81b039b4360c59d8330d8c1407e97eac7092b6726a2112d5b583e347e3dbb11c

Analysis

max time kernel
143s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
03-02-2024 05:58

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General

Target

8b933db865af05ab022296f250a8130d.pdf
Size

74KB
MD5

8b933db865af05ab022296f250a8130d
SHA1

de13eb2abd63b744b93d8cc82a1d584aa19fcfbb
SHA256

81b039b4360c59d8330d8c1407e97eac7092b6726a2112d5b583e347e3dbb11c
SHA512

47e4ca6df83407616def4f1fa5b5862f66ee919eb17703596c8650b7917837b7e5b6db58679a64007a879ddcbc86242e9685ca93cd8ecc08ef36210ab90a1947
SSDEEP

1536:4JKOt+cd+pJZ4RBAsbSyyOua7gdIWTgNxgaCM7MOSc563aPIOQmmjjxKhPN3GUac:4Ft+O+JZ41S/0wgbgLsMOhIiI79f8hPF

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
3864	AcroRd32.exe
3864	AcroRd32.exe
3864	AcroRd32.exe
3864	AcroRd32.exe
3864	AcroRd32.exe
3864	AcroRd32.exe
3864	AcroRd32.exe
3864	AcroRd32.exe
3864	AcroRd32.exe
3864	AcroRd32.exe
3864	AcroRd32.exe
3864	AcroRd32.exe
3864	AcroRd32.exe
3864	AcroRd32.exe
3864	AcroRd32.exe
3864	AcroRd32.exe
3864	AcroRd32.exe
3864	AcroRd32.exe
3864	AcroRd32.exe
3864	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3864	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
3864	AcroRd32.exe
3864	AcroRd32.exe
3864	AcroRd32.exe
3864	AcroRd32.exe
3864	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 3864 wrote to memory of 4360	3864	AcroRd32.exe	92
PID 3864 wrote to memory of 4360	3864	AcroRd32.exe	92
PID 3864 wrote to memory of 4360	3864	AcroRd32.exe	92
PID 4360 wrote to memory of 1348	4360	RdrCEF.exe	93
PID 4360 wrote to memory of 1348	4360	RdrCEF.exe	93
PID 4360 wrote to memory of 1348	4360	RdrCEF.exe	93
PID 4360 wrote to memory of 1348	4360	RdrCEF.exe	93
PID 4360 wrote to memory of 1348	4360	RdrCEF.exe	93
PID 4360 wrote to memory of 1348	4360	RdrCEF.exe	93
PID 4360 wrote to memory of 1348	4360	RdrCEF.exe	93
PID 4360 wrote to memory of 1348	4360	RdrCEF.exe	93
PID 4360 wrote to memory of 1348	4360	RdrCEF.exe	93
PID 4360 wrote to memory of 1348	4360	RdrCEF.exe	93
PID 4360 wrote to memory of 1348	4360	RdrCEF.exe	93
PID 4360 wrote to memory of 1348	4360	RdrCEF.exe	93
PID 4360 wrote to memory of 1348	4360	RdrCEF.exe	93
PID 4360 wrote to memory of 1348	4360	RdrCEF.exe	93
PID 4360 wrote to memory of 1348	4360	RdrCEF.exe	93
PID 4360 wrote to memory of 1348	4360	RdrCEF.exe	93
PID 4360 wrote to memory of 1348	4360	RdrCEF.exe	93
PID 4360 wrote to memory of 1348	4360	RdrCEF.exe	93
PID 4360 wrote to memory of 1348	4360	RdrCEF.exe	93
PID 4360 wrote to memory of 1348	4360	RdrCEF.exe	93
PID 4360 wrote to memory of 1348	4360	RdrCEF.exe	93
PID 4360 wrote to memory of 1348	4360	RdrCEF.exe	93
PID 4360 wrote to memory of 1348	4360	RdrCEF.exe	93
PID 4360 wrote to memory of 1348	4360	RdrCEF.exe	93
PID 4360 wrote to memory of 1348	4360	RdrCEF.exe	93
PID 4360 wrote to memory of 1348	4360	RdrCEF.exe	93
PID 4360 wrote to memory of 1348	4360	RdrCEF.exe	93
PID 4360 wrote to memory of 1348	4360	RdrCEF.exe	93
PID 4360 wrote to memory of 1348	4360	RdrCEF.exe	93
PID 4360 wrote to memory of 1348	4360	RdrCEF.exe	93
PID 4360 wrote to memory of 1348	4360	RdrCEF.exe	93
PID 4360 wrote to memory of 1348	4360	RdrCEF.exe	93
PID 4360 wrote to memory of 1348	4360	RdrCEF.exe	93
PID 4360 wrote to memory of 1348	4360	RdrCEF.exe	93
PID 4360 wrote to memory of 1348	4360	RdrCEF.exe	93
PID 4360 wrote to memory of 1348	4360	RdrCEF.exe	93
PID 4360 wrote to memory of 1348	4360	RdrCEF.exe	93
PID 4360 wrote to memory of 1348	4360	RdrCEF.exe	93
PID 4360 wrote to memory of 1348	4360	RdrCEF.exe	93
PID 4360 wrote to memory of 1348	4360	RdrCEF.exe	93
PID 4360 wrote to memory of 1348	4360	RdrCEF.exe	93
PID 4360 wrote to memory of 3088	4360	RdrCEF.exe	94
PID 4360 wrote to memory of 3088	4360	RdrCEF.exe	94
PID 4360 wrote to memory of 3088	4360	RdrCEF.exe	94
PID 4360 wrote to memory of 3088	4360	RdrCEF.exe	94
PID 4360 wrote to memory of 3088	4360	RdrCEF.exe	94
PID 4360 wrote to memory of 3088	4360	RdrCEF.exe	94
PID 4360 wrote to memory of 3088	4360	RdrCEF.exe	94
PID 4360 wrote to memory of 3088	4360	RdrCEF.exe	94
PID 4360 wrote to memory of 3088	4360	RdrCEF.exe	94
PID 4360 wrote to memory of 3088	4360	RdrCEF.exe	94
PID 4360 wrote to memory of 3088	4360	RdrCEF.exe	94
PID 4360 wrote to memory of 3088	4360	RdrCEF.exe	94
PID 4360 wrote to memory of 3088	4360	RdrCEF.exe	94
PID 4360 wrote to memory of 3088	4360	RdrCEF.exe	94
PID 4360 wrote to memory of 3088	4360	RdrCEF.exe	94
PID 4360 wrote to memory of 3088	4360	RdrCEF.exe	94
PID 4360 wrote to memory of 3088	4360	RdrCEF.exe	94
PID 4360 wrote to memory of 3088	4360	RdrCEF.exe	94
PID 4360 wrote to memory of 3088	4360	RdrCEF.exe	94
PID 4360 wrote to memory of 3088	4360	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\8b933db865af05ab022296f250a8130d.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:3864
- 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:4360
- - 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=941EC9C6886A32DCE19E7F5FB93D3BD1 --mojo-platform-channel-handle=1748 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1348
- - 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=4157846FD65AE656C8EE2B54A71EB732 --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=4157846FD65AE656C8EE2B54A71EB732 --renderer-client-id=2 --mojo-platform-channel-handle=1760 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:3088
- - 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=8E0A2BFFCC0AA52F72592D94C6735A0E --mojo-platform-channel-handle=2276 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1712
- - 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=EC4C5F329C46B24484542E0C0F14D135 --mojo-platform-channel-handle=2404 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4648
- - 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=826B42C75E91957A00402D52D5DE5601 --mojo-platform-channel-handle=2308 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3928
- - 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=44F1D50C52859D11589FD7D20D54848C --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=44F1D50C52859D11589FD7D20D54848C --renderer-client-id=8 --mojo-platform-channel-handle=2412 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:2868

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:964

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
185e85da498dd19ec8fb506841fc6dbb

SHA1
231fbbf89b22f273ad8aa17709573973ccc48ab1

SHA256
b5768b1532eefa436f66aa2e9444203fb3da4b508ebaeb6733a3e4f6c903fe25

SHA512
c37426c4b2b76174d0d0b37cd0fd21642b59a60d6442ca54f8df022b0fd4c1a397d901fee550d69bc0410ff586e1cec634f12d2842e4b578147af09c3957ca4a

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/3864-124-0x000000000A890000-0x000000000AB3B000-memory.dmp

Filesize
2.7MB

Download