40a3dcffa98320636ee436e6be90a3a1756e6c7c7ff78eee1361c1b1521d7b4e

Analysis

max time kernel
195s
max time network
200s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
25-12-2023 19:04

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General

Target

3689d1c913ad563f74acc22aec73099b.pdf
Size

9KB
MD5

3689d1c913ad563f74acc22aec73099b
SHA1

fd91b12c89895e47d2d05236b47edff868a16f6d
SHA256

40a3dcffa98320636ee436e6be90a3a1756e6c7c7ff78eee1361c1b1521d7b4e
SHA512

6804ba0cdadffd553ab50333a67538dd34b8f9485c6156f2ae3cd9847b38102bb6d8bd42927f11f4c1b4f12520488cab79673a7d70960dc41388f94017e10d27
SSDEEP

192:V9hzajYywAO9G+/v5vQNi/60un/TC9htpbOx78y8AdvIP0Fizga1tjB:nhzazwAO9Gi9Qi/60G7C9htpCx78ydIJ

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

Suspicious behavior: EnumeratesProcesses 22 IoCs

pid	Process
5036	AcroRd32.exe
5036	AcroRd32.exe
5036	AcroRd32.exe
5036	AcroRd32.exe
5036	AcroRd32.exe
5036	AcroRd32.exe
5036	AcroRd32.exe
5036	AcroRd32.exe
5036	AcroRd32.exe
5036	AcroRd32.exe
5036	AcroRd32.exe
5036	AcroRd32.exe
5036	AcroRd32.exe
5036	AcroRd32.exe
5036	AcroRd32.exe
5036	AcroRd32.exe
5036	AcroRd32.exe
5036	AcroRd32.exe
5036	AcroRd32.exe
5036	AcroRd32.exe
5036	AcroRd32.exe
5036	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
5036	AcroRd32.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
5036	AcroRd32.exe
5036	AcroRd32.exe
5036	AcroRd32.exe
5036	AcroRd32.exe
5036	AcroRd32.exe
5036	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 5036 wrote to memory of 4132	5036	AcroRd32.exe	99
PID 5036 wrote to memory of 4132	5036	AcroRd32.exe	99
PID 5036 wrote to memory of 4132	5036	AcroRd32.exe	99
PID 5036 wrote to memory of 3180	5036	AcroRd32.exe	100
PID 5036 wrote to memory of 3180	5036	AcroRd32.exe	100
PID 5036 wrote to memory of 3180	5036	AcroRd32.exe	100
PID 5036 wrote to memory of 3472	5036	AcroRd32.exe	101
PID 5036 wrote to memory of 3472	5036	AcroRd32.exe	101
PID 5036 wrote to memory of 3472	5036	AcroRd32.exe	101
PID 3472 wrote to memory of 2024	3472	RdrCEF.exe	104
PID 3472 wrote to memory of 2024	3472	RdrCEF.exe	104
PID 3472 wrote to memory of 2024	3472	RdrCEF.exe	104
PID 3472 wrote to memory of 2024	3472	RdrCEF.exe	104
PID 3472 wrote to memory of 2024	3472	RdrCEF.exe	104
PID 3472 wrote to memory of 2024	3472	RdrCEF.exe	104
PID 3472 wrote to memory of 2024	3472	RdrCEF.exe	104
PID 3472 wrote to memory of 2024	3472	RdrCEF.exe	104
PID 3472 wrote to memory of 2024	3472	RdrCEF.exe	104
PID 3472 wrote to memory of 2024	3472	RdrCEF.exe	104
PID 3472 wrote to memory of 2024	3472	RdrCEF.exe	104
PID 3472 wrote to memory of 2024	3472	RdrCEF.exe	104
PID 3472 wrote to memory of 2024	3472	RdrCEF.exe	104
PID 3472 wrote to memory of 2024	3472	RdrCEF.exe	104
PID 3472 wrote to memory of 2024	3472	RdrCEF.exe	104
PID 3472 wrote to memory of 2024	3472	RdrCEF.exe	104
PID 3472 wrote to memory of 2024	3472	RdrCEF.exe	104
PID 3472 wrote to memory of 2024	3472	RdrCEF.exe	104
PID 3472 wrote to memory of 2024	3472	RdrCEF.exe	104
PID 3472 wrote to memory of 2024	3472	RdrCEF.exe	104
PID 3472 wrote to memory of 2024	3472	RdrCEF.exe	104
PID 3472 wrote to memory of 2024	3472	RdrCEF.exe	104
PID 3472 wrote to memory of 2024	3472	RdrCEF.exe	104
PID 3472 wrote to memory of 2024	3472	RdrCEF.exe	104
PID 3472 wrote to memory of 2024	3472	RdrCEF.exe	104
PID 3472 wrote to memory of 2024	3472	RdrCEF.exe	104
PID 3472 wrote to memory of 2024	3472	RdrCEF.exe	104
PID 3472 wrote to memory of 2024	3472	RdrCEF.exe	104
PID 3472 wrote to memory of 2024	3472	RdrCEF.exe	104
PID 3472 wrote to memory of 2024	3472	RdrCEF.exe	104
PID 3472 wrote to memory of 2024	3472	RdrCEF.exe	104
PID 3472 wrote to memory of 2024	3472	RdrCEF.exe	104
PID 3472 wrote to memory of 2024	3472	RdrCEF.exe	104
PID 3472 wrote to memory of 2024	3472	RdrCEF.exe	104
PID 3472 wrote to memory of 2024	3472	RdrCEF.exe	104
PID 3472 wrote to memory of 2024	3472	RdrCEF.exe	104
PID 3472 wrote to memory of 2024	3472	RdrCEF.exe	104
PID 3472 wrote to memory of 2024	3472	RdrCEF.exe	104
PID 3472 wrote to memory of 2024	3472	RdrCEF.exe	104
PID 3472 wrote to memory of 2024	3472	RdrCEF.exe	104
PID 3472 wrote to memory of 2024	3472	RdrCEF.exe	104
PID 5036 wrote to memory of 4148	5036	AcroRd32.exe	105
PID 5036 wrote to memory of 4148	5036	AcroRd32.exe	105
PID 5036 wrote to memory of 4148	5036	AcroRd32.exe	105
PID 3472 wrote to memory of 4392	3472	RdrCEF.exe	106
PID 3472 wrote to memory of 4392	3472	RdrCEF.exe	106
PID 3472 wrote to memory of 4392	3472	RdrCEF.exe	106
PID 3472 wrote to memory of 4392	3472	RdrCEF.exe	106
PID 3472 wrote to memory of 4392	3472	RdrCEF.exe	106
PID 3472 wrote to memory of 4392	3472	RdrCEF.exe	106
PID 3472 wrote to memory of 4392	3472	RdrCEF.exe	106
PID 3472 wrote to memory of 4392	3472	RdrCEF.exe	106
PID 3472 wrote to memory of 4392	3472	RdrCEF.exe	106
PID 3472 wrote to memory of 4392	3472	RdrCEF.exe	106
PID 3472 wrote to memory of 4392	3472	RdrCEF.exe	106

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\3689d1c913ad563f74acc22aec73099b.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:5036
- 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⤵
  PID:4132
- 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⤵
  PID:3180
- 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:3472
- - 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=5DE0CEB4B9ED7BBE056DB875A2C1491D --mojo-platform-channel-handle=1740 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2024
- - 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=D151B4F3CADD88BA4CF7BFB03783772C --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=D151B4F3CADD88BA4CF7BFB03783772C --renderer-client-id=2 --mojo-platform-channel-handle=1764 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4392
- - 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=299D8B698DBFBE1311A11A6BD3EECC9C --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=299D8B698DBFBE1311A11A6BD3EECC9C --renderer-client-id=4 --mojo-platform-channel-handle=2324 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:1136
- - 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=0585512FD7BC255AB1ED8FBE10E3A1A6 --mojo-platform-channel-handle=2552 --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=8B74AC41C5C1648BECC36C2CCBEEDE20 --mojo-platform-channel-handle=1748 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:492
- - 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=30BAC0F11D3E18F9F68C2CFCFE99A605 --mojo-platform-channel-handle=1920 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:184
- 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⤵
  PID:4148

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
f708dc274653b1016c1d2cd85fd0051d

SHA1
9bc97cea4dff73a972a953aec774f0e3201eb530

SHA256
ff12ca75c160a4527d6832d65cb04f5844883002d7ed3d0cd136c8d5aabbd252

SHA512
02d493e24b9b39de42e0e076df4a24291434b0bbff325d4e14ee3c4d1e9958c36ef0d31a7db07e283398ac0bf0e2b402378c40939ddcc75e22f5ef94cb3eb1ca

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