d033c2edc69d9b0300382727b5cd395531fbdc12676527cb24c6cd15896f093c

Resubmissions

17/03/2023, 20:11

230317-yygk9sbg8t 1

Analysis

max time kernel
140s
max time network
215s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
17/03/2023, 20:11

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General

Target

BuroDeCredito/BuroDeCredito/-31AJhwr_3qSG2lEERKypjF4C.pdf
Size

109KB
MD5

9078920b1ab863a9c6bcb2a4a23ec246
SHA1

04e17310c0536270cb7fdd59eadc2cf7fd0b12d9
SHA256

f6c3e245686435ab7187a23b63675ea911ec7c5ef3013bf4892884e01e503738
SHA512

7befd7999cb73724a9bc4460c85ddb19a6d27c7fc2525e957568308a9c8f568a18d0ea025fba55b8c0ec590060d5ad7d0cc539ba47e81add616ebf595c8e8f9b
SSDEEP

3072:33hg4u/FVywlozICBiH0uCugsyO90lICwU3A4WdehEI:3+1V8IYiUuCugsyflWe

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-1-5-21-2275444769-3691835758-4097679484-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
3476	AcroRd32.exe
3476	AcroRd32.exe
3476	AcroRd32.exe
3476	AcroRd32.exe
3476	AcroRd32.exe
3476	AcroRd32.exe
3476	AcroRd32.exe
3476	AcroRd32.exe
3476	AcroRd32.exe
3476	AcroRd32.exe
3476	AcroRd32.exe
3476	AcroRd32.exe
3476	AcroRd32.exe
3476	AcroRd32.exe
3476	AcroRd32.exe
3476	AcroRd32.exe
3476	AcroRd32.exe
3476	AcroRd32.exe
3476	AcroRd32.exe
3476	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3476	AcroRd32.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
3476	AcroRd32.exe
3476	AcroRd32.exe
3476	AcroRd32.exe
3476	AcroRd32.exe
3476	AcroRd32.exe
3476	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 3476 wrote to memory of 3320	3476	AcroRd32.exe	87
PID 3476 wrote to memory of 3320	3476	AcroRd32.exe	87
PID 3476 wrote to memory of 3320	3476	AcroRd32.exe	87
PID 3320 wrote to memory of 2112	3320	RdrCEF.exe	88
PID 3320 wrote to memory of 2112	3320	RdrCEF.exe	88
PID 3320 wrote to memory of 2112	3320	RdrCEF.exe	88
PID 3320 wrote to memory of 2112	3320	RdrCEF.exe	88
PID 3320 wrote to memory of 2112	3320	RdrCEF.exe	88
PID 3320 wrote to memory of 2112	3320	RdrCEF.exe	88
PID 3320 wrote to memory of 2112	3320	RdrCEF.exe	88
PID 3320 wrote to memory of 2112	3320	RdrCEF.exe	88
PID 3320 wrote to memory of 2112	3320	RdrCEF.exe	88
PID 3320 wrote to memory of 2112	3320	RdrCEF.exe	88
PID 3320 wrote to memory of 2112	3320	RdrCEF.exe	88
PID 3320 wrote to memory of 2112	3320	RdrCEF.exe	88
PID 3320 wrote to memory of 2112	3320	RdrCEF.exe	88
PID 3320 wrote to memory of 2112	3320	RdrCEF.exe	88
PID 3320 wrote to memory of 2112	3320	RdrCEF.exe	88
PID 3320 wrote to memory of 2112	3320	RdrCEF.exe	88
PID 3320 wrote to memory of 2112	3320	RdrCEF.exe	88
PID 3320 wrote to memory of 2112	3320	RdrCEF.exe	88
PID 3320 wrote to memory of 2112	3320	RdrCEF.exe	88
PID 3320 wrote to memory of 2112	3320	RdrCEF.exe	88
PID 3320 wrote to memory of 2112	3320	RdrCEF.exe	88
PID 3320 wrote to memory of 2112	3320	RdrCEF.exe	88
PID 3320 wrote to memory of 2112	3320	RdrCEF.exe	88
PID 3320 wrote to memory of 2112	3320	RdrCEF.exe	88
PID 3320 wrote to memory of 2112	3320	RdrCEF.exe	88
PID 3320 wrote to memory of 2112	3320	RdrCEF.exe	88
PID 3320 wrote to memory of 2112	3320	RdrCEF.exe	88
PID 3320 wrote to memory of 2112	3320	RdrCEF.exe	88
PID 3320 wrote to memory of 2112	3320	RdrCEF.exe	88
PID 3320 wrote to memory of 2112	3320	RdrCEF.exe	88
PID 3320 wrote to memory of 2112	3320	RdrCEF.exe	88
PID 3320 wrote to memory of 2112	3320	RdrCEF.exe	88
PID 3320 wrote to memory of 2112	3320	RdrCEF.exe	88
PID 3320 wrote to memory of 2112	3320	RdrCEF.exe	88
PID 3320 wrote to memory of 2112	3320	RdrCEF.exe	88
PID 3320 wrote to memory of 2112	3320	RdrCEF.exe	88
PID 3320 wrote to memory of 2112	3320	RdrCEF.exe	88
PID 3320 wrote to memory of 2112	3320	RdrCEF.exe	88
PID 3320 wrote to memory of 2112	3320	RdrCEF.exe	88
PID 3320 wrote to memory of 2112	3320	RdrCEF.exe	88
PID 3320 wrote to memory of 2112	3320	RdrCEF.exe	88
PID 3320 wrote to memory of 2112	3320	RdrCEF.exe	88
PID 3320 wrote to memory of 2112	3320	RdrCEF.exe	88
PID 3320 wrote to memory of 1468	3320	RdrCEF.exe	89
PID 3320 wrote to memory of 1468	3320	RdrCEF.exe	89
PID 3320 wrote to memory of 1468	3320	RdrCEF.exe	89
PID 3320 wrote to memory of 1468	3320	RdrCEF.exe	89
PID 3320 wrote to memory of 1468	3320	RdrCEF.exe	89
PID 3320 wrote to memory of 1468	3320	RdrCEF.exe	89
PID 3320 wrote to memory of 1468	3320	RdrCEF.exe	89
PID 3320 wrote to memory of 1468	3320	RdrCEF.exe	89
PID 3320 wrote to memory of 1468	3320	RdrCEF.exe	89
PID 3320 wrote to memory of 1468	3320	RdrCEF.exe	89
PID 3320 wrote to memory of 1468	3320	RdrCEF.exe	89
PID 3320 wrote to memory of 1468	3320	RdrCEF.exe	89
PID 3320 wrote to memory of 1468	3320	RdrCEF.exe	89
PID 3320 wrote to memory of 1468	3320	RdrCEF.exe	89
PID 3320 wrote to memory of 1468	3320	RdrCEF.exe	89
PID 3320 wrote to memory of 1468	3320	RdrCEF.exe	89
PID 3320 wrote to memory of 1468	3320	RdrCEF.exe	89
PID 3320 wrote to memory of 1468	3320	RdrCEF.exe	89

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\BuroDeCredito\BuroDeCredito\-31AJhwr_3qSG2lEERKypjF4C.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:3476
- 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:3320
- - 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=7442428F8B636D796B2B0BF79D383455 --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=2 --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=7442428F8B636D796B2B0BF79D383455 --renderer-client-id=2 --mojo-platform-channel-handle=1736 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:2112
- - 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=8C69659060EFEC752DA4A28948C78EB6 --mojo-platform-channel-handle=1844 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1468
- - 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=B9822D5437EBAC870F3124F87F7CF171 --mojo-platform-channel-handle=2328 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1900
- - 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=4EB925DA0719CC9B26FA3071A1F0B58B --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=2 --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=4EB925DA0719CC9B26FA3071A1F0B58B --renderer-client-id=5 --mojo-platform-channel-handle=2336 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:728
- - 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=3A598EB566C532C49789680C74F9FB55 --mojo-platform-channel-handle=2064 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2380
- - 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=5241AF3C7CE4E903D795B88287526039 --mojo-platform-channel-handle=1720 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:268

Network

MITRE ATT&CK Enterprise v6

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

Filesize
64KB

MD5
252f56e9f5a310144330894a921d6374

SHA1
7393d454974a4f3c4f7891e3985480e51a9dd0fb

SHA256
193e8ad85cd0e09e32b123b52a539dc90f55e0de70bdbd4875c5c423cdda49f4

SHA512
7ecb5aee72e14505d4d29faed4f0951e7c7bd95b137be5761c731ccfb2044bd52a37a6305936403dcf73c2d3b78835383311adc6936d5ee3b4dd164f665bcf5d

Download Submit