965616976ed28bffd24f8316ba6bad5d6008dc511c757643f038bc6c57c37e2b

Analysis

max time kernel
150s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
18-04-2024 21:44

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General

Target

problem.pdf
Size

6KB
MD5

992c39d1f34365f56d8893d6dc083a3b
SHA1

79a758dd8d1564ea275ae7fc0a7f776b2faa868d
SHA256

3be2e406ecb6df8e673ad9cdea5a2c88bd0563f4e091cce8252b6c713ed52987
SHA512

c9ab365079aa697b538b6f1655bac8b04de3bb029d2fe0f4da3acbaecc6aa159002b7f580b2ae79997cd58c4471744a096ab143de28fd83d185604d09b713ce6
SSDEEP

192:+TNfT8QlZvY6paNEusp2W0b28/PLHBqYFaaSHVVKvDG:+JfAQl+DsghLh1jS6G

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-1-5-21-2177723727-746291240-1644359950-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
3268	AcroRd32.exe
3268	AcroRd32.exe
3268	AcroRd32.exe
3268	AcroRd32.exe
3268	AcroRd32.exe
3268	AcroRd32.exe
3268	AcroRd32.exe
3268	AcroRd32.exe
3268	AcroRd32.exe
3268	AcroRd32.exe
3268	AcroRd32.exe
3268	AcroRd32.exe
3268	AcroRd32.exe
3268	AcroRd32.exe
3268	AcroRd32.exe
3268	AcroRd32.exe
3268	AcroRd32.exe
3268	AcroRd32.exe
3268	AcroRd32.exe
3268	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3268	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
3268	AcroRd32.exe
3268	AcroRd32.exe
3268	AcroRd32.exe
3268	AcroRd32.exe
3268	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 3268 wrote to memory of 4976	3268	AcroRd32.exe	89
PID 3268 wrote to memory of 4976	3268	AcroRd32.exe	89
PID 3268 wrote to memory of 4976	3268	AcroRd32.exe	89
PID 4976 wrote to memory of 1608	4976	RdrCEF.exe	90
PID 4976 wrote to memory of 1608	4976	RdrCEF.exe	90
PID 4976 wrote to memory of 1608	4976	RdrCEF.exe	90
PID 4976 wrote to memory of 1608	4976	RdrCEF.exe	90
PID 4976 wrote to memory of 1608	4976	RdrCEF.exe	90
PID 4976 wrote to memory of 1608	4976	RdrCEF.exe	90
PID 4976 wrote to memory of 1608	4976	RdrCEF.exe	90
PID 4976 wrote to memory of 1608	4976	RdrCEF.exe	90
PID 4976 wrote to memory of 1608	4976	RdrCEF.exe	90
PID 4976 wrote to memory of 1608	4976	RdrCEF.exe	90
PID 4976 wrote to memory of 1608	4976	RdrCEF.exe	90
PID 4976 wrote to memory of 1608	4976	RdrCEF.exe	90
PID 4976 wrote to memory of 1608	4976	RdrCEF.exe	90
PID 4976 wrote to memory of 1608	4976	RdrCEF.exe	90
PID 4976 wrote to memory of 1608	4976	RdrCEF.exe	90
PID 4976 wrote to memory of 1608	4976	RdrCEF.exe	90
PID 4976 wrote to memory of 1608	4976	RdrCEF.exe	90
PID 4976 wrote to memory of 1608	4976	RdrCEF.exe	90
PID 4976 wrote to memory of 1608	4976	RdrCEF.exe	90
PID 4976 wrote to memory of 1608	4976	RdrCEF.exe	90
PID 4976 wrote to memory of 1608	4976	RdrCEF.exe	90
PID 4976 wrote to memory of 1608	4976	RdrCEF.exe	90
PID 4976 wrote to memory of 1608	4976	RdrCEF.exe	90
PID 4976 wrote to memory of 1608	4976	RdrCEF.exe	90
PID 4976 wrote to memory of 1608	4976	RdrCEF.exe	90
PID 4976 wrote to memory of 1608	4976	RdrCEF.exe	90
PID 4976 wrote to memory of 1608	4976	RdrCEF.exe	90
PID 4976 wrote to memory of 1608	4976	RdrCEF.exe	90
PID 4976 wrote to memory of 1608	4976	RdrCEF.exe	90
PID 4976 wrote to memory of 1608	4976	RdrCEF.exe	90
PID 4976 wrote to memory of 1608	4976	RdrCEF.exe	90
PID 4976 wrote to memory of 1608	4976	RdrCEF.exe	90
PID 4976 wrote to memory of 1608	4976	RdrCEF.exe	90
PID 4976 wrote to memory of 1608	4976	RdrCEF.exe	90
PID 4976 wrote to memory of 1608	4976	RdrCEF.exe	90
PID 4976 wrote to memory of 1608	4976	RdrCEF.exe	90
PID 4976 wrote to memory of 1608	4976	RdrCEF.exe	90
PID 4976 wrote to memory of 1608	4976	RdrCEF.exe	90
PID 4976 wrote to memory of 1608	4976	RdrCEF.exe	90
PID 4976 wrote to memory of 1608	4976	RdrCEF.exe	90
PID 4976 wrote to memory of 1608	4976	RdrCEF.exe	90
PID 4976 wrote to memory of 5028	4976	RdrCEF.exe	91
PID 4976 wrote to memory of 5028	4976	RdrCEF.exe	91
PID 4976 wrote to memory of 5028	4976	RdrCEF.exe	91
PID 4976 wrote to memory of 5028	4976	RdrCEF.exe	91
PID 4976 wrote to memory of 5028	4976	RdrCEF.exe	91
PID 4976 wrote to memory of 5028	4976	RdrCEF.exe	91
PID 4976 wrote to memory of 5028	4976	RdrCEF.exe	91
PID 4976 wrote to memory of 5028	4976	RdrCEF.exe	91
PID 4976 wrote to memory of 5028	4976	RdrCEF.exe	91
PID 4976 wrote to memory of 5028	4976	RdrCEF.exe	91
PID 4976 wrote to memory of 5028	4976	RdrCEF.exe	91
PID 4976 wrote to memory of 5028	4976	RdrCEF.exe	91
PID 4976 wrote to memory of 5028	4976	RdrCEF.exe	91
PID 4976 wrote to memory of 5028	4976	RdrCEF.exe	91
PID 4976 wrote to memory of 5028	4976	RdrCEF.exe	91
PID 4976 wrote to memory of 5028	4976	RdrCEF.exe	91
PID 4976 wrote to memory of 5028	4976	RdrCEF.exe	91
PID 4976 wrote to memory of 5028	4976	RdrCEF.exe	91
PID 4976 wrote to memory of 5028	4976	RdrCEF.exe	91
PID 4976 wrote to memory of 5028	4976	RdrCEF.exe	91

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\problem.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:3268
- 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:4976
- - 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=63C2DACF084DC90AA7E0943F10F67AEA --mojo-platform-channel-handle=1740 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1608
- - 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=E1434DF6AAB78B92DBED7C3AD638BD0A --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=E1434DF6AAB78B92DBED7C3AD638BD0A --renderer-client-id=2 --mojo-platform-channel-handle=1748 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:5028
- - 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=8768D1C9A49C32FA7073EC68D5E5EF8A --mojo-platform-channel-handle=2304 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4852
- - 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=DC60B0125BDF24215ACA5BC80B4F2CBE --mojo-platform-channel-handle=1944 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2384
- - 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=BFE72A5E2AD600DB02BF16DF8CFBFD26 --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=BFE72A5E2AD600DB02BF16DF8CFBFD26 --renderer-client-id=6 --mojo-platform-channel-handle=2320 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4500
- - 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=9D4AE7F81823701A1A69CED7B3178F3A --mojo-platform-channel-handle=1820 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:560

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:4360

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
2ba5b3ee7d778a532d770fba3c4ebd03

SHA1
c1e4d2fdba8cc67a631ad19f695f9949fe50fc8e

SHA256
407c66a82f2c23a9bf2a04c20b5920397812ad29a02ce277e2c304536390209a

SHA512
9d40ec58ce41cab544ca6478670f154d078dfa46b968dadb3f3c29d5e72b8d4c87dc5c7933d1cfb2341d3629c63b5d100f58c80c77d6135a02b04109cd80b034

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