b2ab3587fcc53a405ddc4f06a73112f62d90a7f021c5531a5d361effc4fa4468

Analysis

max time kernel
149s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
07/03/2024, 10:06

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General

Target

b877dd18fea373ed512654fb4a378c76.pdf
Size

98KB
MD5

b877dd18fea373ed512654fb4a378c76
SHA1

b3d10fed3be4cc477dd5eccd86757a3efb4a05dd
SHA256

b2ab3587fcc53a405ddc4f06a73112f62d90a7f021c5531a5d361effc4fa4468
SHA512

04bd22111c29071ff162ab08f72c6009322632dbea2a6b0db7b46f39016ef6c56933941743ebbc4e29b92943456193437454bcbf32af2f92910c53548513e91e
SSDEEP

3072:1dIC+zwaFuwAkGMudX/hz9v6nUlDw6WYxHL1:XIC+zwEqMoPi3iZ

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-1-5-21-2727153400-192325109-1870347593-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
2256	AcroRd32.exe
2256	AcroRd32.exe
2256	AcroRd32.exe
2256	AcroRd32.exe
2256	AcroRd32.exe
2256	AcroRd32.exe
2256	AcroRd32.exe
2256	AcroRd32.exe
2256	AcroRd32.exe
2256	AcroRd32.exe
2256	AcroRd32.exe
2256	AcroRd32.exe
2256	AcroRd32.exe
2256	AcroRd32.exe
2256	AcroRd32.exe
2256	AcroRd32.exe
2256	AcroRd32.exe
2256	AcroRd32.exe
2256	AcroRd32.exe
2256	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2256	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
2256	AcroRd32.exe
2256	AcroRd32.exe
2256	AcroRd32.exe
2256	AcroRd32.exe
2256	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2256 wrote to memory of 4676	2256	AcroRd32.exe	93
PID 2256 wrote to memory of 4676	2256	AcroRd32.exe	93
PID 2256 wrote to memory of 4676	2256	AcroRd32.exe	93
PID 4676 wrote to memory of 1840	4676	RdrCEF.exe	94
PID 4676 wrote to memory of 1840	4676	RdrCEF.exe	94
PID 4676 wrote to memory of 1840	4676	RdrCEF.exe	94
PID 4676 wrote to memory of 1840	4676	RdrCEF.exe	94
PID 4676 wrote to memory of 1840	4676	RdrCEF.exe	94
PID 4676 wrote to memory of 1840	4676	RdrCEF.exe	94
PID 4676 wrote to memory of 1840	4676	RdrCEF.exe	94
PID 4676 wrote to memory of 1840	4676	RdrCEF.exe	94
PID 4676 wrote to memory of 1840	4676	RdrCEF.exe	94
PID 4676 wrote to memory of 1840	4676	RdrCEF.exe	94
PID 4676 wrote to memory of 1840	4676	RdrCEF.exe	94
PID 4676 wrote to memory of 1840	4676	RdrCEF.exe	94
PID 4676 wrote to memory of 1840	4676	RdrCEF.exe	94
PID 4676 wrote to memory of 1840	4676	RdrCEF.exe	94
PID 4676 wrote to memory of 1840	4676	RdrCEF.exe	94
PID 4676 wrote to memory of 1840	4676	RdrCEF.exe	94
PID 4676 wrote to memory of 1840	4676	RdrCEF.exe	94
PID 4676 wrote to memory of 1840	4676	RdrCEF.exe	94
PID 4676 wrote to memory of 1840	4676	RdrCEF.exe	94
PID 4676 wrote to memory of 1840	4676	RdrCEF.exe	94
PID 4676 wrote to memory of 1840	4676	RdrCEF.exe	94
PID 4676 wrote to memory of 1840	4676	RdrCEF.exe	94
PID 4676 wrote to memory of 1840	4676	RdrCEF.exe	94
PID 4676 wrote to memory of 1840	4676	RdrCEF.exe	94
PID 4676 wrote to memory of 1840	4676	RdrCEF.exe	94
PID 4676 wrote to memory of 1840	4676	RdrCEF.exe	94
PID 4676 wrote to memory of 1840	4676	RdrCEF.exe	94
PID 4676 wrote to memory of 1840	4676	RdrCEF.exe	94
PID 4676 wrote to memory of 1840	4676	RdrCEF.exe	94
PID 4676 wrote to memory of 1840	4676	RdrCEF.exe	94
PID 4676 wrote to memory of 1840	4676	RdrCEF.exe	94
PID 4676 wrote to memory of 1840	4676	RdrCEF.exe	94
PID 4676 wrote to memory of 1840	4676	RdrCEF.exe	94
PID 4676 wrote to memory of 1840	4676	RdrCEF.exe	94
PID 4676 wrote to memory of 1840	4676	RdrCEF.exe	94
PID 4676 wrote to memory of 1840	4676	RdrCEF.exe	94
PID 4676 wrote to memory of 1840	4676	RdrCEF.exe	94
PID 4676 wrote to memory of 1840	4676	RdrCEF.exe	94
PID 4676 wrote to memory of 1840	4676	RdrCEF.exe	94
PID 4676 wrote to memory of 1840	4676	RdrCEF.exe	94
PID 4676 wrote to memory of 1840	4676	RdrCEF.exe	94
PID 4676 wrote to memory of 3240	4676	RdrCEF.exe	95
PID 4676 wrote to memory of 3240	4676	RdrCEF.exe	95
PID 4676 wrote to memory of 3240	4676	RdrCEF.exe	95
PID 4676 wrote to memory of 3240	4676	RdrCEF.exe	95
PID 4676 wrote to memory of 3240	4676	RdrCEF.exe	95
PID 4676 wrote to memory of 3240	4676	RdrCEF.exe	95
PID 4676 wrote to memory of 3240	4676	RdrCEF.exe	95
PID 4676 wrote to memory of 3240	4676	RdrCEF.exe	95
PID 4676 wrote to memory of 3240	4676	RdrCEF.exe	95
PID 4676 wrote to memory of 3240	4676	RdrCEF.exe	95
PID 4676 wrote to memory of 3240	4676	RdrCEF.exe	95
PID 4676 wrote to memory of 3240	4676	RdrCEF.exe	95
PID 4676 wrote to memory of 3240	4676	RdrCEF.exe	95
PID 4676 wrote to memory of 3240	4676	RdrCEF.exe	95
PID 4676 wrote to memory of 3240	4676	RdrCEF.exe	95
PID 4676 wrote to memory of 3240	4676	RdrCEF.exe	95
PID 4676 wrote to memory of 3240	4676	RdrCEF.exe	95
PID 4676 wrote to memory of 3240	4676	RdrCEF.exe	95
PID 4676 wrote to memory of 3240	4676	RdrCEF.exe	95
PID 4676 wrote to memory of 3240	4676	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\b877dd18fea373ed512654fb4a378c76.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:2256
- 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:4676
- - 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=5E228714CC0865C206EE7A6A3836449B --mojo-platform-channel-handle=1748 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1840
- - 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=9ECC5CF63E63A8E5ABE88803D378EBBC --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=9ECC5CF63E63A8E5ABE88803D378EBBC --renderer-client-id=2 --mojo-platform-channel-handle=1740 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:3240
- - 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=C7117E9BC81624EF514C8AFCE79C8DC5 --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=C7117E9BC81624EF514C8AFCE79C8DC5 --renderer-client-id=4 --mojo-platform-channel-handle=2312 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:1716
- - 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=65B72E719666699328305A8A957B3A0A --mojo-platform-channel-handle=2580 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:5092
- - 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=BBDA21DA8A04E806BE2136B8014A780E --mojo-platform-channel-handle=1752 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2268
- - 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=CF97C83D627120A588D378ED2F3AE5A4 --mojo-platform-channel-handle=1944 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1388

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:1736

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
00b06f4145fff1ffe3796ce1878ae0b0

SHA1
70d01acaf87e4be8f769eb62d086bf2f343cf28c

SHA256
f1bd11eebeaee957d0e996942828e0e40e7fd2ccc8926f91c2dc7d5ae32d4031

SHA512
e6b65d8ebacd15cb240a371b096b037348bf5636a215d36d8f9d46342d3d38b5ab19555678d1fca6dc73fee46ffcde6dfdf0dfe521cbf76b5d4bf8ed54f8a59b

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