25f063885aecb33f84a8b62007fc5e0d014292a5c83c07e8c05f8952456594a0

Analysis

max time kernel
148s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
28-02-2024 15:52

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General

Target

ac4327ebd5752b9ed6b6b97ef33fcfcd.pdf
Size

85KB
MD5

ac4327ebd5752b9ed6b6b97ef33fcfcd
SHA1

b09d4f0e9ee29af61d1a8652251b1b143389ddee
SHA256

25f063885aecb33f84a8b62007fc5e0d014292a5c83c07e8c05f8952456594a0
SHA512

af94b2cffe2735a05d9ea082080420ff8c9cec976021cfab2e1c60c3c6a415a3f284bdf9bfe4792bb076e2e569aa6c43b6da49675833f5dd05943ee97843f891
SSDEEP

1536:I5onA3j14xf94oyNrgKGNGio/uRzMB9nJrJo9Fk/KQHgGraDwBVX96f:OjqxlAgL4qRzMPnAk/pgGraEVXc

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

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-557049126-2506969350-2798870634-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
3640	AcroRd32.exe
3640	AcroRd32.exe
3640	AcroRd32.exe
3640	AcroRd32.exe
3640	AcroRd32.exe
3640	AcroRd32.exe
3640	AcroRd32.exe
3640	AcroRd32.exe
3640	AcroRd32.exe
3640	AcroRd32.exe
3640	AcroRd32.exe
3640	AcroRd32.exe
3640	AcroRd32.exe
3640	AcroRd32.exe
3640	AcroRd32.exe
3640	AcroRd32.exe
3640	AcroRd32.exe
3640	AcroRd32.exe
3640	AcroRd32.exe
3640	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3640	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
3640	AcroRd32.exe
3640	AcroRd32.exe
3640	AcroRd32.exe
3640	AcroRd32.exe
3640	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 3640 wrote to memory of 64	3640	AcroRd32.exe	91
PID 3640 wrote to memory of 64	3640	AcroRd32.exe	91
PID 3640 wrote to memory of 64	3640	AcroRd32.exe	91
PID 64 wrote to memory of 3956	64	RdrCEF.exe	92
PID 64 wrote to memory of 3956	64	RdrCEF.exe	92
PID 64 wrote to memory of 3956	64	RdrCEF.exe	92
PID 64 wrote to memory of 3956	64	RdrCEF.exe	92
PID 64 wrote to memory of 3956	64	RdrCEF.exe	92
PID 64 wrote to memory of 3956	64	RdrCEF.exe	92
PID 64 wrote to memory of 3956	64	RdrCEF.exe	92
PID 64 wrote to memory of 3956	64	RdrCEF.exe	92
PID 64 wrote to memory of 3956	64	RdrCEF.exe	92
PID 64 wrote to memory of 3956	64	RdrCEF.exe	92
PID 64 wrote to memory of 3956	64	RdrCEF.exe	92
PID 64 wrote to memory of 3956	64	RdrCEF.exe	92
PID 64 wrote to memory of 3956	64	RdrCEF.exe	92
PID 64 wrote to memory of 3956	64	RdrCEF.exe	92
PID 64 wrote to memory of 3956	64	RdrCEF.exe	92
PID 64 wrote to memory of 3956	64	RdrCEF.exe	92
PID 64 wrote to memory of 3956	64	RdrCEF.exe	92
PID 64 wrote to memory of 3956	64	RdrCEF.exe	92
PID 64 wrote to memory of 3956	64	RdrCEF.exe	92
PID 64 wrote to memory of 3956	64	RdrCEF.exe	92
PID 64 wrote to memory of 3956	64	RdrCEF.exe	92
PID 64 wrote to memory of 3956	64	RdrCEF.exe	92
PID 64 wrote to memory of 3956	64	RdrCEF.exe	92
PID 64 wrote to memory of 3956	64	RdrCEF.exe	92
PID 64 wrote to memory of 3956	64	RdrCEF.exe	92
PID 64 wrote to memory of 3956	64	RdrCEF.exe	92
PID 64 wrote to memory of 3956	64	RdrCEF.exe	92
PID 64 wrote to memory of 3956	64	RdrCEF.exe	92
PID 64 wrote to memory of 3956	64	RdrCEF.exe	92
PID 64 wrote to memory of 3956	64	RdrCEF.exe	92
PID 64 wrote to memory of 3956	64	RdrCEF.exe	92
PID 64 wrote to memory of 3956	64	RdrCEF.exe	92
PID 64 wrote to memory of 3956	64	RdrCEF.exe	92
PID 64 wrote to memory of 3956	64	RdrCEF.exe	92
PID 64 wrote to memory of 3956	64	RdrCEF.exe	92
PID 64 wrote to memory of 3956	64	RdrCEF.exe	92
PID 64 wrote to memory of 3956	64	RdrCEF.exe	92
PID 64 wrote to memory of 3956	64	RdrCEF.exe	92
PID 64 wrote to memory of 3956	64	RdrCEF.exe	92
PID 64 wrote to memory of 3956	64	RdrCEF.exe	92
PID 64 wrote to memory of 3956	64	RdrCEF.exe	92
PID 64 wrote to memory of 804	64	RdrCEF.exe	93
PID 64 wrote to memory of 804	64	RdrCEF.exe	93
PID 64 wrote to memory of 804	64	RdrCEF.exe	93
PID 64 wrote to memory of 804	64	RdrCEF.exe	93
PID 64 wrote to memory of 804	64	RdrCEF.exe	93
PID 64 wrote to memory of 804	64	RdrCEF.exe	93
PID 64 wrote to memory of 804	64	RdrCEF.exe	93
PID 64 wrote to memory of 804	64	RdrCEF.exe	93
PID 64 wrote to memory of 804	64	RdrCEF.exe	93
PID 64 wrote to memory of 804	64	RdrCEF.exe	93
PID 64 wrote to memory of 804	64	RdrCEF.exe	93
PID 64 wrote to memory of 804	64	RdrCEF.exe	93
PID 64 wrote to memory of 804	64	RdrCEF.exe	93
PID 64 wrote to memory of 804	64	RdrCEF.exe	93
PID 64 wrote to memory of 804	64	RdrCEF.exe	93
PID 64 wrote to memory of 804	64	RdrCEF.exe	93
PID 64 wrote to memory of 804	64	RdrCEF.exe	93
PID 64 wrote to memory of 804	64	RdrCEF.exe	93
PID 64 wrote to memory of 804	64	RdrCEF.exe	93
PID 64 wrote to memory of 804	64	RdrCEF.exe	93

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\ac4327ebd5752b9ed6b6b97ef33fcfcd.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:3640
- 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:64
- - 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=4C96BB71BDBFD7BE69EAB04D7580E8F0 --mojo-platform-channel-handle=1748 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3956
- - 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=8D29777AFCD01855CAAEFC05D8FDC181 --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=8D29777AFCD01855CAAEFC05D8FDC181 --renderer-client-id=2 --mojo-platform-channel-handle=1776 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:804
- - 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=6104C7980899543E165A7ED1F59338A7 --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=6104C7980899543E165A7ED1F59338A7 --renderer-client-id=4 --mojo-platform-channel-handle=2176 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:856
- - 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=DAB2D147C0BA8293BC7F71A88611EF74 --mojo-platform-channel-handle=2556 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3532
- - 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=153B3B3A54C0CA8582CC9E9DC5DD5B8C --mojo-platform-channel-handle=2684 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2796
- - 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=65558F07ED96CDA916836237C6E0E724 --mojo-platform-channel-handle=2572 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3924

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:2908

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

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Downloads

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

Filesize
64KB

MD5
9dfdf58075df9b5193ebaa1df4a1b89e

SHA1
83bfc6d2f77ee2bf011550994dd855100a619998

SHA256
dde54100e36e62098f32f59ec4ca48d5ed06c390bde6263a72fe3aeb8f9af33c

SHA512
5eec64c61d0f1fbe07c7ba5f6e66e64253a55ee0c2376f473ed4862c8ae18b43ede6b7f099bec58854113030a523812c7d405c96c3875ef5c7635536e2b353a1

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