a794ac78882a744b97acebed7a6a76ac8b3cfdef9d38bd891aa262081e303d52

Analysis

max time kernel
141s
max time network
138s
platform
windows11-21h2_x64
resource
win11-20231215-en
resource tags

arch:x64arch:x86image:win11-20231215-enlocale:en-usos:windows11-21h2-x64system
submitted
01/02/2024, 15:22

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General

Target

doc/colormanage/figures/architecture.pdf
Size

257KB
MD5

a159e5b7a239e1e256982b6f3de4d7ab
SHA1

5edb7a05eb4a5658f0bfe59671e0287b4f0b3bc0
SHA256

62961d4c46d8cab7f03e6017a5fdace31d2712f35cac7f323cae06bd51011f64
SHA512

eb5e676a54a8a10197a4646a5083b6e788fdf9f31697c00fc7836348c268bc83ae7091912aa4df4f74cc5409b09716215753424ddf2d5a78fe8e1f11e30e4312
SSDEEP

6144:8OVF6Ua4tuYQ7HdmAx/rvAfRnkdQgZ+87at9j5:8OrNVQLdXT4u6gr+p

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-1-5-21-1155165157-2721788668-771323609-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
4400	AcroRd32.exe
4400	AcroRd32.exe
4400	AcroRd32.exe
4400	AcroRd32.exe
4400	AcroRd32.exe
4400	AcroRd32.exe
4400	AcroRd32.exe
4400	AcroRd32.exe
4400	AcroRd32.exe
4400	AcroRd32.exe
4400	AcroRd32.exe
4400	AcroRd32.exe
4400	AcroRd32.exe
4400	AcroRd32.exe
4400	AcroRd32.exe
4400	AcroRd32.exe
4400	AcroRd32.exe
4400	AcroRd32.exe
4400	AcroRd32.exe
4400	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4400	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
4400	AcroRd32.exe
4400	AcroRd32.exe
4400	AcroRd32.exe
4400	AcroRd32.exe
4400	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4400 wrote to memory of 4824	4400	AcroRd32.exe	78
PID 4400 wrote to memory of 4824	4400	AcroRd32.exe	78
PID 4400 wrote to memory of 4824	4400	AcroRd32.exe	78
PID 4824 wrote to memory of 1980	4824	RdrCEF.exe	79
PID 4824 wrote to memory of 1980	4824	RdrCEF.exe	79
PID 4824 wrote to memory of 1980	4824	RdrCEF.exe	79
PID 4824 wrote to memory of 1980	4824	RdrCEF.exe	79
PID 4824 wrote to memory of 1980	4824	RdrCEF.exe	79
PID 4824 wrote to memory of 1980	4824	RdrCEF.exe	79
PID 4824 wrote to memory of 1980	4824	RdrCEF.exe	79
PID 4824 wrote to memory of 1980	4824	RdrCEF.exe	79
PID 4824 wrote to memory of 1980	4824	RdrCEF.exe	79
PID 4824 wrote to memory of 1980	4824	RdrCEF.exe	79
PID 4824 wrote to memory of 1980	4824	RdrCEF.exe	79
PID 4824 wrote to memory of 1980	4824	RdrCEF.exe	79
PID 4824 wrote to memory of 1980	4824	RdrCEF.exe	79
PID 4824 wrote to memory of 1980	4824	RdrCEF.exe	79
PID 4824 wrote to memory of 1980	4824	RdrCEF.exe	79
PID 4824 wrote to memory of 1980	4824	RdrCEF.exe	79
PID 4824 wrote to memory of 1980	4824	RdrCEF.exe	79
PID 4824 wrote to memory of 1980	4824	RdrCEF.exe	79
PID 4824 wrote to memory of 1980	4824	RdrCEF.exe	79
PID 4824 wrote to memory of 1980	4824	RdrCEF.exe	79
PID 4824 wrote to memory of 1980	4824	RdrCEF.exe	79
PID 4824 wrote to memory of 1980	4824	RdrCEF.exe	79
PID 4824 wrote to memory of 1980	4824	RdrCEF.exe	79
PID 4824 wrote to memory of 1980	4824	RdrCEF.exe	79
PID 4824 wrote to memory of 1980	4824	RdrCEF.exe	79
PID 4824 wrote to memory of 1980	4824	RdrCEF.exe	79
PID 4824 wrote to memory of 1980	4824	RdrCEF.exe	79
PID 4824 wrote to memory of 1980	4824	RdrCEF.exe	79
PID 4824 wrote to memory of 1980	4824	RdrCEF.exe	79
PID 4824 wrote to memory of 1980	4824	RdrCEF.exe	79
PID 4824 wrote to memory of 1980	4824	RdrCEF.exe	79
PID 4824 wrote to memory of 1980	4824	RdrCEF.exe	79
PID 4824 wrote to memory of 1980	4824	RdrCEF.exe	79
PID 4824 wrote to memory of 1980	4824	RdrCEF.exe	79
PID 4824 wrote to memory of 1980	4824	RdrCEF.exe	79
PID 4824 wrote to memory of 1980	4824	RdrCEF.exe	79
PID 4824 wrote to memory of 1980	4824	RdrCEF.exe	79
PID 4824 wrote to memory of 1980	4824	RdrCEF.exe	79
PID 4824 wrote to memory of 1980	4824	RdrCEF.exe	79
PID 4824 wrote to memory of 1980	4824	RdrCEF.exe	79
PID 4824 wrote to memory of 1980	4824	RdrCEF.exe	79
PID 4824 wrote to memory of 984	4824	RdrCEF.exe	80
PID 4824 wrote to memory of 984	4824	RdrCEF.exe	80
PID 4824 wrote to memory of 984	4824	RdrCEF.exe	80
PID 4824 wrote to memory of 984	4824	RdrCEF.exe	80
PID 4824 wrote to memory of 984	4824	RdrCEF.exe	80
PID 4824 wrote to memory of 984	4824	RdrCEF.exe	80
PID 4824 wrote to memory of 984	4824	RdrCEF.exe	80
PID 4824 wrote to memory of 984	4824	RdrCEF.exe	80
PID 4824 wrote to memory of 984	4824	RdrCEF.exe	80
PID 4824 wrote to memory of 984	4824	RdrCEF.exe	80
PID 4824 wrote to memory of 984	4824	RdrCEF.exe	80
PID 4824 wrote to memory of 984	4824	RdrCEF.exe	80
PID 4824 wrote to memory of 984	4824	RdrCEF.exe	80
PID 4824 wrote to memory of 984	4824	RdrCEF.exe	80
PID 4824 wrote to memory of 984	4824	RdrCEF.exe	80
PID 4824 wrote to memory of 984	4824	RdrCEF.exe	80
PID 4824 wrote to memory of 984	4824	RdrCEF.exe	80
PID 4824 wrote to memory of 984	4824	RdrCEF.exe	80
PID 4824 wrote to memory of 984	4824	RdrCEF.exe	80
PID 4824 wrote to memory of 984	4824	RdrCEF.exe	80

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\doc\colormanage\figures\architecture.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:4400
- 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:4824
- - 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=7E71EF77EC7BEC2722A4474EC5C715E1 --mojo-platform-channel-handle=1756 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1980
- - 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=231EB85716EBBA64B68B3E99D8AD727F --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=231EB85716EBBA64B68B3E99D8AD727F --renderer-client-id=2 --mojo-platform-channel-handle=1764 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:984
- - 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=4AD025270B5296F6B874BA299E111C09 --mojo-platform-channel-handle=2300 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:752
- - 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=8A8DEFD5BB90249A635C84E6A2C48493 --mojo-platform-channel-handle=1936 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4092
- - 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=CEA5AB7575D89BDD318F8BA985BBEC14 --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=CEA5AB7575D89BDD318F8BA985BBEC14 --renderer-client-id=6 --mojo-platform-channel-handle=1768 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4932
- - 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=E803B4FF560D4D95CB2C6C6BFC843E88 --mojo-platform-channel-handle=2720 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3444

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:2300

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
64KB

MD5
d3d121c625590ef30a2275fed55a6104

SHA1
a3b69e79aa6dba48c7a076423dc6113b979a4895

SHA256
d8c1e944145a2ccca51d4301af9441ea10df3e49b850696609d7e8ee50bfe9f8

SHA512
8487b078fb5706e18dd2b23d97adde2769851a28b0de7e4da7effa16792d48ece10d268dfe4321c14f1928c2d336bae788f7ba825f524a84d37372d773d23076

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