047dbbbbdfefcde79f10f5b47d91c4265b39fc4dea7f8507fe0d3d8a47a6cf2c

Analysis

max time kernel
132s
max time network
138s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
02/06/2024, 07:23

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General

Target
Sitzungseinladung SK 2024-07-05.pdf
Size 101KB
Sample240602-h7139sfd78
SHA256 047dbbbbdfefcde79f10f5b47d91c4265b39fc4dea7f8507fe0d3d8a47a6cf2c
MD5 2314e2b73bf1dd3e66c1b3a28179ceec
SHA1 f354a276ff11ddb052b145372137da5216cc6bf0
SHA512 e08a0bd04a0b67d4ccb61be2449b47417b1db3b9942e230cdfc33d061dd06aee4c5139689a5f2229d74e5cf9a567386176b0301794c94dfaccea6ca91a3ca42c
SSDEEP 3072:iMNwdaEMgwiM5dgb9pmoELf0XQ1f+OeRZYR:/1PiMjgb9lEQQ1f+OeRZ+
MD5 SHA1 SHA512 SSDEEP

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-1-5-21-3558294865-3673844354-2255444939-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
4472	AcroRd32.exe
4472	AcroRd32.exe
4472	AcroRd32.exe
4472	AcroRd32.exe
4472	AcroRd32.exe
4472	AcroRd32.exe
4472	AcroRd32.exe
4472	AcroRd32.exe
4472	AcroRd32.exe
4472	AcroRd32.exe
4472	AcroRd32.exe
4472	AcroRd32.exe
4472	AcroRd32.exe
4472	AcroRd32.exe
4472	AcroRd32.exe
4472	AcroRd32.exe
4472	AcroRd32.exe
4472	AcroRd32.exe
4472	AcroRd32.exe
4472	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4472	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
4472	AcroRd32.exe
4472	AcroRd32.exe
4472	AcroRd32.exe
4472	AcroRd32.exe
4472	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4472 wrote to memory of 2696	4472	AcroRd32.exe	92
PID 4472 wrote to memory of 2696	4472	AcroRd32.exe	92
PID 4472 wrote to memory of 2696	4472	AcroRd32.exe	92
PID 2696 wrote to memory of 3392	2696	RdrCEF.exe	93
PID 2696 wrote to memory of 3392	2696	RdrCEF.exe	93
PID 2696 wrote to memory of 3392	2696	RdrCEF.exe	93
PID 2696 wrote to memory of 3392	2696	RdrCEF.exe	93
PID 2696 wrote to memory of 3392	2696	RdrCEF.exe	93
PID 2696 wrote to memory of 3392	2696	RdrCEF.exe	93
PID 2696 wrote to memory of 3392	2696	RdrCEF.exe	93
PID 2696 wrote to memory of 3392	2696	RdrCEF.exe	93
PID 2696 wrote to memory of 3392	2696	RdrCEF.exe	93
PID 2696 wrote to memory of 3392	2696	RdrCEF.exe	93
PID 2696 wrote to memory of 3392	2696	RdrCEF.exe	93
PID 2696 wrote to memory of 3392	2696	RdrCEF.exe	93
PID 2696 wrote to memory of 3392	2696	RdrCEF.exe	93
PID 2696 wrote to memory of 3392	2696	RdrCEF.exe	93
PID 2696 wrote to memory of 3392	2696	RdrCEF.exe	93
PID 2696 wrote to memory of 3392	2696	RdrCEF.exe	93
PID 2696 wrote to memory of 3392	2696	RdrCEF.exe	93
PID 2696 wrote to memory of 3392	2696	RdrCEF.exe	93
PID 2696 wrote to memory of 3392	2696	RdrCEF.exe	93
PID 2696 wrote to memory of 3392	2696	RdrCEF.exe	93
PID 2696 wrote to memory of 3392	2696	RdrCEF.exe	93
PID 2696 wrote to memory of 3392	2696	RdrCEF.exe	93
PID 2696 wrote to memory of 3392	2696	RdrCEF.exe	93
PID 2696 wrote to memory of 3392	2696	RdrCEF.exe	93
PID 2696 wrote to memory of 3392	2696	RdrCEF.exe	93
PID 2696 wrote to memory of 3392	2696	RdrCEF.exe	93
PID 2696 wrote to memory of 3392	2696	RdrCEF.exe	93
PID 2696 wrote to memory of 3392	2696	RdrCEF.exe	93
PID 2696 wrote to memory of 3392	2696	RdrCEF.exe	93
PID 2696 wrote to memory of 3392	2696	RdrCEF.exe	93
PID 2696 wrote to memory of 3392	2696	RdrCEF.exe	93
PID 2696 wrote to memory of 3392	2696	RdrCEF.exe	93
PID 2696 wrote to memory of 3392	2696	RdrCEF.exe	93
PID 2696 wrote to memory of 3392	2696	RdrCEF.exe	93
PID 2696 wrote to memory of 3392	2696	RdrCEF.exe	93
PID 2696 wrote to memory of 3392	2696	RdrCEF.exe	93
PID 2696 wrote to memory of 3392	2696	RdrCEF.exe	93
PID 2696 wrote to memory of 3392	2696	RdrCEF.exe	93
PID 2696 wrote to memory of 3392	2696	RdrCEF.exe	93
PID 2696 wrote to memory of 3392	2696	RdrCEF.exe	93
PID 2696 wrote to memory of 3392	2696	RdrCEF.exe	93
PID 2696 wrote to memory of 1496	2696	RdrCEF.exe	94
PID 2696 wrote to memory of 1496	2696	RdrCEF.exe	94
PID 2696 wrote to memory of 1496	2696	RdrCEF.exe	94
PID 2696 wrote to memory of 1496	2696	RdrCEF.exe	94
PID 2696 wrote to memory of 1496	2696	RdrCEF.exe	94
PID 2696 wrote to memory of 1496	2696	RdrCEF.exe	94
PID 2696 wrote to memory of 1496	2696	RdrCEF.exe	94
PID 2696 wrote to memory of 1496	2696	RdrCEF.exe	94
PID 2696 wrote to memory of 1496	2696	RdrCEF.exe	94
PID 2696 wrote to memory of 1496	2696	RdrCEF.exe	94
PID 2696 wrote to memory of 1496	2696	RdrCEF.exe	94
PID 2696 wrote to memory of 1496	2696	RdrCEF.exe	94
PID 2696 wrote to memory of 1496	2696	RdrCEF.exe	94
PID 2696 wrote to memory of 1496	2696	RdrCEF.exe	94
PID 2696 wrote to memory of 1496	2696	RdrCEF.exe	94
PID 2696 wrote to memory of 1496	2696	RdrCEF.exe	94
PID 2696 wrote to memory of 1496	2696	RdrCEF.exe	94
PID 2696 wrote to memory of 1496	2696	RdrCEF.exe	94
PID 2696 wrote to memory of 1496	2696	RdrCEF.exe	94
PID 2696 wrote to memory of 1496	2696	RdrCEF.exe	94

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\Sitzungseinladung SK 2024-07-05.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:4472
- 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:2696
- - 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=6733EEBE15F0F31EF1E220CDC7C250D2 --mojo-platform-channel-handle=1748 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3392
- - 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=C246EE8147A9A982B273AECC9E806119 --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=C246EE8147A9A982B273AECC9E806119 --renderer-client-id=2 --mojo-platform-channel-handle=1740 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:1496
- - 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=FFFB5CBBA919B3A0068E839E9C1F9B00 --mojo-platform-channel-handle=2336 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1352
- - 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=6FD1BF038CB46CCFAC6BC94A6529E772 --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=6FD1BF038CB46CCFAC6BC94A6529E772 --renderer-client-id=5 --mojo-platform-channel-handle=2316 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:3592
- - 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=C44E083867CDF02705A84735C17081FA --mojo-platform-channel-handle=2656 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1564
- - 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=03F4FA9C89B858BEB6AFB768E71810AB --mojo-platform-channel-handle=1724 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4440

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:3836

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

ReaderMessages

Path C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\ReaderMessages
Size 64KB
SHA256 ecaf98fc497e5ad6a75867a57eea435cbc5705a4b05c1d43276b1db12b8f8d96
MD5 afe24dfc3e3596cd2897cb2958396869
SHA1 9ae1e9b67eb6105f7874ae890a3ff1897de52a2b
SHA512 4f028ea2ae9b141562098c3a5ed74857ef8ca6b37901f911b93abdffa96b5bd0ed92a162c2c109118556fe554681c7b90bb9ebcf5365da5c1220008a6ce6982b
SSDEEP 384:yefdThatELJ8SWvDTGJCesZsLglKhubvGZsLRZh+vS4:q+elZsLQCZsL3hUS4
MD5 SHA1 SHA512 SSDEEP

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ReaderMessages

Path C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\ReaderMessages
Size 36KB
SHA256 b1b77e96279ead2b460de3de70e2ea4f5ad1b853598a4e27a5caf3f1a32cc4f3
MD5 b30d3becc8731792523d599d949e63f5
SHA1 19350257e42d7aee17fb3bf139a9d3adb330fad4
SHA512 523f54895fb07f62b9a5f72c8b62e83d4d9506bda57b183818615f6eb7286e3b9c5a50409bc5c5164867c3ccdeae88aa395ecca6bc7e36d991552f857510792e
SSDEEP 24:TLiXlzkrFsgIFsxX3pALXmnHpkDGjmcxBSkomXk+2m9RFTsyg+wmf9Mzm+Zs3tGl:TqlmFTIF3XmHjBoGGR+jMz+LhT
MD5 SHA1 SHA512 SSDEEP

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ReaderMessages

Path C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\ReaderMessages
Size 56KB
SHA256 111dac2948e4cecb10b0d2e10d8afaa663d78d643826b592d6414a1fd77cc131
MD5 752a1f26b18748311b691c7d8fc20633
SHA1 c1f8e83eebc1cc1e9b88c773338eb09ff82ab862
SHA512 a2f5f262faf2c3e9756da94b2c47787ce3a9391b5bd53581578aa9a764449e114836704d6dec4aadc097fed4c818831baa11affa1eb25be2bfad9349bb090fe5
SSDEEP 192:wedRBvVrThe4p4/KhTB4p4CitZtkZsLRGVDbw6H3ph+v3YQa9:weZdThkKhBvkZsLRGlzh+vS9
MD5 SHA1 SHA512 SSDEEP

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