5a8c46e899347ef36b7e6796791d13ec51713ab9327e4f61eb21bbf5eb1020b0

Analysis

max time kernel
143s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20231023-en
resource tags

arch:x64arch:x86image:win10v2004-20231023-enlocale:en-usos:windows10-2004-x64system
submitted
07-11-2023 14:43

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General

Target

Bv9ARM.pdf
Size

1.4MB
MD5

2e35bdb253a897a815ca1b24a1e74591
SHA1

e3f42b286f17f3902083b9662474b76775990dae
SHA256

bdada725a1c62ea7c51a71b25d827fe7b3f82cb6bda81ab798661c984ebf43a7
SHA512

7432a1cb815d52272f8e383300ca7db307e96a9ac08d0e56228034cd5a2331add0c3b40106d5f837ee34fcf65bbf0015586906ab168b78ce82dac149fd2bb4ca
SSDEEP

24576:RhiYDOuJIwIGWAS7IxYX8kS4EG8B3KbswR9/ZzgI:HVhJdIAa8kSc8BWcI

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-1-5-21-2231940048-779848787-2990559741-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
4904	AcroRd32.exe
4904	AcroRd32.exe
4904	AcroRd32.exe
4904	AcroRd32.exe
4904	AcroRd32.exe
4904	AcroRd32.exe
4904	AcroRd32.exe
4904	AcroRd32.exe
4904	AcroRd32.exe
4904	AcroRd32.exe
4904	AcroRd32.exe
4904	AcroRd32.exe
4904	AcroRd32.exe
4904	AcroRd32.exe
4904	AcroRd32.exe
4904	AcroRd32.exe
4904	AcroRd32.exe
4904	AcroRd32.exe
4904	AcroRd32.exe
4904	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4904	AcroRd32.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
4904	AcroRd32.exe
4904	AcroRd32.exe
4904	AcroRd32.exe
4904	AcroRd32.exe
4904	AcroRd32.exe
4904	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4904 wrote to memory of 1584	4904	AcroRd32.exe	90
PID 4904 wrote to memory of 1584	4904	AcroRd32.exe	90
PID 4904 wrote to memory of 1584	4904	AcroRd32.exe	90
PID 4904 wrote to memory of 1588	4904	AcroRd32.exe	92
PID 4904 wrote to memory of 1588	4904	AcroRd32.exe	92
PID 4904 wrote to memory of 1588	4904	AcroRd32.exe	92
PID 1584 wrote to memory of 3464	1584	RdrCEF.exe	93
PID 1584 wrote to memory of 3464	1584	RdrCEF.exe	93
PID 1584 wrote to memory of 3464	1584	RdrCEF.exe	93
PID 1584 wrote to memory of 3464	1584	RdrCEF.exe	93
PID 1584 wrote to memory of 3464	1584	RdrCEF.exe	93
PID 1584 wrote to memory of 3464	1584	RdrCEF.exe	93
PID 1584 wrote to memory of 3464	1584	RdrCEF.exe	93
PID 1584 wrote to memory of 3464	1584	RdrCEF.exe	93
PID 1584 wrote to memory of 3464	1584	RdrCEF.exe	93
PID 1584 wrote to memory of 3464	1584	RdrCEF.exe	93
PID 1584 wrote to memory of 3464	1584	RdrCEF.exe	93
PID 1584 wrote to memory of 3464	1584	RdrCEF.exe	93
PID 1584 wrote to memory of 3464	1584	RdrCEF.exe	93
PID 1584 wrote to memory of 3464	1584	RdrCEF.exe	93
PID 1584 wrote to memory of 3464	1584	RdrCEF.exe	93
PID 1584 wrote to memory of 3464	1584	RdrCEF.exe	93
PID 1584 wrote to memory of 3464	1584	RdrCEF.exe	93
PID 1584 wrote to memory of 3464	1584	RdrCEF.exe	93
PID 1584 wrote to memory of 3464	1584	RdrCEF.exe	93
PID 1584 wrote to memory of 3464	1584	RdrCEF.exe	93
PID 1584 wrote to memory of 3464	1584	RdrCEF.exe	93
PID 1584 wrote to memory of 3464	1584	RdrCEF.exe	93
PID 1584 wrote to memory of 3464	1584	RdrCEF.exe	93
PID 1584 wrote to memory of 3464	1584	RdrCEF.exe	93
PID 1584 wrote to memory of 3464	1584	RdrCEF.exe	93
PID 1584 wrote to memory of 3464	1584	RdrCEF.exe	93
PID 1584 wrote to memory of 3464	1584	RdrCEF.exe	93
PID 1584 wrote to memory of 3464	1584	RdrCEF.exe	93
PID 1584 wrote to memory of 3464	1584	RdrCEF.exe	93
PID 1584 wrote to memory of 3464	1584	RdrCEF.exe	93
PID 1584 wrote to memory of 3464	1584	RdrCEF.exe	93
PID 1584 wrote to memory of 3464	1584	RdrCEF.exe	93
PID 1584 wrote to memory of 3464	1584	RdrCEF.exe	93
PID 1584 wrote to memory of 3464	1584	RdrCEF.exe	93
PID 1584 wrote to memory of 3464	1584	RdrCEF.exe	93
PID 1584 wrote to memory of 3464	1584	RdrCEF.exe	93
PID 1584 wrote to memory of 3464	1584	RdrCEF.exe	93
PID 1584 wrote to memory of 3464	1584	RdrCEF.exe	93
PID 1584 wrote to memory of 3464	1584	RdrCEF.exe	93
PID 1584 wrote to memory of 3464	1584	RdrCEF.exe	93
PID 1584 wrote to memory of 3464	1584	RdrCEF.exe	93
PID 1584 wrote to memory of 4788	1584	RdrCEF.exe	94
PID 1584 wrote to memory of 4788	1584	RdrCEF.exe	94
PID 1584 wrote to memory of 4788	1584	RdrCEF.exe	94
PID 1584 wrote to memory of 4788	1584	RdrCEF.exe	94
PID 1584 wrote to memory of 4788	1584	RdrCEF.exe	94
PID 1584 wrote to memory of 4788	1584	RdrCEF.exe	94
PID 1584 wrote to memory of 4788	1584	RdrCEF.exe	94
PID 1584 wrote to memory of 4788	1584	RdrCEF.exe	94
PID 1584 wrote to memory of 4788	1584	RdrCEF.exe	94
PID 1584 wrote to memory of 4788	1584	RdrCEF.exe	94
PID 1584 wrote to memory of 4788	1584	RdrCEF.exe	94
PID 1584 wrote to memory of 4788	1584	RdrCEF.exe	94
PID 1584 wrote to memory of 4788	1584	RdrCEF.exe	94
PID 1584 wrote to memory of 4788	1584	RdrCEF.exe	94
PID 1584 wrote to memory of 4788	1584	RdrCEF.exe	94
PID 1584 wrote to memory of 4788	1584	RdrCEF.exe	94
PID 1584 wrote to memory of 4788	1584	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\Bv9ARM.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:4904
- 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:1584
- - 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=9593542F72F6398CC851520797350601 --mojo-platform-channel-handle=1732 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3464
- - 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=A5BDD52F70909AC45670F6BE32E49D66 --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=A5BDD52F70909AC45670F6BE32E49D66 --renderer-client-id=2 --mojo-platform-channel-handle=1724 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4788
- - 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=1E65A1C17A141FD581488E5F6016DA47 --mojo-platform-channel-handle=2176 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4420
- - 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=E1D1961C1CDD239D8E04BD6C268B88CC --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=E1D1961C1CDD239D8E04BD6C268B88CC --renderer-client-id=5 --mojo-platform-channel-handle=1944 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:3468
- - 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=3823FB24185ABDB2A4BD263C046D9492 --mojo-platform-channel-handle=2580 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:756
- - 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=245ADEEF0E6DC48F6BE21587577FE4A7 --mojo-platform-channel-handle=2588 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1180
- 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:1588

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:4060

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
acb2215f9d096ae986ebc7b15972282f

SHA1
c07a92ee258dc06a83fc045b3775c022d7d03b59

SHA256
0ead9487336a19c10f43b46041041e0dc7db68202c40446ed631effed45b1860

SHA512
089b10e566618da6fe730783cc0a3d5f0e1792755f5d751eb67dafc5c9df810c265cefe00649fb4904a887c00f87e239496e5dc455c5eb71fad5ecaa01cffab6

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