e353035e03f1d5e74719a84a5ca7503dab1b6fc366dd997277ebc98edf2fdae1

Resubmissions

11/04/2024, 12:30

240411-ppntjsbe68 3

11/04/2024, 12:26

240411-pmmhpsef5v 3

Analysis

max time kernel
295s
max time network
275s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
11/04/2024, 12:26

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2.1 PERSONAL/BRAZEIRO/BRAZEIRO.AFIP.pdf
Size

124KB
MD5

3f766dfbd55e29bd8d798809e9080c0a
SHA1

b1de35d38cb83a0c48554a6285d95c93edce5e7d
SHA256

708a78e35d509a6c4c941f1152fbfe1c941b2cc59dffa6504de28b7971c3bedc
SHA512

f2f0fe77b6a42a18e995e681fe20f67e77bdd2cdd7b2bcb68c335dbf0988ac7f8a2b515c8807420d87cba7d321e014832e1476d28a26364f88fc12bb7585fa78
SSDEEP

3072:CMInIsPNNgApNWJRtaJobtALuXKoqcOnu7cFBb:CMInIsZpNWJRqob6L7Fbd

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-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
2276	AcroRd32.exe
2276	AcroRd32.exe
2276	AcroRd32.exe
2276	AcroRd32.exe
2276	AcroRd32.exe
2276	AcroRd32.exe
2276	AcroRd32.exe
2276	AcroRd32.exe
2276	AcroRd32.exe
2276	AcroRd32.exe
2276	AcroRd32.exe
2276	AcroRd32.exe
2276	AcroRd32.exe
2276	AcroRd32.exe
2276	AcroRd32.exe
2276	AcroRd32.exe
2276	AcroRd32.exe
2276	AcroRd32.exe
2276	AcroRd32.exe
2276	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2276	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
2276	AcroRd32.exe
2276	AcroRd32.exe
2276	AcroRd32.exe
2276	AcroRd32.exe
2276	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2276 wrote to memory of 3308	2276	AcroRd32.exe	86
PID 2276 wrote to memory of 3308	2276	AcroRd32.exe	86
PID 2276 wrote to memory of 3308	2276	AcroRd32.exe	86
PID 3308 wrote to memory of 5012	3308	RdrCEF.exe	89
PID 3308 wrote to memory of 5012	3308	RdrCEF.exe	89
PID 3308 wrote to memory of 5012	3308	RdrCEF.exe	89
PID 3308 wrote to memory of 5012	3308	RdrCEF.exe	89
PID 3308 wrote to memory of 5012	3308	RdrCEF.exe	89
PID 3308 wrote to memory of 5012	3308	RdrCEF.exe	89
PID 3308 wrote to memory of 5012	3308	RdrCEF.exe	89
PID 3308 wrote to memory of 5012	3308	RdrCEF.exe	89
PID 3308 wrote to memory of 5012	3308	RdrCEF.exe	89
PID 3308 wrote to memory of 5012	3308	RdrCEF.exe	89
PID 3308 wrote to memory of 5012	3308	RdrCEF.exe	89
PID 3308 wrote to memory of 5012	3308	RdrCEF.exe	89
PID 3308 wrote to memory of 5012	3308	RdrCEF.exe	89
PID 3308 wrote to memory of 5012	3308	RdrCEF.exe	89
PID 3308 wrote to memory of 5012	3308	RdrCEF.exe	89
PID 3308 wrote to memory of 5012	3308	RdrCEF.exe	89
PID 3308 wrote to memory of 5012	3308	RdrCEF.exe	89
PID 3308 wrote to memory of 5012	3308	RdrCEF.exe	89
PID 3308 wrote to memory of 5012	3308	RdrCEF.exe	89
PID 3308 wrote to memory of 5012	3308	RdrCEF.exe	89
PID 3308 wrote to memory of 5012	3308	RdrCEF.exe	89
PID 3308 wrote to memory of 5012	3308	RdrCEF.exe	89
PID 3308 wrote to memory of 5012	3308	RdrCEF.exe	89
PID 3308 wrote to memory of 5012	3308	RdrCEF.exe	89
PID 3308 wrote to memory of 5012	3308	RdrCEF.exe	89
PID 3308 wrote to memory of 5012	3308	RdrCEF.exe	89
PID 3308 wrote to memory of 5012	3308	RdrCEF.exe	89
PID 3308 wrote to memory of 5012	3308	RdrCEF.exe	89
PID 3308 wrote to memory of 5012	3308	RdrCEF.exe	89
PID 3308 wrote to memory of 5012	3308	RdrCEF.exe	89
PID 3308 wrote to memory of 5012	3308	RdrCEF.exe	89
PID 3308 wrote to memory of 5012	3308	RdrCEF.exe	89
PID 3308 wrote to memory of 5012	3308	RdrCEF.exe	89
PID 3308 wrote to memory of 5012	3308	RdrCEF.exe	89
PID 3308 wrote to memory of 5012	3308	RdrCEF.exe	89
PID 3308 wrote to memory of 5012	3308	RdrCEF.exe	89
PID 3308 wrote to memory of 5012	3308	RdrCEF.exe	89
PID 3308 wrote to memory of 5012	3308	RdrCEF.exe	89
PID 3308 wrote to memory of 5012	3308	RdrCEF.exe	89
PID 3308 wrote to memory of 5012	3308	RdrCEF.exe	89
PID 3308 wrote to memory of 5012	3308	RdrCEF.exe	89
PID 3308 wrote to memory of 4204	3308	RdrCEF.exe	90
PID 3308 wrote to memory of 4204	3308	RdrCEF.exe	90
PID 3308 wrote to memory of 4204	3308	RdrCEF.exe	90
PID 3308 wrote to memory of 4204	3308	RdrCEF.exe	90
PID 3308 wrote to memory of 4204	3308	RdrCEF.exe	90
PID 3308 wrote to memory of 4204	3308	RdrCEF.exe	90
PID 3308 wrote to memory of 4204	3308	RdrCEF.exe	90
PID 3308 wrote to memory of 4204	3308	RdrCEF.exe	90
PID 3308 wrote to memory of 4204	3308	RdrCEF.exe	90
PID 3308 wrote to memory of 4204	3308	RdrCEF.exe	90
PID 3308 wrote to memory of 4204	3308	RdrCEF.exe	90
PID 3308 wrote to memory of 4204	3308	RdrCEF.exe	90
PID 3308 wrote to memory of 4204	3308	RdrCEF.exe	90
PID 3308 wrote to memory of 4204	3308	RdrCEF.exe	90
PID 3308 wrote to memory of 4204	3308	RdrCEF.exe	90
PID 3308 wrote to memory of 4204	3308	RdrCEF.exe	90
PID 3308 wrote to memory of 4204	3308	RdrCEF.exe	90
PID 3308 wrote to memory of 4204	3308	RdrCEF.exe	90
PID 3308 wrote to memory of 4204	3308	RdrCEF.exe	90
PID 3308 wrote to memory of 4204	3308	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\2.1 PERSONAL\BRAZEIRO\BRAZEIRO.AFIP.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:2276
- 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:3308
- - 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=20828CDD157A4E463F3BEBBF0D9A2B1E --mojo-platform-channel-handle=1732 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:5012
- - 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=4C2AC3D03C2CD837215BECFFADAA1ADA --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=4C2AC3D03C2CD837215BECFFADAA1ADA --renderer-client-id=2 --mojo-platform-channel-handle=1752 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4204
- - 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=FE8FCA546BDDAF5CE0DE31983BF2C948 --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=FE8FCA546BDDAF5CE0DE31983BF2C948 --renderer-client-id=4 --mojo-platform-channel-handle=2304 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:2368
- - 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=A5306BA3974C836B43085C1E899E300F --mojo-platform-channel-handle=2424 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    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=D8693ED83A4E375836EA12A18EB7BED0 --mojo-platform-channel-handle=1808 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3644
- - 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=C99FB4D3AD1A948ED3E4A9BE7B96D51B --mojo-platform-channel-handle=2452 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2172

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:4048

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
d6eb4e5fc67801cf99a30853c8781ce9

SHA1
6610e2b0efbdbc369981c75ea223b6020a88fe9d

SHA256
96ba10242d653306aca9c09c8e6700a0e5f5de8881758c8655a12eefb35bcc21

SHA512
cf18a7803c9240e818ebe8359fc2b80bc04951fc520dd34c291bf53d953771347f4713b9d9576b763bacba6f0b1858c18dc866869db1d5c800fa8e4ae9c321a0

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