d923eb89f6a9af2d68434d4e6f788ff068d5959e2aca161fbb9a373c3c082d71

Analysis

max time kernel
147s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
01/02/2024, 16:44

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General

Target

876308a3bd601d8934a01c3549f5c3ef.pdf
Size

31KB
MD5

876308a3bd601d8934a01c3549f5c3ef
SHA1

9c343fc49560f71eb8be6e355a01cfc175087e61
SHA256

d923eb89f6a9af2d68434d4e6f788ff068d5959e2aca161fbb9a373c3c082d71
SHA512

33640a2ce852ee361b0dac507ac459c59d17a9ef285daa892fea5448678abf7bb9a2912399225a9f6a0c1898c5f541804bdc138bc060826d906c5789eca3e5be
SSDEEP

768:ZgGzpDCtBBwoyJF3mbxiqHX1crYP0lxGQir:aGF+SoyJ9ixiqHlKlxGQir

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-1-5-21-3791175113-1062217823-1177695025-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
1820	AcroRd32.exe
1820	AcroRd32.exe
1820	AcroRd32.exe
1820	AcroRd32.exe
1820	AcroRd32.exe
1820	AcroRd32.exe
1820	AcroRd32.exe
1820	AcroRd32.exe
1820	AcroRd32.exe
1820	AcroRd32.exe
1820	AcroRd32.exe
1820	AcroRd32.exe
1820	AcroRd32.exe
1820	AcroRd32.exe
1820	AcroRd32.exe
1820	AcroRd32.exe
1820	AcroRd32.exe
1820	AcroRd32.exe
1820	AcroRd32.exe
1820	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1820	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
1820	AcroRd32.exe
1820	AcroRd32.exe
1820	AcroRd32.exe
1820	AcroRd32.exe
1820	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 1820 wrote to memory of 2288	1820	AcroRd32.exe	87
PID 1820 wrote to memory of 2288	1820	AcroRd32.exe	87
PID 1820 wrote to memory of 2288	1820	AcroRd32.exe	87
PID 2288 wrote to memory of 4092	2288	RdrCEF.exe	88
PID 2288 wrote to memory of 4092	2288	RdrCEF.exe	88
PID 2288 wrote to memory of 4092	2288	RdrCEF.exe	88
PID 2288 wrote to memory of 4092	2288	RdrCEF.exe	88
PID 2288 wrote to memory of 4092	2288	RdrCEF.exe	88
PID 2288 wrote to memory of 4092	2288	RdrCEF.exe	88
PID 2288 wrote to memory of 4092	2288	RdrCEF.exe	88
PID 2288 wrote to memory of 4092	2288	RdrCEF.exe	88
PID 2288 wrote to memory of 4092	2288	RdrCEF.exe	88
PID 2288 wrote to memory of 4092	2288	RdrCEF.exe	88
PID 2288 wrote to memory of 4092	2288	RdrCEF.exe	88
PID 2288 wrote to memory of 4092	2288	RdrCEF.exe	88
PID 2288 wrote to memory of 4092	2288	RdrCEF.exe	88
PID 2288 wrote to memory of 4092	2288	RdrCEF.exe	88
PID 2288 wrote to memory of 4092	2288	RdrCEF.exe	88
PID 2288 wrote to memory of 4092	2288	RdrCEF.exe	88
PID 2288 wrote to memory of 4092	2288	RdrCEF.exe	88
PID 2288 wrote to memory of 4092	2288	RdrCEF.exe	88
PID 2288 wrote to memory of 4092	2288	RdrCEF.exe	88
PID 2288 wrote to memory of 4092	2288	RdrCEF.exe	88
PID 2288 wrote to memory of 4092	2288	RdrCEF.exe	88
PID 2288 wrote to memory of 4092	2288	RdrCEF.exe	88
PID 2288 wrote to memory of 4092	2288	RdrCEF.exe	88
PID 2288 wrote to memory of 4092	2288	RdrCEF.exe	88
PID 2288 wrote to memory of 4092	2288	RdrCEF.exe	88
PID 2288 wrote to memory of 4092	2288	RdrCEF.exe	88
PID 2288 wrote to memory of 4092	2288	RdrCEF.exe	88
PID 2288 wrote to memory of 4092	2288	RdrCEF.exe	88
PID 2288 wrote to memory of 4092	2288	RdrCEF.exe	88
PID 2288 wrote to memory of 4092	2288	RdrCEF.exe	88
PID 2288 wrote to memory of 4092	2288	RdrCEF.exe	88
PID 2288 wrote to memory of 4092	2288	RdrCEF.exe	88
PID 2288 wrote to memory of 4092	2288	RdrCEF.exe	88
PID 2288 wrote to memory of 4092	2288	RdrCEF.exe	88
PID 2288 wrote to memory of 4092	2288	RdrCEF.exe	88
PID 2288 wrote to memory of 4092	2288	RdrCEF.exe	88
PID 2288 wrote to memory of 4092	2288	RdrCEF.exe	88
PID 2288 wrote to memory of 4092	2288	RdrCEF.exe	88
PID 2288 wrote to memory of 4092	2288	RdrCEF.exe	88
PID 2288 wrote to memory of 4092	2288	RdrCEF.exe	88
PID 2288 wrote to memory of 4092	2288	RdrCEF.exe	88
PID 2288 wrote to memory of 2848	2288	RdrCEF.exe	89
PID 2288 wrote to memory of 2848	2288	RdrCEF.exe	89
PID 2288 wrote to memory of 2848	2288	RdrCEF.exe	89
PID 2288 wrote to memory of 2848	2288	RdrCEF.exe	89
PID 2288 wrote to memory of 2848	2288	RdrCEF.exe	89
PID 2288 wrote to memory of 2848	2288	RdrCEF.exe	89
PID 2288 wrote to memory of 2848	2288	RdrCEF.exe	89
PID 2288 wrote to memory of 2848	2288	RdrCEF.exe	89
PID 2288 wrote to memory of 2848	2288	RdrCEF.exe	89
PID 2288 wrote to memory of 2848	2288	RdrCEF.exe	89
PID 2288 wrote to memory of 2848	2288	RdrCEF.exe	89
PID 2288 wrote to memory of 2848	2288	RdrCEF.exe	89
PID 2288 wrote to memory of 2848	2288	RdrCEF.exe	89
PID 2288 wrote to memory of 2848	2288	RdrCEF.exe	89
PID 2288 wrote to memory of 2848	2288	RdrCEF.exe	89
PID 2288 wrote to memory of 2848	2288	RdrCEF.exe	89
PID 2288 wrote to memory of 2848	2288	RdrCEF.exe	89
PID 2288 wrote to memory of 2848	2288	RdrCEF.exe	89
PID 2288 wrote to memory of 2848	2288	RdrCEF.exe	89
PID 2288 wrote to memory of 2848	2288	RdrCEF.exe	89

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\876308a3bd601d8934a01c3549f5c3ef.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:1820
- 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:2288
- - 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=B0399FCCEF929EE270D46AFFB2DC40A6 --mojo-platform-channel-handle=1752 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4092
- - 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=0A5980719BB6E3A60F7EBE488D6D1D00 --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=0A5980719BB6E3A60F7EBE488D6D1D00 --renderer-client-id=2 --mojo-platform-channel-handle=1720 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:2848
- - 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=8ADEF3F860E11EE2FABE6147A4A2E611 --mojo-platform-channel-handle=2324 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2524
- - 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=DF5DC410584D85829769E5CAC8E91CD8 --mojo-platform-channel-handle=2472 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3776
- - 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=C672D1A7C8FA9F58DA021C94AB0A7E9C --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=C672D1A7C8FA9F58DA021C94AB0A7E9C --renderer-client-id=6 --mojo-platform-channel-handle=2532 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:5088
- - 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=9A294B38117980908170B791D7ABEA78 --mojo-platform-channel-handle=2352 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:5052

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:4244

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
b8debe813c5c1846e8aa737029b0b382

SHA1
94be598122c58532874cb7ce88a4a9d54c830246

SHA256
4e0fe8d8e0232c9adbfb1eca1c7441034a821cd99dee30c7fb39b2a097d88242

SHA512
d7164c6772a607ed188b88c9abd029eaa02104a0494c31a5397b0ea4c80b361a6ba2c54c36ad8912058275ed6371d06ce46a7ad85c30d09b27bdbfc3ff9d8555

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