366630163cc4d7fd8ebdfa3677be73a655741bef963c721899716a94b924cc8f

Analysis

max time kernel
140s
max time network
135s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
20/02/2024, 20:40

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General

Target

Brother MA4-B551.pdf
Size

3.4MB
MD5

1035515b7e3810dd3a2172f31dbebfbf
SHA1

96d4b65ef307cb9677e4e27b9dfa8de48097dc72
SHA256

366630163cc4d7fd8ebdfa3677be73a655741bef963c721899716a94b924cc8f
SHA512

3af3fae51014b996858863253b19022e1756b45a7c8343d2dd09a512237d24b8f343fd9a29c3d5ea41eb0ac93e1e27afec13c8b9c20f8a83ce59d24a789d03de
SSDEEP

98304:3gjZ3EFLNSRuMu021M7H0b2Dvb5+a7VeRT:3M3UOue212M2Dvt+jT

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-1-5-21-3791175113-1062217823-1177695025-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
1120	AcroRd32.exe
1120	AcroRd32.exe
1120	AcroRd32.exe
1120	AcroRd32.exe
1120	AcroRd32.exe
1120	AcroRd32.exe
1120	AcroRd32.exe
1120	AcroRd32.exe
1120	AcroRd32.exe
1120	AcroRd32.exe
1120	AcroRd32.exe
1120	AcroRd32.exe
1120	AcroRd32.exe
1120	AcroRd32.exe
1120	AcroRd32.exe
1120	AcroRd32.exe
1120	AcroRd32.exe
1120	AcroRd32.exe
1120	AcroRd32.exe
1120	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1120	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
1120	AcroRd32.exe
1120	AcroRd32.exe
1120	AcroRd32.exe
1120	AcroRd32.exe
1120	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 1120 wrote to memory of 3272	1120	AcroRd32.exe	85
PID 1120 wrote to memory of 3272	1120	AcroRd32.exe	85
PID 1120 wrote to memory of 3272	1120	AcroRd32.exe	85
PID 3272 wrote to memory of 3744	3272	RdrCEF.exe	86
PID 3272 wrote to memory of 3744	3272	RdrCEF.exe	86
PID 3272 wrote to memory of 3744	3272	RdrCEF.exe	86
PID 3272 wrote to memory of 3744	3272	RdrCEF.exe	86
PID 3272 wrote to memory of 3744	3272	RdrCEF.exe	86
PID 3272 wrote to memory of 3744	3272	RdrCEF.exe	86
PID 3272 wrote to memory of 3744	3272	RdrCEF.exe	86
PID 3272 wrote to memory of 3744	3272	RdrCEF.exe	86
PID 3272 wrote to memory of 3744	3272	RdrCEF.exe	86
PID 3272 wrote to memory of 3744	3272	RdrCEF.exe	86
PID 3272 wrote to memory of 3744	3272	RdrCEF.exe	86
PID 3272 wrote to memory of 3744	3272	RdrCEF.exe	86
PID 3272 wrote to memory of 3744	3272	RdrCEF.exe	86
PID 3272 wrote to memory of 3744	3272	RdrCEF.exe	86
PID 3272 wrote to memory of 3744	3272	RdrCEF.exe	86
PID 3272 wrote to memory of 3744	3272	RdrCEF.exe	86
PID 3272 wrote to memory of 3744	3272	RdrCEF.exe	86
PID 3272 wrote to memory of 3744	3272	RdrCEF.exe	86
PID 3272 wrote to memory of 3744	3272	RdrCEF.exe	86
PID 3272 wrote to memory of 3744	3272	RdrCEF.exe	86
PID 3272 wrote to memory of 3744	3272	RdrCEF.exe	86
PID 3272 wrote to memory of 3744	3272	RdrCEF.exe	86
PID 3272 wrote to memory of 3744	3272	RdrCEF.exe	86
PID 3272 wrote to memory of 3744	3272	RdrCEF.exe	86
PID 3272 wrote to memory of 3744	3272	RdrCEF.exe	86
PID 3272 wrote to memory of 3744	3272	RdrCEF.exe	86
PID 3272 wrote to memory of 3744	3272	RdrCEF.exe	86
PID 3272 wrote to memory of 3744	3272	RdrCEF.exe	86
PID 3272 wrote to memory of 3744	3272	RdrCEF.exe	86
PID 3272 wrote to memory of 3744	3272	RdrCEF.exe	86
PID 3272 wrote to memory of 3744	3272	RdrCEF.exe	86
PID 3272 wrote to memory of 3744	3272	RdrCEF.exe	86
PID 3272 wrote to memory of 3744	3272	RdrCEF.exe	86
PID 3272 wrote to memory of 3744	3272	RdrCEF.exe	86
PID 3272 wrote to memory of 3744	3272	RdrCEF.exe	86
PID 3272 wrote to memory of 3744	3272	RdrCEF.exe	86
PID 3272 wrote to memory of 3744	3272	RdrCEF.exe	86
PID 3272 wrote to memory of 3744	3272	RdrCEF.exe	86
PID 3272 wrote to memory of 3744	3272	RdrCEF.exe	86
PID 3272 wrote to memory of 3744	3272	RdrCEF.exe	86
PID 3272 wrote to memory of 3744	3272	RdrCEF.exe	86
PID 3272 wrote to memory of 3876	3272	RdrCEF.exe	87
PID 3272 wrote to memory of 3876	3272	RdrCEF.exe	87
PID 3272 wrote to memory of 3876	3272	RdrCEF.exe	87
PID 3272 wrote to memory of 3876	3272	RdrCEF.exe	87
PID 3272 wrote to memory of 3876	3272	RdrCEF.exe	87
PID 3272 wrote to memory of 3876	3272	RdrCEF.exe	87
PID 3272 wrote to memory of 3876	3272	RdrCEF.exe	87
PID 3272 wrote to memory of 3876	3272	RdrCEF.exe	87
PID 3272 wrote to memory of 3876	3272	RdrCEF.exe	87
PID 3272 wrote to memory of 3876	3272	RdrCEF.exe	87
PID 3272 wrote to memory of 3876	3272	RdrCEF.exe	87
PID 3272 wrote to memory of 3876	3272	RdrCEF.exe	87
PID 3272 wrote to memory of 3876	3272	RdrCEF.exe	87
PID 3272 wrote to memory of 3876	3272	RdrCEF.exe	87
PID 3272 wrote to memory of 3876	3272	RdrCEF.exe	87
PID 3272 wrote to memory of 3876	3272	RdrCEF.exe	87
PID 3272 wrote to memory of 3876	3272	RdrCEF.exe	87
PID 3272 wrote to memory of 3876	3272	RdrCEF.exe	87
PID 3272 wrote to memory of 3876	3272	RdrCEF.exe	87
PID 3272 wrote to memory of 3876	3272	RdrCEF.exe	87

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\Brother MA4-B551.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:1120
- 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:3272
- - 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=4D0AD5DA83574F43965FB90367F90715 --mojo-platform-channel-handle=1748 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3744
- - 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=5ABC1788A29396F7477AF21FE35743F7 --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=5ABC1788A29396F7477AF21FE35743F7 --renderer-client-id=2 --mojo-platform-channel-handle=1756 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:3876
- - 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=793306F6CFFFB25F5979B63FFC8CB67F --mojo-platform-channel-handle=2284 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4720
- - 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=C569FEA62982B5172D97560A86F02325 --mojo-platform-channel-handle=1944 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3232
- - 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=928DAA086491387C6ECEC7C5F0890425 --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=928DAA086491387C6ECEC7C5F0890425 --renderer-client-id=6 --mojo-platform-channel-handle=1936 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4152
- - 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=6256077989CD6AE63D9F1BE681551A02 --mojo-platform-channel-handle=1852 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4724

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:396

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
1⤵
PID:1076

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
b98b1b03f0cae197738c3cbf1c38961d

SHA1
775ba4069b31aa6806f2f0bb1be08e1529bea313

SHA256
63122e519dbf93ec166dc499dd80447a7fa12c81bb7fd170951653c419504101

SHA512
de85cbab7f082c87b028ba0b1866851e9fc164c0612302489f5ffacef3df63c3d77b7ed4c40f8047eb96e8eb70aefbd848feb1ebf1b5c1a20fa7d275d445af5b

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