4781c2fc022a489cb0b061af7308dbe0aa7588a6ce539e12acdde5038be21ede

Analysis

max time kernel
4s
max time network
143s
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 17:48

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General

Target

3aac4420a906767b7c06f1fbadac5742.pdf
Size

113KB
MD5

3aac4420a906767b7c06f1fbadac5742
SHA1

b27a946f8e7d6bf0b2e951cb12dfb4d234c05101
SHA256

4781c2fc022a489cb0b061af7308dbe0aa7588a6ce539e12acdde5038be21ede
SHA512

76dfae7722dc8a5e1fb129cc129bb28e0bc4ae1b91537dcb4cece3ec3855483b52b93a5df3e41b2388d62e78a21c75735e5458c7df3e58d1e9269e6c5f79314b
SSDEEP

3072:OMmzOSFzqpc9qB1lX3MaCJ0Mu2DLjIULB7oc7xme:OMmzLN+c9qGfLhVVt

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-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1852	AcroRd32.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1852	AcroRd32.exe
1852	AcroRd32.exe
1852	AcroRd32.exe
1852	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 1852 wrote to memory of 3220	1852	AcroRd32.exe	94
PID 1852 wrote to memory of 3220	1852	AcroRd32.exe	94
PID 1852 wrote to memory of 3220	1852	AcroRd32.exe	94
PID 3220 wrote to memory of 3584	3220	RdrCEF.exe	98
PID 3220 wrote to memory of 3584	3220	RdrCEF.exe	98
PID 3220 wrote to memory of 3584	3220	RdrCEF.exe	98
PID 3220 wrote to memory of 3584	3220	RdrCEF.exe	98
PID 3220 wrote to memory of 3584	3220	RdrCEF.exe	98
PID 3220 wrote to memory of 3584	3220	RdrCEF.exe	98
PID 3220 wrote to memory of 3584	3220	RdrCEF.exe	98
PID 3220 wrote to memory of 3584	3220	RdrCEF.exe	98
PID 3220 wrote to memory of 3584	3220	RdrCEF.exe	98
PID 3220 wrote to memory of 3584	3220	RdrCEF.exe	98
PID 3220 wrote to memory of 3584	3220	RdrCEF.exe	98
PID 3220 wrote to memory of 3584	3220	RdrCEF.exe	98
PID 3220 wrote to memory of 3584	3220	RdrCEF.exe	98
PID 3220 wrote to memory of 3584	3220	RdrCEF.exe	98
PID 3220 wrote to memory of 3584	3220	RdrCEF.exe	98
PID 3220 wrote to memory of 3584	3220	RdrCEF.exe	98
PID 3220 wrote to memory of 3584	3220	RdrCEF.exe	98
PID 3220 wrote to memory of 3584	3220	RdrCEF.exe	98
PID 3220 wrote to memory of 3584	3220	RdrCEF.exe	98
PID 3220 wrote to memory of 3584	3220	RdrCEF.exe	98
PID 3220 wrote to memory of 3584	3220	RdrCEF.exe	98
PID 3220 wrote to memory of 3584	3220	RdrCEF.exe	98
PID 3220 wrote to memory of 3584	3220	RdrCEF.exe	98
PID 3220 wrote to memory of 3584	3220	RdrCEF.exe	98
PID 3220 wrote to memory of 3584	3220	RdrCEF.exe	98
PID 3220 wrote to memory of 3584	3220	RdrCEF.exe	98
PID 3220 wrote to memory of 3584	3220	RdrCEF.exe	98
PID 3220 wrote to memory of 3584	3220	RdrCEF.exe	98
PID 3220 wrote to memory of 3584	3220	RdrCEF.exe	98
PID 3220 wrote to memory of 3584	3220	RdrCEF.exe	98
PID 3220 wrote to memory of 3584	3220	RdrCEF.exe	98
PID 3220 wrote to memory of 3584	3220	RdrCEF.exe	98
PID 3220 wrote to memory of 3584	3220	RdrCEF.exe	98
PID 3220 wrote to memory of 3584	3220	RdrCEF.exe	98
PID 3220 wrote to memory of 3584	3220	RdrCEF.exe	98
PID 3220 wrote to memory of 3584	3220	RdrCEF.exe	98
PID 3220 wrote to memory of 3584	3220	RdrCEF.exe	98
PID 3220 wrote to memory of 3584	3220	RdrCEF.exe	98
PID 3220 wrote to memory of 3584	3220	RdrCEF.exe	98
PID 3220 wrote to memory of 3584	3220	RdrCEF.exe	98
PID 3220 wrote to memory of 3584	3220	RdrCEF.exe	98
PID 3220 wrote to memory of 1692	3220	RdrCEF.exe	97
PID 3220 wrote to memory of 1692	3220	RdrCEF.exe	97
PID 3220 wrote to memory of 1692	3220	RdrCEF.exe	97
PID 3220 wrote to memory of 1692	3220	RdrCEF.exe	97
PID 3220 wrote to memory of 1692	3220	RdrCEF.exe	97
PID 3220 wrote to memory of 1692	3220	RdrCEF.exe	97
PID 3220 wrote to memory of 1692	3220	RdrCEF.exe	97
PID 3220 wrote to memory of 1692	3220	RdrCEF.exe	97
PID 3220 wrote to memory of 1692	3220	RdrCEF.exe	97
PID 3220 wrote to memory of 1692	3220	RdrCEF.exe	97
PID 3220 wrote to memory of 1692	3220	RdrCEF.exe	97
PID 3220 wrote to memory of 1692	3220	RdrCEF.exe	97
PID 3220 wrote to memory of 1692	3220	RdrCEF.exe	97
PID 3220 wrote to memory of 1692	3220	RdrCEF.exe	97
PID 3220 wrote to memory of 1692	3220	RdrCEF.exe	97
PID 3220 wrote to memory of 1692	3220	RdrCEF.exe	97
PID 3220 wrote to memory of 1692	3220	RdrCEF.exe	97
PID 3220 wrote to memory of 1692	3220	RdrCEF.exe	97
PID 3220 wrote to memory of 1692	3220	RdrCEF.exe	97
PID 3220 wrote to memory of 1692	3220	RdrCEF.exe	97

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\3aac4420a906767b7c06f1fbadac5742.pdf"
1⤵
- Checks processor information in registry
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1852
- 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:3220
- - 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=26D68FEA6B1C5C40194E580A11A01ACC --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=26D68FEA6B1C5C40194E580A11A01ACC --renderer-client-id=2 --mojo-platform-channel-handle=1748 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:1692
- - 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=86D810B1F7F45D6910ABDD1EE804B388 --mojo-platform-channel-handle=1740 --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=B0AD58D1863AC5C5164E876CD85EF250 --mojo-platform-channel-handle=2284 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4164
- - 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=435BA0B907FB881EA15D91D828EA6DE4 --mojo-platform-channel-handle=2412 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4912
- - 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=0D76177975EFA46A2A9FC095358ADB0F --mojo-platform-channel-handle=2368 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4584
- - 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=217DEBA0AA4810FB554A5B0B14D9853F --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=217DEBA0AA4810FB554A5B0B14D9853F --renderer-client-id=8 --mojo-platform-channel-handle=1716 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:412

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:2540

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
a74f9746e27c482232b6ccb67d66fc21

SHA1
d74ae01bbc7ea9e73ad90de2bc3686b4fd3d2066

SHA256
8a391df0717dbb46c10fcd04fd0b8e7df999bae7d4395b9c020e3b11d0cc1cad

SHA512
188ce9064c9a551efa9277cf7ed1cf01b57a7369df30884bfcbf8e8229b64dd71c1eb686f60ede4c4f202e0265590f28e7aa2234402632e336322d452c7107a8

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
16KB

MD5
a0577ad7e54809a8569ddb2d0cadcb70

SHA1
a44c71905e8ad01c8d7321d6fe9fc2c5532a2be9

SHA256
99aaf948950b6d3c1124cb4ccf43b0874583e559fc73bc1cdff614333e68c0fb

SHA512
a891dd610c64bd80629b9a336ba1f7e0aaf96f080e5363e7e469e57d55b092b04e80ba85db3c27055a215bd3e0726836660828f98bad146bc081496cfa4d9011

Download Submit
memory/1852-27-0x000000000C080000-0x000000000C0A1000-memory.dmp

Filesize
132KB

Download