468d43e1308cfbce75402ecab024ce26ca0cf2837bcb68e40a85a780ec25f563

Analysis

max time kernel
141s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
31/05/2023, 15:00

Sharing

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General

Target

inv_658677_18052023.pdf
Size

205KB
MD5

39fdc064f4cec537f761f279a9b4bae8
SHA1

6a45ccbeb0b85c1eaaeac77db11dee869760d8de
SHA256

468d43e1308cfbce75402ecab024ce26ca0cf2837bcb68e40a85a780ec25f563
SHA512

974891c30f35e84cb1678003b73e083db68ad6a2d3fcb9292bd618ea4f14edb0f240442fa69857b6fb7a16144a662a9b7ec6d07b0d33dcdfced2fe1b33135058
SSDEEP

6144:nnFzFG5sza9iiJwtHak/znyHNeEIwpgw/+:xFG5joiwtXDkvG

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
3700	AcroRd32.exe
3700	AcroRd32.exe
3700	AcroRd32.exe
3700	AcroRd32.exe
3700	AcroRd32.exe
3700	AcroRd32.exe
3700	AcroRd32.exe
3700	AcroRd32.exe
3700	AcroRd32.exe
3700	AcroRd32.exe
3700	AcroRd32.exe
3700	AcroRd32.exe
3700	AcroRd32.exe
3700	AcroRd32.exe
3700	AcroRd32.exe
3700	AcroRd32.exe
3700	AcroRd32.exe
3700	AcroRd32.exe
3700	AcroRd32.exe
3700	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3700	AcroRd32.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
3700	AcroRd32.exe
3700	AcroRd32.exe
3700	AcroRd32.exe
3700	AcroRd32.exe
3700	AcroRd32.exe
3700	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 3700 wrote to memory of 4748	3700	AcroRd32.exe	84
PID 3700 wrote to memory of 4748	3700	AcroRd32.exe	84
PID 3700 wrote to memory of 4748	3700	AcroRd32.exe	84
PID 4748 wrote to memory of 2596	4748	RdrCEF.exe	85
PID 4748 wrote to memory of 2596	4748	RdrCEF.exe	85
PID 4748 wrote to memory of 2596	4748	RdrCEF.exe	85
PID 4748 wrote to memory of 2596	4748	RdrCEF.exe	85
PID 4748 wrote to memory of 2596	4748	RdrCEF.exe	85
PID 4748 wrote to memory of 2596	4748	RdrCEF.exe	85
PID 4748 wrote to memory of 2596	4748	RdrCEF.exe	85
PID 4748 wrote to memory of 2596	4748	RdrCEF.exe	85
PID 4748 wrote to memory of 2596	4748	RdrCEF.exe	85
PID 4748 wrote to memory of 2596	4748	RdrCEF.exe	85
PID 4748 wrote to memory of 2596	4748	RdrCEF.exe	85
PID 4748 wrote to memory of 2596	4748	RdrCEF.exe	85
PID 4748 wrote to memory of 2596	4748	RdrCEF.exe	85
PID 4748 wrote to memory of 2596	4748	RdrCEF.exe	85
PID 4748 wrote to memory of 2596	4748	RdrCEF.exe	85
PID 4748 wrote to memory of 2596	4748	RdrCEF.exe	85
PID 4748 wrote to memory of 2596	4748	RdrCEF.exe	85
PID 4748 wrote to memory of 2596	4748	RdrCEF.exe	85
PID 4748 wrote to memory of 2596	4748	RdrCEF.exe	85
PID 4748 wrote to memory of 2596	4748	RdrCEF.exe	85
PID 4748 wrote to memory of 2596	4748	RdrCEF.exe	85
PID 4748 wrote to memory of 2596	4748	RdrCEF.exe	85
PID 4748 wrote to memory of 2596	4748	RdrCEF.exe	85
PID 4748 wrote to memory of 2596	4748	RdrCEF.exe	85
PID 4748 wrote to memory of 2596	4748	RdrCEF.exe	85
PID 4748 wrote to memory of 2596	4748	RdrCEF.exe	85
PID 4748 wrote to memory of 2596	4748	RdrCEF.exe	85
PID 4748 wrote to memory of 2596	4748	RdrCEF.exe	85
PID 4748 wrote to memory of 2596	4748	RdrCEF.exe	85
PID 4748 wrote to memory of 2596	4748	RdrCEF.exe	85
PID 4748 wrote to memory of 2596	4748	RdrCEF.exe	85
PID 4748 wrote to memory of 2596	4748	RdrCEF.exe	85
PID 4748 wrote to memory of 2596	4748	RdrCEF.exe	85
PID 4748 wrote to memory of 2596	4748	RdrCEF.exe	85
PID 4748 wrote to memory of 2596	4748	RdrCEF.exe	85
PID 4748 wrote to memory of 2596	4748	RdrCEF.exe	85
PID 4748 wrote to memory of 2596	4748	RdrCEF.exe	85
PID 4748 wrote to memory of 2596	4748	RdrCEF.exe	85
PID 4748 wrote to memory of 2596	4748	RdrCEF.exe	85
PID 4748 wrote to memory of 2596	4748	RdrCEF.exe	85
PID 4748 wrote to memory of 2596	4748	RdrCEF.exe	85
PID 4748 wrote to memory of 4184	4748	RdrCEF.exe	86
PID 4748 wrote to memory of 4184	4748	RdrCEF.exe	86
PID 4748 wrote to memory of 4184	4748	RdrCEF.exe	86
PID 4748 wrote to memory of 4184	4748	RdrCEF.exe	86
PID 4748 wrote to memory of 4184	4748	RdrCEF.exe	86
PID 4748 wrote to memory of 4184	4748	RdrCEF.exe	86
PID 4748 wrote to memory of 4184	4748	RdrCEF.exe	86
PID 4748 wrote to memory of 4184	4748	RdrCEF.exe	86
PID 4748 wrote to memory of 4184	4748	RdrCEF.exe	86
PID 4748 wrote to memory of 4184	4748	RdrCEF.exe	86
PID 4748 wrote to memory of 4184	4748	RdrCEF.exe	86
PID 4748 wrote to memory of 4184	4748	RdrCEF.exe	86
PID 4748 wrote to memory of 4184	4748	RdrCEF.exe	86
PID 4748 wrote to memory of 4184	4748	RdrCEF.exe	86
PID 4748 wrote to memory of 4184	4748	RdrCEF.exe	86
PID 4748 wrote to memory of 4184	4748	RdrCEF.exe	86
PID 4748 wrote to memory of 4184	4748	RdrCEF.exe	86
PID 4748 wrote to memory of 4184	4748	RdrCEF.exe	86
PID 4748 wrote to memory of 4184	4748	RdrCEF.exe	86
PID 4748 wrote to memory of 4184	4748	RdrCEF.exe	86

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\inv_658677_18052023.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:3700
- 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:4748
- - 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=A31B74EE77AF23C46AAABAF85631AC60 --mojo-platform-channel-handle=1748 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2596
- - 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=E27880E20027B3C3D2AEBC8753D5BD09 --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=E27880E20027B3C3D2AEBC8753D5BD09 --renderer-client-id=2 --mojo-platform-channel-handle=1756 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4184
- - 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=47D67F90ACB55495A3DE93D2B0EF3477 --mojo-platform-channel-handle=2316 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4300
- - 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=9A295CEFEE3A6C4D92E794791FDDD0E3 --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=9A295CEFEE3A6C4D92E794791FDDD0E3 --renderer-client-id=5 --mojo-platform-channel-handle=1820 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:3924
- - 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=C311BC41766B45B7D2EFAC0B1228CCAD --mojo-platform-channel-handle=1860 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1708
- - 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=55302449A33609B72F9208CCF6CCFF2F --mojo-platform-channel-handle=2664 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:436

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:3468

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
e44a51d47dec7e83422878622483edb4

SHA1
abefc0a73f88273f82e1f4a60a096cb2579cbaef

SHA256
49f55361a6777f199f61db539249964dbd9ead0a2461cf0fcf96a55ee2672e15

SHA512
06b33cd6effaf4f7e73dc1f128030b4d332e93d9c0678cb5ca6026f66fffb88b7d5738f44c0b907732761e0400b6a5804571b2e2d72ca27551bd1686677c1bae

Download Submit