icexloader | 0911819d0e050ddc5884ea40b4b39a716a7ef8de0179d0dfded9f043546cede9

Analysis

max time kernel
151s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
09-11-2022 20:53

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General

Target

Opus.exe
Size

348KB
MD5

96bdd68cfa84ba3d7390b4e172837370
SHA1

f3f5908c8138881e04db463a78172ca510073788
SHA256

0911819d0e050ddc5884ea40b4b39a716a7ef8de0179d0dfded9f043546cede9
SHA512

17775d7dbf6776620f59a0a2f4ea2753a4ddf39a9b05e7f2d28dae2e48a809c8aa30382d5fdddff70c76d948f6a1991a1585271e3b820576feb18825b178f4b0
SSDEEP

6144:cbslI7IBoZ1jMYORbxV9b+WvHfyVQhAyPl//2:cbvII1MtD+WffyVQhAyPl//2

Score

10^/10

icexloader loader persistence

Malware Config

Extracted

Family

icexloader

http://stealthelite.one/magnumopus/Script.php

Signatures

Detects IceXLoader v3.0 2 IoCs

resource	yara_rule
behavioral2/files/0x0003000000000727-137.dat	family_icexloader_v3
behavioral2/files/0x0003000000000727-138.dat	family_icexloader_v3

icexloader
IceXLoader is a downloader used to deliver other malware families.
loader icexloader

Executes dropped EXE 1 IoCs

pid	Process
656	Opus.exe

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Opus.exe	Opus.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Opus = "\"C:\\Users\\Admin\\AppData\\Roaming\\Opus.exe\""	Opus.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows\CurrentVersion\Run	Opus.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Opus = "\"C:\\Users\\Admin\\AppData\\Roaming\\Opus.exe\""	Opus.exe
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	Opus.exe

Delays execution with timeout.exe 2 IoCs

evasion

pid	Process
1808	timeout.exe
1240	timeout.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
3368	powershell.exe
3368	powershell.exe
3780	powershell.exe
3780	powershell.exe
4196	powershell.exe
4196	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	3368	powershell.exe
Token: SeRemoteShutdownPrivilege	656	Opus.exe
Token: SeRemoteShutdownPrivilege	656	Opus.exe
Token: SeRemoteShutdownPrivilege	656	Opus.exe
Token: SeRemoteShutdownPrivilege	656	Opus.exe
Token: SeRemoteShutdownPrivilege	656	Opus.exe
Token: SeRemoteShutdownPrivilege	656	Opus.exe
Token: SeRemoteShutdownPrivilege	656	Opus.exe
Token: SeRemoteShutdownPrivilege	656	Opus.exe
Token: SeRemoteShutdownPrivilege	656	Opus.exe
Token: SeRemoteShutdownPrivilege	656	Opus.exe
Token: SeDebugPrivilege	3780	powershell.exe
Token: SeRemoteShutdownPrivilege	656	Opus.exe
Token: SeRemoteShutdownPrivilege	656	Opus.exe
Token: SeRemoteShutdownPrivilege	656	Opus.exe
Token: SeRemoteShutdownPrivilege	656	Opus.exe
Token: SeRemoteShutdownPrivilege	656	Opus.exe
Token: SeDebugPrivilege	4196	powershell.exe
Token: SeRemoteShutdownPrivilege	656	Opus.exe
Token: SeRemoteShutdownPrivilege	656	Opus.exe
Token: SeRemoteShutdownPrivilege	656	Opus.exe
Token: SeRemoteShutdownPrivilege	656	Opus.exe
Token: SeRemoteShutdownPrivilege	656	Opus.exe
Token: SeRemoteShutdownPrivilege	656	Opus.exe
Token: SeRemoteShutdownPrivilege	656	Opus.exe
Token: SeRemoteShutdownPrivilege	656	Opus.exe
Token: SeRemoteShutdownPrivilege	656	Opus.exe
Token: SeRemoteShutdownPrivilege	656	Opus.exe
Token: SeRemoteShutdownPrivilege	656	Opus.exe
Token: SeRemoteShutdownPrivilege	656	Opus.exe
Token: SeRemoteShutdownPrivilege	656	Opus.exe
Token: SeRemoteShutdownPrivilege	656	Opus.exe
Token: SeRemoteShutdownPrivilege	656	Opus.exe
Token: SeRemoteShutdownPrivilege	656	Opus.exe
Token: SeRemoteShutdownPrivilege	656	Opus.exe
Token: SeRemoteShutdownPrivilege	656	Opus.exe
Token: SeRemoteShutdownPrivilege	656	Opus.exe
Token: SeRemoteShutdownPrivilege	656	Opus.exe
Token: SeRemoteShutdownPrivilege	656	Opus.exe
Token: SeRemoteShutdownPrivilege	656	Opus.exe
Token: SeRemoteShutdownPrivilege	656	Opus.exe
Token: SeRemoteShutdownPrivilege	656	Opus.exe
Token: SeRemoteShutdownPrivilege	656	Opus.exe
Token: SeRemoteShutdownPrivilege	656	Opus.exe
Token: SeRemoteShutdownPrivilege	656	Opus.exe
Token: SeRemoteShutdownPrivilege	656	Opus.exe
Token: SeRemoteShutdownPrivilege	656	Opus.exe
Token: SeRemoteShutdownPrivilege	656	Opus.exe
Token: SeRemoteShutdownPrivilege	656	Opus.exe
Token: SeRemoteShutdownPrivilege	656	Opus.exe
Token: SeRemoteShutdownPrivilege	656	Opus.exe
Token: SeRemoteShutdownPrivilege	656	Opus.exe
Token: SeRemoteShutdownPrivilege	656	Opus.exe
Token: SeRemoteShutdownPrivilege	656	Opus.exe
Token: SeRemoteShutdownPrivilege	656	Opus.exe
Token: SeRemoteShutdownPrivilege	656	Opus.exe
Token: SeRemoteShutdownPrivilege	656	Opus.exe
Token: SeRemoteShutdownPrivilege	656	Opus.exe
Token: SeRemoteShutdownPrivilege	656	Opus.exe
Token: SeRemoteShutdownPrivilege	656	Opus.exe
Token: SeRemoteShutdownPrivilege	656	Opus.exe
Token: SeRemoteShutdownPrivilege	656	Opus.exe
Token: SeRemoteShutdownPrivilege	656	Opus.exe
Token: SeRemoteShutdownPrivilege	656	Opus.exe

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 2748 wrote to memory of 2024	2748	Opus.exe	82
PID 2748 wrote to memory of 2024	2748	Opus.exe	82
PID 2748 wrote to memory of 2024	2748	Opus.exe	82
PID 2748 wrote to memory of 2400	2748	Opus.exe	83
PID 2748 wrote to memory of 2400	2748	Opus.exe	83
PID 2748 wrote to memory of 2400	2748	Opus.exe	83
PID 2024 wrote to memory of 1808	2024	cmd.exe	86
PID 2024 wrote to memory of 1808	2024	cmd.exe	86
PID 2024 wrote to memory of 1808	2024	cmd.exe	86
PID 2400 wrote to memory of 1240	2400	cmd.exe	87
PID 2400 wrote to memory of 1240	2400	cmd.exe	87
PID 2400 wrote to memory of 1240	2400	cmd.exe	87
PID 2024 wrote to memory of 656	2024	cmd.exe	88
PID 2024 wrote to memory of 656	2024	cmd.exe	88
PID 2024 wrote to memory of 656	2024	cmd.exe	88
PID 656 wrote to memory of 1100	656	Opus.exe	89
PID 656 wrote to memory of 1100	656	Opus.exe	89
PID 656 wrote to memory of 1100	656	Opus.exe	89
PID 1100 wrote to memory of 3368	1100	cmd.exe	91
PID 1100 wrote to memory of 3368	1100	cmd.exe	91
PID 1100 wrote to memory of 3368	1100	cmd.exe	91
PID 1100 wrote to memory of 3780	1100	cmd.exe	92
PID 1100 wrote to memory of 3780	1100	cmd.exe	92
PID 1100 wrote to memory of 3780	1100	cmd.exe	92
PID 1100 wrote to memory of 4196	1100	cmd.exe	94
PID 1100 wrote to memory of 4196	1100	cmd.exe	94
PID 1100 wrote to memory of 4196	1100	cmd.exe	94

C:\Users\Admin\AppData\Local\Temp\Opus.exe
"C:\Users\Admin\AppData\Local\Temp\Opus.exe"
1⤵
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2748
- C:\Windows\SysWOW64\cmd.exe
  cmd /c timeout 2 & "C:\Users\Admin\AppData\Roaming\Opus.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2024
- - C:\Windows\SysWOW64\timeout.exe
    timeout 2
    3⤵
    - Delays execution with timeout.exe
    PID:1808
- - C:\Users\Admin\AppData\Roaming\Opus.exe
    "C:\Users\Admin\AppData\Roaming\Opus.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:656
  - - C:\Windows\SysWOW64\cmd.exe
      cmd /c "C:\Users\Admin\AppData\Local\Temp\file.bat"
      4⤵
      Suspicious use of WriteProcessMemory
      PID:1100
    - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        
        powershell -Command Set-MpPreference -DisableRealtimeMonitoring $true
        5⤵
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        
        PID:3368
    - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        
        powershell -Command Add-MpPreference -ExclusionExtension "C:\Users\Admin\AppData\Roaming\Opus\.exe"
        5⤵
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        
        PID:3780
    - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        
        powershell -Command Add-MpPreference -ExclusionPath "C:\Users\Admin"
        5⤵
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        
        PID:4196
- C:\Windows\SysWOW64\cmd.exe
  cmd /c timeout 1 & del /F "C:\Users\Admin\AppData\Local\Temp\Opus.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2400
- - C:\Windows\SysWOW64\timeout.exe
    timeout 1
    3⤵
    - Delays execution with timeout.exe
    PID:1240

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
968cb9309758126772781b83adb8a28f

SHA1
8da30e71accf186b2ba11da1797cf67f8f78b47c

SHA256
92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

SHA512
4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
18KB

MD5
dd7322a870ddb09f7282539dbaa45cda

SHA1
71933a3c26b44e2c26f46d20b48c910eb516a375

SHA256
53f84693c98b05390c9e156434c08e2154d10da00388276a7e6207f45685cb99

SHA512
a5b425b09801e3ffbfe4573221507c4331a5662bfcd8530acf6d2ab47f99fb22be32f8d03e5ead6af249bbed9faf054d77e10531f38987e4659caf1c641a0969

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
18KB

MD5
4031dbaab2efd61073afaf41c2b25580

SHA1
5f9cc5ae5c6cb53fcc48bf17381e2ae45e175073

SHA256
48d6cc8c5cef41e20c4a40416121b46dabc7253ed6d739efac8f096d5f3d7c3d

SHA512
1bbb057f3ad064e987e06487848ae737ca78aede31dcd022c57db0380b16eaa8d52f281c1cebf7bef37388a4ff13d9a68cc31e464f5ed871038a598e14ca7312

Download Submit
C:\Users\Admin\AppData\Local\Temp\file.bat

Filesize
238B

MD5
fdb5554346e7388c6bc358c16c448995

SHA1
17957bbe381d434574e1fc15ed5c74084fda26fe

SHA256
898bc3e85e09e353a36612b5911aa2636c06a94443dbec4e62c6b8cf2412640c

SHA512
3eec1e0dab21861bcb73cbfe3ea7234768443dd02c62a55919ad7e693501ff886946d74a8f75b7f580fa5251472a13ff55d187396c8d65fe9c2220f2f6da0674

Download Submit
C:\Users\Admin\AppData\Roaming\Opus.exe

Filesize
348KB

MD5
96bdd68cfa84ba3d7390b4e172837370

SHA1
f3f5908c8138881e04db463a78172ca510073788

SHA256
0911819d0e050ddc5884ea40b4b39a716a7ef8de0179d0dfded9f043546cede9

SHA512
17775d7dbf6776620f59a0a2f4ea2753a4ddf39a9b05e7f2d28dae2e48a809c8aa30382d5fdddff70c76d948f6a1991a1585271e3b820576feb18825b178f4b0

Download Submit
C:\Users\Admin\AppData\Roaming\Opus.exe

Filesize
348KB

MD5
96bdd68cfa84ba3d7390b4e172837370

SHA1
f3f5908c8138881e04db463a78172ca510073788

SHA256
0911819d0e050ddc5884ea40b4b39a716a7ef8de0179d0dfded9f043546cede9

SHA512
17775d7dbf6776620f59a0a2f4ea2753a4ddf39a9b05e7f2d28dae2e48a809c8aa30382d5fdddff70c76d948f6a1991a1585271e3b820576feb18825b178f4b0

Download Submit
memory/3368-148-0x0000000006080000-0x00000000060B2000-memory.dmp

Filesize
200KB

Download
memory/3368-155-0x0000000006FE0000-0x0000000006FEE000-memory.dmp

Filesize
56KB

Download
memory/3368-146-0x0000000004E20000-0x0000000004E86000-memory.dmp

Filesize
408KB

Download
memory/3368-147-0x0000000005A90000-0x0000000005AAE000-memory.dmp

Filesize
120KB

Download
memory/3368-144-0x0000000004990000-0x00000000049B2000-memory.dmp

Filesize
136KB

Download
memory/3368-149-0x0000000070720000-0x000000007076C000-memory.dmp

Filesize
304KB

Download
memory/3368-150-0x0000000005FE0000-0x0000000005FFE000-memory.dmp

Filesize
120KB

Download
memory/3368-151-0x00000000073F0000-0x0000000007A6A000-memory.dmp

Filesize
6.5MB

Download
memory/3368-152-0x0000000006DA0000-0x0000000006DBA000-memory.dmp

Filesize
104KB

Download
memory/3368-153-0x0000000006E00000-0x0000000006E0A000-memory.dmp

Filesize
40KB

Download
memory/3368-154-0x0000000007030000-0x00000000070C6000-memory.dmp

Filesize
600KB

Download
memory/3368-145-0x0000000004C80000-0x0000000004CE6000-memory.dmp

Filesize
408KB

Download
memory/3368-156-0x00000000070D0000-0x00000000070EA000-memory.dmp

Filesize
104KB

Download
memory/3368-157-0x0000000007020000-0x0000000007028000-memory.dmp

Filesize
32KB

Download
memory/3368-143-0x0000000005000000-0x0000000005628000-memory.dmp

Filesize
6.2MB

Download
memory/3368-142-0x0000000000CE0000-0x0000000000D16000-memory.dmp

Filesize
216KB

Download
memory/3780-161-0x0000000070720000-0x000000007076C000-memory.dmp

Filesize
304KB

Download
memory/4196-164-0x0000000070720000-0x000000007076C000-memory.dmp

Filesize
304KB

Download