74909ca72aac651710a99c8a7adfe42588ffa69d2fa0db6369a41fce4f0e08c0

Analysis

max time kernel
313s
max time network
321s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
26/12/2023, 13:11

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General

Target

FS4263.pdf
Size

230KB
MD5

be97ebb89be1a77581991593726a2030
SHA1

1db6fa8258d8c6802d4693797c2cd9e10c6b23de
SHA256

1a70f73e6efe1c057b4aeb822aa0e68b6e449a40820c7b02265eafb8a4a2c54c
SHA512

3f11682b0f81de65a87f82c87cb86f88b34bcc166cb3e9cc284482d55522f60e09e508551ec67a74dca96839fdd1ae85b5306756927ec8301e1f21ac5ade0a08
SSDEEP

6144:pMLIVeJDO7V5XuVot980HwnFFFku1KG+spo58Mwdtd:pMLIgJDyX6KHw11npWFwzd

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-1-5-21-983843758-932321429-1636175382-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
4300	AcroRd32.exe
4300	AcroRd32.exe
4300	AcroRd32.exe
4300	AcroRd32.exe
4300	AcroRd32.exe
4300	AcroRd32.exe
4300	AcroRd32.exe
4300	AcroRd32.exe
4300	AcroRd32.exe
4300	AcroRd32.exe
4300	AcroRd32.exe
4300	AcroRd32.exe
4300	AcroRd32.exe
4300	AcroRd32.exe
4300	AcroRd32.exe
4300	AcroRd32.exe
4300	AcroRd32.exe
4300	AcroRd32.exe
4300	AcroRd32.exe
4300	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4300	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
4300	AcroRd32.exe
4300	AcroRd32.exe
4300	AcroRd32.exe
4300	AcroRd32.exe
4300	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4300 wrote to memory of 2272	4300	AcroRd32.exe	95
PID 4300 wrote to memory of 2272	4300	AcroRd32.exe	95
PID 4300 wrote to memory of 2272	4300	AcroRd32.exe	95
PID 2272 wrote to memory of 4820	2272	RdrCEF.exe	98
PID 2272 wrote to memory of 4820	2272	RdrCEF.exe	98
PID 2272 wrote to memory of 4820	2272	RdrCEF.exe	98
PID 2272 wrote to memory of 4820	2272	RdrCEF.exe	98
PID 2272 wrote to memory of 4820	2272	RdrCEF.exe	98
PID 2272 wrote to memory of 4820	2272	RdrCEF.exe	98
PID 2272 wrote to memory of 4820	2272	RdrCEF.exe	98
PID 2272 wrote to memory of 4820	2272	RdrCEF.exe	98
PID 2272 wrote to memory of 4820	2272	RdrCEF.exe	98
PID 2272 wrote to memory of 4820	2272	RdrCEF.exe	98
PID 2272 wrote to memory of 4820	2272	RdrCEF.exe	98
PID 2272 wrote to memory of 4820	2272	RdrCEF.exe	98
PID 2272 wrote to memory of 4820	2272	RdrCEF.exe	98
PID 2272 wrote to memory of 4820	2272	RdrCEF.exe	98
PID 2272 wrote to memory of 4820	2272	RdrCEF.exe	98
PID 2272 wrote to memory of 4820	2272	RdrCEF.exe	98
PID 2272 wrote to memory of 4820	2272	RdrCEF.exe	98
PID 2272 wrote to memory of 4820	2272	RdrCEF.exe	98
PID 2272 wrote to memory of 4820	2272	RdrCEF.exe	98
PID 2272 wrote to memory of 4820	2272	RdrCEF.exe	98
PID 2272 wrote to memory of 4820	2272	RdrCEF.exe	98
PID 2272 wrote to memory of 4820	2272	RdrCEF.exe	98
PID 2272 wrote to memory of 4820	2272	RdrCEF.exe	98
PID 2272 wrote to memory of 4820	2272	RdrCEF.exe	98
PID 2272 wrote to memory of 4820	2272	RdrCEF.exe	98
PID 2272 wrote to memory of 4820	2272	RdrCEF.exe	98
PID 2272 wrote to memory of 4820	2272	RdrCEF.exe	98
PID 2272 wrote to memory of 4820	2272	RdrCEF.exe	98
PID 2272 wrote to memory of 4820	2272	RdrCEF.exe	98
PID 2272 wrote to memory of 4820	2272	RdrCEF.exe	98
PID 2272 wrote to memory of 4820	2272	RdrCEF.exe	98
PID 2272 wrote to memory of 4820	2272	RdrCEF.exe	98
PID 2272 wrote to memory of 4820	2272	RdrCEF.exe	98
PID 2272 wrote to memory of 4820	2272	RdrCEF.exe	98
PID 2272 wrote to memory of 4820	2272	RdrCEF.exe	98
PID 2272 wrote to memory of 4820	2272	RdrCEF.exe	98
PID 2272 wrote to memory of 4820	2272	RdrCEF.exe	98
PID 2272 wrote to memory of 4820	2272	RdrCEF.exe	98
PID 2272 wrote to memory of 4820	2272	RdrCEF.exe	98
PID 2272 wrote to memory of 4820	2272	RdrCEF.exe	98
PID 2272 wrote to memory of 4820	2272	RdrCEF.exe	98
PID 2272 wrote to memory of 4700	2272	RdrCEF.exe	99
PID 2272 wrote to memory of 4700	2272	RdrCEF.exe	99
PID 2272 wrote to memory of 4700	2272	RdrCEF.exe	99
PID 2272 wrote to memory of 4700	2272	RdrCEF.exe	99
PID 2272 wrote to memory of 4700	2272	RdrCEF.exe	99
PID 2272 wrote to memory of 4700	2272	RdrCEF.exe	99
PID 2272 wrote to memory of 4700	2272	RdrCEF.exe	99
PID 2272 wrote to memory of 4700	2272	RdrCEF.exe	99
PID 2272 wrote to memory of 4700	2272	RdrCEF.exe	99
PID 2272 wrote to memory of 4700	2272	RdrCEF.exe	99
PID 2272 wrote to memory of 4700	2272	RdrCEF.exe	99
PID 2272 wrote to memory of 4700	2272	RdrCEF.exe	99
PID 2272 wrote to memory of 4700	2272	RdrCEF.exe	99
PID 2272 wrote to memory of 4700	2272	RdrCEF.exe	99
PID 2272 wrote to memory of 4700	2272	RdrCEF.exe	99
PID 2272 wrote to memory of 4700	2272	RdrCEF.exe	99
PID 2272 wrote to memory of 4700	2272	RdrCEF.exe	99
PID 2272 wrote to memory of 4700	2272	RdrCEF.exe	99
PID 2272 wrote to memory of 4700	2272	RdrCEF.exe	99
PID 2272 wrote to memory of 4700	2272	RdrCEF.exe	99

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\FS4263.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:4300
- 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:2272
- - 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=27F733792E3F61B8528F92FF43D82D22 --mojo-platform-channel-handle=1736 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4820
- - 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=renderer --disable-browser-side-navigation --disable-gpu-compositing --service-pipe-token=98E90E65F0E5A3FB3D27C59CC7E6903D --lang=en-US --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" --enable-pinch --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --enable-gpu-async-worker-context --content-image-texture-target=0,0,3553;0,1,3553;0,2,3553;0,3,3553;0,4,3553;0,5,3553;0,6,3553;0,7,3553;0,8,3553;0,9,3553;0,10,3553;0,11,3553;0,12,3553;0,13,3553;0,14,3553;0,15,3553;0,16,3553;0,17,3553;0,18,3553;1,0,3553;1,1,3553;1,2,3553;1,3,3553;1,4,3553;1,5,3553;1,6,3553;1,7,3553;1,8,3553;1,9,3553;1,10,3553;1,11,3553;1,12,3553;1,13,3553;1,14,3553;1,15,3553;1,16,3553;1,17,3553;1,18,3553;2,0,3553;2,1,3553;2,2,3553;2,3,3553;2,4,3553;2,5,3553;2,6,3553;2,7,3553;2,8,3553;2,9,3553;2,10,3553;2,11,3553;2,12,3553;2,13,3553;2,14,3553;2,15,3553;2,16,3553;2,17,3553;2,18,3553;3,0,3553;3,1,3553;3,2,3553;3,3,3553;3,4,3553;3,5,3553;3,6,3553;3,7,3553;3,8,3553;3,9,3553;3,10,3553;3,11,3553;3,12,3553;3,13,3553;3,14,3553;3,15,3553;3,16,3553;3,17,3553;3,18,3553;4,0,3553;4,1,3553;4,2,3553;4,3,3553;4,4,3553;4,5,3553;4,6,3553;4,7,3553;4,8,3553;4,9,3553;4,10,3553;4,11,3553;4,12,3553;4,13,3553;4,14,3553;4,15,3553;4,16,3553;4,17,3553;4,18,3553;5,0,3553;5,1,3553;5,2,3553;5,3,3553;5,4,3553;5,5,3553;5,6,3553;5,7,3553;5,8,3553;5,9,3553;5,10,3553;5,11,3553;5,12,3553;5,13,3553;5,14,3553;5,15,3553;5,16,3553;5,17,3553;5,18,3553;6,0,3553;6,1,3553;6,2,3553;6,3,3553;6,4,3553;6,5,3553;6,6,3553;6,7,3553;6,8,3553;6,9,3553;6,10,3553;6,11,3553;6,12,3553;6,13,3553;6,14,3553;6,15,3553;6,16,3553;6,17,3553;6,18,3553 --disable-accelerated-video-decode --service-request-channel-token=98E90E65F0E5A3FB3D27C59CC7E6903D --renderer-client-id=2 --mojo-platform-channel-handle=1748 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4700
- - 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=renderer --disable-browser-side-navigation --disable-gpu-compositing --service-pipe-token=EF645CE7CA7FA0ACC8695C9C8BED1982 --lang=en-US --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" --enable-pinch --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --enable-gpu-async-worker-context --content-image-texture-target=0,0,3553;0,1,3553;0,2,3553;0,3,3553;0,4,3553;0,5,3553;0,6,3553;0,7,3553;0,8,3553;0,9,3553;0,10,3553;0,11,3553;0,12,3553;0,13,3553;0,14,3553;0,15,3553;0,16,3553;0,17,3553;0,18,3553;1,0,3553;1,1,3553;1,2,3553;1,3,3553;1,4,3553;1,5,3553;1,6,3553;1,7,3553;1,8,3553;1,9,3553;1,10,3553;1,11,3553;1,12,3553;1,13,3553;1,14,3553;1,15,3553;1,16,3553;1,17,3553;1,18,3553;2,0,3553;2,1,3553;2,2,3553;2,3,3553;2,4,3553;2,5,3553;2,6,3553;2,7,3553;2,8,3553;2,9,3553;2,10,3553;2,11,3553;2,12,3553;2,13,3553;2,14,3553;2,15,3553;2,16,3553;2,17,3553;2,18,3553;3,0,3553;3,1,3553;3,2,3553;3,3,3553;3,4,3553;3,5,3553;3,6,3553;3,7,3553;3,8,3553;3,9,3553;3,10,3553;3,11,3553;3,12,3553;3,13,3553;3,14,3553;3,15,3553;3,16,3553;3,17,3553;3,18,3553;4,0,3553;4,1,3553;4,2,3553;4,3,3553;4,4,3553;4,5,3553;4,6,3553;4,7,3553;4,8,3553;4,9,3553;4,10,3553;4,11,3553;4,12,3553;4,13,3553;4,14,3553;4,15,3553;4,16,3553;4,17,3553;4,18,3553;5,0,3553;5,1,3553;5,2,3553;5,3,3553;5,4,3553;5,5,3553;5,6,3553;5,7,3553;5,8,3553;5,9,3553;5,10,3553;5,11,3553;5,12,3553;5,13,3553;5,14,3553;5,15,3553;5,16,3553;5,17,3553;5,18,3553;6,0,3553;6,1,3553;6,2,3553;6,3,3553;6,4,3553;6,5,3553;6,6,3553;6,7,3553;6,8,3553;6,9,3553;6,10,3553;6,11,3553;6,12,3553;6,13,3553;6,14,3553;6,15,3553;6,16,3553;6,17,3553;6,18,3553 --disable-accelerated-video-decode --service-request-channel-token=EF645CE7CA7FA0ACC8695C9C8BED1982 --renderer-client-id=4 --mojo-platform-channel-handle=2316 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4836
- - 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=40A784DF7CEACA4D43D298176496F80D --mojo-platform-channel-handle=2436 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:652
- - 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=2F77B0BB65F5D0C82B7CB5835F92E83D --mojo-platform-channel-handle=2576 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1708
- - 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=C9547CFC457A772835C7E3075E0FDF9F --mojo-platform-channel-handle=2680 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2940

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:1236

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
64KB

MD5
e56d61d3eadea3fadf1c9323e64b5506

SHA1
4b38b6263e708a0f6401e60e9f1179bdb2b5cadb

SHA256
eef3a27346e2af0cef1bf34a3df69c611f95ccd322183ec127741994ee11a966

SHA512
2291ae52ee4ed2e5f0c8befa1844e8e0832d6e4870c79d1442e5abf151b476e1f4ee96eb56de553fa89ff9846a6481b787b74f61b3ef280ec135599a418fdda4

Download Submit
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