wannacry | a843d7d2ee7568c099ad7b0170528cc60d925c3803968dcb24c5c4c9294ae7d5

Resubmissions

04-12-2024 17:57

241204-wjtk6stnbv 10

04-12-2024 17:56

241204-wh7fmstmhv 10

Analysis

max time kernel
283s
max time network
274s
platform
windows10-2004_x64
resource
win10v2004-20241007-es
resource tags

arch:x64arch:x86image:win10v2004-20241007-eslocale:es-esos:windows10-2004-x64systemwindows
submitted
04-12-2024 17:56

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General

Target

ce2194c96ebab334f8484a7a3e45e2c3bb74296fc5eddd335abf3f5c65f34967.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
Wannacry family
wannacry

Executes dropped EXE 3 IoCs

pid	Process
3432	tasksche.exe
3472	tasksche.exe
1412	tasksche.exe

Modifies file permissions 1 TTPs 3 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
2552	icacls.exe
1508	icacls.exe
4384	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 Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	ce2194c96ebab334f8484a7a3e45e2c3bb74296fc5eddd335abf3f5c65f34967.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	ce2194c96ebab334f8484a7a3e45e2c3bb74296fc5eddd335abf3f5c65f34967.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.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	ce2194c96ebab334f8484a7a3e45e2c3bb74296fc5eddd335abf3f5c65f34967.exe
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	icacls.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	icacls.exe

Checks SCSI registry key(s) 3 TTPs 3 IoCs

SCSI information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000	taskmgr.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\Properties\{b725f130-47ef-101a-a5f1-02608c9eebac}\000A	taskmgr.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\FriendlyName	taskmgr.exe

Modifies data under HKEY_USERS 5 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	ce2194c96ebab334f8484a7a3e45e2c3bb74296fc5eddd335abf3f5c65f34967.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	ce2194c96ebab334f8484a7a3e45e2c3bb74296fc5eddd335abf3f5c65f34967.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	ce2194c96ebab334f8484a7a3e45e2c3bb74296fc5eddd335abf3f5c65f34967.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	ce2194c96ebab334f8484a7a3e45e2c3bb74296fc5eddd335abf3f5c65f34967.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	ce2194c96ebab334f8484a7a3e45e2c3bb74296fc5eddd335abf3f5c65f34967.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
1912	taskmgr.exe
1912	taskmgr.exe
1912	taskmgr.exe
1912	taskmgr.exe
1912	taskmgr.exe
1912	taskmgr.exe
1912	taskmgr.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	1912	taskmgr.exe
Token: SeSystemProfilePrivilege	1912	taskmgr.exe
Token: SeCreateGlobalPrivilege	1912	taskmgr.exe
Token: 33	1912	taskmgr.exe
Token: SeIncBasePriorityPrivilege	1912	taskmgr.exe

Suspicious use of FindShellTrayWindow 33 IoCs

pid	Process
1912	taskmgr.exe
1912	taskmgr.exe
1912	taskmgr.exe
1912	taskmgr.exe
1912	taskmgr.exe
1912	taskmgr.exe
1912	taskmgr.exe
1912	taskmgr.exe
1912	taskmgr.exe
1912	taskmgr.exe
1912	taskmgr.exe
1912	taskmgr.exe
1912	taskmgr.exe
1912	taskmgr.exe
1912	taskmgr.exe
1912	taskmgr.exe
1912	taskmgr.exe
1912	taskmgr.exe
1912	taskmgr.exe
1912	taskmgr.exe
1912	taskmgr.exe
1912	taskmgr.exe
1912	taskmgr.exe
1912	taskmgr.exe
1912	taskmgr.exe
1912	taskmgr.exe
1912	taskmgr.exe
1912	taskmgr.exe
1912	taskmgr.exe
1912	taskmgr.exe
1912	taskmgr.exe
1912	taskmgr.exe
1912	taskmgr.exe

Suspicious use of SendNotifyMessage 33 IoCs

pid	Process
1912	taskmgr.exe
1912	taskmgr.exe
1912	taskmgr.exe
1912	taskmgr.exe
1912	taskmgr.exe
1912	taskmgr.exe
1912	taskmgr.exe
1912	taskmgr.exe
1912	taskmgr.exe
1912	taskmgr.exe
1912	taskmgr.exe
1912	taskmgr.exe
1912	taskmgr.exe
1912	taskmgr.exe
1912	taskmgr.exe
1912	taskmgr.exe
1912	taskmgr.exe
1912	taskmgr.exe
1912	taskmgr.exe
1912	taskmgr.exe
1912	taskmgr.exe
1912	taskmgr.exe
1912	taskmgr.exe
1912	taskmgr.exe
1912	taskmgr.exe
1912	taskmgr.exe
1912	taskmgr.exe
1912	taskmgr.exe
1912	taskmgr.exe
1912	taskmgr.exe
1912	taskmgr.exe
1912	taskmgr.exe
1912	taskmgr.exe

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 4768 wrote to memory of 3432	4768	ce2194c96ebab334f8484a7a3e45e2c3bb74296fc5eddd335abf3f5c65f34967.exe	83
PID 4768 wrote to memory of 3432	4768	ce2194c96ebab334f8484a7a3e45e2c3bb74296fc5eddd335abf3f5c65f34967.exe	83
PID 4768 wrote to memory of 3432	4768	ce2194c96ebab334f8484a7a3e45e2c3bb74296fc5eddd335abf3f5c65f34967.exe	83
PID 3272 wrote to memory of 3472	3272	cmd.exe	85
PID 3272 wrote to memory of 3472	3272	cmd.exe	85
PID 3272 wrote to memory of 3472	3272	cmd.exe	85
PID 3472 wrote to memory of 1876	3472	tasksche.exe	86
PID 3472 wrote to memory of 1876	3472	tasksche.exe	86
PID 3472 wrote to memory of 1876	3472	tasksche.exe	86
PID 3472 wrote to memory of 2552	3472	tasksche.exe	87
PID 3472 wrote to memory of 2552	3472	tasksche.exe	87
PID 3472 wrote to memory of 2552	3472	tasksche.exe	87
PID 3432 wrote to memory of 1412	3432	tasksche.exe	101
PID 3432 wrote to memory of 1412	3432	tasksche.exe	101
PID 3432 wrote to memory of 1412	3432	tasksche.exe	101
PID 1412 wrote to memory of 1268	1412	tasksche.exe	102
PID 1412 wrote to memory of 1268	1412	tasksche.exe	102
PID 1412 wrote to memory of 1268	1412	tasksche.exe	102
PID 1412 wrote to memory of 1508	1412	tasksche.exe	103
PID 1412 wrote to memory of 1508	1412	tasksche.exe	103
PID 1412 wrote to memory of 1508	1412	tasksche.exe	103
PID 3432 wrote to memory of 3524	3432	tasksche.exe	106
PID 3432 wrote to memory of 3524	3432	tasksche.exe	106
PID 3432 wrote to memory of 3524	3432	tasksche.exe	106
PID 3432 wrote to memory of 4384	3432	tasksche.exe	107
PID 3432 wrote to memory of 4384	3432	tasksche.exe	107
PID 3432 wrote to memory of 4384	3432	tasksche.exe	107

Views/modifies file attributes 1 TTPs 3 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
1876	attrib.exe
1268	attrib.exe
3524	attrib.exe

C:\Users\Admin\AppData\Local\Temp\ce2194c96ebab334f8484a7a3e45e2c3bb74296fc5eddd335abf3f5c65f34967.exe
"C:\Users\Admin\AppData\Local\Temp\ce2194c96ebab334f8484a7a3e45e2c3bb74296fc5eddd335abf3f5c65f34967.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4768
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3432
- - C:\ProgramData\tvhpejndbjx409\tasksche.exe
    C:\ProgramData\tvhpejndbjx409\tasksche.exe
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1412
  - - C:\Windows\SysWOW64\attrib.exe
      attrib +h .
      4⤵
      System Location Discovery: System Language Discovery
      Views/modifies file attributes
      PID:1268
  - - C:\Windows\SysWOW64\icacls.exe
      icacls . /grant Everyone:F /T /C /Q
      4⤵
      Modifies file permissions
      System Location Discovery: System Language Discovery
      PID:1508
- - C:\Windows\SysWOW64\attrib.exe
    attrib +h .
    3⤵
    - System Location Discovery: System Language Discovery
    - Views/modifies file attributes
    PID:3524
- - C:\Windows\SysWOW64\icacls.exe
    icacls . /grant Everyone:F /T /C /Q
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:4384

C:\Users\Admin\AppData\Local\Temp\ce2194c96ebab334f8484a7a3e45e2c3bb74296fc5eddd335abf3f5c65f34967.exe
C:\Users\Admin\AppData\Local\Temp\ce2194c96ebab334f8484a7a3e45e2c3bb74296fc5eddd335abf3f5c65f34967.exe -m security
1⤵
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2372

C:\Windows\system32\cmd.exe
cmd.exe /c "C:\ProgramData\tvhpejndbjx409\tasksche.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3272
- C:\ProgramData\tvhpejndbjx409\tasksche.exe
  C:\ProgramData\tvhpejndbjx409\tasksche.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3472
- - C:\Windows\SysWOW64\attrib.exe
    attrib +h .
    3⤵
    - System Location Discovery: System Language Discovery
    - Views/modifies file attributes
    PID:1876
- - C:\Windows\SysWOW64\icacls.exe
    icacls . /grant Everyone:F /T /C /Q
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:2552

C:\Windows\system32\taskmgr.exe
"C:\Windows\system32\taskmgr.exe" /4
1⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:1912

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

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\tasksche.exe

Filesize
3.4MB

MD5
a27cfbfad728fa5ec8e701a6f93cab26

SHA1
deba582c9c8f059590132395f987c2acf54e7a7f

SHA256
c0057fd3141966017014beb71fa2e31d84d3ddd2a9f20e3e6ee26df8165a531f

SHA512
8c095ccb3367903bc5498d0222ee537ef2bbd4f4204fe9a9a9babe2426d8a377240a15892e248e6e252bf3b229eecc8b1c960136988bf3398941e20a1e542b5d

Download Submit
memory/1912-23-0x000001D15CAE0000-0x000001D15CAE1000-memory.dmp

Filesize
4KB

Download
memory/1912-24-0x000001D15CAE0000-0x000001D15CAE1000-memory.dmp

Filesize
4KB

Download
memory/1912-18-0x000001D15CAE0000-0x000001D15CAE1000-memory.dmp

Filesize
4KB

Download
memory/1912-19-0x000001D15CAE0000-0x000001D15CAE1000-memory.dmp

Filesize
4KB

Download
memory/1912-12-0x000001D15CAE0000-0x000001D15CAE1000-memory.dmp

Filesize
4KB

Download
memory/1912-14-0x000001D15CAE0000-0x000001D15CAE1000-memory.dmp

Filesize
4KB

Download
memory/1912-13-0x000001D15CAE0000-0x000001D15CAE1000-memory.dmp

Filesize
4KB

Download
memory/1912-20-0x000001D15CAE0000-0x000001D15CAE1000-memory.dmp

Filesize
4KB

Download
memory/1912-21-0x000001D15CAE0000-0x000001D15CAE1000-memory.dmp

Filesize
4KB

Download
memory/1912-22-0x000001D15CAE0000-0x000001D15CAE1000-memory.dmp

Filesize
4KB

Download
memory/2372-1-0x0000000000400000-0x0000000000A73000-memory.dmp

Filesize
6.4MB

Download
memory/2372-11-0x0000000000400000-0x0000000000A73000-memory.dmp

Filesize
6.4MB

Download
memory/4768-0-0x0000000000400000-0x0000000000A73000-memory.dmp

Filesize
6.4MB

Download
memory/4768-7-0x0000000000400000-0x0000000000A73000-memory.dmp

Filesize
6.4MB

Download