8fb5a12217d3b240cda1923f3acf4ed9d52778ab0bc5c0df6d61d5a0af34c55f

Analysis

max time kernel
148s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
30/12/2023, 11:38

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General

Target

1755b450bb353a34a2d3418213a77ffe.pdf
Size

97KB
MD5

1755b450bb353a34a2d3418213a77ffe
SHA1

40c4cd1c25b2143cb2a43987ee8b912ddc8fd797
SHA256

8fb5a12217d3b240cda1923f3acf4ed9d52778ab0bc5c0df6d61d5a0af34c55f
SHA512

33ebaf2651ea48ea3c122fb04750815d6ecf52c821fd9e3080a1a571451d3b9215bb6ffa9c017bf3e4b473ee8e7c7827f20c20e34fd2357337eb851f3ee83eaa
SSDEEP

3072:H7U4DHjDyGBKrssbKfpw0bb5xC/rFq+FzZlrrn:bFHJKrKfpwcbD6rFJ

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-1-5-21-3803511929-1339359695-2191195476-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
4364	AcroRd32.exe
4364	AcroRd32.exe
4364	AcroRd32.exe
4364	AcroRd32.exe
4364	AcroRd32.exe
4364	AcroRd32.exe
4364	AcroRd32.exe
4364	AcroRd32.exe
4364	AcroRd32.exe
4364	AcroRd32.exe
4364	AcroRd32.exe
4364	AcroRd32.exe
4364	AcroRd32.exe
4364	AcroRd32.exe
4364	AcroRd32.exe
4364	AcroRd32.exe
4364	AcroRd32.exe
4364	AcroRd32.exe
4364	AcroRd32.exe
4364	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4364	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
4364	AcroRd32.exe
4364	AcroRd32.exe
4364	AcroRd32.exe
4364	AcroRd32.exe
4364	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4364 wrote to memory of 6076	4364	AcroRd32.exe	96
PID 4364 wrote to memory of 6076	4364	AcroRd32.exe	96
PID 4364 wrote to memory of 6076	4364	AcroRd32.exe	96
PID 6076 wrote to memory of 4848	6076	RdrCEF.exe	97
PID 6076 wrote to memory of 4848	6076	RdrCEF.exe	97
PID 6076 wrote to memory of 4848	6076	RdrCEF.exe	97
PID 6076 wrote to memory of 4848	6076	RdrCEF.exe	97
PID 6076 wrote to memory of 4848	6076	RdrCEF.exe	97
PID 6076 wrote to memory of 4848	6076	RdrCEF.exe	97
PID 6076 wrote to memory of 4848	6076	RdrCEF.exe	97
PID 6076 wrote to memory of 4848	6076	RdrCEF.exe	97
PID 6076 wrote to memory of 4848	6076	RdrCEF.exe	97
PID 6076 wrote to memory of 4848	6076	RdrCEF.exe	97
PID 6076 wrote to memory of 4848	6076	RdrCEF.exe	97
PID 6076 wrote to memory of 4848	6076	RdrCEF.exe	97
PID 6076 wrote to memory of 4848	6076	RdrCEF.exe	97
PID 6076 wrote to memory of 4848	6076	RdrCEF.exe	97
PID 6076 wrote to memory of 4848	6076	RdrCEF.exe	97
PID 6076 wrote to memory of 4848	6076	RdrCEF.exe	97
PID 6076 wrote to memory of 4848	6076	RdrCEF.exe	97
PID 6076 wrote to memory of 4848	6076	RdrCEF.exe	97
PID 6076 wrote to memory of 4848	6076	RdrCEF.exe	97
PID 6076 wrote to memory of 4848	6076	RdrCEF.exe	97
PID 6076 wrote to memory of 4848	6076	RdrCEF.exe	97
PID 6076 wrote to memory of 4848	6076	RdrCEF.exe	97
PID 6076 wrote to memory of 4848	6076	RdrCEF.exe	97
PID 6076 wrote to memory of 4848	6076	RdrCEF.exe	97
PID 6076 wrote to memory of 4848	6076	RdrCEF.exe	97
PID 6076 wrote to memory of 4848	6076	RdrCEF.exe	97
PID 6076 wrote to memory of 4848	6076	RdrCEF.exe	97
PID 6076 wrote to memory of 4848	6076	RdrCEF.exe	97
PID 6076 wrote to memory of 4848	6076	RdrCEF.exe	97
PID 6076 wrote to memory of 4848	6076	RdrCEF.exe	97
PID 6076 wrote to memory of 4848	6076	RdrCEF.exe	97
PID 6076 wrote to memory of 4848	6076	RdrCEF.exe	97
PID 6076 wrote to memory of 4848	6076	RdrCEF.exe	97
PID 6076 wrote to memory of 4848	6076	RdrCEF.exe	97
PID 6076 wrote to memory of 4848	6076	RdrCEF.exe	97
PID 6076 wrote to memory of 4848	6076	RdrCEF.exe	97
PID 6076 wrote to memory of 4848	6076	RdrCEF.exe	97
PID 6076 wrote to memory of 4848	6076	RdrCEF.exe	97
PID 6076 wrote to memory of 4848	6076	RdrCEF.exe	97
PID 6076 wrote to memory of 4848	6076	RdrCEF.exe	97
PID 6076 wrote to memory of 4848	6076	RdrCEF.exe	97
PID 6076 wrote to memory of 5368	6076	RdrCEF.exe	98
PID 6076 wrote to memory of 5368	6076	RdrCEF.exe	98
PID 6076 wrote to memory of 5368	6076	RdrCEF.exe	98
PID 6076 wrote to memory of 5368	6076	RdrCEF.exe	98
PID 6076 wrote to memory of 5368	6076	RdrCEF.exe	98
PID 6076 wrote to memory of 5368	6076	RdrCEF.exe	98
PID 6076 wrote to memory of 5368	6076	RdrCEF.exe	98
PID 6076 wrote to memory of 5368	6076	RdrCEF.exe	98
PID 6076 wrote to memory of 5368	6076	RdrCEF.exe	98
PID 6076 wrote to memory of 5368	6076	RdrCEF.exe	98
PID 6076 wrote to memory of 5368	6076	RdrCEF.exe	98
PID 6076 wrote to memory of 5368	6076	RdrCEF.exe	98
PID 6076 wrote to memory of 5368	6076	RdrCEF.exe	98
PID 6076 wrote to memory of 5368	6076	RdrCEF.exe	98
PID 6076 wrote to memory of 5368	6076	RdrCEF.exe	98
PID 6076 wrote to memory of 5368	6076	RdrCEF.exe	98
PID 6076 wrote to memory of 5368	6076	RdrCEF.exe	98
PID 6076 wrote to memory of 5368	6076	RdrCEF.exe	98
PID 6076 wrote to memory of 5368	6076	RdrCEF.exe	98
PID 6076 wrote to memory of 5368	6076	RdrCEF.exe	98

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\1755b450bb353a34a2d3418213a77ffe.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:4364
- 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:6076
- - 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=DBD6471677D0557EB1966B4263A17B62 --mojo-platform-channel-handle=1740 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4848
- - 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=AF14786362A98124DEC9D29E0DB20B24 --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=AF14786362A98124DEC9D29E0DB20B24 --renderer-client-id=2 --mojo-platform-channel-handle=1752 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:5368
- - 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=1D74AF6CEB12DA7B360A9494FE3817D0 --mojo-platform-channel-handle=2160 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2856
- - 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=6401A60AA2F3393FE7378112145D68D4 --mojo-platform-channel-handle=2328 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:8
- - 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=8259501B533F7AC28B52717F57E02F8E --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=8259501B533F7AC28B52717F57E02F8E --renderer-client-id=6 --mojo-platform-channel-handle=2252 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:3180
- - 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=F91A8137C8E4DFBBD15A86CA4FDF29B2 --mojo-platform-channel-handle=2192 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4360

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:5616

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
35dbf75a380a0209ab3f827e3ea9c4de

SHA1
b06c66bc3c645bab809dd25db5be8fb658461396

SHA256
c9dfc9fd0f1ae2d4cd1c9dc0b9d64c13e940ad65dcfed1bab30a2bd48976154d

SHA512
d177c7f97144a003ade1eaa1f6b29b8ed0b04681b6be09d44ec6bdc1df99df21f803521be9f9ca1e2e41a37518a99089ffe9d90d2971f8fb338e3faa0108f1e1

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