8ff28e8ada3229152f3ac145d4f634e47fb1a0b602804bb7271f6e31871cd8a4

Analysis

max time kernel
143s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
08-01-2024 23:24

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General

Target

4cb9915fb308f5110b15e8087fb66396.pdf
Size

34KB
MD5

4cb9915fb308f5110b15e8087fb66396
SHA1

8584486cb88b251488b994ffda17521c0d694607
SHA256

8ff28e8ada3229152f3ac145d4f634e47fb1a0b602804bb7271f6e31871cd8a4
SHA512

2f86d7a74f9d537653d3c8c379d56972903fd8e2496f01c5b0654ee330343b035601880c4a0f92eb519fcafda8410c8273a18adbf2226f965d1b77411ce10867
SSDEEP

768:cvjejHyvsRQ07OjUx8Of7GTM4qqv3OcoOdun1jRVKWNQ:c7e7G0KjQb6nzv3bd81NxNQ

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-1-5-21-1815711207-1844170477-3539718864-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
4140	AcroRd32.exe
4140	AcroRd32.exe
4140	AcroRd32.exe
4140	AcroRd32.exe
4140	AcroRd32.exe
4140	AcroRd32.exe
4140	AcroRd32.exe
4140	AcroRd32.exe
4140	AcroRd32.exe
4140	AcroRd32.exe
4140	AcroRd32.exe
4140	AcroRd32.exe
4140	AcroRd32.exe
4140	AcroRd32.exe
4140	AcroRd32.exe
4140	AcroRd32.exe
4140	AcroRd32.exe
4140	AcroRd32.exe
4140	AcroRd32.exe
4140	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4140	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
4140	AcroRd32.exe
4140	AcroRd32.exe
4140	AcroRd32.exe
4140	AcroRd32.exe
4140	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4140 wrote to memory of 3592	4140	AcroRd32.exe	91
PID 4140 wrote to memory of 3592	4140	AcroRd32.exe	91
PID 4140 wrote to memory of 3592	4140	AcroRd32.exe	91
PID 3592 wrote to memory of 4556	3592	RdrCEF.exe	94
PID 3592 wrote to memory of 4556	3592	RdrCEF.exe	94
PID 3592 wrote to memory of 4556	3592	RdrCEF.exe	94
PID 3592 wrote to memory of 4556	3592	RdrCEF.exe	94
PID 3592 wrote to memory of 4556	3592	RdrCEF.exe	94
PID 3592 wrote to memory of 4556	3592	RdrCEF.exe	94
PID 3592 wrote to memory of 4556	3592	RdrCEF.exe	94
PID 3592 wrote to memory of 4556	3592	RdrCEF.exe	94
PID 3592 wrote to memory of 4556	3592	RdrCEF.exe	94
PID 3592 wrote to memory of 4556	3592	RdrCEF.exe	94
PID 3592 wrote to memory of 4556	3592	RdrCEF.exe	94
PID 3592 wrote to memory of 4556	3592	RdrCEF.exe	94
PID 3592 wrote to memory of 4556	3592	RdrCEF.exe	94
PID 3592 wrote to memory of 4556	3592	RdrCEF.exe	94
PID 3592 wrote to memory of 4556	3592	RdrCEF.exe	94
PID 3592 wrote to memory of 4556	3592	RdrCEF.exe	94
PID 3592 wrote to memory of 4556	3592	RdrCEF.exe	94
PID 3592 wrote to memory of 4556	3592	RdrCEF.exe	94
PID 3592 wrote to memory of 4556	3592	RdrCEF.exe	94
PID 3592 wrote to memory of 4556	3592	RdrCEF.exe	94
PID 3592 wrote to memory of 4556	3592	RdrCEF.exe	94
PID 3592 wrote to memory of 4556	3592	RdrCEF.exe	94
PID 3592 wrote to memory of 4556	3592	RdrCEF.exe	94
PID 3592 wrote to memory of 4556	3592	RdrCEF.exe	94
PID 3592 wrote to memory of 4556	3592	RdrCEF.exe	94
PID 3592 wrote to memory of 4556	3592	RdrCEF.exe	94
PID 3592 wrote to memory of 4556	3592	RdrCEF.exe	94
PID 3592 wrote to memory of 4556	3592	RdrCEF.exe	94
PID 3592 wrote to memory of 4556	3592	RdrCEF.exe	94
PID 3592 wrote to memory of 4556	3592	RdrCEF.exe	94
PID 3592 wrote to memory of 4556	3592	RdrCEF.exe	94
PID 3592 wrote to memory of 4556	3592	RdrCEF.exe	94
PID 3592 wrote to memory of 4556	3592	RdrCEF.exe	94
PID 3592 wrote to memory of 4556	3592	RdrCEF.exe	94
PID 3592 wrote to memory of 4556	3592	RdrCEF.exe	94
PID 3592 wrote to memory of 4556	3592	RdrCEF.exe	94
PID 3592 wrote to memory of 4556	3592	RdrCEF.exe	94
PID 3592 wrote to memory of 4556	3592	RdrCEF.exe	94
PID 3592 wrote to memory of 4556	3592	RdrCEF.exe	94
PID 3592 wrote to memory of 4556	3592	RdrCEF.exe	94
PID 3592 wrote to memory of 4556	3592	RdrCEF.exe	94
PID 3592 wrote to memory of 1464	3592	RdrCEF.exe	95
PID 3592 wrote to memory of 1464	3592	RdrCEF.exe	95
PID 3592 wrote to memory of 1464	3592	RdrCEF.exe	95
PID 3592 wrote to memory of 1464	3592	RdrCEF.exe	95
PID 3592 wrote to memory of 1464	3592	RdrCEF.exe	95
PID 3592 wrote to memory of 1464	3592	RdrCEF.exe	95
PID 3592 wrote to memory of 1464	3592	RdrCEF.exe	95
PID 3592 wrote to memory of 1464	3592	RdrCEF.exe	95
PID 3592 wrote to memory of 1464	3592	RdrCEF.exe	95
PID 3592 wrote to memory of 1464	3592	RdrCEF.exe	95
PID 3592 wrote to memory of 1464	3592	RdrCEF.exe	95
PID 3592 wrote to memory of 1464	3592	RdrCEF.exe	95
PID 3592 wrote to memory of 1464	3592	RdrCEF.exe	95
PID 3592 wrote to memory of 1464	3592	RdrCEF.exe	95
PID 3592 wrote to memory of 1464	3592	RdrCEF.exe	95
PID 3592 wrote to memory of 1464	3592	RdrCEF.exe	95
PID 3592 wrote to memory of 1464	3592	RdrCEF.exe	95
PID 3592 wrote to memory of 1464	3592	RdrCEF.exe	95
PID 3592 wrote to memory of 1464	3592	RdrCEF.exe	95
PID 3592 wrote to memory of 1464	3592	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\4cb9915fb308f5110b15e8087fb66396.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:4140
- 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:3592
- - 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=3D637A08EE4226EE2341DA4BDE173E15 --mojo-platform-channel-handle=1748 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4556
- - 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=BB1207F4149E53C6AFB426B1070D6DEE --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=BB1207F4149E53C6AFB426B1070D6DEE --renderer-client-id=2 --mojo-platform-channel-handle=1756 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:1464
- - 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=C68D32518CC91908D992863F50F2892A --mojo-platform-channel-handle=2316 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4792
- - 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=987FEF6B7175494DE5C87E800D25B91D --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=987FEF6B7175494DE5C87E800D25B91D --renderer-client-id=5 --mojo-platform-channel-handle=1816 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4004
- - 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=8DF44EBBFEA4642B52158B1D76D0FA8F --mojo-platform-channel-handle=2656 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4172
- - 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=E16C7F73222ACFAEA4A3C741F11817F8 --mojo-platform-channel-handle=2020 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4480

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

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Downloads

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

Filesize
64KB

MD5
d626872533b2a4becc8183a3a2e899dd

SHA1
22fc57253c27a39be8219c8b0a482156de05b731

SHA256
79869f218dc85d3b6aa1116f059ec83f1bafc3c99d675240fb11167040e85cee

SHA512
26580d2824851226c3e1ed6d1c9125163bc907852b59654c221687b9acec22aa5385664fe491aeb93a15e642fd33b88212867d65bd66611d84347edc30e14d4b

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