57627011f37449e22112f5b02c00e5dc3b912de5940608731cc43b42ba99bbc7

Analysis

max time kernel
50s
max time network
58s
platform
windows11-21h2_x64
resource
win11-20240221-en
resource tags

arch:x64arch:x86image:win11-20240221-enlocale:en-usos:windows11-21h2-x64system
submitted
06-03-2024 16:08

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General

Target

2403-133992.pdf
Size

155KB
MD5

1638fa55c603b18e7d32c6a94c87f66e
SHA1

cbda0e8c86f86caa149993607cd172de3a0aac6b
SHA256

57627011f37449e22112f5b02c00e5dc3b912de5940608731cc43b42ba99bbc7
SHA512

f1a03dabb559ef34174fb6f9f96d595db96f16859ce91fd4c2447087fa08bd73989070806eecfa034ac19a43e529d0bdf5394a98576fb307e28ee13fe40c64fc
SSDEEP

3072:/4rTBMrpm26DPgjwdGre6idE+r6M3Qs4uqHLuDGe:/4TBeme0Yrhid5N3QXuqHLoGe

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-1-5-21-3594324687-1993884830-4019639329-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
2280	AcroRd32.exe
2280	AcroRd32.exe
2280	AcroRd32.exe
2280	AcroRd32.exe
2280	AcroRd32.exe
2280	AcroRd32.exe
2280	AcroRd32.exe
2280	AcroRd32.exe
2280	AcroRd32.exe
2280	AcroRd32.exe
2280	AcroRd32.exe
2280	AcroRd32.exe
2280	AcroRd32.exe
2280	AcroRd32.exe
2280	AcroRd32.exe
2280	AcroRd32.exe
2280	AcroRd32.exe
2280	AcroRd32.exe
2280	AcroRd32.exe
2280	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2280	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
2280	AcroRd32.exe
2280	AcroRd32.exe
2280	AcroRd32.exe
2280	AcroRd32.exe
2280	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2280 wrote to memory of 2856	2280	AcroRd32.exe	81
PID 2280 wrote to memory of 2856	2280	AcroRd32.exe	81
PID 2280 wrote to memory of 2856	2280	AcroRd32.exe	81
PID 2856 wrote to memory of 4404	2856	RdrCEF.exe	82
PID 2856 wrote to memory of 4404	2856	RdrCEF.exe	82
PID 2856 wrote to memory of 4404	2856	RdrCEF.exe	82
PID 2856 wrote to memory of 4404	2856	RdrCEF.exe	82
PID 2856 wrote to memory of 4404	2856	RdrCEF.exe	82
PID 2856 wrote to memory of 4404	2856	RdrCEF.exe	82
PID 2856 wrote to memory of 4404	2856	RdrCEF.exe	82
PID 2856 wrote to memory of 4404	2856	RdrCEF.exe	82
PID 2856 wrote to memory of 4404	2856	RdrCEF.exe	82
PID 2856 wrote to memory of 4404	2856	RdrCEF.exe	82
PID 2856 wrote to memory of 4404	2856	RdrCEF.exe	82
PID 2856 wrote to memory of 4404	2856	RdrCEF.exe	82
PID 2856 wrote to memory of 4404	2856	RdrCEF.exe	82
PID 2856 wrote to memory of 4404	2856	RdrCEF.exe	82
PID 2856 wrote to memory of 4404	2856	RdrCEF.exe	82
PID 2856 wrote to memory of 4404	2856	RdrCEF.exe	82
PID 2856 wrote to memory of 4404	2856	RdrCEF.exe	82
PID 2856 wrote to memory of 4404	2856	RdrCEF.exe	82
PID 2856 wrote to memory of 4404	2856	RdrCEF.exe	82
PID 2856 wrote to memory of 4404	2856	RdrCEF.exe	82
PID 2856 wrote to memory of 4404	2856	RdrCEF.exe	82
PID 2856 wrote to memory of 4404	2856	RdrCEF.exe	82
PID 2856 wrote to memory of 4404	2856	RdrCEF.exe	82
PID 2856 wrote to memory of 4404	2856	RdrCEF.exe	82
PID 2856 wrote to memory of 4404	2856	RdrCEF.exe	82
PID 2856 wrote to memory of 4404	2856	RdrCEF.exe	82
PID 2856 wrote to memory of 4404	2856	RdrCEF.exe	82
PID 2856 wrote to memory of 4404	2856	RdrCEF.exe	82
PID 2856 wrote to memory of 4404	2856	RdrCEF.exe	82
PID 2856 wrote to memory of 4404	2856	RdrCEF.exe	82
PID 2856 wrote to memory of 4404	2856	RdrCEF.exe	82
PID 2856 wrote to memory of 4404	2856	RdrCEF.exe	82
PID 2856 wrote to memory of 4404	2856	RdrCEF.exe	82
PID 2856 wrote to memory of 4404	2856	RdrCEF.exe	82
PID 2856 wrote to memory of 4404	2856	RdrCEF.exe	82
PID 2856 wrote to memory of 4404	2856	RdrCEF.exe	82
PID 2856 wrote to memory of 4404	2856	RdrCEF.exe	82
PID 2856 wrote to memory of 4404	2856	RdrCEF.exe	82
PID 2856 wrote to memory of 4404	2856	RdrCEF.exe	82
PID 2856 wrote to memory of 4404	2856	RdrCEF.exe	82
PID 2856 wrote to memory of 4404	2856	RdrCEF.exe	82
PID 2856 wrote to memory of 4836	2856	RdrCEF.exe	83
PID 2856 wrote to memory of 4836	2856	RdrCEF.exe	83
PID 2856 wrote to memory of 4836	2856	RdrCEF.exe	83
PID 2856 wrote to memory of 4836	2856	RdrCEF.exe	83
PID 2856 wrote to memory of 4836	2856	RdrCEF.exe	83
PID 2856 wrote to memory of 4836	2856	RdrCEF.exe	83
PID 2856 wrote to memory of 4836	2856	RdrCEF.exe	83
PID 2856 wrote to memory of 4836	2856	RdrCEF.exe	83
PID 2856 wrote to memory of 4836	2856	RdrCEF.exe	83
PID 2856 wrote to memory of 4836	2856	RdrCEF.exe	83
PID 2856 wrote to memory of 4836	2856	RdrCEF.exe	83
PID 2856 wrote to memory of 4836	2856	RdrCEF.exe	83
PID 2856 wrote to memory of 4836	2856	RdrCEF.exe	83
PID 2856 wrote to memory of 4836	2856	RdrCEF.exe	83
PID 2856 wrote to memory of 4836	2856	RdrCEF.exe	83
PID 2856 wrote to memory of 4836	2856	RdrCEF.exe	83
PID 2856 wrote to memory of 4836	2856	RdrCEF.exe	83
PID 2856 wrote to memory of 4836	2856	RdrCEF.exe	83
PID 2856 wrote to memory of 4836	2856	RdrCEF.exe	83
PID 2856 wrote to memory of 4836	2856	RdrCEF.exe	83

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\2403-133992.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:2280
- 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:2856
- - 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=544536ECA8B4BB11897B4C44D3F61E89 --mojo-platform-channel-handle=1756 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4404
- - 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=3470119731D97DB02D31E4168C1A7FF1 --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=3470119731D97DB02D31E4168C1A7FF1 --renderer-client-id=2 --mojo-platform-channel-handle=1768 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4836
- - 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=AE73594DB5ADBAECF6C8C4D7A8E83699 --mojo-platform-channel-handle=2180 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:860
- - 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=72B97CB8633C7DFDA904F26D201B474D --mojo-platform-channel-handle=2344 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2852
- - 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=67A40470D907E74DF44F6DFE26A9FB83 --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=67A40470D907E74DF44F6DFE26A9FB83 --renderer-client-id=6 --mojo-platform-channel-handle=2540 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4248
- - 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=E71B6E0DBDB592A67F58C2EEA56DA0D8 --mojo-platform-channel-handle=2240 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2748

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:4932

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
44fce5af3d3146e8825230661c19c6d6

SHA1
0ac7a0aa9b50470c23d2993d991739b0501361f2

SHA256
ad930b9c2df7e5174de3d68fafc57bd2d4a050ccf7204b62f149923827ea6ced

SHA512
ec6960a304923bba18f198ac6f13125b8fda54fc8c9615df0f02c248f1315bd9cbe395de42528cac9136dcc1994a682f15f91963b1dbba68f722920b464435e7

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
memory/2280-133-0x000000000AFD0000-0x000000000B27B000-memory.dmp

Filesize
2.7MB

Download
memory/2280-136-0x000000000AB00000-0x000000000AC4D000-memory.dmp

Filesize
1.3MB

Download
memory/2280-141-0x000000000AB00000-0x000000000AC4D000-memory.dmp

Filesize
1.3MB

Download