51fd4ce53fd4fad3c6c1c3d15eeaaf643ebceb8f60ba7ac8f990edac3d0b682b

Analysis

max time kernel
151s
max time network
168s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
26-12-2023 10:27

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General

Target

6742eccf621ce4dacd913a29e8431aa3.pdf
Size

62KB
MD5

6742eccf621ce4dacd913a29e8431aa3
SHA1

234fa2e1a7178f6f1fb138dc5ebd357ed343adc4
SHA256

51fd4ce53fd4fad3c6c1c3d15eeaaf643ebceb8f60ba7ac8f990edac3d0b682b
SHA512

1d500d2f3dacc4a83f245ab49bc0418dfa39ab24c40fce6d59100561140d9c0e79a56897c81d74c13c1bc7c6eafcf2d0702a6caac1f574d5c42669faaeb668a1
SSDEEP

1536:a62CYFOePAJb5So9BqLY+OislwcxyUlSI7E+O+Z9Usl2:kC6kJjnislwzExk+Z9UP

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
4280	AcroRd32.exe
4280	AcroRd32.exe
4280	AcroRd32.exe
4280	AcroRd32.exe
4280	AcroRd32.exe
4280	AcroRd32.exe
4280	AcroRd32.exe
4280	AcroRd32.exe
4280	AcroRd32.exe
4280	AcroRd32.exe
4280	AcroRd32.exe
4280	AcroRd32.exe
4280	AcroRd32.exe
4280	AcroRd32.exe
4280	AcroRd32.exe
4280	AcroRd32.exe
4280	AcroRd32.exe
4280	AcroRd32.exe
4280	AcroRd32.exe
4280	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4280	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
4280	AcroRd32.exe
4280	AcroRd32.exe
4280	AcroRd32.exe
4280	AcroRd32.exe
4280	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4280 wrote to memory of 3236	4280	AcroRd32.exe	95
PID 4280 wrote to memory of 3236	4280	AcroRd32.exe	95
PID 4280 wrote to memory of 3236	4280	AcroRd32.exe	95
PID 3236 wrote to memory of 784	3236	RdrCEF.exe	97
PID 3236 wrote to memory of 784	3236	RdrCEF.exe	97
PID 3236 wrote to memory of 784	3236	RdrCEF.exe	97
PID 3236 wrote to memory of 784	3236	RdrCEF.exe	97
PID 3236 wrote to memory of 784	3236	RdrCEF.exe	97
PID 3236 wrote to memory of 784	3236	RdrCEF.exe	97
PID 3236 wrote to memory of 784	3236	RdrCEF.exe	97
PID 3236 wrote to memory of 784	3236	RdrCEF.exe	97
PID 3236 wrote to memory of 784	3236	RdrCEF.exe	97
PID 3236 wrote to memory of 784	3236	RdrCEF.exe	97
PID 3236 wrote to memory of 784	3236	RdrCEF.exe	97
PID 3236 wrote to memory of 784	3236	RdrCEF.exe	97
PID 3236 wrote to memory of 784	3236	RdrCEF.exe	97
PID 3236 wrote to memory of 784	3236	RdrCEF.exe	97
PID 3236 wrote to memory of 784	3236	RdrCEF.exe	97
PID 3236 wrote to memory of 784	3236	RdrCEF.exe	97
PID 3236 wrote to memory of 784	3236	RdrCEF.exe	97
PID 3236 wrote to memory of 784	3236	RdrCEF.exe	97
PID 3236 wrote to memory of 784	3236	RdrCEF.exe	97
PID 3236 wrote to memory of 784	3236	RdrCEF.exe	97
PID 3236 wrote to memory of 784	3236	RdrCEF.exe	97
PID 3236 wrote to memory of 784	3236	RdrCEF.exe	97
PID 3236 wrote to memory of 784	3236	RdrCEF.exe	97
PID 3236 wrote to memory of 784	3236	RdrCEF.exe	97
PID 3236 wrote to memory of 784	3236	RdrCEF.exe	97
PID 3236 wrote to memory of 784	3236	RdrCEF.exe	97
PID 3236 wrote to memory of 784	3236	RdrCEF.exe	97
PID 3236 wrote to memory of 784	3236	RdrCEF.exe	97
PID 3236 wrote to memory of 784	3236	RdrCEF.exe	97
PID 3236 wrote to memory of 784	3236	RdrCEF.exe	97
PID 3236 wrote to memory of 784	3236	RdrCEF.exe	97
PID 3236 wrote to memory of 784	3236	RdrCEF.exe	97
PID 3236 wrote to memory of 784	3236	RdrCEF.exe	97
PID 3236 wrote to memory of 784	3236	RdrCEF.exe	97
PID 3236 wrote to memory of 784	3236	RdrCEF.exe	97
PID 3236 wrote to memory of 784	3236	RdrCEF.exe	97
PID 3236 wrote to memory of 784	3236	RdrCEF.exe	97
PID 3236 wrote to memory of 784	3236	RdrCEF.exe	97
PID 3236 wrote to memory of 784	3236	RdrCEF.exe	97
PID 3236 wrote to memory of 784	3236	RdrCEF.exe	97
PID 3236 wrote to memory of 784	3236	RdrCEF.exe	97
PID 3236 wrote to memory of 784	3236	RdrCEF.exe	97
PID 3236 wrote to memory of 784	3236	RdrCEF.exe	97
PID 3236 wrote to memory of 1324	3236	RdrCEF.exe	98
PID 3236 wrote to memory of 1324	3236	RdrCEF.exe	98
PID 3236 wrote to memory of 1324	3236	RdrCEF.exe	98
PID 3236 wrote to memory of 1324	3236	RdrCEF.exe	98
PID 3236 wrote to memory of 1324	3236	RdrCEF.exe	98
PID 3236 wrote to memory of 1324	3236	RdrCEF.exe	98
PID 3236 wrote to memory of 1324	3236	RdrCEF.exe	98
PID 3236 wrote to memory of 1324	3236	RdrCEF.exe	98
PID 3236 wrote to memory of 1324	3236	RdrCEF.exe	98
PID 3236 wrote to memory of 1324	3236	RdrCEF.exe	98
PID 3236 wrote to memory of 1324	3236	RdrCEF.exe	98
PID 3236 wrote to memory of 1324	3236	RdrCEF.exe	98
PID 3236 wrote to memory of 1324	3236	RdrCEF.exe	98
PID 3236 wrote to memory of 1324	3236	RdrCEF.exe	98
PID 3236 wrote to memory of 1324	3236	RdrCEF.exe	98
PID 3236 wrote to memory of 1324	3236	RdrCEF.exe	98
PID 3236 wrote to memory of 1324	3236	RdrCEF.exe	98
PID 3236 wrote to memory of 1324	3236	RdrCEF.exe	98

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\6742eccf621ce4dacd913a29e8431aa3.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:4280
- 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:3236
- - 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=FBE23D277A219E12076BA819EBA7E9F9 --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=FBE23D277A219E12076BA819EBA7E9F9 --renderer-client-id=2 --mojo-platform-channel-handle=1732 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:784
- - 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=AE8E8D228FE5EBA731365756DF8A9DF5 --mojo-platform-channel-handle=1740 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1324
- - 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=2837F505717BCE6314D73CCC9DB47A68 --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=2837F505717BCE6314D73CCC9DB47A68 --renderer-client-id=4 --mojo-platform-channel-handle=2308 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:2568
- - 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=089AF18908CF6639E93073F99CFCB3EB --mojo-platform-channel-handle=2580 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4408
- - 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=A2BD235C395685F6A07330705485D418 --mojo-platform-channel-handle=2028 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:5064
- - 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=73F8DC0CA5F20DF129BD08F9C74E3930 --mojo-platform-channel-handle=2656 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4812
- 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:3592

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:4416

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
60589a492d69997eaef2f3c4a7549bb3

SHA1
733e5c374b3fb8de33d71e235ee53ffdd6d5014f

SHA256
8bed387f0fdb03c033e7741876f05ed8a277703519084b2f5cc6ee511af7409a

SHA512
8a65a9b1537a2e119f5878a3617c6c48afccec388eb1119a902abb52bdba324cddf866a4a68f04a193749b91ca8ab0da1edc00e53ffb88303c0ddc62176fc0c0

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