6f740ba69a5020a316d67e0341179ad03f9820fdde6501591255e9e98b06c0ae

Analysis

max time kernel
150s
max time network
125s
platform
windows7_x64
resource
win7-20230831-en
resource tags

arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
submitted
06-09-2023 22:01

Target

os.pyc
Size

27KB
MD5

d845a1698a5e4a9a3992ca514b924a52
SHA1

daef45b912f6ebc4d7d6d2d1ed7234b1f7769954
SHA256

ec16d78fff77115582630db2aa0167617e5e490785f634172e9570f014322f3c
SHA512

5a8ba0a5c0b45812b35d3546b5c3fbc48b445aee32089417e261d3ddfea508d3df7b3536c11d662d6993a6fb09de4d234b1b1896a810da0d2d60cfc1edb9942b
SSDEEP

768:BCa184aJH8ys0lG5ufiMq+7KTLrLjL1LDL3LnLnLcyW0t:oaeJH8ysAiMq+7K1Nt

Score

3^/10

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

System Information Discovery
T1082

Modifies registry class 9 IoCs

Processes:

rundll32.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3513876443-2771975297-1923446376-1000_CLASSES\pyc_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3513876443-2771975297-1923446376-1000_CLASSES\.pyc	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3513876443-2771975297-1923446376-1000_CLASSES\.pyc\ = "pyc_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3513876443-2771975297-1923446376-1000_CLASSES\pyc_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3513876443-2771975297-1923446376-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3513876443-2771975297-1923446376-1000_CLASSES\pyc_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3513876443-2771975297-1923446376-1000_CLASSES\pyc_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3513876443-2771975297-1923446376-1000_CLASSES\pyc_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3513876443-2771975297-1923446376-1000_CLASSES\pyc_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

AcroRd32.exe

pid process

2652 AcroRd32.exe
Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

AcroRd32.exe

pid process

2652 AcroRd32.exe
2652 AcroRd32.exe
2652 AcroRd32.exe

pid	process
2652	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 2356 wrote to memory of 2268	2356	cmd.exe	rundll32.exe
PID 2356 wrote to memory of 2268	2356	cmd.exe	rundll32.exe
PID 2356 wrote to memory of 2268	2356	cmd.exe	rundll32.exe
PID 2268 wrote to memory of 2652	2268	rundll32.exe	AcroRd32.exe
PID 2268 wrote to memory of 2652	2268	rundll32.exe	AcroRd32.exe
PID 2268 wrote to memory of 2652	2268	rundll32.exe	AcroRd32.exe
PID 2268 wrote to memory of 2652	2268	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\os.pyc
1⤵
- Suspicious use of WriteProcessMemory
PID:2356
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\os.pyc
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2268
- - 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\os.pyc"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2652

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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

Filesize
3KB

MD5
5ba68c93e1581eaa930cf6b4bee30fd8

SHA1
7da98a1ffddae1629195e6bceaf2ebb60db349f0

SHA256
43b27cfc57272bdb768f163315c35745e015122fb10b9db4dbb73af95f8ce311

SHA512
e289f8931bae839d6d244ba3efa1f9f7a5e2192c07e68f799c55760587decd1a5c8756b9a61606c5d4cf6f33792b8df25c1a90c5a1c2fefcc7c6b45e7eda6117

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