4bb9c39f6c72240a0fb9daf31cb4b91ce215dea75a4e381f6808f8cd439140f4

Analysis

max time kernel
144s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
26/12/2023, 05:24

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General

Target

574bfee301b4f25e7f3a6917ee4d9edd.pdf
Size

120KB
MD5

574bfee301b4f25e7f3a6917ee4d9edd
SHA1

8d04ef68eca85d4600b1fd0020e7140245b50bb2
SHA256

4bb9c39f6c72240a0fb9daf31cb4b91ce215dea75a4e381f6808f8cd439140f4
SHA512

af257fed28314c263e4d05be1438daec4695cdf626b567e834a5c0fff447639d65e7104a60283344c31c59872c7f4e7d7c3d3355221e8a824fc5e7cb467a01a5
SSDEEP

1536:ksGdq5HHHPHEvhljkH+itc4bsTsFb1ZSr1ofJvTsoENOMT41oekqWTjWar5HPJup:+yHPHEvctc4wTsx1nhiPdFh1h/7py8s

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-1-5-21-3803511929-1339359695-2191195476-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
3740	AcroRd32.exe
3740	AcroRd32.exe
3740	AcroRd32.exe
3740	AcroRd32.exe
3740	AcroRd32.exe
3740	AcroRd32.exe
3740	AcroRd32.exe
3740	AcroRd32.exe
3740	AcroRd32.exe
3740	AcroRd32.exe
3740	AcroRd32.exe
3740	AcroRd32.exe
3740	AcroRd32.exe
3740	AcroRd32.exe
3740	AcroRd32.exe
3740	AcroRd32.exe
3740	AcroRd32.exe
3740	AcroRd32.exe
3740	AcroRd32.exe
3740	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3740	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
3740	AcroRd32.exe
3740	AcroRd32.exe
3740	AcroRd32.exe
3740	AcroRd32.exe
3740	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 3740 wrote to memory of 1420	3740	AcroRd32.exe	91
PID 3740 wrote to memory of 1420	3740	AcroRd32.exe	91
PID 3740 wrote to memory of 1420	3740	AcroRd32.exe	91
PID 1420 wrote to memory of 448	1420	RdrCEF.exe	92
PID 1420 wrote to memory of 448	1420	RdrCEF.exe	92
PID 1420 wrote to memory of 448	1420	RdrCEF.exe	92
PID 1420 wrote to memory of 448	1420	RdrCEF.exe	92
PID 1420 wrote to memory of 448	1420	RdrCEF.exe	92
PID 1420 wrote to memory of 448	1420	RdrCEF.exe	92
PID 1420 wrote to memory of 448	1420	RdrCEF.exe	92
PID 1420 wrote to memory of 448	1420	RdrCEF.exe	92
PID 1420 wrote to memory of 448	1420	RdrCEF.exe	92
PID 1420 wrote to memory of 448	1420	RdrCEF.exe	92
PID 1420 wrote to memory of 448	1420	RdrCEF.exe	92
PID 1420 wrote to memory of 448	1420	RdrCEF.exe	92
PID 1420 wrote to memory of 448	1420	RdrCEF.exe	92
PID 1420 wrote to memory of 448	1420	RdrCEF.exe	92
PID 1420 wrote to memory of 448	1420	RdrCEF.exe	92
PID 1420 wrote to memory of 448	1420	RdrCEF.exe	92
PID 1420 wrote to memory of 448	1420	RdrCEF.exe	92
PID 1420 wrote to memory of 448	1420	RdrCEF.exe	92
PID 1420 wrote to memory of 448	1420	RdrCEF.exe	92
PID 1420 wrote to memory of 448	1420	RdrCEF.exe	92
PID 1420 wrote to memory of 448	1420	RdrCEF.exe	92
PID 1420 wrote to memory of 448	1420	RdrCEF.exe	92
PID 1420 wrote to memory of 448	1420	RdrCEF.exe	92
PID 1420 wrote to memory of 448	1420	RdrCEF.exe	92
PID 1420 wrote to memory of 448	1420	RdrCEF.exe	92
PID 1420 wrote to memory of 448	1420	RdrCEF.exe	92
PID 1420 wrote to memory of 448	1420	RdrCEF.exe	92
PID 1420 wrote to memory of 448	1420	RdrCEF.exe	92
PID 1420 wrote to memory of 448	1420	RdrCEF.exe	92
PID 1420 wrote to memory of 448	1420	RdrCEF.exe	92
PID 1420 wrote to memory of 448	1420	RdrCEF.exe	92
PID 1420 wrote to memory of 448	1420	RdrCEF.exe	92
PID 1420 wrote to memory of 448	1420	RdrCEF.exe	92
PID 1420 wrote to memory of 448	1420	RdrCEF.exe	92
PID 1420 wrote to memory of 448	1420	RdrCEF.exe	92
PID 1420 wrote to memory of 448	1420	RdrCEF.exe	92
PID 1420 wrote to memory of 448	1420	RdrCEF.exe	92
PID 1420 wrote to memory of 448	1420	RdrCEF.exe	92
PID 1420 wrote to memory of 448	1420	RdrCEF.exe	92
PID 1420 wrote to memory of 448	1420	RdrCEF.exe	92
PID 1420 wrote to memory of 448	1420	RdrCEF.exe	92
PID 1420 wrote to memory of 4324	1420	RdrCEF.exe	93
PID 1420 wrote to memory of 4324	1420	RdrCEF.exe	93
PID 1420 wrote to memory of 4324	1420	RdrCEF.exe	93
PID 1420 wrote to memory of 4324	1420	RdrCEF.exe	93
PID 1420 wrote to memory of 4324	1420	RdrCEF.exe	93
PID 1420 wrote to memory of 4324	1420	RdrCEF.exe	93
PID 1420 wrote to memory of 4324	1420	RdrCEF.exe	93
PID 1420 wrote to memory of 4324	1420	RdrCEF.exe	93
PID 1420 wrote to memory of 4324	1420	RdrCEF.exe	93
PID 1420 wrote to memory of 4324	1420	RdrCEF.exe	93
PID 1420 wrote to memory of 4324	1420	RdrCEF.exe	93
PID 1420 wrote to memory of 4324	1420	RdrCEF.exe	93
PID 1420 wrote to memory of 4324	1420	RdrCEF.exe	93
PID 1420 wrote to memory of 4324	1420	RdrCEF.exe	93
PID 1420 wrote to memory of 4324	1420	RdrCEF.exe	93
PID 1420 wrote to memory of 4324	1420	RdrCEF.exe	93
PID 1420 wrote to memory of 4324	1420	RdrCEF.exe	93
PID 1420 wrote to memory of 4324	1420	RdrCEF.exe	93
PID 1420 wrote to memory of 4324	1420	RdrCEF.exe	93
PID 1420 wrote to memory of 4324	1420	RdrCEF.exe	93

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\574bfee301b4f25e7f3a6917ee4d9edd.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:3740
- 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:1420
- - 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=FD7379EC02C13B384DCC4225F669CD27 --mojo-platform-channel-handle=1740 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:448
- - 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=3A1988D5572D98A06CF7B287AFB09318 --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=3A1988D5572D98A06CF7B287AFB09318 --renderer-client-id=2 --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=43D5820F6BB59211F78EA93D4F2B4F27 --mojo-platform-channel-handle=2316 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2540
- - 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=03BEE39DC6CD39C6DFBE4FF44B1F2EB4 --mojo-platform-channel-handle=1860 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4360
- - 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=6FFF3F4B690E5F094D183C4A51E9674C --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=6FFF3F4B690E5F094D183C4A51E9674C --renderer-client-id=6 --mojo-platform-channel-handle=1956 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:2060
- - 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=91EA7825B6174B926CF4E8BD4F825080 --mojo-platform-channel-handle=2780 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4312

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
bf15bf5b2c3222415942f123f7942334

SHA1
cca0036ced1298767ccf02c09ac928a873aa7bcc

SHA256
f44465e35049ff1290f4f7113c62b080e56b9052434817dba1520167681991a0

SHA512
5ecb7436c50fd3ecb6834b6288722e61a9b3a3a67a166b6fcca72089f2772a3a3b34458ba8ce413aa24f2af36b076bf959e89716bd154dc225c16cc3e1927cf4

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