a6c75119da64dbac63a6fa33b235bf73bdf714c3d05021f130c7ee0f84af9c34

Analysis

max time kernel
166s
max time network
187s
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, 01:41

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General

Target

4a1819f161035d9a7e08c695b072d6d5.pdf
Size

106KB
MD5

4a1819f161035d9a7e08c695b072d6d5
SHA1

c8b93acd4c248d2b5e842b887ee1882c59c82055
SHA256

a6c75119da64dbac63a6fa33b235bf73bdf714c3d05021f130c7ee0f84af9c34
SHA512

8cab75668542a9f2af9bdafc2799af8ff7b752a576eade035a0eb846ed3682186c821c09ec314992dc659d50a0a54b6a5066a85afb6c383d62c74b6a2b474452
SSDEEP

3072:yC48+eOLut1bpD1oj38qac2FuIDRxMJCNXtQM:yjgY2pDS4ceuURdXn

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-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
3268	AcroRd32.exe
3268	AcroRd32.exe
3268	AcroRd32.exe
3268	AcroRd32.exe
3268	AcroRd32.exe
3268	AcroRd32.exe
3268	AcroRd32.exe
3268	AcroRd32.exe
3268	AcroRd32.exe
3268	AcroRd32.exe
3268	AcroRd32.exe
3268	AcroRd32.exe
3268	AcroRd32.exe
3268	AcroRd32.exe
3268	AcroRd32.exe
3268	AcroRd32.exe
3268	AcroRd32.exe
3268	AcroRd32.exe
3268	AcroRd32.exe
3268	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3268	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
3268	AcroRd32.exe
3268	AcroRd32.exe
3268	AcroRd32.exe
3268	AcroRd32.exe
3268	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 3268 wrote to memory of 2140	3268	AcroRd32.exe	96
PID 3268 wrote to memory of 2140	3268	AcroRd32.exe	96
PID 3268 wrote to memory of 2140	3268	AcroRd32.exe	96
PID 2140 wrote to memory of 4236	2140	RdrCEF.exe	97
PID 2140 wrote to memory of 4236	2140	RdrCEF.exe	97
PID 2140 wrote to memory of 4236	2140	RdrCEF.exe	97
PID 2140 wrote to memory of 4236	2140	RdrCEF.exe	97
PID 2140 wrote to memory of 4236	2140	RdrCEF.exe	97
PID 2140 wrote to memory of 4236	2140	RdrCEF.exe	97
PID 2140 wrote to memory of 4236	2140	RdrCEF.exe	97
PID 2140 wrote to memory of 4236	2140	RdrCEF.exe	97
PID 2140 wrote to memory of 4236	2140	RdrCEF.exe	97
PID 2140 wrote to memory of 4236	2140	RdrCEF.exe	97
PID 2140 wrote to memory of 4236	2140	RdrCEF.exe	97
PID 2140 wrote to memory of 4236	2140	RdrCEF.exe	97
PID 2140 wrote to memory of 4236	2140	RdrCEF.exe	97
PID 2140 wrote to memory of 4236	2140	RdrCEF.exe	97
PID 2140 wrote to memory of 4236	2140	RdrCEF.exe	97
PID 2140 wrote to memory of 4236	2140	RdrCEF.exe	97
PID 2140 wrote to memory of 4236	2140	RdrCEF.exe	97
PID 2140 wrote to memory of 4236	2140	RdrCEF.exe	97
PID 2140 wrote to memory of 4236	2140	RdrCEF.exe	97
PID 2140 wrote to memory of 4236	2140	RdrCEF.exe	97
PID 2140 wrote to memory of 4236	2140	RdrCEF.exe	97
PID 2140 wrote to memory of 4236	2140	RdrCEF.exe	97
PID 2140 wrote to memory of 4236	2140	RdrCEF.exe	97
PID 2140 wrote to memory of 4236	2140	RdrCEF.exe	97
PID 2140 wrote to memory of 4236	2140	RdrCEF.exe	97
PID 2140 wrote to memory of 4236	2140	RdrCEF.exe	97
PID 2140 wrote to memory of 4236	2140	RdrCEF.exe	97
PID 2140 wrote to memory of 4236	2140	RdrCEF.exe	97
PID 2140 wrote to memory of 4236	2140	RdrCEF.exe	97
PID 2140 wrote to memory of 4236	2140	RdrCEF.exe	97
PID 2140 wrote to memory of 4236	2140	RdrCEF.exe	97
PID 2140 wrote to memory of 4236	2140	RdrCEF.exe	97
PID 2140 wrote to memory of 4236	2140	RdrCEF.exe	97
PID 2140 wrote to memory of 4236	2140	RdrCEF.exe	97
PID 2140 wrote to memory of 4236	2140	RdrCEF.exe	97
PID 2140 wrote to memory of 4236	2140	RdrCEF.exe	97
PID 2140 wrote to memory of 4236	2140	RdrCEF.exe	97
PID 2140 wrote to memory of 4236	2140	RdrCEF.exe	97
PID 2140 wrote to memory of 4236	2140	RdrCEF.exe	97
PID 2140 wrote to memory of 4236	2140	RdrCEF.exe	97
PID 2140 wrote to memory of 4236	2140	RdrCEF.exe	97
PID 2140 wrote to memory of 3028	2140	RdrCEF.exe	98
PID 2140 wrote to memory of 3028	2140	RdrCEF.exe	98
PID 2140 wrote to memory of 3028	2140	RdrCEF.exe	98
PID 2140 wrote to memory of 3028	2140	RdrCEF.exe	98
PID 2140 wrote to memory of 3028	2140	RdrCEF.exe	98
PID 2140 wrote to memory of 3028	2140	RdrCEF.exe	98
PID 2140 wrote to memory of 3028	2140	RdrCEF.exe	98
PID 2140 wrote to memory of 3028	2140	RdrCEF.exe	98
PID 2140 wrote to memory of 3028	2140	RdrCEF.exe	98
PID 2140 wrote to memory of 3028	2140	RdrCEF.exe	98
PID 2140 wrote to memory of 3028	2140	RdrCEF.exe	98
PID 2140 wrote to memory of 3028	2140	RdrCEF.exe	98
PID 2140 wrote to memory of 3028	2140	RdrCEF.exe	98
PID 2140 wrote to memory of 3028	2140	RdrCEF.exe	98
PID 2140 wrote to memory of 3028	2140	RdrCEF.exe	98
PID 2140 wrote to memory of 3028	2140	RdrCEF.exe	98
PID 2140 wrote to memory of 3028	2140	RdrCEF.exe	98
PID 2140 wrote to memory of 3028	2140	RdrCEF.exe	98
PID 2140 wrote to memory of 3028	2140	RdrCEF.exe	98
PID 2140 wrote to memory of 3028	2140	RdrCEF.exe	98

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\4a1819f161035d9a7e08c695b072d6d5.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:3268
- 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:2140
- - 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=E15B2CCBB7A74BB5164A859C24E34D02 --mojo-platform-channel-handle=1740 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4236
- - 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=FFD59A9702832A1D224A0C30F60F1BE5 --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=FFD59A9702832A1D224A0C30F60F1BE5 --renderer-client-id=2 --mojo-platform-channel-handle=1748 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:3028
- - 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=5C4D86132E4CA74F525776BA514DEA86 --mojo-platform-channel-handle=2312 --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=renderer --disable-browser-side-navigation --disable-gpu-compositing --service-pipe-token=F9EB4068D9917DD509AEC4FE4468FFA8 --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=F9EB4068D9917DD509AEC4FE4468FFA8 --renderer-client-id=5 --mojo-platform-channel-handle=2420 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4844
- - 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=82A85AA3C389DFC49665B042FCA1FF1A --mojo-platform-channel-handle=2672 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2404
- - 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=5040E2C687EFC6FFCDA1F2C2024FB6C4 --mojo-platform-channel-handle=2368 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4856

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:2416

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
439212bdd620731bc7295fcbba30ab3d

SHA1
ae5119e978cd88ee127d091ad2fc47e335a9c310

SHA256
e47e333a30d51c8fd3ac10da408e8d48dd679570526ffdd3cf427c4a3a00bdce

SHA512
7ee09c41fcbfbabfbe6933fe647755d66a123a0d942b92bfbc184c43b7be00afb6e038ba51db39510cdda0ae6c244f70f578f5ac3afdbd9643d35cd16469b873

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