34ed94e5b3733899e8c2c59ce3ff9c5b7e1ab6005d54e39a83de57f92c049fbc

Analysis

max time kernel
141s
max time network
127s
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, 12:51

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General

Target

8f8a3a105ff95158348db9e80974cfa8.pdf
Size

71KB
MD5

8f8a3a105ff95158348db9e80974cfa8
SHA1

46bd1591fea2e45a81f109ecc3215b8ec0fac279
SHA256

34ed94e5b3733899e8c2c59ce3ff9c5b7e1ab6005d54e39a83de57f92c049fbc
SHA512

58afc49e0cc090fda2d2950785d2e44e43158dc92d278d47de1ab8eae6d1f77dce0aae89925c48445f720056ed9c55a2dc6a775d95c8e20980ae6696fb2e80fd
SSDEEP

1536:Qhgl40IF4iEC8qVE67C+mUiAagdEZ7WTKkb+mbyAWLdVYypO/mH:H40IaCVp7CRIagCZ7GlcdVYIOO

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-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
4856	AcroRd32.exe
4856	AcroRd32.exe
4856	AcroRd32.exe
4856	AcroRd32.exe
4856	AcroRd32.exe
4856	AcroRd32.exe
4856	AcroRd32.exe
4856	AcroRd32.exe
4856	AcroRd32.exe
4856	AcroRd32.exe
4856	AcroRd32.exe
4856	AcroRd32.exe
4856	AcroRd32.exe
4856	AcroRd32.exe
4856	AcroRd32.exe
4856	AcroRd32.exe
4856	AcroRd32.exe
4856	AcroRd32.exe
4856	AcroRd32.exe
4856	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4856	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
4856	AcroRd32.exe
4856	AcroRd32.exe
4856	AcroRd32.exe
4856	AcroRd32.exe
4856	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4856 wrote to memory of 4688	4856	AcroRd32.exe	95
PID 4856 wrote to memory of 4688	4856	AcroRd32.exe	95
PID 4856 wrote to memory of 4688	4856	AcroRd32.exe	95
PID 4688 wrote to memory of 4008	4688	RdrCEF.exe	97
PID 4688 wrote to memory of 4008	4688	RdrCEF.exe	97
PID 4688 wrote to memory of 4008	4688	RdrCEF.exe	97
PID 4688 wrote to memory of 4008	4688	RdrCEF.exe	97
PID 4688 wrote to memory of 4008	4688	RdrCEF.exe	97
PID 4688 wrote to memory of 4008	4688	RdrCEF.exe	97
PID 4688 wrote to memory of 4008	4688	RdrCEF.exe	97
PID 4688 wrote to memory of 4008	4688	RdrCEF.exe	97
PID 4688 wrote to memory of 4008	4688	RdrCEF.exe	97
PID 4688 wrote to memory of 4008	4688	RdrCEF.exe	97
PID 4688 wrote to memory of 4008	4688	RdrCEF.exe	97
PID 4688 wrote to memory of 4008	4688	RdrCEF.exe	97
PID 4688 wrote to memory of 4008	4688	RdrCEF.exe	97
PID 4688 wrote to memory of 4008	4688	RdrCEF.exe	97
PID 4688 wrote to memory of 4008	4688	RdrCEF.exe	97
PID 4688 wrote to memory of 4008	4688	RdrCEF.exe	97
PID 4688 wrote to memory of 4008	4688	RdrCEF.exe	97
PID 4688 wrote to memory of 4008	4688	RdrCEF.exe	97
PID 4688 wrote to memory of 4008	4688	RdrCEF.exe	97
PID 4688 wrote to memory of 4008	4688	RdrCEF.exe	97
PID 4688 wrote to memory of 4008	4688	RdrCEF.exe	97
PID 4688 wrote to memory of 4008	4688	RdrCEF.exe	97
PID 4688 wrote to memory of 4008	4688	RdrCEF.exe	97
PID 4688 wrote to memory of 4008	4688	RdrCEF.exe	97
PID 4688 wrote to memory of 4008	4688	RdrCEF.exe	97
PID 4688 wrote to memory of 4008	4688	RdrCEF.exe	97
PID 4688 wrote to memory of 4008	4688	RdrCEF.exe	97
PID 4688 wrote to memory of 4008	4688	RdrCEF.exe	97
PID 4688 wrote to memory of 4008	4688	RdrCEF.exe	97
PID 4688 wrote to memory of 4008	4688	RdrCEF.exe	97
PID 4688 wrote to memory of 4008	4688	RdrCEF.exe	97
PID 4688 wrote to memory of 4008	4688	RdrCEF.exe	97
PID 4688 wrote to memory of 4008	4688	RdrCEF.exe	97
PID 4688 wrote to memory of 4008	4688	RdrCEF.exe	97
PID 4688 wrote to memory of 4008	4688	RdrCEF.exe	97
PID 4688 wrote to memory of 4008	4688	RdrCEF.exe	97
PID 4688 wrote to memory of 4008	4688	RdrCEF.exe	97
PID 4688 wrote to memory of 4008	4688	RdrCEF.exe	97
PID 4688 wrote to memory of 4008	4688	RdrCEF.exe	97
PID 4688 wrote to memory of 4008	4688	RdrCEF.exe	97
PID 4688 wrote to memory of 4008	4688	RdrCEF.exe	97
PID 4688 wrote to memory of 4536	4688	RdrCEF.exe	96
PID 4688 wrote to memory of 4536	4688	RdrCEF.exe	96
PID 4688 wrote to memory of 4536	4688	RdrCEF.exe	96
PID 4688 wrote to memory of 4536	4688	RdrCEF.exe	96
PID 4688 wrote to memory of 4536	4688	RdrCEF.exe	96
PID 4688 wrote to memory of 4536	4688	RdrCEF.exe	96
PID 4688 wrote to memory of 4536	4688	RdrCEF.exe	96
PID 4688 wrote to memory of 4536	4688	RdrCEF.exe	96
PID 4688 wrote to memory of 4536	4688	RdrCEF.exe	96
PID 4688 wrote to memory of 4536	4688	RdrCEF.exe	96
PID 4688 wrote to memory of 4536	4688	RdrCEF.exe	96
PID 4688 wrote to memory of 4536	4688	RdrCEF.exe	96
PID 4688 wrote to memory of 4536	4688	RdrCEF.exe	96
PID 4688 wrote to memory of 4536	4688	RdrCEF.exe	96
PID 4688 wrote to memory of 4536	4688	RdrCEF.exe	96
PID 4688 wrote to memory of 4536	4688	RdrCEF.exe	96
PID 4688 wrote to memory of 4536	4688	RdrCEF.exe	96
PID 4688 wrote to memory of 4536	4688	RdrCEF.exe	96
PID 4688 wrote to memory of 4536	4688	RdrCEF.exe	96
PID 4688 wrote to memory of 4536	4688	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\8f8a3a105ff95158348db9e80974cfa8.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:4856
- 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:4688
- - 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=39335BED13109F1122A546A8E07D5DF8 --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=39335BED13109F1122A546A8E07D5DF8 --renderer-client-id=2 --mojo-platform-channel-handle=1752 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4536
- - 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=D7AEAE36182EFFB9F55242B715B56E1C --mojo-platform-channel-handle=1740 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4008
- - 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=9D5E3839AEBD188CD4C75655E833121A --mojo-platform-channel-handle=2296 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1608
- - 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=F8E281680EBBCE704614A30A3AB491B1 --mojo-platform-channel-handle=1856 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2980
- - 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=724EBC2959075B9CD483C1C9FC3ED3E4 --mojo-platform-channel-handle=2308 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1100
- - 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=12B71A0C9618AADD24A37598FDC73EF5 --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=12B71A0C9618AADD24A37598FDC73EF5 --renderer-client-id=8 --mojo-platform-channel-handle=1924 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:2420

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:3620

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

Loading Replay Monitor...

Downloads

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

Filesize
64KB

MD5
29a0bef5e0a8157f57df57570f3ccab4

SHA1
a707d702a9f15c56db78c3fbe390857c3fb86135

SHA256
128bcc72361c457a2c429e96873141c8a1a9d35b2ef46fd308a1bf23dcc3e575

SHA512
2f5a4b3b2b0800fa0c328021b9f4b053a8acc0c868bc33e56dd4c3416eae56c5eb3ab486ebd923c6f7a2fa5627707aef84316f80f87c8e181c7ff0576b2a0281

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