6ec20b583d4e753ca2b304647bfa8dd492a1eb79aa5d68a8d55c205f1e66a717

Analysis

max time kernel
141s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20231025-en
resource tags

arch:x64arch:x86image:win10v2004-20231025-enlocale:en-usos:windows10-2004-x64system
submitted
07/11/2023, 14:38

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General

Target

Bios_Utilities/AFU/BIOS Flash Guide.pdf
Size

207KB
MD5

708d5917df9e776b915aad1fad664e82
SHA1

fa57d093790aa7e5edacd65041e85d9f9dcc06c1
SHA256

fb30ff7ffd8003656dda3c152a12a1b11784500bc589fc173be30bafbe981e71
SHA512

37e72ab30e6605561f461da62cc9928c72dbec9adb641c359d89ff575b3ab21eb865cc23810340bb317702a8a9014001b39ed0733c8198e3aeb3960c169d391e
SSDEEP

6144:T2qTec4Mxy2jyzgSAvpr+JWXC8hQpNEoYsP:iiec4MIiSQprtS8hQooP

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-1-5-21-177160434-2093019976-369403398-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
3812	AcroRd32.exe
3812	AcroRd32.exe
3812	AcroRd32.exe
3812	AcroRd32.exe
3812	AcroRd32.exe
3812	AcroRd32.exe
3812	AcroRd32.exe
3812	AcroRd32.exe
3812	AcroRd32.exe
3812	AcroRd32.exe
3812	AcroRd32.exe
3812	AcroRd32.exe
3812	AcroRd32.exe
3812	AcroRd32.exe
3812	AcroRd32.exe
3812	AcroRd32.exe
3812	AcroRd32.exe
3812	AcroRd32.exe
3812	AcroRd32.exe
3812	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3812	AcroRd32.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
3812	AcroRd32.exe
3812	AcroRd32.exe
3812	AcroRd32.exe
3812	AcroRd32.exe
3812	AcroRd32.exe
3812	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 3812 wrote to memory of 2784	3812	AcroRd32.exe	90
PID 3812 wrote to memory of 2784	3812	AcroRd32.exe	90
PID 3812 wrote to memory of 2784	3812	AcroRd32.exe	90
PID 3812 wrote to memory of 3000	3812	AcroRd32.exe	91
PID 3812 wrote to memory of 3000	3812	AcroRd32.exe	91
PID 3812 wrote to memory of 3000	3812	AcroRd32.exe	91
PID 2784 wrote to memory of 4360	2784	RdrCEF.exe	93
PID 2784 wrote to memory of 4360	2784	RdrCEF.exe	93
PID 2784 wrote to memory of 4360	2784	RdrCEF.exe	93
PID 2784 wrote to memory of 4360	2784	RdrCEF.exe	93
PID 2784 wrote to memory of 4360	2784	RdrCEF.exe	93
PID 2784 wrote to memory of 4360	2784	RdrCEF.exe	93
PID 2784 wrote to memory of 4360	2784	RdrCEF.exe	93
PID 2784 wrote to memory of 4360	2784	RdrCEF.exe	93
PID 2784 wrote to memory of 4360	2784	RdrCEF.exe	93
PID 2784 wrote to memory of 4360	2784	RdrCEF.exe	93
PID 2784 wrote to memory of 4360	2784	RdrCEF.exe	93
PID 2784 wrote to memory of 4360	2784	RdrCEF.exe	93
PID 2784 wrote to memory of 4360	2784	RdrCEF.exe	93
PID 2784 wrote to memory of 4360	2784	RdrCEF.exe	93
PID 2784 wrote to memory of 4360	2784	RdrCEF.exe	93
PID 2784 wrote to memory of 4360	2784	RdrCEF.exe	93
PID 2784 wrote to memory of 4360	2784	RdrCEF.exe	93
PID 2784 wrote to memory of 4360	2784	RdrCEF.exe	93
PID 2784 wrote to memory of 4360	2784	RdrCEF.exe	93
PID 2784 wrote to memory of 4360	2784	RdrCEF.exe	93
PID 2784 wrote to memory of 4360	2784	RdrCEF.exe	93
PID 2784 wrote to memory of 4360	2784	RdrCEF.exe	93
PID 2784 wrote to memory of 4360	2784	RdrCEF.exe	93
PID 2784 wrote to memory of 4360	2784	RdrCEF.exe	93
PID 2784 wrote to memory of 4360	2784	RdrCEF.exe	93
PID 2784 wrote to memory of 4360	2784	RdrCEF.exe	93
PID 2784 wrote to memory of 4360	2784	RdrCEF.exe	93
PID 2784 wrote to memory of 4360	2784	RdrCEF.exe	93
PID 2784 wrote to memory of 4360	2784	RdrCEF.exe	93
PID 2784 wrote to memory of 4360	2784	RdrCEF.exe	93
PID 2784 wrote to memory of 4360	2784	RdrCEF.exe	93
PID 2784 wrote to memory of 4360	2784	RdrCEF.exe	93
PID 2784 wrote to memory of 4360	2784	RdrCEF.exe	93
PID 2784 wrote to memory of 4360	2784	RdrCEF.exe	93
PID 2784 wrote to memory of 4360	2784	RdrCEF.exe	93
PID 2784 wrote to memory of 4360	2784	RdrCEF.exe	93
PID 2784 wrote to memory of 4360	2784	RdrCEF.exe	93
PID 2784 wrote to memory of 4360	2784	RdrCEF.exe	93
PID 2784 wrote to memory of 4360	2784	RdrCEF.exe	93
PID 2784 wrote to memory of 4360	2784	RdrCEF.exe	93
PID 2784 wrote to memory of 4360	2784	RdrCEF.exe	93
PID 2784 wrote to memory of 4716	2784	RdrCEF.exe	94
PID 2784 wrote to memory of 4716	2784	RdrCEF.exe	94
PID 2784 wrote to memory of 4716	2784	RdrCEF.exe	94
PID 2784 wrote to memory of 4716	2784	RdrCEF.exe	94
PID 2784 wrote to memory of 4716	2784	RdrCEF.exe	94
PID 2784 wrote to memory of 4716	2784	RdrCEF.exe	94
PID 2784 wrote to memory of 4716	2784	RdrCEF.exe	94
PID 2784 wrote to memory of 4716	2784	RdrCEF.exe	94
PID 2784 wrote to memory of 4716	2784	RdrCEF.exe	94
PID 2784 wrote to memory of 4716	2784	RdrCEF.exe	94
PID 2784 wrote to memory of 4716	2784	RdrCEF.exe	94
PID 2784 wrote to memory of 4716	2784	RdrCEF.exe	94
PID 2784 wrote to memory of 4716	2784	RdrCEF.exe	94
PID 2784 wrote to memory of 4716	2784	RdrCEF.exe	94
PID 2784 wrote to memory of 4716	2784	RdrCEF.exe	94
PID 2784 wrote to memory of 4716	2784	RdrCEF.exe	94
PID 2784 wrote to memory of 4716	2784	RdrCEF.exe	94

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\Bios_Utilities\AFU\BIOS Flash Guide.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:3812
- 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:2784
- - 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=885D1631B4A9C714F0A9872960A40AFE --mojo-platform-channel-handle=1736 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4360
- - 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=3D73D9469375FBD7A8EBF5FA47C55277 --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=3D73D9469375FBD7A8EBF5FA47C55277 --renderer-client-id=2 --mojo-platform-channel-handle=1760 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4716
- - 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=24296CDAEC9781B5725116DC3A73F575 --mojo-platform-channel-handle=2296 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1276
- - 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=58B5675F6439F1F2B5647E8053AF5E61 --mojo-platform-channel-handle=1876 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2764
- - 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=B35E952B64CCD5C753083527562CC523 --mojo-platform-channel-handle=2312 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:376
- - 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=A616EF041D61F4E0C3FC42FE9884DFF6 --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=A616EF041D61F4E0C3FC42FE9884DFF6 --renderer-client-id=8 --mojo-platform-channel-handle=2392 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:2808
- 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:3000

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:1188

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
4a2b233d86a73e1c2ca2d551e2a45ffa

SHA1
041b16fdad858d7e964b51ed3584d4cbb753df31

SHA256
908be8b9546b9f772c40e555540dd9a3668617db6b04b49cd866c06f35acc30e

SHA512
6a16911387266d1ca21bcded5284c3fa97ad0f9c4769b7bac693dd40a4b3d0dae7b4c2d958f142ece75fd49774d893449a8484cb160a56d398ce0fb6c2609030

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

Filesize
56KB

MD5
752a1f26b18748311b691c7d8fc20633

SHA1
c1f8e83eebc1cc1e9b88c773338eb09ff82ab862

SHA256
111dac2948e4cecb10b0d2e10d8afaa663d78d643826b592d6414a1fd77cc131

SHA512
a2f5f262faf2c3e9756da94b2c47787ce3a9391b5bd53581578aa9a764449e114836704d6dec4aadc097fed4c818831baa11affa1eb25be2bfad9349bb090fe5

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

Filesize
36KB

MD5
b30d3becc8731792523d599d949e63f5

SHA1
19350257e42d7aee17fb3bf139a9d3adb330fad4

SHA256
b1b77e96279ead2b460de3de70e2ea4f5ad1b853598a4e27a5caf3f1a32cc4f3

SHA512
523f54895fb07f62b9a5f72c8b62e83d4d9506bda57b183818615f6eb7286e3b9c5a50409bc5c5164867c3ccdeae88aa395ecca6bc7e36d991552f857510792e

Download Submit
memory/3812-138-0x0000000008270000-0x000000000829A000-memory.dmp

Filesize
168KB

Download