3ecc03782a074817fdb15f0a9ec81cdccc8f4d94ffba5810bff953299b49aa71

Analysis

max time kernel
140s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
11/05/2023, 17:21

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General

Target

LOYER MAI.pdf
Size

271KB
MD5

a58f90ac866fd56e08d9654985421af5
SHA1

0ffc4168cd168f41f78e9aa42d3ae26f4274e21b
SHA256

3ecc03782a074817fdb15f0a9ec81cdccc8f4d94ffba5810bff953299b49aa71
SHA512

697bab13cd43fdc7f850da60326897e7a745977bb5e7c58b9acfd15d1b50e3ce3ff4f235b12c333481ec33ac90c8c420609e3587ec230c2b0f0d2410068ef313
SSDEEP

6144:O/4JWEEEEEUEEEEEEn4syGGUvQQL57e8yf0SZcRczHq8SJamGTdlXhTK6+F4Dm0B:VWEEEEEUEEEEEEn4sy+QQL54f0CEiK8X

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-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
3628	AcroRd32.exe
3628	AcroRd32.exe
3628	AcroRd32.exe
3628	AcroRd32.exe
3628	AcroRd32.exe
3628	AcroRd32.exe
3628	AcroRd32.exe
3628	AcroRd32.exe
3628	AcroRd32.exe
3628	AcroRd32.exe
3628	AcroRd32.exe
3628	AcroRd32.exe
3628	AcroRd32.exe
3628	AcroRd32.exe
3628	AcroRd32.exe
3628	AcroRd32.exe
3628	AcroRd32.exe
3628	AcroRd32.exe
3628	AcroRd32.exe
3628	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3628	AcroRd32.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
3628	AcroRd32.exe
3628	AcroRd32.exe
3628	AcroRd32.exe
3628	AcroRd32.exe
3628	AcroRd32.exe
3628	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 3628 wrote to memory of 4780	3628	AcroRd32.exe	88
PID 3628 wrote to memory of 4780	3628	AcroRd32.exe	88
PID 3628 wrote to memory of 4780	3628	AcroRd32.exe	88
PID 4780 wrote to memory of 2532	4780	RdrCEF.exe	90
PID 4780 wrote to memory of 2532	4780	RdrCEF.exe	90
PID 4780 wrote to memory of 2532	4780	RdrCEF.exe	90
PID 4780 wrote to memory of 2532	4780	RdrCEF.exe	90
PID 4780 wrote to memory of 2532	4780	RdrCEF.exe	90
PID 4780 wrote to memory of 2532	4780	RdrCEF.exe	90
PID 4780 wrote to memory of 2532	4780	RdrCEF.exe	90
PID 4780 wrote to memory of 2532	4780	RdrCEF.exe	90
PID 4780 wrote to memory of 2532	4780	RdrCEF.exe	90
PID 4780 wrote to memory of 2532	4780	RdrCEF.exe	90
PID 4780 wrote to memory of 2532	4780	RdrCEF.exe	90
PID 4780 wrote to memory of 2532	4780	RdrCEF.exe	90
PID 4780 wrote to memory of 2532	4780	RdrCEF.exe	90
PID 4780 wrote to memory of 2532	4780	RdrCEF.exe	90
PID 4780 wrote to memory of 2532	4780	RdrCEF.exe	90
PID 4780 wrote to memory of 2532	4780	RdrCEF.exe	90
PID 4780 wrote to memory of 2532	4780	RdrCEF.exe	90
PID 4780 wrote to memory of 2532	4780	RdrCEF.exe	90
PID 4780 wrote to memory of 2532	4780	RdrCEF.exe	90
PID 4780 wrote to memory of 2532	4780	RdrCEF.exe	90
PID 4780 wrote to memory of 2532	4780	RdrCEF.exe	90
PID 4780 wrote to memory of 2532	4780	RdrCEF.exe	90
PID 4780 wrote to memory of 2532	4780	RdrCEF.exe	90
PID 4780 wrote to memory of 2532	4780	RdrCEF.exe	90
PID 4780 wrote to memory of 2532	4780	RdrCEF.exe	90
PID 4780 wrote to memory of 2532	4780	RdrCEF.exe	90
PID 4780 wrote to memory of 2532	4780	RdrCEF.exe	90
PID 4780 wrote to memory of 2532	4780	RdrCEF.exe	90
PID 4780 wrote to memory of 2532	4780	RdrCEF.exe	90
PID 4780 wrote to memory of 2532	4780	RdrCEF.exe	90
PID 4780 wrote to memory of 2532	4780	RdrCEF.exe	90
PID 4780 wrote to memory of 2532	4780	RdrCEF.exe	90
PID 4780 wrote to memory of 2532	4780	RdrCEF.exe	90
PID 4780 wrote to memory of 2532	4780	RdrCEF.exe	90
PID 4780 wrote to memory of 2532	4780	RdrCEF.exe	90
PID 4780 wrote to memory of 2532	4780	RdrCEF.exe	90
PID 4780 wrote to memory of 2532	4780	RdrCEF.exe	90
PID 4780 wrote to memory of 2532	4780	RdrCEF.exe	90
PID 4780 wrote to memory of 2532	4780	RdrCEF.exe	90
PID 4780 wrote to memory of 2532	4780	RdrCEF.exe	90
PID 4780 wrote to memory of 2532	4780	RdrCEF.exe	90
PID 4780 wrote to memory of 216	4780	RdrCEF.exe	91
PID 4780 wrote to memory of 216	4780	RdrCEF.exe	91
PID 4780 wrote to memory of 216	4780	RdrCEF.exe	91
PID 4780 wrote to memory of 216	4780	RdrCEF.exe	91
PID 4780 wrote to memory of 216	4780	RdrCEF.exe	91
PID 4780 wrote to memory of 216	4780	RdrCEF.exe	91
PID 4780 wrote to memory of 216	4780	RdrCEF.exe	91
PID 4780 wrote to memory of 216	4780	RdrCEF.exe	91
PID 4780 wrote to memory of 216	4780	RdrCEF.exe	91
PID 4780 wrote to memory of 216	4780	RdrCEF.exe	91
PID 4780 wrote to memory of 216	4780	RdrCEF.exe	91
PID 4780 wrote to memory of 216	4780	RdrCEF.exe	91
PID 4780 wrote to memory of 216	4780	RdrCEF.exe	91
PID 4780 wrote to memory of 216	4780	RdrCEF.exe	91
PID 4780 wrote to memory of 216	4780	RdrCEF.exe	91
PID 4780 wrote to memory of 216	4780	RdrCEF.exe	91
PID 4780 wrote to memory of 216	4780	RdrCEF.exe	91
PID 4780 wrote to memory of 216	4780	RdrCEF.exe	91
PID 4780 wrote to memory of 216	4780	RdrCEF.exe	91
PID 4780 wrote to memory of 216	4780	RdrCEF.exe	91

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\LOYER MAI.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:3628
- 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:4780
- - 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=59D7D46A888C522A1011636A76DF17AC --mojo-platform-channel-handle=1728 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2532
- - 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=0C774A4845E3B631BB912A84EEF52ED5 --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=2 --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=0C774A4845E3B631BB912A84EEF52ED5 --renderer-client-id=2 --mojo-platform-channel-handle=1740 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:216
- - 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=E70C35289907E56B5A3045AB6424D352 --mojo-platform-channel-handle=2148 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:5092
- - 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=CB4B1E05CE9B59EC3647D24164FFE826 --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=2 --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=CB4B1E05CE9B59EC3647D24164FFE826 --renderer-client-id=5 --mojo-platform-channel-handle=1800 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:1060
- - 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=5EC74B27FCF1815A5F8AC9B0F75627D0 --mojo-platform-channel-handle=2404 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2608
- - 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=F476D2644BEF897BC8F889C6D586CE05 --mojo-platform-channel-handle=2212 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4408

Network

MITRE ATT&CK Enterprise v6

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
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
C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\ReaderMessages

Filesize
64KB

MD5
c238e8218a40e5f412ad9882a79cfb48

SHA1
0abb2f4495475b1807ceac59e63e1526e38a6423

SHA256
2f9d1501d7fef361d5b32d1e907cf3c2b1a4ee1a0b1fddff646074a699420057

SHA512
de19949c94b7c1902e2da16634ba9890d9ffe8e508d1ce17911b4fe588765813cf6c9c690d81781b43fa901d37e358f4545dbe4621610000c0a58be4ebc03aa5

Download Submit