e5d5ae98dab5cc0ff1e5936e97c6f2a462b61386ecca1c7a74a2a8cec578fda8

Analysis

max time kernel
22s
max time network
18s
platform
windows11-21h2_x64
resource
win11-20240704-en
resource tags

arch:x64arch:x86image:win11-20240704-enlocale:en-usos:windows11-21h2-x64system
submitted
09-07-2024 15:15

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General

Target

GrudgeTerminator-main/pdf24_merged.pdf
Size

320KB
MD5

01483d8d39218aed6cda5e43b818f7ff
SHA1

e2696729e715b67b97f1227bfef0ede2b52b2ae4
SHA256

312bc7e4792296a1a1b116dd1e9176e66aa97292ec35e95bede23da1f8f16ae2
SHA512

62b609b13602f8a137bbf722a2e0d3a8e1a59759b779784d0e007b818a9f35213773f2dc1433f217a96710ad591162cba274a17b4880050b4c7b21f6b8101233
SSDEEP

6144:zQkPmnIDaN1s6ybfVvF5lbcyYrSlH8anMidDlmRjR1zRPtXf2hTF6lD:sOA1s6yb9dXbcytRMidDlmxzRVTD

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-1-5-21-3637012076-1497690007-2831451688-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
3308	AcroRd32.exe
3308	AcroRd32.exe
3308	AcroRd32.exe
3308	AcroRd32.exe
3308	AcroRd32.exe
3308	AcroRd32.exe
3308	AcroRd32.exe
3308	AcroRd32.exe
3308	AcroRd32.exe
3308	AcroRd32.exe
3308	AcroRd32.exe
3308	AcroRd32.exe
3308	AcroRd32.exe
3308	AcroRd32.exe
3308	AcroRd32.exe
3308	AcroRd32.exe
3308	AcroRd32.exe
3308	AcroRd32.exe
3308	AcroRd32.exe
3308	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3308	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
3308	AcroRd32.exe
3308	AcroRd32.exe
3308	AcroRd32.exe
3308	AcroRd32.exe
3308	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 3308 wrote to memory of 4256	3308	AcroRd32.exe	82
PID 3308 wrote to memory of 4256	3308	AcroRd32.exe	82
PID 3308 wrote to memory of 4256	3308	AcroRd32.exe	82
PID 4256 wrote to memory of 800	4256	RdrCEF.exe	83
PID 4256 wrote to memory of 800	4256	RdrCEF.exe	83
PID 4256 wrote to memory of 800	4256	RdrCEF.exe	83
PID 4256 wrote to memory of 800	4256	RdrCEF.exe	83
PID 4256 wrote to memory of 800	4256	RdrCEF.exe	83
PID 4256 wrote to memory of 800	4256	RdrCEF.exe	83
PID 4256 wrote to memory of 800	4256	RdrCEF.exe	83
PID 4256 wrote to memory of 800	4256	RdrCEF.exe	83
PID 4256 wrote to memory of 800	4256	RdrCEF.exe	83
PID 4256 wrote to memory of 800	4256	RdrCEF.exe	83
PID 4256 wrote to memory of 800	4256	RdrCEF.exe	83
PID 4256 wrote to memory of 800	4256	RdrCEF.exe	83
PID 4256 wrote to memory of 800	4256	RdrCEF.exe	83
PID 4256 wrote to memory of 800	4256	RdrCEF.exe	83
PID 4256 wrote to memory of 800	4256	RdrCEF.exe	83
PID 4256 wrote to memory of 800	4256	RdrCEF.exe	83
PID 4256 wrote to memory of 800	4256	RdrCEF.exe	83
PID 4256 wrote to memory of 800	4256	RdrCEF.exe	83
PID 4256 wrote to memory of 800	4256	RdrCEF.exe	83
PID 4256 wrote to memory of 800	4256	RdrCEF.exe	83
PID 4256 wrote to memory of 800	4256	RdrCEF.exe	83
PID 4256 wrote to memory of 800	4256	RdrCEF.exe	83
PID 4256 wrote to memory of 800	4256	RdrCEF.exe	83
PID 4256 wrote to memory of 800	4256	RdrCEF.exe	83
PID 4256 wrote to memory of 800	4256	RdrCEF.exe	83
PID 4256 wrote to memory of 800	4256	RdrCEF.exe	83
PID 4256 wrote to memory of 800	4256	RdrCEF.exe	83
PID 4256 wrote to memory of 800	4256	RdrCEF.exe	83
PID 4256 wrote to memory of 800	4256	RdrCEF.exe	83
PID 4256 wrote to memory of 800	4256	RdrCEF.exe	83
PID 4256 wrote to memory of 800	4256	RdrCEF.exe	83
PID 4256 wrote to memory of 800	4256	RdrCEF.exe	83
PID 4256 wrote to memory of 800	4256	RdrCEF.exe	83
PID 4256 wrote to memory of 800	4256	RdrCEF.exe	83
PID 4256 wrote to memory of 800	4256	RdrCEF.exe	83
PID 4256 wrote to memory of 800	4256	RdrCEF.exe	83
PID 4256 wrote to memory of 800	4256	RdrCEF.exe	83
PID 4256 wrote to memory of 800	4256	RdrCEF.exe	83
PID 4256 wrote to memory of 800	4256	RdrCEF.exe	83
PID 4256 wrote to memory of 800	4256	RdrCEF.exe	83
PID 4256 wrote to memory of 800	4256	RdrCEF.exe	83
PID 4256 wrote to memory of 3372	4256	RdrCEF.exe	84
PID 4256 wrote to memory of 3372	4256	RdrCEF.exe	84
PID 4256 wrote to memory of 3372	4256	RdrCEF.exe	84
PID 4256 wrote to memory of 3372	4256	RdrCEF.exe	84
PID 4256 wrote to memory of 3372	4256	RdrCEF.exe	84
PID 4256 wrote to memory of 3372	4256	RdrCEF.exe	84
PID 4256 wrote to memory of 3372	4256	RdrCEF.exe	84
PID 4256 wrote to memory of 3372	4256	RdrCEF.exe	84
PID 4256 wrote to memory of 3372	4256	RdrCEF.exe	84
PID 4256 wrote to memory of 3372	4256	RdrCEF.exe	84
PID 4256 wrote to memory of 3372	4256	RdrCEF.exe	84
PID 4256 wrote to memory of 3372	4256	RdrCEF.exe	84
PID 4256 wrote to memory of 3372	4256	RdrCEF.exe	84
PID 4256 wrote to memory of 3372	4256	RdrCEF.exe	84
PID 4256 wrote to memory of 3372	4256	RdrCEF.exe	84
PID 4256 wrote to memory of 3372	4256	RdrCEF.exe	84
PID 4256 wrote to memory of 3372	4256	RdrCEF.exe	84
PID 4256 wrote to memory of 3372	4256	RdrCEF.exe	84
PID 4256 wrote to memory of 3372	4256	RdrCEF.exe	84
PID 4256 wrote to memory of 3372	4256	RdrCEF.exe	84

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\GrudgeTerminator-main\pdf24_merged.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:3308
- 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:4256
- - 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=03A2FFFE5D27F8AC6317C1821F933F07 --mojo-platform-channel-handle=1764 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:800
- - 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=92EB01AA2FC195472D455F38E20AA756 --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=92EB01AA2FC195472D455F38E20AA756 --renderer-client-id=2 --mojo-platform-channel-handle=1772 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:3372
- - 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=58EC38B430A29462B420A8A3F53405C8 --mojo-platform-channel-handle=2324 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1880
- - 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=677F8B8D0E0FB028E83C093CD4028711 --mojo-platform-channel-handle=1960 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4108
- - 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=5BF9A727C47181B6D5F6E039FCB0DB6E --mojo-platform-channel-handle=2352 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2596
- - 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=382CA4AEF3736FAD306E4CDC26011EC4 --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=382CA4AEF3736FAD306E4CDC26011EC4 --renderer-client-id=7 --mojo-platform-channel-handle=2324 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:836

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:1772

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

Loading Replay Monitor...

Downloads

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

Filesize
64KB

MD5
1251aa462d96798ab8e48f5d0c3fa06d

SHA1
b67787ec646bf3d06fb8fa02e975475ec94eb482

SHA256
69ebe2de21bf59e3fba21f17cd9142682172958258333f63527f98650995fcc7

SHA512
b9f605b0f4a9722944d0570fa9e0cb87f10713f8b9590750e5837422b226d5e6686873b7e33fda1d6486ed1294fe583ff5ed12b665c342992955d7c6acdae623

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