381a02c3424c7b94f9119d39083453b4653677f10de9d6d6c6a63913c01f7571

Analysis

max time kernel
146s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
22/12/2023, 14:55

Sharing

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General

Target

cfb2e0bc3b491ff0cf8650b8414d6e67.pdf
Size

41KB
MD5

cfb2e0bc3b491ff0cf8650b8414d6e67
SHA1

cd3af64a283fe7ee71b6fce139d4ed1eb9b22bf6
SHA256

381a02c3424c7b94f9119d39083453b4653677f10de9d6d6c6a63913c01f7571
SHA512

286ef6073091afb0eb8a50c4784b5dc6c506daf6bbf105b06b3802dfcf78357211693adb7fd055205c4f848785ed8f62dcf3e25e7b28f2ffae7c45a0bf764605
SSDEEP

768:kFTERaKTyoCusXsLG7cIG9wxw2WM1XWp4DMKdo94xPgTJ3wCdSFn:+TERaKDspm9wxHXWHKdo9GY3dSFn

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-1-5-21-983843758-932321429-1636175382-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
4176	AcroRd32.exe
4176	AcroRd32.exe
4176	AcroRd32.exe
4176	AcroRd32.exe
4176	AcroRd32.exe
4176	AcroRd32.exe
4176	AcroRd32.exe
4176	AcroRd32.exe
4176	AcroRd32.exe
4176	AcroRd32.exe
4176	AcroRd32.exe
4176	AcroRd32.exe
4176	AcroRd32.exe
4176	AcroRd32.exe
4176	AcroRd32.exe
4176	AcroRd32.exe
4176	AcroRd32.exe
4176	AcroRd32.exe
4176	AcroRd32.exe
4176	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4176	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
4176	AcroRd32.exe
4176	AcroRd32.exe
4176	AcroRd32.exe
4176	AcroRd32.exe
4176	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4176 wrote to memory of 2348	4176	AcroRd32.exe	92
PID 4176 wrote to memory of 2348	4176	AcroRd32.exe	92
PID 4176 wrote to memory of 2348	4176	AcroRd32.exe	92
PID 2348 wrote to memory of 4424	2348	RdrCEF.exe	94
PID 2348 wrote to memory of 4424	2348	RdrCEF.exe	94
PID 2348 wrote to memory of 4424	2348	RdrCEF.exe	94
PID 2348 wrote to memory of 4424	2348	RdrCEF.exe	94
PID 2348 wrote to memory of 4424	2348	RdrCEF.exe	94
PID 2348 wrote to memory of 4424	2348	RdrCEF.exe	94
PID 2348 wrote to memory of 4424	2348	RdrCEF.exe	94
PID 2348 wrote to memory of 4424	2348	RdrCEF.exe	94
PID 2348 wrote to memory of 4424	2348	RdrCEF.exe	94
PID 2348 wrote to memory of 4424	2348	RdrCEF.exe	94
PID 2348 wrote to memory of 4424	2348	RdrCEF.exe	94
PID 2348 wrote to memory of 4424	2348	RdrCEF.exe	94
PID 2348 wrote to memory of 4424	2348	RdrCEF.exe	94
PID 2348 wrote to memory of 4424	2348	RdrCEF.exe	94
PID 2348 wrote to memory of 4424	2348	RdrCEF.exe	94
PID 2348 wrote to memory of 4424	2348	RdrCEF.exe	94
PID 2348 wrote to memory of 4424	2348	RdrCEF.exe	94
PID 2348 wrote to memory of 4424	2348	RdrCEF.exe	94
PID 2348 wrote to memory of 4424	2348	RdrCEF.exe	94
PID 2348 wrote to memory of 4424	2348	RdrCEF.exe	94
PID 2348 wrote to memory of 4424	2348	RdrCEF.exe	94
PID 2348 wrote to memory of 4424	2348	RdrCEF.exe	94
PID 2348 wrote to memory of 4424	2348	RdrCEF.exe	94
PID 2348 wrote to memory of 4424	2348	RdrCEF.exe	94
PID 2348 wrote to memory of 4424	2348	RdrCEF.exe	94
PID 2348 wrote to memory of 4424	2348	RdrCEF.exe	94
PID 2348 wrote to memory of 4424	2348	RdrCEF.exe	94
PID 2348 wrote to memory of 4424	2348	RdrCEF.exe	94
PID 2348 wrote to memory of 4424	2348	RdrCEF.exe	94
PID 2348 wrote to memory of 4424	2348	RdrCEF.exe	94
PID 2348 wrote to memory of 4424	2348	RdrCEF.exe	94
PID 2348 wrote to memory of 4424	2348	RdrCEF.exe	94
PID 2348 wrote to memory of 4424	2348	RdrCEF.exe	94
PID 2348 wrote to memory of 4424	2348	RdrCEF.exe	94
PID 2348 wrote to memory of 4424	2348	RdrCEF.exe	94
PID 2348 wrote to memory of 4424	2348	RdrCEF.exe	94
PID 2348 wrote to memory of 4424	2348	RdrCEF.exe	94
PID 2348 wrote to memory of 4424	2348	RdrCEF.exe	94
PID 2348 wrote to memory of 4424	2348	RdrCEF.exe	94
PID 2348 wrote to memory of 4424	2348	RdrCEF.exe	94
PID 2348 wrote to memory of 4424	2348	RdrCEF.exe	94
PID 2348 wrote to memory of 4424	2348	RdrCEF.exe	94
PID 2348 wrote to memory of 4424	2348	RdrCEF.exe	94
PID 2348 wrote to memory of 1000	2348	RdrCEF.exe	93
PID 2348 wrote to memory of 1000	2348	RdrCEF.exe	93
PID 2348 wrote to memory of 1000	2348	RdrCEF.exe	93
PID 2348 wrote to memory of 1000	2348	RdrCEF.exe	93
PID 2348 wrote to memory of 1000	2348	RdrCEF.exe	93
PID 2348 wrote to memory of 1000	2348	RdrCEF.exe	93
PID 2348 wrote to memory of 1000	2348	RdrCEF.exe	93
PID 2348 wrote to memory of 1000	2348	RdrCEF.exe	93
PID 2348 wrote to memory of 1000	2348	RdrCEF.exe	93
PID 2348 wrote to memory of 1000	2348	RdrCEF.exe	93
PID 2348 wrote to memory of 1000	2348	RdrCEF.exe	93
PID 2348 wrote to memory of 1000	2348	RdrCEF.exe	93
PID 2348 wrote to memory of 1000	2348	RdrCEF.exe	93
PID 2348 wrote to memory of 1000	2348	RdrCEF.exe	93
PID 2348 wrote to memory of 1000	2348	RdrCEF.exe	93
PID 2348 wrote to memory of 1000	2348	RdrCEF.exe	93
PID 2348 wrote to memory of 1000	2348	RdrCEF.exe	93
PID 2348 wrote to memory of 1000	2348	RdrCEF.exe	93

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\cfb2e0bc3b491ff0cf8650b8414d6e67.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:4176
- 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:2348
- - 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=B8D5C1E1F1ED3C558C939B41C40E0148 --mojo-platform-channel-handle=1800 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1000
- - 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=458D0D96AD749A174D1CA74E8AC39E2F --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=458D0D96AD749A174D1CA74E8AC39E2F --renderer-client-id=2 --mojo-platform-channel-handle=1752 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4424
- - 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=E0E593ED6242C5B6D5C9E4FB88EB7BFA --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=E0E593ED6242C5B6D5C9E4FB88EB7BFA --renderer-client-id=5 --mojo-platform-channel-handle=1796 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4308
- - 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=02C5C823835FAF549C89F67620ED6BB1 --mojo-platform-channel-handle=2308 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4988
- - 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=ECFA73A71E38A574294D6CFFD0713D00 --mojo-platform-channel-handle=2560 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:980
- - 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=4517E1FBE58211EC3C55249422D78CA1 --mojo-platform-channel-handle=2324 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:672

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:968

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
d0a98ef65bee3f48d6a49cb33b4e5965

SHA1
24f40bf4002ac1a9f4ebe78c45bcfd3bc5feaf13

SHA256
66ba9b8fb49de7673be106beedeeefdce347d79d613d955b12c329623b02fa36

SHA512
b2187770d188c062658889b281d63824be66e219e8aeb20e77295a7fc59f1d127d88fe10d3e5c2da3aada1e0aeb59aace8f32b0a4148ece753005798869f8be6

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
memory/4176-28-0x0000000009CE0000-0x0000000009D01000-memory.dmp

Filesize
132KB

Download