98d662d623d230f07d6d0ea23ad64eff2f79b135e9707d8dc78ac3f0362e219d

Analysis

max time kernel
154s
max time network
169s
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, 13:26

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General

Target

37f238a817e0ee0917a69a54745edb20.pdf
Size

73KB
MD5

37f238a817e0ee0917a69a54745edb20
SHA1

bfc20e012b78a09838ec9dc806ef8c3d85d056d5
SHA256

98d662d623d230f07d6d0ea23ad64eff2f79b135e9707d8dc78ac3f0362e219d
SHA512

6ed3f4197fb5e557c027d1b7be3cf221de4e986dd74028fe670e932c069f4dd326902cf9dc809247ae55463ebc9c7c9d9b72dd426f83774cbcd63da9f3a0a5a5
SSDEEP

1536:r4f5Qqe/1GICKubF5DYPTeQEwyRzLs7Wq3P4mPrv4PWQpOCWFt:8f2JNydZtYKFdHsh4mP74aCQ

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
1308	AcroRd32.exe
1308	AcroRd32.exe
1308	AcroRd32.exe
1308	AcroRd32.exe
1308	AcroRd32.exe
1308	AcroRd32.exe
1308	AcroRd32.exe
1308	AcroRd32.exe
1308	AcroRd32.exe
1308	AcroRd32.exe
1308	AcroRd32.exe
1308	AcroRd32.exe
1308	AcroRd32.exe
1308	AcroRd32.exe
1308	AcroRd32.exe
1308	AcroRd32.exe
1308	AcroRd32.exe
1308	AcroRd32.exe
1308	AcroRd32.exe
1308	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1308	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
1308	AcroRd32.exe
1308	AcroRd32.exe
1308	AcroRd32.exe
1308	AcroRd32.exe
1308	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 1308 wrote to memory of 3356	1308	AcroRd32.exe	95
PID 1308 wrote to memory of 3356	1308	AcroRd32.exe	95
PID 1308 wrote to memory of 3356	1308	AcroRd32.exe	95
PID 3356 wrote to memory of 4224	3356	RdrCEF.exe	97
PID 3356 wrote to memory of 4224	3356	RdrCEF.exe	97
PID 3356 wrote to memory of 4224	3356	RdrCEF.exe	97
PID 3356 wrote to memory of 4224	3356	RdrCEF.exe	97
PID 3356 wrote to memory of 4224	3356	RdrCEF.exe	97
PID 3356 wrote to memory of 4224	3356	RdrCEF.exe	97
PID 3356 wrote to memory of 4224	3356	RdrCEF.exe	97
PID 3356 wrote to memory of 4224	3356	RdrCEF.exe	97
PID 3356 wrote to memory of 4224	3356	RdrCEF.exe	97
PID 3356 wrote to memory of 4224	3356	RdrCEF.exe	97
PID 3356 wrote to memory of 4224	3356	RdrCEF.exe	97
PID 3356 wrote to memory of 4224	3356	RdrCEF.exe	97
PID 3356 wrote to memory of 4224	3356	RdrCEF.exe	97
PID 3356 wrote to memory of 4224	3356	RdrCEF.exe	97
PID 3356 wrote to memory of 4224	3356	RdrCEF.exe	97
PID 3356 wrote to memory of 4224	3356	RdrCEF.exe	97
PID 3356 wrote to memory of 4224	3356	RdrCEF.exe	97
PID 3356 wrote to memory of 4224	3356	RdrCEF.exe	97
PID 3356 wrote to memory of 4224	3356	RdrCEF.exe	97
PID 3356 wrote to memory of 4224	3356	RdrCEF.exe	97
PID 3356 wrote to memory of 4224	3356	RdrCEF.exe	97
PID 3356 wrote to memory of 4224	3356	RdrCEF.exe	97
PID 3356 wrote to memory of 4224	3356	RdrCEF.exe	97
PID 3356 wrote to memory of 4224	3356	RdrCEF.exe	97
PID 3356 wrote to memory of 4224	3356	RdrCEF.exe	97
PID 3356 wrote to memory of 4224	3356	RdrCEF.exe	97
PID 3356 wrote to memory of 4224	3356	RdrCEF.exe	97
PID 3356 wrote to memory of 4224	3356	RdrCEF.exe	97
PID 3356 wrote to memory of 4224	3356	RdrCEF.exe	97
PID 3356 wrote to memory of 4224	3356	RdrCEF.exe	97
PID 3356 wrote to memory of 4224	3356	RdrCEF.exe	97
PID 3356 wrote to memory of 4224	3356	RdrCEF.exe	97
PID 3356 wrote to memory of 4224	3356	RdrCEF.exe	97
PID 3356 wrote to memory of 4224	3356	RdrCEF.exe	97
PID 3356 wrote to memory of 4224	3356	RdrCEF.exe	97
PID 3356 wrote to memory of 4224	3356	RdrCEF.exe	97
PID 3356 wrote to memory of 4224	3356	RdrCEF.exe	97
PID 3356 wrote to memory of 4224	3356	RdrCEF.exe	97
PID 3356 wrote to memory of 4224	3356	RdrCEF.exe	97
PID 3356 wrote to memory of 4224	3356	RdrCEF.exe	97
PID 3356 wrote to memory of 4224	3356	RdrCEF.exe	97
PID 3356 wrote to memory of 4224	3356	RdrCEF.exe	97
PID 3356 wrote to memory of 4224	3356	RdrCEF.exe	97
PID 3356 wrote to memory of 1056	3356	RdrCEF.exe	98
PID 3356 wrote to memory of 1056	3356	RdrCEF.exe	98
PID 3356 wrote to memory of 1056	3356	RdrCEF.exe	98
PID 3356 wrote to memory of 1056	3356	RdrCEF.exe	98
PID 3356 wrote to memory of 1056	3356	RdrCEF.exe	98
PID 3356 wrote to memory of 1056	3356	RdrCEF.exe	98
PID 3356 wrote to memory of 1056	3356	RdrCEF.exe	98
PID 3356 wrote to memory of 1056	3356	RdrCEF.exe	98
PID 3356 wrote to memory of 1056	3356	RdrCEF.exe	98
PID 3356 wrote to memory of 1056	3356	RdrCEF.exe	98
PID 3356 wrote to memory of 1056	3356	RdrCEF.exe	98
PID 3356 wrote to memory of 1056	3356	RdrCEF.exe	98
PID 3356 wrote to memory of 1056	3356	RdrCEF.exe	98
PID 3356 wrote to memory of 1056	3356	RdrCEF.exe	98
PID 3356 wrote to memory of 1056	3356	RdrCEF.exe	98
PID 3356 wrote to memory of 1056	3356	RdrCEF.exe	98
PID 3356 wrote to memory of 1056	3356	RdrCEF.exe	98
PID 3356 wrote to memory of 1056	3356	RdrCEF.exe	98

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\37f238a817e0ee0917a69a54745edb20.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:1308
- 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:3356
- - 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=94D23A1C105E9ADE205C109A899FFA73 --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=94D23A1C105E9ADE205C109A899FFA73 --renderer-client-id=2 --mojo-platform-channel-handle=1696 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4224
- - 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=E4910EDF566ED4813E57E4085CFC19E7 --mojo-platform-channel-handle=2032 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1056
- - 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=94979CA0B0F21E599277F099E8B548BE --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=94979CA0B0F21E599277F099E8B548BE --renderer-client-id=4 --mojo-platform-channel-handle=2180 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:1896
- - 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=5AB5DE87A98D5D21EEB76CC1D44B2FF4 --mojo-platform-channel-handle=2556 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:5088
- - 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=1EAA8858BBB50372E483F8A2CF72C1BA --mojo-platform-channel-handle=2064 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2908
- - 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=6EB665C1CA8FFCEF7FCBB009A8460CC4 --mojo-platform-channel-handle=2648 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4968

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:3512

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
abc5d08cedf0a56d29ee893bf7dedf8f

SHA1
111416f3cc71cdf50b67b020deb3370993c94351

SHA256
f2a4c5da9406447ad502bf9d3d8a7f7bebfadb05c49f10dddd40230c4b22ac38

SHA512
a888685929b868f9f9332d973a73a65f07343dddd3aadc323f1790e949abaec0f448a754524097eeb90c6163874e0e2f4fd0a692c2e42dc404c7c09f2c072be6

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