4c76adfe548eabd67f8734f3b84e9d96d5ca84501295b37a546222c69263eba0

Analysis

max time kernel
141s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
04-02-2024 12:33

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General

Target

8f28db417fcd133bca8d5d614f3c1ad6.pdf
Size

110KB
MD5

8f28db417fcd133bca8d5d614f3c1ad6
SHA1

6e135818e325254d0e5a3b27e619ec3e684f5721
SHA256

4c76adfe548eabd67f8734f3b84e9d96d5ca84501295b37a546222c69263eba0
SHA512

4fcd589d517bc9df218d83cd8f059f7e1d6e4173461e06b50068fdb8a01750ced8ae39d6fe69e9466125b26444d95a04cf9b714f632a558f6f00cacef84af9de
SSDEEP

3072:76CmDZo9TX2Moe/298ixH8+/d2CP8qzapQaZreahHr:mCqZo9yMoeu9Dxcw1P8qethL

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-1-5-21-3803511929-1339359695-2191195476-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
2336	AcroRd32.exe
2336	AcroRd32.exe
2336	AcroRd32.exe
2336	AcroRd32.exe
2336	AcroRd32.exe
2336	AcroRd32.exe
2336	AcroRd32.exe
2336	AcroRd32.exe
2336	AcroRd32.exe
2336	AcroRd32.exe
2336	AcroRd32.exe
2336	AcroRd32.exe
2336	AcroRd32.exe
2336	AcroRd32.exe
2336	AcroRd32.exe
2336	AcroRd32.exe
2336	AcroRd32.exe
2336	AcroRd32.exe
2336	AcroRd32.exe
2336	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2336	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
2336	AcroRd32.exe
2336	AcroRd32.exe
2336	AcroRd32.exe
2336	AcroRd32.exe
2336	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2336 wrote to memory of 3992	2336	AcroRd32.exe	92
PID 2336 wrote to memory of 3992	2336	AcroRd32.exe	92
PID 2336 wrote to memory of 3992	2336	AcroRd32.exe	92
PID 3992 wrote to memory of 3676	3992	RdrCEF.exe	94
PID 3992 wrote to memory of 3676	3992	RdrCEF.exe	94
PID 3992 wrote to memory of 3676	3992	RdrCEF.exe	94
PID 3992 wrote to memory of 3676	3992	RdrCEF.exe	94
PID 3992 wrote to memory of 3676	3992	RdrCEF.exe	94
PID 3992 wrote to memory of 3676	3992	RdrCEF.exe	94
PID 3992 wrote to memory of 3676	3992	RdrCEF.exe	94
PID 3992 wrote to memory of 3676	3992	RdrCEF.exe	94
PID 3992 wrote to memory of 3676	3992	RdrCEF.exe	94
PID 3992 wrote to memory of 3676	3992	RdrCEF.exe	94
PID 3992 wrote to memory of 3676	3992	RdrCEF.exe	94
PID 3992 wrote to memory of 3676	3992	RdrCEF.exe	94
PID 3992 wrote to memory of 3676	3992	RdrCEF.exe	94
PID 3992 wrote to memory of 3676	3992	RdrCEF.exe	94
PID 3992 wrote to memory of 3676	3992	RdrCEF.exe	94
PID 3992 wrote to memory of 3676	3992	RdrCEF.exe	94
PID 3992 wrote to memory of 3676	3992	RdrCEF.exe	94
PID 3992 wrote to memory of 3676	3992	RdrCEF.exe	94
PID 3992 wrote to memory of 3676	3992	RdrCEF.exe	94
PID 3992 wrote to memory of 3676	3992	RdrCEF.exe	94
PID 3992 wrote to memory of 3676	3992	RdrCEF.exe	94
PID 3992 wrote to memory of 3676	3992	RdrCEF.exe	94
PID 3992 wrote to memory of 3676	3992	RdrCEF.exe	94
PID 3992 wrote to memory of 3676	3992	RdrCEF.exe	94
PID 3992 wrote to memory of 3676	3992	RdrCEF.exe	94
PID 3992 wrote to memory of 3676	3992	RdrCEF.exe	94
PID 3992 wrote to memory of 3676	3992	RdrCEF.exe	94
PID 3992 wrote to memory of 3676	3992	RdrCEF.exe	94
PID 3992 wrote to memory of 3676	3992	RdrCEF.exe	94
PID 3992 wrote to memory of 3676	3992	RdrCEF.exe	94
PID 3992 wrote to memory of 3676	3992	RdrCEF.exe	94
PID 3992 wrote to memory of 3676	3992	RdrCEF.exe	94
PID 3992 wrote to memory of 3676	3992	RdrCEF.exe	94
PID 3992 wrote to memory of 3676	3992	RdrCEF.exe	94
PID 3992 wrote to memory of 3676	3992	RdrCEF.exe	94
PID 3992 wrote to memory of 3676	3992	RdrCEF.exe	94
PID 3992 wrote to memory of 3676	3992	RdrCEF.exe	94
PID 3992 wrote to memory of 3676	3992	RdrCEF.exe	94
PID 3992 wrote to memory of 3676	3992	RdrCEF.exe	94
PID 3992 wrote to memory of 3676	3992	RdrCEF.exe	94
PID 3992 wrote to memory of 3676	3992	RdrCEF.exe	94
PID 3992 wrote to memory of 2832	3992	RdrCEF.exe	93
PID 3992 wrote to memory of 2832	3992	RdrCEF.exe	93
PID 3992 wrote to memory of 2832	3992	RdrCEF.exe	93
PID 3992 wrote to memory of 2832	3992	RdrCEF.exe	93
PID 3992 wrote to memory of 2832	3992	RdrCEF.exe	93
PID 3992 wrote to memory of 2832	3992	RdrCEF.exe	93
PID 3992 wrote to memory of 2832	3992	RdrCEF.exe	93
PID 3992 wrote to memory of 2832	3992	RdrCEF.exe	93
PID 3992 wrote to memory of 2832	3992	RdrCEF.exe	93
PID 3992 wrote to memory of 2832	3992	RdrCEF.exe	93
PID 3992 wrote to memory of 2832	3992	RdrCEF.exe	93
PID 3992 wrote to memory of 2832	3992	RdrCEF.exe	93
PID 3992 wrote to memory of 2832	3992	RdrCEF.exe	93
PID 3992 wrote to memory of 2832	3992	RdrCEF.exe	93
PID 3992 wrote to memory of 2832	3992	RdrCEF.exe	93
PID 3992 wrote to memory of 2832	3992	RdrCEF.exe	93
PID 3992 wrote to memory of 2832	3992	RdrCEF.exe	93
PID 3992 wrote to memory of 2832	3992	RdrCEF.exe	93
PID 3992 wrote to memory of 2832	3992	RdrCEF.exe	93
PID 3992 wrote to memory of 2832	3992	RdrCEF.exe	93

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\8f28db417fcd133bca8d5d614f3c1ad6.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:2336
- 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:3992
- - 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=C509629AD56E79B4A71EF9386F071110 --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=C509629AD56E79B4A71EF9386F071110 --renderer-client-id=2 --mojo-platform-channel-handle=1764 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:2832
- - 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=9DC4B7FBF9184145F5EF1B3394A1E887 --mojo-platform-channel-handle=1740 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3676
- - 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=5458FC7F13D858DD6A67E88EED111875 --mojo-platform-channel-handle=2184 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3856
- - 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=036B0C2FE4356EBD74B66A9786F01FA6 --mojo-platform-channel-handle=1944 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4616
- - 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=98323E91290CB8191A8877267428E278 --mojo-platform-channel-handle=2180 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:5004
- - 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=0D93F5286C9A08EA63FBDA9401A4D5AA --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=0D93F5286C9A08EA63FBDA9401A4D5AA --renderer-client-id=7 --mojo-platform-channel-handle=2568 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4868

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:2044

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
4b57e2588bc67a3015e404a6dd151693

SHA1
db515be968a17a3ef6424960bdc43970f0a4ce73

SHA256
80d8454a878f02eac21f19cc66561519b3e6b85c9be8fca675f3c65c6d420a10

SHA512
dda726ade29166caa0fa332096dd01031f77b2e9628cd0dd6cdb8967e294d91801b4151b4b6d36e06f66a8bc4dfa232f687931a9f5a4d106008abe1c3d7e1bdf

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