wannacry | 283f40e9d550833bec101a24fd6fd6fbd9937ed32a51392e818ffff662a1d30a

Resubmissions

08/01/2024, 11:43

240108-nv4arahadp 10

07/01/2024, 19:42

240107-ye6faadgc5 10

Analysis

max time kernel
1s
max time network
144s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
07/01/2024, 19:42

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General

Target

[email protected]
Size

3.4MB
MD5

84c82835a5d21bbcf75a61706d8ab549
SHA1

5ff465afaabcbf0150d1a3ab2c2e74f3a4426467
SHA256

ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa
SHA512

90723a50c20ba3643d625595fd6be8dcf88d70ff7f4b4719a88f055d5b3149a4231018ea30d375171507a147e59f73478c0c27948590794554d031e7d54b7244
SSDEEP

98304:QqPoBhz1aRxcSUDk36SAEdhvxWa9P593R8yAVp2g3x:QqPe1Cxcxk3ZAEUadzR8yc4gB

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
ransomware

File Deletion
T1070.004

Inhibit System Recovery
T1490

Executes dropped EXE 1 IoCs

pid	Process
2348	taskdl.exe

Loads dropped DLL 2 IoCs

pid	Process
2504	[email protected]
2504	[email protected]

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
2800	icacls.exe

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

System Information Discovery
T1082

Interacts with shadow copies 2 TTPs 1 IoCs

Shadow copies are often targeted by ransomware to inhibit system recovery.

ransomware

File Deletion

T1070.004

Inhibit System Recovery

T1490

pid	Process
1332	vssadmin.exe

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

T1112

pid	Process
2712	reg.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 2504 wrote to memory of 2908	2504	[email protected]	15
PID 2504 wrote to memory of 2908	2504	[email protected]	15
PID 2504 wrote to memory of 2908	2504	[email protected]	15
PID 2504 wrote to memory of 2908	2504	[email protected]	15
PID 2504 wrote to memory of 2800	2504	[email protected]	25
PID 2504 wrote to memory of 2800	2504	[email protected]	25
PID 2504 wrote to memory of 2800	2504	[email protected]	25
PID 2504 wrote to memory of 2800	2504	[email protected]	25
PID 2504 wrote to memory of 2348	2504	[email protected]	16
PID 2504 wrote to memory of 2348	2504	[email protected]	16
PID 2504 wrote to memory of 2348	2504	[email protected]	16
PID 2504 wrote to memory of 2348	2504	[email protected]	16
PID 2504 wrote to memory of 2136	2504	[email protected]	19
PID 2504 wrote to memory of 2136	2504	[email protected]	19
PID 2504 wrote to memory of 2136	2504	[email protected]	19
PID 2504 wrote to memory of 2136	2504	[email protected]	19
PID 2136 wrote to memory of 2872	2136	cmd.exe	18
PID 2136 wrote to memory of 2872	2136	cmd.exe	18
PID 2136 wrote to memory of 2872	2136	cmd.exe	18
PID 2136 wrote to memory of 2872	2136	cmd.exe	18

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
2908	attrib.exe
1612	attrib.exe

C:\Users\Admin\AppData\Local\Temp\[email protected]
"C:\Users\Admin\AppData\Local\Temp\[email protected]"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2504
- C:\Windows\SysWOW64\attrib.exe
  attrib +h .
  2⤵
  - Views/modifies file attributes
  PID:2908
- C:\Users\Admin\AppData\Local\Temp\taskdl.exe
  taskdl.exe
  2⤵
  - Executes dropped EXE
  PID:2348
- C:\Windows\SysWOW64\cmd.exe
  cmd /c 251131704656600.bat
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2136
- C:\Windows\SysWOW64\attrib.exe
  attrib +h +s F:\$RECYCLE
  2⤵
  - Views/modifies file attributes
  PID:1612
- C:\Windows\SysWOW64\icacls.exe
  icacls . /grant Everyone:F /T /C /Q
  2⤵
  - Modifies file permissions
  PID:2800
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c start /b @[email protected] vs
  2⤵
  PID:896
- C:\Users\Admin\AppData\Local\Temp\@[email protected]
  @[email protected] co
  2⤵
  PID:1476
- - C:\Users\Admin\AppData\Local\Temp\TaskData\Tor\taskhsvc.exe
    TaskData\Tor\taskhsvc.exe
    3⤵
    PID:836
- C:\Users\Admin\AppData\Local\Temp\taskdl.exe
  taskdl.exe
  2⤵
  PID:2796
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c reg add HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run /v "nnzzsvcjqe067" /t REG_SZ /d "\"C:\Users\Admin\AppData\Local\Temp\tasksche.exe\"" /f
  2⤵
  PID:3004
- C:\Users\Admin\AppData\Local\Temp\@[email protected]
  @[email protected]
  2⤵
  PID:2904
- C:\Users\Admin\AppData\Local\Temp\taskse.exe
  taskse.exe C:\Users\Admin\AppData\Local\Temp\@[email protected]
  2⤵
  PID:2808
- C:\Users\Admin\AppData\Local\Temp\taskdl.exe
  taskdl.exe
  2⤵
  PID:2148
- C:\Users\Admin\AppData\Local\Temp\@[email protected]
  @[email protected]
  2⤵
  PID:1796
- C:\Users\Admin\AppData\Local\Temp\taskse.exe
  taskse.exe C:\Users\Admin\AppData\Local\Temp\@[email protected]
  2⤵
  PID:2132
- C:\Users\Admin\AppData\Local\Temp\@[email protected]
  @[email protected]
  2⤵
  PID:1508
- C:\Users\Admin\AppData\Local\Temp\taskdl.exe
  taskdl.exe
  2⤵
  PID:1012
- C:\Users\Admin\AppData\Local\Temp\taskse.exe
  taskse.exe C:\Users\Admin\AppData\Local\Temp\@[email protected]
  2⤵
  PID:1640
- C:\Users\Admin\AppData\Local\Temp\taskdl.exe
  taskdl.exe
  2⤵
  PID:868
- C:\Users\Admin\AppData\Local\Temp\@[email protected]
  @[email protected]
  2⤵
  PID:1988
- C:\Users\Admin\AppData\Local\Temp\taskse.exe
  taskse.exe C:\Users\Admin\AppData\Local\Temp\@[email protected]
  2⤵
  PID:1504

C:\Windows\SysWOW64\cscript.exe
cscript.exe //nologo m.vbs
1⤵
PID:2872

C:\Users\Admin\AppData\Local\Temp\@[email protected]
@[email protected] vs
1⤵
PID:2084
- 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
  2⤵
  PID:904

C:\Windows\SysWOW64\vssadmin.exe
vssadmin delete shadows /all /quiet
1⤵
- Interacts with shadow copies
PID:1332

C:\Windows\SysWOW64\Wbem\WMIC.exe
wmic shadowcopy delete
1⤵
PID:1988

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
PID:3064

C:\Windows\SysWOW64\reg.exe
reg add HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run /v "nnzzsvcjqe067" /t REG_SZ /d "\"C:\Users\Admin\AppData\Local\Temp\tasksche.exe\"" /f
1⤵
- Modifies registry key
PID:2712

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

File and Directory Permissions Modification

T1222

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Indicator Removal

T1070

File Deletion

T1070.004

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact