eb3d53ab3832363ac56d1cd70dbb35fa4675d2dbe828165c881b1e7ea553e29e

Analysis

max time kernel
207s
max time network
106s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
25-11-2022 22:22

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General

Target

native/routing/connectivity.pyo
Size

1KB
MD5

4b15c5f4cd856e6b3e24f1b324489275
SHA1

66d97dce89e73387e74708ca724ed8565b668fb6
SHA256

41ddba2def4a0b2ab39c908b0d1fb881be67bc2a699738f95ad681088cac2153
SHA512

332ab0449363a8fbafb270fa84fe5854a2a15847e40092d2fe61eee1ee9995803da2b97b1229d082b32dcf4f5c1291adf3bc66acc0480c00c00f3e901b7c73a5

Score

3^/10

Malware Config

Signatures

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

System Information Discovery
T1082

Modifies registry class 10 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000_CLASSES\.pyo\ = "pyo_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000_CLASSES\pyo_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\MuiCache	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000_CLASSES\pyo_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000_CLASSES\.pyo	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000_CLASSES\pyo_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000_CLASSES\pyo_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000_CLASSES\pyo_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000_CLASSES\pyo_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
1484	AcroRd32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
1484	AcroRd32.exe
1484	AcroRd32.exe
1484	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1524 wrote to memory of 1104	1524	cmd.exe	29
PID 1524 wrote to memory of 1104	1524	cmd.exe	29
PID 1524 wrote to memory of 1104	1524	cmd.exe	29
PID 1104 wrote to memory of 1484	1104	rundll32.exe	30
PID 1104 wrote to memory of 1484	1104	rundll32.exe	30
PID 1104 wrote to memory of 1484	1104	rundll32.exe	30
PID 1104 wrote to memory of 1484	1104	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\native\routing\connectivity.pyo
1⤵
- Suspicious use of WriteProcessMemory
PID:1524
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\native\routing\connectivity.pyo
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:1104
- - 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\native\routing\connectivity.pyo"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:1484

Network

MITRE ATT&CK Enterprise v6

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

memory/1104-76-0x0000000000000000-mapping.dmp

Download
memory/1484-81-0x0000000000000000-mapping.dmp

Download
memory/1484-82-0x0000000076531000-0x0000000076533000-memory.dmp

Filesize
8KB

Download
memory/1524-54-0x000007FEFC071000-0x000007FEFC073000-memory.dmp

Filesize
8KB

Download