eff95b2385427ecc9747310c8bf282f93cfa7b7b60b97d1182f712310ba4d5c1

Analysis

max time kernel
141s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20231025-en
resource tags

arch:x64arch:x86image:win10v2004-20231025-enlocale:en-usos:windows10-2004-x64system
submitted
09/11/2023, 01:06

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General

Target
132d3c24048c5e04d5613cbbec077a4a.pdf
Size 971KB
Sample231109-bgflbaef31
SHA256 eff95b2385427ecc9747310c8bf282f93cfa7b7b60b97d1182f712310ba4d5c1
MD5 132d3c24048c5e04d5613cbbec077a4a
SHA1 3c9ae7ab1a13bd22dc36c25813a9f93766ae8d19
SHA512 46352e5de702cc9adcba658fbd2a04fce1db0b6790a96ff9b7129a62b997e2b9c7697eafceba97bb2d1171a874be41fabe55ad03a2295fbde827dc60955a6870
SSDEEP 24576:tqJzCmg4g/x+LH4ZC8JrB/kQI3ouRugmRos:YilZmHkJrVkQI3oKu1
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-1-5-21-177160434-2093019976-369403398-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
4392	AcroRd32.exe
4392	AcroRd32.exe
4392	AcroRd32.exe
4392	AcroRd32.exe
4392	AcroRd32.exe
4392	AcroRd32.exe
4392	AcroRd32.exe
4392	AcroRd32.exe
4392	AcroRd32.exe
4392	AcroRd32.exe
4392	AcroRd32.exe
4392	AcroRd32.exe
4392	AcroRd32.exe
4392	AcroRd32.exe
4392	AcroRd32.exe
4392	AcroRd32.exe
4392	AcroRd32.exe
4392	AcroRd32.exe
4392	AcroRd32.exe
4392	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4392	AcroRd32.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
4392	AcroRd32.exe
4392	AcroRd32.exe
4392	AcroRd32.exe
4392	AcroRd32.exe
4392	AcroRd32.exe
4392	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4392 wrote to memory of 1664	4392	AcroRd32.exe	95
PID 4392 wrote to memory of 1664	4392	AcroRd32.exe	95
PID 4392 wrote to memory of 1664	4392	AcroRd32.exe	95
PID 4392 wrote to memory of 4400	4392	AcroRd32.exe	98
PID 4392 wrote to memory of 4400	4392	AcroRd32.exe	98
PID 4392 wrote to memory of 4400	4392	AcroRd32.exe	98
PID 1664 wrote to memory of 4628	1664	RdrCEF.exe	99
PID 1664 wrote to memory of 4628	1664	RdrCEF.exe	99
PID 1664 wrote to memory of 4628	1664	RdrCEF.exe	99
PID 1664 wrote to memory of 4628	1664	RdrCEF.exe	99
PID 1664 wrote to memory of 4628	1664	RdrCEF.exe	99
PID 1664 wrote to memory of 4628	1664	RdrCEF.exe	99
PID 1664 wrote to memory of 4628	1664	RdrCEF.exe	99
PID 1664 wrote to memory of 4628	1664	RdrCEF.exe	99
PID 1664 wrote to memory of 4628	1664	RdrCEF.exe	99
PID 1664 wrote to memory of 4628	1664	RdrCEF.exe	99
PID 1664 wrote to memory of 4628	1664	RdrCEF.exe	99
PID 1664 wrote to memory of 4628	1664	RdrCEF.exe	99
PID 1664 wrote to memory of 4628	1664	RdrCEF.exe	99
PID 1664 wrote to memory of 4628	1664	RdrCEF.exe	99
PID 1664 wrote to memory of 4628	1664	RdrCEF.exe	99
PID 1664 wrote to memory of 4628	1664	RdrCEF.exe	99
PID 1664 wrote to memory of 4628	1664	RdrCEF.exe	99
PID 1664 wrote to memory of 4628	1664	RdrCEF.exe	99
PID 1664 wrote to memory of 4628	1664	RdrCEF.exe	99
PID 1664 wrote to memory of 4628	1664	RdrCEF.exe	99
PID 1664 wrote to memory of 4628	1664	RdrCEF.exe	99
PID 1664 wrote to memory of 4628	1664	RdrCEF.exe	99
PID 1664 wrote to memory of 4628	1664	RdrCEF.exe	99
PID 1664 wrote to memory of 4628	1664	RdrCEF.exe	99
PID 1664 wrote to memory of 4628	1664	RdrCEF.exe	99
PID 1664 wrote to memory of 4628	1664	RdrCEF.exe	99
PID 1664 wrote to memory of 4628	1664	RdrCEF.exe	99
PID 1664 wrote to memory of 4628	1664	RdrCEF.exe	99
PID 1664 wrote to memory of 4628	1664	RdrCEF.exe	99
PID 1664 wrote to memory of 4628	1664	RdrCEF.exe	99
PID 1664 wrote to memory of 4628	1664	RdrCEF.exe	99
PID 1664 wrote to memory of 4628	1664	RdrCEF.exe	99
PID 1664 wrote to memory of 4628	1664	RdrCEF.exe	99
PID 1664 wrote to memory of 4628	1664	RdrCEF.exe	99
PID 1664 wrote to memory of 4628	1664	RdrCEF.exe	99
PID 1664 wrote to memory of 4628	1664	RdrCEF.exe	99
PID 1664 wrote to memory of 4628	1664	RdrCEF.exe	99
PID 1664 wrote to memory of 4628	1664	RdrCEF.exe	99
PID 1664 wrote to memory of 4628	1664	RdrCEF.exe	99
PID 1664 wrote to memory of 4628	1664	RdrCEF.exe	99
PID 1664 wrote to memory of 4628	1664	RdrCEF.exe	99
PID 1664 wrote to memory of 2312	1664	RdrCEF.exe	100
PID 1664 wrote to memory of 2312	1664	RdrCEF.exe	100
PID 1664 wrote to memory of 2312	1664	RdrCEF.exe	100
PID 1664 wrote to memory of 2312	1664	RdrCEF.exe	100
PID 1664 wrote to memory of 2312	1664	RdrCEF.exe	100
PID 1664 wrote to memory of 2312	1664	RdrCEF.exe	100
PID 1664 wrote to memory of 2312	1664	RdrCEF.exe	100
PID 1664 wrote to memory of 2312	1664	RdrCEF.exe	100
PID 1664 wrote to memory of 2312	1664	RdrCEF.exe	100
PID 1664 wrote to memory of 2312	1664	RdrCEF.exe	100
PID 1664 wrote to memory of 2312	1664	RdrCEF.exe	100
PID 1664 wrote to memory of 2312	1664	RdrCEF.exe	100
PID 1664 wrote to memory of 2312	1664	RdrCEF.exe	100
PID 1664 wrote to memory of 2312	1664	RdrCEF.exe	100
PID 1664 wrote to memory of 2312	1664	RdrCEF.exe	100
PID 1664 wrote to memory of 2312	1664	RdrCEF.exe	100
PID 1664 wrote to memory of 2312	1664	RdrCEF.exe	100

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\132d3c24048c5e04d5613cbbec077a4a.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:4392
- 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:1664
- - 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=713C3C61FDDF4663BD3738D130D200AA --mojo-platform-channel-handle=1736 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4628
- - 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=230F73AFDC389D29FE871C2E32D3BBDE --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=230F73AFDC389D29FE871C2E32D3BBDE --renderer-client-id=2 --mojo-platform-channel-handle=1836 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:2312
- - 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=F180B4C024FB13081287964D8F9FF8C4 --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=F180B4C024FB13081287964D8F9FF8C4 --renderer-client-id=4 --mojo-platform-channel-handle=2168 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:2216
- - 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=CD59270D5A75A5356DF8565ED739EE0A --mojo-platform-channel-handle=2564 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3760
- - 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=FBD546034BE52EA806702A822EF5A188 --mojo-platform-channel-handle=2676 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3692
- - 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=0274DF3F99DD7013C7721665597F510F --mojo-platform-channel-handle=1744 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1080
- 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⤵
  PID:4400

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:4776

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 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 64KB
SHA256 4cd3bd27b398a4dc8158c877a7e145fa5705dd6efdf10e8a0703cccd7de30959
MD5 0316c6abf69046dd4f09154cfb46059e
SHA1 2839bba3e0e65afdf01199733781492eab17ed8d
SHA512 b02c951e7a58ce0670ed5ed9038a456b87b2be12e63b83b21806a4bd996e21975ec10b7aaa31c9e40a11c65541239d726a563c493512ccb52d166e5ccaa09c26
SSDEEP 384:yeTdThatELJ8SWvDTGJCesZsLglKhubvGZsLRZh+vS4:O+elZsLQCZsL3hUS4
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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