36e354e451eecbf2008698392caacfa6087429c65d4a70378f19a6bca20529ab

Analysis

max time kernel
141s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
02/02/2024, 21:42

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General

Target

8a9bd1df1eafb5378a86a335dbda2b54.pdf
Size

85KB
MD5

8a9bd1df1eafb5378a86a335dbda2b54
SHA1

e776c7a3293d697f40a9826478b7e79411517200
SHA256

36e354e451eecbf2008698392caacfa6087429c65d4a70378f19a6bca20529ab
SHA512

5e0b8b3a721b62c778ae2f97c9b43fa93a89ba99d302f51b3c23d801a6c267080a1dc379df68aad46affd07068eb58def748d4fa1bdc7f658543439fa290ef16
SSDEEP

1536:uWn6PAhQiWqMKI/xnQOcPOl72lmi21iE2QRdZL3xYLM2h+zWypOlLb4zWSzc9EXw:J6PAhQiwKI5ncO52MirId13xYflLb4hA

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-1-5-21-1168293393-3419776239-306423207-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
4240	AcroRd32.exe
4240	AcroRd32.exe
4240	AcroRd32.exe
4240	AcroRd32.exe
4240	AcroRd32.exe
4240	AcroRd32.exe
4240	AcroRd32.exe
4240	AcroRd32.exe
4240	AcroRd32.exe
4240	AcroRd32.exe
4240	AcroRd32.exe
4240	AcroRd32.exe
4240	AcroRd32.exe
4240	AcroRd32.exe
4240	AcroRd32.exe
4240	AcroRd32.exe
4240	AcroRd32.exe
4240	AcroRd32.exe
4240	AcroRd32.exe
4240	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4240	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
4240	AcroRd32.exe
4240	AcroRd32.exe
4240	AcroRd32.exe
4240	AcroRd32.exe
4240	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4240 wrote to memory of 3952	4240	AcroRd32.exe	90
PID 4240 wrote to memory of 3952	4240	AcroRd32.exe	90
PID 4240 wrote to memory of 3952	4240	AcroRd32.exe	90
PID 3952 wrote to memory of 756	3952	RdrCEF.exe	92
PID 3952 wrote to memory of 756	3952	RdrCEF.exe	92
PID 3952 wrote to memory of 756	3952	RdrCEF.exe	92
PID 3952 wrote to memory of 756	3952	RdrCEF.exe	92
PID 3952 wrote to memory of 756	3952	RdrCEF.exe	92
PID 3952 wrote to memory of 756	3952	RdrCEF.exe	92
PID 3952 wrote to memory of 756	3952	RdrCEF.exe	92
PID 3952 wrote to memory of 756	3952	RdrCEF.exe	92
PID 3952 wrote to memory of 756	3952	RdrCEF.exe	92
PID 3952 wrote to memory of 756	3952	RdrCEF.exe	92
PID 3952 wrote to memory of 756	3952	RdrCEF.exe	92
PID 3952 wrote to memory of 756	3952	RdrCEF.exe	92
PID 3952 wrote to memory of 756	3952	RdrCEF.exe	92
PID 3952 wrote to memory of 756	3952	RdrCEF.exe	92
PID 3952 wrote to memory of 756	3952	RdrCEF.exe	92
PID 3952 wrote to memory of 756	3952	RdrCEF.exe	92
PID 3952 wrote to memory of 756	3952	RdrCEF.exe	92
PID 3952 wrote to memory of 756	3952	RdrCEF.exe	92
PID 3952 wrote to memory of 756	3952	RdrCEF.exe	92
PID 3952 wrote to memory of 756	3952	RdrCEF.exe	92
PID 3952 wrote to memory of 756	3952	RdrCEF.exe	92
PID 3952 wrote to memory of 756	3952	RdrCEF.exe	92
PID 3952 wrote to memory of 756	3952	RdrCEF.exe	92
PID 3952 wrote to memory of 756	3952	RdrCEF.exe	92
PID 3952 wrote to memory of 756	3952	RdrCEF.exe	92
PID 3952 wrote to memory of 756	3952	RdrCEF.exe	92
PID 3952 wrote to memory of 756	3952	RdrCEF.exe	92
PID 3952 wrote to memory of 756	3952	RdrCEF.exe	92
PID 3952 wrote to memory of 756	3952	RdrCEF.exe	92
PID 3952 wrote to memory of 756	3952	RdrCEF.exe	92
PID 3952 wrote to memory of 756	3952	RdrCEF.exe	92
PID 3952 wrote to memory of 756	3952	RdrCEF.exe	92
PID 3952 wrote to memory of 756	3952	RdrCEF.exe	92
PID 3952 wrote to memory of 756	3952	RdrCEF.exe	92
PID 3952 wrote to memory of 756	3952	RdrCEF.exe	92
PID 3952 wrote to memory of 756	3952	RdrCEF.exe	92
PID 3952 wrote to memory of 756	3952	RdrCEF.exe	92
PID 3952 wrote to memory of 756	3952	RdrCEF.exe	92
PID 3952 wrote to memory of 756	3952	RdrCEF.exe	92
PID 3952 wrote to memory of 756	3952	RdrCEF.exe	92
PID 3952 wrote to memory of 756	3952	RdrCEF.exe	92
PID 3952 wrote to memory of 1880	3952	RdrCEF.exe	93
PID 3952 wrote to memory of 1880	3952	RdrCEF.exe	93
PID 3952 wrote to memory of 1880	3952	RdrCEF.exe	93
PID 3952 wrote to memory of 1880	3952	RdrCEF.exe	93
PID 3952 wrote to memory of 1880	3952	RdrCEF.exe	93
PID 3952 wrote to memory of 1880	3952	RdrCEF.exe	93
PID 3952 wrote to memory of 1880	3952	RdrCEF.exe	93
PID 3952 wrote to memory of 1880	3952	RdrCEF.exe	93
PID 3952 wrote to memory of 1880	3952	RdrCEF.exe	93
PID 3952 wrote to memory of 1880	3952	RdrCEF.exe	93
PID 3952 wrote to memory of 1880	3952	RdrCEF.exe	93
PID 3952 wrote to memory of 1880	3952	RdrCEF.exe	93
PID 3952 wrote to memory of 1880	3952	RdrCEF.exe	93
PID 3952 wrote to memory of 1880	3952	RdrCEF.exe	93
PID 3952 wrote to memory of 1880	3952	RdrCEF.exe	93
PID 3952 wrote to memory of 1880	3952	RdrCEF.exe	93
PID 3952 wrote to memory of 1880	3952	RdrCEF.exe	93
PID 3952 wrote to memory of 1880	3952	RdrCEF.exe	93
PID 3952 wrote to memory of 1880	3952	RdrCEF.exe	93
PID 3952 wrote to memory of 1880	3952	RdrCEF.exe	93

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\8a9bd1df1eafb5378a86a335dbda2b54.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:4240
- 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:3952
- - 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=9D90A131606D00BDB30E21C98A7B9FE8 --mojo-platform-channel-handle=1760 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:756
- - 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=A96BD20555B4C4A8B7E544C488955E1C --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=A96BD20555B4C4A8B7E544C488955E1C --renderer-client-id=2 --mojo-platform-channel-handle=1776 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:1880
- - 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=A7FB7A39145C1C0D9777FF8A0FBE1F47 --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=A7FB7A39145C1C0D9777FF8A0FBE1F47 --renderer-client-id=4 --mojo-platform-channel-handle=2312 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:1228
- - 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=F1C14085CD9B6F5B02D485AE86570BD8 --mojo-platform-channel-handle=2572 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3816
- - 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=D9D2FD120B509BF6491035D196F45E7C --mojo-platform-channel-handle=2788 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1088
- - 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=B1A397B3E3BD8437D70FFD981BC33CEB --mojo-platform-channel-handle=1896 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1336

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:1520

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
184488aad8033b00d9ca938a9b405b7e

SHA1
d21c223f180c986febb8f4b5ebef3489e634733d

SHA256
5efe63e21a079dfdfdc268c63f6abc6162672e6fe455632d7e343080e5a74c1c

SHA512
92d6be2b409f640c28c154ac8adea748ec7142d2307634a65c1cbcd9c1e1705f8564fb7d87c3232ff942b67787499e1d54b7dc014e962ce551581bbc3821ed2e

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