4723938bd73a1d87abeef5216c3e5ab53cdd84f5c7c35f687de0338ad0ad34d3

Analysis

max time kernel
141s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
19-12-2023 13:14

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General

Target

2f87ab925f264675c0ce0f0cdcf3fbb0.pdf
Size

83KB
MD5

2f87ab925f264675c0ce0f0cdcf3fbb0
SHA1

dc9a65fefbc4cd432ce7cdf1ee32f192e603d30f
SHA256

4723938bd73a1d87abeef5216c3e5ab53cdd84f5c7c35f687de0338ad0ad34d3
SHA512

7e651c26cc7955b26a48fe431eed401de1c9eea2e839d15e01a4ad7ba06a7d5bd692d0805e3df3c6400e15ddb8b768ca4059562c79929d39657e9fa031ff0dac
SSDEEP

1536:uN40VKexr8pUg9NavPMKUBlho25kJPLUWkNpOPsgdvfVQWWAFFuqDeTnJ7:ALFxrBgniMfBlhJmNPsofHFU1

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
3748	AcroRd32.exe
3748	AcroRd32.exe
3748	AcroRd32.exe
3748	AcroRd32.exe
3748	AcroRd32.exe
3748	AcroRd32.exe
3748	AcroRd32.exe
3748	AcroRd32.exe
3748	AcroRd32.exe
3748	AcroRd32.exe
3748	AcroRd32.exe
3748	AcroRd32.exe
3748	AcroRd32.exe
3748	AcroRd32.exe
3748	AcroRd32.exe
3748	AcroRd32.exe
3748	AcroRd32.exe
3748	AcroRd32.exe
3748	AcroRd32.exe
3748	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3748	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
3748	AcroRd32.exe
3748	AcroRd32.exe
3748	AcroRd32.exe
3748	AcroRd32.exe
3748	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 3748 wrote to memory of 1552	3748	AcroRd32.exe	94
PID 3748 wrote to memory of 1552	3748	AcroRd32.exe	94
PID 3748 wrote to memory of 1552	3748	AcroRd32.exe	94
PID 1552 wrote to memory of 3400	1552	RdrCEF.exe	95
PID 1552 wrote to memory of 3400	1552	RdrCEF.exe	95
PID 1552 wrote to memory of 3400	1552	RdrCEF.exe	95
PID 1552 wrote to memory of 3400	1552	RdrCEF.exe	95
PID 1552 wrote to memory of 3400	1552	RdrCEF.exe	95
PID 1552 wrote to memory of 3400	1552	RdrCEF.exe	95
PID 1552 wrote to memory of 3400	1552	RdrCEF.exe	95
PID 1552 wrote to memory of 3400	1552	RdrCEF.exe	95
PID 1552 wrote to memory of 3400	1552	RdrCEF.exe	95
PID 1552 wrote to memory of 3400	1552	RdrCEF.exe	95
PID 1552 wrote to memory of 3400	1552	RdrCEF.exe	95
PID 1552 wrote to memory of 3400	1552	RdrCEF.exe	95
PID 1552 wrote to memory of 3400	1552	RdrCEF.exe	95
PID 1552 wrote to memory of 3400	1552	RdrCEF.exe	95
PID 1552 wrote to memory of 3400	1552	RdrCEF.exe	95
PID 1552 wrote to memory of 3400	1552	RdrCEF.exe	95
PID 1552 wrote to memory of 3400	1552	RdrCEF.exe	95
PID 1552 wrote to memory of 3400	1552	RdrCEF.exe	95
PID 1552 wrote to memory of 3400	1552	RdrCEF.exe	95
PID 1552 wrote to memory of 3400	1552	RdrCEF.exe	95
PID 1552 wrote to memory of 3400	1552	RdrCEF.exe	95
PID 1552 wrote to memory of 3400	1552	RdrCEF.exe	95
PID 1552 wrote to memory of 3400	1552	RdrCEF.exe	95
PID 1552 wrote to memory of 3400	1552	RdrCEF.exe	95
PID 1552 wrote to memory of 3400	1552	RdrCEF.exe	95
PID 1552 wrote to memory of 3400	1552	RdrCEF.exe	95
PID 1552 wrote to memory of 3400	1552	RdrCEF.exe	95
PID 1552 wrote to memory of 3400	1552	RdrCEF.exe	95
PID 1552 wrote to memory of 3400	1552	RdrCEF.exe	95
PID 1552 wrote to memory of 3400	1552	RdrCEF.exe	95
PID 1552 wrote to memory of 3400	1552	RdrCEF.exe	95
PID 1552 wrote to memory of 3400	1552	RdrCEF.exe	95
PID 1552 wrote to memory of 3400	1552	RdrCEF.exe	95
PID 1552 wrote to memory of 3400	1552	RdrCEF.exe	95
PID 1552 wrote to memory of 3400	1552	RdrCEF.exe	95
PID 1552 wrote to memory of 3400	1552	RdrCEF.exe	95
PID 1552 wrote to memory of 3400	1552	RdrCEF.exe	95
PID 1552 wrote to memory of 3400	1552	RdrCEF.exe	95
PID 1552 wrote to memory of 3400	1552	RdrCEF.exe	95
PID 1552 wrote to memory of 3400	1552	RdrCEF.exe	95
PID 1552 wrote to memory of 3400	1552	RdrCEF.exe	95
PID 1552 wrote to memory of 2292	1552	RdrCEF.exe	96
PID 1552 wrote to memory of 2292	1552	RdrCEF.exe	96
PID 1552 wrote to memory of 2292	1552	RdrCEF.exe	96
PID 1552 wrote to memory of 2292	1552	RdrCEF.exe	96
PID 1552 wrote to memory of 2292	1552	RdrCEF.exe	96
PID 1552 wrote to memory of 2292	1552	RdrCEF.exe	96
PID 1552 wrote to memory of 2292	1552	RdrCEF.exe	96
PID 1552 wrote to memory of 2292	1552	RdrCEF.exe	96
PID 1552 wrote to memory of 2292	1552	RdrCEF.exe	96
PID 1552 wrote to memory of 2292	1552	RdrCEF.exe	96
PID 1552 wrote to memory of 2292	1552	RdrCEF.exe	96
PID 1552 wrote to memory of 2292	1552	RdrCEF.exe	96
PID 1552 wrote to memory of 2292	1552	RdrCEF.exe	96
PID 1552 wrote to memory of 2292	1552	RdrCEF.exe	96
PID 1552 wrote to memory of 2292	1552	RdrCEF.exe	96
PID 1552 wrote to memory of 2292	1552	RdrCEF.exe	96
PID 1552 wrote to memory of 2292	1552	RdrCEF.exe	96
PID 1552 wrote to memory of 2292	1552	RdrCEF.exe	96
PID 1552 wrote to memory of 2292	1552	RdrCEF.exe	96
PID 1552 wrote to memory of 2292	1552	RdrCEF.exe	96

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\2f87ab925f264675c0ce0f0cdcf3fbb0.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:3748
- 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:1552
- - 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=F349CF6681674E8BF7B88D8CA700662E --mojo-platform-channel-handle=1732 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3400
- - 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=684AA53E5F81AACB5BCE616E87EAEA70 --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=684AA53E5F81AACB5BCE616E87EAEA70 --renderer-client-id=2 --mojo-platform-channel-handle=1744 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:2292
- - 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=129E54281347EE5E5C89D3596AEFDBD1 --mojo-platform-channel-handle=2172 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2504
- - 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=B6755FDDF701C6DF7BD53211F4451A6F --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=B6755FDDF701C6DF7BD53211F4451A6F --renderer-client-id=5 --mojo-platform-channel-handle=2312 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4696
- - 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=4F3588B8EDCF4070A3101F20DBC11950 --mojo-platform-channel-handle=2340 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4920
- - 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=34A9EEA2A86ACB96473C604BC9799FE3 --mojo-platform-channel-handle=2780 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2384

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:4220

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
24d62be2ebaf0c4da4843050bc39d434

SHA1
349265ea83f3cba5da17adba1af19ff91750e7d5

SHA256
ea4cec778918de94ff6c523964eccfe951b0b23a2b5f9cfaf8f2076df9c7bf53

SHA512
7beadbd928ceab99283e56e53f0105ddb59089046751e09a234b93aea38085d4b8e38b7a901ca0a1d83a679fba76d4549721dcf013a605a45014f6f57eb0816f

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