e728987d79fee0a839957c0c39a4530acd2f1aa37c178e1387204d540b81224d

Analysis

max time kernel
141s
max time network
137s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
03-02-2024 09:12

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General

Target

8bf431e10aafadba0720f443d58e7395.pdf
Size

20KB
MD5

8bf431e10aafadba0720f443d58e7395
SHA1

abbe6ce2435cc97bf770d52f325fc8bac8191042
SHA256

e728987d79fee0a839957c0c39a4530acd2f1aa37c178e1387204d540b81224d
SHA512

b87ff135283f7ab088903be853cd4db2631204590d65966eadb12f02a279841f000f3dd00b53b714e0aeb9bc07f56f7db84780e7764f10ab8e615342acfb1f92
SSDEEP

192:wYq+njJYPR3If4n263HBa8JkTXkaHEtj3WdWG7v2aM6p2IGvjGYaELYr6FpTKv6P:FnjAtnba8eTXRWTvQeyxoO6W6myU+zH

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-1-5-21-1232405761-1209240240-3206092754-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
4508	AcroRd32.exe
4508	AcroRd32.exe
4508	AcroRd32.exe
4508	AcroRd32.exe
4508	AcroRd32.exe
4508	AcroRd32.exe
4508	AcroRd32.exe
4508	AcroRd32.exe
4508	AcroRd32.exe
4508	AcroRd32.exe
4508	AcroRd32.exe
4508	AcroRd32.exe
4508	AcroRd32.exe
4508	AcroRd32.exe
4508	AcroRd32.exe
4508	AcroRd32.exe
4508	AcroRd32.exe
4508	AcroRd32.exe
4508	AcroRd32.exe
4508	AcroRd32.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
4508	AcroRd32.exe
4508	AcroRd32.exe
4508	AcroRd32.exe
4508	AcroRd32.exe
4508	AcroRd32.exe
4508	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4508 wrote to memory of 2624	4508	AcroRd32.exe	86
PID 4508 wrote to memory of 2624	4508	AcroRd32.exe	86
PID 4508 wrote to memory of 2624	4508	AcroRd32.exe	86
PID 2624 wrote to memory of 4560	2624	RdrCEF.exe	89
PID 2624 wrote to memory of 4560	2624	RdrCEF.exe	89
PID 2624 wrote to memory of 4560	2624	RdrCEF.exe	89
PID 2624 wrote to memory of 4560	2624	RdrCEF.exe	89
PID 2624 wrote to memory of 4560	2624	RdrCEF.exe	89
PID 2624 wrote to memory of 4560	2624	RdrCEF.exe	89
PID 2624 wrote to memory of 4560	2624	RdrCEF.exe	89
PID 2624 wrote to memory of 4560	2624	RdrCEF.exe	89
PID 2624 wrote to memory of 4560	2624	RdrCEF.exe	89
PID 2624 wrote to memory of 4560	2624	RdrCEF.exe	89
PID 2624 wrote to memory of 4560	2624	RdrCEF.exe	89
PID 2624 wrote to memory of 4560	2624	RdrCEF.exe	89
PID 2624 wrote to memory of 4560	2624	RdrCEF.exe	89
PID 2624 wrote to memory of 4560	2624	RdrCEF.exe	89
PID 2624 wrote to memory of 4560	2624	RdrCEF.exe	89
PID 2624 wrote to memory of 4560	2624	RdrCEF.exe	89
PID 2624 wrote to memory of 4560	2624	RdrCEF.exe	89
PID 2624 wrote to memory of 4560	2624	RdrCEF.exe	89
PID 2624 wrote to memory of 4560	2624	RdrCEF.exe	89
PID 2624 wrote to memory of 4560	2624	RdrCEF.exe	89
PID 2624 wrote to memory of 4560	2624	RdrCEF.exe	89
PID 2624 wrote to memory of 4560	2624	RdrCEF.exe	89
PID 2624 wrote to memory of 4560	2624	RdrCEF.exe	89
PID 2624 wrote to memory of 4560	2624	RdrCEF.exe	89
PID 2624 wrote to memory of 4560	2624	RdrCEF.exe	89
PID 2624 wrote to memory of 4560	2624	RdrCEF.exe	89
PID 2624 wrote to memory of 4560	2624	RdrCEF.exe	89
PID 2624 wrote to memory of 4560	2624	RdrCEF.exe	89
PID 2624 wrote to memory of 4560	2624	RdrCEF.exe	89
PID 2624 wrote to memory of 4560	2624	RdrCEF.exe	89
PID 2624 wrote to memory of 4560	2624	RdrCEF.exe	89
PID 2624 wrote to memory of 4560	2624	RdrCEF.exe	89
PID 2624 wrote to memory of 4560	2624	RdrCEF.exe	89
PID 2624 wrote to memory of 4560	2624	RdrCEF.exe	89
PID 2624 wrote to memory of 4560	2624	RdrCEF.exe	89
PID 2624 wrote to memory of 4560	2624	RdrCEF.exe	89
PID 2624 wrote to memory of 4560	2624	RdrCEF.exe	89
PID 2624 wrote to memory of 4560	2624	RdrCEF.exe	89
PID 2624 wrote to memory of 4560	2624	RdrCEF.exe	89
PID 2624 wrote to memory of 4560	2624	RdrCEF.exe	89
PID 2624 wrote to memory of 4560	2624	RdrCEF.exe	89
PID 2624 wrote to memory of 60	2624	RdrCEF.exe	90
PID 2624 wrote to memory of 60	2624	RdrCEF.exe	90
PID 2624 wrote to memory of 60	2624	RdrCEF.exe	90
PID 2624 wrote to memory of 60	2624	RdrCEF.exe	90
PID 2624 wrote to memory of 60	2624	RdrCEF.exe	90
PID 2624 wrote to memory of 60	2624	RdrCEF.exe	90
PID 2624 wrote to memory of 60	2624	RdrCEF.exe	90
PID 2624 wrote to memory of 60	2624	RdrCEF.exe	90
PID 2624 wrote to memory of 60	2624	RdrCEF.exe	90
PID 2624 wrote to memory of 60	2624	RdrCEF.exe	90
PID 2624 wrote to memory of 60	2624	RdrCEF.exe	90
PID 2624 wrote to memory of 60	2624	RdrCEF.exe	90
PID 2624 wrote to memory of 60	2624	RdrCEF.exe	90
PID 2624 wrote to memory of 60	2624	RdrCEF.exe	90
PID 2624 wrote to memory of 60	2624	RdrCEF.exe	90
PID 2624 wrote to memory of 60	2624	RdrCEF.exe	90
PID 2624 wrote to memory of 60	2624	RdrCEF.exe	90
PID 2624 wrote to memory of 60	2624	RdrCEF.exe	90
PID 2624 wrote to memory of 60	2624	RdrCEF.exe	90
PID 2624 wrote to memory of 60	2624	RdrCEF.exe	90

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\8bf431e10aafadba0720f443d58e7395.pdf"
1⤵
- Checks processor information in registry
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4508
- 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:2624
- - 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=2D61EF2CDB04AED8DB46382EB8108289 --mojo-platform-channel-handle=1732 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4560
- - 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=2EF4F909EF7820B34EFBD0AEFC52181F --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=2EF4F909EF7820B34EFBD0AEFC52181F --renderer-client-id=2 --mojo-platform-channel-handle=1740 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:60
- - 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=1D005C625818A57455E53A1994363918 --mojo-platform-channel-handle=2144 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4516
- - 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=CAB972A49E0DEB6A83F49DC1D34B78E8 --mojo-platform-channel-handle=2324 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4892
- - 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=F1B2819CB5EFFDB965FC0A0BC1F3DDF1 --mojo-platform-channel-handle=2148 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2020

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:3408

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
21100df2c692b9798d40d395f91b3906

SHA1
673cdbdd4723c656e9cb17a208e10fb73d2b280f

SHA256
cf08e2cf839a3a70e8ffec08cacfc62ae233a0badf088707961308e95c8fe11a

SHA512
6a73afc7bcb8d0d2c38174c745de57ddc2ff56dd3277cefedec06004e88c76333a9df3397a793cd0b539da674b185eff12bd033ee5ed5964c12836c68dc18180

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