3f71728d6d374d373cbd0f0393529492f98514b0e75c9a93cf4b04df19a92735

Analysis

max time kernel
141s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
23-03-2023 13:59

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General

Target

327711497.pdf
Size

237KB
MD5

eb232bf27f5babc2c7ba915764ff4218
SHA1

5f114e26bc5277fb39ce85ae039ab466857f68d0
SHA256

3f71728d6d374d373cbd0f0393529492f98514b0e75c9a93cf4b04df19a92735
SHA512

4b614a6a4b67470c376b082846e24eb5fe2883085f2703249cf3c060a0574366632b1557234cbe485513661419256a370026d81f5c06682ae22e08b08a9a37d9
SSDEEP

6144:3om457kqJX9OxH8z3x2K0hyGuvUEv4M/EABDGMKNvQSwx:1sRSidgjO/ESDGNvTo

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-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
3532	AcroRd32.exe
3532	AcroRd32.exe
3532	AcroRd32.exe
3532	AcroRd32.exe
3532	AcroRd32.exe
3532	AcroRd32.exe
3532	AcroRd32.exe
3532	AcroRd32.exe
3532	AcroRd32.exe
3532	AcroRd32.exe
3532	AcroRd32.exe
3532	AcroRd32.exe
3532	AcroRd32.exe
3532	AcroRd32.exe
3532	AcroRd32.exe
3532	AcroRd32.exe
3532	AcroRd32.exe
3532	AcroRd32.exe
3532	AcroRd32.exe
3532	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3532	AcroRd32.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
3532	AcroRd32.exe
3532	AcroRd32.exe
3532	AcroRd32.exe
3532	AcroRd32.exe
3532	AcroRd32.exe
3532	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 3532 wrote to memory of 3668	3532	AcroRd32.exe	86
PID 3532 wrote to memory of 3668	3532	AcroRd32.exe	86
PID 3532 wrote to memory of 3668	3532	AcroRd32.exe	86
PID 3668 wrote to memory of 4596	3668	RdrCEF.exe	87
PID 3668 wrote to memory of 4596	3668	RdrCEF.exe	87
PID 3668 wrote to memory of 4596	3668	RdrCEF.exe	87
PID 3668 wrote to memory of 4596	3668	RdrCEF.exe	87
PID 3668 wrote to memory of 4596	3668	RdrCEF.exe	87
PID 3668 wrote to memory of 4596	3668	RdrCEF.exe	87
PID 3668 wrote to memory of 4596	3668	RdrCEF.exe	87
PID 3668 wrote to memory of 4596	3668	RdrCEF.exe	87
PID 3668 wrote to memory of 4596	3668	RdrCEF.exe	87
PID 3668 wrote to memory of 4596	3668	RdrCEF.exe	87
PID 3668 wrote to memory of 4596	3668	RdrCEF.exe	87
PID 3668 wrote to memory of 4596	3668	RdrCEF.exe	87
PID 3668 wrote to memory of 4596	3668	RdrCEF.exe	87
PID 3668 wrote to memory of 4596	3668	RdrCEF.exe	87
PID 3668 wrote to memory of 4596	3668	RdrCEF.exe	87
PID 3668 wrote to memory of 4596	3668	RdrCEF.exe	87
PID 3668 wrote to memory of 4596	3668	RdrCEF.exe	87
PID 3668 wrote to memory of 4596	3668	RdrCEF.exe	87
PID 3668 wrote to memory of 4596	3668	RdrCEF.exe	87
PID 3668 wrote to memory of 4596	3668	RdrCEF.exe	87
PID 3668 wrote to memory of 4596	3668	RdrCEF.exe	87
PID 3668 wrote to memory of 4596	3668	RdrCEF.exe	87
PID 3668 wrote to memory of 4596	3668	RdrCEF.exe	87
PID 3668 wrote to memory of 4596	3668	RdrCEF.exe	87
PID 3668 wrote to memory of 4596	3668	RdrCEF.exe	87
PID 3668 wrote to memory of 4596	3668	RdrCEF.exe	87
PID 3668 wrote to memory of 4596	3668	RdrCEF.exe	87
PID 3668 wrote to memory of 4596	3668	RdrCEF.exe	87
PID 3668 wrote to memory of 4596	3668	RdrCEF.exe	87
PID 3668 wrote to memory of 4596	3668	RdrCEF.exe	87
PID 3668 wrote to memory of 4596	3668	RdrCEF.exe	87
PID 3668 wrote to memory of 4596	3668	RdrCEF.exe	87
PID 3668 wrote to memory of 4596	3668	RdrCEF.exe	87
PID 3668 wrote to memory of 4596	3668	RdrCEF.exe	87
PID 3668 wrote to memory of 4596	3668	RdrCEF.exe	87
PID 3668 wrote to memory of 4596	3668	RdrCEF.exe	87
PID 3668 wrote to memory of 4596	3668	RdrCEF.exe	87
PID 3668 wrote to memory of 4596	3668	RdrCEF.exe	87
PID 3668 wrote to memory of 4596	3668	RdrCEF.exe	87
PID 3668 wrote to memory of 4596	3668	RdrCEF.exe	87
PID 3668 wrote to memory of 4596	3668	RdrCEF.exe	87
PID 3668 wrote to memory of 100	3668	RdrCEF.exe	88
PID 3668 wrote to memory of 100	3668	RdrCEF.exe	88
PID 3668 wrote to memory of 100	3668	RdrCEF.exe	88
PID 3668 wrote to memory of 100	3668	RdrCEF.exe	88
PID 3668 wrote to memory of 100	3668	RdrCEF.exe	88
PID 3668 wrote to memory of 100	3668	RdrCEF.exe	88
PID 3668 wrote to memory of 100	3668	RdrCEF.exe	88
PID 3668 wrote to memory of 100	3668	RdrCEF.exe	88
PID 3668 wrote to memory of 100	3668	RdrCEF.exe	88
PID 3668 wrote to memory of 100	3668	RdrCEF.exe	88
PID 3668 wrote to memory of 100	3668	RdrCEF.exe	88
PID 3668 wrote to memory of 100	3668	RdrCEF.exe	88
PID 3668 wrote to memory of 100	3668	RdrCEF.exe	88
PID 3668 wrote to memory of 100	3668	RdrCEF.exe	88
PID 3668 wrote to memory of 100	3668	RdrCEF.exe	88
PID 3668 wrote to memory of 100	3668	RdrCEF.exe	88
PID 3668 wrote to memory of 100	3668	RdrCEF.exe	88
PID 3668 wrote to memory of 100	3668	RdrCEF.exe	88
PID 3668 wrote to memory of 100	3668	RdrCEF.exe	88
PID 3668 wrote to memory of 100	3668	RdrCEF.exe	88

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\327711497.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:3532
- 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:3668
- - 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=4AFBE50FCF3EF1F9BB143DC4773FE91F --mojo-platform-channel-handle=1736 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4596
- - 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=4717004BA06095CF42F9C1A4C8DC5929 --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=2 --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=4717004BA06095CF42F9C1A4C8DC5929 --renderer-client-id=2 --mojo-platform-channel-handle=1756 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:100
- - 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=ECFB5FDE923FA29F0590AC327E36D09C --mojo-platform-channel-handle=2312 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:752
- - 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=0FEFCC6CB3F4814F95DD67EBF996C8DA --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=2 --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=0FEFCC6CB3F4814F95DD67EBF996C8DA --renderer-client-id=5 --mojo-platform-channel-handle=1732 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:736
- - 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=687356E6C061F36D72FFE9E3F587C0CF --mojo-platform-channel-handle=2356 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4032
- - 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=C861150FE2ADAAEC23041B620C01E2BC --mojo-platform-channel-handle=2592 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2284

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:3492

Network

MITRE ATT&CK Enterprise v6

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

Filesize
64KB

MD5
a2d89542bc522641f8ee94734428317d

SHA1
d306723c376e70229d410037031b75e75f1ab79b

SHA256
36bb50c9ef51213cc4a76007a86cfe69a3b1a2b3c17874faf316d49cf92c5408

SHA512
ebc500c4e8d5835900e400764c9d4917ad593feabd02c53f939a58a1b3efa9ef302727d60b45dae10099064c256b094ccb8ad9b811f8a545438ffa1113669be3

Download Submit