a79bb0d047313e02d91cfe0a8e1163739da62bdad9fc3a1cc47d3d036bc854bd

Analysis

max time kernel
151s
max time network
175s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
24/11/2022, 10:02

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General

Target

fatura_809506887.exe
Size

522KB
MD5

2ad4fc835272034a36a96d49f72bc0c4
SHA1

eef08716315b7fd1fa3b530d1ebcb8bd6fb06fd6
SHA256

c6057c4adb6e6265a768b533e075d8353750fa8090b1e00154e3169fe5bc460a
SHA512

a38a4c4be25f70055519ca93253d45e4dcd400a59d9799a0e41603feae0569512e52b237f3aa70ab97139190fcf90f7a5c86b23e40ca9daeb46a2d1c0f7c39e7
SSDEEP

6144:N6LMUWDqIa6V/Ab/f+4tD7nROEuaRh8YHR51yC9fa2te5gCpWiaXRYCUWw0sLl:cofDT/U/f+4dnGYxn8T9I2Nll

Score

9^/10

persistence ransomware

Malware Config

Signatures

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

File Deletion
T1107

Inhibit System Recovery
T1490

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run	explorer.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ysaziniw = "C:\\Windows\\onadybyr.exe"	explorer.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
5100	fatura_809506887.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 5100 set thread context of 4964	5100	fatura_809506887.exe	83
PID 4964 set thread context of 4508	4964	fatura_809506887.exe	84

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\onadybyr.exe	explorer.exe
File created	C:\Windows\onadybyr.exe	explorer.exe

Interacts with shadow copies 2 TTPs 1 IoCs

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

ransomware

File Deletion

T1107

Inhibit System Recovery

T1490

pid	Process
3644	vssadmin.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeBackupPrivilege	2456	vssvc.exe
Token: SeRestorePrivilege	2456	vssvc.exe
Token: SeAuditPrivilege	2456	vssvc.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 5100 wrote to memory of 4964	5100	fatura_809506887.exe	83
PID 5100 wrote to memory of 4964	5100	fatura_809506887.exe	83
PID 5100 wrote to memory of 4964	5100	fatura_809506887.exe	83
PID 5100 wrote to memory of 4964	5100	fatura_809506887.exe	83
PID 5100 wrote to memory of 4964	5100	fatura_809506887.exe	83
PID 5100 wrote to memory of 4964	5100	fatura_809506887.exe	83
PID 5100 wrote to memory of 4964	5100	fatura_809506887.exe	83
PID 5100 wrote to memory of 4964	5100	fatura_809506887.exe	83
PID 5100 wrote to memory of 4964	5100	fatura_809506887.exe	83
PID 5100 wrote to memory of 4964	5100	fatura_809506887.exe	83
PID 4964 wrote to memory of 4508	4964	fatura_809506887.exe	84
PID 4964 wrote to memory of 4508	4964	fatura_809506887.exe	84
PID 4964 wrote to memory of 4508	4964	fatura_809506887.exe	84
PID 4964 wrote to memory of 4508	4964	fatura_809506887.exe	84
PID 4508 wrote to memory of 3644	4508	explorer.exe	85
PID 4508 wrote to memory of 3644	4508	explorer.exe	85

C:\Users\Admin\AppData\Local\Temp\fatura_809506887.exe
"C:\Users\Admin\AppData\Local\Temp\fatura_809506887.exe"
1⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:5100
- C:\Users\Admin\AppData\Local\Temp\fatura_809506887.exe
  "C:\Users\Admin\AppData\Local\Temp\fatura_809506887.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:4964
- - C:\Windows\SysWOW64\explorer.exe
    "C:\Windows\system32\explorer.exe"
    3⤵
    - Adds Run key to start application
    - Drops file in Windows directory
    - Suspicious use of WriteProcessMemory
    PID:4508
  - - C:\Windows\SYSTEM32\vssadmin.exe
      vssadmin.exe Delete Shadows /All /Quiet
      4⤵
      Interacts with shadow copies
      PID:3644

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2456

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

File Deletion

T1107

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact