41dee6b78d131c2a9b712b37e9f3f9d31e6b0556699a3b0352e5f2ad77850c00

Analysis

max time kernel
153s
max time network
170s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
25/12/2023, 08:50

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General

Target
131ecc579939c8e2f961f988e6b68626.pdf
Size 1KB
Sample231225-krvbwsegb9
SHA256 41dee6b78d131c2a9b712b37e9f3f9d31e6b0556699a3b0352e5f2ad77850c00
MD5 131ecc579939c8e2f961f988e6b68626
SHA1 e74d774d57db51170697693777dbe43ab1c34c21
SHA512 a8f3a2a7a6b949a4b9bb8040c219ee1280480278dc2f4ce5789484b820e7c25e256b9c6e31193772c160e9ccca978cd658ad94e82bac36ab3bde9b5e536d7ae2
MD5 SHA1 SHA512

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-1-5-21-983843758-932321429-1636175382-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
572	AcroRd32.exe
572	AcroRd32.exe
572	AcroRd32.exe
572	AcroRd32.exe
572	AcroRd32.exe
572	AcroRd32.exe
572	AcroRd32.exe
572	AcroRd32.exe
572	AcroRd32.exe
572	AcroRd32.exe
572	AcroRd32.exe
572	AcroRd32.exe
572	AcroRd32.exe
572	AcroRd32.exe
572	AcroRd32.exe
572	AcroRd32.exe
572	AcroRd32.exe
572	AcroRd32.exe
572	AcroRd32.exe
572	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
572	AcroRd32.exe

Suspicious use of SetWindowsHookEx 7 IoCs

pid	Process
572	AcroRd32.exe
572	AcroRd32.exe
572	AcroRd32.exe
572	AcroRd32.exe
572	AcroRd32.exe
572	AcroRd32.exe
572	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 572 wrote to memory of 4460	572	AcroRd32.exe	91
PID 572 wrote to memory of 4460	572	AcroRd32.exe	91
PID 572 wrote to memory of 4460	572	AcroRd32.exe	91
PID 4460 wrote to memory of 1816	4460	RdrCEF.exe	94
PID 4460 wrote to memory of 1816	4460	RdrCEF.exe	94
PID 4460 wrote to memory of 1816	4460	RdrCEF.exe	94
PID 4460 wrote to memory of 1816	4460	RdrCEF.exe	94
PID 4460 wrote to memory of 1816	4460	RdrCEF.exe	94
PID 4460 wrote to memory of 1816	4460	RdrCEF.exe	94
PID 4460 wrote to memory of 1816	4460	RdrCEF.exe	94
PID 4460 wrote to memory of 1816	4460	RdrCEF.exe	94
PID 4460 wrote to memory of 1816	4460	RdrCEF.exe	94
PID 4460 wrote to memory of 1816	4460	RdrCEF.exe	94
PID 4460 wrote to memory of 1816	4460	RdrCEF.exe	94
PID 4460 wrote to memory of 1816	4460	RdrCEF.exe	94
PID 4460 wrote to memory of 1816	4460	RdrCEF.exe	94
PID 4460 wrote to memory of 1816	4460	RdrCEF.exe	94
PID 4460 wrote to memory of 1816	4460	RdrCEF.exe	94
PID 4460 wrote to memory of 1816	4460	RdrCEF.exe	94
PID 4460 wrote to memory of 1816	4460	RdrCEF.exe	94
PID 4460 wrote to memory of 1816	4460	RdrCEF.exe	94
PID 4460 wrote to memory of 1816	4460	RdrCEF.exe	94
PID 4460 wrote to memory of 1816	4460	RdrCEF.exe	94
PID 4460 wrote to memory of 1816	4460	RdrCEF.exe	94
PID 4460 wrote to memory of 1816	4460	RdrCEF.exe	94
PID 4460 wrote to memory of 1816	4460	RdrCEF.exe	94
PID 4460 wrote to memory of 1816	4460	RdrCEF.exe	94
PID 4460 wrote to memory of 1816	4460	RdrCEF.exe	94
PID 4460 wrote to memory of 1816	4460	RdrCEF.exe	94
PID 4460 wrote to memory of 1816	4460	RdrCEF.exe	94
PID 4460 wrote to memory of 1816	4460	RdrCEF.exe	94
PID 4460 wrote to memory of 1816	4460	RdrCEF.exe	94
PID 4460 wrote to memory of 1816	4460	RdrCEF.exe	94
PID 4460 wrote to memory of 1816	4460	RdrCEF.exe	94
PID 4460 wrote to memory of 1816	4460	RdrCEF.exe	94
PID 4460 wrote to memory of 1816	4460	RdrCEF.exe	94
PID 4460 wrote to memory of 1816	4460	RdrCEF.exe	94
PID 4460 wrote to memory of 1816	4460	RdrCEF.exe	94
PID 4460 wrote to memory of 1816	4460	RdrCEF.exe	94
PID 4460 wrote to memory of 1816	4460	RdrCEF.exe	94
PID 4460 wrote to memory of 1816	4460	RdrCEF.exe	94
PID 4460 wrote to memory of 1816	4460	RdrCEF.exe	94
PID 4460 wrote to memory of 1816	4460	RdrCEF.exe	94
PID 4460 wrote to memory of 1816	4460	RdrCEF.exe	94
PID 4460 wrote to memory of 3168	4460	RdrCEF.exe	95
PID 4460 wrote to memory of 3168	4460	RdrCEF.exe	95
PID 4460 wrote to memory of 3168	4460	RdrCEF.exe	95
PID 4460 wrote to memory of 3168	4460	RdrCEF.exe	95
PID 4460 wrote to memory of 3168	4460	RdrCEF.exe	95
PID 4460 wrote to memory of 3168	4460	RdrCEF.exe	95
PID 4460 wrote to memory of 3168	4460	RdrCEF.exe	95
PID 4460 wrote to memory of 3168	4460	RdrCEF.exe	95
PID 4460 wrote to memory of 3168	4460	RdrCEF.exe	95
PID 4460 wrote to memory of 3168	4460	RdrCEF.exe	95
PID 4460 wrote to memory of 3168	4460	RdrCEF.exe	95
PID 4460 wrote to memory of 3168	4460	RdrCEF.exe	95
PID 4460 wrote to memory of 3168	4460	RdrCEF.exe	95
PID 4460 wrote to memory of 3168	4460	RdrCEF.exe	95
PID 4460 wrote to memory of 3168	4460	RdrCEF.exe	95
PID 4460 wrote to memory of 3168	4460	RdrCEF.exe	95
PID 4460 wrote to memory of 3168	4460	RdrCEF.exe	95
PID 4460 wrote to memory of 3168	4460	RdrCEF.exe	95
PID 4460 wrote to memory of 3168	4460	RdrCEF.exe	95
PID 4460 wrote to memory of 3168	4460	RdrCEF.exe	95

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\131ecc579939c8e2f961f988e6b68626.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:572
- 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:4460
- - 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=3C24BEF50D0D435D013F07C9663E80D2 --mojo-platform-channel-handle=1740 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1816
- - 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=CDCCEE95B8231C3E99114F5F2FE1385A --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=CDCCEE95B8231C3E99114F5F2FE1385A --renderer-client-id=2 --mojo-platform-channel-handle=1756 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:3168
- - 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=B458E734AC1F7D036FB711B3DCCFE3FD --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=B458E734AC1F7D036FB711B3DCCFE3FD --renderer-client-id=4 --mojo-platform-channel-handle=2316 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4412
- - 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=E8F3D00A2C924B9F6874036F0FC33789 --mojo-platform-channel-handle=2320 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1768
- - 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=05CA2FE699E0478A3B8858A6DF7575B9 --mojo-platform-channel-handle=2580 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1952
- - 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=55DA02F882DAC219C60EE1F936400AEC --mojo-platform-channel-handle=2560 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3600

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

ReaderMessages

Path C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\ReaderMessages
Size 64KB
SHA256 5fcc4fa4f1a0e4aec6364157cb81b9e75c9ef9c6bc76b160bd26d26640db2b48
MD5 b44d02957b2b467de5e5ae647421bc9b
SHA1 0caa8b189089631722c13778a1f8e44aa265266d
SHA512 d1a6abd15a0fa67c0541044c10c4465d0d867a7c34542f1394535859f86ccfdbafdbb43b9ebd7c13123b3492395c1fd98fd02ec353547e31235eab05fdd77a61
SSDEEP 384:ye1dThatELJ8SWvDTGJCesZsLglKhubvGZsLRZh+vS4:c+elZsLQCZsL3hUS4
MD5 SHA1 SHA512 SSDEEP

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ReaderMessages

Path C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\ReaderMessages
Size 36KB
SHA256 b1b77e96279ead2b460de3de70e2ea4f5ad1b853598a4e27a5caf3f1a32cc4f3
MD5 b30d3becc8731792523d599d949e63f5
SHA1 19350257e42d7aee17fb3bf139a9d3adb330fad4
SHA512 523f54895fb07f62b9a5f72c8b62e83d4d9506bda57b183818615f6eb7286e3b9c5a50409bc5c5164867c3ccdeae88aa395ecca6bc7e36d991552f857510792e
SSDEEP 24:TLiXlzkrFsgIFsxX3pALXmnHpkDGjmcxBSkomXk+2m9RFTsyg+wmf9Mzm+Zs3tGl:TqlmFTIF3XmHjBoGGR+jMz+LhT
MD5 SHA1 SHA512 SSDEEP

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ReaderMessages

Path C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\ReaderMessages
Size 56KB
SHA256 111dac2948e4cecb10b0d2e10d8afaa663d78d643826b592d6414a1fd77cc131
MD5 752a1f26b18748311b691c7d8fc20633
SHA1 c1f8e83eebc1cc1e9b88c773338eb09ff82ab862
SHA512 a2f5f262faf2c3e9756da94b2c47787ce3a9391b5bd53581578aa9a764449e114836704d6dec4aadc097fed4c818831baa11affa1eb25be2bfad9349bb090fe5
SSDEEP 192:wedRBvVrThe4p4/KhTB4p4CitZtkZsLRGVDbw6H3ph+v3YQa9:weZdThkKhBvkZsLRGlzh+vS9
MD5 SHA1 SHA512 SSDEEP

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