0ecfa9e9370f383a669aad9db9a28109c24226496b519e7383713c7c1deaf861

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
22-03-2024 17:01

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General

Target

Chronos/src/utils/DownloadToken.py
Size

611B
MD5

d52652631461018dbb184888e782e0b6
SHA1

f2d37db5177fd4474d6870fb64044307816541e7
SHA256

4d297fe32fecea722009d7ad975b6b698c41753e791d1be3ed1c55f097ac63b9
SHA512

42332a2b03462aa462e74b4be2de2f7dd60583103c57009fe4ca711113cc0c6237755e482da75c19c72d8ffdc8b9ed3c337b6b63693fb9efd82067a483c23588

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

Processes:

rundll32.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\py_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\py_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\py_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\.py\ = "py_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\py_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\py_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\.py	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\py_auto_file\shell\Read	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

AcroRd32.exe

pid process

2680 AcroRd32.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

AcroRd32.exe

pid process

2680 AcroRd32.exe
2680 AcroRd32.exe

pid	process
2680	AcroRd32.exe

pid	process
2680	AcroRd32.exe
2680	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 2368 wrote to memory of 2984	2368	cmd.exe	rundll32.exe
PID 2368 wrote to memory of 2984	2368	cmd.exe	rundll32.exe
PID 2368 wrote to memory of 2984	2368	cmd.exe	rundll32.exe
PID 2984 wrote to memory of 2680	2984	rundll32.exe	AcroRd32.exe
PID 2984 wrote to memory of 2680	2984	rundll32.exe	AcroRd32.exe
PID 2984 wrote to memory of 2680	2984	rundll32.exe	AcroRd32.exe
PID 2984 wrote to memory of 2680	2984	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Chronos\src\utils\DownloadToken.py
1⤵
- Suspicious use of WriteProcessMemory
PID:2368

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Chronos\src\utils\DownloadToken.py
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2984

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\Chronos\src\utils\DownloadToken.py"
3⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:2680

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
5a49e25497d0adefaee67c69e6ccb9a3

SHA1
671c13439b0606a77601eb234dcf7136efc884d9

SHA256
bf43c0f6c762011b1eeccabc6a8f3a5dd744e883ee267ece92631508dec6bf46

SHA512
787f3a9ee605a1d0b73bd53fea0f8b5a939217d9e08a0e3073ac3aaebb59e276fbd6df8fb3650dc0ccd9e1434757e2440ce9adf5f482f100df392d0b3ea7d4c9

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