1098b3cf6685a7e530c166b15131d9e81d0e1a831bead3de4c50da7d7a19f081

Analysis

max time kernel
144s
max time network
157s
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, 03:56

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General

Target

2725ad056fd23f72609500f6219f3084.pdf
Size

86KB
MD5

2725ad056fd23f72609500f6219f3084
SHA1

fbe3cd6c14595cfb369a93d33570a36019045eb0
SHA256

1098b3cf6685a7e530c166b15131d9e81d0e1a831bead3de4c50da7d7a19f081
SHA512

a8c857fe0bb7e0e89420e336696dce673ecf50191d6100042dafbf5d8d57d9ff4fdb7010cac37e9ca06f9f8405b0595b8e565ef6a27c66ff4f7d533e45c9df4e
SSDEEP

1536:JSVN2FEKjbW+iE43QaZoH3I/5KYF419wTZWrqrW9oDh/4WOaf1W8pO+yv2:44y+iv3QaiH3K5KYy1QAsWeDZ4AE+Z

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-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
4824	AcroRd32.exe
4824	AcroRd32.exe
4824	AcroRd32.exe
4824	AcroRd32.exe
4824	AcroRd32.exe
4824	AcroRd32.exe
4824	AcroRd32.exe
4824	AcroRd32.exe
4824	AcroRd32.exe
4824	AcroRd32.exe
4824	AcroRd32.exe
4824	AcroRd32.exe
4824	AcroRd32.exe
4824	AcroRd32.exe
4824	AcroRd32.exe
4824	AcroRd32.exe
4824	AcroRd32.exe
4824	AcroRd32.exe
4824	AcroRd32.exe
4824	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4824	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
4824	AcroRd32.exe
4824	AcroRd32.exe
4824	AcroRd32.exe
4824	AcroRd32.exe
4824	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4824 wrote to memory of 4688	4824	AcroRd32.exe	93
PID 4824 wrote to memory of 4688	4824	AcroRd32.exe	93
PID 4824 wrote to memory of 4688	4824	AcroRd32.exe	93
PID 4824 wrote to memory of 224	4824	AcroRd32.exe	99
PID 4824 wrote to memory of 224	4824	AcroRd32.exe	99
PID 4824 wrote to memory of 224	4824	AcroRd32.exe	99
PID 4688 wrote to memory of 4636	4688	RdrCEF.exe	100
PID 4688 wrote to memory of 4636	4688	RdrCEF.exe	100
PID 4688 wrote to memory of 4636	4688	RdrCEF.exe	100
PID 4688 wrote to memory of 4636	4688	RdrCEF.exe	100
PID 4688 wrote to memory of 4636	4688	RdrCEF.exe	100
PID 4688 wrote to memory of 4636	4688	RdrCEF.exe	100
PID 4688 wrote to memory of 4636	4688	RdrCEF.exe	100
PID 4688 wrote to memory of 4636	4688	RdrCEF.exe	100
PID 4688 wrote to memory of 4636	4688	RdrCEF.exe	100
PID 4688 wrote to memory of 4636	4688	RdrCEF.exe	100
PID 4688 wrote to memory of 4636	4688	RdrCEF.exe	100
PID 4688 wrote to memory of 4636	4688	RdrCEF.exe	100
PID 4688 wrote to memory of 4636	4688	RdrCEF.exe	100
PID 4688 wrote to memory of 4636	4688	RdrCEF.exe	100
PID 4688 wrote to memory of 4636	4688	RdrCEF.exe	100
PID 4688 wrote to memory of 4636	4688	RdrCEF.exe	100
PID 4688 wrote to memory of 4636	4688	RdrCEF.exe	100
PID 4688 wrote to memory of 4636	4688	RdrCEF.exe	100
PID 4688 wrote to memory of 4636	4688	RdrCEF.exe	100
PID 4688 wrote to memory of 4636	4688	RdrCEF.exe	100
PID 4688 wrote to memory of 4636	4688	RdrCEF.exe	100
PID 4688 wrote to memory of 4636	4688	RdrCEF.exe	100
PID 4688 wrote to memory of 4636	4688	RdrCEF.exe	100
PID 4688 wrote to memory of 4636	4688	RdrCEF.exe	100
PID 4688 wrote to memory of 4636	4688	RdrCEF.exe	100
PID 4688 wrote to memory of 4636	4688	RdrCEF.exe	100
PID 4688 wrote to memory of 4636	4688	RdrCEF.exe	100
PID 4688 wrote to memory of 4636	4688	RdrCEF.exe	100
PID 4688 wrote to memory of 4636	4688	RdrCEF.exe	100
PID 4688 wrote to memory of 4636	4688	RdrCEF.exe	100
PID 4688 wrote to memory of 4636	4688	RdrCEF.exe	100
PID 4688 wrote to memory of 4636	4688	RdrCEF.exe	100
PID 4688 wrote to memory of 4636	4688	RdrCEF.exe	100
PID 4688 wrote to memory of 4636	4688	RdrCEF.exe	100
PID 4688 wrote to memory of 4636	4688	RdrCEF.exe	100
PID 4688 wrote to memory of 4636	4688	RdrCEF.exe	100
PID 4688 wrote to memory of 4636	4688	RdrCEF.exe	100
PID 4688 wrote to memory of 4636	4688	RdrCEF.exe	100
PID 4688 wrote to memory of 4636	4688	RdrCEF.exe	100
PID 4688 wrote to memory of 4636	4688	RdrCEF.exe	100
PID 4688 wrote to memory of 4636	4688	RdrCEF.exe	100
PID 4688 wrote to memory of 4920	4688	RdrCEF.exe	101
PID 4688 wrote to memory of 4920	4688	RdrCEF.exe	101
PID 4688 wrote to memory of 4920	4688	RdrCEF.exe	101
PID 4688 wrote to memory of 4920	4688	RdrCEF.exe	101
PID 4688 wrote to memory of 4920	4688	RdrCEF.exe	101
PID 4688 wrote to memory of 4920	4688	RdrCEF.exe	101
PID 4688 wrote to memory of 4920	4688	RdrCEF.exe	101
PID 4688 wrote to memory of 4920	4688	RdrCEF.exe	101
PID 4688 wrote to memory of 4920	4688	RdrCEF.exe	101
PID 4688 wrote to memory of 4920	4688	RdrCEF.exe	101
PID 4688 wrote to memory of 4920	4688	RdrCEF.exe	101
PID 4688 wrote to memory of 4920	4688	RdrCEF.exe	101
PID 4688 wrote to memory of 4920	4688	RdrCEF.exe	101
PID 4688 wrote to memory of 4920	4688	RdrCEF.exe	101
PID 4688 wrote to memory of 4920	4688	RdrCEF.exe	101
PID 4688 wrote to memory of 4920	4688	RdrCEF.exe	101
PID 4688 wrote to memory of 4920	4688	RdrCEF.exe	101

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\2725ad056fd23f72609500f6219f3084.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:4824
- 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:4688
- - 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=0C6147177A972425CAA45003E3FEE5C2 --mojo-platform-channel-handle=1740 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4636
- - 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=4175411238F55F0233A44C515E416164 --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=4175411238F55F0233A44C515E416164 --renderer-client-id=2 --mojo-platform-channel-handle=1760 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4920
- - 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=3BC8D4D91B017E767CB7446A444E63A6 --mojo-platform-channel-handle=2312 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:684
- - 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=3323AB7ADB4106F58DA8D6FF8A2D48BE --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=3323AB7ADB4106F58DA8D6FF8A2D48BE --renderer-client-id=5 --mojo-platform-channel-handle=1884 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4400
- - 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=16C95634A1DF2770FEE4E8B0983CDC69 --mojo-platform-channel-handle=2596 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3080
- - 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=9D63959CBD59C3094896DCBABFCA0A94 --mojo-platform-channel-handle=2780 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1876
- 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:224

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:4288

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
819d254052c0410e694426453782c28e

SHA1
f7cf5bbef5c9c73e1372603e7c20bd4ab424cea3

SHA256
724e3305c281d2c80ffa989fc7f13850800361081e2410046a62173720029132

SHA512
488e91ca8e17a95c4f9dd8df5eee243ef78fdab9507c05f172c896babd1a501d3fbfd302397c83d277c33e4c6a3346e3c1e4fa636a9eeb4faa9096b1e7ca14db

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