3b4bba49f74bd57cf5660c94014ffef658025f81e92855e021200738df26ecf4

Analysis

max time kernel
157s
max time network
164s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
31/12/2023, 23:22

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

3b523221651de6eb9bbb443d1fc2b836.pdf
Size

91KB
MD5

3b523221651de6eb9bbb443d1fc2b836
SHA1

b3fb57bf790a9eecf949975ad452298b5f06872f
SHA256

3b4bba49f74bd57cf5660c94014ffef658025f81e92855e021200738df26ecf4
SHA512

35baffd63f82f2c2061490c496461961a182990e328dbe3f82dde4a5c51022995da8afcbec384dfa3270a69bee1ad6d61a446029d3288be246c8e63ba0fb92fa
SSDEEP

1536:uMHvS9UYuzKPEbI6VSNGkBC1ZOOF+RhjwCTmxFwB69fzyVWyczfT/LLv2vW8pO7u:to49bJuoHOOF+fwAmxhROqfT/Lz2i7u

Score

1^/10

Malware Config

Signatures

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	AcroRd32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	AcroRd32.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
904	AcroRd32.exe
904	AcroRd32.exe
904	AcroRd32.exe
904	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
904	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
904	AcroRd32.exe
904	AcroRd32.exe
904	AcroRd32.exe
904	AcroRd32.exe
904	AcroRd32.exe

Suspicious use of WriteProcessMemory 59 IoCs

description	pid	Process	procid_target
PID 904 wrote to memory of 404	904	AcroRd32.exe	105
PID 904 wrote to memory of 404	904	AcroRd32.exe	105
PID 904 wrote to memory of 404	904	AcroRd32.exe	105
PID 904 wrote to memory of 4860	904	AcroRd32.exe	106
PID 904 wrote to memory of 4860	904	AcroRd32.exe	106
PID 904 wrote to memory of 4860	904	AcroRd32.exe	106
PID 904 wrote to memory of 2716	904	AcroRd32.exe	107
PID 904 wrote to memory of 2716	904	AcroRd32.exe	107
PID 904 wrote to memory of 2716	904	AcroRd32.exe	107
PID 904 wrote to memory of 2736	904	AcroRd32.exe	108
PID 904 wrote to memory of 2736	904	AcroRd32.exe	108
PID 904 wrote to memory of 2736	904	AcroRd32.exe	108
PID 904 wrote to memory of 2288	904	AcroRd32.exe	109
PID 904 wrote to memory of 2288	904	AcroRd32.exe	109
PID 904 wrote to memory of 2288	904	AcroRd32.exe	109
PID 904 wrote to memory of 2292	904	AcroRd32.exe	113
PID 904 wrote to memory of 2292	904	AcroRd32.exe	113
PID 904 wrote to memory of 2292	904	AcroRd32.exe	113
PID 2288 wrote to memory of 5036	2288	RdrCEF.exe	116
PID 2288 wrote to memory of 5036	2288	RdrCEF.exe	116
PID 2288 wrote to memory of 5036	2288	RdrCEF.exe	116
PID 2288 wrote to memory of 5036	2288	RdrCEF.exe	116
PID 2288 wrote to memory of 5036	2288	RdrCEF.exe	116
PID 2288 wrote to memory of 5036	2288	RdrCEF.exe	116
PID 2288 wrote to memory of 5036	2288	RdrCEF.exe	116
PID 2288 wrote to memory of 5036	2288	RdrCEF.exe	116
PID 2288 wrote to memory of 5036	2288	RdrCEF.exe	116
PID 2288 wrote to memory of 5036	2288	RdrCEF.exe	116
PID 2288 wrote to memory of 5036	2288	RdrCEF.exe	116
PID 2288 wrote to memory of 5036	2288	RdrCEF.exe	116
PID 2288 wrote to memory of 5036	2288	RdrCEF.exe	116
PID 2288 wrote to memory of 5036	2288	RdrCEF.exe	116
PID 2288 wrote to memory of 5036	2288	RdrCEF.exe	116
PID 2288 wrote to memory of 5036	2288	RdrCEF.exe	116
PID 2288 wrote to memory of 5036	2288	RdrCEF.exe	116
PID 2288 wrote to memory of 5036	2288	RdrCEF.exe	116
PID 2288 wrote to memory of 5036	2288	RdrCEF.exe	116
PID 2288 wrote to memory of 5036	2288	RdrCEF.exe	116
PID 2288 wrote to memory of 5036	2288	RdrCEF.exe	116
PID 2288 wrote to memory of 5036	2288	RdrCEF.exe	116
PID 2288 wrote to memory of 5036	2288	RdrCEF.exe	116
PID 2288 wrote to memory of 5036	2288	RdrCEF.exe	116
PID 2288 wrote to memory of 5036	2288	RdrCEF.exe	116
PID 2288 wrote to memory of 5036	2288	RdrCEF.exe	116
PID 2288 wrote to memory of 5036	2288	RdrCEF.exe	116
PID 2288 wrote to memory of 5036	2288	RdrCEF.exe	116
PID 2288 wrote to memory of 5036	2288	RdrCEF.exe	116
PID 2288 wrote to memory of 5036	2288	RdrCEF.exe	116
PID 2288 wrote to memory of 5036	2288	RdrCEF.exe	116
PID 2288 wrote to memory of 5036	2288	RdrCEF.exe	116
PID 2288 wrote to memory of 5036	2288	RdrCEF.exe	116
PID 2288 wrote to memory of 5036	2288	RdrCEF.exe	116
PID 2288 wrote to memory of 5036	2288	RdrCEF.exe	116
PID 2288 wrote to memory of 5036	2288	RdrCEF.exe	116
PID 2288 wrote to memory of 5036	2288	RdrCEF.exe	116
PID 2288 wrote to memory of 5036	2288	RdrCEF.exe	116
PID 2288 wrote to memory of 5036	2288	RdrCEF.exe	116
PID 2288 wrote to memory of 5036	2288	RdrCEF.exe	116
PID 2288 wrote to memory of 5036	2288	RdrCEF.exe	116

C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe
"C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Local\Temp\3b523221651de6eb9bbb443d1fc2b836.pdf"
1⤵
- Checks processor information in registry
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:904
- C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
  "C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe" --backgroundcolor=16514043
  2⤵
  PID:404
- C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
  "C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe" --backgroundcolor=16514043
  2⤵
  PID:4860
- C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
  "C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe" --backgroundcolor=16514043
  2⤵
  PID:2716
- C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
  "C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe" --backgroundcolor=16514043
  2⤵
  PID:2736
- C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
  "C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe" --backgroundcolor=16514043
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2288
- - C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
    "C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe" --type=gpu-process --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --gpu-preferences=GAAAAAAAAAAAB4AAAQAAAAAAAAAAAGAA --use-gl=swiftshader-webgl --gpu-vendor-id=0x1234 --gpu-device-id=0x1111 --gpu-driver-vendor="Google Inc." --gpu-driver-version=3.3.0.2 --gpu-driver-date=2017/04/07 --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --service-request-channel-token=3C611010420032685413C530950124E4 --mojo-platform-channel-handle=1732 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:5036
- C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
  "C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe" --backgroundcolor=16514043
  2⤵
  PID:2292

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\ReaderMessages

Filesize
36KB

MD5
b30d3becc8731792523d599d949e63f5

SHA1
19350257e42d7aee17fb3bf139a9d3adb330fad4

SHA256
b1b77e96279ead2b460de3de70e2ea4f5ad1b853598a4e27a5caf3f1a32cc4f3

SHA512
523f54895fb07f62b9a5f72c8b62e83d4d9506bda57b183818615f6eb7286e3b9c5a50409bc5c5164867c3ccdeae88aa395ecca6bc7e36d991552f857510792e

Download Submit
C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\ReaderMessages

Filesize
56KB

MD5
752a1f26b18748311b691c7d8fc20633

SHA1
c1f8e83eebc1cc1e9b88c773338eb09ff82ab862

SHA256
111dac2948e4cecb10b0d2e10d8afaa663d78d643826b592d6414a1fd77cc131

SHA512
a2f5f262faf2c3e9756da94b2c47787ce3a9391b5bd53581578aa9a764449e114836704d6dec4aadc097fed4c818831baa11affa1eb25be2bfad9349bb090fe5

Download Submit