25386d9143cf083ec47e518ad751221bb6e77f7657586b0e5739b71cf3d7f433

Analysis

max time kernel
141s
max time network
132s
platform
windows10-2004_x64
resource
win10v2004-20240221-en
resource tags

arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
submitted
24-02-2024 11:11

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General

Target

a1b7a482a05e70bd2e66a6bb01b3ac0c.pdf
Size

79KB
MD5

a1b7a482a05e70bd2e66a6bb01b3ac0c
SHA1

b146b98d5c73f26a6c0bca59c445a4437be93191
SHA256

25386d9143cf083ec47e518ad751221bb6e77f7657586b0e5739b71cf3d7f433
SHA512

baa6b927b57694e36599c646248688c0e9fa325e303ca844b1aa47c940ad7905705548431dd869cb649a5cd377f62ecd28217b6c826bc00e9061b4a4fc7f4c55
SSDEEP

1536:FoNtWpWL4impObHTvBImlW+0oMpXD6iMLLv6IStSyX9A6M:+rv4BpyBIP+0tpdMnvPKX9y

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-1-5-21-910440534-423636034-2318342392-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
4736	AcroRd32.exe
4736	AcroRd32.exe
4736	AcroRd32.exe
4736	AcroRd32.exe
4736	AcroRd32.exe
4736	AcroRd32.exe
4736	AcroRd32.exe
4736	AcroRd32.exe
4736	AcroRd32.exe
4736	AcroRd32.exe
4736	AcroRd32.exe
4736	AcroRd32.exe
4736	AcroRd32.exe
4736	AcroRd32.exe
4736	AcroRd32.exe
4736	AcroRd32.exe
4736	AcroRd32.exe
4736	AcroRd32.exe
4736	AcroRd32.exe
4736	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4736	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
4736	AcroRd32.exe
4736	AcroRd32.exe
4736	AcroRd32.exe
4736	AcroRd32.exe
4736	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4736 wrote to memory of 468	4736	AcroRd32.exe	87
PID 4736 wrote to memory of 468	4736	AcroRd32.exe	87
PID 4736 wrote to memory of 468	4736	AcroRd32.exe	87
PID 468 wrote to memory of 4192	468	RdrCEF.exe	88
PID 468 wrote to memory of 4192	468	RdrCEF.exe	88
PID 468 wrote to memory of 4192	468	RdrCEF.exe	88
PID 468 wrote to memory of 4192	468	RdrCEF.exe	88
PID 468 wrote to memory of 4192	468	RdrCEF.exe	88
PID 468 wrote to memory of 4192	468	RdrCEF.exe	88
PID 468 wrote to memory of 4192	468	RdrCEF.exe	88
PID 468 wrote to memory of 4192	468	RdrCEF.exe	88
PID 468 wrote to memory of 4192	468	RdrCEF.exe	88
PID 468 wrote to memory of 4192	468	RdrCEF.exe	88
PID 468 wrote to memory of 4192	468	RdrCEF.exe	88
PID 468 wrote to memory of 4192	468	RdrCEF.exe	88
PID 468 wrote to memory of 4192	468	RdrCEF.exe	88
PID 468 wrote to memory of 4192	468	RdrCEF.exe	88
PID 468 wrote to memory of 4192	468	RdrCEF.exe	88
PID 468 wrote to memory of 4192	468	RdrCEF.exe	88
PID 468 wrote to memory of 4192	468	RdrCEF.exe	88
PID 468 wrote to memory of 4192	468	RdrCEF.exe	88
PID 468 wrote to memory of 4192	468	RdrCEF.exe	88
PID 468 wrote to memory of 4192	468	RdrCEF.exe	88
PID 468 wrote to memory of 4192	468	RdrCEF.exe	88
PID 468 wrote to memory of 4192	468	RdrCEF.exe	88
PID 468 wrote to memory of 4192	468	RdrCEF.exe	88
PID 468 wrote to memory of 4192	468	RdrCEF.exe	88
PID 468 wrote to memory of 4192	468	RdrCEF.exe	88
PID 468 wrote to memory of 4192	468	RdrCEF.exe	88
PID 468 wrote to memory of 4192	468	RdrCEF.exe	88
PID 468 wrote to memory of 4192	468	RdrCEF.exe	88
PID 468 wrote to memory of 4192	468	RdrCEF.exe	88
PID 468 wrote to memory of 4192	468	RdrCEF.exe	88
PID 468 wrote to memory of 4192	468	RdrCEF.exe	88
PID 468 wrote to memory of 4192	468	RdrCEF.exe	88
PID 468 wrote to memory of 4192	468	RdrCEF.exe	88
PID 468 wrote to memory of 4192	468	RdrCEF.exe	88
PID 468 wrote to memory of 4192	468	RdrCEF.exe	88
PID 468 wrote to memory of 4192	468	RdrCEF.exe	88
PID 468 wrote to memory of 4192	468	RdrCEF.exe	88
PID 468 wrote to memory of 4192	468	RdrCEF.exe	88
PID 468 wrote to memory of 4192	468	RdrCEF.exe	88
PID 468 wrote to memory of 4192	468	RdrCEF.exe	88
PID 468 wrote to memory of 4192	468	RdrCEF.exe	88
PID 468 wrote to memory of 4196	468	RdrCEF.exe	89
PID 468 wrote to memory of 4196	468	RdrCEF.exe	89
PID 468 wrote to memory of 4196	468	RdrCEF.exe	89
PID 468 wrote to memory of 4196	468	RdrCEF.exe	89
PID 468 wrote to memory of 4196	468	RdrCEF.exe	89
PID 468 wrote to memory of 4196	468	RdrCEF.exe	89
PID 468 wrote to memory of 4196	468	RdrCEF.exe	89
PID 468 wrote to memory of 4196	468	RdrCEF.exe	89
PID 468 wrote to memory of 4196	468	RdrCEF.exe	89
PID 468 wrote to memory of 4196	468	RdrCEF.exe	89
PID 468 wrote to memory of 4196	468	RdrCEF.exe	89
PID 468 wrote to memory of 4196	468	RdrCEF.exe	89
PID 468 wrote to memory of 4196	468	RdrCEF.exe	89
PID 468 wrote to memory of 4196	468	RdrCEF.exe	89
PID 468 wrote to memory of 4196	468	RdrCEF.exe	89
PID 468 wrote to memory of 4196	468	RdrCEF.exe	89
PID 468 wrote to memory of 4196	468	RdrCEF.exe	89
PID 468 wrote to memory of 4196	468	RdrCEF.exe	89
PID 468 wrote to memory of 4196	468	RdrCEF.exe	89
PID 468 wrote to memory of 4196	468	RdrCEF.exe	89

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\a1b7a482a05e70bd2e66a6bb01b3ac0c.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:4736
- 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:468
- - 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=E7A68F0FB6F68CB40802B95F41EEFCDE --mojo-platform-channel-handle=1732 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4192
- - 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=B9BCC438BB435D7414CDACA6FBB2C911 --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=B9BCC438BB435D7414CDACA6FBB2C911 --renderer-client-id=2 --mojo-platform-channel-handle=1744 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4196
- - 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=BCB654791A6984B7FBEE6A94F9091429 --mojo-platform-channel-handle=2160 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4848
- - 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=559F92B1993820EC787C830281940B8A --mojo-platform-channel-handle=2416 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:640
- - 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=35218DD6A5DD9285BE3AEC0A6277A472 --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=35218DD6A5DD9285BE3AEC0A6277A472 --renderer-client-id=6 --mojo-platform-channel-handle=1928 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:5112
- - 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=E98CE95BDA403F95DF68A3FD74689C17 --mojo-platform-channel-handle=2532 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2392

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:1164

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
1b78d7d5c80ec026a8040588aa2d2872

SHA1
9e355a9f3914a77d23f4d959cd3c4159b6c7cc69

SHA256
7f2e05220fe6ae32cc2280a197cdd18c1d288f8c9a61406cbfed503dc32d0ea9

SHA512
31b9ec24d2a95536b3a888111704ca0eb3084ccdaaae6451a7eb24c0d3a980f20dc6620116a946c10c35195ac3b44dc7b4657c019fd74fdd581af37d2842756a

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
memory/4736-28-0x000000000B640000-0x000000000B661000-memory.dmp

Filesize
132KB

Download