b70b4f3dd1392d90f0c31368c34fca03f54edf13788ab4253d2706d5595d1460

Analysis

max time kernel
152s
max time network
158s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
05-01-2024 00:50

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General

Target

4258bc5944ed55ab3af84a8f7c6de89b.pdf
Size

110KB
MD5

4258bc5944ed55ab3af84a8f7c6de89b
SHA1

cede6794c7af4db00daf9bbac20526248e152bb9
SHA256

b70b4f3dd1392d90f0c31368c34fca03f54edf13788ab4253d2706d5595d1460
SHA512

662a4e90ec01c19f6d307933cfd60aae3437eaaf8de6e898fe737bea7e4164756a79f91e7f3ea832c79855787b0df7f9ca7ed3d141fc353cf06c110a96ee3535
SSDEEP

768:DG9WZSVsV1YPveYmYGbLB/vbQNK775BoQ4mijVJipEhiD6T+bIxp0sO9PGVigGZw:g

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-1-5-21-3336304223-2978740688-3645194410-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
5096	AcroRd32.exe
5096	AcroRd32.exe
5096	AcroRd32.exe
5096	AcroRd32.exe
5096	AcroRd32.exe
5096	AcroRd32.exe
5096	AcroRd32.exe
5096	AcroRd32.exe
5096	AcroRd32.exe
5096	AcroRd32.exe
5096	AcroRd32.exe
5096	AcroRd32.exe
5096	AcroRd32.exe
5096	AcroRd32.exe
5096	AcroRd32.exe
5096	AcroRd32.exe
5096	AcroRd32.exe
5096	AcroRd32.exe
5096	AcroRd32.exe
5096	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
5096	AcroRd32.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
5096	AcroRd32.exe
5096	AcroRd32.exe
5096	AcroRd32.exe
5096	AcroRd32.exe
5096	AcroRd32.exe
5096	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 5096 wrote to memory of 3808	5096	AcroRd32.exe	93
PID 5096 wrote to memory of 3808	5096	AcroRd32.exe	93
PID 5096 wrote to memory of 3808	5096	AcroRd32.exe	93
PID 5096 wrote to memory of 3216	5096	AcroRd32.exe	94
PID 5096 wrote to memory of 3216	5096	AcroRd32.exe	94
PID 5096 wrote to memory of 3216	5096	AcroRd32.exe	94
PID 3808 wrote to memory of 4528	3808	RdrCEF.exe	95
PID 3808 wrote to memory of 4528	3808	RdrCEF.exe	95
PID 3808 wrote to memory of 4528	3808	RdrCEF.exe	95
PID 3808 wrote to memory of 4528	3808	RdrCEF.exe	95
PID 3808 wrote to memory of 4528	3808	RdrCEF.exe	95
PID 3808 wrote to memory of 4528	3808	RdrCEF.exe	95
PID 3808 wrote to memory of 4528	3808	RdrCEF.exe	95
PID 3808 wrote to memory of 4528	3808	RdrCEF.exe	95
PID 3808 wrote to memory of 4528	3808	RdrCEF.exe	95
PID 3808 wrote to memory of 4528	3808	RdrCEF.exe	95
PID 3808 wrote to memory of 4528	3808	RdrCEF.exe	95
PID 3808 wrote to memory of 4528	3808	RdrCEF.exe	95
PID 3808 wrote to memory of 4528	3808	RdrCEF.exe	95
PID 3808 wrote to memory of 4528	3808	RdrCEF.exe	95
PID 3808 wrote to memory of 4528	3808	RdrCEF.exe	95
PID 3808 wrote to memory of 4528	3808	RdrCEF.exe	95
PID 3808 wrote to memory of 4528	3808	RdrCEF.exe	95
PID 3808 wrote to memory of 4528	3808	RdrCEF.exe	95
PID 3808 wrote to memory of 4528	3808	RdrCEF.exe	95
PID 3808 wrote to memory of 4528	3808	RdrCEF.exe	95
PID 3808 wrote to memory of 4528	3808	RdrCEF.exe	95
PID 3808 wrote to memory of 4528	3808	RdrCEF.exe	95
PID 3808 wrote to memory of 4528	3808	RdrCEF.exe	95
PID 3808 wrote to memory of 4528	3808	RdrCEF.exe	95
PID 3808 wrote to memory of 4528	3808	RdrCEF.exe	95
PID 3808 wrote to memory of 4528	3808	RdrCEF.exe	95
PID 3808 wrote to memory of 4528	3808	RdrCEF.exe	95
PID 3808 wrote to memory of 4528	3808	RdrCEF.exe	95
PID 3808 wrote to memory of 4528	3808	RdrCEF.exe	95
PID 3808 wrote to memory of 4528	3808	RdrCEF.exe	95
PID 3808 wrote to memory of 4528	3808	RdrCEF.exe	95
PID 3808 wrote to memory of 4528	3808	RdrCEF.exe	95
PID 3808 wrote to memory of 4528	3808	RdrCEF.exe	95
PID 3808 wrote to memory of 4528	3808	RdrCEF.exe	95
PID 3808 wrote to memory of 4528	3808	RdrCEF.exe	95
PID 3808 wrote to memory of 4528	3808	RdrCEF.exe	95
PID 3808 wrote to memory of 4528	3808	RdrCEF.exe	95
PID 3808 wrote to memory of 4528	3808	RdrCEF.exe	95
PID 3808 wrote to memory of 4528	3808	RdrCEF.exe	95
PID 3808 wrote to memory of 4528	3808	RdrCEF.exe	95
PID 3808 wrote to memory of 4528	3808	RdrCEF.exe	95
PID 3808 wrote to memory of 3240	3808	RdrCEF.exe	96
PID 3808 wrote to memory of 3240	3808	RdrCEF.exe	96
PID 3808 wrote to memory of 3240	3808	RdrCEF.exe	96
PID 3808 wrote to memory of 3240	3808	RdrCEF.exe	96
PID 3808 wrote to memory of 3240	3808	RdrCEF.exe	96
PID 3808 wrote to memory of 3240	3808	RdrCEF.exe	96
PID 3808 wrote to memory of 3240	3808	RdrCEF.exe	96
PID 3808 wrote to memory of 3240	3808	RdrCEF.exe	96
PID 3808 wrote to memory of 3240	3808	RdrCEF.exe	96
PID 3808 wrote to memory of 3240	3808	RdrCEF.exe	96
PID 3808 wrote to memory of 3240	3808	RdrCEF.exe	96
PID 3808 wrote to memory of 3240	3808	RdrCEF.exe	96
PID 3808 wrote to memory of 3240	3808	RdrCEF.exe	96
PID 3808 wrote to memory of 3240	3808	RdrCEF.exe	96
PID 3808 wrote to memory of 3240	3808	RdrCEF.exe	96
PID 3808 wrote to memory of 3240	3808	RdrCEF.exe	96
PID 3808 wrote to memory of 3240	3808	RdrCEF.exe	96

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\4258bc5944ed55ab3af84a8f7c6de89b.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:5096
- 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:3808
- - 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=E73DD5FA26BDD95B2E9ACE44A6E437F0 --mojo-platform-channel-handle=1720 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4528
- - 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=7CB1EC4309B1A73796AD5DE44074B89E --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=7CB1EC4309B1A73796AD5DE44074B89E --renderer-client-id=2 --mojo-platform-channel-handle=1728 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:3240
- - 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=2F33D82E308F3172A46E1E921BD72DBA --mojo-platform-channel-handle=2276 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4544
- - 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=CA064DE155EDFBAB08FD6EA2D4E5887B --mojo-platform-channel-handle=1872 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1916
- - 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=7B29B963D6BEDFD1E38FC0D6224E06DA --mojo-platform-channel-handle=1912 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3076
- - 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=FD8C6880789E67DDC381BD642E6D058F --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=FD8C6880789E67DDC381BD642E6D058F --renderer-client-id=7 --mojo-platform-channel-handle=1832 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4468
- 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:3216

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:4428

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
a119dbef3e49357924205896e33408f6

SHA1
cf35569d2317219e8405e3a56db98fb02b8265db

SHA256
3a3129b601ccc5674ad5f1ed6700700bcb03035d0fb88e26e716054617d8db45

SHA512
324305b74c0a42d95d92a1e1f434a9ae9aa3593ccde2f377d0bbd8b092737e3107cffc446a0e56d1d53ac0c611b3a68d88d09df4d1c9a202bdd08f303697dc39

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