43351b786062b5e3e14e3c77d36b066c1a0b783429f22c8f9cf42171648347e8

Resubmissions

20/02/2024, 15:40

240220-s3715abd72 3

20/02/2024, 15:38

20/02/2024, 15:33

20/02/2024, 15:32

20/02/2024, 15:13

Analysis

max time kernel
122s
max time network
128s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
20/02/2024, 15:13

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General

Target

data/aop1/functions/00.mcfunction
Size

2KB
MD5

a678d158e0e0d1febd1f5147ac77ccc5
SHA1

7b8adfb4580c30b4fbe71bec0aae440569641dda
SHA256

f58aa58b9901dd5b153fb7f548c05aef13a3f092c04ea9cd8b5fa8deded41d8a
SHA512

4601f79e87d96e9cc47e7cdcc835a51f8580c0ab7cf9e5ea0919d77f2702346c9053e9d7d80ea79b80c3469a8f1c5fda3bd73f8aa84f831d8a645f4c7a1e065a

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-1-5-21-2444714103-3190537498-3629098939-1000_CLASSES\.mcfunction	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2444714103-3190537498-3629098939-1000_CLASSES\.mcfunction\ = "mcfunction_auto_file"	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2444714103-3190537498-3629098939-1000_CLASSES\mcfunction_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2444714103-3190537498-3629098939-1000_CLASSES\mcfunction_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2444714103-3190537498-3629098939-1000_CLASSES\mcfunction_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2444714103-3190537498-3629098939-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2444714103-3190537498-3629098939-1000_CLASSES\mcfunction_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2444714103-3190537498-3629098939-1000_CLASSES\mcfunction_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2444714103-3190537498-3629098939-1000_CLASSES\mcfunction_auto_file\shell\Read	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2624	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2624	AcroRd32.exe
2624	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2400 wrote to memory of 2868	2400	cmd.exe	29
PID 2400 wrote to memory of 2868	2400	cmd.exe	29
PID 2400 wrote to memory of 2868	2400	cmd.exe	29
PID 2868 wrote to memory of 2624	2868	rundll32.exe	30
PID 2868 wrote to memory of 2624	2868	rundll32.exe	30
PID 2868 wrote to memory of 2624	2868	rundll32.exe	30
PID 2868 wrote to memory of 2624	2868	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\data\aop1\functions\00.mcfunction
1⤵
- Suspicious use of WriteProcessMemory
PID:2400
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\data\aop1\functions\00.mcfunction
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2868
- - 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\data\aop1\functions\00.mcfunction"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2624

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents

Filesize
3KB

MD5
078c2c6a12c88be0c4efe7604d98777f

SHA1
159435488a8b3db64f0b860ddfca8d8d9776989f

SHA256
61cd6c52567e008277c1701e22db3b8d1d1b63046cf9bf07769a1666abb4f573

SHA512
05d3b97efc152dec4b1b0b29cab25720d5c56a1fc40d0884076fe903fbd08cd21ac83edbb9649212e17e3eeccf9dc1c57045b201d9eee8dd6cffe6a0e45ea86c

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