26a161558c8c877a1a8f690688ae25126fd15480befd530e20f223097660ae4e

Analysis

max time kernel
141s
max time network
135s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
27-01-2024 02:39

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General

Target

790f286ff3a7e8e94e6080c502eb1fe7.pdf
Size

80KB
MD5

790f286ff3a7e8e94e6080c502eb1fe7
SHA1

fe517e3f5f2d83ad3a6e79766569ae4a8ad684a2
SHA256

26a161558c8c877a1a8f690688ae25126fd15480befd530e20f223097660ae4e
SHA512

b4e40af26ba3e96d449a33f5a5c675de8d43203383bb757df01d82f1155bb65737827df46de30c7c4f99ccd18c669c3a5dc0284186ebef61e519a3f76ee1f998
SSDEEP

1536:hqq2P1auXkpgY4l9JH9xluyLFh368JKG45x7o/j+aWAW/v6rw0pJ4WUpO9fpi:avhtblpT3OG4/72jFcirw0Lb98

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
3376	AcroRd32.exe
3376	AcroRd32.exe
3376	AcroRd32.exe
3376	AcroRd32.exe
3376	AcroRd32.exe
3376	AcroRd32.exe
3376	AcroRd32.exe
3376	AcroRd32.exe
3376	AcroRd32.exe
3376	AcroRd32.exe
3376	AcroRd32.exe
3376	AcroRd32.exe
3376	AcroRd32.exe
3376	AcroRd32.exe
3376	AcroRd32.exe
3376	AcroRd32.exe
3376	AcroRd32.exe
3376	AcroRd32.exe
3376	AcroRd32.exe
3376	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3376	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
3376	AcroRd32.exe
3376	AcroRd32.exe
3376	AcroRd32.exe
3376	AcroRd32.exe
3376	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 3376 wrote to memory of 4068	3376	AcroRd32.exe	90
PID 3376 wrote to memory of 4068	3376	AcroRd32.exe	90
PID 3376 wrote to memory of 4068	3376	AcroRd32.exe	90
PID 4068 wrote to memory of 4836	4068	RdrCEF.exe	92
PID 4068 wrote to memory of 4836	4068	RdrCEF.exe	92
PID 4068 wrote to memory of 4836	4068	RdrCEF.exe	92
PID 4068 wrote to memory of 4836	4068	RdrCEF.exe	92
PID 4068 wrote to memory of 4836	4068	RdrCEF.exe	92
PID 4068 wrote to memory of 4836	4068	RdrCEF.exe	92
PID 4068 wrote to memory of 4836	4068	RdrCEF.exe	92
PID 4068 wrote to memory of 4836	4068	RdrCEF.exe	92
PID 4068 wrote to memory of 4836	4068	RdrCEF.exe	92
PID 4068 wrote to memory of 4836	4068	RdrCEF.exe	92
PID 4068 wrote to memory of 4836	4068	RdrCEF.exe	92
PID 4068 wrote to memory of 4836	4068	RdrCEF.exe	92
PID 4068 wrote to memory of 4836	4068	RdrCEF.exe	92
PID 4068 wrote to memory of 4836	4068	RdrCEF.exe	92
PID 4068 wrote to memory of 4836	4068	RdrCEF.exe	92
PID 4068 wrote to memory of 4836	4068	RdrCEF.exe	92
PID 4068 wrote to memory of 4836	4068	RdrCEF.exe	92
PID 4068 wrote to memory of 4836	4068	RdrCEF.exe	92
PID 4068 wrote to memory of 4836	4068	RdrCEF.exe	92
PID 4068 wrote to memory of 4836	4068	RdrCEF.exe	92
PID 4068 wrote to memory of 4836	4068	RdrCEF.exe	92
PID 4068 wrote to memory of 4836	4068	RdrCEF.exe	92
PID 4068 wrote to memory of 4836	4068	RdrCEF.exe	92
PID 4068 wrote to memory of 4836	4068	RdrCEF.exe	92
PID 4068 wrote to memory of 4836	4068	RdrCEF.exe	92
PID 4068 wrote to memory of 4836	4068	RdrCEF.exe	92
PID 4068 wrote to memory of 4836	4068	RdrCEF.exe	92
PID 4068 wrote to memory of 4836	4068	RdrCEF.exe	92
PID 4068 wrote to memory of 4836	4068	RdrCEF.exe	92
PID 4068 wrote to memory of 4836	4068	RdrCEF.exe	92
PID 4068 wrote to memory of 4836	4068	RdrCEF.exe	92
PID 4068 wrote to memory of 4836	4068	RdrCEF.exe	92
PID 4068 wrote to memory of 4836	4068	RdrCEF.exe	92
PID 4068 wrote to memory of 4836	4068	RdrCEF.exe	92
PID 4068 wrote to memory of 4836	4068	RdrCEF.exe	92
PID 4068 wrote to memory of 4836	4068	RdrCEF.exe	92
PID 4068 wrote to memory of 4836	4068	RdrCEF.exe	92
PID 4068 wrote to memory of 4836	4068	RdrCEF.exe	92
PID 4068 wrote to memory of 4836	4068	RdrCEF.exe	92
PID 4068 wrote to memory of 4836	4068	RdrCEF.exe	92
PID 4068 wrote to memory of 4836	4068	RdrCEF.exe	92
PID 4068 wrote to memory of 4596	4068	RdrCEF.exe	93
PID 4068 wrote to memory of 4596	4068	RdrCEF.exe	93
PID 4068 wrote to memory of 4596	4068	RdrCEF.exe	93
PID 4068 wrote to memory of 4596	4068	RdrCEF.exe	93
PID 4068 wrote to memory of 4596	4068	RdrCEF.exe	93
PID 4068 wrote to memory of 4596	4068	RdrCEF.exe	93
PID 4068 wrote to memory of 4596	4068	RdrCEF.exe	93
PID 4068 wrote to memory of 4596	4068	RdrCEF.exe	93
PID 4068 wrote to memory of 4596	4068	RdrCEF.exe	93
PID 4068 wrote to memory of 4596	4068	RdrCEF.exe	93
PID 4068 wrote to memory of 4596	4068	RdrCEF.exe	93
PID 4068 wrote to memory of 4596	4068	RdrCEF.exe	93
PID 4068 wrote to memory of 4596	4068	RdrCEF.exe	93
PID 4068 wrote to memory of 4596	4068	RdrCEF.exe	93
PID 4068 wrote to memory of 4596	4068	RdrCEF.exe	93
PID 4068 wrote to memory of 4596	4068	RdrCEF.exe	93
PID 4068 wrote to memory of 4596	4068	RdrCEF.exe	93
PID 4068 wrote to memory of 4596	4068	RdrCEF.exe	93
PID 4068 wrote to memory of 4596	4068	RdrCEF.exe	93
PID 4068 wrote to memory of 4596	4068	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\790f286ff3a7e8e94e6080c502eb1fe7.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:3376
- 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:4068
- - 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=25439036A23A380B3CBE2734C366224B --mojo-platform-channel-handle=1732 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    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=renderer --disable-browser-side-navigation --disable-gpu-compositing --service-pipe-token=A94EE96039B513CFF70DAAA1D2C0EB40 --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=A94EE96039B513CFF70DAAA1D2C0EB40 --renderer-client-id=2 --mojo-platform-channel-handle=1740 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4596
- - 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=73B66BCA04A7234E265BBF8F3AFCB24B --mojo-platform-channel-handle=2304 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1452
- - 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=C955D51ED7BC4A2C47662726D6092351 --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=C955D51ED7BC4A2C47662726D6092351 --renderer-client-id=5 --mojo-platform-channel-handle=1940 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4140
- - 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=477E7D154B9F143F6835FF61F976F933 --mojo-platform-channel-handle=2684 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2028
- - 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=64ACB62ADC360909D71E257B5965330D --mojo-platform-channel-handle=2344 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4376

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
771fe45fc2d9ed6f2a4a3933efa8dffa

SHA1
b16bf61d292fc4fa8684a7cb1d65d2f3bd1f562e

SHA256
b87b3938dbda200919852c4ea29d8c50b37c72f293f043f749bc32850451c4cc

SHA512
3c52f704b367061b00cc7407b41e458f05530ef8756acb68157f1b1011c359f823798b840f3ba54ea7cbd5d59ba6705b6588efb498d910ab5d51030b1855bb78

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