489d96328d1c0bde75b3ed0dbaacdbd54ca3ef236353887844128a8be4b299b8

Analysis

max time kernel
141s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
02/02/2024, 14:51

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General

Target

89cb3989324d33daab2be5c95bb42841.pdf
Size

45KB
MD5

89cb3989324d33daab2be5c95bb42841
SHA1

621d2814cabc938dca737a4dbe65facdece14f42
SHA256

489d96328d1c0bde75b3ed0dbaacdbd54ca3ef236353887844128a8be4b299b8
SHA512

f40645d98e352f1984c036ec928d9c18a0b504e618b3d96cc24d56f51a68c6e12d3b6b39284f11cafc3bcd2788add9301a2f192cf55b9aab67f7e10bc5f78ad3
SSDEEP

768:uxtNwBWFuPZhKeyIFBpVLEmZ4L4RCllDPkcU6O9ybJM9wZ15:uzuP2GVomZc6CllTU6O0blZ15

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-1-5-21-3803511929-1339359695-2191195476-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
4888	AcroRd32.exe
4888	AcroRd32.exe
4888	AcroRd32.exe
4888	AcroRd32.exe
4888	AcroRd32.exe
4888	AcroRd32.exe
4888	AcroRd32.exe
4888	AcroRd32.exe
4888	AcroRd32.exe
4888	AcroRd32.exe
4888	AcroRd32.exe
4888	AcroRd32.exe
4888	AcroRd32.exe
4888	AcroRd32.exe
4888	AcroRd32.exe
4888	AcroRd32.exe
4888	AcroRd32.exe
4888	AcroRd32.exe
4888	AcroRd32.exe
4888	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4888	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
4888	AcroRd32.exe
4888	AcroRd32.exe
4888	AcroRd32.exe
4888	AcroRd32.exe
4888	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4888 wrote to memory of 4676	4888	AcroRd32.exe	90
PID 4888 wrote to memory of 4676	4888	AcroRd32.exe	90
PID 4888 wrote to memory of 4676	4888	AcroRd32.exe	90
PID 4676 wrote to memory of 2164	4676	RdrCEF.exe	91
PID 4676 wrote to memory of 2164	4676	RdrCEF.exe	91
PID 4676 wrote to memory of 2164	4676	RdrCEF.exe	91
PID 4676 wrote to memory of 2164	4676	RdrCEF.exe	91
PID 4676 wrote to memory of 2164	4676	RdrCEF.exe	91
PID 4676 wrote to memory of 2164	4676	RdrCEF.exe	91
PID 4676 wrote to memory of 2164	4676	RdrCEF.exe	91
PID 4676 wrote to memory of 2164	4676	RdrCEF.exe	91
PID 4676 wrote to memory of 2164	4676	RdrCEF.exe	91
PID 4676 wrote to memory of 2164	4676	RdrCEF.exe	91
PID 4676 wrote to memory of 2164	4676	RdrCEF.exe	91
PID 4676 wrote to memory of 2164	4676	RdrCEF.exe	91
PID 4676 wrote to memory of 2164	4676	RdrCEF.exe	91
PID 4676 wrote to memory of 2164	4676	RdrCEF.exe	91
PID 4676 wrote to memory of 2164	4676	RdrCEF.exe	91
PID 4676 wrote to memory of 2164	4676	RdrCEF.exe	91
PID 4676 wrote to memory of 2164	4676	RdrCEF.exe	91
PID 4676 wrote to memory of 2164	4676	RdrCEF.exe	91
PID 4676 wrote to memory of 2164	4676	RdrCEF.exe	91
PID 4676 wrote to memory of 2164	4676	RdrCEF.exe	91
PID 4676 wrote to memory of 2164	4676	RdrCEF.exe	91
PID 4676 wrote to memory of 2164	4676	RdrCEF.exe	91
PID 4676 wrote to memory of 2164	4676	RdrCEF.exe	91
PID 4676 wrote to memory of 2164	4676	RdrCEF.exe	91
PID 4676 wrote to memory of 2164	4676	RdrCEF.exe	91
PID 4676 wrote to memory of 2164	4676	RdrCEF.exe	91
PID 4676 wrote to memory of 2164	4676	RdrCEF.exe	91
PID 4676 wrote to memory of 2164	4676	RdrCEF.exe	91
PID 4676 wrote to memory of 2164	4676	RdrCEF.exe	91
PID 4676 wrote to memory of 2164	4676	RdrCEF.exe	91
PID 4676 wrote to memory of 2164	4676	RdrCEF.exe	91
PID 4676 wrote to memory of 2164	4676	RdrCEF.exe	91
PID 4676 wrote to memory of 2164	4676	RdrCEF.exe	91
PID 4676 wrote to memory of 2164	4676	RdrCEF.exe	91
PID 4676 wrote to memory of 2164	4676	RdrCEF.exe	91
PID 4676 wrote to memory of 2164	4676	RdrCEF.exe	91
PID 4676 wrote to memory of 2164	4676	RdrCEF.exe	91
PID 4676 wrote to memory of 2164	4676	RdrCEF.exe	91
PID 4676 wrote to memory of 2164	4676	RdrCEF.exe	91
PID 4676 wrote to memory of 2164	4676	RdrCEF.exe	91
PID 4676 wrote to memory of 2164	4676	RdrCEF.exe	91
PID 4676 wrote to memory of 2024	4676	RdrCEF.exe	92
PID 4676 wrote to memory of 2024	4676	RdrCEF.exe	92
PID 4676 wrote to memory of 2024	4676	RdrCEF.exe	92
PID 4676 wrote to memory of 2024	4676	RdrCEF.exe	92
PID 4676 wrote to memory of 2024	4676	RdrCEF.exe	92
PID 4676 wrote to memory of 2024	4676	RdrCEF.exe	92
PID 4676 wrote to memory of 2024	4676	RdrCEF.exe	92
PID 4676 wrote to memory of 2024	4676	RdrCEF.exe	92
PID 4676 wrote to memory of 2024	4676	RdrCEF.exe	92
PID 4676 wrote to memory of 2024	4676	RdrCEF.exe	92
PID 4676 wrote to memory of 2024	4676	RdrCEF.exe	92
PID 4676 wrote to memory of 2024	4676	RdrCEF.exe	92
PID 4676 wrote to memory of 2024	4676	RdrCEF.exe	92
PID 4676 wrote to memory of 2024	4676	RdrCEF.exe	92
PID 4676 wrote to memory of 2024	4676	RdrCEF.exe	92
PID 4676 wrote to memory of 2024	4676	RdrCEF.exe	92
PID 4676 wrote to memory of 2024	4676	RdrCEF.exe	92
PID 4676 wrote to memory of 2024	4676	RdrCEF.exe	92
PID 4676 wrote to memory of 2024	4676	RdrCEF.exe	92
PID 4676 wrote to memory of 2024	4676	RdrCEF.exe	92

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\89cb3989324d33daab2be5c95bb42841.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:4888
- 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:4676
- - 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=B1C93761E2C2328C24D59492098F8A04 --mojo-platform-channel-handle=1744 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2164
- - 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=BB0682F9D7C0306E64AAEDF5CAD4D2AC --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=BB0682F9D7C0306E64AAEDF5CAD4D2AC --renderer-client-id=2 --mojo-platform-channel-handle=1752 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:2024
- - 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=EA99D797FD5FF4C2CB45C87492A10AB5 --mojo-platform-channel-handle=2156 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3624
- - 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=3F21F19A267B7C66E59BB6F131B0AEC6 --mojo-platform-channel-handle=2292 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2692
- - 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=A78F0E3AF28E5651FE876F34828E2F82 --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=A78F0E3AF28E5651FE876F34828E2F82 --renderer-client-id=6 --mojo-platform-channel-handle=2520 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:2636
- - 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=FB4E0FEA4844F050A224F2EC50B76849 --mojo-platform-channel-handle=2428 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1412

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:532

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
a2e146971e5cc6073fbb5a17304412ac

SHA1
e233087e7d8a4138c9b6b67796c5edd1303e54a1

SHA256
006aa65fa8f1fe3020ec5988d733cda2c47f6193358e8925bed434569ab3d7dd

SHA512
b8c5e1962ca5e5c10f11ec21a88961723c52a6a97d8be555fd6049a072e69222e548be645ee6ccc9d500b8d573a0d219083ae163f0c80068630818eaa550d8a7

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