aee777ead4791c2d6a5420b0625e7fdea13f6d84dedcaff924a5845df5f4db94

Analysis

max time kernel
120s
max time network
122s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
24/01/2024, 14:07

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General

Target

PingCastleAutoUpdater.pdb
Size

23KB
MD5

bcd63f08524588a816486e4b358b932c
SHA1

e5cd01e0fa25f73ee969b272623421c619c2a4ed
SHA256

7ccf1dd7d6e7429908aae9f544444b0a42170b7028c4ff87b0a4f06991b536c6
SHA512

8227687a3e8e09807ef19c053bf478c2b47dbdbf1d2ecc821fd470d109dea226dd49feef1203111da6f543b1e0068e15e3327573b5a50af15a7d03b65b04fe3d
SSDEEP

192:mAz0APjAPVdAPiidIidxid8cOWNu4sAa8Hd0NvPUGQUMmR5wU/JPwa2pemeHBnvU:VAsiHGUOWOAa8HyCj00x

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

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\pdb_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\pdb_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\.pdb	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\.pdb\ = "pdb_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\pdb_auto_file\shell\Read	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_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-1-5-21-3627615824-4061627003-3019543961-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\pdb_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\pdb_auto_file\shell\Read\command	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2712	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2712	AcroRd32.exe
2712	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2360 wrote to memory of 3048	2360	cmd.exe	18
PID 2360 wrote to memory of 3048	2360	cmd.exe	18
PID 2360 wrote to memory of 3048	2360	cmd.exe	18
PID 3048 wrote to memory of 2712	3048	rundll32.exe	30
PID 3048 wrote to memory of 2712	3048	rundll32.exe	30
PID 3048 wrote to memory of 2712	3048	rundll32.exe	30
PID 3048 wrote to memory of 2712	3048	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\PingCastleAutoUpdater.pdb
1⤵
- Suspicious use of WriteProcessMemory
PID:2360
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\PingCastleAutoUpdater.pdb
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:3048
- - 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\PingCastleAutoUpdater.pdb"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2712

Network

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
41aac6ff28aba2130fe77cd1804911bf

SHA1
dc286cd3a02dd9105458ce1a77e3200bd5e6269b

SHA256
7397673c94061dbc4d69bcd799eae6e0f98986372c2061a5a51d49d248891478

SHA512
85f677972637c0ca810b018b54009c02297bb2b42098a4924d5f639cf0f3c7576c06cdfbe63902a3962480dec82880dde098a3ca696b8caf65eb8484f2e37162

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