92853b65366d780bd7e3a7140cb645059f8faad7c70eacc8115a171baf11093f

Analysis

max time kernel
446s
max time network
452s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
03/06/2024, 18:16

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General

Target

Documents/Net Viewer User Guide IT.pdf
Size

585KB
MD5

c571916b6d61c2983cec386f28c857c9
SHA1

aaed302e0074ae9dad3e5b5facd67f549d7b443a
SHA256

aa127046b597a0b46ed0734ccf9f3ff87a2a495943c41b76f50f2b53b64daa04
SHA512

8fe4492550b17ba53a0215bceef705a497c2ecde62c6dc81a69d33b5758e5b2d5de228344581a7cbb0cf985333180dc68ab0c0b316713ef47ae94067679ee4c5
SSDEEP

12288:J7+Hve7xCn9dwUSstmYr/AF+DK8enfjEOFEci3NtVO:J7UmE9pLr/tK6Ohidq

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-1-5-21-540404634-651139247-2967210625-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
2668	AcroRd32.exe
2668	AcroRd32.exe
2668	AcroRd32.exe
2668	AcroRd32.exe
2668	AcroRd32.exe
2668	AcroRd32.exe
2668	AcroRd32.exe
2668	AcroRd32.exe
2668	AcroRd32.exe
2668	AcroRd32.exe
2668	AcroRd32.exe
2668	AcroRd32.exe
2668	AcroRd32.exe
2668	AcroRd32.exe
2668	AcroRd32.exe
2668	AcroRd32.exe
2668	AcroRd32.exe
2668	AcroRd32.exe
2668	AcroRd32.exe
2668	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2668	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
2668	AcroRd32.exe
2668	AcroRd32.exe
2668	AcroRd32.exe
2668	AcroRd32.exe
2668	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2668 wrote to memory of 428	2668	AcroRd32.exe	84
PID 2668 wrote to memory of 428	2668	AcroRd32.exe	84
PID 2668 wrote to memory of 428	2668	AcroRd32.exe	84
PID 428 wrote to memory of 3076	428	RdrCEF.exe	87
PID 428 wrote to memory of 3076	428	RdrCEF.exe	87
PID 428 wrote to memory of 3076	428	RdrCEF.exe	87
PID 428 wrote to memory of 3076	428	RdrCEF.exe	87
PID 428 wrote to memory of 3076	428	RdrCEF.exe	87
PID 428 wrote to memory of 3076	428	RdrCEF.exe	87
PID 428 wrote to memory of 3076	428	RdrCEF.exe	87
PID 428 wrote to memory of 3076	428	RdrCEF.exe	87
PID 428 wrote to memory of 3076	428	RdrCEF.exe	87
PID 428 wrote to memory of 3076	428	RdrCEF.exe	87
PID 428 wrote to memory of 3076	428	RdrCEF.exe	87
PID 428 wrote to memory of 3076	428	RdrCEF.exe	87
PID 428 wrote to memory of 3076	428	RdrCEF.exe	87
PID 428 wrote to memory of 3076	428	RdrCEF.exe	87
PID 428 wrote to memory of 3076	428	RdrCEF.exe	87
PID 428 wrote to memory of 3076	428	RdrCEF.exe	87
PID 428 wrote to memory of 3076	428	RdrCEF.exe	87
PID 428 wrote to memory of 3076	428	RdrCEF.exe	87
PID 428 wrote to memory of 3076	428	RdrCEF.exe	87
PID 428 wrote to memory of 3076	428	RdrCEF.exe	87
PID 428 wrote to memory of 3076	428	RdrCEF.exe	87
PID 428 wrote to memory of 3076	428	RdrCEF.exe	87
PID 428 wrote to memory of 3076	428	RdrCEF.exe	87
PID 428 wrote to memory of 3076	428	RdrCEF.exe	87
PID 428 wrote to memory of 3076	428	RdrCEF.exe	87
PID 428 wrote to memory of 3076	428	RdrCEF.exe	87
PID 428 wrote to memory of 3076	428	RdrCEF.exe	87
PID 428 wrote to memory of 3076	428	RdrCEF.exe	87
PID 428 wrote to memory of 3076	428	RdrCEF.exe	87
PID 428 wrote to memory of 3076	428	RdrCEF.exe	87
PID 428 wrote to memory of 3076	428	RdrCEF.exe	87
PID 428 wrote to memory of 3076	428	RdrCEF.exe	87
PID 428 wrote to memory of 3076	428	RdrCEF.exe	87
PID 428 wrote to memory of 3076	428	RdrCEF.exe	87
PID 428 wrote to memory of 3076	428	RdrCEF.exe	87
PID 428 wrote to memory of 3076	428	RdrCEF.exe	87
PID 428 wrote to memory of 3076	428	RdrCEF.exe	87
PID 428 wrote to memory of 3076	428	RdrCEF.exe	87
PID 428 wrote to memory of 3076	428	RdrCEF.exe	87
PID 428 wrote to memory of 3076	428	RdrCEF.exe	87
PID 428 wrote to memory of 3076	428	RdrCEF.exe	87
PID 428 wrote to memory of 3332	428	RdrCEF.exe	88
PID 428 wrote to memory of 3332	428	RdrCEF.exe	88
PID 428 wrote to memory of 3332	428	RdrCEF.exe	88
PID 428 wrote to memory of 3332	428	RdrCEF.exe	88
PID 428 wrote to memory of 3332	428	RdrCEF.exe	88
PID 428 wrote to memory of 3332	428	RdrCEF.exe	88
PID 428 wrote to memory of 3332	428	RdrCEF.exe	88
PID 428 wrote to memory of 3332	428	RdrCEF.exe	88
PID 428 wrote to memory of 3332	428	RdrCEF.exe	88
PID 428 wrote to memory of 3332	428	RdrCEF.exe	88
PID 428 wrote to memory of 3332	428	RdrCEF.exe	88
PID 428 wrote to memory of 3332	428	RdrCEF.exe	88
PID 428 wrote to memory of 3332	428	RdrCEF.exe	88
PID 428 wrote to memory of 3332	428	RdrCEF.exe	88
PID 428 wrote to memory of 3332	428	RdrCEF.exe	88
PID 428 wrote to memory of 3332	428	RdrCEF.exe	88
PID 428 wrote to memory of 3332	428	RdrCEF.exe	88
PID 428 wrote to memory of 3332	428	RdrCEF.exe	88
PID 428 wrote to memory of 3332	428	RdrCEF.exe	88
PID 428 wrote to memory of 3332	428	RdrCEF.exe	88

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\Documents\Net Viewer User Guide IT.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:2668
- 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:428
- - 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=BB7235FC13A43BE19894FE3448AF1F4B --mojo-platform-channel-handle=1732 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3076
- - 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=9B38FA875287074EABC217C895E4ECAD --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=9B38FA875287074EABC217C895E4ECAD --renderer-client-id=2 --mojo-platform-channel-handle=1764 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:3332
- - 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=74E30B33E6B8266F849138BBC1BD6035 --mojo-platform-channel-handle=2308 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4028
- - 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=1BDEB644DA3673BF61F248AAF44AFE5A --mojo-platform-channel-handle=1804 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1012
- - 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=74EB8700BA990DE521C6E16BE761E34D --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=74EB8700BA990DE521C6E16BE761E34D --renderer-client-id=6 --mojo-platform-channel-handle=1944 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4684
- - 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=674CD01E55A41EC741595E3873794682 --mojo-platform-channel-handle=2320 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4924

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:4360

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
ef4e507c0016bd70131f43eb70e0a037

SHA1
8f5705175ef9678fafe1425a1f4813efe848ecdd

SHA256
6df5a0a7498af1c6297db7bc1d3772ff03b8c657b39656608f3f8b0947207dd4

SHA512
fbabcd2e90d446ac93cce457b668e15eb9133e5fdd6375318b9f2147b4658044331e5c76544576ce00f50f79d9e0be202ec53f8fba8da1c43604fba6f6d29a1a

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