8c18f271ef9aa3b8f335f355bdcc090f5874dcbeef1961b26da10720b37b1cda

Analysis

max time kernel
141s
max time network
135s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
28-03-2024 23:09

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General

Target

8c18f271ef9aa3b8f335f355bdcc090f5874dcbeef1961b26da10720b37b1cda.pdf
Size

643KB
MD5

7bd76e0eca12c678d515433bc786cb33
SHA1

92f60b3f2b52eccf15ef2738dbf70f4e1554eb2c
SHA256

8c18f271ef9aa3b8f335f355bdcc090f5874dcbeef1961b26da10720b37b1cda
SHA512

af1b785faf2c9fd78ac42a619a4ab72531348c5069e778d1740f7127fd6f574f4271cd43db6d635b2161e2225b922f75e6005d39da7be647f6d9664d52e597c5
SSDEEP

12288:Kiwu5W6VCxPOwercUcFkHooZKEh0jLDoNNPobfyu/QPOLYw2IgiqUSaX2Emy:+u5WEC//8orEgLWNPoXKO0w/siX9my

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-1-5-21-399997616-3400990511-967324271-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
1520	AcroRd32.exe
1520	AcroRd32.exe
1520	AcroRd32.exe
1520	AcroRd32.exe
1520	AcroRd32.exe
1520	AcroRd32.exe
1520	AcroRd32.exe
1520	AcroRd32.exe
1520	AcroRd32.exe
1520	AcroRd32.exe
1520	AcroRd32.exe
1520	AcroRd32.exe
1520	AcroRd32.exe
1520	AcroRd32.exe
1520	AcroRd32.exe
1520	AcroRd32.exe
1520	AcroRd32.exe
1520	AcroRd32.exe
1520	AcroRd32.exe
1520	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1520	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
1520	AcroRd32.exe
1520	AcroRd32.exe
1520	AcroRd32.exe
1520	AcroRd32.exe
1520	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 1520 wrote to memory of 2092	1520	AcroRd32.exe	91
PID 1520 wrote to memory of 2092	1520	AcroRd32.exe	91
PID 1520 wrote to memory of 2092	1520	AcroRd32.exe	91
PID 2092 wrote to memory of 2424	2092	RdrCEF.exe	94
PID 2092 wrote to memory of 2424	2092	RdrCEF.exe	94
PID 2092 wrote to memory of 2424	2092	RdrCEF.exe	94
PID 2092 wrote to memory of 2424	2092	RdrCEF.exe	94
PID 2092 wrote to memory of 2424	2092	RdrCEF.exe	94
PID 2092 wrote to memory of 2424	2092	RdrCEF.exe	94
PID 2092 wrote to memory of 2424	2092	RdrCEF.exe	94
PID 2092 wrote to memory of 2424	2092	RdrCEF.exe	94
PID 2092 wrote to memory of 2424	2092	RdrCEF.exe	94
PID 2092 wrote to memory of 2424	2092	RdrCEF.exe	94
PID 2092 wrote to memory of 2424	2092	RdrCEF.exe	94
PID 2092 wrote to memory of 2424	2092	RdrCEF.exe	94
PID 2092 wrote to memory of 2424	2092	RdrCEF.exe	94
PID 2092 wrote to memory of 2424	2092	RdrCEF.exe	94
PID 2092 wrote to memory of 2424	2092	RdrCEF.exe	94
PID 2092 wrote to memory of 2424	2092	RdrCEF.exe	94
PID 2092 wrote to memory of 2424	2092	RdrCEF.exe	94
PID 2092 wrote to memory of 2424	2092	RdrCEF.exe	94
PID 2092 wrote to memory of 2424	2092	RdrCEF.exe	94
PID 2092 wrote to memory of 2424	2092	RdrCEF.exe	94
PID 2092 wrote to memory of 2424	2092	RdrCEF.exe	94
PID 2092 wrote to memory of 2424	2092	RdrCEF.exe	94
PID 2092 wrote to memory of 2424	2092	RdrCEF.exe	94
PID 2092 wrote to memory of 2424	2092	RdrCEF.exe	94
PID 2092 wrote to memory of 2424	2092	RdrCEF.exe	94
PID 2092 wrote to memory of 2424	2092	RdrCEF.exe	94
PID 2092 wrote to memory of 2424	2092	RdrCEF.exe	94
PID 2092 wrote to memory of 2424	2092	RdrCEF.exe	94
PID 2092 wrote to memory of 2424	2092	RdrCEF.exe	94
PID 2092 wrote to memory of 2424	2092	RdrCEF.exe	94
PID 2092 wrote to memory of 2424	2092	RdrCEF.exe	94
PID 2092 wrote to memory of 2424	2092	RdrCEF.exe	94
PID 2092 wrote to memory of 2424	2092	RdrCEF.exe	94
PID 2092 wrote to memory of 2424	2092	RdrCEF.exe	94
PID 2092 wrote to memory of 2424	2092	RdrCEF.exe	94
PID 2092 wrote to memory of 2424	2092	RdrCEF.exe	94
PID 2092 wrote to memory of 2424	2092	RdrCEF.exe	94
PID 2092 wrote to memory of 2424	2092	RdrCEF.exe	94
PID 2092 wrote to memory of 2424	2092	RdrCEF.exe	94
PID 2092 wrote to memory of 2424	2092	RdrCEF.exe	94
PID 2092 wrote to memory of 2424	2092	RdrCEF.exe	94
PID 2092 wrote to memory of 3824	2092	RdrCEF.exe	95
PID 2092 wrote to memory of 3824	2092	RdrCEF.exe	95
PID 2092 wrote to memory of 3824	2092	RdrCEF.exe	95
PID 2092 wrote to memory of 3824	2092	RdrCEF.exe	95
PID 2092 wrote to memory of 3824	2092	RdrCEF.exe	95
PID 2092 wrote to memory of 3824	2092	RdrCEF.exe	95
PID 2092 wrote to memory of 3824	2092	RdrCEF.exe	95
PID 2092 wrote to memory of 3824	2092	RdrCEF.exe	95
PID 2092 wrote to memory of 3824	2092	RdrCEF.exe	95
PID 2092 wrote to memory of 3824	2092	RdrCEF.exe	95
PID 2092 wrote to memory of 3824	2092	RdrCEF.exe	95
PID 2092 wrote to memory of 3824	2092	RdrCEF.exe	95
PID 2092 wrote to memory of 3824	2092	RdrCEF.exe	95
PID 2092 wrote to memory of 3824	2092	RdrCEF.exe	95
PID 2092 wrote to memory of 3824	2092	RdrCEF.exe	95
PID 2092 wrote to memory of 3824	2092	RdrCEF.exe	95
PID 2092 wrote to memory of 3824	2092	RdrCEF.exe	95
PID 2092 wrote to memory of 3824	2092	RdrCEF.exe	95
PID 2092 wrote to memory of 3824	2092	RdrCEF.exe	95
PID 2092 wrote to memory of 3824	2092	RdrCEF.exe	95

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\8c18f271ef9aa3b8f335f355bdcc090f5874dcbeef1961b26da10720b37b1cda.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:1520
- 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:2092
- - 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=08701BB8D45012F041DD64C873CB9D8C --mojo-platform-channel-handle=1748 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2424
- - 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=94A736F553ADE6DD5B9612BD81D12A2D --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=94A736F553ADE6DD5B9612BD81D12A2D --renderer-client-id=2 --mojo-platform-channel-handle=1756 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:3824
- - 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=47558F76E47A8C9418A266BA013E0A1B --mojo-platform-channel-handle=2164 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3396
- - 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=58EA2F720BD22DA16B92C825DD6A4DA1 --mojo-platform-channel-handle=1880 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2280
- - 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=2E7CDAC3C05CBED67DD6F78334FDC735 --mojo-platform-channel-handle=2336 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1976
- - 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=7E78038D5C0BF54751DCC40BF2709816 --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=7E78038D5C0BF54751DCC40BF2709816 --renderer-client-id=7 --mojo-platform-channel-handle=2168 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4220

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:396

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
b0946fa69a00e3049ccb242a20751c43

SHA1
8cdf6c36d110e92af510ec8de58d2da910a187bb

SHA256
e05b206d81e5c5c5d9d544b5cc80297f80632d53a764c63ad4ac2b2311d5d7b0

SHA512
7d8857f8ea21d25c2f564be0f1de93f65470adbd2b3c478f718933b763e940a4a0e934ee7035d0e844bf45ad140377f7070dfd564307f7fc6e919ffce7d7f20c

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