e7c9e8ba3c0dc98fc22b5564c29ad8cd9fe2e08c05b37c860de6e798fc781d6e

Analysis

max time kernel
155s
max time network
48s
platform
windows7_x64
resource
win7-20230703-en
resource tags

arch:x64arch:x86image:win7-20230703-enlocale:en-usos:windows7-x64system
submitted
11/07/2023, 02:43

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General

Target

x-000atl.rpyc
Size

1KB
MD5

90a11eb3abada2431c21302376c47d0f
SHA1

56c06c5394fc7163698f8097708c6b27a2758292
SHA256

504d32dc44fd5fc06f1d81e82cfeca23921afc645e692a1fb149ea6256548598
SHA512

70446877d0e9cebc6c1891aacca44a66237f11e793c3f4d37c1f64e7770b242be01e0cfbef2d39d6cfb823a015dc4389f5134614c293c786e53482b0675a74ff

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-1-5-21-3891603265-141683679-4067940827-1000_CLASSES\rpyc_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3891603265-141683679-4067940827-1000_CLASSES\rpyc_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3891603265-141683679-4067940827-1000_CLASSES\rpyc_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3891603265-141683679-4067940827-1000_CLASSES\.rpyc	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3891603265-141683679-4067940827-1000_CLASSES\.rpyc\ = "rpyc_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3891603265-141683679-4067940827-1000_CLASSES\rpyc_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3891603265-141683679-4067940827-1000_CLASSES\rpyc_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3891603265-141683679-4067940827-1000_CLASSES\rpyc_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3891603265-141683679-4067940827-1000_Classes\Local Settings	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2208	AcroRd32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2208	AcroRd32.exe
2208	AcroRd32.exe
2208	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1508 wrote to memory of 1408	1508	cmd.exe	30
PID 1508 wrote to memory of 1408	1508	cmd.exe	30
PID 1508 wrote to memory of 1408	1508	cmd.exe	30
PID 1408 wrote to memory of 2208	1408	rundll32.exe	31
PID 1408 wrote to memory of 2208	1408	rundll32.exe	31
PID 1408 wrote to memory of 2208	1408	rundll32.exe	31
PID 1408 wrote to memory of 2208	1408	rundll32.exe	31

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\x-000atl.rpyc
1⤵
- Suspicious use of WriteProcessMemory
PID:1508
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\x-000atl.rpyc
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:1408
- - 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\x-000atl.rpyc"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2208

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

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

Filesize
3KB

MD5
552cd8dfad823fe8c6d48bbbdf30ced4

SHA1
05deb74cd6de33e76388eb94d82c3df9cbd5fdcf

SHA256
0db6555d4a619aef3eacc40dc87fe2ed90a9902bbee965b6562196bc565afa84

SHA512
d8635716be837f95c22c61675ff6c7271816d536c73d04c9eb67157589140bb7984525ee8880b75034bd1056ed6f661181795d2f808602bef0ece7aa9c2177a5

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