ebdddbbb2a2db91ce6e5b5e170ab8e1fd5e2a39ef1a827f96efdb80de9f7fd11

Analysis

max time kernel
102s
max time network
18s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
10-08-2024 20:12

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General

Target

Display Driver Uninstaller.pdb
Size

683KB
MD5

54e57cb06a1e0b6fbb7d06c079ed384d
SHA1

c0605d364f8d49988c11336f3e2d57237c3796bf
SHA256

2117ff4448f67633ae07bd5e5a6348bf839e77508a768260fc0d683536351b8f
SHA512

6c832d688f0f4c240db98477210dfe75509ac2d6ca9375f8242f0e82efd501884e12b97bf738374aa7ae02c040d15677ca009ba0d25cd24a01bf8d8c03c85f53
SSDEEP

6144:V8FIrY7wnCDbM+snE6ll0L8VtAjEOX0pE05iZkDoKDla/:VoenEQlsA

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-1-5-21-2257386474-3982792636-3902186748-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2257386474-3982792636-3902186748-1000_CLASSES\pdb_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2257386474-3982792636-3902186748-1000_CLASSES\pdb_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2257386474-3982792636-3902186748-1000_CLASSES\pdb_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2257386474-3982792636-3902186748-1000_CLASSES\pdb_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2257386474-3982792636-3902186748-1000_CLASSES\.pdb	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2257386474-3982792636-3902186748-1000_CLASSES\.pdb\ = "pdb_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2257386474-3982792636-3902186748-1000_CLASSES\pdb_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2257386474-3982792636-3902186748-1000_CLASSES\pdb_auto_file\shell\Read\command	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1964	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1964	AcroRd32.exe
1964	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2928 wrote to memory of 2000	2928	cmd.exe	30
PID 2928 wrote to memory of 2000	2928	cmd.exe	30
PID 2928 wrote to memory of 2000	2928	cmd.exe	30
PID 2000 wrote to memory of 1964	2000	rundll32.exe	31
PID 2000 wrote to memory of 1964	2000	rundll32.exe	31
PID 2000 wrote to memory of 1964	2000	rundll32.exe	31
PID 2000 wrote to memory of 1964	2000	rundll32.exe	31

C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\Display Driver Uninstaller.pdb"
1⤵
- Suspicious use of WriteProcessMemory
PID:2928
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Display Driver Uninstaller.pdb
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2000
- - 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\Display Driver Uninstaller.pdb"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:1964

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

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Downloads

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

Filesize
3KB

MD5
828b8aaf7ae8afebd25dd640f4234b0a

SHA1
916f0e358713c2ac7bb78871ec6cee25c29499f9

SHA256
daa1b88e360de755d5a78325afb9da8041102ba2a7613c1eceae68f95304981f

SHA512
e29d1b5d4c14665500122922c13ac87573182258b2fb39d4b603b618f5132c28491c507eaf63f190c0da913c7deffccf90544fc70d77e5f27e2131a288db091a

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