85360a225b5e2184c3b91058ade4f315bf46e81252bed0392ed4bc5214989d4b

Analysis

max time kernel
141s
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
25-01-2024 20:12

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General

Target

756989d5bc9b7841a75c461d6c7b0559.pdf
Size

112KB
MD5

756989d5bc9b7841a75c461d6c7b0559
SHA1

41a2f4d9d66d55142e973b40117f1761b7de133d
SHA256

85360a225b5e2184c3b91058ade4f315bf46e81252bed0392ed4bc5214989d4b
SHA512

022520f49390de05fc974fc4d804878415f24145f0b139134a59f4aaf39803215e95a728b9ae6a6e5860419a1e735c1083413026494d335deee22bf75841e2a9
SSDEEP

768:Dk9WZSVsV1YPveYmYGbLB/vbQNK775BoQ4mijVJipEhiD6T+bIxp0sO9PGVigGZw:w

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-1-5-21-1815711207-1844170477-3539718864-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
5048	AcroRd32.exe
5048	AcroRd32.exe
5048	AcroRd32.exe
5048	AcroRd32.exe
5048	AcroRd32.exe
5048	AcroRd32.exe
5048	AcroRd32.exe
5048	AcroRd32.exe
5048	AcroRd32.exe
5048	AcroRd32.exe
5048	AcroRd32.exe
5048	AcroRd32.exe
5048	AcroRd32.exe
5048	AcroRd32.exe
5048	AcroRd32.exe
5048	AcroRd32.exe
5048	AcroRd32.exe
5048	AcroRd32.exe
5048	AcroRd32.exe
5048	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
5048	AcroRd32.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
5048	AcroRd32.exe
5048	AcroRd32.exe
5048	AcroRd32.exe
5048	AcroRd32.exe
5048	AcroRd32.exe
5048	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 5048 wrote to memory of 2128	5048	AcroRd32.exe	89
PID 5048 wrote to memory of 2128	5048	AcroRd32.exe	89
PID 5048 wrote to memory of 2128	5048	AcroRd32.exe	89
PID 2128 wrote to memory of 1924	2128	RdrCEF.exe	90
PID 2128 wrote to memory of 1924	2128	RdrCEF.exe	90
PID 2128 wrote to memory of 1924	2128	RdrCEF.exe	90
PID 2128 wrote to memory of 1924	2128	RdrCEF.exe	90
PID 2128 wrote to memory of 1924	2128	RdrCEF.exe	90
PID 2128 wrote to memory of 1924	2128	RdrCEF.exe	90
PID 2128 wrote to memory of 1924	2128	RdrCEF.exe	90
PID 2128 wrote to memory of 1924	2128	RdrCEF.exe	90
PID 2128 wrote to memory of 1924	2128	RdrCEF.exe	90
PID 2128 wrote to memory of 1924	2128	RdrCEF.exe	90
PID 2128 wrote to memory of 1924	2128	RdrCEF.exe	90
PID 2128 wrote to memory of 1924	2128	RdrCEF.exe	90
PID 2128 wrote to memory of 1924	2128	RdrCEF.exe	90
PID 2128 wrote to memory of 1924	2128	RdrCEF.exe	90
PID 2128 wrote to memory of 1924	2128	RdrCEF.exe	90
PID 2128 wrote to memory of 1924	2128	RdrCEF.exe	90
PID 2128 wrote to memory of 1924	2128	RdrCEF.exe	90
PID 2128 wrote to memory of 1924	2128	RdrCEF.exe	90
PID 2128 wrote to memory of 1924	2128	RdrCEF.exe	90
PID 2128 wrote to memory of 1924	2128	RdrCEF.exe	90
PID 2128 wrote to memory of 1924	2128	RdrCEF.exe	90
PID 2128 wrote to memory of 1924	2128	RdrCEF.exe	90
PID 2128 wrote to memory of 1924	2128	RdrCEF.exe	90
PID 2128 wrote to memory of 1924	2128	RdrCEF.exe	90
PID 2128 wrote to memory of 1924	2128	RdrCEF.exe	90
PID 2128 wrote to memory of 1924	2128	RdrCEF.exe	90
PID 2128 wrote to memory of 1924	2128	RdrCEF.exe	90
PID 2128 wrote to memory of 1924	2128	RdrCEF.exe	90
PID 2128 wrote to memory of 1924	2128	RdrCEF.exe	90
PID 2128 wrote to memory of 1924	2128	RdrCEF.exe	90
PID 2128 wrote to memory of 1924	2128	RdrCEF.exe	90
PID 2128 wrote to memory of 1924	2128	RdrCEF.exe	90
PID 2128 wrote to memory of 1924	2128	RdrCEF.exe	90
PID 2128 wrote to memory of 1924	2128	RdrCEF.exe	90
PID 2128 wrote to memory of 1924	2128	RdrCEF.exe	90
PID 2128 wrote to memory of 1924	2128	RdrCEF.exe	90
PID 2128 wrote to memory of 1924	2128	RdrCEF.exe	90
PID 2128 wrote to memory of 1924	2128	RdrCEF.exe	90
PID 2128 wrote to memory of 1924	2128	RdrCEF.exe	90
PID 2128 wrote to memory of 1924	2128	RdrCEF.exe	90
PID 2128 wrote to memory of 1924	2128	RdrCEF.exe	90
PID 2128 wrote to memory of 2344	2128	RdrCEF.exe	91
PID 2128 wrote to memory of 2344	2128	RdrCEF.exe	91
PID 2128 wrote to memory of 2344	2128	RdrCEF.exe	91
PID 2128 wrote to memory of 2344	2128	RdrCEF.exe	91
PID 2128 wrote to memory of 2344	2128	RdrCEF.exe	91
PID 2128 wrote to memory of 2344	2128	RdrCEF.exe	91
PID 2128 wrote to memory of 2344	2128	RdrCEF.exe	91
PID 2128 wrote to memory of 2344	2128	RdrCEF.exe	91
PID 2128 wrote to memory of 2344	2128	RdrCEF.exe	91
PID 2128 wrote to memory of 2344	2128	RdrCEF.exe	91
PID 2128 wrote to memory of 2344	2128	RdrCEF.exe	91
PID 2128 wrote to memory of 2344	2128	RdrCEF.exe	91
PID 2128 wrote to memory of 2344	2128	RdrCEF.exe	91
PID 2128 wrote to memory of 2344	2128	RdrCEF.exe	91
PID 2128 wrote to memory of 2344	2128	RdrCEF.exe	91
PID 2128 wrote to memory of 2344	2128	RdrCEF.exe	91
PID 2128 wrote to memory of 2344	2128	RdrCEF.exe	91
PID 2128 wrote to memory of 2344	2128	RdrCEF.exe	91
PID 2128 wrote to memory of 2344	2128	RdrCEF.exe	91
PID 2128 wrote to memory of 2344	2128	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\756989d5bc9b7841a75c461d6c7b0559.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:5048
- 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:2128
- - 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=CA9F1725E6C8EE4FFCC234EF8E1C4D25 --mojo-platform-channel-handle=1724 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1924
- - 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=549396B4CF3743B695B5271E961A6187 --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=549396B4CF3743B695B5271E961A6187 --renderer-client-id=2 --mojo-platform-channel-handle=1752 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:2344
- - 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=9A347ECA8FBDA7D3EC4A3E081981F9A6 --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=9A347ECA8FBDA7D3EC4A3E081981F9A6 --renderer-client-id=4 --mojo-platform-channel-handle=2276 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:2216
- - 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=EA33EF3DDEEF6620CABAFCA4F6BE1055 --mojo-platform-channel-handle=2424 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2896
- - 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=87EB7DA63CF9D39FB34F5E4730AD92AF --mojo-platform-channel-handle=2548 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4600
- - 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=EBEF405B43E2357B6500E742C0D1213D --mojo-platform-channel-handle=2520 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:788

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
61db7581739cfd1d495caf1d1b6eea68

SHA1
aa855025e70eca039337eaaa01eeeb7791f10a1e

SHA256
529c6da8b8205f95d106dcd6c1bdea0b7115d2116631bc5de8ddbd5dbbeb4d90

SHA512
7937d88bb23b999a94cbeddbe1e354d9637b4c3c15b3782c079de7a3fb75c12fbafebddc59b224b3e04c4c195723594f9a8efbdaec3a43b78e3eccb3bbbc6eb1

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