9a64fcc98b6d111489431ed52089fd10edac5137d11bfa00e2bfdf16f4833e1d

Analysis

max time kernel
141s
max time network
127s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
22/12/2023, 14:40

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General

Target
c854f7486792532910c5d6af9b6d51ef.pdf
Size 77KB
Sample231222-r1195acbbp
SHA256 9a64fcc98b6d111489431ed52089fd10edac5137d11bfa00e2bfdf16f4833e1d
MD5 c854f7486792532910c5d6af9b6d51ef
SHA1 db43060922b9124fa38fb458b2f1c169aea79ea6
SHA512 871600f7619af3f6666eb530967094f36378e4c300e50ea909f8534e076f56a319243cf8ed2598fb12fbade7941a41a0047ca7968870b81b6b1609d9e6acf200
SSDEEP 1536:3NvH2FGlhK8D1J9wYX4wQHEh+WwuUaWapOn6WnRJrq0kqgtRWp:Fb6iwYowQolUbnNrqdqgty
MD5 SHA1 SHA512 SSDEEP

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
4648	AcroRd32.exe
4648	AcroRd32.exe
4648	AcroRd32.exe
4648	AcroRd32.exe
4648	AcroRd32.exe
4648	AcroRd32.exe
4648	AcroRd32.exe
4648	AcroRd32.exe
4648	AcroRd32.exe
4648	AcroRd32.exe
4648	AcroRd32.exe
4648	AcroRd32.exe
4648	AcroRd32.exe
4648	AcroRd32.exe
4648	AcroRd32.exe
4648	AcroRd32.exe
4648	AcroRd32.exe
4648	AcroRd32.exe
4648	AcroRd32.exe
4648	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4648	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
4648	AcroRd32.exe
4648	AcroRd32.exe
4648	AcroRd32.exe
4648	AcroRd32.exe
4648	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4648 wrote to memory of 2444	4648	AcroRd32.exe	91
PID 4648 wrote to memory of 2444	4648	AcroRd32.exe	91
PID 4648 wrote to memory of 2444	4648	AcroRd32.exe	91
PID 2444 wrote to memory of 4972	2444	RdrCEF.exe	93
PID 2444 wrote to memory of 4972	2444	RdrCEF.exe	93
PID 2444 wrote to memory of 4972	2444	RdrCEF.exe	93
PID 2444 wrote to memory of 4972	2444	RdrCEF.exe	93
PID 2444 wrote to memory of 4972	2444	RdrCEF.exe	93
PID 2444 wrote to memory of 4972	2444	RdrCEF.exe	93
PID 2444 wrote to memory of 4972	2444	RdrCEF.exe	93
PID 2444 wrote to memory of 4972	2444	RdrCEF.exe	93
PID 2444 wrote to memory of 4972	2444	RdrCEF.exe	93
PID 2444 wrote to memory of 4972	2444	RdrCEF.exe	93
PID 2444 wrote to memory of 4972	2444	RdrCEF.exe	93
PID 2444 wrote to memory of 4972	2444	RdrCEF.exe	93
PID 2444 wrote to memory of 4972	2444	RdrCEF.exe	93
PID 2444 wrote to memory of 4972	2444	RdrCEF.exe	93
PID 2444 wrote to memory of 4972	2444	RdrCEF.exe	93
PID 2444 wrote to memory of 4972	2444	RdrCEF.exe	93
PID 2444 wrote to memory of 4972	2444	RdrCEF.exe	93
PID 2444 wrote to memory of 4972	2444	RdrCEF.exe	93
PID 2444 wrote to memory of 4972	2444	RdrCEF.exe	93
PID 2444 wrote to memory of 4972	2444	RdrCEF.exe	93
PID 2444 wrote to memory of 4972	2444	RdrCEF.exe	93
PID 2444 wrote to memory of 4972	2444	RdrCEF.exe	93
PID 2444 wrote to memory of 4972	2444	RdrCEF.exe	93
PID 2444 wrote to memory of 4972	2444	RdrCEF.exe	93
PID 2444 wrote to memory of 4972	2444	RdrCEF.exe	93
PID 2444 wrote to memory of 4972	2444	RdrCEF.exe	93
PID 2444 wrote to memory of 4972	2444	RdrCEF.exe	93
PID 2444 wrote to memory of 4972	2444	RdrCEF.exe	93
PID 2444 wrote to memory of 4972	2444	RdrCEF.exe	93
PID 2444 wrote to memory of 4972	2444	RdrCEF.exe	93
PID 2444 wrote to memory of 4972	2444	RdrCEF.exe	93
PID 2444 wrote to memory of 4972	2444	RdrCEF.exe	93
PID 2444 wrote to memory of 4972	2444	RdrCEF.exe	93
PID 2444 wrote to memory of 4972	2444	RdrCEF.exe	93
PID 2444 wrote to memory of 4972	2444	RdrCEF.exe	93
PID 2444 wrote to memory of 4972	2444	RdrCEF.exe	93
PID 2444 wrote to memory of 4972	2444	RdrCEF.exe	93
PID 2444 wrote to memory of 4972	2444	RdrCEF.exe	93
PID 2444 wrote to memory of 4972	2444	RdrCEF.exe	93
PID 2444 wrote to memory of 4972	2444	RdrCEF.exe	93
PID 2444 wrote to memory of 4972	2444	RdrCEF.exe	93
PID 2444 wrote to memory of 4972	2444	RdrCEF.exe	93
PID 2444 wrote to memory of 4972	2444	RdrCEF.exe	93
PID 2444 wrote to memory of 4484	2444	RdrCEF.exe	92
PID 2444 wrote to memory of 4484	2444	RdrCEF.exe	92
PID 2444 wrote to memory of 4484	2444	RdrCEF.exe	92
PID 2444 wrote to memory of 4484	2444	RdrCEF.exe	92
PID 2444 wrote to memory of 4484	2444	RdrCEF.exe	92
PID 2444 wrote to memory of 4484	2444	RdrCEF.exe	92
PID 2444 wrote to memory of 4484	2444	RdrCEF.exe	92
PID 2444 wrote to memory of 4484	2444	RdrCEF.exe	92
PID 2444 wrote to memory of 4484	2444	RdrCEF.exe	92
PID 2444 wrote to memory of 4484	2444	RdrCEF.exe	92
PID 2444 wrote to memory of 4484	2444	RdrCEF.exe	92
PID 2444 wrote to memory of 4484	2444	RdrCEF.exe	92
PID 2444 wrote to memory of 4484	2444	RdrCEF.exe	92
PID 2444 wrote to memory of 4484	2444	RdrCEF.exe	92
PID 2444 wrote to memory of 4484	2444	RdrCEF.exe	92
PID 2444 wrote to memory of 4484	2444	RdrCEF.exe	92
PID 2444 wrote to memory of 4484	2444	RdrCEF.exe	92
PID 2444 wrote to memory of 4484	2444	RdrCEF.exe	92

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\c854f7486792532910c5d6af9b6d51ef.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:4648
- 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:2444
- - 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=255A250BFB8435F59650C1F9DD735484 --mojo-platform-channel-handle=1748 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4484
- - 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=7A68CBD4DAE72C6C9FA8A82FC412533F --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=7A68CBD4DAE72C6C9FA8A82FC412533F --renderer-client-id=2 --mojo-platform-channel-handle=1740 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4972
- - 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=299CEF1FFE174038F93D9E3496C4A253 --mojo-platform-channel-handle=2296 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1688
- - 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=AB30926FC68FA4DAA3E6D87FEA7F2E46 --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=AB30926FC68FA4DAA3E6D87FEA7F2E46 --renderer-client-id=5 --mojo-platform-channel-handle=2440 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:2744
- - 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=2308FD677BFC8F6D4A827730DABE5166 --mojo-platform-channel-handle=2524 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3640
- - 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=2C13B7398FC8C0F4974CE97EF6A1B43E --mojo-platform-channel-handle=2820 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4516

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:2092

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

ReaderMessages

Path C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\ReaderMessages
Size 64KB
SHA256 0b488e5cfc3578dab3294e38d12bbad37c43a5e5397c95221bce809ed9f1156c
MD5 2405ac79f5c648131355ec701bebd1cc
SHA1 db13640071a05ae7c2d287f4f8e376a9409be9b7
SHA512 5f57ec29dd7e8db7d1751725b0e027304e7ce5623de79e99e0a3dbe2069b152ac426dbae109135632b88ce2211447050121a426134214ddb9c57a66db4328ff3
SSDEEP 384:ye5dThatELJ8SWvDTGJCesZsLglKhubvGZsLRZh+vS4:Q+elZsLQCZsL3hUS4
MD5 SHA1 SHA512 SSDEEP

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ReaderMessages

Path C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\ReaderMessages
Size 56KB
SHA256 6a3c5c4a8e57f77ecc22078fbf603ecc31fb82d429bd87b7b4b9261447092aef
MD5 c26ed30e7d5ab440480838636efc41db
SHA1 c66e0d00b56abebfb60d2fcc5cf85ad31a0d6591
SHA512 96cdb78bca3e01d4513c31661987e5646e6a8ff24708918aa0d66dfa3ca5d98af4862c9f38c4f41f933c345d2d3adfb1d34d1430b33f45f916f41a9872a030df
SSDEEP 192:xedRBsKhTB4p4CitZtkZsLRGVDbw6H3ph+v3YQa9:xe+KhBvkZsLRGlzh+vS9
MD5 SHA1 SHA512 SSDEEP

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ReaderMessages

Path C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\ReaderMessages
Size 56KB
SHA256 111dac2948e4cecb10b0d2e10d8afaa663d78d643826b592d6414a1fd77cc131
MD5 752a1f26b18748311b691c7d8fc20633
SHA1 c1f8e83eebc1cc1e9b88c773338eb09ff82ab862
SHA512 a2f5f262faf2c3e9756da94b2c47787ce3a9391b5bd53581578aa9a764449e114836704d6dec4aadc097fed4c818831baa11affa1eb25be2bfad9349bb090fe5
SSDEEP 192:wedRBvVrThe4p4/KhTB4p4CitZtkZsLRGVDbw6H3ph+v3YQa9:weZdThkKhBvkZsLRGlzh+vS9
MD5 SHA1 SHA512 SSDEEP

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