27fbab1ff6d4e129bb1aa107d1c736872754f8c2411842fbb328bebef749f9d5

Analysis

max time kernel
144s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
08/01/2024, 04:08

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General

Target
4a661f2091ad271d75728113b2ef65f7.pdf
Size 98KB
Sample240108-ep9e5sbgh7
SHA256 27fbab1ff6d4e129bb1aa107d1c736872754f8c2411842fbb328bebef749f9d5
MD5 4a661f2091ad271d75728113b2ef65f7
SHA1 30f567b3d45ea50d7b8df7841bcc791d0c919a3f
SHA512 99c880da796554f4d3aa15348a3b73868ff3b47ac47cc5fa17b28ab83c0916fdf5057ecb9a5fd3c218b39adf91c5ad35f3e2414ae9aa368b4e9b092dc07c3a78
SSDEEP 3072:s7RNMRKAFPMQ6XMXtxZBBz2OFmUfitbNS68:q4RLFT6qvZBYM3B
MD5 SHA1 SHA512 SSDEEP

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-1-5-21-3791175113-1062217823-1177695025-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
1752	AcroRd32.exe
1752	AcroRd32.exe
1752	AcroRd32.exe
1752	AcroRd32.exe
1752	AcroRd32.exe
1752	AcroRd32.exe
1752	AcroRd32.exe
1752	AcroRd32.exe
1752	AcroRd32.exe
1752	AcroRd32.exe
1752	AcroRd32.exe
1752	AcroRd32.exe
1752	AcroRd32.exe
1752	AcroRd32.exe
1752	AcroRd32.exe
1752	AcroRd32.exe
1752	AcroRd32.exe
1752	AcroRd32.exe
1752	AcroRd32.exe
1752	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1752	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
1752	AcroRd32.exe
1752	AcroRd32.exe
1752	AcroRd32.exe
1752	AcroRd32.exe
1752	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 1752 wrote to memory of 1972	1752	AcroRd32.exe	93
PID 1752 wrote to memory of 1972	1752	AcroRd32.exe	93
PID 1752 wrote to memory of 1972	1752	AcroRd32.exe	93
PID 1972 wrote to memory of 1608	1972	RdrCEF.exe	94
PID 1972 wrote to memory of 1608	1972	RdrCEF.exe	94
PID 1972 wrote to memory of 1608	1972	RdrCEF.exe	94
PID 1972 wrote to memory of 1608	1972	RdrCEF.exe	94
PID 1972 wrote to memory of 1608	1972	RdrCEF.exe	94
PID 1972 wrote to memory of 1608	1972	RdrCEF.exe	94
PID 1972 wrote to memory of 1608	1972	RdrCEF.exe	94
PID 1972 wrote to memory of 1608	1972	RdrCEF.exe	94
PID 1972 wrote to memory of 1608	1972	RdrCEF.exe	94
PID 1972 wrote to memory of 1608	1972	RdrCEF.exe	94
PID 1972 wrote to memory of 1608	1972	RdrCEF.exe	94
PID 1972 wrote to memory of 1608	1972	RdrCEF.exe	94
PID 1972 wrote to memory of 1608	1972	RdrCEF.exe	94
PID 1972 wrote to memory of 1608	1972	RdrCEF.exe	94
PID 1972 wrote to memory of 1608	1972	RdrCEF.exe	94
PID 1972 wrote to memory of 1608	1972	RdrCEF.exe	94
PID 1972 wrote to memory of 1608	1972	RdrCEF.exe	94
PID 1972 wrote to memory of 1608	1972	RdrCEF.exe	94
PID 1972 wrote to memory of 1608	1972	RdrCEF.exe	94
PID 1972 wrote to memory of 1608	1972	RdrCEF.exe	94
PID 1972 wrote to memory of 1608	1972	RdrCEF.exe	94
PID 1972 wrote to memory of 1608	1972	RdrCEF.exe	94
PID 1972 wrote to memory of 1608	1972	RdrCEF.exe	94
PID 1972 wrote to memory of 1608	1972	RdrCEF.exe	94
PID 1972 wrote to memory of 1608	1972	RdrCEF.exe	94
PID 1972 wrote to memory of 1608	1972	RdrCEF.exe	94
PID 1972 wrote to memory of 1608	1972	RdrCEF.exe	94
PID 1972 wrote to memory of 1608	1972	RdrCEF.exe	94
PID 1972 wrote to memory of 1608	1972	RdrCEF.exe	94
PID 1972 wrote to memory of 1608	1972	RdrCEF.exe	94
PID 1972 wrote to memory of 1608	1972	RdrCEF.exe	94
PID 1972 wrote to memory of 1608	1972	RdrCEF.exe	94
PID 1972 wrote to memory of 1608	1972	RdrCEF.exe	94
PID 1972 wrote to memory of 1608	1972	RdrCEF.exe	94
PID 1972 wrote to memory of 1608	1972	RdrCEF.exe	94
PID 1972 wrote to memory of 1608	1972	RdrCEF.exe	94
PID 1972 wrote to memory of 1608	1972	RdrCEF.exe	94
PID 1972 wrote to memory of 1608	1972	RdrCEF.exe	94
PID 1972 wrote to memory of 1608	1972	RdrCEF.exe	94
PID 1972 wrote to memory of 1608	1972	RdrCEF.exe	94
PID 1972 wrote to memory of 1608	1972	RdrCEF.exe	94
PID 1972 wrote to memory of 4240	1972	RdrCEF.exe	95
PID 1972 wrote to memory of 4240	1972	RdrCEF.exe	95
PID 1972 wrote to memory of 4240	1972	RdrCEF.exe	95
PID 1972 wrote to memory of 4240	1972	RdrCEF.exe	95
PID 1972 wrote to memory of 4240	1972	RdrCEF.exe	95
PID 1972 wrote to memory of 4240	1972	RdrCEF.exe	95
PID 1972 wrote to memory of 4240	1972	RdrCEF.exe	95
PID 1972 wrote to memory of 4240	1972	RdrCEF.exe	95
PID 1972 wrote to memory of 4240	1972	RdrCEF.exe	95
PID 1972 wrote to memory of 4240	1972	RdrCEF.exe	95
PID 1972 wrote to memory of 4240	1972	RdrCEF.exe	95
PID 1972 wrote to memory of 4240	1972	RdrCEF.exe	95
PID 1972 wrote to memory of 4240	1972	RdrCEF.exe	95
PID 1972 wrote to memory of 4240	1972	RdrCEF.exe	95
PID 1972 wrote to memory of 4240	1972	RdrCEF.exe	95
PID 1972 wrote to memory of 4240	1972	RdrCEF.exe	95
PID 1972 wrote to memory of 4240	1972	RdrCEF.exe	95
PID 1972 wrote to memory of 4240	1972	RdrCEF.exe	95
PID 1972 wrote to memory of 4240	1972	RdrCEF.exe	95
PID 1972 wrote to memory of 4240	1972	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\4a661f2091ad271d75728113b2ef65f7.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:1752
- 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:1972
- - 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=B4DEB01A7F334EF3B2F0E02A2F8FCFAA --mojo-platform-channel-handle=1740 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1608
- - 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=A3870C1820A74A416E5EF0CA0BA9A442 --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=A3870C1820A74A416E5EF0CA0BA9A442 --renderer-client-id=2 --mojo-platform-channel-handle=1752 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4240
- - 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=A740F593DEF98C7E2DB45BB0281498E2 --mojo-platform-channel-handle=2156 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4640
- - 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=188FB161587172EF5737E2EFE4B5B4B5 --mojo-platform-channel-handle=2336 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:672
- - 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=418B263A4FE4F327310A419EEE95EEEF --mojo-platform-channel-handle=2184 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:932
- - 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=C25B8E4488BDED52155A8E77CC97E276 --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=C25B8E4488BDED52155A8E77CC97E276 --renderer-client-id=7 --mojo-platform-channel-handle=2140 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:5112

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:2584

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 f7a316cac87ca720c3e1406ed86be2d58ad7691e9cd87e27c25c2450e544135d
MD5 2ff1dbe3a90383fa9ad42ee675d7e67f
SHA1 0674460167245defb074cdfbea45f2d880acdf6a
SHA512 ee0fa54a4ed8228f4602ac7bd2d8cec71c087f7b027de01a263553d8ee0de2018625afc94ffd0b7dd307ac69aed264061ddb33a22ab8ffca5dd6811b23e45b22
SSDEEP 384:yezdThatELJ8SWvDTGJCesZsLglKhubvGZsLRZh+vS4:O+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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memory/1752-26-0x000000000B930000-0x000000000B980000-memory.dmp

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