e710d284ebdd6ef2630933a5e3e81c8e1a4d3412fb0d3221be3fc9285618059f

Analysis

max time kernel
299s
max time network
270s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
04/01/2024, 00:06

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General

Target

ReynoldsSubponea.pdf
Size

131KB
MD5

f4fabf322f01bdd46602a7f8becb6957
SHA1

0bbf05415a6b87809497ee490b52181c143038be
SHA256

e710d284ebdd6ef2630933a5e3e81c8e1a4d3412fb0d3221be3fc9285618059f
SHA512

90e02c52d4bb3f7a04f0bc9f668f9c31a7ca520ba034eb848b78639d663264c230bed93277697cb0590945bf22406645ebd651b2410a2667a80a535b908714a6
SSDEEP

3072:pYXvCtosndQEo2WYZjO0muKjyZd4VQDWV8yfclex0PcLX:8sn+EeYZj616utfpWPcL

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-1-5-21-3803511929-1339359695-2191195476-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
4352	AcroRd32.exe
4352	AcroRd32.exe
4352	AcroRd32.exe
4352	AcroRd32.exe
4352	AcroRd32.exe
4352	AcroRd32.exe
4352	AcroRd32.exe
4352	AcroRd32.exe
4352	AcroRd32.exe
4352	AcroRd32.exe
4352	AcroRd32.exe
4352	AcroRd32.exe
4352	AcroRd32.exe
4352	AcroRd32.exe
4352	AcroRd32.exe
4352	AcroRd32.exe
4352	AcroRd32.exe
4352	AcroRd32.exe
4352	AcroRd32.exe
4352	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4352	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
4352	AcroRd32.exe
4352	AcroRd32.exe
4352	AcroRd32.exe
4352	AcroRd32.exe
4352	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4352 wrote to memory of 5032	4352	AcroRd32.exe	90
PID 4352 wrote to memory of 5032	4352	AcroRd32.exe	90
PID 4352 wrote to memory of 5032	4352	AcroRd32.exe	90
PID 5032 wrote to memory of 3848	5032	RdrCEF.exe	92
PID 5032 wrote to memory of 3848	5032	RdrCEF.exe	92
PID 5032 wrote to memory of 3848	5032	RdrCEF.exe	92
PID 5032 wrote to memory of 3848	5032	RdrCEF.exe	92
PID 5032 wrote to memory of 3848	5032	RdrCEF.exe	92
PID 5032 wrote to memory of 3848	5032	RdrCEF.exe	92
PID 5032 wrote to memory of 3848	5032	RdrCEF.exe	92
PID 5032 wrote to memory of 3848	5032	RdrCEF.exe	92
PID 5032 wrote to memory of 3848	5032	RdrCEF.exe	92
PID 5032 wrote to memory of 3848	5032	RdrCEF.exe	92
PID 5032 wrote to memory of 3848	5032	RdrCEF.exe	92
PID 5032 wrote to memory of 3848	5032	RdrCEF.exe	92
PID 5032 wrote to memory of 3848	5032	RdrCEF.exe	92
PID 5032 wrote to memory of 3848	5032	RdrCEF.exe	92
PID 5032 wrote to memory of 3848	5032	RdrCEF.exe	92
PID 5032 wrote to memory of 3848	5032	RdrCEF.exe	92
PID 5032 wrote to memory of 3848	5032	RdrCEF.exe	92
PID 5032 wrote to memory of 3848	5032	RdrCEF.exe	92
PID 5032 wrote to memory of 3848	5032	RdrCEF.exe	92
PID 5032 wrote to memory of 3848	5032	RdrCEF.exe	92
PID 5032 wrote to memory of 3848	5032	RdrCEF.exe	92
PID 5032 wrote to memory of 3848	5032	RdrCEF.exe	92
PID 5032 wrote to memory of 3848	5032	RdrCEF.exe	92
PID 5032 wrote to memory of 3848	5032	RdrCEF.exe	92
PID 5032 wrote to memory of 3848	5032	RdrCEF.exe	92
PID 5032 wrote to memory of 3848	5032	RdrCEF.exe	92
PID 5032 wrote to memory of 3848	5032	RdrCEF.exe	92
PID 5032 wrote to memory of 3848	5032	RdrCEF.exe	92
PID 5032 wrote to memory of 3848	5032	RdrCEF.exe	92
PID 5032 wrote to memory of 3848	5032	RdrCEF.exe	92
PID 5032 wrote to memory of 3848	5032	RdrCEF.exe	92
PID 5032 wrote to memory of 3848	5032	RdrCEF.exe	92
PID 5032 wrote to memory of 3848	5032	RdrCEF.exe	92
PID 5032 wrote to memory of 3848	5032	RdrCEF.exe	92
PID 5032 wrote to memory of 3848	5032	RdrCEF.exe	92
PID 5032 wrote to memory of 3848	5032	RdrCEF.exe	92
PID 5032 wrote to memory of 3848	5032	RdrCEF.exe	92
PID 5032 wrote to memory of 3848	5032	RdrCEF.exe	92
PID 5032 wrote to memory of 3848	5032	RdrCEF.exe	92
PID 5032 wrote to memory of 3848	5032	RdrCEF.exe	92
PID 5032 wrote to memory of 3848	5032	RdrCEF.exe	92
PID 5032 wrote to memory of 4196	5032	RdrCEF.exe	91
PID 5032 wrote to memory of 4196	5032	RdrCEF.exe	91
PID 5032 wrote to memory of 4196	5032	RdrCEF.exe	91
PID 5032 wrote to memory of 4196	5032	RdrCEF.exe	91
PID 5032 wrote to memory of 4196	5032	RdrCEF.exe	91
PID 5032 wrote to memory of 4196	5032	RdrCEF.exe	91
PID 5032 wrote to memory of 4196	5032	RdrCEF.exe	91
PID 5032 wrote to memory of 4196	5032	RdrCEF.exe	91
PID 5032 wrote to memory of 4196	5032	RdrCEF.exe	91
PID 5032 wrote to memory of 4196	5032	RdrCEF.exe	91
PID 5032 wrote to memory of 4196	5032	RdrCEF.exe	91
PID 5032 wrote to memory of 4196	5032	RdrCEF.exe	91
PID 5032 wrote to memory of 4196	5032	RdrCEF.exe	91
PID 5032 wrote to memory of 4196	5032	RdrCEF.exe	91
PID 5032 wrote to memory of 4196	5032	RdrCEF.exe	91
PID 5032 wrote to memory of 4196	5032	RdrCEF.exe	91
PID 5032 wrote to memory of 4196	5032	RdrCEF.exe	91
PID 5032 wrote to memory of 4196	5032	RdrCEF.exe	91
PID 5032 wrote to memory of 4196	5032	RdrCEF.exe	91
PID 5032 wrote to memory of 4196	5032	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\ReynoldsSubponea.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:4352
- 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:5032
- - 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=85C33F3371F42C4F35F2A3C982BFA251 --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=85C33F3371F42C4F35F2A3C982BFA251 --renderer-client-id=2 --mojo-platform-channel-handle=1752 --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=4E96C9280D82934D769FF634A9A5C29F --mojo-platform-channel-handle=1748 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3848
- - 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=C7AFCBFDA12B1820E25C96BCB2F0C124 --mojo-platform-channel-handle=2320 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2348
- - 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=7AE89B52CAFACE1A47F5BE2A4052C577 --mojo-platform-channel-handle=1804 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4424
- - 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=199ED704C323B9DD93AC26B3696186E8 --mojo-platform-channel-handle=2600 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1892
- - 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=43BA9A4B9EF2530FFD04999BEA510379 --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=43BA9A4B9EF2530FFD04999BEA510379 --renderer-client-id=6 --mojo-platform-channel-handle=2492 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:3656

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:1088

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
17e71b2ab5c677d4338f8b7d1857f86b

SHA1
8c2a6459a5e06509bb6bd35b2758b8ee521326b0

SHA256
9620b6b49be22a345880800330af01bd86fca6de3e26ae8c69ab8657b353b92d

SHA512
1aa81ea3a1e65ba3ad7d42e3d8f4f04aa76bdb170da9e685d6c3fec66c5e584412753533ecff927a1e4c0741ef9a10c69dbe45174d7d5db1b6eb12cc87ccaf3c

Download Submit
C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\ReaderMessages

Filesize
56KB

MD5
c26ed30e7d5ab440480838636efc41db

SHA1
c66e0d00b56abebfb60d2fcc5cf85ad31a0d6591

SHA256
6a3c5c4a8e57f77ecc22078fbf603ecc31fb82d429bd87b7b4b9261447092aef

SHA512
96cdb78bca3e01d4513c31661987e5646e6a8ff24708918aa0d66dfa3ca5d98af4862c9f38c4f41f933c345d2d3adfb1d34d1430b33f45f916f41a9872a030df

Download Submit
C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\ReaderMessages

Filesize
56KB

MD5
752a1f26b18748311b691c7d8fc20633

SHA1
c1f8e83eebc1cc1e9b88c773338eb09ff82ab862

SHA256
111dac2948e4cecb10b0d2e10d8afaa663d78d643826b592d6414a1fd77cc131

SHA512
a2f5f262faf2c3e9756da94b2c47787ce3a9391b5bd53581578aa9a764449e114836704d6dec4aadc097fed4c818831baa11affa1eb25be2bfad9349bb090fe5

Download Submit