39787acd65ccd51e251aa29eae44f81ad76691013014994445b960d0ff76e683

Analysis

max time kernel
134s
max time network
135s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
06/06/2024, 12:48

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General

Target

Estv-06-2025-ZTCFHbwEsD.pdf
Size

218KB
MD5

46cc5eb999549d760a2b23ad33ea3e29
SHA1

c64013a98d8fb5c3fa067e0ef474705904f54b0a
SHA256

39787acd65ccd51e251aa29eae44f81ad76691013014994445b960d0ff76e683
SHA512

30b19f23000e0e23677f68e2ffad67395e6878214cb5fc878464b6f63fedeb267b7ac95bfdfdaaf3c84a5d331180917c9fedd82c291109deff55c43682a5580e
SSDEEP

3072:sM2K3pPA6Bb1vwHx1OEt/m2AqaOzCFb+fzvCVraVxnboZ7jyR8uwYCNp+iRyM0yL:PxA8bsxT4qLcb+qraLoZHi8uw1p+ZM0G

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-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
4416	AcroRd32.exe
4416	AcroRd32.exe
4416	AcroRd32.exe
4416	AcroRd32.exe
4416	AcroRd32.exe
4416	AcroRd32.exe
4416	AcroRd32.exe
4416	AcroRd32.exe
4416	AcroRd32.exe
4416	AcroRd32.exe
4416	AcroRd32.exe
4416	AcroRd32.exe
4416	AcroRd32.exe
4416	AcroRd32.exe
4416	AcroRd32.exe
4416	AcroRd32.exe
4416	AcroRd32.exe
4416	AcroRd32.exe
4416	AcroRd32.exe
4416	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4416	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
4416	AcroRd32.exe
4416	AcroRd32.exe
4416	AcroRd32.exe
4416	AcroRd32.exe
4416	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4416 wrote to memory of 4796	4416	AcroRd32.exe	93
PID 4416 wrote to memory of 4796	4416	AcroRd32.exe	93
PID 4416 wrote to memory of 4796	4416	AcroRd32.exe	93
PID 4796 wrote to memory of 5108	4796	RdrCEF.exe	94
PID 4796 wrote to memory of 5108	4796	RdrCEF.exe	94
PID 4796 wrote to memory of 5108	4796	RdrCEF.exe	94
PID 4796 wrote to memory of 5108	4796	RdrCEF.exe	94
PID 4796 wrote to memory of 5108	4796	RdrCEF.exe	94
PID 4796 wrote to memory of 5108	4796	RdrCEF.exe	94
PID 4796 wrote to memory of 5108	4796	RdrCEF.exe	94
PID 4796 wrote to memory of 5108	4796	RdrCEF.exe	94
PID 4796 wrote to memory of 5108	4796	RdrCEF.exe	94
PID 4796 wrote to memory of 5108	4796	RdrCEF.exe	94
PID 4796 wrote to memory of 5108	4796	RdrCEF.exe	94
PID 4796 wrote to memory of 5108	4796	RdrCEF.exe	94
PID 4796 wrote to memory of 5108	4796	RdrCEF.exe	94
PID 4796 wrote to memory of 5108	4796	RdrCEF.exe	94
PID 4796 wrote to memory of 5108	4796	RdrCEF.exe	94
PID 4796 wrote to memory of 5108	4796	RdrCEF.exe	94
PID 4796 wrote to memory of 5108	4796	RdrCEF.exe	94
PID 4796 wrote to memory of 5108	4796	RdrCEF.exe	94
PID 4796 wrote to memory of 5108	4796	RdrCEF.exe	94
PID 4796 wrote to memory of 5108	4796	RdrCEF.exe	94
PID 4796 wrote to memory of 5108	4796	RdrCEF.exe	94
PID 4796 wrote to memory of 5108	4796	RdrCEF.exe	94
PID 4796 wrote to memory of 5108	4796	RdrCEF.exe	94
PID 4796 wrote to memory of 5108	4796	RdrCEF.exe	94
PID 4796 wrote to memory of 5108	4796	RdrCEF.exe	94
PID 4796 wrote to memory of 5108	4796	RdrCEF.exe	94
PID 4796 wrote to memory of 5108	4796	RdrCEF.exe	94
PID 4796 wrote to memory of 5108	4796	RdrCEF.exe	94
PID 4796 wrote to memory of 5108	4796	RdrCEF.exe	94
PID 4796 wrote to memory of 5108	4796	RdrCEF.exe	94
PID 4796 wrote to memory of 5108	4796	RdrCEF.exe	94
PID 4796 wrote to memory of 5108	4796	RdrCEF.exe	94
PID 4796 wrote to memory of 5108	4796	RdrCEF.exe	94
PID 4796 wrote to memory of 5108	4796	RdrCEF.exe	94
PID 4796 wrote to memory of 5108	4796	RdrCEF.exe	94
PID 4796 wrote to memory of 5108	4796	RdrCEF.exe	94
PID 4796 wrote to memory of 5108	4796	RdrCEF.exe	94
PID 4796 wrote to memory of 5108	4796	RdrCEF.exe	94
PID 4796 wrote to memory of 5108	4796	RdrCEF.exe	94
PID 4796 wrote to memory of 5108	4796	RdrCEF.exe	94
PID 4796 wrote to memory of 5108	4796	RdrCEF.exe	94
PID 4796 wrote to memory of 1948	4796	RdrCEF.exe	95
PID 4796 wrote to memory of 1948	4796	RdrCEF.exe	95
PID 4796 wrote to memory of 1948	4796	RdrCEF.exe	95
PID 4796 wrote to memory of 1948	4796	RdrCEF.exe	95
PID 4796 wrote to memory of 1948	4796	RdrCEF.exe	95
PID 4796 wrote to memory of 1948	4796	RdrCEF.exe	95
PID 4796 wrote to memory of 1948	4796	RdrCEF.exe	95
PID 4796 wrote to memory of 1948	4796	RdrCEF.exe	95
PID 4796 wrote to memory of 1948	4796	RdrCEF.exe	95
PID 4796 wrote to memory of 1948	4796	RdrCEF.exe	95
PID 4796 wrote to memory of 1948	4796	RdrCEF.exe	95
PID 4796 wrote to memory of 1948	4796	RdrCEF.exe	95
PID 4796 wrote to memory of 1948	4796	RdrCEF.exe	95
PID 4796 wrote to memory of 1948	4796	RdrCEF.exe	95
PID 4796 wrote to memory of 1948	4796	RdrCEF.exe	95
PID 4796 wrote to memory of 1948	4796	RdrCEF.exe	95
PID 4796 wrote to memory of 1948	4796	RdrCEF.exe	95
PID 4796 wrote to memory of 1948	4796	RdrCEF.exe	95
PID 4796 wrote to memory of 1948	4796	RdrCEF.exe	95
PID 4796 wrote to memory of 1948	4796	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\Estv-06-2025-ZTCFHbwEsD.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:4416
- 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:4796
- - 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=F24ADAFD27872E08AD6330ABD477AB86 --mojo-platform-channel-handle=1740 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:5108
- - 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=225FC2FDC23249C19990A89410C1A05B --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=225FC2FDC23249C19990A89410C1A05B --renderer-client-id=2 --mojo-platform-channel-handle=1764 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:1948
- - 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=B1415DF931D27B95CFC3845123A42E42 --mojo-platform-channel-handle=2284 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2236
- - 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=CA77FA23A94D439E7FB9CBA213E3EE9F --mojo-platform-channel-handle=1924 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2172
- - 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=57B45692C0EECA7BF05393EDD3006FE4 --mojo-platform-channel-handle=2280 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3944
- - 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=122664B76D069A088D8AF59B9AE89937 --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=122664B76D069A088D8AF59B9AE89937 --renderer-client-id=7 --mojo-platform-channel-handle=2444 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:436

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:1264

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
2752628b15fc51254c2dbaaecebf9ce0

SHA1
0e917b5e9134c5e9a60c9320a095bd7bb2e0d146

SHA256
89347a9ad6917a8a78f7891dd48c92b81f4b664cbf4fd87b185bc2d8d61bca6b

SHA512
73ec32e41fb631065d14d1afc5b869703cc7ada4b068414b16b0e8ddfedb515ca33862cf8d4d4ce766751658879a1dc9dc4db416aff95ca699e661ebca815a04

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