fef1c88e32750b6907d82a24f7b8e74e95039ed668340a7dbde6c999cebc03f8

Analysis

max time kernel
149s
max time network
149s
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, 17:43

Sharing

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General

Target

31d0e286d06f592df82cbec492e3b75e.pdf
Size

88KB
MD5

31d0e286d06f592df82cbec492e3b75e
SHA1

b259e3454fa834fe692b2da27050ec39df7c3326
SHA256

fef1c88e32750b6907d82a24f7b8e74e95039ed668340a7dbde6c999cebc03f8
SHA512

ce7176bc2d88370c757c5857a790fcb2e8dc8b524d9ce2ee3a43295d3ccd18faad0ea9ffe12dbf422d137c63ac4f7c4925b99a9431d747eb6f93e2d2731a6e32
SSDEEP

1536:EnZd8D+M2Kh6jbAuWQUqH0GN4PBKPRmzWcMyvVrwSqjUY/OTFWUpO7qYZ:aZd8iMP6jQqH3yyRmGZSqjUY/OM71

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
2640	AcroRd32.exe
2640	AcroRd32.exe
2640	AcroRd32.exe
2640	AcroRd32.exe
2640	AcroRd32.exe
2640	AcroRd32.exe
2640	AcroRd32.exe
2640	AcroRd32.exe
2640	AcroRd32.exe
2640	AcroRd32.exe
2640	AcroRd32.exe
2640	AcroRd32.exe
2640	AcroRd32.exe
2640	AcroRd32.exe
2640	AcroRd32.exe
2640	AcroRd32.exe
2640	AcroRd32.exe
2640	AcroRd32.exe
2640	AcroRd32.exe
2640	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2640	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
2640	AcroRd32.exe
2640	AcroRd32.exe
2640	AcroRd32.exe
2640	AcroRd32.exe
2640	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2640 wrote to memory of 4428	2640	AcroRd32.exe	92
PID 2640 wrote to memory of 4428	2640	AcroRd32.exe	92
PID 2640 wrote to memory of 4428	2640	AcroRd32.exe	92
PID 4428 wrote to memory of 1704	4428	RdrCEF.exe	95
PID 4428 wrote to memory of 1704	4428	RdrCEF.exe	95
PID 4428 wrote to memory of 1704	4428	RdrCEF.exe	95
PID 4428 wrote to memory of 1704	4428	RdrCEF.exe	95
PID 4428 wrote to memory of 1704	4428	RdrCEF.exe	95
PID 4428 wrote to memory of 1704	4428	RdrCEF.exe	95
PID 4428 wrote to memory of 1704	4428	RdrCEF.exe	95
PID 4428 wrote to memory of 1704	4428	RdrCEF.exe	95
PID 4428 wrote to memory of 1704	4428	RdrCEF.exe	95
PID 4428 wrote to memory of 1704	4428	RdrCEF.exe	95
PID 4428 wrote to memory of 1704	4428	RdrCEF.exe	95
PID 4428 wrote to memory of 1704	4428	RdrCEF.exe	95
PID 4428 wrote to memory of 1704	4428	RdrCEF.exe	95
PID 4428 wrote to memory of 1704	4428	RdrCEF.exe	95
PID 4428 wrote to memory of 1704	4428	RdrCEF.exe	95
PID 4428 wrote to memory of 1704	4428	RdrCEF.exe	95
PID 4428 wrote to memory of 1704	4428	RdrCEF.exe	95
PID 4428 wrote to memory of 1704	4428	RdrCEF.exe	95
PID 4428 wrote to memory of 1704	4428	RdrCEF.exe	95
PID 4428 wrote to memory of 1704	4428	RdrCEF.exe	95
PID 4428 wrote to memory of 1704	4428	RdrCEF.exe	95
PID 4428 wrote to memory of 1704	4428	RdrCEF.exe	95
PID 4428 wrote to memory of 1704	4428	RdrCEF.exe	95
PID 4428 wrote to memory of 1704	4428	RdrCEF.exe	95
PID 4428 wrote to memory of 1704	4428	RdrCEF.exe	95
PID 4428 wrote to memory of 1704	4428	RdrCEF.exe	95
PID 4428 wrote to memory of 1704	4428	RdrCEF.exe	95
PID 4428 wrote to memory of 1704	4428	RdrCEF.exe	95
PID 4428 wrote to memory of 1704	4428	RdrCEF.exe	95
PID 4428 wrote to memory of 1704	4428	RdrCEF.exe	95
PID 4428 wrote to memory of 1704	4428	RdrCEF.exe	95
PID 4428 wrote to memory of 1704	4428	RdrCEF.exe	95
PID 4428 wrote to memory of 1704	4428	RdrCEF.exe	95
PID 4428 wrote to memory of 1704	4428	RdrCEF.exe	95
PID 4428 wrote to memory of 1704	4428	RdrCEF.exe	95
PID 4428 wrote to memory of 1704	4428	RdrCEF.exe	95
PID 4428 wrote to memory of 1704	4428	RdrCEF.exe	95
PID 4428 wrote to memory of 1704	4428	RdrCEF.exe	95
PID 4428 wrote to memory of 1704	4428	RdrCEF.exe	95
PID 4428 wrote to memory of 1704	4428	RdrCEF.exe	95
PID 4428 wrote to memory of 1704	4428	RdrCEF.exe	95
PID 4428 wrote to memory of 3740	4428	RdrCEF.exe	96
PID 4428 wrote to memory of 3740	4428	RdrCEF.exe	96
PID 4428 wrote to memory of 3740	4428	RdrCEF.exe	96
PID 4428 wrote to memory of 3740	4428	RdrCEF.exe	96
PID 4428 wrote to memory of 3740	4428	RdrCEF.exe	96
PID 4428 wrote to memory of 3740	4428	RdrCEF.exe	96
PID 4428 wrote to memory of 3740	4428	RdrCEF.exe	96
PID 4428 wrote to memory of 3740	4428	RdrCEF.exe	96
PID 4428 wrote to memory of 3740	4428	RdrCEF.exe	96
PID 4428 wrote to memory of 3740	4428	RdrCEF.exe	96
PID 4428 wrote to memory of 3740	4428	RdrCEF.exe	96
PID 4428 wrote to memory of 3740	4428	RdrCEF.exe	96
PID 4428 wrote to memory of 3740	4428	RdrCEF.exe	96
PID 4428 wrote to memory of 3740	4428	RdrCEF.exe	96
PID 4428 wrote to memory of 3740	4428	RdrCEF.exe	96
PID 4428 wrote to memory of 3740	4428	RdrCEF.exe	96
PID 4428 wrote to memory of 3740	4428	RdrCEF.exe	96
PID 4428 wrote to memory of 3740	4428	RdrCEF.exe	96
PID 4428 wrote to memory of 3740	4428	RdrCEF.exe	96
PID 4428 wrote to memory of 3740	4428	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\31d0e286d06f592df82cbec492e3b75e.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:2640
- 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:4428
- - 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=3F95384B275E8C80CF2F3D452804B534 --mojo-platform-channel-handle=1740 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1704
- - 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=8620477A7CA2214931C790BF9D9E3CC6 --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=8620477A7CA2214931C790BF9D9E3CC6 --renderer-client-id=2 --mojo-platform-channel-handle=1748 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:3740
- - 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=E4D02454D540A20D87F7AEDDC3D4A091 --mojo-platform-channel-handle=2184 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2288
- - 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=2A87EA3D8B79F0DB61FE4A75065B906F --mojo-platform-channel-handle=2420 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:5104
- - 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=77B4C9BD99F97661EA5EEB3A7611D56C --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=77B4C9BD99F97661EA5EEB3A7611D56C --renderer-client-id=6 --mojo-platform-channel-handle=2428 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:2328
- - 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=AC59AC45DC996FC539718BC625680CDC --mojo-platform-channel-handle=2768 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2448

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:2096

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
ded4ad9de2afc73c74d7d4db6c4c2a0f

SHA1
cb14774639a764167d9b568c2c5b1d99e0d7ddf4

SHA256
56c203fbe9006fe223a2cb67d9fac416a5573181bfc01ece19137f4a76effb54

SHA512
9457a6cd48c9c4fbc6c43dfb259917eec3ca656dc9174005108807836c36f0ccfae7af24f9eaa407b8288c226d0a353d1e2d5bcfc0d4aae74c38a860a25eaa53

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
memory/2640-26-0x000000000C450000-0x000000000C4A0000-memory.dmp

Filesize
320KB

Download