5cb64023c6cdfbb0ff5358041ca4b27b153c315be2bfdb974488dad5716a2749

Analysis

max time kernel
147s
max time network
99s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
26-12-2023 03:32

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General

Target

509662e1937524cecba1167cfd0ca5a1.pdf
Size

44KB
MD5

509662e1937524cecba1167cfd0ca5a1
SHA1

879243c49b8a7d31e2758eea1594cae91aa2cfba
SHA256

5cb64023c6cdfbb0ff5358041ca4b27b153c315be2bfdb974488dad5716a2749
SHA512

3fe6f41a802f778c90e169934c3706e433ec2c82dde13e0e6db5590fff62c3b2990bd561792ca1d7c4be1372d4e67e92238287a51c9df9beb5bba0a9341d0186
SSDEEP

768:kgGzpDxpP5GEPrle8r2qIOjZkYJJhu5NVT7UJx0s13zJPj/zCnUAoKNWC7+91TKF:RGF18qImmYJJhENdIn0q3zV2nUAoKNWG

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-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
4032	AcroRd32.exe
4032	AcroRd32.exe
4032	AcroRd32.exe
4032	AcroRd32.exe
4032	AcroRd32.exe
4032	AcroRd32.exe
4032	AcroRd32.exe
4032	AcroRd32.exe
4032	AcroRd32.exe
4032	AcroRd32.exe
4032	AcroRd32.exe
4032	AcroRd32.exe
4032	AcroRd32.exe
4032	AcroRd32.exe
4032	AcroRd32.exe
4032	AcroRd32.exe
4032	AcroRd32.exe
4032	AcroRd32.exe
4032	AcroRd32.exe
4032	AcroRd32.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
4032	AcroRd32.exe
4032	AcroRd32.exe
4032	AcroRd32.exe
4032	AcroRd32.exe
4032	AcroRd32.exe
4032	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4032 wrote to memory of 2172	4032	AcroRd32.exe	92
PID 4032 wrote to memory of 2172	4032	AcroRd32.exe	92
PID 4032 wrote to memory of 2172	4032	AcroRd32.exe	92
PID 2172 wrote to memory of 2556	2172	RdrCEF.exe	93
PID 2172 wrote to memory of 2556	2172	RdrCEF.exe	93
PID 2172 wrote to memory of 2556	2172	RdrCEF.exe	93
PID 2172 wrote to memory of 2556	2172	RdrCEF.exe	93
PID 2172 wrote to memory of 2556	2172	RdrCEF.exe	93
PID 2172 wrote to memory of 2556	2172	RdrCEF.exe	93
PID 2172 wrote to memory of 2556	2172	RdrCEF.exe	93
PID 2172 wrote to memory of 2556	2172	RdrCEF.exe	93
PID 2172 wrote to memory of 2556	2172	RdrCEF.exe	93
PID 2172 wrote to memory of 2556	2172	RdrCEF.exe	93
PID 2172 wrote to memory of 2556	2172	RdrCEF.exe	93
PID 2172 wrote to memory of 2556	2172	RdrCEF.exe	93
PID 2172 wrote to memory of 2556	2172	RdrCEF.exe	93
PID 2172 wrote to memory of 2556	2172	RdrCEF.exe	93
PID 2172 wrote to memory of 2556	2172	RdrCEF.exe	93
PID 2172 wrote to memory of 2556	2172	RdrCEF.exe	93
PID 2172 wrote to memory of 2556	2172	RdrCEF.exe	93
PID 2172 wrote to memory of 2556	2172	RdrCEF.exe	93
PID 2172 wrote to memory of 2556	2172	RdrCEF.exe	93
PID 2172 wrote to memory of 2556	2172	RdrCEF.exe	93
PID 2172 wrote to memory of 2556	2172	RdrCEF.exe	93
PID 2172 wrote to memory of 2556	2172	RdrCEF.exe	93
PID 2172 wrote to memory of 2556	2172	RdrCEF.exe	93
PID 2172 wrote to memory of 2556	2172	RdrCEF.exe	93
PID 2172 wrote to memory of 2556	2172	RdrCEF.exe	93
PID 2172 wrote to memory of 2556	2172	RdrCEF.exe	93
PID 2172 wrote to memory of 2556	2172	RdrCEF.exe	93
PID 2172 wrote to memory of 2556	2172	RdrCEF.exe	93
PID 2172 wrote to memory of 2556	2172	RdrCEF.exe	93
PID 2172 wrote to memory of 2556	2172	RdrCEF.exe	93
PID 2172 wrote to memory of 2556	2172	RdrCEF.exe	93
PID 2172 wrote to memory of 2556	2172	RdrCEF.exe	93
PID 2172 wrote to memory of 2556	2172	RdrCEF.exe	93
PID 2172 wrote to memory of 2556	2172	RdrCEF.exe	93
PID 2172 wrote to memory of 2556	2172	RdrCEF.exe	93
PID 2172 wrote to memory of 2556	2172	RdrCEF.exe	93
PID 2172 wrote to memory of 2556	2172	RdrCEF.exe	93
PID 2172 wrote to memory of 2556	2172	RdrCEF.exe	93
PID 2172 wrote to memory of 2556	2172	RdrCEF.exe	93
PID 2172 wrote to memory of 2556	2172	RdrCEF.exe	93
PID 2172 wrote to memory of 2556	2172	RdrCEF.exe	93
PID 2172 wrote to memory of 2260	2172	RdrCEF.exe	94
PID 2172 wrote to memory of 2260	2172	RdrCEF.exe	94
PID 2172 wrote to memory of 2260	2172	RdrCEF.exe	94
PID 2172 wrote to memory of 2260	2172	RdrCEF.exe	94
PID 2172 wrote to memory of 2260	2172	RdrCEF.exe	94
PID 2172 wrote to memory of 2260	2172	RdrCEF.exe	94
PID 2172 wrote to memory of 2260	2172	RdrCEF.exe	94
PID 2172 wrote to memory of 2260	2172	RdrCEF.exe	94
PID 2172 wrote to memory of 2260	2172	RdrCEF.exe	94
PID 2172 wrote to memory of 2260	2172	RdrCEF.exe	94
PID 2172 wrote to memory of 2260	2172	RdrCEF.exe	94
PID 2172 wrote to memory of 2260	2172	RdrCEF.exe	94
PID 2172 wrote to memory of 2260	2172	RdrCEF.exe	94
PID 2172 wrote to memory of 2260	2172	RdrCEF.exe	94
PID 2172 wrote to memory of 2260	2172	RdrCEF.exe	94
PID 2172 wrote to memory of 2260	2172	RdrCEF.exe	94
PID 2172 wrote to memory of 2260	2172	RdrCEF.exe	94
PID 2172 wrote to memory of 2260	2172	RdrCEF.exe	94
PID 2172 wrote to memory of 2260	2172	RdrCEF.exe	94
PID 2172 wrote to memory of 2260	2172	RdrCEF.exe	94

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\509662e1937524cecba1167cfd0ca5a1.pdf"
1⤵
- Checks processor information in registry
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4032
- 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:2172
- - 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=A17811A38D4F1EB016AEA00CF3FC8C06 --mojo-platform-channel-handle=1732 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2556
- - 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=8E55BA524E036B3234064A4817B5D72B --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=8E55BA524E036B3234064A4817B5D72B --renderer-client-id=2 --mojo-platform-channel-handle=1740 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:2260
- - 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=35983EE1DA320B639082FB2A47BBD30E --mojo-platform-channel-handle=2300 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2436
- - 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=99DD451F94F5C33743CCCC63D699D5F5 --mojo-platform-channel-handle=1804 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4244
- - 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=DE2C27F4CB2271606DD4DA7D1B78F07B --mojo-platform-channel-handle=1728 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2276

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:3708

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
8d754bccb6a6f180cddc69c2fb35efa7

SHA1
b1f9bb0fbd21c770cd2a2c53fb6db88c19c504da

SHA256
f34072ed95f170b0deb24676e37f21b02dd3dc44aae5b84532bd15b46b170ac6

SHA512
b2bd249d6fa33be88032dd06771dbcaf9262c40e466292dc41d2646f35419cb36c4297c178b2426a1fe367a44def5b0d68aef86cfc8656c2ebbf78af68db23c6

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