408caadc1d8c0c8bdd253f9813ef0250fbefb6759d9d9f8440150f29e23630c3

Analysis

max time kernel
142s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
18-01-2024 00:49

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General

Target

640c48762ed5c313fffad53bc2bf946f.pdf
Size

87KB
MD5

640c48762ed5c313fffad53bc2bf946f
SHA1

bd366151d1469e1b41b303e6c5b27d7e2fbb6a7c
SHA256

408caadc1d8c0c8bdd253f9813ef0250fbefb6759d9d9f8440150f29e23630c3
SHA512

1f4a65794e466e9d5f06966c5e84238899bafa6ec8a76f51b66779ca8c1216abfb59b2de3db7dc08daa163445caea531d45e9c326d2ffd8627869dad9ba15f3e
SSDEEP

1536:U7p+4FkX93psXSIOuYiDRwsxPnSJKIt53Qo7rZXGiyLuwWWeUiUOGbkZaWUpO7Vk:v4F4psYoDRwsxPSQa53jZOCwi6bkZ17e

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-1-5-21-2398549320-3657759451-817663969-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
1344	AcroRd32.exe
1344	AcroRd32.exe
1344	AcroRd32.exe
1344	AcroRd32.exe
1344	AcroRd32.exe
1344	AcroRd32.exe
1344	AcroRd32.exe
1344	AcroRd32.exe
1344	AcroRd32.exe
1344	AcroRd32.exe
1344	AcroRd32.exe
1344	AcroRd32.exe
1344	AcroRd32.exe
1344	AcroRd32.exe
1344	AcroRd32.exe
1344	AcroRd32.exe
1344	AcroRd32.exe
1344	AcroRd32.exe
1344	AcroRd32.exe
1344	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1344	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
1344	AcroRd32.exe
1344	AcroRd32.exe
1344	AcroRd32.exe
1344	AcroRd32.exe
1344	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 1344 wrote to memory of 3056	1344	AcroRd32.exe	91
PID 1344 wrote to memory of 3056	1344	AcroRd32.exe	91
PID 1344 wrote to memory of 3056	1344	AcroRd32.exe	91
PID 3056 wrote to memory of 3188	3056	RdrCEF.exe	93
PID 3056 wrote to memory of 3188	3056	RdrCEF.exe	93
PID 3056 wrote to memory of 3188	3056	RdrCEF.exe	93
PID 3056 wrote to memory of 3188	3056	RdrCEF.exe	93
PID 3056 wrote to memory of 3188	3056	RdrCEF.exe	93
PID 3056 wrote to memory of 3188	3056	RdrCEF.exe	93
PID 3056 wrote to memory of 3188	3056	RdrCEF.exe	93
PID 3056 wrote to memory of 3188	3056	RdrCEF.exe	93
PID 3056 wrote to memory of 3188	3056	RdrCEF.exe	93
PID 3056 wrote to memory of 3188	3056	RdrCEF.exe	93
PID 3056 wrote to memory of 3188	3056	RdrCEF.exe	93
PID 3056 wrote to memory of 3188	3056	RdrCEF.exe	93
PID 3056 wrote to memory of 3188	3056	RdrCEF.exe	93
PID 3056 wrote to memory of 3188	3056	RdrCEF.exe	93
PID 3056 wrote to memory of 3188	3056	RdrCEF.exe	93
PID 3056 wrote to memory of 3188	3056	RdrCEF.exe	93
PID 3056 wrote to memory of 3188	3056	RdrCEF.exe	93
PID 3056 wrote to memory of 3188	3056	RdrCEF.exe	93
PID 3056 wrote to memory of 3188	3056	RdrCEF.exe	93
PID 3056 wrote to memory of 3188	3056	RdrCEF.exe	93
PID 3056 wrote to memory of 3188	3056	RdrCEF.exe	93
PID 3056 wrote to memory of 3188	3056	RdrCEF.exe	93
PID 3056 wrote to memory of 3188	3056	RdrCEF.exe	93
PID 3056 wrote to memory of 3188	3056	RdrCEF.exe	93
PID 3056 wrote to memory of 3188	3056	RdrCEF.exe	93
PID 3056 wrote to memory of 3188	3056	RdrCEF.exe	93
PID 3056 wrote to memory of 3188	3056	RdrCEF.exe	93
PID 3056 wrote to memory of 3188	3056	RdrCEF.exe	93
PID 3056 wrote to memory of 3188	3056	RdrCEF.exe	93
PID 3056 wrote to memory of 3188	3056	RdrCEF.exe	93
PID 3056 wrote to memory of 3188	3056	RdrCEF.exe	93
PID 3056 wrote to memory of 3188	3056	RdrCEF.exe	93
PID 3056 wrote to memory of 3188	3056	RdrCEF.exe	93
PID 3056 wrote to memory of 3188	3056	RdrCEF.exe	93
PID 3056 wrote to memory of 3188	3056	RdrCEF.exe	93
PID 3056 wrote to memory of 3188	3056	RdrCEF.exe	93
PID 3056 wrote to memory of 3188	3056	RdrCEF.exe	93
PID 3056 wrote to memory of 3188	3056	RdrCEF.exe	93
PID 3056 wrote to memory of 3188	3056	RdrCEF.exe	93
PID 3056 wrote to memory of 3188	3056	RdrCEF.exe	93
PID 3056 wrote to memory of 3188	3056	RdrCEF.exe	93
PID 3056 wrote to memory of 1988	3056	RdrCEF.exe	94
PID 3056 wrote to memory of 1988	3056	RdrCEF.exe	94
PID 3056 wrote to memory of 1988	3056	RdrCEF.exe	94
PID 3056 wrote to memory of 1988	3056	RdrCEF.exe	94
PID 3056 wrote to memory of 1988	3056	RdrCEF.exe	94
PID 3056 wrote to memory of 1988	3056	RdrCEF.exe	94
PID 3056 wrote to memory of 1988	3056	RdrCEF.exe	94
PID 3056 wrote to memory of 1988	3056	RdrCEF.exe	94
PID 3056 wrote to memory of 1988	3056	RdrCEF.exe	94
PID 3056 wrote to memory of 1988	3056	RdrCEF.exe	94
PID 3056 wrote to memory of 1988	3056	RdrCEF.exe	94
PID 3056 wrote to memory of 1988	3056	RdrCEF.exe	94
PID 3056 wrote to memory of 1988	3056	RdrCEF.exe	94
PID 3056 wrote to memory of 1988	3056	RdrCEF.exe	94
PID 3056 wrote to memory of 1988	3056	RdrCEF.exe	94
PID 3056 wrote to memory of 1988	3056	RdrCEF.exe	94
PID 3056 wrote to memory of 1988	3056	RdrCEF.exe	94
PID 3056 wrote to memory of 1988	3056	RdrCEF.exe	94
PID 3056 wrote to memory of 1988	3056	RdrCEF.exe	94
PID 3056 wrote to memory of 1988	3056	RdrCEF.exe	94

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\640c48762ed5c313fffad53bc2bf946f.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:1344
- 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:3056
- - 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=5E7F2B9E24B401A00DFC08699E08FD2A --mojo-platform-channel-handle=1748 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3188
- - 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=CCB0A876E69CCE58D4E50CAC4A2D3A01 --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=CCB0A876E69CCE58D4E50CAC4A2D3A01 --renderer-client-id=2 --mojo-platform-channel-handle=1764 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:1988
- - 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=A0AC2A1732399B9A443CF9C64BA1C2B2 --mojo-platform-channel-handle=1804 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4816
- - 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=888E7D55095D7E1D8FC71506ED97F01E --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=888E7D55095D7E1D8FC71506ED97F01E --renderer-client-id=5 --mojo-platform-channel-handle=2364 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4084
- - 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=0528E5779E4FC47B84333FA549091966 --mojo-platform-channel-handle=2460 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4348
- - 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=1026607761E179E918246366B24E1068 --mojo-platform-channel-handle=1952 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1276

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
b7bcf534f6c8548f1a5ce111d038b57e

SHA1
fcd54e48988c9701966d071e26d194bee2542af7

SHA256
fe4165f46478841f536fc3e08c355a9fafc1c0d9f2ad7e67207269808d9641fc

SHA512
0d27653057d79129af75563dd504ac4f9141a2438b18e86f654af75e239499e92cd26ae818b1d118ba2973f2dd171a81fb2618697caf9b10f3ca60062eea9616

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