76faadb7a67b688f58951c537fa98d0f3cbc77ed01fa3fb18d16146d36b7a06b

Analysis

max time kernel
152s
max time network
35s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
08/05/2023, 03:17

Target

content/data/Bitmaps.dat
Size

127.5MB
MD5

c16ddf93ffdce97edae1c9322b5b1087
SHA1

f408b101cd49bba8ac602d1b2b2c9312e2409481
SHA256

4bfe4a2a982475cbb1df745c56a0c94fdba71cb79d7ae54c08876b78c6de8680
SHA512

fc0a9161d49e4aa9c6df4656f7c581d110ba2b145e8aef3c47dbbf73f8eab10d0943bd6ab14b4056dd89232f799772eb1c55030cf3bf1d17aefd99b8d720095f
SSDEEP

3145728:uA279Suf6KDc83ixEPRBCJr5aVXmVUSknvvHUB2o1cNMKe:uThSi6KDc83eiRBCJr5sXmaSIvPUsM5

Score

3^/10

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

System Information Discovery
T1082

Modifies registry class 10 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2647223082-2067913677-935928954-1000_CLASSES\.dat	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2647223082-2067913677-935928954-1000_CLASSES\.dat\ = "dat_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2647223082-2067913677-935928954-1000_CLASSES\dat_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2647223082-2067913677-935928954-1000_CLASSES\dat_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2647223082-2067913677-935928954-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\MuiCache	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2647223082-2067913677-935928954-1000_CLASSES\dat_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2647223082-2067913677-935928954-1000_CLASSES\dat_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2647223082-2067913677-935928954-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2647223082-2067913677-935928954-1000_CLASSES\dat_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2647223082-2067913677-935928954-1000_CLASSES\dat_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2044 wrote to memory of 588	2044	cmd.exe	29
PID 2044 wrote to memory of 588	2044	cmd.exe	29
PID 2044 wrote to memory of 588	2044	cmd.exe	29
PID 588 wrote to memory of 2040	588	rundll32.exe	30
PID 588 wrote to memory of 2040	588	rundll32.exe	30
PID 588 wrote to memory of 2040	588	rundll32.exe	30
PID 588 wrote to memory of 2040	588	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\content\data\Bitmaps.dat
1⤵
- Suspicious use of WriteProcessMemory
PID:2044
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\content\data\Bitmaps.dat
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:588
- - 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\content\data\Bitmaps.dat"
    3⤵
    - Suspicious use of SetWindowsHookEx
    PID:2040

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact