15b63e8d64cd96dbc5214808c62f4a19ac281d699c76fb7d7f237d40224e979c

Analysis

max time kernel
134s
max time network
135s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
03/06/2024, 20:11

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General

Target

Taller 2_ Banco de preguntas.pdf
Size

96KB
MD5

70a356f2994e8784f395a6cb2192e358
SHA1

a809f925361a7399e0bf622b598b73adc94c42a0
SHA256

15b63e8d64cd96dbc5214808c62f4a19ac281d699c76fb7d7f237d40224e979c
SHA512

b00ab7d62f6050e8475069490f6ef81bebbcbda00bcd737a5ab528f16d0b470bd29291a564fedbe1019dd22b96870e31e3084c08babecff978ec0440404ae0e0
SSDEEP

3072:ZB1cpK6FsavDPyGeqrniUYql1ScppCnwKT8:tKlFpbCqriUYqzScpawKQ

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-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4092	AcroRd32.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4092	AcroRd32.exe
4092	AcroRd32.exe
4092	AcroRd32.exe
4092	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4092 wrote to memory of 4884	4092	AcroRd32.exe	90
PID 4092 wrote to memory of 4884	4092	AcroRd32.exe	90
PID 4092 wrote to memory of 4884	4092	AcroRd32.exe	90
PID 4884 wrote to memory of 2312	4884	RdrCEF.exe	92
PID 4884 wrote to memory of 2312	4884	RdrCEF.exe	92
PID 4884 wrote to memory of 2312	4884	RdrCEF.exe	92
PID 4884 wrote to memory of 2312	4884	RdrCEF.exe	92
PID 4884 wrote to memory of 2312	4884	RdrCEF.exe	92
PID 4884 wrote to memory of 2312	4884	RdrCEF.exe	92
PID 4884 wrote to memory of 2312	4884	RdrCEF.exe	92
PID 4884 wrote to memory of 2312	4884	RdrCEF.exe	92
PID 4884 wrote to memory of 2312	4884	RdrCEF.exe	92
PID 4884 wrote to memory of 2312	4884	RdrCEF.exe	92
PID 4884 wrote to memory of 2312	4884	RdrCEF.exe	92
PID 4884 wrote to memory of 2312	4884	RdrCEF.exe	92
PID 4884 wrote to memory of 2312	4884	RdrCEF.exe	92
PID 4884 wrote to memory of 2312	4884	RdrCEF.exe	92
PID 4884 wrote to memory of 2312	4884	RdrCEF.exe	92
PID 4884 wrote to memory of 2312	4884	RdrCEF.exe	92
PID 4884 wrote to memory of 2312	4884	RdrCEF.exe	92
PID 4884 wrote to memory of 2312	4884	RdrCEF.exe	92
PID 4884 wrote to memory of 2312	4884	RdrCEF.exe	92
PID 4884 wrote to memory of 2312	4884	RdrCEF.exe	92
PID 4884 wrote to memory of 2312	4884	RdrCEF.exe	92
PID 4884 wrote to memory of 2312	4884	RdrCEF.exe	92
PID 4884 wrote to memory of 2312	4884	RdrCEF.exe	92
PID 4884 wrote to memory of 2312	4884	RdrCEF.exe	92
PID 4884 wrote to memory of 2312	4884	RdrCEF.exe	92
PID 4884 wrote to memory of 2312	4884	RdrCEF.exe	92
PID 4884 wrote to memory of 2312	4884	RdrCEF.exe	92
PID 4884 wrote to memory of 2312	4884	RdrCEF.exe	92
PID 4884 wrote to memory of 2312	4884	RdrCEF.exe	92
PID 4884 wrote to memory of 2312	4884	RdrCEF.exe	92
PID 4884 wrote to memory of 2312	4884	RdrCEF.exe	92
PID 4884 wrote to memory of 2312	4884	RdrCEF.exe	92
PID 4884 wrote to memory of 2312	4884	RdrCEF.exe	92
PID 4884 wrote to memory of 2312	4884	RdrCEF.exe	92
PID 4884 wrote to memory of 2312	4884	RdrCEF.exe	92
PID 4884 wrote to memory of 2312	4884	RdrCEF.exe	92
PID 4884 wrote to memory of 2312	4884	RdrCEF.exe	92
PID 4884 wrote to memory of 2312	4884	RdrCEF.exe	92
PID 4884 wrote to memory of 2312	4884	RdrCEF.exe	92
PID 4884 wrote to memory of 2312	4884	RdrCEF.exe	92
PID 4884 wrote to memory of 2312	4884	RdrCEF.exe	92
PID 4884 wrote to memory of 3088	4884	RdrCEF.exe	93
PID 4884 wrote to memory of 3088	4884	RdrCEF.exe	93
PID 4884 wrote to memory of 3088	4884	RdrCEF.exe	93
PID 4884 wrote to memory of 3088	4884	RdrCEF.exe	93
PID 4884 wrote to memory of 3088	4884	RdrCEF.exe	93
PID 4884 wrote to memory of 3088	4884	RdrCEF.exe	93
PID 4884 wrote to memory of 3088	4884	RdrCEF.exe	93
PID 4884 wrote to memory of 3088	4884	RdrCEF.exe	93
PID 4884 wrote to memory of 3088	4884	RdrCEF.exe	93
PID 4884 wrote to memory of 3088	4884	RdrCEF.exe	93
PID 4884 wrote to memory of 3088	4884	RdrCEF.exe	93
PID 4884 wrote to memory of 3088	4884	RdrCEF.exe	93
PID 4884 wrote to memory of 3088	4884	RdrCEF.exe	93
PID 4884 wrote to memory of 3088	4884	RdrCEF.exe	93
PID 4884 wrote to memory of 3088	4884	RdrCEF.exe	93
PID 4884 wrote to memory of 3088	4884	RdrCEF.exe	93
PID 4884 wrote to memory of 3088	4884	RdrCEF.exe	93
PID 4884 wrote to memory of 3088	4884	RdrCEF.exe	93
PID 4884 wrote to memory of 3088	4884	RdrCEF.exe	93
PID 4884 wrote to memory of 3088	4884	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\Taller 2_ Banco de preguntas.pdf"
1⤵
- Checks processor information in registry
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4092
- 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:4884
- - 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=25F8797F41A189B334EF952F4B5FB418 --mojo-platform-channel-handle=1740 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2312
- - 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=BC372831ADCB48C568BDA77AC659F3F6 --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=BC372831ADCB48C568BDA77AC659F3F6 --renderer-client-id=2 --mojo-platform-channel-handle=1764 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:3088
- - 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=396A0C7729BBD6D78542C4DA0A3E21BA --mojo-platform-channel-handle=2340 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:876
- - 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=24689A41180D9320E9082F54ED32DAC4 --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=24689A41180D9320E9082F54ED32DAC4 --renderer-client-id=5 --mojo-platform-channel-handle=2444 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:2816
- - 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=9892A2F2AF559489BA585545152EBC0E --mojo-platform-channel-handle=2696 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3896
- - 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=8863338DC33E4062D9B5FDA89F09D1E5 --mojo-platform-channel-handle=2792 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:532

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:956

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
32eba509f6a0098dc57ba92a95da480e

SHA1
ceeab86299d25b992c08b9d7b1850a570d75a7a2

SHA256
47efb9c436de669ef17ab78c19129d2e9ed7f01495474a491699ea11cf7afc59

SHA512
f311bd19e50dcd5b0d03fcf904f8962873bb4135b4cb8eeaaa52a78cfda9580bcc577d7115db9f0bf467c2de7a1b8e74e08abdf1de043bb36b484bf35a12ae6b

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

Filesize
64KB

MD5
342eef650e5284a406f07e0f8aaeece4

SHA1
97656baa4954b43bbcc4ea1c435e125e6f396a81

SHA256
cfbaf86c3c9ff6fa8abaf8ce8a2d7f3f503789724c00789b7d76d7e94d5e4716

SHA512
b91abbc40967e0e52ded3d415dfeed39e232ca02bd8d1450a912cc3d5ea736659053203e3bc267cb432a73ae6c7d2714816ebd3a5b9495722361005a0e655581

Download Submit