfbc362a3e073e59f41b32ea436ea441743d8ac9df7ed5b4c6

SHA512
022ca8a67cd78e4b6cc60b47e15bb17217602b7e2a5121eb0c370fd7fe07ee5b8d4e802398280ed8838d07addb0ffdb5f9185f928fb7914e40870114c5b7b813

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

Filesize
136B

MD5
a565d7870a9d20dff2238c9dd833a2bd

SHA1
9185861e42112e215f41bee9b5130fc26a5bde1e

SHA256
2114462cc687b2bbe3d5c3ce1ff3df2b6746e2fa797d3964d21e0ddcd29f3f97

SHA512
60bacf3578710034def837d9e887bd6ab4c1bc6eefba7b5636822f42b47e4edb27de612a26c4aaa2cf09adce0bbf33353480693123389bdb19a6e502286622eb

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

Filesize
136B

MD5
dbb3f926a9bd9fe79e23d51c1250f300

SHA1
2a7a7609c0c96096f8fe4bf45d0bf0629c1e1531

SHA256
a9e50c55badf859edc28e4920442bd0ae95cfce6228e4fb999a79543814dd79f

SHA512
22ceeeb19e2a84c92368b396f40effa300af57d60af7c1fdac712f11c220ba5aae90a6da033cca1d2f1a0eefd1d32ba5c0d014d758e990dcd6e4471f2458ea9a

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

Filesize
136B

MD5
c8b48fca5864c9582cf3f0ddf0bff513

SHA1
49a66d4437fc7bf5145cb645fcac6139e17333ce

SHA256
46df0f2de4d87aebe507bbef40be2f0dbc81774e569db7962c0399cf35600399

SHA512
3e72c90259460046dfb02385dd16dd669ca7f3b545d25197c9f47b69ad1d9ac8004562a7ae4766510898c2d6bd61ce6eefd86377799b3a3728606f2b3adfd229

Download Submit
C:\Users\Admin\AppData\Local\Temp\202661715396969.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
87cbc96a58cfd26974bdc33985123055

SHA1
c46b7fcc0e8541e0ade55853aacac6b5d7259c82

SHA256
e796c475b9013f62b0b6466046652d980908933f8a357e45b1871e930626d286

SHA512
edbdbec530485405002ae75ba1f76dac5f7c771cd22d478bad0bd0a1c2dc0ed54ed7540f0888f1997cf90b49ab94284830bd50a56c0583b9e815abf90db79424

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/1540-6-0x0000000010000000-0x0000000010012000-memory.dmp

Filesize
72KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads