wannacry | 0dc0bafcf57eb86481be31c43796f7275ec1716424e25c7116a8206d7c2015e6

Analysis

max time kernel
148s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
13-05-2024 19:05

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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\~SD6034.tmp	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\~SD604A.tmp	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe

Executes dropped EXE 4 IoCs

pid	Process
3892	!WannaDecryptor!.exe
976	!WannaDecryptor!.exe
1596	!WannaDecryptor!.exe
2296	!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-1-5-21-1337824034-2731376981-3755436523-1000\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
1120	taskkill.exe
3872	taskkill.exe
3416	taskkill.exe
3984	taskkill.exe

Suspicious use of AdjustPrivilegeToken 49 IoCs

description	pid	Process
Token: SeDebugPrivilege	3984	taskkill.exe
Token: SeDebugPrivilege	3872	taskkill.exe
Token: SeDebugPrivilege	1120	taskkill.exe
Token: SeDebugPrivilege	3416	taskkill.exe
Token: SeIncreaseQuotaPrivilege	4324	WMIC.exe
Token: SeSecurityPrivilege	4324	WMIC.exe
Token: SeTakeOwnershipPrivilege	4324	WMIC.exe
Token: SeLoadDriverPrivilege	4324	WMIC.exe
Token: SeSystemProfilePrivilege	4324	WMIC.exe
Token: SeSystemtimePrivilege	4324	WMIC.exe
Token: SeProfSingleProcessPrivilege	4324	WMIC.exe
Token: SeIncBasePriorityPrivilege	4324	WMIC.exe
Token: SeCreatePagefilePrivilege	4324	WMIC.exe
Token: SeBackupPrivilege	4324	WMIC.exe
Token: SeRestorePrivilege	4324	WMIC.exe
Token: SeShutdownPrivilege	4324	WMIC.exe
Token: SeDebugPrivilege	4324	WMIC.exe
Token: SeSystemEnvironmentPrivilege	4324	WMIC.exe
Token: SeRemoteShutdownPrivilege	4324	WMIC.exe
Token: SeUndockPrivilege	4324	WMIC.exe
Token: SeManageVolumePrivilege	4324	WMIC.exe
Token: 33	4324	WMIC.exe
Token: 34	4324	WMIC.exe
Token: 35	4324	WMIC.exe
Token: 36	4324	WMIC.exe
Token: SeIncreaseQuotaPrivilege	4324	WMIC.exe
Token: SeSecurityPrivilege	4324	WMIC.exe
Token: SeTakeOwnershipPrivilege	4324	WMIC.exe
Token: SeLoadDriverPrivilege	4324	WMIC.exe
Token: SeSystemProfilePrivilege	4324	WMIC.exe
Token: SeSystemtimePrivilege	4324	WMIC.exe
Token: SeProfSingleProcessPrivilege	4324	WMIC.exe
Token: SeIncBasePriorityPrivilege	4324	WMIC.exe
Token: SeCreatePagefilePrivilege	4324	WMIC.exe
Token: SeBackupPrivilege	4324	WMIC.exe
Token: SeRestorePrivilege	4324	WMIC.exe
Token: SeShutdownPrivilege	4324	WMIC.exe
Token: SeDebugPrivilege	4324	WMIC.exe
Token: SeSystemEnvironmentPrivilege	4324	WMIC.exe
Token: SeRemoteShutdownPrivilege	4324	WMIC.exe
Token: SeUndockPrivilege	4324	WMIC.exe
Token: SeManageVolumePrivilege	4324	WMIC.exe
Token: 33	4324	WMIC.exe
Token: 34	4324	WMIC.exe
Token: 35	4324	WMIC.exe
Token: 36	4324	WMIC.exe
Token: SeBackupPrivilege	5060	vssvc.exe
Token: SeRestorePrivilege	5060	vssvc.exe
Token: SeAuditPrivilege	5060	vssvc.exe

Suspicious use of SetWindowsHookEx 8 IoCs

pid	Process
3892	!WannaDecryptor!.exe
3892	!WannaDecryptor!.exe
976	!WannaDecryptor!.exe
976	!WannaDecryptor!.exe
1596	!WannaDecryptor!.exe
1596	!WannaDecryptor!.exe
2296	!WannaDecryptor!.exe
2296	!WannaDecryptor!.exe

Suspicious use of WriteProcessMemory 39 IoCs

description	pid	Process	procid_target
PID 724 wrote to memory of 4856	724	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	83
PID 724 wrote to memory of 4856	724	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	83
PID 724 wrote to memory of 4856	724	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	83
PID 4856 wrote to memory of 228	4856	cmd.exe	85
PID 4856 wrote to memory of 228	4856	cmd.exe	85
PID 4856 wrote to memory of 228	4856	cmd.exe	85
PID 724 wrote to memory of 3892	724	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	88
PID 724 wrote to memory of 3892	724	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	88
PID 724 wrote to memory of 3892	724	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	88
PID 724 wrote to memory of 1120	724	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	90
PID 724 wrote to memory of 1120	724	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	90
PID 724 wrote to memory of 1120	724	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	90
PID 724 wrote to memory of 3984	724	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	91
PID 724 wrote to memory of 3984	724	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	91
PID 724 wrote to memory of 3984	724	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	91
PID 724 wrote to memory of 3416	724	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	92
PID 724 wrote to memory of 3416	724	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	92
PID 724 wrote to memory of 3416	724	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	92
PID 724 wrote to memory of 3872	724	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	93
PID 724 wrote to memory of 3872	724	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	93
PID 724 wrote to memory of 3872	724	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	93
PID 724 wrote to memory of 976	724	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	103
PID 724 wrote to memory of 976	724	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	103
PID 724 wrote to memory of 976	724	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	103
PID 724 wrote to memory of 3388	724	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	104
PID 724 wrote to memory of 3388	724	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	104
PID 724 wrote to memory of 3388	724	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	104
PID 3388 wrote to memory of 1596	3388	cmd.exe	106
PID 3388 wrote to memory of 1596	3388	cmd.exe	106
PID 3388 wrote to memory of 1596	3388	cmd.exe	106
PID 724 wrote to memory of 2296	724	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	108
PID 724 wrote to memory of 2296	724	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	108
PID 724 wrote to memory of 2296	724	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	108
PID 1596 wrote to memory of 4844	1596	!WannaDecryptor!.exe	109
PID 1596 wrote to memory of 4844	1596	!WannaDecryptor!.exe	109
PID 1596 wrote to memory of 4844	1596	!WannaDecryptor!.exe	109
PID 4844 wrote to memory of 4324	4844	cmd.exe	111
PID 4844 wrote to memory of 4324	4844	cmd.exe	111
PID 4844 wrote to memory of 4324	4844	cmd.exe	111

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:724
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c 257781715627129.bat
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4856
- - C:\Windows\SysWOW64\cscript.exe
    cscript //nologo c.vbs
    3⤵
    PID:228
- C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
  !WannaDecryptor!.exe f
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  PID:3892
- C:\Windows\SysWOW64\taskkill.exe
  taskkill /f /im MSExchange*
  2⤵
  - Kills process with taskkill
  - Suspicious use of AdjustPrivilegeToken
  PID:1120
- C:\Windows\SysWOW64\taskkill.exe
  taskkill /f /im Microsoft.Exchange.*
  2⤵
  - Kills process with taskkill
  - Suspicious use of AdjustPrivilegeToken
  PID:3984
- C:\Windows\SysWOW64\taskkill.exe
  taskkill /f /im sqlserver.exe
  2⤵
  - Kills process with taskkill
  - Suspicious use of AdjustPrivilegeToken
  PID:3416
- C:\Windows\SysWOW64\taskkill.exe
  taskkill /f /im sqlwriter.exe
  2⤵
  - Kills process with taskkill
  - Suspicious use of AdjustPrivilegeToken
  PID:3872
- C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
  !WannaDecryptor!.exe c
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  PID:976
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c start /b !WannaDecryptor!.exe v
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3388
- - C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
    !WannaDecryptor!.exe v
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:1596
  - - 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:4844
    - - C:\Windows\SysWOW64\Wbem\WMIC.exe
        
        wmic shadowcopy delete
        5⤵
        Suspicious use of AdjustPrivilegeToken
        
        PID:4324
- C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
  !WannaDecryptor!.exe
  2⤵
  - Executes dropped EXE
  - Sets desktop wallpaper using registry
  - Suspicious use of SetWindowsHookEx
  PID:2296

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:5060

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
002aa8b759254890cc0b5bbcf08d7a3e

SHA1
f32206a0f1a39c2fa0cad5cf936d56e0bcf826bd

SHA256
a862c6ceccf0ce21c194867cb303e9d6ed1684a8800fda3a5e2e762b5b621d76

SHA512
221fcb2a4034c32c3469c8827ad624d708de001c773b4042c84a497e57740c87e8469f79989002fe85bad2c91ddbc23d5d312b9cb558aff38b3cc64009e20192

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

Filesize
136B

MD5
72a1acfe184e80ab98244869516fb8e3

SHA1
7eb8733d978674263b7b3abc2e626c6d85df0a71

SHA256
467b38873c6ed8b9e109fed8ee41e80284def626acf4638dff50a99e501a8a95

SHA512
a5e46a4a2c3a31f78f0a2815f30859c32b5f8d4118a63d8d68cee0da120e438cac934436bef940b69d1a10b781fd4aa6516191b3a2038ad1709355e8ee0af4c1

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

Filesize
136B

MD5
ef220423cc334d746ba871f4756a71d8

SHA1
e8a11bb01872001d7049473d459200d6d9b93304

SHA256
d53ce2dd3e742a703915c869479e15796eb6b8eb9417dca3af60cf07f8f036d8

SHA512
ddfd515634cff96e083d2144f9cd202f804e95afa90c92949ff706f7bb7b812165379bb078e0abad8f1604d60c68c6c036aa92e673e04ca58b287903c05dc49b

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

Filesize
136B

MD5
d631d9eb19b4947af99d6f120687f679

SHA1
570cbe0a9c188b79735c02611286ef282e2d0c71

SHA256
b326a4f9fdc009a5fbd3314f90cdac096c452f48337173f0c16d85413744c2d9

SHA512
52795562f58508a8dea0ad220d8213256bffd099fc2e595a203a623c2d8ecfe4df776ab8bbb09b7fde3d29ed6fdfdf23dccaaaa47a14fad768a79a77361a352b

Download Submit
C:\Users\Admin\AppData\Local\Temp\257781715627129.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
d46ab27679d0248c52ce5ae0307e3599

SHA1
f1906fffe0262c0932f3d00b6cbca8aa3c2ea6ed

SHA256
89668d99cfcc29945fd4050cfa289703ad0abce06e7109b1834056b12eb7f726

SHA512
4d5b67d772e9c5939fc0d80e9a82d9b9484b5f183885902dec3763961f1913b324649407f422476757e1f8e9a8aa7a1c449216d71c8ca8ab80e88b473efed689

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/724-6-0x0000000010000000-0x0000000010012000-memory.dmp

Filesize
72KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads