486f346471c445aab050b2f6d8770fd7eb335cc4078459a94ed358249386bb4e

Analysis

max time kernel
140s
max time network
128s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
21-03-2023 14:22

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General

Target

RIMESSA_CASSEGNI21032023-8608.pdf
Size

147KB
MD5

983a0bf99b9f078bcab5c0cedbbe1135
SHA1

a4f122f71a069b144b3bfb62994a0eae73458f5d
SHA256

486f346471c445aab050b2f6d8770fd7eb335cc4078459a94ed358249386bb4e
SHA512

b4d79c8e504aa70cd06ae702866153ee9bbec2dde70ee01b9ac3c7732dd12360ebcd89204341ed10dc886c390df9ffd3575c2c75db434793145a20d96e3c9ba3
SSDEEP

3072:mXZn4WiOLVM25WPqPyk4fCWvmKNzr7D8hzkvm666NwJdw57ftCYw5w1:gZJid25WPqPx4vdxr7DJm6666JdkTT

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-1-5-21-1013461898-3711306144-4198452673-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
1100	AcroRd32.exe
1100	AcroRd32.exe
1100	AcroRd32.exe
1100	AcroRd32.exe
1100	AcroRd32.exe
1100	AcroRd32.exe
1100	AcroRd32.exe
1100	AcroRd32.exe
1100	AcroRd32.exe
1100	AcroRd32.exe
1100	AcroRd32.exe
1100	AcroRd32.exe
1100	AcroRd32.exe
1100	AcroRd32.exe
1100	AcroRd32.exe
1100	AcroRd32.exe
1100	AcroRd32.exe
1100	AcroRd32.exe
1100	AcroRd32.exe
1100	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1100	AcroRd32.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
1100	AcroRd32.exe
1100	AcroRd32.exe
1100	AcroRd32.exe
1100	AcroRd32.exe
1100	AcroRd32.exe
1100	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 1100 wrote to memory of 3696	1100	AcroRd32.exe	87
PID 1100 wrote to memory of 3696	1100	AcroRd32.exe	87
PID 1100 wrote to memory of 3696	1100	AcroRd32.exe	87
PID 3696 wrote to memory of 540	3696	RdrCEF.exe	89
PID 3696 wrote to memory of 540	3696	RdrCEF.exe	89
PID 3696 wrote to memory of 540	3696	RdrCEF.exe	89
PID 3696 wrote to memory of 540	3696	RdrCEF.exe	89
PID 3696 wrote to memory of 540	3696	RdrCEF.exe	89
PID 3696 wrote to memory of 540	3696	RdrCEF.exe	89
PID 3696 wrote to memory of 540	3696	RdrCEF.exe	89
PID 3696 wrote to memory of 540	3696	RdrCEF.exe	89
PID 3696 wrote to memory of 540	3696	RdrCEF.exe	89
PID 3696 wrote to memory of 540	3696	RdrCEF.exe	89
PID 3696 wrote to memory of 540	3696	RdrCEF.exe	89
PID 3696 wrote to memory of 540	3696	RdrCEF.exe	89
PID 3696 wrote to memory of 540	3696	RdrCEF.exe	89
PID 3696 wrote to memory of 540	3696	RdrCEF.exe	89
PID 3696 wrote to memory of 540	3696	RdrCEF.exe	89
PID 3696 wrote to memory of 540	3696	RdrCEF.exe	89
PID 3696 wrote to memory of 540	3696	RdrCEF.exe	89
PID 3696 wrote to memory of 540	3696	RdrCEF.exe	89
PID 3696 wrote to memory of 540	3696	RdrCEF.exe	89
PID 3696 wrote to memory of 540	3696	RdrCEF.exe	89
PID 3696 wrote to memory of 540	3696	RdrCEF.exe	89
PID 3696 wrote to memory of 540	3696	RdrCEF.exe	89
PID 3696 wrote to memory of 540	3696	RdrCEF.exe	89
PID 3696 wrote to memory of 540	3696	RdrCEF.exe	89
PID 3696 wrote to memory of 540	3696	RdrCEF.exe	89
PID 3696 wrote to memory of 540	3696	RdrCEF.exe	89
PID 3696 wrote to memory of 540	3696	RdrCEF.exe	89
PID 3696 wrote to memory of 540	3696	RdrCEF.exe	89
PID 3696 wrote to memory of 540	3696	RdrCEF.exe	89
PID 3696 wrote to memory of 540	3696	RdrCEF.exe	89
PID 3696 wrote to memory of 540	3696	RdrCEF.exe	89
PID 3696 wrote to memory of 540	3696	RdrCEF.exe	89
PID 3696 wrote to memory of 540	3696	RdrCEF.exe	89
PID 3696 wrote to memory of 540	3696	RdrCEF.exe	89
PID 3696 wrote to memory of 540	3696	RdrCEF.exe	89
PID 3696 wrote to memory of 540	3696	RdrCEF.exe	89
PID 3696 wrote to memory of 540	3696	RdrCEF.exe	89
PID 3696 wrote to memory of 540	3696	RdrCEF.exe	89
PID 3696 wrote to memory of 540	3696	RdrCEF.exe	89
PID 3696 wrote to memory of 540	3696	RdrCEF.exe	89
PID 3696 wrote to memory of 540	3696	RdrCEF.exe	89
PID 3696 wrote to memory of 540	3696	RdrCEF.exe	89
PID 3696 wrote to memory of 540	3696	RdrCEF.exe	89
PID 3696 wrote to memory of 4156	3696	RdrCEF.exe	90
PID 3696 wrote to memory of 4156	3696	RdrCEF.exe	90
PID 3696 wrote to memory of 4156	3696	RdrCEF.exe	90
PID 3696 wrote to memory of 4156	3696	RdrCEF.exe	90
PID 3696 wrote to memory of 4156	3696	RdrCEF.exe	90
PID 3696 wrote to memory of 4156	3696	RdrCEF.exe	90
PID 3696 wrote to memory of 4156	3696	RdrCEF.exe	90
PID 3696 wrote to memory of 4156	3696	RdrCEF.exe	90
PID 3696 wrote to memory of 4156	3696	RdrCEF.exe	90
PID 3696 wrote to memory of 4156	3696	RdrCEF.exe	90
PID 3696 wrote to memory of 4156	3696	RdrCEF.exe	90
PID 3696 wrote to memory of 4156	3696	RdrCEF.exe	90
PID 3696 wrote to memory of 4156	3696	RdrCEF.exe	90
PID 3696 wrote to memory of 4156	3696	RdrCEF.exe	90
PID 3696 wrote to memory of 4156	3696	RdrCEF.exe	90
PID 3696 wrote to memory of 4156	3696	RdrCEF.exe	90
PID 3696 wrote to memory of 4156	3696	RdrCEF.exe	90
PID 3696 wrote to memory of 4156	3696	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\RIMESSA_CASSEGNI21032023-8608.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:1100
- 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:3696
- - 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=379CD39470D6C4DB93442F8B45BE2D94 --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=379CD39470D6C4DB93442F8B45BE2D94 --renderer-client-id=2 --mojo-platform-channel-handle=1728 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:540
- - 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=D235D4259CBF323230666D339E2B49D1 --mojo-platform-channel-handle=1736 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    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=A085CBB44DA6C27ADB14616CC7A87F6C --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=A085CBB44DA6C27ADB14616CC7A87F6C --renderer-client-id=4 --mojo-platform-channel-handle=2160 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:968
- - 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=962A19585AC769B9A961E9D53EBBA303 --mojo-platform-channel-handle=2420 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:544
- - 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=0F8515585399A64AAAE3A0B9B2B14FB9 --mojo-platform-channel-handle=2124 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1140
- - 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=6719FDD4F1281BE0EDC6474B43515C82 --mojo-platform-channel-handle=2280 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4392

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
63b1b29db5ecfee37003feea721e1dff

SHA1
f266a120f81a40076f22294d21d24bf4562b3bfe

SHA256
305161fbc979750c7d34062fa0b468662276252c935a0e884867f7fff6199500

SHA512
19a48d20d8b8986fce17a3f37b3400734de1d2f690c108d339a87521b67562dcefc12a939a471c32a2da6a2c4ec3e96bad5b3094e050beb2e0777a0aa20c3baa

Download Submit