739f7703946fc41460edbe74e5c2c085e545ad89377bba44b41bbf4ad433168b

Analysis

max time kernel
143s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
19-12-2023 12:43

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General

Target

26e09ced78503e7e7dd33c32230e27b7.pdf
Size

79KB
MD5

26e09ced78503e7e7dd33c32230e27b7
SHA1

a150da5076a652f5538478b0a8288ef75777d959
SHA256

739f7703946fc41460edbe74e5c2c085e545ad89377bba44b41bbf4ad433168b
SHA512

565525cd6402421c087d267becb18e9c9dd460f0b1a2a9832e83a86a5df9f076bbb1b96c0aa497b573c56f09417645c33d28b65dc2981d0dd8b7d1c31ab5c6c8
SSDEEP

1536:GJSUByr3r2k5XdH4YQJ9R/DwVBw8B3NfSk2OF+djYE/HUmpx:A4rqk5X14tt6RNf52JjYYHbr

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-1-5-21-2398549320-3657759451-817663969-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
1516	AcroRd32.exe
1516	AcroRd32.exe
1516	AcroRd32.exe
1516	AcroRd32.exe
1516	AcroRd32.exe
1516	AcroRd32.exe
1516	AcroRd32.exe
1516	AcroRd32.exe
1516	AcroRd32.exe
1516	AcroRd32.exe
1516	AcroRd32.exe
1516	AcroRd32.exe
1516	AcroRd32.exe
1516	AcroRd32.exe
1516	AcroRd32.exe
1516	AcroRd32.exe
1516	AcroRd32.exe
1516	AcroRd32.exe
1516	AcroRd32.exe
1516	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1516	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
1516	AcroRd32.exe
1516	AcroRd32.exe
1516	AcroRd32.exe
1516	AcroRd32.exe
1516	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 1516 wrote to memory of 1172	1516	AcroRd32.exe	92
PID 1516 wrote to memory of 1172	1516	AcroRd32.exe	92
PID 1516 wrote to memory of 1172	1516	AcroRd32.exe	92
PID 1172 wrote to memory of 5084	1172	RdrCEF.exe	93
PID 1172 wrote to memory of 5084	1172	RdrCEF.exe	93
PID 1172 wrote to memory of 5084	1172	RdrCEF.exe	93
PID 1172 wrote to memory of 5084	1172	RdrCEF.exe	93
PID 1172 wrote to memory of 5084	1172	RdrCEF.exe	93
PID 1172 wrote to memory of 5084	1172	RdrCEF.exe	93
PID 1172 wrote to memory of 5084	1172	RdrCEF.exe	93
PID 1172 wrote to memory of 5084	1172	RdrCEF.exe	93
PID 1172 wrote to memory of 5084	1172	RdrCEF.exe	93
PID 1172 wrote to memory of 5084	1172	RdrCEF.exe	93
PID 1172 wrote to memory of 5084	1172	RdrCEF.exe	93
PID 1172 wrote to memory of 5084	1172	RdrCEF.exe	93
PID 1172 wrote to memory of 5084	1172	RdrCEF.exe	93
PID 1172 wrote to memory of 5084	1172	RdrCEF.exe	93
PID 1172 wrote to memory of 5084	1172	RdrCEF.exe	93
PID 1172 wrote to memory of 5084	1172	RdrCEF.exe	93
PID 1172 wrote to memory of 5084	1172	RdrCEF.exe	93
PID 1172 wrote to memory of 5084	1172	RdrCEF.exe	93
PID 1172 wrote to memory of 5084	1172	RdrCEF.exe	93
PID 1172 wrote to memory of 5084	1172	RdrCEF.exe	93
PID 1172 wrote to memory of 5084	1172	RdrCEF.exe	93
PID 1172 wrote to memory of 5084	1172	RdrCEF.exe	93
PID 1172 wrote to memory of 5084	1172	RdrCEF.exe	93
PID 1172 wrote to memory of 5084	1172	RdrCEF.exe	93
PID 1172 wrote to memory of 5084	1172	RdrCEF.exe	93
PID 1172 wrote to memory of 5084	1172	RdrCEF.exe	93
PID 1172 wrote to memory of 5084	1172	RdrCEF.exe	93
PID 1172 wrote to memory of 5084	1172	RdrCEF.exe	93
PID 1172 wrote to memory of 5084	1172	RdrCEF.exe	93
PID 1172 wrote to memory of 5084	1172	RdrCEF.exe	93
PID 1172 wrote to memory of 5084	1172	RdrCEF.exe	93
PID 1172 wrote to memory of 5084	1172	RdrCEF.exe	93
PID 1172 wrote to memory of 5084	1172	RdrCEF.exe	93
PID 1172 wrote to memory of 5084	1172	RdrCEF.exe	93
PID 1172 wrote to memory of 5084	1172	RdrCEF.exe	93
PID 1172 wrote to memory of 5084	1172	RdrCEF.exe	93
PID 1172 wrote to memory of 5084	1172	RdrCEF.exe	93
PID 1172 wrote to memory of 5084	1172	RdrCEF.exe	93
PID 1172 wrote to memory of 5084	1172	RdrCEF.exe	93
PID 1172 wrote to memory of 5084	1172	RdrCEF.exe	93
PID 1172 wrote to memory of 5084	1172	RdrCEF.exe	93
PID 1172 wrote to memory of 636	1172	RdrCEF.exe	94
PID 1172 wrote to memory of 636	1172	RdrCEF.exe	94
PID 1172 wrote to memory of 636	1172	RdrCEF.exe	94
PID 1172 wrote to memory of 636	1172	RdrCEF.exe	94
PID 1172 wrote to memory of 636	1172	RdrCEF.exe	94
PID 1172 wrote to memory of 636	1172	RdrCEF.exe	94
PID 1172 wrote to memory of 636	1172	RdrCEF.exe	94
PID 1172 wrote to memory of 636	1172	RdrCEF.exe	94
PID 1172 wrote to memory of 636	1172	RdrCEF.exe	94
PID 1172 wrote to memory of 636	1172	RdrCEF.exe	94
PID 1172 wrote to memory of 636	1172	RdrCEF.exe	94
PID 1172 wrote to memory of 636	1172	RdrCEF.exe	94
PID 1172 wrote to memory of 636	1172	RdrCEF.exe	94
PID 1172 wrote to memory of 636	1172	RdrCEF.exe	94
PID 1172 wrote to memory of 636	1172	RdrCEF.exe	94
PID 1172 wrote to memory of 636	1172	RdrCEF.exe	94
PID 1172 wrote to memory of 636	1172	RdrCEF.exe	94
PID 1172 wrote to memory of 636	1172	RdrCEF.exe	94
PID 1172 wrote to memory of 636	1172	RdrCEF.exe	94
PID 1172 wrote to memory of 636	1172	RdrCEF.exe	94

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\26e09ced78503e7e7dd33c32230e27b7.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:1516
- 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:1172
- - 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=E8FFFDF46A8A6CE70E0A13694318BA40 --mojo-platform-channel-handle=1752 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:5084
- - 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=2CC181176A3400031DC4B8CB38502487 --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=2CC181176A3400031DC4B8CB38502487 --renderer-client-id=2 --mojo-platform-channel-handle=1768 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:636
- - 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=B7B302F734CA59A98092A97890AF9333 --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=B7B302F734CA59A98092A97890AF9333 --renderer-client-id=4 --mojo-platform-channel-handle=2280 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:876
- - 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=02562030964FE459F9A97FCCF5A41D26 --mojo-platform-channel-handle=2416 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2728
- - 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=677D15501EDDA79906DA835046B372AB --mojo-platform-channel-handle=2436 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1736
- - 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=4E18D870EEAA4302BF457FC049BDD2B7 --mojo-platform-channel-handle=1944 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4692

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:4028

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
3b8e47ea945d505707732e1ff547a22c

SHA1
a4bcfb63f4f0f3b7a6cde40b76f801d6a952b258

SHA256
91b78276997cecb350d0a419beff8f37c2adc9a1a0d0adfe28981003e11453af

SHA512
590d69d0d801c033719c65dfa4fe02611160352ebb35260fd709ec9e3f646f7c8d7a981e7de846f735e29fc28114c60b22ffddb0e21d3d0346a8ac68f4ef10d0

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