0ecfa9e9370f383a669aad9db9a28109c24226496b519e7383713c7c1deaf861

Analysis

max time kernel
121s
max time network
126s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
22-03-2024 17:01

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General

Target

Chronos/src/utils/__pycache__/blockAllFriends.cpython-310.pyc
Size

841B
MD5

b0a0e84bf2777b80664ca2a2c47323ce
SHA1

432491cab9dc7522aa47feefbb5ff5f69fc6e5a4
SHA256

60ad612f9f5b1118e6841e13e6bcc35b17a39ebd48761bbfc7253df2f3e0930d
SHA512

cb4c22fd7e4a216847299dbedc0ef428b8c5ffd8da1f0a29cc3269e67f9404d234d41554030f39deed917cfc3bcfaa954560c11baa2d092478e2408bf5309b22

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-1-5-21-2248906074-2862704502-246302768-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\pyc_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\.pyc\ = "pyc_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\pyc_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_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-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\pyc_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\.pyc	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\pyc_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\pyc_auto_file\shell	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

AcroRd32.exe

pid process

2572 AcroRd32.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

AcroRd32.exe

pid process

2572 AcroRd32.exe
2572 AcroRd32.exe

pid	process
2572	AcroRd32.exe

pid	process
2572	AcroRd32.exe
2572	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 2620 wrote to memory of 2588	2620	cmd.exe	rundll32.exe
PID 2620 wrote to memory of 2588	2620	cmd.exe	rundll32.exe
PID 2620 wrote to memory of 2588	2620	cmd.exe	rundll32.exe
PID 2588 wrote to memory of 2572	2588	rundll32.exe	AcroRd32.exe
PID 2588 wrote to memory of 2572	2588	rundll32.exe	AcroRd32.exe
PID 2588 wrote to memory of 2572	2588	rundll32.exe	AcroRd32.exe
PID 2588 wrote to memory of 2572	2588	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Chronos\src\utils\__pycache__\blockAllFriends.cpython-310.pyc
1⤵
- Suspicious use of WriteProcessMemory
PID:2620

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\__pycache__\blockAllFriends.cpython-310.pyc
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2588

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\__pycache__\blockAllFriends.cpython-310.pyc"
3⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:2572

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
ed8f9f27a3debe0c1d9adf95be80925b

SHA1
a6919b62748b4489d44a5312a8b8fa37c2dfd801

SHA256
47f48b47bbdcdf7fb94a05e3eda5080af2a3c9c2f71923f5c1d9e82b57e4fa12

SHA512
907d1e5a7e5332d969fb86344a4d6356b561de2445162a7ad124186035badb68ffd65d565a63e3f30f9ee6c4667fee21b7b59e68d58979dd2d7b4940013dd68b

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