e91056d140d4b1f647fa92d6ddab5c986c8eb54f738f8c84ce0de009ba901580

Resubmissions

21/07/2024, 19:41

240721-yehdfs1epe 1

21/07/2024, 19:41

240721-yd3m1a1ene 7

Analysis

max time kernel
121s
max time network
124s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
21/07/2024, 19:41

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General

Target

README.md
Size

1KB
MD5

337c68c66453876fc6dc2afb41f901c8
SHA1

52d07978c63e76b53339a9586a9be261b4cf4725
SHA256

cb013ee9b437203fa343cdd8712b0bb3f56b1b41b1f860d72d7d75466b73a461
SHA512

3ed8f2adb78372b79772e9980ff5f586f1b75d1358ba176665850b0f3ff1bc34b532b674fc22140b845e6d34e6f34c7659db0da02522e3dcf9ee652f1bba548b

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
Set value (str)	\REGISTRY\USER\S-1-5-21-2958949473-3205530200-1453100116-1000_CLASSES\md_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2958949473-3205530200-1453100116-1000_CLASSES\.md	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2958949473-3205530200-1453100116-1000_CLASSES\md_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2958949473-3205530200-1453100116-1000_CLASSES\md_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2958949473-3205530200-1453100116-1000_CLASSES\md_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2958949473-3205530200-1453100116-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2958949473-3205530200-1453100116-1000_CLASSES\md_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2958949473-3205530200-1453100116-1000_CLASSES\.md\ = "md_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2958949473-3205530200-1453100116-1000_CLASSES\md_auto_file\shell\Read\command	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2716	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2716	AcroRd32.exe
2716	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2260 wrote to memory of 2300	2260	cmd.exe	31
PID 2260 wrote to memory of 2300	2260	cmd.exe	31
PID 2260 wrote to memory of 2300	2260	cmd.exe	31
PID 2300 wrote to memory of 2716	2300	rundll32.exe	32
PID 2300 wrote to memory of 2716	2300	rundll32.exe	32
PID 2300 wrote to memory of 2716	2300	rundll32.exe	32
PID 2300 wrote to memory of 2716	2300	rundll32.exe	32

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\README.md
1⤵
- Suspicious use of WriteProcessMemory
PID:2260
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\README.md
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2300
- - 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\README.md"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2716

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
8ecb777c8ba4494fbfda97f87d1f371f

SHA1
92095ee1361c393cd503215180f6dc141bec1c3f

SHA256
1e988551a70e858f72477e5c937f5fa44bf5f87051696612dcd4ec2658a06eff

SHA512
1154d605334f09bd18fa63d4818a2a803851333adda60880f212d824e3c9594aa314ab53fad91c5293f177b58ac1b00cd63fcbe469ceb8797af36e6fcea2770e

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