5f8d03481ace714508ee5f51ea177bafa49369359a997bb9a2fdb0ea9007881c

Analysis

max time kernel
142s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
18-02-2024 21:16

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General

Target

5f8d03481ace714508ee5f51ea177bafa49369359a997bb9a2fdb0ea9007881c.pdf
Size

34KB
MD5

d88740f7206f1f633c53b3b3bf09bb68
SHA1

d402bfc53cd7e2676b6fc8989a9527d365294d7f
SHA256

5f8d03481ace714508ee5f51ea177bafa49369359a997bb9a2fdb0ea9007881c
SHA512

a4571ae6b166eb207ae59f02ada7bd95cb698064c3eab143ec691e2ba6b58ad64d7061ab633c768574b3e005282e48351ee4802e0bed31245960e32bdc05643b
SSDEEP

768:UU5NN6dGbdPSkM9MRXQSY/FGHPB5DLIfSKsaIKzVrdqTN9T6x:rkOKKfdZNYgG54TNR6x

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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	AcroRd32.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	AcroRd32.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
1852	AcroRd32.exe
1852	AcroRd32.exe
1852	AcroRd32.exe
1852	AcroRd32.exe
1852	AcroRd32.exe
1852	AcroRd32.exe
1852	AcroRd32.exe
1852	AcroRd32.exe
1852	AcroRd32.exe
1852	AcroRd32.exe
1852	AcroRd32.exe
1852	AcroRd32.exe
1852	AcroRd32.exe
1852	AcroRd32.exe
1852	AcroRd32.exe
1852	AcroRd32.exe
1852	AcroRd32.exe
1852	AcroRd32.exe
1852	AcroRd32.exe
1852	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1852	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
1852	AcroRd32.exe
1852	AcroRd32.exe
1852	AcroRd32.exe
1852	AcroRd32.exe
1852	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 1852 wrote to memory of 1484	1852	AcroRd32.exe	84
PID 1852 wrote to memory of 1484	1852	AcroRd32.exe	84
PID 1852 wrote to memory of 1484	1852	AcroRd32.exe	84
PID 1484 wrote to memory of 3080	1484	RdrCEF.exe	85
PID 1484 wrote to memory of 3080	1484	RdrCEF.exe	85
PID 1484 wrote to memory of 3080	1484	RdrCEF.exe	85
PID 1484 wrote to memory of 3080	1484	RdrCEF.exe	85
PID 1484 wrote to memory of 3080	1484	RdrCEF.exe	85
PID 1484 wrote to memory of 3080	1484	RdrCEF.exe	85
PID 1484 wrote to memory of 3080	1484	RdrCEF.exe	85
PID 1484 wrote to memory of 3080	1484	RdrCEF.exe	85
PID 1484 wrote to memory of 3080	1484	RdrCEF.exe	85
PID 1484 wrote to memory of 3080	1484	RdrCEF.exe	85
PID 1484 wrote to memory of 3080	1484	RdrCEF.exe	85
PID 1484 wrote to memory of 3080	1484	RdrCEF.exe	85
PID 1484 wrote to memory of 3080	1484	RdrCEF.exe	85
PID 1484 wrote to memory of 3080	1484	RdrCEF.exe	85
PID 1484 wrote to memory of 3080	1484	RdrCEF.exe	85
PID 1484 wrote to memory of 3080	1484	RdrCEF.exe	85
PID 1484 wrote to memory of 3080	1484	RdrCEF.exe	85
PID 1484 wrote to memory of 3080	1484	RdrCEF.exe	85
PID 1484 wrote to memory of 3080	1484	RdrCEF.exe	85
PID 1484 wrote to memory of 3080	1484	RdrCEF.exe	85
PID 1484 wrote to memory of 3080	1484	RdrCEF.exe	85
PID 1484 wrote to memory of 3080	1484	RdrCEF.exe	85
PID 1484 wrote to memory of 3080	1484	RdrCEF.exe	85
PID 1484 wrote to memory of 3080	1484	RdrCEF.exe	85
PID 1484 wrote to memory of 3080	1484	RdrCEF.exe	85
PID 1484 wrote to memory of 3080	1484	RdrCEF.exe	85
PID 1484 wrote to memory of 3080	1484	RdrCEF.exe	85
PID 1484 wrote to memory of 3080	1484	RdrCEF.exe	85
PID 1484 wrote to memory of 3080	1484	RdrCEF.exe	85
PID 1484 wrote to memory of 3080	1484	RdrCEF.exe	85
PID 1484 wrote to memory of 3080	1484	RdrCEF.exe	85
PID 1484 wrote to memory of 3080	1484	RdrCEF.exe	85
PID 1484 wrote to memory of 3080	1484	RdrCEF.exe	85
PID 1484 wrote to memory of 3080	1484	RdrCEF.exe	85
PID 1484 wrote to memory of 3080	1484	RdrCEF.exe	85
PID 1484 wrote to memory of 3080	1484	RdrCEF.exe	85
PID 1484 wrote to memory of 3080	1484	RdrCEF.exe	85
PID 1484 wrote to memory of 3080	1484	RdrCEF.exe	85
PID 1484 wrote to memory of 3080	1484	RdrCEF.exe	85
PID 1484 wrote to memory of 3080	1484	RdrCEF.exe	85
PID 1484 wrote to memory of 3080	1484	RdrCEF.exe	85
PID 1484 wrote to memory of 1984	1484	RdrCEF.exe	86
PID 1484 wrote to memory of 1984	1484	RdrCEF.exe	86
PID 1484 wrote to memory of 1984	1484	RdrCEF.exe	86
PID 1484 wrote to memory of 1984	1484	RdrCEF.exe	86
PID 1484 wrote to memory of 1984	1484	RdrCEF.exe	86
PID 1484 wrote to memory of 1984	1484	RdrCEF.exe	86
PID 1484 wrote to memory of 1984	1484	RdrCEF.exe	86
PID 1484 wrote to memory of 1984	1484	RdrCEF.exe	86
PID 1484 wrote to memory of 1984	1484	RdrCEF.exe	86
PID 1484 wrote to memory of 1984	1484	RdrCEF.exe	86
PID 1484 wrote to memory of 1984	1484	RdrCEF.exe	86
PID 1484 wrote to memory of 1984	1484	RdrCEF.exe	86
PID 1484 wrote to memory of 1984	1484	RdrCEF.exe	86
PID 1484 wrote to memory of 1984	1484	RdrCEF.exe	86
PID 1484 wrote to memory of 1984	1484	RdrCEF.exe	86
PID 1484 wrote to memory of 1984	1484	RdrCEF.exe	86
PID 1484 wrote to memory of 1984	1484	RdrCEF.exe	86
PID 1484 wrote to memory of 1984	1484	RdrCEF.exe	86
PID 1484 wrote to memory of 1984	1484	RdrCEF.exe	86
PID 1484 wrote to memory of 1984	1484	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\5f8d03481ace714508ee5f51ea177bafa49369359a997bb9a2fdb0ea9007881c.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:1852
- 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:1484
- - 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=F21C54E6C415E76E3AD7862F5AF832AC --mojo-platform-channel-handle=1748 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3080
- - 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=563589967E7B2AE83E894FA1CDE04581 --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=563589967E7B2AE83E894FA1CDE04581 --renderer-client-id=2 --mojo-platform-channel-handle=1752 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:1984
- - 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=5504E521DD9C9DF07072BD2194FE1586 --mojo-platform-channel-handle=2168 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3964
- - 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=CD73D81106715A2E92E3219323B8EFFB --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=CD73D81106715A2E92E3219323B8EFFB --renderer-client-id=5 --mojo-platform-channel-handle=2388 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:1468
- - 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=FD1F77C9FB982B148ADDB0EF2FA06B0D --mojo-platform-channel-handle=2392 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3344
- - 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=A57A01AD2487F08BD66D2A50F68977B2 --mojo-platform-channel-handle=2176 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1188

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
bdad3562405279e1099d1a9c60f32c8c

SHA1
f0358f3c5f11b15b7f52eea831dcafd2d334eef0

SHA256
29de234d4aaaf51bc2325fcc74b88c18e9451d4c3ec691c483e663d355b1610a

SHA512
390ea5265ef6153d84ae877472bb033c05e01a51ad20fc46dd10e2373f18e75531bdd8bf917b6d5c4e5f53b53c0ad3d3a01714684ff44f1f585af8fe703a50f5

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