fb025a0aa34315c3287c087cc598598732f8e96cbcba4cd5ea2d728a270e5467

Resubmissions

12-05-2024 04:36

240512-e8aqxsca79 6

12-05-2024 04:26

240512-e2tkfsbf56 9

12-05-2024 04:22

240512-ezqqsabe56 10

12-05-2024 04:18

240512-ewyxzsbd26 8

Analysis

max time kernel
122s
max time network
122s
platform
windows7_x64
resource
win7-20240419-en
resource tags

arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
submitted
12-05-2024 04:36

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General

Target

Synapse.pyc
Size

1.9MB
MD5

250918e06dd744f05d0fe31a3ce1a43f
SHA1

c6e73738b44f91bd0ac1caf596600d8035e83522
SHA256

7247caf33200a867f3957f2bd70a10e6f4fa319a904c0e77a5620de69dc1f3ed
SHA512

bbe956c1a5a32ed23327ac363a886eff70a607b98dbb756bf89d62d52bde0363e0dd37023a771a4d3788049fe43035ae9ca96a74851fb0b2da2d5396af8ab0d0
SSDEEP

12288:doLzJrwkD2KvY0xVd+KVZT7lJAtYc+lZxLfa7l+XB4TYpInNQ:i

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-1-5-21-481678230-3773327859-3495911762-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000_CLASSES\pyc_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000_CLASSES\.pyc	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000_CLASSES\.pyc\ = "pyc_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000_CLASSES\pyc_auto_file\shell\Read	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000_CLASSES\pyc_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000_CLASSES\pyc_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000_CLASSES\pyc_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000_CLASSES\pyc_auto_file\shell\Read\command	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2752	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2752	AcroRd32.exe
2752	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1732 wrote to memory of 2404	1732	cmd.exe	29
PID 1732 wrote to memory of 2404	1732	cmd.exe	29
PID 1732 wrote to memory of 2404	1732	cmd.exe	29
PID 2404 wrote to memory of 2752	2404	rundll32.exe	30
PID 2404 wrote to memory of 2752	2404	rundll32.exe	30
PID 2404 wrote to memory of 2752	2404	rundll32.exe	30
PID 2404 wrote to memory of 2752	2404	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Synapse.pyc
1⤵
- Suspicious use of WriteProcessMemory
PID:1732
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Synapse.pyc
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2404
- - 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\Synapse.pyc"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2752

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
4b0a2f4e132e6ff3fa800e5abf9f3c06

SHA1
f69e4b527407e30ec916e83f906526dc09483ea6

SHA256
2268d0caeff22420083fb2d6d91fae557d3b0ec0d1ef5977f1c0e826653283e1

SHA512
40c837fcf7b951743dce26d8d5200352408a882c70455f0ac85382e722e7f871119e314fd04c1e3d8c1431f1b359b7309dbf95ece71eab4b10b9327df335d0cd

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