fb025a0aa34315c3287c087cc598598732f8e96cbcba4cd5ea2d728a270e5467

Resubmissions

12-05-2024 04:36

240512-e8aqxsca79 6

12-05-2024 04:26

240512-e2tkfsbf56 9

12-05-2024 04:22

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12-05-2024 04:18

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Analysis

max time kernel
1563s
max time network
1563s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
12-05-2024 04:26

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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
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\pyc_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\.pyc	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\.pyc\ = "pyc_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\pyc_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\pyc_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\pyc_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\pyc_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\pyc_auto_file\shell\Read\command	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2088	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2088	AcroRd32.exe
2088	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1640 wrote to memory of 2616	1640	cmd.exe	29
PID 1640 wrote to memory of 2616	1640	cmd.exe	29
PID 1640 wrote to memory of 2616	1640	cmd.exe	29
PID 2616 wrote to memory of 2088	2616	rundll32.exe	30
PID 2616 wrote to memory of 2088	2616	rundll32.exe	30
PID 2616 wrote to memory of 2088	2616	rundll32.exe	30
PID 2616 wrote to memory of 2088	2616	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Synapse.pyc
1⤵
- Suspicious use of WriteProcessMemory
PID:1640
- 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:2616
- - 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:2088

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
820f06671a3665c71a98cb1f0ac6b0a9

SHA1
0fe018416fd382c4e04f362c45d8ec092c543c56

SHA256
b4eb49e447a137aeba3ce373359fad5a2faca376e2efb082567f3cc9dca774bc

SHA512
ab515d9d0299bd07094cafcd42d78523360cb3a9921e4d88275a5ee65a716c4ec5956df6938611d59f8c5e35172cecb5ab9711d8e637366a038f19f016279c89

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