dbd531836b9765aeaf14318c7be8ebad21d7a1a992c6842ccb317d9524bec14c

Analysis

max time kernel
140s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
04-02-2024 15:46

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General

Target

8f8a6db444244b53ee808e47e30c57ac.pdf
Size

103KB
MD5

8f8a6db444244b53ee808e47e30c57ac
SHA1

5d4b3319d7394362f72269bbaa2c3f0246ef4fc9
SHA256

dbd531836b9765aeaf14318c7be8ebad21d7a1a992c6842ccb317d9524bec14c
SHA512

da0b803294bbaadb939ec6023b311c055c884bff5895857a3c134427414338c93d907850ebe5b284b18dcae70133178ac951726f14ffb18f0c9def7ddf70ac46
SSDEEP

3072:UmwcNIilVhHYz5myzXyhZkpTJwOcLB7S1:U8NJntE5dinkpck

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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	AcroRd32.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	AcroRd32.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1168293393-3419776239-306423207-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
2208	AcroRd32.exe
2208	AcroRd32.exe
2208	AcroRd32.exe
2208	AcroRd32.exe
2208	AcroRd32.exe
2208	AcroRd32.exe
2208	AcroRd32.exe
2208	AcroRd32.exe
2208	AcroRd32.exe
2208	AcroRd32.exe
2208	AcroRd32.exe
2208	AcroRd32.exe
2208	AcroRd32.exe
2208	AcroRd32.exe
2208	AcroRd32.exe
2208	AcroRd32.exe
2208	AcroRd32.exe
2208	AcroRd32.exe
2208	AcroRd32.exe
2208	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2208	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
2208	AcroRd32.exe
2208	AcroRd32.exe
2208	AcroRd32.exe
2208	AcroRd32.exe
2208	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2208 wrote to memory of 2952	2208	AcroRd32.exe	91
PID 2208 wrote to memory of 2952	2208	AcroRd32.exe	91
PID 2208 wrote to memory of 2952	2208	AcroRd32.exe	91
PID 2952 wrote to memory of 1440	2952	RdrCEF.exe	94
PID 2952 wrote to memory of 1440	2952	RdrCEF.exe	94
PID 2952 wrote to memory of 1440	2952	RdrCEF.exe	94
PID 2952 wrote to memory of 1440	2952	RdrCEF.exe	94
PID 2952 wrote to memory of 1440	2952	RdrCEF.exe	94
PID 2952 wrote to memory of 1440	2952	RdrCEF.exe	94
PID 2952 wrote to memory of 1440	2952	RdrCEF.exe	94
PID 2952 wrote to memory of 1440	2952	RdrCEF.exe	94
PID 2952 wrote to memory of 1440	2952	RdrCEF.exe	94
PID 2952 wrote to memory of 1440	2952	RdrCEF.exe	94
PID 2952 wrote to memory of 1440	2952	RdrCEF.exe	94
PID 2952 wrote to memory of 1440	2952	RdrCEF.exe	94
PID 2952 wrote to memory of 1440	2952	RdrCEF.exe	94
PID 2952 wrote to memory of 1440	2952	RdrCEF.exe	94
PID 2952 wrote to memory of 1440	2952	RdrCEF.exe	94
PID 2952 wrote to memory of 1440	2952	RdrCEF.exe	94
PID 2952 wrote to memory of 1440	2952	RdrCEF.exe	94
PID 2952 wrote to memory of 1440	2952	RdrCEF.exe	94
PID 2952 wrote to memory of 1440	2952	RdrCEF.exe	94
PID 2952 wrote to memory of 1440	2952	RdrCEF.exe	94
PID 2952 wrote to memory of 1440	2952	RdrCEF.exe	94
PID 2952 wrote to memory of 1440	2952	RdrCEF.exe	94
PID 2952 wrote to memory of 1440	2952	RdrCEF.exe	94
PID 2952 wrote to memory of 1440	2952	RdrCEF.exe	94
PID 2952 wrote to memory of 1440	2952	RdrCEF.exe	94
PID 2952 wrote to memory of 1440	2952	RdrCEF.exe	94
PID 2952 wrote to memory of 1440	2952	RdrCEF.exe	94
PID 2952 wrote to memory of 1440	2952	RdrCEF.exe	94
PID 2952 wrote to memory of 1440	2952	RdrCEF.exe	94
PID 2952 wrote to memory of 1440	2952	RdrCEF.exe	94
PID 2952 wrote to memory of 1440	2952	RdrCEF.exe	94
PID 2952 wrote to memory of 1440	2952	RdrCEF.exe	94
PID 2952 wrote to memory of 1440	2952	RdrCEF.exe	94
PID 2952 wrote to memory of 1440	2952	RdrCEF.exe	94
PID 2952 wrote to memory of 1440	2952	RdrCEF.exe	94
PID 2952 wrote to memory of 1440	2952	RdrCEF.exe	94
PID 2952 wrote to memory of 1440	2952	RdrCEF.exe	94
PID 2952 wrote to memory of 1440	2952	RdrCEF.exe	94
PID 2952 wrote to memory of 1440	2952	RdrCEF.exe	94
PID 2952 wrote to memory of 1440	2952	RdrCEF.exe	94
PID 2952 wrote to memory of 1440	2952	RdrCEF.exe	94
PID 2952 wrote to memory of 184	2952	RdrCEF.exe	95
PID 2952 wrote to memory of 184	2952	RdrCEF.exe	95
PID 2952 wrote to memory of 184	2952	RdrCEF.exe	95
PID 2952 wrote to memory of 184	2952	RdrCEF.exe	95
PID 2952 wrote to memory of 184	2952	RdrCEF.exe	95
PID 2952 wrote to memory of 184	2952	RdrCEF.exe	95
PID 2952 wrote to memory of 184	2952	RdrCEF.exe	95
PID 2952 wrote to memory of 184	2952	RdrCEF.exe	95
PID 2952 wrote to memory of 184	2952	RdrCEF.exe	95
PID 2952 wrote to memory of 184	2952	RdrCEF.exe	95
PID 2952 wrote to memory of 184	2952	RdrCEF.exe	95
PID 2952 wrote to memory of 184	2952	RdrCEF.exe	95
PID 2952 wrote to memory of 184	2952	RdrCEF.exe	95
PID 2952 wrote to memory of 184	2952	RdrCEF.exe	95
PID 2952 wrote to memory of 184	2952	RdrCEF.exe	95
PID 2952 wrote to memory of 184	2952	RdrCEF.exe	95
PID 2952 wrote to memory of 184	2952	RdrCEF.exe	95
PID 2952 wrote to memory of 184	2952	RdrCEF.exe	95
PID 2952 wrote to memory of 184	2952	RdrCEF.exe	95
PID 2952 wrote to memory of 184	2952	RdrCEF.exe	95

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\8f8a6db444244b53ee808e47e30c57ac.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:2208
- 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:2952
- - 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=B9142084C9AB5D6262C65862CF7E3710 --mojo-platform-channel-handle=1748 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1440
- - 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=ED70FE57988987E17C7592DAAB1FA101 --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=ED70FE57988987E17C7592DAAB1FA101 --renderer-client-id=2 --mojo-platform-channel-handle=1740 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:184
- - 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=610F1AEFA4EBBA653B44BF7772EAC9BE --mojo-platform-channel-handle=2332 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:724
- - 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=1DD92C27B1A4EBF5E97BC11D93291E0D --mojo-platform-channel-handle=1724 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2696
- - 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=A3FBF14627F918A1D25323CF11D462B8 --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=A3FBF14627F918A1D25323CF11D462B8 --renderer-client-id=6 --mojo-platform-channel-handle=1752 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4324
- - 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=0004BE0517CCD79DBCE66B50193B1C0C --mojo-platform-channel-handle=2436 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1544

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:1584

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

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

Filesize
64KB

MD5
848a22a084be9cf08bd0fd669bfdbb11

SHA1
3fed8d24504ae50759a8865b574d5affffd29c44

SHA256
1727af6a1be6eccfedb843a7057c3bc65fab38dd48f4c727cadc7c3ce534c8fe

SHA512
57193d1a0300507a2647cb0470a9da7da1aed7689fa5f3cc1e14a5f411c58f31757a1a8c6fa9563e756e2ba2c2bf4acca0147217468bd4de367c0d28a651991b

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