d033c2edc69d9b0300382727b5cd395531fbdc12676527cb24c6cd15896f093c

Resubmissions

17/03/2023, 20:11

230317-yygk9sbg8t 1

Analysis

max time kernel
146s
max time network
243s
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/-00U3B-uAcfLjsTZPa5_HiJBu.pdf
Size

34KB
MD5

e2c5a3b78566cd19767af9307ff37b23
SHA1

ea0258f43e81c4875ee3f8c7ca05a157aa46861f
SHA256

dab87a4ea3ee56082f13cdeb52cd55925e298a9336617eb0b4cf2722d0ead48d
SHA512

b3c49d495782127dd3f943095d9eefd5b1d0ebcace9475e17b0fe5ddab9a5e3b80ff56dffe8abeecc7fd046afb18cc5c8433dd26c646002d0967feaa191be336
SSDEEP

768:NV11G+frT41V11L2R1SuBDMSezFgV11B9LV11rpVMXV110C:L119ns11LsS4DfAo11bB119Vq11t

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-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
1372	AcroRd32.exe
1372	AcroRd32.exe
1372	AcroRd32.exe
1372	AcroRd32.exe
1372	AcroRd32.exe
1372	AcroRd32.exe
1372	AcroRd32.exe
1372	AcroRd32.exe
1372	AcroRd32.exe
1372	AcroRd32.exe
1372	AcroRd32.exe
1372	AcroRd32.exe
1372	AcroRd32.exe
1372	AcroRd32.exe
1372	AcroRd32.exe
1372	AcroRd32.exe
1372	AcroRd32.exe
1372	AcroRd32.exe
1372	AcroRd32.exe
1372	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1372	AcroRd32.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
1372	AcroRd32.exe
1372	AcroRd32.exe
1372	AcroRd32.exe
1372	AcroRd32.exe
1372	AcroRd32.exe
1372	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 1372 wrote to memory of 3176	1372	AcroRd32.exe	88
PID 1372 wrote to memory of 3176	1372	AcroRd32.exe	88
PID 1372 wrote to memory of 3176	1372	AcroRd32.exe	88
PID 3176 wrote to memory of 3352	3176	RdrCEF.exe	89
PID 3176 wrote to memory of 3352	3176	RdrCEF.exe	89
PID 3176 wrote to memory of 3352	3176	RdrCEF.exe	89
PID 3176 wrote to memory of 3352	3176	RdrCEF.exe	89
PID 3176 wrote to memory of 3352	3176	RdrCEF.exe	89
PID 3176 wrote to memory of 3352	3176	RdrCEF.exe	89
PID 3176 wrote to memory of 3352	3176	RdrCEF.exe	89
PID 3176 wrote to memory of 3352	3176	RdrCEF.exe	89
PID 3176 wrote to memory of 3352	3176	RdrCEF.exe	89
PID 3176 wrote to memory of 3352	3176	RdrCEF.exe	89
PID 3176 wrote to memory of 3352	3176	RdrCEF.exe	89
PID 3176 wrote to memory of 3352	3176	RdrCEF.exe	89
PID 3176 wrote to memory of 3352	3176	RdrCEF.exe	89
PID 3176 wrote to memory of 3352	3176	RdrCEF.exe	89
PID 3176 wrote to memory of 3352	3176	RdrCEF.exe	89
PID 3176 wrote to memory of 3352	3176	RdrCEF.exe	89
PID 3176 wrote to memory of 3352	3176	RdrCEF.exe	89
PID 3176 wrote to memory of 3352	3176	RdrCEF.exe	89
PID 3176 wrote to memory of 3352	3176	RdrCEF.exe	89
PID 3176 wrote to memory of 3352	3176	RdrCEF.exe	89
PID 3176 wrote to memory of 3352	3176	RdrCEF.exe	89
PID 3176 wrote to memory of 3352	3176	RdrCEF.exe	89
PID 3176 wrote to memory of 3352	3176	RdrCEF.exe	89
PID 3176 wrote to memory of 3352	3176	RdrCEF.exe	89
PID 3176 wrote to memory of 3352	3176	RdrCEF.exe	89
PID 3176 wrote to memory of 3352	3176	RdrCEF.exe	89
PID 3176 wrote to memory of 3352	3176	RdrCEF.exe	89
PID 3176 wrote to memory of 3352	3176	RdrCEF.exe	89
PID 3176 wrote to memory of 3352	3176	RdrCEF.exe	89
PID 3176 wrote to memory of 3352	3176	RdrCEF.exe	89
PID 3176 wrote to memory of 3352	3176	RdrCEF.exe	89
PID 3176 wrote to memory of 3352	3176	RdrCEF.exe	89
PID 3176 wrote to memory of 3352	3176	RdrCEF.exe	89
PID 3176 wrote to memory of 3352	3176	RdrCEF.exe	89
PID 3176 wrote to memory of 3352	3176	RdrCEF.exe	89
PID 3176 wrote to memory of 3352	3176	RdrCEF.exe	89
PID 3176 wrote to memory of 3352	3176	RdrCEF.exe	89
PID 3176 wrote to memory of 3352	3176	RdrCEF.exe	89
PID 3176 wrote to memory of 3352	3176	RdrCEF.exe	89
PID 3176 wrote to memory of 3352	3176	RdrCEF.exe	89
PID 3176 wrote to memory of 3352	3176	RdrCEF.exe	89
PID 3176 wrote to memory of 4972	3176	RdrCEF.exe	90
PID 3176 wrote to memory of 4972	3176	RdrCEF.exe	90
PID 3176 wrote to memory of 4972	3176	RdrCEF.exe	90
PID 3176 wrote to memory of 4972	3176	RdrCEF.exe	90
PID 3176 wrote to memory of 4972	3176	RdrCEF.exe	90
PID 3176 wrote to memory of 4972	3176	RdrCEF.exe	90
PID 3176 wrote to memory of 4972	3176	RdrCEF.exe	90
PID 3176 wrote to memory of 4972	3176	RdrCEF.exe	90
PID 3176 wrote to memory of 4972	3176	RdrCEF.exe	90
PID 3176 wrote to memory of 4972	3176	RdrCEF.exe	90
PID 3176 wrote to memory of 4972	3176	RdrCEF.exe	90
PID 3176 wrote to memory of 4972	3176	RdrCEF.exe	90
PID 3176 wrote to memory of 4972	3176	RdrCEF.exe	90
PID 3176 wrote to memory of 4972	3176	RdrCEF.exe	90
PID 3176 wrote to memory of 4972	3176	RdrCEF.exe	90
PID 3176 wrote to memory of 4972	3176	RdrCEF.exe	90
PID 3176 wrote to memory of 4972	3176	RdrCEF.exe	90
PID 3176 wrote to memory of 4972	3176	RdrCEF.exe	90
PID 3176 wrote to memory of 4972	3176	RdrCEF.exe	90
PID 3176 wrote to memory of 4972	3176	RdrCEF.exe	90

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\-00U3B-uAcfLjsTZPa5_HiJBu.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:1372
- 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:3176
- - 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=B3D61B11722C35ACB6FCD46FA3975ED7 --mojo-platform-channel-handle=1732 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3352
- - 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=92C6A47FF93B6314047CD85E3AAAC02C --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=92C6A47FF93B6314047CD85E3AAAC02C --renderer-client-id=2 --mojo-platform-channel-handle=1744 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4972
- - 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=40595D8E6E368427C8D096AFA1E73C30 --mojo-platform-channel-handle=2296 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3428
- - 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=BE4D581723EC556C83A0C165BBA13394 --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=BE4D581723EC556C83A0C165BBA13394 --renderer-client-id=5 --mojo-platform-channel-handle=2412 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4476
- - 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=E24A6446277CD1D7B4A2E4A60FFE4876 --mojo-platform-channel-handle=1924 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:960
- - 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=E8355EC5F47F36856974489AE938A27A --mojo-platform-channel-handle=1748 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3068

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:4544

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
892e4c59c9a547044e3180341a4ebaa3

SHA1
e30212822effa46d2ebbddeea814859e7ab0f443

SHA256
2585900f20305e26a873985c91dd0d64b87b9a8e6cd85fb43e9d675c184e273f

SHA512
623127edbe0d1082003f57773c455c36f337c09df93d3a0ee6888ee36b4397c1633338e3979756b0c0f3b8092ec1fec3cd3aa1e97555f53384183a86a27a3eb7

Download Submit