b94aae0e43dac2fd0660c30157ee76067b062a4a4801390bf2d872bbeda710fb

Analysis

max time kernel
143s
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, 03:48

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General

Target
4a5c48ef91fbf492fb1e1299306490e7.pdf
Size 76KB
Sample240108-ec3f3abfb3
SHA256 b94aae0e43dac2fd0660c30157ee76067b062a4a4801390bf2d872bbeda710fb
MD5 4a5c48ef91fbf492fb1e1299306490e7
SHA1 e0cb3e1cd4da6ae972b8a56a576c0b525aae4df9
SHA512 71d036e0ccd873ec236fa62021685cef13da60d79e06f86a7c1d763725eea6a291a25c9d23a18b481c922193e0264b2a984eb0465c6fdd938b7d239a0f8f9f9b
SSDEEP 1536:LdCP90sDxS/tKljJu9aAx1fDW+a8daUmBDkdz9kg0rNIu//3cW6pOu26W69B29++:RWDxSlKhJcaAx1fDW+9r+D0h50hIunVr
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-1-5-21-635608581-3370340891-292606865-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
1244	AcroRd32.exe
1244	AcroRd32.exe
1244	AcroRd32.exe
1244	AcroRd32.exe
1244	AcroRd32.exe
1244	AcroRd32.exe
1244	AcroRd32.exe
1244	AcroRd32.exe
1244	AcroRd32.exe
1244	AcroRd32.exe
1244	AcroRd32.exe
1244	AcroRd32.exe
1244	AcroRd32.exe
1244	AcroRd32.exe
1244	AcroRd32.exe
1244	AcroRd32.exe
1244	AcroRd32.exe
1244	AcroRd32.exe
1244	AcroRd32.exe
1244	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1244	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
1244	AcroRd32.exe
1244	AcroRd32.exe
1244	AcroRd32.exe
1244	AcroRd32.exe
1244	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 1244 wrote to memory of 4708	1244	AcroRd32.exe	91
PID 1244 wrote to memory of 4708	1244	AcroRd32.exe	91
PID 1244 wrote to memory of 4708	1244	AcroRd32.exe	91
PID 4708 wrote to memory of 3536	4708	RdrCEF.exe	92
PID 4708 wrote to memory of 3536	4708	RdrCEF.exe	92
PID 4708 wrote to memory of 3536	4708	RdrCEF.exe	92
PID 4708 wrote to memory of 3536	4708	RdrCEF.exe	92
PID 4708 wrote to memory of 3536	4708	RdrCEF.exe	92
PID 4708 wrote to memory of 3536	4708	RdrCEF.exe	92
PID 4708 wrote to memory of 3536	4708	RdrCEF.exe	92
PID 4708 wrote to memory of 3536	4708	RdrCEF.exe	92
PID 4708 wrote to memory of 3536	4708	RdrCEF.exe	92
PID 4708 wrote to memory of 3536	4708	RdrCEF.exe	92
PID 4708 wrote to memory of 3536	4708	RdrCEF.exe	92
PID 4708 wrote to memory of 3536	4708	RdrCEF.exe	92
PID 4708 wrote to memory of 3536	4708	RdrCEF.exe	92
PID 4708 wrote to memory of 3536	4708	RdrCEF.exe	92
PID 4708 wrote to memory of 3536	4708	RdrCEF.exe	92
PID 4708 wrote to memory of 3536	4708	RdrCEF.exe	92
PID 4708 wrote to memory of 3536	4708	RdrCEF.exe	92
PID 4708 wrote to memory of 3536	4708	RdrCEF.exe	92
PID 4708 wrote to memory of 3536	4708	RdrCEF.exe	92
PID 4708 wrote to memory of 3536	4708	RdrCEF.exe	92
PID 4708 wrote to memory of 3536	4708	RdrCEF.exe	92
PID 4708 wrote to memory of 3536	4708	RdrCEF.exe	92
PID 4708 wrote to memory of 3536	4708	RdrCEF.exe	92
PID 4708 wrote to memory of 3536	4708	RdrCEF.exe	92
PID 4708 wrote to memory of 3536	4708	RdrCEF.exe	92
PID 4708 wrote to memory of 3536	4708	RdrCEF.exe	92
PID 4708 wrote to memory of 3536	4708	RdrCEF.exe	92
PID 4708 wrote to memory of 3536	4708	RdrCEF.exe	92
PID 4708 wrote to memory of 3536	4708	RdrCEF.exe	92
PID 4708 wrote to memory of 3536	4708	RdrCEF.exe	92
PID 4708 wrote to memory of 3536	4708	RdrCEF.exe	92
PID 4708 wrote to memory of 3536	4708	RdrCEF.exe	92
PID 4708 wrote to memory of 3536	4708	RdrCEF.exe	92
PID 4708 wrote to memory of 3536	4708	RdrCEF.exe	92
PID 4708 wrote to memory of 3536	4708	RdrCEF.exe	92
PID 4708 wrote to memory of 3536	4708	RdrCEF.exe	92
PID 4708 wrote to memory of 3536	4708	RdrCEF.exe	92
PID 4708 wrote to memory of 3536	4708	RdrCEF.exe	92
PID 4708 wrote to memory of 3536	4708	RdrCEF.exe	92
PID 4708 wrote to memory of 3536	4708	RdrCEF.exe	92
PID 4708 wrote to memory of 3536	4708	RdrCEF.exe	92
PID 4708 wrote to memory of 3396	4708	RdrCEF.exe	93
PID 4708 wrote to memory of 3396	4708	RdrCEF.exe	93
PID 4708 wrote to memory of 3396	4708	RdrCEF.exe	93
PID 4708 wrote to memory of 3396	4708	RdrCEF.exe	93
PID 4708 wrote to memory of 3396	4708	RdrCEF.exe	93
PID 4708 wrote to memory of 3396	4708	RdrCEF.exe	93
PID 4708 wrote to memory of 3396	4708	RdrCEF.exe	93
PID 4708 wrote to memory of 3396	4708	RdrCEF.exe	93
PID 4708 wrote to memory of 3396	4708	RdrCEF.exe	93
PID 4708 wrote to memory of 3396	4708	RdrCEF.exe	93
PID 4708 wrote to memory of 3396	4708	RdrCEF.exe	93
PID 4708 wrote to memory of 3396	4708	RdrCEF.exe	93
PID 4708 wrote to memory of 3396	4708	RdrCEF.exe	93
PID 4708 wrote to memory of 3396	4708	RdrCEF.exe	93
PID 4708 wrote to memory of 3396	4708	RdrCEF.exe	93
PID 4708 wrote to memory of 3396	4708	RdrCEF.exe	93
PID 4708 wrote to memory of 3396	4708	RdrCEF.exe	93
PID 4708 wrote to memory of 3396	4708	RdrCEF.exe	93
PID 4708 wrote to memory of 3396	4708	RdrCEF.exe	93
PID 4708 wrote to memory of 3396	4708	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\4a5c48ef91fbf492fb1e1299306490e7.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:1244
- 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:4708
- - 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=2BE654EDEB641AEAA65CC13A2FF7A13C --mojo-platform-channel-handle=1732 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3536
- - 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=DAC2252124C80EB4C9FFD02E9E11916F --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=DAC2252124C80EB4C9FFD02E9E11916F --renderer-client-id=2 --mojo-platform-channel-handle=1792 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:3396
- - 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=CD92D92113EC110EB21EF3A48650E5DF --mojo-platform-channel-handle=2176 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1916
- - 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=1B8332BD6E8842C4BC2D0F4DFD07A49B --mojo-platform-channel-handle=2320 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1676
- - 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=28D0B5BCFB0AD546579B33311137058A --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=28D0B5BCFB0AD546579B33311137058A --renderer-client-id=6 --mojo-platform-channel-handle=2188 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:2376
- - 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=386F8536108DDE24ABA33A9DAC3A10B8 --mojo-platform-channel-handle=2660 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4436

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 22a161477840d970f754a441797d416277c86e0687c752dc16924d1877acae9e
MD5 fd49a57b7cc8aca5149e98eec24222b2
SHA1 b9b0a355d52a0d3f42ad5bd55a3ac735c479356d
SHA512 71c77237c87d1fb998c4cfb1192062bfdd152d471ed88c72f162dfe7f96c6166d461bc37084426c4e3c1f871cbd132fdf75ba186ae36d5f2e754567e5c7883cd
SSDEEP 384:yeBdThatELJ8SWvDTGJCesZsLglKhubvGZsLRZh+vS4:w+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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