858f65e3a19623b396a1d0623cbd3b7099d3ebf6e6bd829b4fed80f1aa1a4a18

Analysis

max time kernel
142s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
25/01/2024, 20:17

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General

Target

756c0ba65ad7ff62d4fa9df9c9371b5f.pdf
Size

86KB
MD5

756c0ba65ad7ff62d4fa9df9c9371b5f
SHA1

b8a04bc9ed3c0b835f9c7090eae4660d8a65b2b6
SHA256

858f65e3a19623b396a1d0623cbd3b7099d3ebf6e6bd829b4fed80f1aa1a4a18
SHA512

cf80905544ce1db83dc7ad7e98f40bfdc670a1f4ee3614166ff16d35fad056901b5c1da4ead306ff8d2bed0b4640c8acf24fffe8acbd0b76fbb380f797063bf8
SSDEEP

1536:JWKky7WsCzPI1UYkOlYlIjrAHvgKsSRYi//bcvTWspOL4Wshs623S5c6MrJR3D:YKZ7QzSzalIYPgKJRYKbSiLYs623S5cb

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-1-5-21-1815711207-1844170477-3539718864-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
1180	AcroRd32.exe
1180	AcroRd32.exe
1180	AcroRd32.exe
1180	AcroRd32.exe
1180	AcroRd32.exe
1180	AcroRd32.exe
1180	AcroRd32.exe
1180	AcroRd32.exe
1180	AcroRd32.exe
1180	AcroRd32.exe
1180	AcroRd32.exe
1180	AcroRd32.exe
1180	AcroRd32.exe
1180	AcroRd32.exe
1180	AcroRd32.exe
1180	AcroRd32.exe
1180	AcroRd32.exe
1180	AcroRd32.exe
1180	AcroRd32.exe
1180	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1180	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
1180	AcroRd32.exe
1180	AcroRd32.exe
1180	AcroRd32.exe
1180	AcroRd32.exe
1180	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 1180 wrote to memory of 5104	1180	AcroRd32.exe	91
PID 1180 wrote to memory of 5104	1180	AcroRd32.exe	91
PID 1180 wrote to memory of 5104	1180	AcroRd32.exe	91
PID 5104 wrote to memory of 5096	5104	RdrCEF.exe	93
PID 5104 wrote to memory of 5096	5104	RdrCEF.exe	93
PID 5104 wrote to memory of 5096	5104	RdrCEF.exe	93
PID 5104 wrote to memory of 5096	5104	RdrCEF.exe	93
PID 5104 wrote to memory of 5096	5104	RdrCEF.exe	93
PID 5104 wrote to memory of 5096	5104	RdrCEF.exe	93
PID 5104 wrote to memory of 5096	5104	RdrCEF.exe	93
PID 5104 wrote to memory of 5096	5104	RdrCEF.exe	93
PID 5104 wrote to memory of 5096	5104	RdrCEF.exe	93
PID 5104 wrote to memory of 5096	5104	RdrCEF.exe	93
PID 5104 wrote to memory of 5096	5104	RdrCEF.exe	93
PID 5104 wrote to memory of 5096	5104	RdrCEF.exe	93
PID 5104 wrote to memory of 5096	5104	RdrCEF.exe	93
PID 5104 wrote to memory of 5096	5104	RdrCEF.exe	93
PID 5104 wrote to memory of 5096	5104	RdrCEF.exe	93
PID 5104 wrote to memory of 5096	5104	RdrCEF.exe	93
PID 5104 wrote to memory of 5096	5104	RdrCEF.exe	93
PID 5104 wrote to memory of 5096	5104	RdrCEF.exe	93
PID 5104 wrote to memory of 5096	5104	RdrCEF.exe	93
PID 5104 wrote to memory of 5096	5104	RdrCEF.exe	93
PID 5104 wrote to memory of 5096	5104	RdrCEF.exe	93
PID 5104 wrote to memory of 5096	5104	RdrCEF.exe	93
PID 5104 wrote to memory of 5096	5104	RdrCEF.exe	93
PID 5104 wrote to memory of 5096	5104	RdrCEF.exe	93
PID 5104 wrote to memory of 5096	5104	RdrCEF.exe	93
PID 5104 wrote to memory of 5096	5104	RdrCEF.exe	93
PID 5104 wrote to memory of 5096	5104	RdrCEF.exe	93
PID 5104 wrote to memory of 5096	5104	RdrCEF.exe	93
PID 5104 wrote to memory of 5096	5104	RdrCEF.exe	93
PID 5104 wrote to memory of 5096	5104	RdrCEF.exe	93
PID 5104 wrote to memory of 5096	5104	RdrCEF.exe	93
PID 5104 wrote to memory of 5096	5104	RdrCEF.exe	93
PID 5104 wrote to memory of 5096	5104	RdrCEF.exe	93
PID 5104 wrote to memory of 5096	5104	RdrCEF.exe	93
PID 5104 wrote to memory of 5096	5104	RdrCEF.exe	93
PID 5104 wrote to memory of 5096	5104	RdrCEF.exe	93
PID 5104 wrote to memory of 5096	5104	RdrCEF.exe	93
PID 5104 wrote to memory of 5096	5104	RdrCEF.exe	93
PID 5104 wrote to memory of 5096	5104	RdrCEF.exe	93
PID 5104 wrote to memory of 5096	5104	RdrCEF.exe	93
PID 5104 wrote to memory of 5096	5104	RdrCEF.exe	93
PID 5104 wrote to memory of 4472	5104	RdrCEF.exe	94
PID 5104 wrote to memory of 4472	5104	RdrCEF.exe	94
PID 5104 wrote to memory of 4472	5104	RdrCEF.exe	94
PID 5104 wrote to memory of 4472	5104	RdrCEF.exe	94
PID 5104 wrote to memory of 4472	5104	RdrCEF.exe	94
PID 5104 wrote to memory of 4472	5104	RdrCEF.exe	94
PID 5104 wrote to memory of 4472	5104	RdrCEF.exe	94
PID 5104 wrote to memory of 4472	5104	RdrCEF.exe	94
PID 5104 wrote to memory of 4472	5104	RdrCEF.exe	94
PID 5104 wrote to memory of 4472	5104	RdrCEF.exe	94
PID 5104 wrote to memory of 4472	5104	RdrCEF.exe	94
PID 5104 wrote to memory of 4472	5104	RdrCEF.exe	94
PID 5104 wrote to memory of 4472	5104	RdrCEF.exe	94
PID 5104 wrote to memory of 4472	5104	RdrCEF.exe	94
PID 5104 wrote to memory of 4472	5104	RdrCEF.exe	94
PID 5104 wrote to memory of 4472	5104	RdrCEF.exe	94
PID 5104 wrote to memory of 4472	5104	RdrCEF.exe	94
PID 5104 wrote to memory of 4472	5104	RdrCEF.exe	94
PID 5104 wrote to memory of 4472	5104	RdrCEF.exe	94
PID 5104 wrote to memory of 4472	5104	RdrCEF.exe	94

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\756c0ba65ad7ff62d4fa9df9c9371b5f.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:1180
- 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:5104
- - 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=F5B74E0F21EE6E37639AA47552A3FC39 --mojo-platform-channel-handle=1740 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:5096
- - 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=DFD2B98C81391C012842E017E3D036DF --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=DFD2B98C81391C012842E017E3D036DF --renderer-client-id=2 --mojo-platform-channel-handle=1748 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4472
- - 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=1AA9733E6B21BBB026D49B20FF7C9B34 --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=1AA9733E6B21BBB026D49B20FF7C9B34 --renderer-client-id=4 --mojo-platform-channel-handle=2304 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:2544
- - 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=4F1FD17CE33A6BC7A7531EC8324143F1 --mojo-platform-channel-handle=2544 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2424
- - 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=36F207EEF500FD2BBB9882C07F6C56E2 --mojo-platform-channel-handle=1960 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4896
- - 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=88AEA8A136564E41B730F44DC71A3B78 --mojo-platform-channel-handle=2608 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3324

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

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
aea49925f1431da840bed3931fd9ec00

SHA1
cc18a9dc0910e21009de4b41ede42b0c8de85428

SHA256
aca64606a67189bbdaeb252f65202208424859a026bbfbb87f280e5cad4868d3

SHA512
00430874334cddf352cf6fe00649ad1c862dbd482655f1554597e54134a2b52c99b7c869c1d4985f26adab31cce0e69ad4f5e22b411335bb06eff8faebce0dec

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