105f7f2b7db55afe2942f58bf0e1004460c75def6e7996c36dbc710f679d8c9e

Resubmissions

04/11/2026, 18:14

261104-wvbjqsttf17

04/11/2026, 18:11

261104-wsz5bab12x7

Analysis

user interaction
yes
max time kernel
35s
max time network
34s
platform
windows10-ltsc_2021_x64
resource
win10ltsc2021-20260911-en
resource tags

arch:x64arch:x86image:win10ltsc2021-20260911-enlocale:en-usos:windows10-ltsc_2021-x64systemwindows
submitted
04/11/2026, 18:11

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General

Target
build.rar
Size 716KB
Sample261104-wsz5bab12x
SHA256 105f7f2b7db55afe2942f58bf0e1004460c75def6e7996c36dbc710f679d8c9e
MD5 e5aa4be47ca4d8f978baa79724aba1ab
SHA1 da1c0cd561604758602d61cc4aba3f6dfab070bb
SHA512 bc8c9736701a27ffbac2d069ecb94060621fd7120af4c52a5006525d5a6665bfc8b0490d32d46912cb0162900985f401786f4f4224dc1efc110e0bbca26b5903
SSDEEP 12288:WAUprkKdog8P7QnvrbX4mwAZIpUNhwVTmG6jmXE4xTGLUE4vZuyZ3CUd:WtJZdSQv/4mdupIwVr0mXDxTG6Z/dC2
TLSH
T149F42385EF3E331B837C523F40F1AF82236925017682AA2D55567C4DCF3A9421AB766F
MD5 SHA1 SHA512 SSDEEP TLSH

Score

7^/10

persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3572	OctopusEAX.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3572	OctopusEAX.exe
3572	OctopusEAX.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4864	7zFM.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeRestorePrivilege	4864	7zFM.exe
Token: 35	4864	7zFM.exe
Token: SeSecurityPrivilege	4864	7zFM.exe
Token: 33	3676	AUDIODG.EXE
Token: SeIncBasePriorityPrivilege	3676	AUDIODG.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
4864	7zFM.exe
4864	7zFM.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 3572 wrote to memory of 4208	3572	OctopusEAX.exe	95
PID 3572 wrote to memory of 5476	3572	OctopusEAX.exe	97

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Program Files\7-Zip\7zFM.exe
"C:\Program Files\7-Zip\7zFM.exe" "C:\Users\Admin\AppData\Local\Temp\build.rar"
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
PID:4864

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
1⤵
PID:3716

C:\Users\Admin\Desktop\MasonEAX\OctopusEAX.exe
"C:\Users\Admin\Desktop\MasonEAX\OctopusEAX.exe"
1⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3572
- C:\Windows\system32\schtasks.exe
  "C:\Windows\system32\schtasks.exe" /Query /TN "OctopusEAX"
  2⤵
  PID:4208
- C:\Windows\system32\schtasks.exe
  "C:\Windows\system32\schtasks.exe" /Query /TN "MasonEAX"
  2⤵
  PID:5476

C:\Windows\system32\AUDIODG.EXE
C:\Windows\system32\AUDIODG.EXE 0x500 0x4f8
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3676

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

OctopusEAX.exe

Path C:\Users\Admin\Desktop\MasonEAX\OctopusEAX.exe
Size 1.4MB
SHA256 6c1758ea8aff65a6f69bfab05752a343077bdffae6873ac1d83dbaa00dc1fc19
MD5 97d1dacc80e013b370e0338c3ecc8782
SHA1 8a5883f4cae22ba72496e6c7086a242c0792e605
SHA512 70c89febda1d2a03f07774b9fb5c98a896e814210d1f3ab35c43de2cf82d87865ddcd014daff294473a6bf7a9dc6b091bfb3fbae92fcb2549267aef18ae927c4
SSDEEP 24576:mWAZU7t1rtbc/7Ydld1asivY1EyVJIRTxNuEagobz32ORV:mT6ptMs1511+5aRz32O
TLSH
T116659E11A1E441EDD1BBE2B4CA762D07E772784103349AEB03D0996A1F277D54EBFB22
MD5 SHA1 SHA512 SSDEEP TLSH

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