d033c2edc69d9b0300382727b5cd395531fbdc12676527cb24c6cd15896f093c

Resubmissions

17/03/2023, 20:11

230317-yygk9sbg8t 1

Analysis

max time kernel
141s
max time network
422s
platform
windows10-2004_x64
resource
win10v2004-20230221-en
resource tags

arch:x64arch:x86image:win10v2004-20230221-enlocale:en-usos:windows10-2004-x64system
submitted
17/03/2023, 20:11

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General

Target

BuroDeCredito/BuroDeCredito/-4OSWB4kLtwjDhL8YP1F9dp4W.pdf
Size

37KB
MD5

b29657780fdcd5c00a08b6141fb69790
SHA1

a270c0e808265c1fd3ccbbe3b5c5f33364ec86a2
SHA256

ed2f6aecd916cac95611d6fbc8ba98909c90e61d27dfda1dfc9d048ec66e1654
SHA512

4f7d3270936e737b1381ce0bec6a482fc61510b01f77c83417abb0240c516fcd95128a46c5acfd272a5787444970e908df5ceea44eeba07d828f986546e95c4a
SSDEEP

768:NV11MFFe1mQV11CQAxrtA0V11ldSU0G3+V11dBRGXV11zz:L11cQ11CQx211fSUK11dBRE113

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-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
4632	AcroRd32.exe
4632	AcroRd32.exe
4632	AcroRd32.exe
4632	AcroRd32.exe
4632	AcroRd32.exe
4632	AcroRd32.exe
4632	AcroRd32.exe
4632	AcroRd32.exe
4632	AcroRd32.exe
4632	AcroRd32.exe
4632	AcroRd32.exe
4632	AcroRd32.exe
4632	AcroRd32.exe
4632	AcroRd32.exe
4632	AcroRd32.exe
4632	AcroRd32.exe
4632	AcroRd32.exe
4632	AcroRd32.exe
4632	AcroRd32.exe
4632	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4632	AcroRd32.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
4632	AcroRd32.exe
4632	AcroRd32.exe
4632	AcroRd32.exe
4632	AcroRd32.exe
4632	AcroRd32.exe
4632	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4632 wrote to memory of 4380	4632	AcroRd32.exe	79
PID 4632 wrote to memory of 4380	4632	AcroRd32.exe	79
PID 4632 wrote to memory of 4380	4632	AcroRd32.exe	79
PID 4380 wrote to memory of 1972	4380	RdrCEF.exe	80
PID 4380 wrote to memory of 1972	4380	RdrCEF.exe	80
PID 4380 wrote to memory of 1972	4380	RdrCEF.exe	80
PID 4380 wrote to memory of 1972	4380	RdrCEF.exe	80
PID 4380 wrote to memory of 1972	4380	RdrCEF.exe	80
PID 4380 wrote to memory of 1972	4380	RdrCEF.exe	80
PID 4380 wrote to memory of 1972	4380	RdrCEF.exe	80
PID 4380 wrote to memory of 1972	4380	RdrCEF.exe	80
PID 4380 wrote to memory of 1972	4380	RdrCEF.exe	80
PID 4380 wrote to memory of 1972	4380	RdrCEF.exe	80
PID 4380 wrote to memory of 1972	4380	RdrCEF.exe	80
PID 4380 wrote to memory of 1972	4380	RdrCEF.exe	80
PID 4380 wrote to memory of 1972	4380	RdrCEF.exe	80
PID 4380 wrote to memory of 1972	4380	RdrCEF.exe	80
PID 4380 wrote to memory of 1972	4380	RdrCEF.exe	80
PID 4380 wrote to memory of 1972	4380	RdrCEF.exe	80
PID 4380 wrote to memory of 1972	4380	RdrCEF.exe	80
PID 4380 wrote to memory of 1972	4380	RdrCEF.exe	80
PID 4380 wrote to memory of 1972	4380	RdrCEF.exe	80
PID 4380 wrote to memory of 1972	4380	RdrCEF.exe	80
PID 4380 wrote to memory of 1972	4380	RdrCEF.exe	80
PID 4380 wrote to memory of 1972	4380	RdrCEF.exe	80
PID 4380 wrote to memory of 1972	4380	RdrCEF.exe	80
PID 4380 wrote to memory of 1972	4380	RdrCEF.exe	80
PID 4380 wrote to memory of 1972	4380	RdrCEF.exe	80
PID 4380 wrote to memory of 1972	4380	RdrCEF.exe	80
PID 4380 wrote to memory of 1972	4380	RdrCEF.exe	80
PID 4380 wrote to memory of 1972	4380	RdrCEF.exe	80
PID 4380 wrote to memory of 1972	4380	RdrCEF.exe	80
PID 4380 wrote to memory of 1972	4380	RdrCEF.exe	80
PID 4380 wrote to memory of 1972	4380	RdrCEF.exe	80
PID 4380 wrote to memory of 1972	4380	RdrCEF.exe	80
PID 4380 wrote to memory of 1972	4380	RdrCEF.exe	80
PID 4380 wrote to memory of 1972	4380	RdrCEF.exe	80
PID 4380 wrote to memory of 1972	4380	RdrCEF.exe	80
PID 4380 wrote to memory of 1972	4380	RdrCEF.exe	80
PID 4380 wrote to memory of 1972	4380	RdrCEF.exe	80
PID 4380 wrote to memory of 1972	4380	RdrCEF.exe	80
PID 4380 wrote to memory of 1972	4380	RdrCEF.exe	80
PID 4380 wrote to memory of 1972	4380	RdrCEF.exe	80
PID 4380 wrote to memory of 1972	4380	RdrCEF.exe	80
PID 4380 wrote to memory of 448	4380	RdrCEF.exe	81
PID 4380 wrote to memory of 448	4380	RdrCEF.exe	81
PID 4380 wrote to memory of 448	4380	RdrCEF.exe	81
PID 4380 wrote to memory of 448	4380	RdrCEF.exe	81
PID 4380 wrote to memory of 448	4380	RdrCEF.exe	81
PID 4380 wrote to memory of 448	4380	RdrCEF.exe	81
PID 4380 wrote to memory of 448	4380	RdrCEF.exe	81
PID 4380 wrote to memory of 448	4380	RdrCEF.exe	81
PID 4380 wrote to memory of 448	4380	RdrCEF.exe	81
PID 4380 wrote to memory of 448	4380	RdrCEF.exe	81
PID 4380 wrote to memory of 448	4380	RdrCEF.exe	81
PID 4380 wrote to memory of 448	4380	RdrCEF.exe	81
PID 4380 wrote to memory of 448	4380	RdrCEF.exe	81
PID 4380 wrote to memory of 448	4380	RdrCEF.exe	81
PID 4380 wrote to memory of 448	4380	RdrCEF.exe	81
PID 4380 wrote to memory of 448	4380	RdrCEF.exe	81
PID 4380 wrote to memory of 448	4380	RdrCEF.exe	81
PID 4380 wrote to memory of 448	4380	RdrCEF.exe	81
PID 4380 wrote to memory of 448	4380	RdrCEF.exe	81
PID 4380 wrote to memory of 448	4380	RdrCEF.exe	81

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\-4OSWB4kLtwjDhL8YP1F9dp4W.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:4632
- 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:4380
- - 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=D56EAE1070D86F7EDD3E99612FA44E09 --mojo-platform-channel-handle=1744 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1972
- - 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=1888DDD923D8B02A22A0084B1D3A0333 --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=1888DDD923D8B02A22A0084B1D3A0333 --renderer-client-id=2 --mojo-platform-channel-handle=1768 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:448
- - 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=8BAD8B4A1C65726D616B68C981BF1930 --mojo-platform-channel-handle=2188 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:380
- - 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=56C54AD3657942B6A7046A55FB32E4F5 --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=56C54AD3657942B6A7046A55FB32E4F5 --renderer-client-id=5 --mojo-platform-channel-handle=2344 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:1580
- - 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=5A21E86B315EB134D9B902C08F6FFB23 --mojo-platform-channel-handle=1824 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3768
- - 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=AADF09EAEA79CEC4A0B407ECB1C0DA39 --mojo-platform-channel-handle=2552 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4548

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:4684

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
24f3dbfb5ea202ff1d384e046e3e9567

SHA1
6affe772b8aa8eb33aa2ed4cb2766ccf6403eca4

SHA256
5b4d35c2551eeb85edb721a2246bc2071996535b59458ce70367c4f51a2dac5b

SHA512
9cc9c54547f2d78aa7b425bd78c9b037e00048fe8dd439af544de96414c5fc5db49ecb496edde0e17979758d855f13de6746a502fdcbce20b3aa5f43564dbefb

Download Submit