d033c2edc69d9b0300382727b5cd395531fbdc12676527cb24c6cd15896f093c

Resubmissions

17/03/2023, 20:11

230317-yygk9sbg8t 1

Analysis

max time kernel
141s
max time network
263s
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/-39qZBLvBIZcvw3nFMVnv26F4.pdf
Size

107KB
MD5

9c76f955b28acee38f9b4620450531f6
SHA1

bb06757d120e01380e796c58b9031684fc1ad222
SHA256

44b5b93bc73262572b73bc8b6082b95bf8defad63fa790a9e96d57568e2531f4
SHA512

806b9b8b05f37324c307fc654827fa44f904614018d55bccdd25f7610f375cee0f7d0ef5ffcb17bc0015744a22b05216c72368a7e9d5126e6ae34aacc5730c10
SSDEEP

3072:LwHMtavdSGWKVGLywlozICBiH0uCuMn0iuw/Omk2i8hZH:LwHA2z3VG8IYiUuCuM/Ik

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-1-5-21-4238149048-355649189-894321705-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
3252	AcroRd32.exe
3252	AcroRd32.exe
3252	AcroRd32.exe
3252	AcroRd32.exe
3252	AcroRd32.exe
3252	AcroRd32.exe
3252	AcroRd32.exe
3252	AcroRd32.exe
3252	AcroRd32.exe
3252	AcroRd32.exe
3252	AcroRd32.exe
3252	AcroRd32.exe
3252	AcroRd32.exe
3252	AcroRd32.exe
3252	AcroRd32.exe
3252	AcroRd32.exe
3252	AcroRd32.exe
3252	AcroRd32.exe
3252	AcroRd32.exe
3252	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3252	AcroRd32.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
3252	AcroRd32.exe
3252	AcroRd32.exe
3252	AcroRd32.exe
3252	AcroRd32.exe
3252	AcroRd32.exe
3252	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 3252 wrote to memory of 2172	3252	AcroRd32.exe	87
PID 3252 wrote to memory of 2172	3252	AcroRd32.exe	87
PID 3252 wrote to memory of 2172	3252	AcroRd32.exe	87
PID 2172 wrote to memory of 3940	2172	RdrCEF.exe	88
PID 2172 wrote to memory of 3940	2172	RdrCEF.exe	88
PID 2172 wrote to memory of 3940	2172	RdrCEF.exe	88
PID 2172 wrote to memory of 3940	2172	RdrCEF.exe	88
PID 2172 wrote to memory of 3940	2172	RdrCEF.exe	88
PID 2172 wrote to memory of 3940	2172	RdrCEF.exe	88
PID 2172 wrote to memory of 3940	2172	RdrCEF.exe	88
PID 2172 wrote to memory of 3940	2172	RdrCEF.exe	88
PID 2172 wrote to memory of 3940	2172	RdrCEF.exe	88
PID 2172 wrote to memory of 3940	2172	RdrCEF.exe	88
PID 2172 wrote to memory of 3940	2172	RdrCEF.exe	88
PID 2172 wrote to memory of 3940	2172	RdrCEF.exe	88
PID 2172 wrote to memory of 3940	2172	RdrCEF.exe	88
PID 2172 wrote to memory of 3940	2172	RdrCEF.exe	88
PID 2172 wrote to memory of 3940	2172	RdrCEF.exe	88
PID 2172 wrote to memory of 3940	2172	RdrCEF.exe	88
PID 2172 wrote to memory of 3940	2172	RdrCEF.exe	88
PID 2172 wrote to memory of 3940	2172	RdrCEF.exe	88
PID 2172 wrote to memory of 3940	2172	RdrCEF.exe	88
PID 2172 wrote to memory of 3940	2172	RdrCEF.exe	88
PID 2172 wrote to memory of 3940	2172	RdrCEF.exe	88
PID 2172 wrote to memory of 3940	2172	RdrCEF.exe	88
PID 2172 wrote to memory of 3940	2172	RdrCEF.exe	88
PID 2172 wrote to memory of 3940	2172	RdrCEF.exe	88
PID 2172 wrote to memory of 3940	2172	RdrCEF.exe	88
PID 2172 wrote to memory of 3940	2172	RdrCEF.exe	88
PID 2172 wrote to memory of 3940	2172	RdrCEF.exe	88
PID 2172 wrote to memory of 3940	2172	RdrCEF.exe	88
PID 2172 wrote to memory of 3940	2172	RdrCEF.exe	88
PID 2172 wrote to memory of 3940	2172	RdrCEF.exe	88
PID 2172 wrote to memory of 3940	2172	RdrCEF.exe	88
PID 2172 wrote to memory of 3940	2172	RdrCEF.exe	88
PID 2172 wrote to memory of 3940	2172	RdrCEF.exe	88
PID 2172 wrote to memory of 3940	2172	RdrCEF.exe	88
PID 2172 wrote to memory of 3940	2172	RdrCEF.exe	88
PID 2172 wrote to memory of 3940	2172	RdrCEF.exe	88
PID 2172 wrote to memory of 3940	2172	RdrCEF.exe	88
PID 2172 wrote to memory of 3940	2172	RdrCEF.exe	88
PID 2172 wrote to memory of 3940	2172	RdrCEF.exe	88
PID 2172 wrote to memory of 3940	2172	RdrCEF.exe	88
PID 2172 wrote to memory of 3940	2172	RdrCEF.exe	88
PID 2172 wrote to memory of 4156	2172	RdrCEF.exe	89
PID 2172 wrote to memory of 4156	2172	RdrCEF.exe	89
PID 2172 wrote to memory of 4156	2172	RdrCEF.exe	89
PID 2172 wrote to memory of 4156	2172	RdrCEF.exe	89
PID 2172 wrote to memory of 4156	2172	RdrCEF.exe	89
PID 2172 wrote to memory of 4156	2172	RdrCEF.exe	89
PID 2172 wrote to memory of 4156	2172	RdrCEF.exe	89
PID 2172 wrote to memory of 4156	2172	RdrCEF.exe	89
PID 2172 wrote to memory of 4156	2172	RdrCEF.exe	89
PID 2172 wrote to memory of 4156	2172	RdrCEF.exe	89
PID 2172 wrote to memory of 4156	2172	RdrCEF.exe	89
PID 2172 wrote to memory of 4156	2172	RdrCEF.exe	89
PID 2172 wrote to memory of 4156	2172	RdrCEF.exe	89
PID 2172 wrote to memory of 4156	2172	RdrCEF.exe	89
PID 2172 wrote to memory of 4156	2172	RdrCEF.exe	89
PID 2172 wrote to memory of 4156	2172	RdrCEF.exe	89
PID 2172 wrote to memory of 4156	2172	RdrCEF.exe	89
PID 2172 wrote to memory of 4156	2172	RdrCEF.exe	89
PID 2172 wrote to memory of 4156	2172	RdrCEF.exe	89
PID 2172 wrote to memory of 4156	2172	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\-39qZBLvBIZcvw3nFMVnv26F4.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:3252
- 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:2172
- - 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=07EE8F9FA13204C82B7F4AA30451D4DC --mojo-platform-channel-handle=1728 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3940
- - 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=D75E2C522B1DB8A8C33D4CF61F73260F --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=D75E2C522B1DB8A8C33D4CF61F73260F --renderer-client-id=2 --mojo-platform-channel-handle=1736 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4156
- - 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=D0A84DCF55C0CAB2ECF2FC7B8796DFF0 --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=D0A84DCF55C0CAB2ECF2FC7B8796DFF0 --renderer-client-id=4 --mojo-platform-channel-handle=2160 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:2168
- - 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=B3FD68F700DEB67FDCA6944AE2DA3505 --mojo-platform-channel-handle=2548 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:5060
- - 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=D8761874BA3C4D83643BF3687E91C150 --mojo-platform-channel-handle=2656 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:716
- - 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=A7481AE352ECE7F933ED4D28D9DBBB9E --mojo-platform-channel-handle=1932 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3668

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:2104

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

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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
883f98df979c50ea7f16667332380457

SHA1
659ec5e750d288dbd1531c35b5402ba55e67359d

SHA256
1253618ac5726a6164ff58822afb0adcdbb1b68d0b340cb8022952724c2b3fa1

SHA512
9716c80d7894424aaf952c0cc638c9b5ff8f9f31a8a8ee10d25c8501d0c1f0fe4b02b1aa7748ed4ddefed53b3e0cf57d67507737422785f51a8b1ec3f1f64fb2

Download Submit
C:\Users\Admin\AppData\Local\Adobe\Acrobat\DC\SharedDataEvents

Filesize
12KB

MD5
82e67d76435d22e1c586726bb3cf5163

SHA1
2e5f2c2ff166c21126e9809f7494a0578b5429ad

SHA256
1084bac7d2414d1110fcbf6d37590e92e10ae0e785dbe26503e6675703d84423

SHA512
b901210aacdef701709ef29e7369175daa3114dc523c45bdbf105ea1b4fa3dc8c1435579b50c417df30b0570c8ced102b9e7b74969aacad75b88f7cd1338ad5c

Download Submit
memory/3252-264-0x000000000BA70000-0x000000000BD1B000-memory.dmp

Filesize
2.7MB

Download