ff5d98e5b9ed9c4479fff876728067b6c2692fbd0dd417b972469d4eb2848e93

Analysis

max time kernel
141s
max time network
139s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
17/04/2024, 11:20

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General

Target
Unit 2 My Piano Student Guide_ Part 1.pdf
Size 1.9MB
Sample240417-nfph2sdb28
SHA256 ff5d98e5b9ed9c4479fff876728067b6c2692fbd0dd417b972469d4eb2848e93
MD5 3575953e80c731959a7ed2e2bc8c0186
SHA1 d17ee24f69046e127271ccd44f27317c34d94b86
SHA512 14b50a6d41e34b88ead06c4669f3bc4024456b0c7eb805a8515f6229f0f163273cbd35c3757d5472b03cb8b66ee4d242ba8bd9576c90f62d8e0a32681dbaff6d
SSDEEP 24576:CX3Tjds3uTfUcLPXADAcJZNRh6MMMMMMJg7f+NH4NItG1qqXM8xl1m1i1FodQE+h:Wja1cgZJvRWgjM1i1kQE+sM
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-1-5-21-259785868-298165991-4178590326-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
3008	AcroRd32.exe
3008	AcroRd32.exe
3008	AcroRd32.exe
3008	AcroRd32.exe
3008	AcroRd32.exe
3008	AcroRd32.exe
3008	AcroRd32.exe
3008	AcroRd32.exe
3008	AcroRd32.exe
3008	AcroRd32.exe
3008	AcroRd32.exe
3008	AcroRd32.exe
3008	AcroRd32.exe
3008	AcroRd32.exe
3008	AcroRd32.exe
3008	AcroRd32.exe
3008	AcroRd32.exe
3008	AcroRd32.exe
3008	AcroRd32.exe
3008	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3008	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
3008	AcroRd32.exe
3008	AcroRd32.exe
3008	AcroRd32.exe
3008	AcroRd32.exe
3008	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 3008 wrote to memory of 2808	3008	AcroRd32.exe	91
PID 3008 wrote to memory of 2808	3008	AcroRd32.exe	91
PID 3008 wrote to memory of 2808	3008	AcroRd32.exe	91
PID 2808 wrote to memory of 4016	2808	RdrCEF.exe	92
PID 2808 wrote to memory of 4016	2808	RdrCEF.exe	92
PID 2808 wrote to memory of 4016	2808	RdrCEF.exe	92
PID 2808 wrote to memory of 4016	2808	RdrCEF.exe	92
PID 2808 wrote to memory of 4016	2808	RdrCEF.exe	92
PID 2808 wrote to memory of 4016	2808	RdrCEF.exe	92
PID 2808 wrote to memory of 4016	2808	RdrCEF.exe	92
PID 2808 wrote to memory of 4016	2808	RdrCEF.exe	92
PID 2808 wrote to memory of 4016	2808	RdrCEF.exe	92
PID 2808 wrote to memory of 4016	2808	RdrCEF.exe	92
PID 2808 wrote to memory of 4016	2808	RdrCEF.exe	92
PID 2808 wrote to memory of 4016	2808	RdrCEF.exe	92
PID 2808 wrote to memory of 4016	2808	RdrCEF.exe	92
PID 2808 wrote to memory of 4016	2808	RdrCEF.exe	92
PID 2808 wrote to memory of 4016	2808	RdrCEF.exe	92
PID 2808 wrote to memory of 4016	2808	RdrCEF.exe	92
PID 2808 wrote to memory of 4016	2808	RdrCEF.exe	92
PID 2808 wrote to memory of 4016	2808	RdrCEF.exe	92
PID 2808 wrote to memory of 4016	2808	RdrCEF.exe	92
PID 2808 wrote to memory of 4016	2808	RdrCEF.exe	92
PID 2808 wrote to memory of 4016	2808	RdrCEF.exe	92
PID 2808 wrote to memory of 4016	2808	RdrCEF.exe	92
PID 2808 wrote to memory of 4016	2808	RdrCEF.exe	92
PID 2808 wrote to memory of 4016	2808	RdrCEF.exe	92
PID 2808 wrote to memory of 4016	2808	RdrCEF.exe	92
PID 2808 wrote to memory of 4016	2808	RdrCEF.exe	92
PID 2808 wrote to memory of 4016	2808	RdrCEF.exe	92
PID 2808 wrote to memory of 4016	2808	RdrCEF.exe	92
PID 2808 wrote to memory of 4016	2808	RdrCEF.exe	92
PID 2808 wrote to memory of 4016	2808	RdrCEF.exe	92
PID 2808 wrote to memory of 4016	2808	RdrCEF.exe	92
PID 2808 wrote to memory of 4016	2808	RdrCEF.exe	92
PID 2808 wrote to memory of 4016	2808	RdrCEF.exe	92
PID 2808 wrote to memory of 4016	2808	RdrCEF.exe	92
PID 2808 wrote to memory of 4016	2808	RdrCEF.exe	92
PID 2808 wrote to memory of 4016	2808	RdrCEF.exe	92
PID 2808 wrote to memory of 4016	2808	RdrCEF.exe	92
PID 2808 wrote to memory of 4016	2808	RdrCEF.exe	92
PID 2808 wrote to memory of 4016	2808	RdrCEF.exe	92
PID 2808 wrote to memory of 4016	2808	RdrCEF.exe	92
PID 2808 wrote to memory of 4016	2808	RdrCEF.exe	92
PID 2808 wrote to memory of 4316	2808	RdrCEF.exe	93
PID 2808 wrote to memory of 4316	2808	RdrCEF.exe	93
PID 2808 wrote to memory of 4316	2808	RdrCEF.exe	93
PID 2808 wrote to memory of 4316	2808	RdrCEF.exe	93
PID 2808 wrote to memory of 4316	2808	RdrCEF.exe	93
PID 2808 wrote to memory of 4316	2808	RdrCEF.exe	93
PID 2808 wrote to memory of 4316	2808	RdrCEF.exe	93
PID 2808 wrote to memory of 4316	2808	RdrCEF.exe	93
PID 2808 wrote to memory of 4316	2808	RdrCEF.exe	93
PID 2808 wrote to memory of 4316	2808	RdrCEF.exe	93
PID 2808 wrote to memory of 4316	2808	RdrCEF.exe	93
PID 2808 wrote to memory of 4316	2808	RdrCEF.exe	93
PID 2808 wrote to memory of 4316	2808	RdrCEF.exe	93
PID 2808 wrote to memory of 4316	2808	RdrCEF.exe	93
PID 2808 wrote to memory of 4316	2808	RdrCEF.exe	93
PID 2808 wrote to memory of 4316	2808	RdrCEF.exe	93
PID 2808 wrote to memory of 4316	2808	RdrCEF.exe	93
PID 2808 wrote to memory of 4316	2808	RdrCEF.exe	93
PID 2808 wrote to memory of 4316	2808	RdrCEF.exe	93
PID 2808 wrote to memory of 4316	2808	RdrCEF.exe	93

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\Unit 2 My Piano Student Guide_ Part 1.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:3008
- 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:2808
- - 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=363BC6D3D5958F337213E828798DE425 --mojo-platform-channel-handle=1736 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4016
- - 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=CBC66F02EEDD1D3747E33DE50EA64145 --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=CBC66F02EEDD1D3747E33DE50EA64145 --renderer-client-id=2 --mojo-platform-channel-handle=1752 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4316
- - 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=85B69285FE147B0B551533301FC444D0 --mojo-platform-channel-handle=2296 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4636
- - 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=56381CB8F865B15D6B9F6DEC95FF4F00 --mojo-platform-channel-handle=1948 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3208
- - 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=AFD18DA9E05F62BDCAC8646D03DCBE70 --mojo-platform-channel-handle=2536 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2032
- - 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=BA4A1FA2DA1F2FBDC5328450134A99A6 --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=BA4A1FA2DA1F2FBDC5328450134A99A6 --renderer-client-id=7 --mojo-platform-channel-handle=2460 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4680

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:2476

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 135a65424f6d3cf0811c9034e2728d546e8520190d2c3bae3667972ac06f281b
MD5 a9b2f7f25f915cb2ca54abe3b0bd3c59
SHA1 cc00c633ba9a7f9f442e2aebc60fc42286aa07c9
SHA512 2acfc9c122df303ee45ab3915276a6db4853aaa9de14521a6c814031dd2cf6cf5333dbe64e197fd9f3e0b39844dff653c8a621c80ac9da2eee292c31c6ad6aa2
SSDEEP 384:yeqdThatELJ8SWvDTGJCesZsLglKhubvGZsLRZh+vS4:x+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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