3322f24e7b9bb66050d3031fff67b6605404285c0e8d22d593dd3e82a175a0c4

Analysis

max time kernel
182s
max time network
188s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
04/01/2024, 16:25

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General

Target

4157f855c395041be4dfa0b3cc051661.pdf
Size

85KB
MD5

4157f855c395041be4dfa0b3cc051661
SHA1

a3451f160b2d1185d03667ac9c3b613ee61e55bc
SHA256

3322f24e7b9bb66050d3031fff67b6605404285c0e8d22d593dd3e82a175a0c4
SHA512

e4ee3a80da1e1672c975647c95923a48f5558288f81b25e55a3e8e6fb666361da5d3a9a236ec8af3638727171fcd6b3fe90fccbeceebf5a65bc28254557567d5
SSDEEP

1536:gT0Ar6dmEQQ2FRbeM8Z5Vop3qYQH2mnXFvxbUBWypOlWWxb/STsdNGHf8O3I:SnWm9PFRbEdMQWmnXF3lDDSKEHG

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
4408	AcroRd32.exe
4408	AcroRd32.exe
4408	AcroRd32.exe
4408	AcroRd32.exe
4408	AcroRd32.exe
4408	AcroRd32.exe
4408	AcroRd32.exe
4408	AcroRd32.exe
4408	AcroRd32.exe
4408	AcroRd32.exe
4408	AcroRd32.exe
4408	AcroRd32.exe
4408	AcroRd32.exe
4408	AcroRd32.exe
4408	AcroRd32.exe
4408	AcroRd32.exe
4408	AcroRd32.exe
4408	AcroRd32.exe
4408	AcroRd32.exe
4408	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4408	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
4408	AcroRd32.exe
4408	AcroRd32.exe
4408	AcroRd32.exe
4408	AcroRd32.exe
4408	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4408 wrote to memory of 3296	4408	AcroRd32.exe	93
PID 4408 wrote to memory of 3296	4408	AcroRd32.exe	93
PID 4408 wrote to memory of 3296	4408	AcroRd32.exe	93
PID 3296 wrote to memory of 2840	3296	RdrCEF.exe	94
PID 3296 wrote to memory of 2840	3296	RdrCEF.exe	94
PID 3296 wrote to memory of 2840	3296	RdrCEF.exe	94
PID 3296 wrote to memory of 2840	3296	RdrCEF.exe	94
PID 3296 wrote to memory of 2840	3296	RdrCEF.exe	94
PID 3296 wrote to memory of 2840	3296	RdrCEF.exe	94
PID 3296 wrote to memory of 2840	3296	RdrCEF.exe	94
PID 3296 wrote to memory of 2840	3296	RdrCEF.exe	94
PID 3296 wrote to memory of 2840	3296	RdrCEF.exe	94
PID 3296 wrote to memory of 2840	3296	RdrCEF.exe	94
PID 3296 wrote to memory of 2840	3296	RdrCEF.exe	94
PID 3296 wrote to memory of 2840	3296	RdrCEF.exe	94
PID 3296 wrote to memory of 2840	3296	RdrCEF.exe	94
PID 3296 wrote to memory of 2840	3296	RdrCEF.exe	94
PID 3296 wrote to memory of 2840	3296	RdrCEF.exe	94
PID 3296 wrote to memory of 2840	3296	RdrCEF.exe	94
PID 3296 wrote to memory of 2840	3296	RdrCEF.exe	94
PID 3296 wrote to memory of 2840	3296	RdrCEF.exe	94
PID 3296 wrote to memory of 2840	3296	RdrCEF.exe	94
PID 3296 wrote to memory of 2840	3296	RdrCEF.exe	94
PID 3296 wrote to memory of 2840	3296	RdrCEF.exe	94
PID 3296 wrote to memory of 2840	3296	RdrCEF.exe	94
PID 3296 wrote to memory of 2840	3296	RdrCEF.exe	94
PID 3296 wrote to memory of 2840	3296	RdrCEF.exe	94
PID 3296 wrote to memory of 2840	3296	RdrCEF.exe	94
PID 3296 wrote to memory of 2840	3296	RdrCEF.exe	94
PID 3296 wrote to memory of 2840	3296	RdrCEF.exe	94
PID 3296 wrote to memory of 2840	3296	RdrCEF.exe	94
PID 3296 wrote to memory of 2840	3296	RdrCEF.exe	94
PID 3296 wrote to memory of 2840	3296	RdrCEF.exe	94
PID 3296 wrote to memory of 2840	3296	RdrCEF.exe	94
PID 3296 wrote to memory of 2840	3296	RdrCEF.exe	94
PID 3296 wrote to memory of 2840	3296	RdrCEF.exe	94
PID 3296 wrote to memory of 2840	3296	RdrCEF.exe	94
PID 3296 wrote to memory of 2840	3296	RdrCEF.exe	94
PID 3296 wrote to memory of 2840	3296	RdrCEF.exe	94
PID 3296 wrote to memory of 2840	3296	RdrCEF.exe	94
PID 3296 wrote to memory of 2840	3296	RdrCEF.exe	94
PID 3296 wrote to memory of 2840	3296	RdrCEF.exe	94
PID 3296 wrote to memory of 2840	3296	RdrCEF.exe	94
PID 3296 wrote to memory of 2840	3296	RdrCEF.exe	94
PID 3296 wrote to memory of 3600	3296	RdrCEF.exe	95
PID 3296 wrote to memory of 3600	3296	RdrCEF.exe	95
PID 3296 wrote to memory of 3600	3296	RdrCEF.exe	95
PID 3296 wrote to memory of 3600	3296	RdrCEF.exe	95
PID 3296 wrote to memory of 3600	3296	RdrCEF.exe	95
PID 3296 wrote to memory of 3600	3296	RdrCEF.exe	95
PID 3296 wrote to memory of 3600	3296	RdrCEF.exe	95
PID 3296 wrote to memory of 3600	3296	RdrCEF.exe	95
PID 3296 wrote to memory of 3600	3296	RdrCEF.exe	95
PID 3296 wrote to memory of 3600	3296	RdrCEF.exe	95
PID 3296 wrote to memory of 3600	3296	RdrCEF.exe	95
PID 3296 wrote to memory of 3600	3296	RdrCEF.exe	95
PID 3296 wrote to memory of 3600	3296	RdrCEF.exe	95
PID 3296 wrote to memory of 3600	3296	RdrCEF.exe	95
PID 3296 wrote to memory of 3600	3296	RdrCEF.exe	95
PID 3296 wrote to memory of 3600	3296	RdrCEF.exe	95
PID 3296 wrote to memory of 3600	3296	RdrCEF.exe	95
PID 3296 wrote to memory of 3600	3296	RdrCEF.exe	95
PID 3296 wrote to memory of 3600	3296	RdrCEF.exe	95
PID 3296 wrote to memory of 3600	3296	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\4157f855c395041be4dfa0b3cc051661.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:4408
- 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:3296
- - 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=AA3B7F610B2D4E40C1F0940EB372D3E4 --mojo-platform-channel-handle=1740 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2840
- - 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=BCCFB9876A4BDA9700D2457948AB95F8 --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=BCCFB9876A4BDA9700D2457948AB95F8 --renderer-client-id=2 --mojo-platform-channel-handle=1748 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:3600
- - 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=AE0774225913237B7D137242176B5BE8 --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=AE0774225913237B7D137242176B5BE8 --renderer-client-id=4 --mojo-platform-channel-handle=2152 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:1592
- - 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=3947D4BDA1D856AA2D59E73FD5E67EA3 --mojo-platform-channel-handle=2556 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3068
- - 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=B38D1DEFC679631B193031B340C788F6 --mojo-platform-channel-handle=1792 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3584
- - 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=0AB5AEE2AFC7133D6996D83E6174B061 --mojo-platform-channel-handle=1928 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3828

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:3984

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
f68c228b06d51d9ecdf33049754c597b

SHA1
cd25614e74f288ef68cbb156ea2f066dfc14720d

SHA256
7568f5967c5337857bf31fae31510098d9754d2447fe0d8fc7e8b8f9e1088a35

SHA512
db69801cdd2c894f37e4170a3da26c17c33ff9aa0ad84afc4283e6d5dd54d5ceba61ca370e1bf083fd7115538ced1bbd20b0f74cf1c204a17a3c326880167432

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