324e62c214d1c449a55826770f78f452d02799156684d34528090cc9a55cd2df

Resubmissions

17-08-2024 02:14

240817-cn4gds1gjg 3

17-08-2024 02:10

240817-cl1mqa1fje 3

Analysis

max time kernel
122s
max time network
124s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
17-08-2024 02:10

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

expression.json
Size

103B
MD5

7e0e4d4fd3b522995d73072e1f3530d5
SHA1

6faff0f2968d1481bf479c8e849e29118a3d0931
SHA256

9b2b51a8197f946eb357e5bb1e98928ce50eb9f48641a7197fd2954c24ea9edf
SHA512

05f3233790508825edfe9c3d1262fe5017986c655c297a2bdee830ce726e63477d73b6cc30671f01c9872a93dbc19ba4fab700ea76b7453c33e32db7c8919f4d

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

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

Modifies registry class 9 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\.json	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\.json\ = "json_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\json_auto_file\shell\Read	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\json_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\json_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\json_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\json_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\json_auto_file\shell\Read\command	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2852	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2852	AcroRd32.exe
2852	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2080 wrote to memory of 2772	2080	cmd.exe	31
PID 2080 wrote to memory of 2772	2080	cmd.exe	31
PID 2080 wrote to memory of 2772	2080	cmd.exe	31
PID 2772 wrote to memory of 2852	2772	rundll32.exe	32
PID 2772 wrote to memory of 2852	2772	rundll32.exe	32
PID 2772 wrote to memory of 2852	2772	rundll32.exe	32
PID 2772 wrote to memory of 2852	2772	rundll32.exe	32

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\expression.json
1⤵
- Suspicious use of WriteProcessMemory
PID:2080
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\expression.json
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2772
- - 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\expression.json"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2852

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

Loading Replay Monitor...

Downloads

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

Filesize
3KB

MD5
b2e9d90f88d0dea2f39333dbd3c3eea1

SHA1
bf4e0811abe670c1afe689d32a0f71f3fc36630f

SHA256
0131dd70e6cdefae10b687f2cd42deb391a994e0e5f06a19ca4833628368210d

SHA512
7b6cb7d11e41079c7a0ff7a097328dd4fcbef3fe0f2c2a6a8b46315e60b87ac8c4cfb1c5ede81034008660129d5f580d20fb01766693e265ac115b5158b9790f

Download Submit