f77fa466f132763af66e5002fd21ad48711c5d4af890861e26943c620a05cc1b

Analysis

max time kernel
150s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
05-03-2024 22:34

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General

Target

b5d3d84495e202f70d430a94e63a03e1.pdf
Size

87KB
MD5

b5d3d84495e202f70d430a94e63a03e1
SHA1

1dd4ae04c18e1f01596738ed1a75181faf3a8f3d
SHA256

f77fa466f132763af66e5002fd21ad48711c5d4af890861e26943c620a05cc1b
SHA512

7d7680a321a25e95e6b2d8ddc6ad1221b226467619251df767499d4aa1970f70a5a0c4123aba4c36199609fcd2e83cbac3bbc1817aae7baabc64b4369d5e022a
SSDEEP

1536:pyJ355tA2ll+SItVpXRiRz7mEFDweZ6ev9hVneWHgAKzJdyWQpOCItw:C3rtAoDI7pXRiReEhwO9hVnB0JdVCF

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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	AcroRd32.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	AcroRd32.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-399997616-3400990511-967324271-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
4624	AcroRd32.exe
4624	AcroRd32.exe
4624	AcroRd32.exe
4624	AcroRd32.exe
4624	AcroRd32.exe
4624	AcroRd32.exe
4624	AcroRd32.exe
4624	AcroRd32.exe
4624	AcroRd32.exe
4624	AcroRd32.exe
4624	AcroRd32.exe
4624	AcroRd32.exe
4624	AcroRd32.exe
4624	AcroRd32.exe
4624	AcroRd32.exe
4624	AcroRd32.exe
4624	AcroRd32.exe
4624	AcroRd32.exe
4624	AcroRd32.exe
4624	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4624	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
4624	AcroRd32.exe
4624	AcroRd32.exe
4624	AcroRd32.exe
4624	AcroRd32.exe
4624	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4624 wrote to memory of 1984	4624	AcroRd32.exe	92
PID 4624 wrote to memory of 1984	4624	AcroRd32.exe	92
PID 4624 wrote to memory of 1984	4624	AcroRd32.exe	92
PID 1984 wrote to memory of 3376	1984	RdrCEF.exe	93
PID 1984 wrote to memory of 3376	1984	RdrCEF.exe	93
PID 1984 wrote to memory of 3376	1984	RdrCEF.exe	93
PID 1984 wrote to memory of 3376	1984	RdrCEF.exe	93
PID 1984 wrote to memory of 3376	1984	RdrCEF.exe	93
PID 1984 wrote to memory of 3376	1984	RdrCEF.exe	93
PID 1984 wrote to memory of 3376	1984	RdrCEF.exe	93
PID 1984 wrote to memory of 3376	1984	RdrCEF.exe	93
PID 1984 wrote to memory of 3376	1984	RdrCEF.exe	93
PID 1984 wrote to memory of 3376	1984	RdrCEF.exe	93
PID 1984 wrote to memory of 3376	1984	RdrCEF.exe	93
PID 1984 wrote to memory of 3376	1984	RdrCEF.exe	93
PID 1984 wrote to memory of 3376	1984	RdrCEF.exe	93
PID 1984 wrote to memory of 3376	1984	RdrCEF.exe	93
PID 1984 wrote to memory of 3376	1984	RdrCEF.exe	93
PID 1984 wrote to memory of 3376	1984	RdrCEF.exe	93
PID 1984 wrote to memory of 3376	1984	RdrCEF.exe	93
PID 1984 wrote to memory of 3376	1984	RdrCEF.exe	93
PID 1984 wrote to memory of 3376	1984	RdrCEF.exe	93
PID 1984 wrote to memory of 3376	1984	RdrCEF.exe	93
PID 1984 wrote to memory of 3376	1984	RdrCEF.exe	93
PID 1984 wrote to memory of 3376	1984	RdrCEF.exe	93
PID 1984 wrote to memory of 3376	1984	RdrCEF.exe	93
PID 1984 wrote to memory of 3376	1984	RdrCEF.exe	93
PID 1984 wrote to memory of 3376	1984	RdrCEF.exe	93
PID 1984 wrote to memory of 3376	1984	RdrCEF.exe	93
PID 1984 wrote to memory of 3376	1984	RdrCEF.exe	93
PID 1984 wrote to memory of 3376	1984	RdrCEF.exe	93
PID 1984 wrote to memory of 3376	1984	RdrCEF.exe	93
PID 1984 wrote to memory of 3376	1984	RdrCEF.exe	93
PID 1984 wrote to memory of 3376	1984	RdrCEF.exe	93
PID 1984 wrote to memory of 3376	1984	RdrCEF.exe	93
PID 1984 wrote to memory of 3376	1984	RdrCEF.exe	93
PID 1984 wrote to memory of 3376	1984	RdrCEF.exe	93
PID 1984 wrote to memory of 3376	1984	RdrCEF.exe	93
PID 1984 wrote to memory of 3376	1984	RdrCEF.exe	93
PID 1984 wrote to memory of 3376	1984	RdrCEF.exe	93
PID 1984 wrote to memory of 3376	1984	RdrCEF.exe	93
PID 1984 wrote to memory of 3376	1984	RdrCEF.exe	93
PID 1984 wrote to memory of 3376	1984	RdrCEF.exe	93
PID 1984 wrote to memory of 3376	1984	RdrCEF.exe	93
PID 1984 wrote to memory of 4236	1984	RdrCEF.exe	94
PID 1984 wrote to memory of 4236	1984	RdrCEF.exe	94
PID 1984 wrote to memory of 4236	1984	RdrCEF.exe	94
PID 1984 wrote to memory of 4236	1984	RdrCEF.exe	94
PID 1984 wrote to memory of 4236	1984	RdrCEF.exe	94
PID 1984 wrote to memory of 4236	1984	RdrCEF.exe	94
PID 1984 wrote to memory of 4236	1984	RdrCEF.exe	94
PID 1984 wrote to memory of 4236	1984	RdrCEF.exe	94
PID 1984 wrote to memory of 4236	1984	RdrCEF.exe	94
PID 1984 wrote to memory of 4236	1984	RdrCEF.exe	94
PID 1984 wrote to memory of 4236	1984	RdrCEF.exe	94
PID 1984 wrote to memory of 4236	1984	RdrCEF.exe	94
PID 1984 wrote to memory of 4236	1984	RdrCEF.exe	94
PID 1984 wrote to memory of 4236	1984	RdrCEF.exe	94
PID 1984 wrote to memory of 4236	1984	RdrCEF.exe	94
PID 1984 wrote to memory of 4236	1984	RdrCEF.exe	94
PID 1984 wrote to memory of 4236	1984	RdrCEF.exe	94
PID 1984 wrote to memory of 4236	1984	RdrCEF.exe	94
PID 1984 wrote to memory of 4236	1984	RdrCEF.exe	94
PID 1984 wrote to memory of 4236	1984	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\b5d3d84495e202f70d430a94e63a03e1.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:4624
- 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:1984
- - 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=A48F2654CD3688A2B502FC35E1B42F50 --mojo-platform-channel-handle=1740 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    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" --type=renderer --disable-browser-side-navigation --disable-gpu-compositing --service-pipe-token=5944D0E6E3E828BDE356C6215D3EB98E --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=5944D0E6E3E828BDE356C6215D3EB98E --renderer-client-id=2 --mojo-platform-channel-handle=1748 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4236
- - 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=15D730E53FF372DC242FCE7A5170599D --mojo-platform-channel-handle=2148 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2520
- - 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=CDAA59FD570D93BB92419B7EBC0AC3BB --mojo-platform-channel-handle=1912 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3148
- - 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=CEB5DD019ABDB409FB15D05FD80D2A3D --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=CEB5DD019ABDB409FB15D05FD80D2A3D --renderer-client-id=6 --mojo-platform-channel-handle=2456 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:3100
- - 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=46C7B244B73E11A740FD24E04504998B --mojo-platform-channel-handle=2676 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2360

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:3936

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

C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\ReaderMessages

Filesize
64KB

MD5
ec06b47fa8f00ed51224ca11765e9748

SHA1
510f0e8969567e3309f534f795eac6de089c36da

SHA256
c8f7853890001f751a9c4e1578f1bc33cb4485cc012d0db4c788692399cb37a4

SHA512
f0805420af0e3ad216ebf0e24e51771485acc50fdce525efd4e61d260a3b1140b07eb212c393a8a5b44405ccc998e4675375eb6fcab86c8ef17429d1f8740dba

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