2a98a4386823df39279e76ba7a4234301688b88374a8236aa9ef26866d3b1bd5

Analysis

max time kernel
146s
max time network
153s
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 18:33

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General

Target

2a98a4386823df39279e76ba7a4234301688b88374a8236aa9ef26866d3b1bd5.pdf
Size

557KB
MD5

b91231a6d5c43844e1bc2f072a49b65b
SHA1

294ac47c82775e3499e054d08d3ce8dd15075630
SHA256

2a98a4386823df39279e76ba7a4234301688b88374a8236aa9ef26866d3b1bd5
SHA512

931b6203fbc9c0cd49fba77aad5adbaa1850e7a5f1ff2e260364fd6f2bdc1ae8847541ce04fd52feb9885664c4b2976033274a6abcb7b8e65a4bc358c89b1eff
SSDEEP

12288:r8ohrjIaY6nQT3LhHkPdmuJfFsn/wz1mFuV:gOrjInT3GO/M1rV

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-1-5-21-513485977-2495024337-1260977654-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
3796	AcroRd32.exe
3796	AcroRd32.exe
3796	AcroRd32.exe
3796	AcroRd32.exe
3796	AcroRd32.exe
3796	AcroRd32.exe
3796	AcroRd32.exe
3796	AcroRd32.exe
3796	AcroRd32.exe
3796	AcroRd32.exe
3796	AcroRd32.exe
3796	AcroRd32.exe
3796	AcroRd32.exe
3796	AcroRd32.exe
3796	AcroRd32.exe
3796	AcroRd32.exe
3796	AcroRd32.exe
3796	AcroRd32.exe
3796	AcroRd32.exe
3796	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3796	AcroRd32.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
3796	AcroRd32.exe
3796	AcroRd32.exe
3796	AcroRd32.exe
3796	AcroRd32.exe
3796	AcroRd32.exe
3796	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 3796 wrote to memory of 5048	3796	AcroRd32.exe	92
PID 3796 wrote to memory of 5048	3796	AcroRd32.exe	92
PID 3796 wrote to memory of 5048	3796	AcroRd32.exe	92
PID 5048 wrote to memory of 4484	5048	RdrCEF.exe	95
PID 5048 wrote to memory of 4484	5048	RdrCEF.exe	95
PID 5048 wrote to memory of 4484	5048	RdrCEF.exe	95
PID 5048 wrote to memory of 4484	5048	RdrCEF.exe	95
PID 5048 wrote to memory of 4484	5048	RdrCEF.exe	95
PID 5048 wrote to memory of 4484	5048	RdrCEF.exe	95
PID 5048 wrote to memory of 4484	5048	RdrCEF.exe	95
PID 5048 wrote to memory of 4484	5048	RdrCEF.exe	95
PID 5048 wrote to memory of 4484	5048	RdrCEF.exe	95
PID 5048 wrote to memory of 4484	5048	RdrCEF.exe	95
PID 5048 wrote to memory of 4484	5048	RdrCEF.exe	95
PID 5048 wrote to memory of 4484	5048	RdrCEF.exe	95
PID 5048 wrote to memory of 4484	5048	RdrCEF.exe	95
PID 5048 wrote to memory of 4484	5048	RdrCEF.exe	95
PID 5048 wrote to memory of 4484	5048	RdrCEF.exe	95
PID 5048 wrote to memory of 4484	5048	RdrCEF.exe	95
PID 5048 wrote to memory of 4484	5048	RdrCEF.exe	95
PID 5048 wrote to memory of 4484	5048	RdrCEF.exe	95
PID 5048 wrote to memory of 4484	5048	RdrCEF.exe	95
PID 5048 wrote to memory of 4484	5048	RdrCEF.exe	95
PID 5048 wrote to memory of 4484	5048	RdrCEF.exe	95
PID 5048 wrote to memory of 4484	5048	RdrCEF.exe	95
PID 5048 wrote to memory of 4484	5048	RdrCEF.exe	95
PID 5048 wrote to memory of 4484	5048	RdrCEF.exe	95
PID 5048 wrote to memory of 4484	5048	RdrCEF.exe	95
PID 5048 wrote to memory of 4484	5048	RdrCEF.exe	95
PID 5048 wrote to memory of 4484	5048	RdrCEF.exe	95
PID 5048 wrote to memory of 4484	5048	RdrCEF.exe	95
PID 5048 wrote to memory of 4484	5048	RdrCEF.exe	95
PID 5048 wrote to memory of 4484	5048	RdrCEF.exe	95
PID 5048 wrote to memory of 4484	5048	RdrCEF.exe	95
PID 5048 wrote to memory of 4484	5048	RdrCEF.exe	95
PID 5048 wrote to memory of 4484	5048	RdrCEF.exe	95
PID 5048 wrote to memory of 4484	5048	RdrCEF.exe	95
PID 5048 wrote to memory of 4484	5048	RdrCEF.exe	95
PID 5048 wrote to memory of 4484	5048	RdrCEF.exe	95
PID 5048 wrote to memory of 4484	5048	RdrCEF.exe	95
PID 5048 wrote to memory of 4484	5048	RdrCEF.exe	95
PID 5048 wrote to memory of 4484	5048	RdrCEF.exe	95
PID 5048 wrote to memory of 4484	5048	RdrCEF.exe	95
PID 5048 wrote to memory of 4484	5048	RdrCEF.exe	95
PID 5048 wrote to memory of 3412	5048	RdrCEF.exe	96
PID 5048 wrote to memory of 3412	5048	RdrCEF.exe	96
PID 5048 wrote to memory of 3412	5048	RdrCEF.exe	96
PID 5048 wrote to memory of 3412	5048	RdrCEF.exe	96
PID 5048 wrote to memory of 3412	5048	RdrCEF.exe	96
PID 5048 wrote to memory of 3412	5048	RdrCEF.exe	96
PID 5048 wrote to memory of 3412	5048	RdrCEF.exe	96
PID 5048 wrote to memory of 3412	5048	RdrCEF.exe	96
PID 5048 wrote to memory of 3412	5048	RdrCEF.exe	96
PID 5048 wrote to memory of 3412	5048	RdrCEF.exe	96
PID 5048 wrote to memory of 3412	5048	RdrCEF.exe	96
PID 5048 wrote to memory of 3412	5048	RdrCEF.exe	96
PID 5048 wrote to memory of 3412	5048	RdrCEF.exe	96
PID 5048 wrote to memory of 3412	5048	RdrCEF.exe	96
PID 5048 wrote to memory of 3412	5048	RdrCEF.exe	96
PID 5048 wrote to memory of 3412	5048	RdrCEF.exe	96
PID 5048 wrote to memory of 3412	5048	RdrCEF.exe	96
PID 5048 wrote to memory of 3412	5048	RdrCEF.exe	96
PID 5048 wrote to memory of 3412	5048	RdrCEF.exe	96
PID 5048 wrote to memory of 3412	5048	RdrCEF.exe	96

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\2a98a4386823df39279e76ba7a4234301688b88374a8236aa9ef26866d3b1bd5.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:3796
- 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:5048
- - 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=F0F93D021988E451B45889FAD7144B4B --mojo-platform-channel-handle=1740 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4484
- - 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=22E06818857D53ACB8160FDACD91B3AC --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=22E06818857D53ACB8160FDACD91B3AC --renderer-client-id=2 --mojo-platform-channel-handle=1752 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:3412
- - 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=DF18DA43A95044EB30B3F3BF5FAF38B6 --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=DF18DA43A95044EB30B3F3BF5FAF38B6 --renderer-client-id=4 --mojo-platform-channel-handle=2316 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:748
- - 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=BE961AD1DE85CA0C2BCE35972B7628D7 --mojo-platform-channel-handle=2564 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4892
- - 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=03BE7946AD55A028D5A851CC9ED3CDB3 --mojo-platform-channel-handle=1720 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2780
- - 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=42722A51D6C8EA9C8F8E85CBA9DF800E --mojo-platform-channel-handle=1744 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1068

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
0f4c3ac2726ea52305c01b8c43f7fe69

SHA1
491c75966ff36e8fd767867dc95ed2b95f5b2914

SHA256
9bddb24a6d66e1ece44f2b816eb0a470b28c3877ee32c33aa2d421d074a14952

SHA512
d8b885716758e28f90dce8d173567e1aff31c01b619ec4755b2d553e5abb2dca3c317593112498d128413998cf4de9be2fe6d6f0073547d4d4587d33bd67247f

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