c4203b11f727364f8c39cbf3b9e7716443177cf5de217d4f99506d54a324e8eb

Analysis

max time kernel
141s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
30-05-2024 17:11

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General

Target

Attachment.pdf
Size

33KB
MD5

10382e5f530bac5c7af4e622131cb6d8
SHA1

84139557ac6359f013c6d34353fe74f8e8248747
SHA256

c4203b11f727364f8c39cbf3b9e7716443177cf5de217d4f99506d54a324e8eb
SHA512

b0a7c052292b7301eed8a3db2d14bbf1ded7a2e744f46097cbe9f7253a8815c0fc96198abd65571773f91b5fb67900bdf4ccc06e72392b7ebc7c769694123f83
SSDEEP

768:WzEljLOHZ3MSX3UO15EgMbRMM+LxaTndB5Wa0A4A1Uyc5/+x:WyAKI3U8G9dMMSYTIa0A4A1wGx

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-1-5-21-3906287020-2915474608-1755617787-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
916	AcroRd32.exe
916	AcroRd32.exe
916	AcroRd32.exe
916	AcroRd32.exe
916	AcroRd32.exe
916	AcroRd32.exe
916	AcroRd32.exe
916	AcroRd32.exe
916	AcroRd32.exe
916	AcroRd32.exe
916	AcroRd32.exe
916	AcroRd32.exe
916	AcroRd32.exe
916	AcroRd32.exe
916	AcroRd32.exe
916	AcroRd32.exe
916	AcroRd32.exe
916	AcroRd32.exe
916	AcroRd32.exe
916	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
916	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
916	AcroRd32.exe
916	AcroRd32.exe
916	AcroRd32.exe
916	AcroRd32.exe
916	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 916 wrote to memory of 5036	916	AcroRd32.exe	89
PID 916 wrote to memory of 5036	916	AcroRd32.exe	89
PID 916 wrote to memory of 5036	916	AcroRd32.exe	89
PID 5036 wrote to memory of 4448	5036	RdrCEF.exe	92
PID 5036 wrote to memory of 4448	5036	RdrCEF.exe	92
PID 5036 wrote to memory of 4448	5036	RdrCEF.exe	92
PID 5036 wrote to memory of 4448	5036	RdrCEF.exe	92
PID 5036 wrote to memory of 4448	5036	RdrCEF.exe	92
PID 5036 wrote to memory of 4448	5036	RdrCEF.exe	92
PID 5036 wrote to memory of 4448	5036	RdrCEF.exe	92
PID 5036 wrote to memory of 4448	5036	RdrCEF.exe	92
PID 5036 wrote to memory of 4448	5036	RdrCEF.exe	92
PID 5036 wrote to memory of 4448	5036	RdrCEF.exe	92
PID 5036 wrote to memory of 4448	5036	RdrCEF.exe	92
PID 5036 wrote to memory of 4448	5036	RdrCEF.exe	92
PID 5036 wrote to memory of 4448	5036	RdrCEF.exe	92
PID 5036 wrote to memory of 4448	5036	RdrCEF.exe	92
PID 5036 wrote to memory of 4448	5036	RdrCEF.exe	92
PID 5036 wrote to memory of 4448	5036	RdrCEF.exe	92
PID 5036 wrote to memory of 4448	5036	RdrCEF.exe	92
PID 5036 wrote to memory of 4448	5036	RdrCEF.exe	92
PID 5036 wrote to memory of 4448	5036	RdrCEF.exe	92
PID 5036 wrote to memory of 4448	5036	RdrCEF.exe	92
PID 5036 wrote to memory of 4448	5036	RdrCEF.exe	92
PID 5036 wrote to memory of 4448	5036	RdrCEF.exe	92
PID 5036 wrote to memory of 4448	5036	RdrCEF.exe	92
PID 5036 wrote to memory of 4448	5036	RdrCEF.exe	92
PID 5036 wrote to memory of 4448	5036	RdrCEF.exe	92
PID 5036 wrote to memory of 4448	5036	RdrCEF.exe	92
PID 5036 wrote to memory of 4448	5036	RdrCEF.exe	92
PID 5036 wrote to memory of 4448	5036	RdrCEF.exe	92
PID 5036 wrote to memory of 4448	5036	RdrCEF.exe	92
PID 5036 wrote to memory of 4448	5036	RdrCEF.exe	92
PID 5036 wrote to memory of 4448	5036	RdrCEF.exe	92
PID 5036 wrote to memory of 4448	5036	RdrCEF.exe	92
PID 5036 wrote to memory of 4448	5036	RdrCEF.exe	92
PID 5036 wrote to memory of 4448	5036	RdrCEF.exe	92
PID 5036 wrote to memory of 4448	5036	RdrCEF.exe	92
PID 5036 wrote to memory of 4448	5036	RdrCEF.exe	92
PID 5036 wrote to memory of 4448	5036	RdrCEF.exe	92
PID 5036 wrote to memory of 4448	5036	RdrCEF.exe	92
PID 5036 wrote to memory of 4448	5036	RdrCEF.exe	92
PID 5036 wrote to memory of 4448	5036	RdrCEF.exe	92
PID 5036 wrote to memory of 4448	5036	RdrCEF.exe	92
PID 5036 wrote to memory of 824	5036	RdrCEF.exe	93
PID 5036 wrote to memory of 824	5036	RdrCEF.exe	93
PID 5036 wrote to memory of 824	5036	RdrCEF.exe	93
PID 5036 wrote to memory of 824	5036	RdrCEF.exe	93
PID 5036 wrote to memory of 824	5036	RdrCEF.exe	93
PID 5036 wrote to memory of 824	5036	RdrCEF.exe	93
PID 5036 wrote to memory of 824	5036	RdrCEF.exe	93
PID 5036 wrote to memory of 824	5036	RdrCEF.exe	93
PID 5036 wrote to memory of 824	5036	RdrCEF.exe	93
PID 5036 wrote to memory of 824	5036	RdrCEF.exe	93
PID 5036 wrote to memory of 824	5036	RdrCEF.exe	93
PID 5036 wrote to memory of 824	5036	RdrCEF.exe	93
PID 5036 wrote to memory of 824	5036	RdrCEF.exe	93
PID 5036 wrote to memory of 824	5036	RdrCEF.exe	93
PID 5036 wrote to memory of 824	5036	RdrCEF.exe	93
PID 5036 wrote to memory of 824	5036	RdrCEF.exe	93
PID 5036 wrote to memory of 824	5036	RdrCEF.exe	93
PID 5036 wrote to memory of 824	5036	RdrCEF.exe	93
PID 5036 wrote to memory of 824	5036	RdrCEF.exe	93
PID 5036 wrote to memory of 824	5036	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\Attachment.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:916
- 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:5036
- - 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=7C4E4F6428887896B4B7783DDEF9F6FE --mojo-platform-channel-handle=1740 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4448
- - 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=B23C2C0FF818C0BAFF7531E348FCF617 --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=B23C2C0FF818C0BAFF7531E348FCF617 --renderer-client-id=2 --mojo-platform-channel-handle=1752 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:824
- - 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=666101CF97DF6D520E89ADC06B81ED54 --mojo-platform-channel-handle=2288 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3684
- - 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=6DEA0B32168A3A66303F935E9D1AC06D --mojo-platform-channel-handle=1928 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3008
- - 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=43F8DB1F212D126075F131FC240969D8 --mojo-platform-channel-handle=1920 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3312
- - 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=705E7DECC708A74D0446D8D8B109EA2D --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=705E7DECC708A74D0446D8D8B109EA2D --renderer-client-id=7 --mojo-platform-channel-handle=1908 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4216

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:3504

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
c0efa9de2688972c3910effbdc7469e2

SHA1
ec6b592a94f637b46a970c5cd4d5eddeef69b4e3

SHA256
9199e5d3ec430337b8f5d1fbfae13f0614e127a8f0e164e41ae28e72a3287080

SHA512
1a54013d030013a0249c5f482cf6f0a9214636054ba298ff30435bb02ceac8c113aa818cd9900e79fa4e823f29ccecd5b708d1dc9a12c3da2e87b8d6386c9f09

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/916-125-0x000000000A5D0000-0x000000000A87B000-memory.dmp

Filesize
2.7MB

Download