92853b65366d780bd7e3a7140cb645059f8faad7c70eacc8115a171baf11093f

Analysis

max time kernel
446s
max time network
452s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
03/06/2024, 18:16

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General

Target

Documents/Net Viewer User Guide JA.pdf
Size

1.0MB
MD5

42600e058fd66c879d008146142a8b3e
SHA1

e3d6f5924b9205be99ce7858b5f785a62e2a91e6
SHA256

cc827fb11e0289b9bfc291db4e038257dbe77bd5ef473d439c21fcc338fce428
SHA512

84bb5a43ffa5a6100013fc0e4b6e3e89e3f25424fff47ac81b5497eda335c98338faee590124df7e5aa8dcd1c358e44da812d5755a6185a9c10f9459437fac95
SSDEEP

24576:BJixsmvIbjg5uuS054f749t7o243wIB2vt:BkBvIbEYR054f749tE1gIEt

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-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4664	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
4664	AcroRd32.exe
4664	AcroRd32.exe
4664	AcroRd32.exe
4664	AcroRd32.exe
4664	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4664 wrote to memory of 4816	4664	AcroRd32.exe	89
PID 4664 wrote to memory of 4816	4664	AcroRd32.exe	89
PID 4664 wrote to memory of 4816	4664	AcroRd32.exe	89
PID 4816 wrote to memory of 2992	4816	RdrCEF.exe	90
PID 4816 wrote to memory of 2992	4816	RdrCEF.exe	90
PID 4816 wrote to memory of 2992	4816	RdrCEF.exe	90
PID 4816 wrote to memory of 2992	4816	RdrCEF.exe	90
PID 4816 wrote to memory of 2992	4816	RdrCEF.exe	90
PID 4816 wrote to memory of 2992	4816	RdrCEF.exe	90
PID 4816 wrote to memory of 2992	4816	RdrCEF.exe	90
PID 4816 wrote to memory of 2992	4816	RdrCEF.exe	90
PID 4816 wrote to memory of 2992	4816	RdrCEF.exe	90
PID 4816 wrote to memory of 2992	4816	RdrCEF.exe	90
PID 4816 wrote to memory of 2992	4816	RdrCEF.exe	90
PID 4816 wrote to memory of 2992	4816	RdrCEF.exe	90
PID 4816 wrote to memory of 2992	4816	RdrCEF.exe	90
PID 4816 wrote to memory of 2992	4816	RdrCEF.exe	90
PID 4816 wrote to memory of 2992	4816	RdrCEF.exe	90
PID 4816 wrote to memory of 2992	4816	RdrCEF.exe	90
PID 4816 wrote to memory of 2992	4816	RdrCEF.exe	90
PID 4816 wrote to memory of 2992	4816	RdrCEF.exe	90
PID 4816 wrote to memory of 2992	4816	RdrCEF.exe	90
PID 4816 wrote to memory of 2992	4816	RdrCEF.exe	90
PID 4816 wrote to memory of 2992	4816	RdrCEF.exe	90
PID 4816 wrote to memory of 2992	4816	RdrCEF.exe	90
PID 4816 wrote to memory of 2992	4816	RdrCEF.exe	90
PID 4816 wrote to memory of 2992	4816	RdrCEF.exe	90
PID 4816 wrote to memory of 2992	4816	RdrCEF.exe	90
PID 4816 wrote to memory of 2992	4816	RdrCEF.exe	90
PID 4816 wrote to memory of 2992	4816	RdrCEF.exe	90
PID 4816 wrote to memory of 2992	4816	RdrCEF.exe	90
PID 4816 wrote to memory of 2992	4816	RdrCEF.exe	90
PID 4816 wrote to memory of 2992	4816	RdrCEF.exe	90
PID 4816 wrote to memory of 2992	4816	RdrCEF.exe	90
PID 4816 wrote to memory of 2992	4816	RdrCEF.exe	90
PID 4816 wrote to memory of 2992	4816	RdrCEF.exe	90
PID 4816 wrote to memory of 2992	4816	RdrCEF.exe	90
PID 4816 wrote to memory of 2992	4816	RdrCEF.exe	90
PID 4816 wrote to memory of 2992	4816	RdrCEF.exe	90
PID 4816 wrote to memory of 2992	4816	RdrCEF.exe	90
PID 4816 wrote to memory of 2992	4816	RdrCEF.exe	90
PID 4816 wrote to memory of 2992	4816	RdrCEF.exe	90
PID 4816 wrote to memory of 2992	4816	RdrCEF.exe	90
PID 4816 wrote to memory of 2992	4816	RdrCEF.exe	90
PID 4816 wrote to memory of 2696	4816	RdrCEF.exe	91
PID 4816 wrote to memory of 2696	4816	RdrCEF.exe	91
PID 4816 wrote to memory of 2696	4816	RdrCEF.exe	91
PID 4816 wrote to memory of 2696	4816	RdrCEF.exe	91
PID 4816 wrote to memory of 2696	4816	RdrCEF.exe	91
PID 4816 wrote to memory of 2696	4816	RdrCEF.exe	91
PID 4816 wrote to memory of 2696	4816	RdrCEF.exe	91
PID 4816 wrote to memory of 2696	4816	RdrCEF.exe	91
PID 4816 wrote to memory of 2696	4816	RdrCEF.exe	91
PID 4816 wrote to memory of 2696	4816	RdrCEF.exe	91
PID 4816 wrote to memory of 2696	4816	RdrCEF.exe	91
PID 4816 wrote to memory of 2696	4816	RdrCEF.exe	91
PID 4816 wrote to memory of 2696	4816	RdrCEF.exe	91
PID 4816 wrote to memory of 2696	4816	RdrCEF.exe	91
PID 4816 wrote to memory of 2696	4816	RdrCEF.exe	91
PID 4816 wrote to memory of 2696	4816	RdrCEF.exe	91
PID 4816 wrote to memory of 2696	4816	RdrCEF.exe	91
PID 4816 wrote to memory of 2696	4816	RdrCEF.exe	91
PID 4816 wrote to memory of 2696	4816	RdrCEF.exe	91
PID 4816 wrote to memory of 2696	4816	RdrCEF.exe	91

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\Documents\Net Viewer User Guide JA.pdf"
1⤵
- Checks processor information in registry
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4664
- 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:4816
- - 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=FB60266B3FA7D1382133A5CB6A071861 --mojo-platform-channel-handle=1748 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2992
- - 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=13EA070381722EFD6DE26EE76E43BAAD --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=13EA070381722EFD6DE26EE76E43BAAD --renderer-client-id=2 --mojo-platform-channel-handle=1740 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:2696
- - 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=2B08A18EBB6B54403F11F2C5A7B26EB0 --mojo-platform-channel-handle=2308 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4228
- - 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=0820C9CD71B3950A5FCEB99862C442DB --mojo-platform-channel-handle=2416 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2656
- - 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=2BB8606C29438825619D1048670B619D --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=2BB8606C29438825619D1048670B619D --renderer-client-id=6 --mojo-platform-channel-handle=1944 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:3740
- - 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=CE8F97A506FC1ED53ABEFBB43306D947 --mojo-platform-channel-handle=2380 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4564

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:3204

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
7db829a3c8c102ace9c408f10b5c21b5

SHA1
12325d54b0a8648bc9070f4ed6ea1265cd9f38b0

SHA256
da614648a78f49c39761af9882e16972460881ca0f0b2c5936a1756af8cd0072

SHA512
ffadec59fb6be3678fdec934edd80682e2edb86e5110b40d3ca1f5a8ba2708ff6505c7463b3c1fc6c6a3577184803f4021b435b8a9f7dc1c8b60dd321d153f13

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

Filesize
64KB

MD5
4d10d933f511b5b1d8bece5ad2446d08

SHA1
abe99093f50a236f787f7ade1ce46d20f8d5e1eb

SHA256
58fca581017b673b6b4c01b143e27e47624e0b66958d411bb767ef3ecf7c8943

SHA512
b2d91e0473e22adb7245737dd310ac51e31dd81facee418b5a9cf3af516f689e1f67bd7a074d02ea6ce5ed3e3e92b44bad6cd717eb70d654631cd4305bcdcda5

Download Submit