6627a3868c3b9b01c68297da1234e6d9c52dadd756b5c20dd6b965fdf337c16c

Analysis

max time kernel
119s
max time network
122s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
30-10-2024 19:05

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General

Target

boltchecker.pyc
Size

239KB
MD5

251fbdc89d2e7e1caeccbd006e5ee89c
SHA1

eb08bb07177e8785accb4e72230c2f78416c560e
SHA256

92b59ba79341ed9bdd5b7c7b76c027a898255e6ec518198283f8698431dc9b70
SHA512

b9c6a17d47bb601aa8946592e06cc77271955a69c831fb252401cd0c90a842ce3b28f3672d28797dbc8bdfe37bee3cd50b60cef6c5637a6fc26d97c04740d03b
SSDEEP

3072:JmLzPvNjhyltG43ILbd/x0GhhegKoXoH9E4XV2jKZ:JmLDrp0xUhegKoXoH9E4XV2jS

Score

3^/10

discovery

Malware Config

Signatures

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

System Information Discovery
T1082
System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
discovery

System Language Discovery
T1614.001

Processes:

AcroRd32.exe

description ioc process

Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language AcroRd32.exe
Modifies registry class 1 IoCs

Processes:

rundll32.exe

description ioc process

Key created \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_Classes\Local Settings rundll32.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

AcroRd32.exe

pid process

2764 AcroRd32.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

AcroRd32.exe

pid process

2764 AcroRd32.exe
2764 AcroRd32.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AcroRd32.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_Classes\Local Settings	rundll32.exe

pid	process
2764	AcroRd32.exe

pid	process
2764	AcroRd32.exe
2764	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 2204 wrote to memory of 2720	2204	cmd.exe	rundll32.exe
PID 2204 wrote to memory of 2720	2204	cmd.exe	rundll32.exe
PID 2204 wrote to memory of 2720	2204	cmd.exe	rundll32.exe
PID 2720 wrote to memory of 2764	2720	rundll32.exe	AcroRd32.exe
PID 2720 wrote to memory of 2764	2720	rundll32.exe	AcroRd32.exe
PID 2720 wrote to memory of 2764	2720	rundll32.exe	AcroRd32.exe
PID 2720 wrote to memory of 2764	2720	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\boltchecker.pyc
1⤵
- Suspicious use of WriteProcessMemory
PID:2204

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\boltchecker.pyc
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2720

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\boltchecker.pyc"
3⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:2764

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

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
0701261a3312e6801054ef15e114d097

SHA1
70a0c1fe1955786f00e4d6964a46fd1e34982f76

SHA256
cec6f65db6c6f36d94a4a23221fde3aabe673dd2b73c11d129fe10ac3cceb8d7

SHA512
91e65467b47e7cc543f4e97772087c754af8978ef5b6e2393772ca9030f84b5cab801e42700a34078b159980da5935d07095d36837c56b82bb7fd30f625a2635

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