23422b260879b4cfb3bf5b66eb171999548c3a2232a51dbd7d9c76a5d049907c

Analysis

max time kernel
153s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20230703-en
resource tags

arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
submitted
31-07-2023 21:59

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General

Target

MI158666.pdf
Size

424KB
MD5

7950abe820d930162c2bca1ded597d90
SHA1

24ac2ba2ee6ac8fe6ff24e06d1840f54ab74634f
SHA256

23422b260879b4cfb3bf5b66eb171999548c3a2232a51dbd7d9c76a5d049907c
SHA512

392da333ddd10b996edaa2b4c1bca17631bcf3e381548224a3d8af979f04253212f1fe15abb69d4f1cfabe5cc8080de264439676ae82d313cc1b67cc1f7be3cd
SSDEEP

12288:c1HU/BmhmwGYhijR9mKu69SDVr13SRVh7o3PEW0qWn:cxUcLgftu/ORVt6xWn

Score

1^/10

Malware Config

Signatures

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1498570331-2313266200-788959944-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
3376	AcroRd32.exe
3376	AcroRd32.exe
3376	AcroRd32.exe
3376	AcroRd32.exe
3376	AcroRd32.exe
3376	AcroRd32.exe
3376	AcroRd32.exe
3376	AcroRd32.exe
3376	AcroRd32.exe
3376	AcroRd32.exe
3376	AcroRd32.exe
3376	AcroRd32.exe
3376	AcroRd32.exe
3376	AcroRd32.exe
3376	AcroRd32.exe
3376	AcroRd32.exe
3376	AcroRd32.exe
3376	AcroRd32.exe
3376	AcroRd32.exe
3376	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3376	AcroRd32.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
3376	AcroRd32.exe
3376	AcroRd32.exe
3376	AcroRd32.exe
3376	AcroRd32.exe
3376	AcroRd32.exe
3376	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 3376 wrote to memory of 764	3376	AcroRd32.exe	90
PID 3376 wrote to memory of 764	3376	AcroRd32.exe	90
PID 3376 wrote to memory of 764	3376	AcroRd32.exe	90
PID 3376 wrote to memory of 2764	3376	AcroRd32.exe	92
PID 3376 wrote to memory of 2764	3376	AcroRd32.exe	92
PID 3376 wrote to memory of 2764	3376	AcroRd32.exe	92
PID 764 wrote to memory of 4852	764	RdrCEF.exe	95
PID 764 wrote to memory of 4852	764	RdrCEF.exe	95
PID 764 wrote to memory of 4852	764	RdrCEF.exe	95
PID 764 wrote to memory of 4852	764	RdrCEF.exe	95
PID 764 wrote to memory of 4852	764	RdrCEF.exe	95
PID 764 wrote to memory of 4852	764	RdrCEF.exe	95
PID 764 wrote to memory of 4852	764	RdrCEF.exe	95
PID 764 wrote to memory of 4852	764	RdrCEF.exe	95
PID 764 wrote to memory of 4852	764	RdrCEF.exe	95
PID 764 wrote to memory of 4852	764	RdrCEF.exe	95
PID 764 wrote to memory of 4852	764	RdrCEF.exe	95
PID 764 wrote to memory of 4852	764	RdrCEF.exe	95
PID 764 wrote to memory of 4852	764	RdrCEF.exe	95
PID 764 wrote to memory of 4852	764	RdrCEF.exe	95
PID 764 wrote to memory of 4852	764	RdrCEF.exe	95
PID 764 wrote to memory of 4852	764	RdrCEF.exe	95
PID 764 wrote to memory of 4852	764	RdrCEF.exe	95
PID 764 wrote to memory of 4852	764	RdrCEF.exe	95
PID 764 wrote to memory of 4852	764	RdrCEF.exe	95
PID 764 wrote to memory of 4852	764	RdrCEF.exe	95
PID 764 wrote to memory of 4852	764	RdrCEF.exe	95
PID 764 wrote to memory of 4852	764	RdrCEF.exe	95
PID 764 wrote to memory of 4852	764	RdrCEF.exe	95
PID 764 wrote to memory of 4852	764	RdrCEF.exe	95
PID 764 wrote to memory of 4852	764	RdrCEF.exe	95
PID 764 wrote to memory of 4852	764	RdrCEF.exe	95
PID 764 wrote to memory of 4852	764	RdrCEF.exe	95
PID 764 wrote to memory of 4852	764	RdrCEF.exe	95
PID 764 wrote to memory of 4852	764	RdrCEF.exe	95
PID 764 wrote to memory of 4852	764	RdrCEF.exe	95
PID 764 wrote to memory of 4852	764	RdrCEF.exe	95
PID 764 wrote to memory of 4852	764	RdrCEF.exe	95
PID 764 wrote to memory of 4852	764	RdrCEF.exe	95
PID 764 wrote to memory of 4852	764	RdrCEF.exe	95
PID 764 wrote to memory of 4852	764	RdrCEF.exe	95
PID 764 wrote to memory of 4852	764	RdrCEF.exe	95
PID 764 wrote to memory of 4852	764	RdrCEF.exe	95
PID 764 wrote to memory of 4852	764	RdrCEF.exe	95
PID 764 wrote to memory of 4852	764	RdrCEF.exe	95
PID 764 wrote to memory of 4852	764	RdrCEF.exe	95
PID 764 wrote to memory of 4852	764	RdrCEF.exe	95
PID 764 wrote to memory of 2592	764	RdrCEF.exe	96
PID 764 wrote to memory of 2592	764	RdrCEF.exe	96
PID 764 wrote to memory of 2592	764	RdrCEF.exe	96
PID 764 wrote to memory of 2592	764	RdrCEF.exe	96
PID 764 wrote to memory of 2592	764	RdrCEF.exe	96
PID 764 wrote to memory of 2592	764	RdrCEF.exe	96
PID 764 wrote to memory of 2592	764	RdrCEF.exe	96
PID 764 wrote to memory of 2592	764	RdrCEF.exe	96
PID 764 wrote to memory of 2592	764	RdrCEF.exe	96
PID 764 wrote to memory of 2592	764	RdrCEF.exe	96
PID 764 wrote to memory of 2592	764	RdrCEF.exe	96
PID 764 wrote to memory of 2592	764	RdrCEF.exe	96
PID 764 wrote to memory of 2592	764	RdrCEF.exe	96
PID 764 wrote to memory of 2592	764	RdrCEF.exe	96
PID 764 wrote to memory of 2592	764	RdrCEF.exe	96
PID 764 wrote to memory of 2592	764	RdrCEF.exe	96
PID 764 wrote to memory of 2592	764	RdrCEF.exe	96

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\MI158666.pdf"
1⤵
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3376
- 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:764
- - 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=23F2FDA131B2BC6C2955039A101329C8 --mojo-platform-channel-handle=1652 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4852
- - 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=1E17BA5ABEDDC641365078FEF7833FC8 --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=1E17BA5ABEDDC641365078FEF7833FC8 --renderer-client-id=2 --mojo-platform-channel-handle=1764 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:2592
- - 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=E0D13C0BA2CF1EAF2028ACB9405E6CEE --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=E0D13C0BA2CF1EAF2028ACB9405E6CEE --renderer-client-id=4 --mojo-platform-channel-handle=2168 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:3720
- - 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=E5587DE5225046047EE7C9E7D7D891C4 --mojo-platform-channel-handle=2564 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2432
- - 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=E8F68047162FEDBE78E61B061819CAB6 --mojo-platform-channel-handle=1820 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3788
- - 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=AEB0F6CDF765DE16CD76D64338874B3D --mojo-platform-channel-handle=2676 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3084
- 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⤵
  PID:2764

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:3460

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

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
b0319d369f07fe61c2ada103d693d3e3

SHA1
0637a53a464338c95b8ab76ae07e13bf58ca19ae

SHA256
a1e6fa3267265d23768a9c3ad1ef3ce45d3fe0e746e307b27998bcc5ec325e04

SHA512
419e46e2ce2c9ed1f2a86dd77369549c8664a1e9f10081272d956d5e62d2849bcc2ed077d6e8363f5878dc6eb509b1c95e7f58548cefe3199195f00d8b9fd795

Download Submit