88bbce33d556af4131d4c1625eb5d6c43b2cf6b41a76cadd66afd4c33b614e60

Analysis

max time kernel
145s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
04/02/2024, 12:51

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General

Target

8f31585c87c2d005686568ec8de51679.pdf
Size

82KB
MD5

8f31585c87c2d005686568ec8de51679
SHA1

6c2d10b69c21dd54bf8b6c88c573c42a9bb232c0
SHA256

88bbce33d556af4131d4c1625eb5d6c43b2cf6b41a76cadd66afd4c33b614e60
SHA512

3b03f20dfcf4537056477c2add0815bd4258057b28f08f060a7de0ef66984b952578d29fd466878dbd1f534c1bf76e414b6fc84d48f54100bc5a6a02620cea61
SSDEEP

1536:i6/lMqf6XSVxBpWjcavX2I+m71he/44qZY5x5DGIWyA9N4zINWwpOSmvLZt:bxbBwh21MYwRZ8xxGCAL400SC

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-1-5-21-1232405761-1209240240-3206092754-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
2588	AcroRd32.exe
2588	AcroRd32.exe
2588	AcroRd32.exe
2588	AcroRd32.exe
2588	AcroRd32.exe
2588	AcroRd32.exe
2588	AcroRd32.exe
2588	AcroRd32.exe
2588	AcroRd32.exe
2588	AcroRd32.exe
2588	AcroRd32.exe
2588	AcroRd32.exe
2588	AcroRd32.exe
2588	AcroRd32.exe
2588	AcroRd32.exe
2588	AcroRd32.exe
2588	AcroRd32.exe
2588	AcroRd32.exe
2588	AcroRd32.exe
2588	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2588	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
2588	AcroRd32.exe
2588	AcroRd32.exe
2588	AcroRd32.exe
2588	AcroRd32.exe
2588	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2588 wrote to memory of 3400	2588	AcroRd32.exe	87
PID 2588 wrote to memory of 3400	2588	AcroRd32.exe	87
PID 2588 wrote to memory of 3400	2588	AcroRd32.exe	87
PID 3400 wrote to memory of 1172	3400	RdrCEF.exe	90
PID 3400 wrote to memory of 1172	3400	RdrCEF.exe	90
PID 3400 wrote to memory of 1172	3400	RdrCEF.exe	90
PID 3400 wrote to memory of 1172	3400	RdrCEF.exe	90
PID 3400 wrote to memory of 1172	3400	RdrCEF.exe	90
PID 3400 wrote to memory of 1172	3400	RdrCEF.exe	90
PID 3400 wrote to memory of 1172	3400	RdrCEF.exe	90
PID 3400 wrote to memory of 1172	3400	RdrCEF.exe	90
PID 3400 wrote to memory of 1172	3400	RdrCEF.exe	90
PID 3400 wrote to memory of 1172	3400	RdrCEF.exe	90
PID 3400 wrote to memory of 1172	3400	RdrCEF.exe	90
PID 3400 wrote to memory of 1172	3400	RdrCEF.exe	90
PID 3400 wrote to memory of 1172	3400	RdrCEF.exe	90
PID 3400 wrote to memory of 1172	3400	RdrCEF.exe	90
PID 3400 wrote to memory of 1172	3400	RdrCEF.exe	90
PID 3400 wrote to memory of 1172	3400	RdrCEF.exe	90
PID 3400 wrote to memory of 1172	3400	RdrCEF.exe	90
PID 3400 wrote to memory of 1172	3400	RdrCEF.exe	90
PID 3400 wrote to memory of 1172	3400	RdrCEF.exe	90
PID 3400 wrote to memory of 1172	3400	RdrCEF.exe	90
PID 3400 wrote to memory of 1172	3400	RdrCEF.exe	90
PID 3400 wrote to memory of 1172	3400	RdrCEF.exe	90
PID 3400 wrote to memory of 1172	3400	RdrCEF.exe	90
PID 3400 wrote to memory of 1172	3400	RdrCEF.exe	90
PID 3400 wrote to memory of 1172	3400	RdrCEF.exe	90
PID 3400 wrote to memory of 1172	3400	RdrCEF.exe	90
PID 3400 wrote to memory of 1172	3400	RdrCEF.exe	90
PID 3400 wrote to memory of 1172	3400	RdrCEF.exe	90
PID 3400 wrote to memory of 1172	3400	RdrCEF.exe	90
PID 3400 wrote to memory of 1172	3400	RdrCEF.exe	90
PID 3400 wrote to memory of 1172	3400	RdrCEF.exe	90
PID 3400 wrote to memory of 1172	3400	RdrCEF.exe	90
PID 3400 wrote to memory of 1172	3400	RdrCEF.exe	90
PID 3400 wrote to memory of 1172	3400	RdrCEF.exe	90
PID 3400 wrote to memory of 1172	3400	RdrCEF.exe	90
PID 3400 wrote to memory of 1172	3400	RdrCEF.exe	90
PID 3400 wrote to memory of 1172	3400	RdrCEF.exe	90
PID 3400 wrote to memory of 1172	3400	RdrCEF.exe	90
PID 3400 wrote to memory of 1172	3400	RdrCEF.exe	90
PID 3400 wrote to memory of 1172	3400	RdrCEF.exe	90
PID 3400 wrote to memory of 1172	3400	RdrCEF.exe	90
PID 3400 wrote to memory of 548	3400	RdrCEF.exe	91
PID 3400 wrote to memory of 548	3400	RdrCEF.exe	91
PID 3400 wrote to memory of 548	3400	RdrCEF.exe	91
PID 3400 wrote to memory of 548	3400	RdrCEF.exe	91
PID 3400 wrote to memory of 548	3400	RdrCEF.exe	91
PID 3400 wrote to memory of 548	3400	RdrCEF.exe	91
PID 3400 wrote to memory of 548	3400	RdrCEF.exe	91
PID 3400 wrote to memory of 548	3400	RdrCEF.exe	91
PID 3400 wrote to memory of 548	3400	RdrCEF.exe	91
PID 3400 wrote to memory of 548	3400	RdrCEF.exe	91
PID 3400 wrote to memory of 548	3400	RdrCEF.exe	91
PID 3400 wrote to memory of 548	3400	RdrCEF.exe	91
PID 3400 wrote to memory of 548	3400	RdrCEF.exe	91
PID 3400 wrote to memory of 548	3400	RdrCEF.exe	91
PID 3400 wrote to memory of 548	3400	RdrCEF.exe	91
PID 3400 wrote to memory of 548	3400	RdrCEF.exe	91
PID 3400 wrote to memory of 548	3400	RdrCEF.exe	91
PID 3400 wrote to memory of 548	3400	RdrCEF.exe	91
PID 3400 wrote to memory of 548	3400	RdrCEF.exe	91
PID 3400 wrote to memory of 548	3400	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\8f31585c87c2d005686568ec8de51679.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:2588
- 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:3400
- - 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=EB45FFAFCEB5B8339C671B03F1A7F339 --mojo-platform-channel-handle=1740 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1172
- - 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=700A395F9D137669DF7763FD44C5CAE6 --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=700A395F9D137669DF7763FD44C5CAE6 --renderer-client-id=2 --mojo-platform-channel-handle=1748 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:548
- - 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=7A9969A5A0EEA33C4E672F5E4EF44122 --mojo-platform-channel-handle=2312 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1248
- - 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=A7BB67B9496B49C808FCF8E959B861E2 --mojo-platform-channel-handle=2440 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4828
- - 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=52A5485FDEE82003EFA419A6F72E496C --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=52A5485FDEE82003EFA419A6F72E496C --renderer-client-id=6 --mojo-platform-channel-handle=2432 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4976
- - 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=E752AAFA86F869ED19732A3072B72B92 --mojo-platform-channel-handle=1720 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4508

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:4268

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
add5d51aa35dcf3fe86798ec6f8e4661

SHA1
36ae612eeb3a5f72ebcbf90142f6643ca6fd3be9

SHA256
63f65b2e7b823cbf3f39752284b13a3fbcb17e4c1c0789a4c5269aec81a8e5eb

SHA512
d2a371381f2356e11f786dce37153e924a5d1048998628516a3c256fb545dc85954b91e53e33d874e00ee744ff148d7fa8db72d698b1426673205bf429ae8a5b

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
memory/2588-28-0x000000000C160000-0x000000000C181000-memory.dmp

Filesize
132KB

Download