08583d787940101c8e8dd52f09aa9b0e299787e4c676d2ecf34b2fccf2b597d3

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
07/03/2024, 11:46

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General

Target

b8a92b545fa72fd3414bcd512e16650e.pdf
Size

88KB
MD5

b8a92b545fa72fd3414bcd512e16650e
SHA1

8c7e5d4208439950c334075a03dca5d9c3e29f64
SHA256

08583d787940101c8e8dd52f09aa9b0e299787e4c676d2ecf34b2fccf2b597d3
SHA512

bf8c8df0db10ab75bbfe641993ec63d6aa66eab78dcab6c05f27a82994c3bab4a34a37d78923b14bb5ca834daab15d456991407d6c47eeeffc485cccce706315
SSDEEP

1536:GeQDyELqFQHQ3POEPv5FHExycCNFtT3W3vVOI3DWOpOZtW6wsl:FQDy8obfOwnE3qSII3cZzn

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-1-5-21-275798769-4264537674-1142822080-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
4488	AcroRd32.exe
4488	AcroRd32.exe
4488	AcroRd32.exe
4488	AcroRd32.exe
4488	AcroRd32.exe
4488	AcroRd32.exe
4488	AcroRd32.exe
4488	AcroRd32.exe
4488	AcroRd32.exe
4488	AcroRd32.exe
4488	AcroRd32.exe
4488	AcroRd32.exe
4488	AcroRd32.exe
4488	AcroRd32.exe
4488	AcroRd32.exe
4488	AcroRd32.exe
4488	AcroRd32.exe
4488	AcroRd32.exe
4488	AcroRd32.exe
4488	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4488	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
4488	AcroRd32.exe
4488	AcroRd32.exe
4488	AcroRd32.exe
4488	AcroRd32.exe
4488	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4488 wrote to memory of 4840	4488	AcroRd32.exe	90
PID 4488 wrote to memory of 4840	4488	AcroRd32.exe	90
PID 4488 wrote to memory of 4840	4488	AcroRd32.exe	90
PID 4840 wrote to memory of 5108	4840	RdrCEF.exe	91
PID 4840 wrote to memory of 5108	4840	RdrCEF.exe	91
PID 4840 wrote to memory of 5108	4840	RdrCEF.exe	91
PID 4840 wrote to memory of 5108	4840	RdrCEF.exe	91
PID 4840 wrote to memory of 5108	4840	RdrCEF.exe	91
PID 4840 wrote to memory of 5108	4840	RdrCEF.exe	91
PID 4840 wrote to memory of 5108	4840	RdrCEF.exe	91
PID 4840 wrote to memory of 5108	4840	RdrCEF.exe	91
PID 4840 wrote to memory of 5108	4840	RdrCEF.exe	91
PID 4840 wrote to memory of 5108	4840	RdrCEF.exe	91
PID 4840 wrote to memory of 5108	4840	RdrCEF.exe	91
PID 4840 wrote to memory of 5108	4840	RdrCEF.exe	91
PID 4840 wrote to memory of 5108	4840	RdrCEF.exe	91
PID 4840 wrote to memory of 5108	4840	RdrCEF.exe	91
PID 4840 wrote to memory of 5108	4840	RdrCEF.exe	91
PID 4840 wrote to memory of 5108	4840	RdrCEF.exe	91
PID 4840 wrote to memory of 5108	4840	RdrCEF.exe	91
PID 4840 wrote to memory of 5108	4840	RdrCEF.exe	91
PID 4840 wrote to memory of 5108	4840	RdrCEF.exe	91
PID 4840 wrote to memory of 5108	4840	RdrCEF.exe	91
PID 4840 wrote to memory of 5108	4840	RdrCEF.exe	91
PID 4840 wrote to memory of 5108	4840	RdrCEF.exe	91
PID 4840 wrote to memory of 5108	4840	RdrCEF.exe	91
PID 4840 wrote to memory of 5108	4840	RdrCEF.exe	91
PID 4840 wrote to memory of 5108	4840	RdrCEF.exe	91
PID 4840 wrote to memory of 5108	4840	RdrCEF.exe	91
PID 4840 wrote to memory of 5108	4840	RdrCEF.exe	91
PID 4840 wrote to memory of 5108	4840	RdrCEF.exe	91
PID 4840 wrote to memory of 5108	4840	RdrCEF.exe	91
PID 4840 wrote to memory of 5108	4840	RdrCEF.exe	91
PID 4840 wrote to memory of 5108	4840	RdrCEF.exe	91
PID 4840 wrote to memory of 5108	4840	RdrCEF.exe	91
PID 4840 wrote to memory of 5108	4840	RdrCEF.exe	91
PID 4840 wrote to memory of 5108	4840	RdrCEF.exe	91
PID 4840 wrote to memory of 5108	4840	RdrCEF.exe	91
PID 4840 wrote to memory of 5108	4840	RdrCEF.exe	91
PID 4840 wrote to memory of 5108	4840	RdrCEF.exe	91
PID 4840 wrote to memory of 5108	4840	RdrCEF.exe	91
PID 4840 wrote to memory of 5108	4840	RdrCEF.exe	91
PID 4840 wrote to memory of 5108	4840	RdrCEF.exe	91
PID 4840 wrote to memory of 5108	4840	RdrCEF.exe	91
PID 4840 wrote to memory of 4148	4840	RdrCEF.exe	92
PID 4840 wrote to memory of 4148	4840	RdrCEF.exe	92
PID 4840 wrote to memory of 4148	4840	RdrCEF.exe	92
PID 4840 wrote to memory of 4148	4840	RdrCEF.exe	92
PID 4840 wrote to memory of 4148	4840	RdrCEF.exe	92
PID 4840 wrote to memory of 4148	4840	RdrCEF.exe	92
PID 4840 wrote to memory of 4148	4840	RdrCEF.exe	92
PID 4840 wrote to memory of 4148	4840	RdrCEF.exe	92
PID 4840 wrote to memory of 4148	4840	RdrCEF.exe	92
PID 4840 wrote to memory of 4148	4840	RdrCEF.exe	92
PID 4840 wrote to memory of 4148	4840	RdrCEF.exe	92
PID 4840 wrote to memory of 4148	4840	RdrCEF.exe	92
PID 4840 wrote to memory of 4148	4840	RdrCEF.exe	92
PID 4840 wrote to memory of 4148	4840	RdrCEF.exe	92
PID 4840 wrote to memory of 4148	4840	RdrCEF.exe	92
PID 4840 wrote to memory of 4148	4840	RdrCEF.exe	92
PID 4840 wrote to memory of 4148	4840	RdrCEF.exe	92
PID 4840 wrote to memory of 4148	4840	RdrCEF.exe	92
PID 4840 wrote to memory of 4148	4840	RdrCEF.exe	92
PID 4840 wrote to memory of 4148	4840	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\b8a92b545fa72fd3414bcd512e16650e.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:4488
- 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:4840
- - 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=5F2948EF6CE1537A4D909F35DBFBFD80 --mojo-platform-channel-handle=1748 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:5108
- - 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=D3C1F117CD09751DEC2148726B7229BB --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=D3C1F117CD09751DEC2148726B7229BB --renderer-client-id=2 --mojo-platform-channel-handle=1756 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4148
- - 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=4B7D1100C388B1BAFE76AE436E50F11F --mojo-platform-channel-handle=2296 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3664
- - 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=6A107E8093DFAAD0A9EDABC1359809EB --mojo-platform-channel-handle=2308 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4608
- - 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=53675C1D06A63153DD82E4D314EB1ACF --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=53675C1D06A63153DD82E4D314EB1ACF --renderer-client-id=6 --mojo-platform-channel-handle=2304 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:1656
- - 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=71C41169ABB8A7B89AFD77001BB6C690 --mojo-platform-channel-handle=2656 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2436

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
3f9219df891333e1815192410dfc22ba

SHA1
d105c76d8437575db3534280ed31845b08e1414c

SHA256
936c2c71cf4c7cd6af418110354cc6a0a33ea24976db0125575cd5aa0bad39a8

SHA512
6035f300596ebb8f3d9048e64ad01070a41dfb0167708c054c6d99add795faddfe13041f08ff0adf2d8fca215dc9d80e0167e4319e3d1c3f0f022b6ae17fa274

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