wannacry | 0dc0bafcf57eb86481be31c43796f7275ec1716424e25c7116a8206d7c2015e6

Analysis

max time kernel
147s
max time network
130s
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 03:11

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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\~SDF1D.tmp	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\~SDF34.tmp	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe

Executes dropped EXE 4 IoCs

pid	Process
1948	!WannaDecryptor!.exe
1116	!WannaDecryptor!.exe
4616	!WannaDecryptor!.exe
3160	!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-1-5-21-1181767204-2009306918-3718769404-1000\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
4736	taskkill.exe
3480	taskkill.exe
892	taskkill.exe
412	taskkill.exe

Suspicious use of AdjustPrivilegeToken 49 IoCs

description	pid	Process
Token: SeDebugPrivilege	4736	taskkill.exe
Token: SeDebugPrivilege	892	taskkill.exe
Token: SeDebugPrivilege	3480	taskkill.exe
Token: SeDebugPrivilege	412	taskkill.exe
Token: SeIncreaseQuotaPrivilege	1744	WMIC.exe
Token: SeSecurityPrivilege	1744	WMIC.exe
Token: SeTakeOwnershipPrivilege	1744	WMIC.exe
Token: SeLoadDriverPrivilege	1744	WMIC.exe
Token: SeSystemProfilePrivilege	1744	WMIC.exe
Token: SeSystemtimePrivilege	1744	WMIC.exe
Token: SeProfSingleProcessPrivilege	1744	WMIC.exe
Token: SeIncBasePriorityPrivilege	1744	WMIC.exe
Token: SeCreatePagefilePrivilege	1744	WMIC.exe
Token: SeBackupPrivilege	1744	WMIC.exe
Token: SeRestorePrivilege	1744	WMIC.exe
Token: SeShutdownPrivilege	1744	WMIC.exe
Token: SeDebugPrivilege	1744	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1744	WMIC.exe
Token: SeRemoteShutdownPrivilege	1744	WMIC.exe
Token: SeUndockPrivilege	1744	WMIC.exe
Token: SeManageVolumePrivilege	1744	WMIC.exe
Token: 33	1744	WMIC.exe
Token: 34	1744	WMIC.exe
Token: 35	1744	WMIC.exe
Token: 36	1744	WMIC.exe
Token: SeIncreaseQuotaPrivilege	1744	WMIC.exe
Token: SeSecurityPrivilege	1744	WMIC.exe
Token: SeTakeOwnershipPrivilege	1744	WMIC.exe
Token: SeLoadDriverPrivilege	1744	WMIC.exe
Token: SeSystemProfilePrivilege	1744	WMIC.exe
Token: SeSystemtimePrivilege	1744	WMIC.exe
Token: SeProfSingleProcessPrivilege	1744	WMIC.exe
Token: SeIncBasePriorityPrivilege	1744	WMIC.exe
Token: SeCreatePagefilePrivilege	1744	WMIC.exe
Token: SeBackupPrivilege	1744	WMIC.exe
Token: SeRestorePrivilege	1744	WMIC.exe
Token: SeShutdownPrivilege	1744	WMIC.exe
Token: SeDebugPrivilege	1744	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1744	WMIC.exe
Token: SeRemoteShutdownPrivilege	1744	WMIC.exe
Token: SeUndockPrivilege	1744	WMIC.exe
Token: SeManageVolumePrivilege	1744	WMIC.exe
Token: 33	1744	WMIC.exe
Token: 34	1744	WMIC.exe
Token: 35	1744	WMIC.exe
Token: 36	1744	WMIC.exe
Token: SeBackupPrivilege	1096	vssvc.exe
Token: SeRestorePrivilege	1096	vssvc.exe
Token: SeAuditPrivilege	1096	vssvc.exe

Suspicious use of SetWindowsHookEx 8 IoCs

pid	Process
1948	!WannaDecryptor!.exe
1948	!WannaDecryptor!.exe
1116	!WannaDecryptor!.exe
1116	!WannaDecryptor!.exe
4616	!WannaDecryptor!.exe
4616	!WannaDecryptor!.exe
3160	!WannaDecryptor!.exe
3160	!WannaDecryptor!.exe

Suspicious use of WriteProcessMemory 39 IoCs

description	pid	Process	procid_target
PID 3004 wrote to memory of 408	3004	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	91
PID 3004 wrote to memory of 408	3004	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	91
PID 3004 wrote to memory of 408	3004	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	91
PID 408 wrote to memory of 4984	408	cmd.exe	93
PID 408 wrote to memory of 4984	408	cmd.exe	93
PID 408 wrote to memory of 4984	408	cmd.exe	93
PID 3004 wrote to memory of 1948	3004	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	95
PID 3004 wrote to memory of 1948	3004	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	95
PID 3004 wrote to memory of 1948	3004	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	95
PID 3004 wrote to memory of 4736	3004	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	96
PID 3004 wrote to memory of 4736	3004	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	96
PID 3004 wrote to memory of 4736	3004	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	96
PID 3004 wrote to memory of 892	3004	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	97
PID 3004 wrote to memory of 892	3004	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	97
PID 3004 wrote to memory of 892	3004	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	97
PID 3004 wrote to memory of 3480	3004	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	98
PID 3004 wrote to memory of 3480	3004	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	98
PID 3004 wrote to memory of 3480	3004	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	98
PID 3004 wrote to memory of 412	3004	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	100
PID 3004 wrote to memory of 412	3004	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	100
PID 3004 wrote to memory of 412	3004	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	100
PID 3004 wrote to memory of 1116	3004	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	109
PID 3004 wrote to memory of 1116	3004	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	109
PID 3004 wrote to memory of 1116	3004	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	109
PID 3004 wrote to memory of 892	3004	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	110
PID 3004 wrote to memory of 892	3004	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	110
PID 3004 wrote to memory of 892	3004	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	110
PID 892 wrote to memory of 4616	892	cmd.exe	112
PID 892 wrote to memory of 4616	892	cmd.exe	112
PID 892 wrote to memory of 4616	892	cmd.exe	112
PID 3004 wrote to memory of 3160	3004	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	114
PID 3004 wrote to memory of 3160	3004	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	114
PID 3004 wrote to memory of 3160	3004	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	114
PID 4616 wrote to memory of 4400	4616	!WannaDecryptor!.exe	115
PID 4616 wrote to memory of 4400	4616	!WannaDecryptor!.exe	115
PID 4616 wrote to memory of 4400	4616	!WannaDecryptor!.exe	115
PID 4400 wrote to memory of 1744	4400	cmd.exe	117
PID 4400 wrote to memory of 1744	4400	cmd.exe	117
PID 4400 wrote to memory of 1744	4400	cmd.exe	117

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:3004
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c 76651715397074.bat
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:408
- - C:\Windows\SysWOW64\cscript.exe
    cscript //nologo c.vbs
    3⤵
    PID:4984
- 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:4736
- C:\Windows\SysWOW64\taskkill.exe
  taskkill /f /im Microsoft.Exchange.*
  2⤵
  - Kills process with taskkill
  - Suspicious use of AdjustPrivilegeToken
  PID:892
- C:\Windows\SysWOW64\taskkill.exe
  taskkill /f /im sqlserver.exe
  2⤵
  - Kills process with taskkill
  - Suspicious use of AdjustPrivilegeToken
  PID:3480
- C:\Windows\SysWOW64\taskkill.exe
  taskkill /f /im sqlwriter.exe
  2⤵
  - Kills process with taskkill
  - Suspicious use of AdjustPrivilegeToken
  PID:412
- C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
  !WannaDecryptor!.exe c
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  PID:1116
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c start /b !WannaDecryptor!.exe v
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:892
- - C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
    !WannaDecryptor!.exe v
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:4616
  - - 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:4400
    - - C:\Windows\SysWOW64\Wbem\WMIC.exe
        
        wmic shadowcopy delete
        5⤵
        Suspicious use of AdjustPrivilegeToken
        
        PID:1744
- C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
  !WannaDecryptor!.exe
  2⤵
  - Executes dropped EXE
  - Sets desktop wallpaper using registry
  - Suspicious use of SetWindowsHookEx
  PID:3160

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=4092,i,11266875042087428226,16669718873272757238,262144 --variations-seed-version --mojo-platform-channel-handle=4088 /prefetch:8
1⤵
PID:4136

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1096

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
89ca3e30013256a8a294b6f57fe0fb9d

SHA1
90927f6cb70f68d3120af5d3d245478b25867d87

SHA256
e3c40091f552394438a2c44cbaa85df69ba8b16c1cb06e36fa38ba47cd6a54de

SHA512
24f42a7d74938cf571b90dc682591690e51741f32ecd3d15748851d80844abd1b9134dcb470d42b6f151fcbf0bb8ba8f70ffdb574462cf29dd94750f535b2961

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

Filesize
136B

MD5
38b55b7bc4d91bf482580ff8b0ae64d1

SHA1
3b605e4780eaed7ace36f8da08e98eedd3d565b3

SHA256
512848f76f3850d3512b5df24cd1f6361eadb0883ead9f798f95d79f8762eb2d

SHA512
049cb0adf208f6b7dd7a27d2c9f3e92a614ff6d2d89612b0db0225a9dbf85276e00ba2136f2ec24126fbecfd20c7c676c37ef5c97baa4d29ed08a6cf97bd1e97

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

Filesize
136B

MD5
2246d09d8676a82a8fa542a834317890

SHA1
3d78939bac5be4ad35841399c23b47f6c2ffa32f

SHA256
62bed0e7196fe9ecb82c9f437a7b56855ff0e13533767c7cd9f2b147f2cf8a76

SHA512
dcec56c81b9c67687b8d1c157c5b5cac95e95543612a068dd7dc60b50074e44743941f07010dc74a2b61820cc7276889e1c62026b7a456e13e7a69a16e2476b5

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

Filesize
136B

MD5
0297f2298d15c25d03c46236b3a33c1a

SHA1
21f168f6960930cbf02c8bdf1f17e0119effba12

SHA256
2ca01068ece1e53ee58c0f454123951af4a6cf73e69e0b03dcaedee0dc2f5262

SHA512
9d5e080688ec14c20b8670158b108c51d8ab8560b315ed3eff9e6994f385911e1bc3ad1ed1c16b18290907785342d398b5e39ecbc5d0cce34bdf97df876f72d8

Download Submit
C:\Users\Admin\AppData\Local\Temp\76651715397074.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
8c703a1078107c10693272e67291c5c8

SHA1
684262aced4e262f56355aa33a8ae32827fe6ee6

SHA256
a26bf0f33aceb3dfb24b89ee4b2e2c03a2d2e33590de19c4d07953587025b873

SHA512
c1989a616d10cfda7eb9960e8f7d38562ff7e5d9e00514d69ed3cf6ace0b66c3eb35e3f6e322784210a0ab7a5ac22139f5fc63dabc9ea735b9f8666e1cee645f

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/3004-6-0x0000000010000000-0x0000000010012000-memory.dmp

Filesize
72KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads