eb28f3b06eb6fa39fe8d0fb26c8dfa56223bc9a903318e940d8db8206d7ffdb3

Analysis

max time kernel
1791s
max time network
1174s
platform
windows11-21h2_x64
resource
win11-20240419-en
resource tags

arch:x64arch:x86image:win11-20240419-enlocale:en-usos:windows11-21h2-x64system
submitted
01/07/2024, 20:27

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General

Target

FACT20039409002.pdf
Size

25KB
MD5

551c406e51047d4a67e0e164eb64c150
SHA1

3b294a4560fdad334379b270089d5d3bbd28a96f
SHA256

eb28f3b06eb6fa39fe8d0fb26c8dfa56223bc9a903318e940d8db8206d7ffdb3
SHA512

73221eefc68a2ea97f5eb84c3a9d83136f438257d4b02664e1d7972d82d1248bfac558db5f6f37579378995e9c24a0730698dae4c0ce95112602e420a1708fc3
SSDEEP

768:ZssccKIEsROehZechPcgqwBoaOGQv036WZ333f:ukd/hZHhPcPgN6g3/

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-1-5-21-1474490143-3221292397-4168103503-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
3380	AcroRd32.exe
3380	AcroRd32.exe
3380	AcroRd32.exe
3380	AcroRd32.exe
3380	AcroRd32.exe
3380	AcroRd32.exe
3380	AcroRd32.exe
3380	AcroRd32.exe
3380	AcroRd32.exe
3380	AcroRd32.exe
3380	AcroRd32.exe
3380	AcroRd32.exe
3380	AcroRd32.exe
3380	AcroRd32.exe
3380	AcroRd32.exe
3380	AcroRd32.exe
3380	AcroRd32.exe
3380	AcroRd32.exe
3380	AcroRd32.exe
3380	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3380	AcroRd32.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
3380	AcroRd32.exe
3380	AcroRd32.exe
3380	AcroRd32.exe
3380	AcroRd32.exe
3380	AcroRd32.exe
3380	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 3380 wrote to memory of 1864	3380	AcroRd32.exe	76
PID 3380 wrote to memory of 1864	3380	AcroRd32.exe	76
PID 3380 wrote to memory of 1864	3380	AcroRd32.exe	76
PID 1864 wrote to memory of 2460	1864	RdrCEF.exe	77
PID 1864 wrote to memory of 2460	1864	RdrCEF.exe	77
PID 1864 wrote to memory of 2460	1864	RdrCEF.exe	77
PID 1864 wrote to memory of 2460	1864	RdrCEF.exe	77
PID 1864 wrote to memory of 2460	1864	RdrCEF.exe	77
PID 1864 wrote to memory of 2460	1864	RdrCEF.exe	77
PID 1864 wrote to memory of 2460	1864	RdrCEF.exe	77
PID 1864 wrote to memory of 2460	1864	RdrCEF.exe	77
PID 1864 wrote to memory of 2460	1864	RdrCEF.exe	77
PID 1864 wrote to memory of 2460	1864	RdrCEF.exe	77
PID 1864 wrote to memory of 2460	1864	RdrCEF.exe	77
PID 1864 wrote to memory of 2460	1864	RdrCEF.exe	77
PID 1864 wrote to memory of 2460	1864	RdrCEF.exe	77
PID 1864 wrote to memory of 2460	1864	RdrCEF.exe	77
PID 1864 wrote to memory of 2460	1864	RdrCEF.exe	77
PID 1864 wrote to memory of 2460	1864	RdrCEF.exe	77
PID 1864 wrote to memory of 2460	1864	RdrCEF.exe	77
PID 1864 wrote to memory of 2460	1864	RdrCEF.exe	77
PID 1864 wrote to memory of 2460	1864	RdrCEF.exe	77
PID 1864 wrote to memory of 2460	1864	RdrCEF.exe	77
PID 1864 wrote to memory of 2460	1864	RdrCEF.exe	77
PID 1864 wrote to memory of 2460	1864	RdrCEF.exe	77
PID 1864 wrote to memory of 2460	1864	RdrCEF.exe	77
PID 1864 wrote to memory of 2460	1864	RdrCEF.exe	77
PID 1864 wrote to memory of 2460	1864	RdrCEF.exe	77
PID 1864 wrote to memory of 2460	1864	RdrCEF.exe	77
PID 1864 wrote to memory of 2460	1864	RdrCEF.exe	77
PID 1864 wrote to memory of 2460	1864	RdrCEF.exe	77
PID 1864 wrote to memory of 2460	1864	RdrCEF.exe	77
PID 1864 wrote to memory of 2460	1864	RdrCEF.exe	77
PID 1864 wrote to memory of 2460	1864	RdrCEF.exe	77
PID 1864 wrote to memory of 2460	1864	RdrCEF.exe	77
PID 1864 wrote to memory of 2460	1864	RdrCEF.exe	77
PID 1864 wrote to memory of 2460	1864	RdrCEF.exe	77
PID 1864 wrote to memory of 2460	1864	RdrCEF.exe	77
PID 1864 wrote to memory of 2460	1864	RdrCEF.exe	77
PID 1864 wrote to memory of 2460	1864	RdrCEF.exe	77
PID 1864 wrote to memory of 2460	1864	RdrCEF.exe	77
PID 1864 wrote to memory of 2460	1864	RdrCEF.exe	77
PID 1864 wrote to memory of 2460	1864	RdrCEF.exe	77
PID 1864 wrote to memory of 2460	1864	RdrCEF.exe	77
PID 1864 wrote to memory of 1536	1864	RdrCEF.exe	78
PID 1864 wrote to memory of 1536	1864	RdrCEF.exe	78
PID 1864 wrote to memory of 1536	1864	RdrCEF.exe	78
PID 1864 wrote to memory of 1536	1864	RdrCEF.exe	78
PID 1864 wrote to memory of 1536	1864	RdrCEF.exe	78
PID 1864 wrote to memory of 1536	1864	RdrCEF.exe	78
PID 1864 wrote to memory of 1536	1864	RdrCEF.exe	78
PID 1864 wrote to memory of 1536	1864	RdrCEF.exe	78
PID 1864 wrote to memory of 1536	1864	RdrCEF.exe	78
PID 1864 wrote to memory of 1536	1864	RdrCEF.exe	78
PID 1864 wrote to memory of 1536	1864	RdrCEF.exe	78
PID 1864 wrote to memory of 1536	1864	RdrCEF.exe	78
PID 1864 wrote to memory of 1536	1864	RdrCEF.exe	78
PID 1864 wrote to memory of 1536	1864	RdrCEF.exe	78
PID 1864 wrote to memory of 1536	1864	RdrCEF.exe	78
PID 1864 wrote to memory of 1536	1864	RdrCEF.exe	78
PID 1864 wrote to memory of 1536	1864	RdrCEF.exe	78
PID 1864 wrote to memory of 1536	1864	RdrCEF.exe	78
PID 1864 wrote to memory of 1536	1864	RdrCEF.exe	78
PID 1864 wrote to memory of 1536	1864	RdrCEF.exe	78

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\FACT20039409002.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:3380
- 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:1864
- - 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=2B90016A3FD9B6E9BF52BF5455DFD376 --mojo-platform-channel-handle=1740 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2460
- - 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=C6E66EDED737C6BA23E2D805418565CA --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=C6E66EDED737C6BA23E2D805418565CA --renderer-client-id=2 --mojo-platform-channel-handle=1748 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:1536
- - 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=FA2996888DAB0F91A840B06BFE975BC8 --mojo-platform-channel-handle=1844 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4264
- - 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=BB3B359785ECCFD72E00F2BF5372A919 --mojo-platform-channel-handle=1928 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3004
- - 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=CA25C100052A21B1E946C10EE6F91C5C --mojo-platform-channel-handle=2304 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4924
- - 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=5D7C4162F30C7BF37F76DCD1386F356F --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=5D7C4162F30C7BF37F76DCD1386F356F --renderer-client-id=8 --mojo-platform-channel-handle=1220 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:1964

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:1844

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\ReaderMessages

Filesize
64KB

MD5
9379c0e9e094c965a52d4fd31b766135

SHA1
26a027e1efec773f545b34de880590cc00eb6a1a

SHA256
045a4ea71fcb65886c7c4460956c073afb45dea29c2020cb6f5f8f3fba99539b

SHA512
e84993a036129cdbbcb098b86249f27d9d9796851c9e0a7e42a9dd49f93de356958db8741d00b70ab96780909e6fe92b4c02489075464dfe36d3e3a97f9b129e

Download Submit
C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\ReaderMessages

Filesize
36KB

MD5
b30d3becc8731792523d599d949e63f5

SHA1
19350257e42d7aee17fb3bf139a9d3adb330fad4

SHA256
b1b77e96279ead2b460de3de70e2ea4f5ad1b853598a4e27a5caf3f1a32cc4f3

SHA512
523f54895fb07f62b9a5f72c8b62e83d4d9506bda57b183818615f6eb7286e3b9c5a50409bc5c5164867c3ccdeae88aa395ecca6bc7e36d991552f857510792e

Download Submit
C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\ReaderMessages

Filesize
56KB

MD5
752a1f26b18748311b691c7d8fc20633

SHA1
c1f8e83eebc1cc1e9b88c773338eb09ff82ab862

SHA256
111dac2948e4cecb10b0d2e10d8afaa663d78d643826b592d6414a1fd77cc131

SHA512
a2f5f262faf2c3e9756da94b2c47787ce3a9391b5bd53581578aa9a764449e114836704d6dec4aadc097fed4c818831baa11affa1eb25be2bfad9349bb090fe5

Download Submit