08df8bf5e08902d519a5723ef0a436ba56a98211c6dbe3100560e9ba2bfc79bd

Analysis

max time kernel
147s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
31/12/2023, 13:52

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General

Target

38c0fb73aa726109f2e3d5c5ef4541fc.pdf
Size

88KB
MD5

38c0fb73aa726109f2e3d5c5ef4541fc
SHA1

3d1d139a1dfb9c2f21c106e396456429a6c005fa
SHA256

08df8bf5e08902d519a5723ef0a436ba56a98211c6dbe3100560e9ba2bfc79bd
SHA512

6e917341fe0187ae73ea443fb9983f75a7053dea16216a86edf58794f268576aaf0b08e5c1382ef1e411536f02ab40d6d7563c0dc8c39e02ac48ee63039f642d
SSDEEP

1536:jJB9jNTVcEsbsDmLyr9eueFZL2A+zmgVG3rZQdxTX78O5oR00:j9hTVtsb5o9eDZF+KgVG32dh7v5oF

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-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
440	AcroRd32.exe
440	AcroRd32.exe
440	AcroRd32.exe
440	AcroRd32.exe
440	AcroRd32.exe
440	AcroRd32.exe
440	AcroRd32.exe
440	AcroRd32.exe
440	AcroRd32.exe
440	AcroRd32.exe
440	AcroRd32.exe
440	AcroRd32.exe
440	AcroRd32.exe
440	AcroRd32.exe
440	AcroRd32.exe
440	AcroRd32.exe
440	AcroRd32.exe
440	AcroRd32.exe
440	AcroRd32.exe
440	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
440	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
440	AcroRd32.exe
440	AcroRd32.exe
440	AcroRd32.exe
440	AcroRd32.exe
440	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 440 wrote to memory of 1072	440	AcroRd32.exe	93
PID 440 wrote to memory of 1072	440	AcroRd32.exe	93
PID 440 wrote to memory of 1072	440	AcroRd32.exe	93
PID 1072 wrote to memory of 820	1072	RdrCEF.exe	95
PID 1072 wrote to memory of 820	1072	RdrCEF.exe	95
PID 1072 wrote to memory of 820	1072	RdrCEF.exe	95
PID 1072 wrote to memory of 820	1072	RdrCEF.exe	95
PID 1072 wrote to memory of 820	1072	RdrCEF.exe	95
PID 1072 wrote to memory of 820	1072	RdrCEF.exe	95
PID 1072 wrote to memory of 820	1072	RdrCEF.exe	95
PID 1072 wrote to memory of 820	1072	RdrCEF.exe	95
PID 1072 wrote to memory of 820	1072	RdrCEF.exe	95
PID 1072 wrote to memory of 820	1072	RdrCEF.exe	95
PID 1072 wrote to memory of 820	1072	RdrCEF.exe	95
PID 1072 wrote to memory of 820	1072	RdrCEF.exe	95
PID 1072 wrote to memory of 820	1072	RdrCEF.exe	95
PID 1072 wrote to memory of 820	1072	RdrCEF.exe	95
PID 1072 wrote to memory of 820	1072	RdrCEF.exe	95
PID 1072 wrote to memory of 820	1072	RdrCEF.exe	95
PID 1072 wrote to memory of 820	1072	RdrCEF.exe	95
PID 1072 wrote to memory of 820	1072	RdrCEF.exe	95
PID 1072 wrote to memory of 820	1072	RdrCEF.exe	95
PID 1072 wrote to memory of 820	1072	RdrCEF.exe	95
PID 1072 wrote to memory of 820	1072	RdrCEF.exe	95
PID 1072 wrote to memory of 820	1072	RdrCEF.exe	95
PID 1072 wrote to memory of 820	1072	RdrCEF.exe	95
PID 1072 wrote to memory of 820	1072	RdrCEF.exe	95
PID 1072 wrote to memory of 820	1072	RdrCEF.exe	95
PID 1072 wrote to memory of 820	1072	RdrCEF.exe	95
PID 1072 wrote to memory of 820	1072	RdrCEF.exe	95
PID 1072 wrote to memory of 820	1072	RdrCEF.exe	95
PID 1072 wrote to memory of 820	1072	RdrCEF.exe	95
PID 1072 wrote to memory of 820	1072	RdrCEF.exe	95
PID 1072 wrote to memory of 820	1072	RdrCEF.exe	95
PID 1072 wrote to memory of 820	1072	RdrCEF.exe	95
PID 1072 wrote to memory of 820	1072	RdrCEF.exe	95
PID 1072 wrote to memory of 820	1072	RdrCEF.exe	95
PID 1072 wrote to memory of 820	1072	RdrCEF.exe	95
PID 1072 wrote to memory of 820	1072	RdrCEF.exe	95
PID 1072 wrote to memory of 820	1072	RdrCEF.exe	95
PID 1072 wrote to memory of 820	1072	RdrCEF.exe	95
PID 1072 wrote to memory of 820	1072	RdrCEF.exe	95
PID 1072 wrote to memory of 820	1072	RdrCEF.exe	95
PID 1072 wrote to memory of 820	1072	RdrCEF.exe	95
PID 1072 wrote to memory of 456	1072	RdrCEF.exe	96
PID 1072 wrote to memory of 456	1072	RdrCEF.exe	96
PID 1072 wrote to memory of 456	1072	RdrCEF.exe	96
PID 1072 wrote to memory of 456	1072	RdrCEF.exe	96
PID 1072 wrote to memory of 456	1072	RdrCEF.exe	96
PID 1072 wrote to memory of 456	1072	RdrCEF.exe	96
PID 1072 wrote to memory of 456	1072	RdrCEF.exe	96
PID 1072 wrote to memory of 456	1072	RdrCEF.exe	96
PID 1072 wrote to memory of 456	1072	RdrCEF.exe	96
PID 1072 wrote to memory of 456	1072	RdrCEF.exe	96
PID 1072 wrote to memory of 456	1072	RdrCEF.exe	96
PID 1072 wrote to memory of 456	1072	RdrCEF.exe	96
PID 1072 wrote to memory of 456	1072	RdrCEF.exe	96
PID 1072 wrote to memory of 456	1072	RdrCEF.exe	96
PID 1072 wrote to memory of 456	1072	RdrCEF.exe	96
PID 1072 wrote to memory of 456	1072	RdrCEF.exe	96
PID 1072 wrote to memory of 456	1072	RdrCEF.exe	96
PID 1072 wrote to memory of 456	1072	RdrCEF.exe	96
PID 1072 wrote to memory of 456	1072	RdrCEF.exe	96
PID 1072 wrote to memory of 456	1072	RdrCEF.exe	96

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\38c0fb73aa726109f2e3d5c5ef4541fc.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:440
- 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:1072
- - 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=FE43ADA189483F6E4CE5FF2CFC218667 --mojo-platform-channel-handle=1732 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:820
- - 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=82E24EB8D15CEA4197A8A14D4B57ED19 --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=82E24EB8D15CEA4197A8A14D4B57ED19 --renderer-client-id=2 --mojo-platform-channel-handle=1768 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:456
- - 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=19C3C1FEC36ADB345EA1E09BACF8375E --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=19C3C1FEC36ADB345EA1E09BACF8375E --renderer-client-id=4 --mojo-platform-channel-handle=2312 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:1204
- - 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=DD42886D22522A7F411BE5EBC246D046 --mojo-platform-channel-handle=2572 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1104
- - 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=F95C1E1C467EAD8840A5F20C4B0E2E6F --mojo-platform-channel-handle=2668 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:544
- - 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=048AF2A55E0B4F2276919F0CFCD0C171 --mojo-platform-channel-handle=2636 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3004

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:5012

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
f08686aee5203dc4dc9f4044492c850e

SHA1
e4b325692048911e9de78339bc590bba72d08842

SHA256
83702a26d672b2efb7a8f2f2ab8f70cdb2d0f7f2e71150b7526ee94a5bdf2db9

SHA512
f76eb7a637915dc37b43a286a8feab500e54fac65ed7930c2df3e16f6b882b6ead416eb78ea93b4e4c8e58d5bf26f0dcb2d3ff9a51b6e5c45a74917f07640a35

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