5199637a4db32cc37774081b6d3d61dab8285fe4d7b438eebfaa874e3a77b39b

Analysis

max time kernel
15s
max time network
148s
platform
windows11-21h2_x64
resource
win11-20231215-en
resource tags

arch:x64arch:x86image:win11-20231215-enlocale:en-usos:windows11-21h2-x64system
submitted
22/12/2023, 20:02

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General

Target

MicrosoftIRMServices Protected PDF.pdf
Size

668KB
MD5

1b09739302aaea6601932ac9faf36009
SHA1

cf248d08914d07371ddf15456251a372fc5fcd5d
SHA256

c876e1b637a1003353d44a6d1fbb8b9eb02736280a45c0dcae60af39b64157a2
SHA512

825cc145e587863579d3755077d7a5909e9c9247e9bab25989ca1f3817588f03064f6365cef403f8a5d40116d65e87349fa465cec58d3272b1abdc5431c60965
SSDEEP

12288:kIgaoDg1YCNnDq4/BEthrqhjKk2uX9cR0PpeJYR9P5m19f9Qmb8+flCrYS/:kIgaT1JDqyGthuhjDjGR0PpJy/rb8+fo

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-1-5-21-1725696949-2443092314-1471438111-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
888	AcroRd32.exe
888	AcroRd32.exe
888	AcroRd32.exe
888	AcroRd32.exe
888	AcroRd32.exe
888	AcroRd32.exe
888	AcroRd32.exe
888	AcroRd32.exe
888	AcroRd32.exe
888	AcroRd32.exe
888	AcroRd32.exe
888	AcroRd32.exe
888	AcroRd32.exe
888	AcroRd32.exe
888	AcroRd32.exe
888	AcroRd32.exe
888	AcroRd32.exe
888	AcroRd32.exe
888	AcroRd32.exe
888	AcroRd32.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
888	AcroRd32.exe
888	AcroRd32.exe
888	AcroRd32.exe
888	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 888 wrote to memory of 4568	888	AcroRd32.exe	77
PID 888 wrote to memory of 4568	888	AcroRd32.exe	77
PID 888 wrote to memory of 4568	888	AcroRd32.exe	77
PID 4568 wrote to memory of 2420	4568	RdrCEF.exe	79
PID 4568 wrote to memory of 2420	4568	RdrCEF.exe	79
PID 4568 wrote to memory of 2420	4568	RdrCEF.exe	79
PID 4568 wrote to memory of 2420	4568	RdrCEF.exe	79
PID 4568 wrote to memory of 2420	4568	RdrCEF.exe	79
PID 4568 wrote to memory of 2420	4568	RdrCEF.exe	79
PID 4568 wrote to memory of 2420	4568	RdrCEF.exe	79
PID 4568 wrote to memory of 2420	4568	RdrCEF.exe	79
PID 4568 wrote to memory of 2420	4568	RdrCEF.exe	79
PID 4568 wrote to memory of 2420	4568	RdrCEF.exe	79
PID 4568 wrote to memory of 2420	4568	RdrCEF.exe	79
PID 4568 wrote to memory of 2420	4568	RdrCEF.exe	79
PID 4568 wrote to memory of 2420	4568	RdrCEF.exe	79
PID 4568 wrote to memory of 2420	4568	RdrCEF.exe	79
PID 4568 wrote to memory of 2420	4568	RdrCEF.exe	79
PID 4568 wrote to memory of 2420	4568	RdrCEF.exe	79
PID 4568 wrote to memory of 2420	4568	RdrCEF.exe	79
PID 4568 wrote to memory of 2420	4568	RdrCEF.exe	79
PID 4568 wrote to memory of 2420	4568	RdrCEF.exe	79
PID 4568 wrote to memory of 2420	4568	RdrCEF.exe	79
PID 4568 wrote to memory of 2420	4568	RdrCEF.exe	79
PID 4568 wrote to memory of 2420	4568	RdrCEF.exe	79
PID 4568 wrote to memory of 2420	4568	RdrCEF.exe	79
PID 4568 wrote to memory of 2420	4568	RdrCEF.exe	79
PID 4568 wrote to memory of 2420	4568	RdrCEF.exe	79
PID 4568 wrote to memory of 2420	4568	RdrCEF.exe	79
PID 4568 wrote to memory of 2420	4568	RdrCEF.exe	79
PID 4568 wrote to memory of 2420	4568	RdrCEF.exe	79
PID 4568 wrote to memory of 2420	4568	RdrCEF.exe	79
PID 4568 wrote to memory of 2420	4568	RdrCEF.exe	79
PID 4568 wrote to memory of 2420	4568	RdrCEF.exe	79
PID 4568 wrote to memory of 2420	4568	RdrCEF.exe	79
PID 4568 wrote to memory of 2420	4568	RdrCEF.exe	79
PID 4568 wrote to memory of 2420	4568	RdrCEF.exe	79
PID 4568 wrote to memory of 2420	4568	RdrCEF.exe	79
PID 4568 wrote to memory of 2420	4568	RdrCEF.exe	79
PID 4568 wrote to memory of 2420	4568	RdrCEF.exe	79
PID 4568 wrote to memory of 2420	4568	RdrCEF.exe	79
PID 4568 wrote to memory of 2420	4568	RdrCEF.exe	79
PID 4568 wrote to memory of 2420	4568	RdrCEF.exe	79
PID 4568 wrote to memory of 2420	4568	RdrCEF.exe	79
PID 4568 wrote to memory of 4056	4568	RdrCEF.exe	78
PID 4568 wrote to memory of 4056	4568	RdrCEF.exe	78
PID 4568 wrote to memory of 4056	4568	RdrCEF.exe	78
PID 4568 wrote to memory of 4056	4568	RdrCEF.exe	78
PID 4568 wrote to memory of 4056	4568	RdrCEF.exe	78
PID 4568 wrote to memory of 4056	4568	RdrCEF.exe	78
PID 4568 wrote to memory of 4056	4568	RdrCEF.exe	78
PID 4568 wrote to memory of 4056	4568	RdrCEF.exe	78
PID 4568 wrote to memory of 4056	4568	RdrCEF.exe	78
PID 4568 wrote to memory of 4056	4568	RdrCEF.exe	78
PID 4568 wrote to memory of 4056	4568	RdrCEF.exe	78
PID 4568 wrote to memory of 4056	4568	RdrCEF.exe	78
PID 4568 wrote to memory of 4056	4568	RdrCEF.exe	78
PID 4568 wrote to memory of 4056	4568	RdrCEF.exe	78
PID 4568 wrote to memory of 4056	4568	RdrCEF.exe	78
PID 4568 wrote to memory of 4056	4568	RdrCEF.exe	78
PID 4568 wrote to memory of 4056	4568	RdrCEF.exe	78
PID 4568 wrote to memory of 4056	4568	RdrCEF.exe	78
PID 4568 wrote to memory of 4056	4568	RdrCEF.exe	78
PID 4568 wrote to memory of 4056	4568	RdrCEF.exe	78

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\MicrosoftIRMServices Protected PDF.pdf"
1⤵
- Checks processor information in registry
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:888
- 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:4568
- - 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=B1B3DD453029518C495F12C0B676384A --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=B1B3DD453029518C495F12C0B676384A --renderer-client-id=2 --mojo-platform-channel-handle=1752 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4056
- - 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=0BAC48BEB4C8F9BD1BC4DFBE3A79D02A --mojo-platform-channel-handle=1740 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2420
- - 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=08470D904D89E9B408B5A84F17D5308D --mojo-platform-channel-handle=2288 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3980
- - 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=27FF78B9BEF836FD923DE8C249E1CB6B --mojo-platform-channel-handle=2400 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3572
- - 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=65010246D1457566DB7F21F82017C5A5 --mojo-platform-channel-handle=2532 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3808
- - 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=1DE9F4A4AF7D7402CF8852E9F5288906 --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=1DE9F4A4AF7D7402CF8852E9F5288906 --renderer-client-id=8 --mojo-platform-channel-handle=1592 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:2740

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:4200

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

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Downloads

C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\ReaderMessages

Filesize
32KB

MD5
b52d8dc16caa1430e15196cebb821b63

SHA1
ca5e55a6df6e45a5f8f7f0802799be7b1025a3ec

SHA256
3319842a02cfff99a3e55317f52585c9642faa0b5759f32689527e2c3f82ddfa

SHA512
f3f65c63d87f1b78dda241ae6108c3cd037ef627d9f85e9e4b25397c8061f01d7762a7d7e60691910402481ca3d233984c293f7a0b1d3a34892746335c68eed6

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
48KB

MD5
9c8e1ea1ce2df8d4c21aa536743851e0

SHA1
daef6be63a0e4f672bfbbe9cfc58312f23945969

SHA256
3fca4af77cafb03d4f93d32bec15deaee7f91f3046c7daddc94fb14a032a4294

SHA512
07e7e53d6bf8980849375c89f6864190eb665083651a24658c16b6e87adb78b49867b27949ce169375630b095e8726620f55cd1ba815006dee9ee5c7fa314891

Download Submit