d163a040982c7a1172693c37aca927e4b5d96b0d982afe87f7ddf3878a7cca2d

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
14/05/2024, 06:30

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General

Target
S - DNK Policy Adjustment.pdf
Size 106KB
Sample240514-g91d3seb59
SHA256 ff5cf22c7e45dbc66cfb5ed5b5c99d9a0342706daadd23f0709a7c25ec2dfe06
MD5 250f6ca51cc04377a3609a4faaaab0f0
SHA1 e77dc22beb3813e3eb952f8451344dfc14c8863c
SHA512 5646ab381f2c20ed6534028d4ca88946d3f3373cc4e470938bda38c5f385f264983ac8a469e59a520acf93bf24c6a581bae05e529aa2881f67b7610ff26cc5dd
SSDEEP 1536:9yZA6SH7RbBcq/hBOitOOdG538OZU+KaSxtLRU+9S/BqK365UBm94t:4ZQbBd/zLdy38AU+1SBU+wT3KUBm4
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-1-5-21-3558294865-3673844354-2255444939-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
1884	AcroRd32.exe
1884	AcroRd32.exe
1884	AcroRd32.exe
1884	AcroRd32.exe
1884	AcroRd32.exe
1884	AcroRd32.exe
1884	AcroRd32.exe
1884	AcroRd32.exe
1884	AcroRd32.exe
1884	AcroRd32.exe
1884	AcroRd32.exe
1884	AcroRd32.exe
1884	AcroRd32.exe
1884	AcroRd32.exe
1884	AcroRd32.exe
1884	AcroRd32.exe
1884	AcroRd32.exe
1884	AcroRd32.exe
1884	AcroRd32.exe
1884	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1884	AcroRd32.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
1884	AcroRd32.exe
1884	AcroRd32.exe
1884	AcroRd32.exe
1884	AcroRd32.exe
1884	AcroRd32.exe
1884	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 1884 wrote to memory of 2616	1884	AcroRd32.exe	84
PID 1884 wrote to memory of 2616	1884	AcroRd32.exe	84
PID 1884 wrote to memory of 2616	1884	AcroRd32.exe	84
PID 2616 wrote to memory of 1824	2616	RdrCEF.exe	85
PID 2616 wrote to memory of 1824	2616	RdrCEF.exe	85
PID 2616 wrote to memory of 1824	2616	RdrCEF.exe	85
PID 2616 wrote to memory of 1824	2616	RdrCEF.exe	85
PID 2616 wrote to memory of 1824	2616	RdrCEF.exe	85
PID 2616 wrote to memory of 1824	2616	RdrCEF.exe	85
PID 2616 wrote to memory of 1824	2616	RdrCEF.exe	85
PID 2616 wrote to memory of 1824	2616	RdrCEF.exe	85
PID 2616 wrote to memory of 1824	2616	RdrCEF.exe	85
PID 2616 wrote to memory of 1824	2616	RdrCEF.exe	85
PID 2616 wrote to memory of 1824	2616	RdrCEF.exe	85
PID 2616 wrote to memory of 1824	2616	RdrCEF.exe	85
PID 2616 wrote to memory of 1824	2616	RdrCEF.exe	85
PID 2616 wrote to memory of 1824	2616	RdrCEF.exe	85
PID 2616 wrote to memory of 1824	2616	RdrCEF.exe	85
PID 2616 wrote to memory of 1824	2616	RdrCEF.exe	85
PID 2616 wrote to memory of 1824	2616	RdrCEF.exe	85
PID 2616 wrote to memory of 1824	2616	RdrCEF.exe	85
PID 2616 wrote to memory of 1824	2616	RdrCEF.exe	85
PID 2616 wrote to memory of 1824	2616	RdrCEF.exe	85
PID 2616 wrote to memory of 1824	2616	RdrCEF.exe	85
PID 2616 wrote to memory of 1824	2616	RdrCEF.exe	85
PID 2616 wrote to memory of 1824	2616	RdrCEF.exe	85
PID 2616 wrote to memory of 1824	2616	RdrCEF.exe	85
PID 2616 wrote to memory of 1824	2616	RdrCEF.exe	85
PID 2616 wrote to memory of 1824	2616	RdrCEF.exe	85
PID 2616 wrote to memory of 1824	2616	RdrCEF.exe	85
PID 2616 wrote to memory of 1824	2616	RdrCEF.exe	85
PID 2616 wrote to memory of 1824	2616	RdrCEF.exe	85
PID 2616 wrote to memory of 1824	2616	RdrCEF.exe	85
PID 2616 wrote to memory of 1824	2616	RdrCEF.exe	85
PID 2616 wrote to memory of 1824	2616	RdrCEF.exe	85
PID 2616 wrote to memory of 1824	2616	RdrCEF.exe	85
PID 2616 wrote to memory of 1824	2616	RdrCEF.exe	85
PID 2616 wrote to memory of 1824	2616	RdrCEF.exe	85
PID 2616 wrote to memory of 1824	2616	RdrCEF.exe	85
PID 2616 wrote to memory of 1824	2616	RdrCEF.exe	85
PID 2616 wrote to memory of 1824	2616	RdrCEF.exe	85
PID 2616 wrote to memory of 1824	2616	RdrCEF.exe	85
PID 2616 wrote to memory of 1824	2616	RdrCEF.exe	85
PID 2616 wrote to memory of 1824	2616	RdrCEF.exe	85
PID 2616 wrote to memory of 744	2616	RdrCEF.exe	86
PID 2616 wrote to memory of 744	2616	RdrCEF.exe	86
PID 2616 wrote to memory of 744	2616	RdrCEF.exe	86
PID 2616 wrote to memory of 744	2616	RdrCEF.exe	86
PID 2616 wrote to memory of 744	2616	RdrCEF.exe	86
PID 2616 wrote to memory of 744	2616	RdrCEF.exe	86
PID 2616 wrote to memory of 744	2616	RdrCEF.exe	86
PID 2616 wrote to memory of 744	2616	RdrCEF.exe	86
PID 2616 wrote to memory of 744	2616	RdrCEF.exe	86
PID 2616 wrote to memory of 744	2616	RdrCEF.exe	86
PID 2616 wrote to memory of 744	2616	RdrCEF.exe	86
PID 2616 wrote to memory of 744	2616	RdrCEF.exe	86
PID 2616 wrote to memory of 744	2616	RdrCEF.exe	86
PID 2616 wrote to memory of 744	2616	RdrCEF.exe	86
PID 2616 wrote to memory of 744	2616	RdrCEF.exe	86
PID 2616 wrote to memory of 744	2616	RdrCEF.exe	86
PID 2616 wrote to memory of 744	2616	RdrCEF.exe	86
PID 2616 wrote to memory of 744	2616	RdrCEF.exe	86
PID 2616 wrote to memory of 744	2616	RdrCEF.exe	86
PID 2616 wrote to memory of 744	2616	RdrCEF.exe	86

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\S - DNK Policy Adjustment.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:1884
- 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:2616
- - 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=0474BB5B47D81F9421DDACA54677BC0F --mojo-platform-channel-handle=1740 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1824
- - 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=5306EE8343DB76D7E8062338C79D730B --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=5306EE8343DB76D7E8062338C79D730B --renderer-client-id=2 --mojo-platform-channel-handle=1748 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:744
- - 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=A8B24F991B190CBD8467BA843B719BFA --mojo-platform-channel-handle=2304 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:372
- - 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=3E9A0EBF2E1C8DFE46FF14D25F0302CA --mojo-platform-channel-handle=2428 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2068
- - 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=881C269A6737913CDA082B2E1569C24F --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=881C269A6737913CDA082B2E1569C24F --renderer-client-id=6 --mojo-platform-channel-handle=1836 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:3864
- - 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=68451F6D89FF097B4436AB1549A51068 --mojo-platform-channel-handle=2652 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:636

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:2816

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 dc2461b6c0bd44c29fed57842b08461f69613f62261e3129db0fd961c53faa72
MD5 ed582958efb9c591a1edb9318e7517df
SHA1 80d7cdff129d07a17a76cac4da405f2463839b8f
SHA512 42ae391a26956eee48d63326191af523c15081fcb72e81fd90a6ba70771db9192a5acee8a0b0662f158d5d0cd75dbdf62a8e08c2575434846d12ab09e8fd160b
SSDEEP 384:yeqdThatELJ8SWvDTGJCesZsLglKhubvGZsLRZh+vS4:5+elZsLQCZsL3hUS4
MD5 SHA1 SHA512 SSDEEP

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ReaderMessages

Path C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\ReaderMessages
Size 36KB
SHA256 b1b77e96279ead2b460de3de70e2ea4f5ad1b853598a4e27a5caf3f1a32cc4f3
MD5 b30d3becc8731792523d599d949e63f5
SHA1 19350257e42d7aee17fb3bf139a9d3adb330fad4
SHA512 523f54895fb07f62b9a5f72c8b62e83d4d9506bda57b183818615f6eb7286e3b9c5a50409bc5c5164867c3ccdeae88aa395ecca6bc7e36d991552f857510792e
SSDEEP 24:TLiXlzkrFsgIFsxX3pALXmnHpkDGjmcxBSkomXk+2m9RFTsyg+wmf9Mzm+Zs3tGl:TqlmFTIF3XmHjBoGGR+jMz+LhT
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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