7bfce5debe9ddef70ca552559fe60bb337eeb39a22403dee6a6feeb121926d33

Analysis

max time kernel
121s
max time network
123s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
01-07-2024 12:51

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General

Target

SilverTribeFree.pyc
Size

5KB
MD5

21a62bf61dbc401bbf644efe112d28f3
SHA1

ec59674da44ab6d12b2d76893a62b30f309f7a25
SHA256

b0055d611e706918d79e396ab621a0b7540d6b00d839c85134cfb0966cb15ae1
SHA512

34388639bcc4fc98752a8114b58874d273ff45f1085809e7f0ad61d2f9b3b535db9b07926ba2333282d2263e673ece3a66a3df1da0b24b6d9c1ab0039dc0a361
SSDEEP

96:Ie96XLq3nESdjNNktEO6LuwyqtTzSxGWWPOswo9QJAceNAKo1rdoKg0+bOWzi9ju:x0StN2EtyqtTvWWaxxKo1rf+KMi4L

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-1-5-21-2721934792-624042501-2768869379-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\pyc_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\.pyc	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\.pyc\ = "pyc_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\pyc_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\pyc_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\pyc_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\pyc_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_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

2516 AcroRd32.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

AcroRd32.exe

pid process

2516 AcroRd32.exe
2516 AcroRd32.exe

pid	process
2516	AcroRd32.exe

pid	process
2516	AcroRd32.exe
2516	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 1720 wrote to memory of 2812	1720	cmd.exe	rundll32.exe
PID 1720 wrote to memory of 2812	1720	cmd.exe	rundll32.exe
PID 1720 wrote to memory of 2812	1720	cmd.exe	rundll32.exe
PID 2812 wrote to memory of 2516	2812	rundll32.exe	AcroRd32.exe
PID 2812 wrote to memory of 2516	2812	rundll32.exe	AcroRd32.exe
PID 2812 wrote to memory of 2516	2812	rundll32.exe	AcroRd32.exe
PID 2812 wrote to memory of 2516	2812	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\SilverTribeFree.pyc
1⤵
- Suspicious use of WriteProcessMemory
PID:1720

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\SilverTribeFree.pyc
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2812

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\SilverTribeFree.pyc"
3⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:2516

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents
Filesize
3KB

MD5
929547072b4ecda8ed0fdbddc96b2b7f

SHA1
8d3106163bd99cd464ecc7e892e6a1478a9d722d

SHA256
aeca73b877d38d7341b216dd50fab4bd874f750bbc765126050319afe01bc9c0

SHA512
dc18114b674c9d27c2dc0e2e52ba4c2f39723d14b3c553f4dbdb13ac2301202a1896fd8d8d7eec8280e53135b04a14291b544d8589b8987978c9f4b945b3258b

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