30b03cf34d57723a3fb9eff8f0699810c4cb9a077fa75d77c723748d4768ae06

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
03/02/2024, 02:09

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General

Target
8b1e73689bb77ff0c898c88f1b0c4db5.pdf
Size 84KB
Sample240203-clarasghcr
SHA256 30b03cf34d57723a3fb9eff8f0699810c4cb9a077fa75d77c723748d4768ae06
MD5 8b1e73689bb77ff0c898c88f1b0c4db5
SHA1 38332c401fb9cf8f4be6eab7897e0337927ee00b
SHA512 c824d4059110d572cb262c75165dd345ac13557079ec122ba8186f33f17859e880511f7f2f89498a2bc9f774bea20859d9a56bbb37a8d5f57479ed315f437a33
SSDEEP 1536:ZD9yKbOoaOj45+HUsuyvZYtqpD9PQsqwzd9aGi8TZ80XYVwenD4:l9Xwa45HEZ1DSJGiUZ8IYVwYD4
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-1-5-21-1168293393-3419776239-306423207-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
4792	AcroRd32.exe
4792	AcroRd32.exe
4792	AcroRd32.exe
4792	AcroRd32.exe
4792	AcroRd32.exe
4792	AcroRd32.exe
4792	AcroRd32.exe
4792	AcroRd32.exe
4792	AcroRd32.exe
4792	AcroRd32.exe
4792	AcroRd32.exe
4792	AcroRd32.exe
4792	AcroRd32.exe
4792	AcroRd32.exe
4792	AcroRd32.exe
4792	AcroRd32.exe
4792	AcroRd32.exe
4792	AcroRd32.exe
4792	AcroRd32.exe
4792	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4792	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
4792	AcroRd32.exe
4792	AcroRd32.exe
4792	AcroRd32.exe
4792	AcroRd32.exe
4792	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4792 wrote to memory of 208	4792	AcroRd32.exe	92
PID 4792 wrote to memory of 208	4792	AcroRd32.exe	92
PID 4792 wrote to memory of 208	4792	AcroRd32.exe	92
PID 208 wrote to memory of 2824	208	RdrCEF.exe	94
PID 208 wrote to memory of 2824	208	RdrCEF.exe	94
PID 208 wrote to memory of 2824	208	RdrCEF.exe	94
PID 208 wrote to memory of 2824	208	RdrCEF.exe	94
PID 208 wrote to memory of 2824	208	RdrCEF.exe	94
PID 208 wrote to memory of 2824	208	RdrCEF.exe	94
PID 208 wrote to memory of 2824	208	RdrCEF.exe	94
PID 208 wrote to memory of 2824	208	RdrCEF.exe	94
PID 208 wrote to memory of 2824	208	RdrCEF.exe	94
PID 208 wrote to memory of 2824	208	RdrCEF.exe	94
PID 208 wrote to memory of 2824	208	RdrCEF.exe	94
PID 208 wrote to memory of 2824	208	RdrCEF.exe	94
PID 208 wrote to memory of 2824	208	RdrCEF.exe	94
PID 208 wrote to memory of 2824	208	RdrCEF.exe	94
PID 208 wrote to memory of 2824	208	RdrCEF.exe	94
PID 208 wrote to memory of 2824	208	RdrCEF.exe	94
PID 208 wrote to memory of 2824	208	RdrCEF.exe	94
PID 208 wrote to memory of 2824	208	RdrCEF.exe	94
PID 208 wrote to memory of 2824	208	RdrCEF.exe	94
PID 208 wrote to memory of 2824	208	RdrCEF.exe	94
PID 208 wrote to memory of 2824	208	RdrCEF.exe	94
PID 208 wrote to memory of 2824	208	RdrCEF.exe	94
PID 208 wrote to memory of 2824	208	RdrCEF.exe	94
PID 208 wrote to memory of 2824	208	RdrCEF.exe	94
PID 208 wrote to memory of 2824	208	RdrCEF.exe	94
PID 208 wrote to memory of 2824	208	RdrCEF.exe	94
PID 208 wrote to memory of 2824	208	RdrCEF.exe	94
PID 208 wrote to memory of 2824	208	RdrCEF.exe	94
PID 208 wrote to memory of 2824	208	RdrCEF.exe	94
PID 208 wrote to memory of 2824	208	RdrCEF.exe	94
PID 208 wrote to memory of 2824	208	RdrCEF.exe	94
PID 208 wrote to memory of 2824	208	RdrCEF.exe	94
PID 208 wrote to memory of 2824	208	RdrCEF.exe	94
PID 208 wrote to memory of 2824	208	RdrCEF.exe	94
PID 208 wrote to memory of 2824	208	RdrCEF.exe	94
PID 208 wrote to memory of 2824	208	RdrCEF.exe	94
PID 208 wrote to memory of 2824	208	RdrCEF.exe	94
PID 208 wrote to memory of 2824	208	RdrCEF.exe	94
PID 208 wrote to memory of 2824	208	RdrCEF.exe	94
PID 208 wrote to memory of 2824	208	RdrCEF.exe	94
PID 208 wrote to memory of 2824	208	RdrCEF.exe	94
PID 208 wrote to memory of 5088	208	RdrCEF.exe	95
PID 208 wrote to memory of 5088	208	RdrCEF.exe	95
PID 208 wrote to memory of 5088	208	RdrCEF.exe	95
PID 208 wrote to memory of 5088	208	RdrCEF.exe	95
PID 208 wrote to memory of 5088	208	RdrCEF.exe	95
PID 208 wrote to memory of 5088	208	RdrCEF.exe	95
PID 208 wrote to memory of 5088	208	RdrCEF.exe	95
PID 208 wrote to memory of 5088	208	RdrCEF.exe	95
PID 208 wrote to memory of 5088	208	RdrCEF.exe	95
PID 208 wrote to memory of 5088	208	RdrCEF.exe	95
PID 208 wrote to memory of 5088	208	RdrCEF.exe	95
PID 208 wrote to memory of 5088	208	RdrCEF.exe	95
PID 208 wrote to memory of 5088	208	RdrCEF.exe	95
PID 208 wrote to memory of 5088	208	RdrCEF.exe	95
PID 208 wrote to memory of 5088	208	RdrCEF.exe	95
PID 208 wrote to memory of 5088	208	RdrCEF.exe	95
PID 208 wrote to memory of 5088	208	RdrCEF.exe	95
PID 208 wrote to memory of 5088	208	RdrCEF.exe	95
PID 208 wrote to memory of 5088	208	RdrCEF.exe	95
PID 208 wrote to memory of 5088	208	RdrCEF.exe	95

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\8b1e73689bb77ff0c898c88f1b0c4db5.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:4792
- 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:208
- - 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=749B0B4CC72595928F9AA041BB324457 --mojo-platform-channel-handle=1744 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2824
- - 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=6F20BF873A7A818BDA1FBE7D0D83EF5B --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=6F20BF873A7A818BDA1FBE7D0D83EF5B --renderer-client-id=2 --mojo-platform-channel-handle=1764 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:5088
- - 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=BC64B51C33EE14EC44E09E9412458FF2 --mojo-platform-channel-handle=2276 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:912
- - 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=F8FB867281AEDFCFC371FB28C2A5FE02 --mojo-platform-channel-handle=1940 --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=EB22EEE9304A6F695DF63FE3964D8706 --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=EB22EEE9304A6F695DF63FE3964D8706 --renderer-client-id=6 --mojo-platform-channel-handle=2364 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:1252
- - 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=CDE3695C91E5E7EFDF18E40C0492DE29 --mojo-platform-channel-handle=2692 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2784

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:2808

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 c87216c9545e05f8e6af7aef3bc7ecf03bc63c571c5b02ba917b501f082d2a3e
MD5 7cb6c3612a169fa73db43316801d1e0c
SHA1 9f32ca370c2d7b40fc4983560bebc9c0f3514f42
SHA512 db88fce4acc73c4badf2068213ba87d8a161ddf5557c0ed45141442e19dcef98fab40c56ac314ba0d27178fd423b63c30b1284b3c51cc63a77c1c6356c4d16e5
SSDEEP 384:yeFdThatELJ8SWvDTGJCesZsLglKhubvGZsLRZh+vS4:8+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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