1b16b707df425d72ec8a3367ad92736ec65c22c5cba5d29444c6e771b3a415aa

Analysis

max time kernel
147s
max time network
109s
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 05:16

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General

Target

299e896f7367b9681582c6c3a1c95208.pdf
Size

3KB
MD5

299e896f7367b9681582c6c3a1c95208
SHA1

81ccc7c46212dc4e57d96ee8822132ca6da06592
SHA256

1b16b707df425d72ec8a3367ad92736ec65c22c5cba5d29444c6e771b3a415aa
SHA512

4d0d9ac19fbef8bb02d32ff6c16ba09ac80cc684013a3ef70e736e85f93ba769c219562c668110e28a8d23de8dae8bd77bd7543886b92f8381818371441834fd

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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	AcroRd32.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	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
4980	AcroRd32.exe
4980	AcroRd32.exe
4980	AcroRd32.exe
4980	AcroRd32.exe
4980	AcroRd32.exe
4980	AcroRd32.exe
4980	AcroRd32.exe
4980	AcroRd32.exe
4980	AcroRd32.exe
4980	AcroRd32.exe
4980	AcroRd32.exe
4980	AcroRd32.exe
4980	AcroRd32.exe
4980	AcroRd32.exe
4980	AcroRd32.exe
4980	AcroRd32.exe
4980	AcroRd32.exe
4980	AcroRd32.exe
4980	AcroRd32.exe
4980	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4980	AcroRd32.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
4980	AcroRd32.exe
4980	AcroRd32.exe
4980	AcroRd32.exe
4980	AcroRd32.exe
4980	AcroRd32.exe
4980	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4980 wrote to memory of 1788	4980	AcroRd32.exe	92
PID 4980 wrote to memory of 1788	4980	AcroRd32.exe	92
PID 4980 wrote to memory of 1788	4980	AcroRd32.exe	92
PID 1788 wrote to memory of 1452	1788	RdrCEF.exe	93
PID 1788 wrote to memory of 1452	1788	RdrCEF.exe	93
PID 1788 wrote to memory of 1452	1788	RdrCEF.exe	93
PID 1788 wrote to memory of 1452	1788	RdrCEF.exe	93
PID 1788 wrote to memory of 1452	1788	RdrCEF.exe	93
PID 1788 wrote to memory of 1452	1788	RdrCEF.exe	93
PID 1788 wrote to memory of 1452	1788	RdrCEF.exe	93
PID 1788 wrote to memory of 1452	1788	RdrCEF.exe	93
PID 1788 wrote to memory of 1452	1788	RdrCEF.exe	93
PID 1788 wrote to memory of 1452	1788	RdrCEF.exe	93
PID 1788 wrote to memory of 1452	1788	RdrCEF.exe	93
PID 1788 wrote to memory of 1452	1788	RdrCEF.exe	93
PID 1788 wrote to memory of 1452	1788	RdrCEF.exe	93
PID 1788 wrote to memory of 1452	1788	RdrCEF.exe	93
PID 1788 wrote to memory of 1452	1788	RdrCEF.exe	93
PID 1788 wrote to memory of 1452	1788	RdrCEF.exe	93
PID 1788 wrote to memory of 1452	1788	RdrCEF.exe	93
PID 1788 wrote to memory of 1452	1788	RdrCEF.exe	93
PID 1788 wrote to memory of 1452	1788	RdrCEF.exe	93
PID 1788 wrote to memory of 1452	1788	RdrCEF.exe	93
PID 1788 wrote to memory of 1452	1788	RdrCEF.exe	93
PID 1788 wrote to memory of 1452	1788	RdrCEF.exe	93
PID 1788 wrote to memory of 1452	1788	RdrCEF.exe	93
PID 1788 wrote to memory of 1452	1788	RdrCEF.exe	93
PID 1788 wrote to memory of 1452	1788	RdrCEF.exe	93
PID 1788 wrote to memory of 1452	1788	RdrCEF.exe	93
PID 1788 wrote to memory of 1452	1788	RdrCEF.exe	93
PID 1788 wrote to memory of 1452	1788	RdrCEF.exe	93
PID 1788 wrote to memory of 1452	1788	RdrCEF.exe	93
PID 1788 wrote to memory of 1452	1788	RdrCEF.exe	93
PID 1788 wrote to memory of 1452	1788	RdrCEF.exe	93
PID 1788 wrote to memory of 1452	1788	RdrCEF.exe	93
PID 1788 wrote to memory of 1452	1788	RdrCEF.exe	93
PID 1788 wrote to memory of 1452	1788	RdrCEF.exe	93
PID 1788 wrote to memory of 1452	1788	RdrCEF.exe	93
PID 1788 wrote to memory of 1452	1788	RdrCEF.exe	93
PID 1788 wrote to memory of 1452	1788	RdrCEF.exe	93
PID 1788 wrote to memory of 1452	1788	RdrCEF.exe	93
PID 1788 wrote to memory of 1452	1788	RdrCEF.exe	93
PID 1788 wrote to memory of 1452	1788	RdrCEF.exe	93
PID 1788 wrote to memory of 1452	1788	RdrCEF.exe	93
PID 1788 wrote to memory of 3336	1788	RdrCEF.exe	94
PID 1788 wrote to memory of 3336	1788	RdrCEF.exe	94
PID 1788 wrote to memory of 3336	1788	RdrCEF.exe	94
PID 1788 wrote to memory of 3336	1788	RdrCEF.exe	94
PID 1788 wrote to memory of 3336	1788	RdrCEF.exe	94
PID 1788 wrote to memory of 3336	1788	RdrCEF.exe	94
PID 1788 wrote to memory of 3336	1788	RdrCEF.exe	94
PID 1788 wrote to memory of 3336	1788	RdrCEF.exe	94
PID 1788 wrote to memory of 3336	1788	RdrCEF.exe	94
PID 1788 wrote to memory of 3336	1788	RdrCEF.exe	94
PID 1788 wrote to memory of 3336	1788	RdrCEF.exe	94
PID 1788 wrote to memory of 3336	1788	RdrCEF.exe	94
PID 1788 wrote to memory of 3336	1788	RdrCEF.exe	94
PID 1788 wrote to memory of 3336	1788	RdrCEF.exe	94
PID 1788 wrote to memory of 3336	1788	RdrCEF.exe	94
PID 1788 wrote to memory of 3336	1788	RdrCEF.exe	94
PID 1788 wrote to memory of 3336	1788	RdrCEF.exe	94
PID 1788 wrote to memory of 3336	1788	RdrCEF.exe	94
PID 1788 wrote to memory of 3336	1788	RdrCEF.exe	94
PID 1788 wrote to memory of 3336	1788	RdrCEF.exe	94

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\299e896f7367b9681582c6c3a1c95208.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:4980
- 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:1788
- - 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=12DAE2E98E220BDAF1F34B1D3326F9BC --mojo-platform-channel-handle=1740 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1452
- - 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=DF94928804DE8D8D2577D72753D67D31 --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=DF94928804DE8D8D2577D72753D67D31 --renderer-client-id=2 --mojo-platform-channel-handle=1752 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:3336
- - 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=92603736B8D9E7A923CCF771F3BF2F3D --mojo-platform-channel-handle=2152 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:5004
- - 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=B23170B972C5D39149621351A4571FAA --mojo-platform-channel-handle=2320 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:5112
- - 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=AF68B844684D829F45C6FF4E46CC6DD7 --mojo-platform-channel-handle=2164 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3360
- - 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=A785AD570C12DDA0906F9662B603F7CA --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=A785AD570C12DDA0906F9662B603F7CA --renderer-client-id=7 --mojo-platform-channel-handle=2380 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:2780

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:3152

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
8d6ebe13e377be5222638c380c1f4e47

SHA1
9cc9a34577c107b8704649a1e593480a6b4e65ad

SHA256
dd069de8ee43a2e404c684ae1d4e40ee667011b15d93e2e1ee9bc7dc82a5a779

SHA512
81e0e0824bf2f4a222a7280af2160aed7f97cd64f4ee77697392f0c13a601ea158cc35e8d65d507b11b4d0af4a8c2581f66f947a67933011363d61c689af493f

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