997f8f54a2549fc146920053d424135e1c43ead83fc5ec65a5f05dca97f37370

Analysis

max time kernel
144s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
30-12-2023 23:16

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General

Target

1fb8a133628ab6f91845531036ee11d0.pdf
Size

84KB
MD5

1fb8a133628ab6f91845531036ee11d0
SHA1

d059e865a03c1523dc3566b6334a089422a74fd9
SHA256

997f8f54a2549fc146920053d424135e1c43ead83fc5ec65a5f05dca97f37370
SHA512

80557306ec5d85d87d494d82279e158e6db3076fd94ae5897b07bcdf38c5610deafdc89c04c3e63ea925b60f8b7cfbc4f3afeb5553116bbfc27eae8ba7ee813b
SSDEEP

1536:c8g1i2mR3nmIQrLSft+shheFKfZ5C3sYkZpmJsW1RlOU7/mqhRYW6pOu2bTkfILC:dgHc39SSftthecfqNBRl//17hu2bTkff

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-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
3892	AcroRd32.exe
3892	AcroRd32.exe
3892	AcroRd32.exe
3892	AcroRd32.exe
3892	AcroRd32.exe
3892	AcroRd32.exe
3892	AcroRd32.exe
3892	AcroRd32.exe
3892	AcroRd32.exe
3892	AcroRd32.exe
3892	AcroRd32.exe
3892	AcroRd32.exe
3892	AcroRd32.exe
3892	AcroRd32.exe
3892	AcroRd32.exe
3892	AcroRd32.exe
3892	AcroRd32.exe
3892	AcroRd32.exe
3892	AcroRd32.exe
3892	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3892	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
3892	AcroRd32.exe
3892	AcroRd32.exe
3892	AcroRd32.exe
3892	AcroRd32.exe
3892	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 3892 wrote to memory of 2272	3892	AcroRd32.exe	90
PID 3892 wrote to memory of 2272	3892	AcroRd32.exe	90
PID 3892 wrote to memory of 2272	3892	AcroRd32.exe	90
PID 2272 wrote to memory of 1512	2272	RdrCEF.exe	103
PID 2272 wrote to memory of 1512	2272	RdrCEF.exe	103
PID 2272 wrote to memory of 1512	2272	RdrCEF.exe	103
PID 2272 wrote to memory of 1512	2272	RdrCEF.exe	103
PID 2272 wrote to memory of 1512	2272	RdrCEF.exe	103
PID 2272 wrote to memory of 1512	2272	RdrCEF.exe	103
PID 2272 wrote to memory of 1512	2272	RdrCEF.exe	103
PID 2272 wrote to memory of 1512	2272	RdrCEF.exe	103
PID 2272 wrote to memory of 1512	2272	RdrCEF.exe	103
PID 2272 wrote to memory of 1512	2272	RdrCEF.exe	103
PID 2272 wrote to memory of 1512	2272	RdrCEF.exe	103
PID 2272 wrote to memory of 1512	2272	RdrCEF.exe	103
PID 2272 wrote to memory of 1512	2272	RdrCEF.exe	103
PID 2272 wrote to memory of 1512	2272	RdrCEF.exe	103
PID 2272 wrote to memory of 1512	2272	RdrCEF.exe	103
PID 2272 wrote to memory of 1512	2272	RdrCEF.exe	103
PID 2272 wrote to memory of 1512	2272	RdrCEF.exe	103
PID 2272 wrote to memory of 1512	2272	RdrCEF.exe	103
PID 2272 wrote to memory of 1512	2272	RdrCEF.exe	103
PID 2272 wrote to memory of 1512	2272	RdrCEF.exe	103
PID 2272 wrote to memory of 1512	2272	RdrCEF.exe	103
PID 2272 wrote to memory of 1512	2272	RdrCEF.exe	103
PID 2272 wrote to memory of 1512	2272	RdrCEF.exe	103
PID 2272 wrote to memory of 1512	2272	RdrCEF.exe	103
PID 2272 wrote to memory of 1512	2272	RdrCEF.exe	103
PID 2272 wrote to memory of 1512	2272	RdrCEF.exe	103
PID 2272 wrote to memory of 1512	2272	RdrCEF.exe	103
PID 2272 wrote to memory of 1512	2272	RdrCEF.exe	103
PID 2272 wrote to memory of 1512	2272	RdrCEF.exe	103
PID 2272 wrote to memory of 1512	2272	RdrCEF.exe	103
PID 2272 wrote to memory of 1512	2272	RdrCEF.exe	103
PID 2272 wrote to memory of 1512	2272	RdrCEF.exe	103
PID 2272 wrote to memory of 1512	2272	RdrCEF.exe	103
PID 2272 wrote to memory of 1512	2272	RdrCEF.exe	103
PID 2272 wrote to memory of 1512	2272	RdrCEF.exe	103
PID 2272 wrote to memory of 1512	2272	RdrCEF.exe	103
PID 2272 wrote to memory of 1512	2272	RdrCEF.exe	103
PID 2272 wrote to memory of 1512	2272	RdrCEF.exe	103
PID 2272 wrote to memory of 1512	2272	RdrCEF.exe	103
PID 2272 wrote to memory of 1512	2272	RdrCEF.exe	103
PID 2272 wrote to memory of 1512	2272	RdrCEF.exe	103
PID 2272 wrote to memory of 4504	2272	RdrCEF.exe	91
PID 2272 wrote to memory of 4504	2272	RdrCEF.exe	91
PID 2272 wrote to memory of 4504	2272	RdrCEF.exe	91
PID 2272 wrote to memory of 4504	2272	RdrCEF.exe	91
PID 2272 wrote to memory of 4504	2272	RdrCEF.exe	91
PID 2272 wrote to memory of 4504	2272	RdrCEF.exe	91
PID 2272 wrote to memory of 4504	2272	RdrCEF.exe	91
PID 2272 wrote to memory of 4504	2272	RdrCEF.exe	91
PID 2272 wrote to memory of 4504	2272	RdrCEF.exe	91
PID 2272 wrote to memory of 4504	2272	RdrCEF.exe	91
PID 2272 wrote to memory of 4504	2272	RdrCEF.exe	91
PID 2272 wrote to memory of 4504	2272	RdrCEF.exe	91
PID 2272 wrote to memory of 4504	2272	RdrCEF.exe	91
PID 2272 wrote to memory of 4504	2272	RdrCEF.exe	91
PID 2272 wrote to memory of 4504	2272	RdrCEF.exe	91
PID 2272 wrote to memory of 4504	2272	RdrCEF.exe	91
PID 2272 wrote to memory of 4504	2272	RdrCEF.exe	91
PID 2272 wrote to memory of 4504	2272	RdrCEF.exe	91
PID 2272 wrote to memory of 4504	2272	RdrCEF.exe	91
PID 2272 wrote to memory of 4504	2272	RdrCEF.exe	91

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\1fb8a133628ab6f91845531036ee11d0.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:3892
- 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:2272
- - 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=601DF58B8D7B84A82C6F248A284FAF4B --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=601DF58B8D7B84A82C6F248A284FAF4B --renderer-client-id=2 --mojo-platform-channel-handle=1752 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4504
- - 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=A52061D0DF13CC62BB485B54A9B8B7BD --mojo-platform-channel-handle=1744 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1512
- - 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=1B5F2D3283BB681C2F15ABC450BCC52F --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=1B5F2D3283BB681C2F15ABC450BCC52F --renderer-client-id=5 --mojo-platform-channel-handle=2180 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:1240
- - 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=D4920332801BAF93EAA48D3F74A3E637 --mojo-platform-channel-handle=2324 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4828
- - 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=647E61760E9A0C9BDA92880D6FE989DE --mojo-platform-channel-handle=2568 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1608
- - 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=5FEB8C6F5C6633C6D2D3B3F08DE002A1 --mojo-platform-channel-handle=1964 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1948

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:3372

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s UsoSvc
1⤵
PID:1512

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
64KB

MD5
56b55331808eaf3de3c5854e9807ac58

SHA1
63ca36c98ca553ec2fccf1c6fb2e52474e23fba2

SHA256
6c81b74546e54d03641a8699db51c2b89963e02030337a707ca3310bb5541e95

SHA512
56755a361ea48474ca1b77d3904c13a839779c74ca6d10dc5acc4cd11e3cfba65c73d7d17832737127174dd3def68018b69d53a9054c044c88bbae96b0d64204

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
56KB

MD5
752a1f26b18748311b691c7d8fc20633

SHA1
c1f8e83eebc1cc1e9b88c773338eb09ff82ab862

SHA256
111dac2948e4cecb10b0d2e10d8afaa663d78d643826b592d6414a1fd77cc131

SHA512
a2f5f262faf2c3e9756da94b2c47787ce3a9391b5bd53581578aa9a764449e114836704d6dec4aadc097fed4c818831baa11affa1eb25be2bfad9349bb090fe5

Download Submit