44ee695b532eb984e46de29569ce35854b37d409efaabb6bcf9f5316e2b0546d

Resubmissions

18-04-2024 18:50

240418-xha8wabh29 10

01-01-2024 15:12

240101-slnwxsfeh4 10

Analysis

max time kernel
1s
max time network
124s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
01-01-2024 15:12

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General

Target

64862ec69991a7d454c3ea3a0c3a8f1cc9c80192078740b9c753abbf1b7bef1b.exe
Size

1.7MB
MD5

2b34badcdfb0921ee43548475c0ec5bb
SHA1

2cfe28584ae7649e3fe0ae150bfe49f7eabc6cf9
SHA256

64862ec69991a7d454c3ea3a0c3a8f1cc9c80192078740b9c753abbf1b7bef1b
SHA512

c31ac862ac9211821332aa8fd03110ca3ef89304fead4a900d2190c4a3950d2d6e5704b06ab3edf2ea6c6d3b9c225e5220e62496dc42948ec6125618924f880c
SSDEEP

24576:++H1KCVkwjVSjdao2bwzUaSze1AeHm/gcgX+7waf7gm7yZADfBFdOgSeiseIK1S3:399byqze1I3o+rH+MFdOsZvShn9T

Score

9^/10

evasion persistence ransomware

Malware Config

Signatures

Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
ransomware

File Deletion
T1070.004

Inhibit System Recovery
T1490
Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
ransomware evasion

Inhibit System Recovery
T1490

Processes:

bcdedit.exebcdedit.exe

pid process

2316 bcdedit.exe
952 bcdedit.exe
Deletes backup catalog 3 TTPs 1 IoCs
Uses wbadmin.exe to inhibit system recovery.
ransomware

Command and Scripting Interpreter
T1059

File Deletion
T1070.004

Inhibit System Recovery
T1490

Processes:

wbadmin.exe

pid process

1996 wbadmin.exe
Executes dropped EXE 1 IoCs

Processes:

Netflorist.exe

pid process

2912 Netflorist.exe

pid	process
2316	bcdedit.exe
952	bcdedit.exe

pid	process
1996	wbadmin.exe

pid	process
2912	Netflorist.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

Netflorist.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Run\UpdateTask = "C:\\Users\\Admin\\AppData\\Roaming\\Netflorist.exe"	Netflorist.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

Processes:

vssadmin.exe

pid process

2588 vssadmin.exe
Opens file in notepad (likely ransom note) 1 IoCs
ransomware

Processes:

NOTEPAD.EXE

pid process

2964 NOTEPAD.EXE
Suspicious behavior: AddClipboardFormatListener 2 IoCs

Processes:

64862ec69991a7d454c3ea3a0c3a8f1cc9c80192078740b9c753abbf1b7bef1b.exeNetflorist.exe

pid process

2264 64862ec69991a7d454c3ea3a0c3a8f1cc9c80192078740b9c753abbf1b7bef1b.exe
2912 Netflorist.exe

pid	process
2588	vssadmin.exe

pid	process
2964	NOTEPAD.EXE

Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

64862ec69991a7d454c3ea3a0c3a8f1cc9c80192078740b9c753abbf1b7bef1b.exeNetflorist.exe

pid	process
2264	64862ec69991a7d454c3ea3a0c3a8f1cc9c80192078740b9c753abbf1b7bef1b.exe
2264	64862ec69991a7d454c3ea3a0c3a8f1cc9c80192078740b9c753abbf1b7bef1b.exe
2264	64862ec69991a7d454c3ea3a0c3a8f1cc9c80192078740b9c753abbf1b7bef1b.exe
2912	Netflorist.exe
2912	Netflorist.exe
2912	Netflorist.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

64862ec69991a7d454c3ea3a0c3a8f1cc9c80192078740b9c753abbf1b7bef1b.exeNetflorist.exe

description	pid	process
Token: SeDebugPrivilege	2264	64862ec69991a7d454c3ea3a0c3a8f1cc9c80192078740b9c753abbf1b7bef1b.exe
Token: SeDebugPrivilege	2912	Netflorist.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

64862ec69991a7d454c3ea3a0c3a8f1cc9c80192078740b9c753abbf1b7bef1b.exe

description	pid	process	target process
PID 2264 wrote to memory of 2912	2264	64862ec69991a7d454c3ea3a0c3a8f1cc9c80192078740b9c753abbf1b7bef1b.exe	Netflorist.exe
PID 2264 wrote to memory of 2912	2264	64862ec69991a7d454c3ea3a0c3a8f1cc9c80192078740b9c753abbf1b7bef1b.exe	Netflorist.exe
PID 2264 wrote to memory of 2912	2264	64862ec69991a7d454c3ea3a0c3a8f1cc9c80192078740b9c753abbf1b7bef1b.exe	Netflorist.exe

C:\Users\Admin\AppData\Local\Temp\64862ec69991a7d454c3ea3a0c3a8f1cc9c80192078740b9c753abbf1b7bef1b.exe
"C:\Users\Admin\AppData\Local\Temp\64862ec69991a7d454c3ea3a0c3a8f1cc9c80192078740b9c753abbf1b7bef1b.exe"
1⤵
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2264
- C:\Users\Admin\AppData\Roaming\Netflorist.exe
  "C:\Users\Admin\AppData\Roaming\Netflorist.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious behavior: AddClipboardFormatListener
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2912
- - C:\Windows\System32\cmd.exe
    "C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete
    3⤵
    PID:2664
  - - C:\Windows\System32\Wbem\WMIC.exe
      wmic shadowcopy delete
      4⤵
      PID:2892
- - C:\Windows\System32\cmd.exe
    "C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet
    3⤵
    PID:1748
- - C:\Windows\System32\cmd.exe
    "C:\Windows\System32\cmd.exe" /C bcdedit /set {default} bootstatuspolicy ignoreallfailures & bcdedit /set {default} recoveryenabled no
    3⤵
    PID:2024
- - C:\Windows\system32\NOTEPAD.EXE
    "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\read_it.txt
    3⤵
    - Opens file in notepad (likely ransom note)
    PID:2964

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
PID:2548

C:\Windows\system32\vssadmin.exe
vssadmin delete shadows /all /quiet
1⤵
- Interacts with shadow copies
PID:2588

C:\Windows\system32\wbengine.exe
"C:\Windows\system32\wbengine.exe"
1⤵
PID:1648

C:\Windows\System32\vds.exe
C:\Windows\System32\vds.exe
1⤵
PID:2408

C:\Windows\System32\vdsldr.exe
C:\Windows\System32\vdsldr.exe -Embedding
1⤵
PID:1180

C:\Windows\system32\wbadmin.exe
wbadmin delete catalog -quiet
1⤵
- Deletes backup catalog
PID:1996

C:\Windows\system32\bcdedit.exe
bcdedit /set {default} recoveryenabled no
1⤵
- Modifies boot configuration data using bcdedit
PID:2316

C:\Windows\system32\bcdedit.exe
bcdedit /set {default} bootstatuspolicy ignoreallfailures
1⤵
- Modifies boot configuration data using bcdedit
PID:952

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

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

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Inhibit System Recovery

T1490

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Netflorist.exe

MD5
d41d8cd98f00b204e9800998ecf8427e

SHA1
da39a3ee5e6b4b0d3255bfef95601890afd80709

SHA256
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

SHA512
cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

Download Submit
memory/2264-2-0x0000000000F80000-0x0000000001000000-memory.dmp

Filesize
512KB

Download
memory/2264-3-0x0000000000350000-0x0000000000351000-memory.dmp

Filesize
4KB

Download
memory/2264-0-0x0000000001080000-0x0000000001242000-memory.dmp

Filesize
1.8MB

Download
memory/2264-10-0x000007FEF5EE0000-0x000007FEF68CC000-memory.dmp

Filesize
9.9MB

Download
memory/2264-1-0x000007FEF5EE0000-0x000007FEF68CC000-memory.dmp

Filesize
9.9MB

Download
memory/2912-11-0x000007FEF5EE0000-0x000007FEF68CC000-memory.dmp

Filesize
9.9MB

Download
memory/2912-9-0x0000000000120000-0x00000000002E2000-memory.dmp

Filesize
1.8MB

Download
memory/2912-12-0x000000001B4F0000-0x000000001B570000-memory.dmp

Filesize
512KB

Download
memory/2912-13-0x0000000000520000-0x0000000000521000-memory.dmp

Filesize
4KB

Download
memory/2912-49-0x000000001B4F0000-0x000000001B570000-memory.dmp

Filesize
512KB

Download
memory/2912-887-0x000007FEF5EE0000-0x000007FEF68CC000-memory.dmp

Filesize
9.9MB

Download
memory/2912-888-0x000000001B4F0000-0x000000001B570000-memory.dmp

Filesize
512KB

Download
memory/2912-889-0x000000001B4F0000-0x000000001B570000-memory.dmp

Filesize
512KB

Download