2e491ffe56dc5b70400dad3aef61fdab3721fe9958627aec97bab833358f0ad5

Analysis

max time kernel
147s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240221-en
resource tags

arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
submitted
24/02/2024, 21:18

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General

Target

a2c57d24b3b2e890d060dbb595e01f8d.pdf
Size

104KB
MD5

a2c57d24b3b2e890d060dbb595e01f8d
SHA1

444dff731cd157dfca38da9a51bb509bd01f3126
SHA256

2e491ffe56dc5b70400dad3aef61fdab3721fe9958627aec97bab833358f0ad5
SHA512

266b9c8998ec0fff1bf10116fcc08eb7b11607d8765193e0b0b2674445f53089494deb1a55f326a899b886531288744e826ef72cc8825fd1d0a8ca7875313272
SSDEEP

1536:X5KLwt77t62Xjz4bBaZ6dBmYxqYtNY6jP2K0o+tf7RrMcrcWCY4QnEWv8Wt4WOpb:p77t62zWQ67pqYtNPP2KyRrM41Q+1Zo

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-1-5-21-3054445511-921769590-4013668107-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
4940	AcroRd32.exe
4940	AcroRd32.exe
4940	AcroRd32.exe
4940	AcroRd32.exe
4940	AcroRd32.exe
4940	AcroRd32.exe
4940	AcroRd32.exe
4940	AcroRd32.exe
4940	AcroRd32.exe
4940	AcroRd32.exe
4940	AcroRd32.exe
4940	AcroRd32.exe
4940	AcroRd32.exe
4940	AcroRd32.exe
4940	AcroRd32.exe
4940	AcroRd32.exe
4940	AcroRd32.exe
4940	AcroRd32.exe
4940	AcroRd32.exe
4940	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4940	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
4940	AcroRd32.exe
4940	AcroRd32.exe
4940	AcroRd32.exe
4940	AcroRd32.exe
4940	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4940 wrote to memory of 3616	4940	AcroRd32.exe	90
PID 4940 wrote to memory of 3616	4940	AcroRd32.exe	90
PID 4940 wrote to memory of 3616	4940	AcroRd32.exe	90
PID 3616 wrote to memory of 3184	3616	RdrCEF.exe	91
PID 3616 wrote to memory of 3184	3616	RdrCEF.exe	91
PID 3616 wrote to memory of 3184	3616	RdrCEF.exe	91
PID 3616 wrote to memory of 3184	3616	RdrCEF.exe	91
PID 3616 wrote to memory of 3184	3616	RdrCEF.exe	91
PID 3616 wrote to memory of 3184	3616	RdrCEF.exe	91
PID 3616 wrote to memory of 3184	3616	RdrCEF.exe	91
PID 3616 wrote to memory of 3184	3616	RdrCEF.exe	91
PID 3616 wrote to memory of 3184	3616	RdrCEF.exe	91
PID 3616 wrote to memory of 3184	3616	RdrCEF.exe	91
PID 3616 wrote to memory of 3184	3616	RdrCEF.exe	91
PID 3616 wrote to memory of 3184	3616	RdrCEF.exe	91
PID 3616 wrote to memory of 3184	3616	RdrCEF.exe	91
PID 3616 wrote to memory of 3184	3616	RdrCEF.exe	91
PID 3616 wrote to memory of 3184	3616	RdrCEF.exe	91
PID 3616 wrote to memory of 3184	3616	RdrCEF.exe	91
PID 3616 wrote to memory of 3184	3616	RdrCEF.exe	91
PID 3616 wrote to memory of 3184	3616	RdrCEF.exe	91
PID 3616 wrote to memory of 3184	3616	RdrCEF.exe	91
PID 3616 wrote to memory of 3184	3616	RdrCEF.exe	91
PID 3616 wrote to memory of 3184	3616	RdrCEF.exe	91
PID 3616 wrote to memory of 3184	3616	RdrCEF.exe	91
PID 3616 wrote to memory of 3184	3616	RdrCEF.exe	91
PID 3616 wrote to memory of 3184	3616	RdrCEF.exe	91
PID 3616 wrote to memory of 3184	3616	RdrCEF.exe	91
PID 3616 wrote to memory of 3184	3616	RdrCEF.exe	91
PID 3616 wrote to memory of 3184	3616	RdrCEF.exe	91
PID 3616 wrote to memory of 3184	3616	RdrCEF.exe	91
PID 3616 wrote to memory of 3184	3616	RdrCEF.exe	91
PID 3616 wrote to memory of 3184	3616	RdrCEF.exe	91
PID 3616 wrote to memory of 3184	3616	RdrCEF.exe	91
PID 3616 wrote to memory of 3184	3616	RdrCEF.exe	91
PID 3616 wrote to memory of 3184	3616	RdrCEF.exe	91
PID 3616 wrote to memory of 3184	3616	RdrCEF.exe	91
PID 3616 wrote to memory of 3184	3616	RdrCEF.exe	91
PID 3616 wrote to memory of 3184	3616	RdrCEF.exe	91
PID 3616 wrote to memory of 3184	3616	RdrCEF.exe	91
PID 3616 wrote to memory of 3184	3616	RdrCEF.exe	91
PID 3616 wrote to memory of 3184	3616	RdrCEF.exe	91
PID 3616 wrote to memory of 3184	3616	RdrCEF.exe	91
PID 3616 wrote to memory of 3184	3616	RdrCEF.exe	91
PID 3616 wrote to memory of 212	3616	RdrCEF.exe	92
PID 3616 wrote to memory of 212	3616	RdrCEF.exe	92
PID 3616 wrote to memory of 212	3616	RdrCEF.exe	92
PID 3616 wrote to memory of 212	3616	RdrCEF.exe	92
PID 3616 wrote to memory of 212	3616	RdrCEF.exe	92
PID 3616 wrote to memory of 212	3616	RdrCEF.exe	92
PID 3616 wrote to memory of 212	3616	RdrCEF.exe	92
PID 3616 wrote to memory of 212	3616	RdrCEF.exe	92
PID 3616 wrote to memory of 212	3616	RdrCEF.exe	92
PID 3616 wrote to memory of 212	3616	RdrCEF.exe	92
PID 3616 wrote to memory of 212	3616	RdrCEF.exe	92
PID 3616 wrote to memory of 212	3616	RdrCEF.exe	92
PID 3616 wrote to memory of 212	3616	RdrCEF.exe	92
PID 3616 wrote to memory of 212	3616	RdrCEF.exe	92
PID 3616 wrote to memory of 212	3616	RdrCEF.exe	92
PID 3616 wrote to memory of 212	3616	RdrCEF.exe	92
PID 3616 wrote to memory of 212	3616	RdrCEF.exe	92
PID 3616 wrote to memory of 212	3616	RdrCEF.exe	92
PID 3616 wrote to memory of 212	3616	RdrCEF.exe	92
PID 3616 wrote to memory of 212	3616	RdrCEF.exe	92

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\a2c57d24b3b2e890d060dbb595e01f8d.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:4940
- 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:3616
- - 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=8B33D8A0C6E4B8C69D452211F18EDA0F --mojo-platform-channel-handle=1752 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3184
- - 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=33D16C74880B2416539C297DD519361C --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=33D16C74880B2416539C297DD519361C --renderer-client-id=2 --mojo-platform-channel-handle=1760 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:212
- - 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=6E259AD436C8C89DDFD8BA87CF739362 --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=6E259AD436C8C89DDFD8BA87CF739362 --renderer-client-id=4 --mojo-platform-channel-handle=2308 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:3484
- - 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=B47A5CE3D76774A66653EA3D27E55E78 --mojo-platform-channel-handle=2320 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2340
- - 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=B879D3BD3A0744FAA96254D78839BE78 --mojo-platform-channel-handle=2576 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4828
- - 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=59818BC0A94A7D3DC4ABEF63DDC0979C --mojo-platform-channel-handle=1824 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2008

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:4976

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
05ee32dc2bf5e5a720e7d4d467e9b120

SHA1
934419077ec08d8d01a8e5a880438fa46e3a05c5

SHA256
ce8985d2047cf58e9af775436ad593caa02f9bb297e78486c746cd933f336d1b

SHA512
1584108ed3d390761e8d9d728b89483e72bff33273d55a08c9bc448ff868bf4e6157d0664a3506da42e5ec22f5990268e233a9554f153b64e69b2f03b80bed30

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