e8227a9f4a6d9f7bfd6d911ca3b7c65fc2e21f4d7c2e09fdb59f35d45ec9c539

Resubmissions

24-06-2024 07:22

240624-h7nsyatfkr 3

24-06-2024 07:19

240624-h52l1stenl 4

Analysis

max time kernel
117s
max time network
117s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
24-06-2024 07:22

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General

Target

nexusLatest.rbxm
Size

88KB
MD5

4393ed07caf83c6f62262a1fe11f0e79
SHA1

1445d4ed1d91bdf33340ea10855639081a68bac4
SHA256

e8227a9f4a6d9f7bfd6d911ca3b7c65fc2e21f4d7c2e09fdb59f35d45ec9c539
SHA512

cb0e3d7194d8ac9f9f85488f3f6b8c8ffadaa3d0d524ff8c10c040299c05fd048a8c87cf065a17e92881ae0b541e06a994142e7f67015c7c96a58f8140441990
SSDEEP

1536:FAksIWfJ3jlUfNwbvd0MXI84mcFq3oNjz6JlArujLShy8k4:R+djIwmTNFqYdz6Xp/Shb

Score

3^/10

Malware Config

Signatures

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

System Information Discovery
T1082

Modifies registry class 9 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\rbxm_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\rbxm_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\rbxm_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\rbxm_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\.rbxm	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\.rbxm\ = "rbxm_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\rbxm_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\rbxm_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2712	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2712	AcroRd32.exe
2712	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2872 wrote to memory of 2536	2872	cmd.exe	29
PID 2872 wrote to memory of 2536	2872	cmd.exe	29
PID 2872 wrote to memory of 2536	2872	cmd.exe	29
PID 2536 wrote to memory of 2712	2536	rundll32.exe	30
PID 2536 wrote to memory of 2712	2536	rundll32.exe	30
PID 2536 wrote to memory of 2712	2536	rundll32.exe	30
PID 2536 wrote to memory of 2712	2536	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\nexusLatest.rbxm
1⤵
- Suspicious use of WriteProcessMemory
PID:2872
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\nexusLatest.rbxm
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2536
- - C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
    "C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Local\Temp\nexusLatest.rbxm"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2712

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Resubmissions

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads