a82eea51556513f81a3c8c9dc1a71ba11c46d1ac7715c8f5e31278e01c6db2e9

Analysis

max time kernel
149s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
05/03/2024, 21:43

Sharing

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General

Target

b5ba91bd5d0202112c824ab644bcda75.pdf
Size

78KB
MD5

b5ba91bd5d0202112c824ab644bcda75
SHA1

19d0b300e4d3d301149b7819fd48f805594ac6c0
SHA256

a82eea51556513f81a3c8c9dc1a71ba11c46d1ac7715c8f5e31278e01c6db2e9
SHA512

94e127e24918244faf36b69c30fcc7f1e8083f66b72f05fce957071f27f681cd19bd6dfa30e86159ccc46fa9f27a9a46481c84f9be529cd69de0eb094ba5899a
SSDEEP

1536:9lkZcu9ZtqMnxnLELpjNsoKz4oG1Sk4RVWJpQFHqmPKoKAizWOpOwrHb5:0Oi15Ef1kRHYFzQwr9

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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	AcroRd32.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	AcroRd32.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2727153400-192325109-1870347593-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
4776	AcroRd32.exe
4776	AcroRd32.exe
4776	AcroRd32.exe
4776	AcroRd32.exe
4776	AcroRd32.exe
4776	AcroRd32.exe
4776	AcroRd32.exe
4776	AcroRd32.exe
4776	AcroRd32.exe
4776	AcroRd32.exe
4776	AcroRd32.exe
4776	AcroRd32.exe
4776	AcroRd32.exe
4776	AcroRd32.exe
4776	AcroRd32.exe
4776	AcroRd32.exe
4776	AcroRd32.exe
4776	AcroRd32.exe
4776	AcroRd32.exe
4776	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4776	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
4776	AcroRd32.exe
4776	AcroRd32.exe
4776	AcroRd32.exe
4776	AcroRd32.exe
4776	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4776 wrote to memory of 2360	4776	AcroRd32.exe	90
PID 4776 wrote to memory of 2360	4776	AcroRd32.exe	90
PID 4776 wrote to memory of 2360	4776	AcroRd32.exe	90
PID 2360 wrote to memory of 4640	2360	RdrCEF.exe	91
PID 2360 wrote to memory of 4640	2360	RdrCEF.exe	91
PID 2360 wrote to memory of 4640	2360	RdrCEF.exe	91
PID 2360 wrote to memory of 4640	2360	RdrCEF.exe	91
PID 2360 wrote to memory of 4640	2360	RdrCEF.exe	91
PID 2360 wrote to memory of 4640	2360	RdrCEF.exe	91
PID 2360 wrote to memory of 4640	2360	RdrCEF.exe	91
PID 2360 wrote to memory of 4640	2360	RdrCEF.exe	91
PID 2360 wrote to memory of 4640	2360	RdrCEF.exe	91
PID 2360 wrote to memory of 4640	2360	RdrCEF.exe	91
PID 2360 wrote to memory of 4640	2360	RdrCEF.exe	91
PID 2360 wrote to memory of 4640	2360	RdrCEF.exe	91
PID 2360 wrote to memory of 4640	2360	RdrCEF.exe	91
PID 2360 wrote to memory of 4640	2360	RdrCEF.exe	91
PID 2360 wrote to memory of 4640	2360	RdrCEF.exe	91
PID 2360 wrote to memory of 4640	2360	RdrCEF.exe	91
PID 2360 wrote to memory of 4640	2360	RdrCEF.exe	91
PID 2360 wrote to memory of 4640	2360	RdrCEF.exe	91
PID 2360 wrote to memory of 4640	2360	RdrCEF.exe	91
PID 2360 wrote to memory of 4640	2360	RdrCEF.exe	91
PID 2360 wrote to memory of 4640	2360	RdrCEF.exe	91
PID 2360 wrote to memory of 4640	2360	RdrCEF.exe	91
PID 2360 wrote to memory of 4640	2360	RdrCEF.exe	91
PID 2360 wrote to memory of 4640	2360	RdrCEF.exe	91
PID 2360 wrote to memory of 4640	2360	RdrCEF.exe	91
PID 2360 wrote to memory of 4640	2360	RdrCEF.exe	91
PID 2360 wrote to memory of 4640	2360	RdrCEF.exe	91
PID 2360 wrote to memory of 4640	2360	RdrCEF.exe	91
PID 2360 wrote to memory of 4640	2360	RdrCEF.exe	91
PID 2360 wrote to memory of 4640	2360	RdrCEF.exe	91
PID 2360 wrote to memory of 4640	2360	RdrCEF.exe	91
PID 2360 wrote to memory of 4640	2360	RdrCEF.exe	91
PID 2360 wrote to memory of 4640	2360	RdrCEF.exe	91
PID 2360 wrote to memory of 4640	2360	RdrCEF.exe	91
PID 2360 wrote to memory of 4640	2360	RdrCEF.exe	91
PID 2360 wrote to memory of 4640	2360	RdrCEF.exe	91
PID 2360 wrote to memory of 4640	2360	RdrCEF.exe	91
PID 2360 wrote to memory of 4640	2360	RdrCEF.exe	91
PID 2360 wrote to memory of 4640	2360	RdrCEF.exe	91
PID 2360 wrote to memory of 4640	2360	RdrCEF.exe	91
PID 2360 wrote to memory of 4640	2360	RdrCEF.exe	91
PID 2360 wrote to memory of 4640	2360	RdrCEF.exe	91
PID 2360 wrote to memory of 4640	2360	RdrCEF.exe	91
PID 2360 wrote to memory of 1844	2360	RdrCEF.exe	92
PID 2360 wrote to memory of 1844	2360	RdrCEF.exe	92
PID 2360 wrote to memory of 1844	2360	RdrCEF.exe	92
PID 2360 wrote to memory of 1844	2360	RdrCEF.exe	92
PID 2360 wrote to memory of 1844	2360	RdrCEF.exe	92
PID 2360 wrote to memory of 1844	2360	RdrCEF.exe	92
PID 2360 wrote to memory of 1844	2360	RdrCEF.exe	92
PID 2360 wrote to memory of 1844	2360	RdrCEF.exe	92
PID 2360 wrote to memory of 1844	2360	RdrCEF.exe	92
PID 2360 wrote to memory of 1844	2360	RdrCEF.exe	92
PID 2360 wrote to memory of 1844	2360	RdrCEF.exe	92
PID 2360 wrote to memory of 1844	2360	RdrCEF.exe	92
PID 2360 wrote to memory of 1844	2360	RdrCEF.exe	92
PID 2360 wrote to memory of 1844	2360	RdrCEF.exe	92
PID 2360 wrote to memory of 1844	2360	RdrCEF.exe	92
PID 2360 wrote to memory of 1844	2360	RdrCEF.exe	92
PID 2360 wrote to memory of 1844	2360	RdrCEF.exe	92
PID 2360 wrote to memory of 1844	2360	RdrCEF.exe	92

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\b5ba91bd5d0202112c824ab644bcda75.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:4776
- 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:2360
- - 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=20A92B16696FC93B1DDD1CDF98E81A9F --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=20A92B16696FC93B1DDD1CDF98E81A9F --renderer-client-id=2 --mojo-platform-channel-handle=1740 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4640
- - 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=06D7C24E82978289F35629233EC6F90F --mojo-platform-channel-handle=1748 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1844
- - 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=D156D5384D915A60AA42A09ADB5B4117 --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=D156D5384D915A60AA42A09ADB5B4117 --renderer-client-id=4 --mojo-platform-channel-handle=2312 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:1356
- - 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=2EB5474945C77236D5BF06DE218B022D --mojo-platform-channel-handle=2444 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3336
- - 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=048FD4A586B69AEAEB8570D74EE7754C --mojo-platform-channel-handle=2592 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:368
- - 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=FB1568B89106005454E43AD21A7B0CE2 --mojo-platform-channel-handle=2492 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:824

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:1048

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
53f5a64895e81f1522267978bc50179f

SHA1
9313397ef4bb2c10437f031f054b17557c216735

SHA256
68287fa1ffbbcbb958dc752d8802d040379547c2f5a24b0fb4c5fe72a7678bec

SHA512
529d4808dc69a6890a78c97a22376d3d657a5e5c4e48cf0d83b93ac4e5fb5dad4c7c639503d3529db5cc17959ddf42421533f477f039628605047370ec2dfbed

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