dec08484ff78e9751afa042fe6c84510eede3d2aeea779c52342b238edf806bb

Analysis

max time kernel
158s
max time network
166s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
04/01/2024, 14:40

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General

Target

4120c1e053cdff4319f4026fe61401ce.pdf
Size

91KB
MD5

4120c1e053cdff4319f4026fe61401ce
SHA1

dfe8a15b792e1c54b24d9f44d3c4db3d2040add7
SHA256

dec08484ff78e9751afa042fe6c84510eede3d2aeea779c52342b238edf806bb
SHA512

f2997d093a9d45af8da14d71c1147e92056b7f5d11dd77e9dc037612084086b50d8ea7eed82596140e33532c3d0c8b3a9efe3acd8f0111318297c2ddcd9168ac
SSDEEP

1536:54Qdvh4x61FVBYi+PDOmRnzHMH+rioL426gh7VBLWaGQYVBQCbEuEWspORuc8ARW:yMRVvmRnz3rie3lh7VrABQCbEu/Rucxw

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-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3724	AcroRd32.exe
3724	AcroRd32.exe
3724	AcroRd32.exe
3724	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3724	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
3724	AcroRd32.exe
3724	AcroRd32.exe
3724	AcroRd32.exe
3724	AcroRd32.exe
3724	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 3724 wrote to memory of 4404	3724	AcroRd32.exe	104
PID 3724 wrote to memory of 4404	3724	AcroRd32.exe	104
PID 3724 wrote to memory of 4404	3724	AcroRd32.exe	104
PID 3724 wrote to memory of 4744	3724	AcroRd32.exe	110
PID 3724 wrote to memory of 4744	3724	AcroRd32.exe	110
PID 3724 wrote to memory of 4744	3724	AcroRd32.exe	110
PID 3724 wrote to memory of 4432	3724	AcroRd32.exe	111
PID 3724 wrote to memory of 4432	3724	AcroRd32.exe	111
PID 3724 wrote to memory of 4432	3724	AcroRd32.exe	111
PID 3724 wrote to memory of 4264	3724	AcroRd32.exe	112
PID 3724 wrote to memory of 4264	3724	AcroRd32.exe	112
PID 3724 wrote to memory of 4264	3724	AcroRd32.exe	112
PID 3724 wrote to memory of 2492	3724	AcroRd32.exe	113
PID 3724 wrote to memory of 2492	3724	AcroRd32.exe	113
PID 3724 wrote to memory of 2492	3724	AcroRd32.exe	113
PID 3724 wrote to memory of 2940	3724	AcroRd32.exe	114
PID 3724 wrote to memory of 2940	3724	AcroRd32.exe	114
PID 3724 wrote to memory of 2940	3724	AcroRd32.exe	114
PID 2940 wrote to memory of 260	2940	RdrCEF.exe	119
PID 2940 wrote to memory of 260	2940	RdrCEF.exe	119
PID 2940 wrote to memory of 260	2940	RdrCEF.exe	119
PID 2940 wrote to memory of 260	2940	RdrCEF.exe	119
PID 2940 wrote to memory of 260	2940	RdrCEF.exe	119
PID 2940 wrote to memory of 260	2940	RdrCEF.exe	119
PID 2940 wrote to memory of 260	2940	RdrCEF.exe	119
PID 2940 wrote to memory of 260	2940	RdrCEF.exe	119
PID 2940 wrote to memory of 260	2940	RdrCEF.exe	119
PID 2940 wrote to memory of 260	2940	RdrCEF.exe	119
PID 2940 wrote to memory of 260	2940	RdrCEF.exe	119
PID 2940 wrote to memory of 260	2940	RdrCEF.exe	119
PID 2940 wrote to memory of 260	2940	RdrCEF.exe	119
PID 2940 wrote to memory of 260	2940	RdrCEF.exe	119
PID 2940 wrote to memory of 260	2940	RdrCEF.exe	119
PID 2940 wrote to memory of 260	2940	RdrCEF.exe	119
PID 2940 wrote to memory of 260	2940	RdrCEF.exe	119
PID 2940 wrote to memory of 260	2940	RdrCEF.exe	119
PID 2940 wrote to memory of 260	2940	RdrCEF.exe	119
PID 2940 wrote to memory of 260	2940	RdrCEF.exe	119
PID 2940 wrote to memory of 260	2940	RdrCEF.exe	119
PID 2940 wrote to memory of 260	2940	RdrCEF.exe	119
PID 2940 wrote to memory of 260	2940	RdrCEF.exe	119
PID 2940 wrote to memory of 260	2940	RdrCEF.exe	119
PID 2940 wrote to memory of 260	2940	RdrCEF.exe	119
PID 2940 wrote to memory of 260	2940	RdrCEF.exe	119
PID 2940 wrote to memory of 260	2940	RdrCEF.exe	119
PID 2940 wrote to memory of 260	2940	RdrCEF.exe	119
PID 2940 wrote to memory of 260	2940	RdrCEF.exe	119
PID 2940 wrote to memory of 260	2940	RdrCEF.exe	119
PID 2940 wrote to memory of 260	2940	RdrCEF.exe	119
PID 2940 wrote to memory of 260	2940	RdrCEF.exe	119
PID 2940 wrote to memory of 260	2940	RdrCEF.exe	119
PID 2940 wrote to memory of 260	2940	RdrCEF.exe	119
PID 2940 wrote to memory of 260	2940	RdrCEF.exe	119
PID 2940 wrote to memory of 260	2940	RdrCEF.exe	119
PID 2940 wrote to memory of 260	2940	RdrCEF.exe	119
PID 2940 wrote to memory of 260	2940	RdrCEF.exe	119
PID 2940 wrote to memory of 260	2940	RdrCEF.exe	119
PID 2940 wrote to memory of 260	2940	RdrCEF.exe	119
PID 2940 wrote to memory of 260	2940	RdrCEF.exe	119
PID 2940 wrote to memory of 2168	2940	RdrCEF.exe	120
PID 2940 wrote to memory of 2168	2940	RdrCEF.exe	120
PID 2940 wrote to memory of 2168	2940	RdrCEF.exe	120
PID 2940 wrote to memory of 2168	2940	RdrCEF.exe	120
PID 2940 wrote to memory of 2168	2940	RdrCEF.exe	120

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\4120c1e053cdff4319f4026fe61401ce.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:3724
- 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:4404
- 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:4744
- 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:4432
- 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:4264
- 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:2492
- 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:2940
- - 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=C112501E78318B17DA058FFEBF390555 --mojo-platform-channel-handle=1740 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:260
- - 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=4FD2FB782527D15F8C566FEAE0EE3BDA --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=4FD2FB782527D15F8C566FEAE0EE3BDA --renderer-client-id=2 --mojo-platform-channel-handle=1920 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:2168

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
36KB

MD5
b30d3becc8731792523d599d949e63f5

SHA1
19350257e42d7aee17fb3bf139a9d3adb330fad4

SHA256
b1b77e96279ead2b460de3de70e2ea4f5ad1b853598a4e27a5caf3f1a32cc4f3

SHA512
523f54895fb07f62b9a5f72c8b62e83d4d9506bda57b183818615f6eb7286e3b9c5a50409bc5c5164867c3ccdeae88aa395ecca6bc7e36d991552f857510792e

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

Filesize
56KB

MD5
752a1f26b18748311b691c7d8fc20633

SHA1
c1f8e83eebc1cc1e9b88c773338eb09ff82ab862

SHA256
111dac2948e4cecb10b0d2e10d8afaa663d78d643826b592d6414a1fd77cc131

SHA512
a2f5f262faf2c3e9756da94b2c47787ce3a9391b5bd53581578aa9a764449e114836704d6dec4aadc097fed4c818831baa11affa1eb25be2bfad9349bb090fe5

Download Submit