646c0d36e8855edf353b5f4ea12a029c2e761f6f92ead54853109ec62ce24b87

Analysis

max time kernel
141s
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
08/01/2024, 18:10

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General

Target

4c1e203fb17880244884da02a95e6d70.pdf
Size

46KB
MD5

4c1e203fb17880244884da02a95e6d70
SHA1

4ebe3092011e6eba1d83f681c8bd4d7fe00c6266
SHA256

646c0d36e8855edf353b5f4ea12a029c2e761f6f92ead54853109ec62ce24b87
SHA512

bb4acbf7e9fb64bdbcb81b8758ea59ace58a562c227a5993ac1e0cfc894e85e82ebb4c01644a6ecfea8bfb0d3cdd4f1e48336c740a29473740f347cccb5f41fb
SSDEEP

768:LgGzpDd574bbXApPOX3DGwWY5yeZld98PrQjvFtE8iLk40cAy:0GFRyPAspR5yeZloPrQjvFC8ig7cAy

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-1-5-21-1232405761-1209240240-3206092754-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
1388	AcroRd32.exe
1388	AcroRd32.exe
1388	AcroRd32.exe
1388	AcroRd32.exe
1388	AcroRd32.exe
1388	AcroRd32.exe
1388	AcroRd32.exe
1388	AcroRd32.exe
1388	AcroRd32.exe
1388	AcroRd32.exe
1388	AcroRd32.exe
1388	AcroRd32.exe
1388	AcroRd32.exe
1388	AcroRd32.exe
1388	AcroRd32.exe
1388	AcroRd32.exe
1388	AcroRd32.exe
1388	AcroRd32.exe
1388	AcroRd32.exe
1388	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1388	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
1388	AcroRd32.exe
1388	AcroRd32.exe
1388	AcroRd32.exe
1388	AcroRd32.exe
1388	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 1388 wrote to memory of 4664	1388	AcroRd32.exe	92
PID 1388 wrote to memory of 4664	1388	AcroRd32.exe	92
PID 1388 wrote to memory of 4664	1388	AcroRd32.exe	92
PID 4664 wrote to memory of 2420	4664	RdrCEF.exe	93
PID 4664 wrote to memory of 2420	4664	RdrCEF.exe	93
PID 4664 wrote to memory of 2420	4664	RdrCEF.exe	93
PID 4664 wrote to memory of 2420	4664	RdrCEF.exe	93
PID 4664 wrote to memory of 2420	4664	RdrCEF.exe	93
PID 4664 wrote to memory of 2420	4664	RdrCEF.exe	93
PID 4664 wrote to memory of 2420	4664	RdrCEF.exe	93
PID 4664 wrote to memory of 2420	4664	RdrCEF.exe	93
PID 4664 wrote to memory of 2420	4664	RdrCEF.exe	93
PID 4664 wrote to memory of 2420	4664	RdrCEF.exe	93
PID 4664 wrote to memory of 2420	4664	RdrCEF.exe	93
PID 4664 wrote to memory of 2420	4664	RdrCEF.exe	93
PID 4664 wrote to memory of 2420	4664	RdrCEF.exe	93
PID 4664 wrote to memory of 2420	4664	RdrCEF.exe	93
PID 4664 wrote to memory of 2420	4664	RdrCEF.exe	93
PID 4664 wrote to memory of 2420	4664	RdrCEF.exe	93
PID 4664 wrote to memory of 2420	4664	RdrCEF.exe	93
PID 4664 wrote to memory of 2420	4664	RdrCEF.exe	93
PID 4664 wrote to memory of 2420	4664	RdrCEF.exe	93
PID 4664 wrote to memory of 2420	4664	RdrCEF.exe	93
PID 4664 wrote to memory of 2420	4664	RdrCEF.exe	93
PID 4664 wrote to memory of 2420	4664	RdrCEF.exe	93
PID 4664 wrote to memory of 2420	4664	RdrCEF.exe	93
PID 4664 wrote to memory of 2420	4664	RdrCEF.exe	93
PID 4664 wrote to memory of 2420	4664	RdrCEF.exe	93
PID 4664 wrote to memory of 2420	4664	RdrCEF.exe	93
PID 4664 wrote to memory of 2420	4664	RdrCEF.exe	93
PID 4664 wrote to memory of 2420	4664	RdrCEF.exe	93
PID 4664 wrote to memory of 2420	4664	RdrCEF.exe	93
PID 4664 wrote to memory of 2420	4664	RdrCEF.exe	93
PID 4664 wrote to memory of 2420	4664	RdrCEF.exe	93
PID 4664 wrote to memory of 2420	4664	RdrCEF.exe	93
PID 4664 wrote to memory of 2420	4664	RdrCEF.exe	93
PID 4664 wrote to memory of 2420	4664	RdrCEF.exe	93
PID 4664 wrote to memory of 2420	4664	RdrCEF.exe	93
PID 4664 wrote to memory of 2420	4664	RdrCEF.exe	93
PID 4664 wrote to memory of 2420	4664	RdrCEF.exe	93
PID 4664 wrote to memory of 2420	4664	RdrCEF.exe	93
PID 4664 wrote to memory of 2420	4664	RdrCEF.exe	93
PID 4664 wrote to memory of 2420	4664	RdrCEF.exe	93
PID 4664 wrote to memory of 2420	4664	RdrCEF.exe	93
PID 4664 wrote to memory of 4836	4664	RdrCEF.exe	94
PID 4664 wrote to memory of 4836	4664	RdrCEF.exe	94
PID 4664 wrote to memory of 4836	4664	RdrCEF.exe	94
PID 4664 wrote to memory of 4836	4664	RdrCEF.exe	94
PID 4664 wrote to memory of 4836	4664	RdrCEF.exe	94
PID 4664 wrote to memory of 4836	4664	RdrCEF.exe	94
PID 4664 wrote to memory of 4836	4664	RdrCEF.exe	94
PID 4664 wrote to memory of 4836	4664	RdrCEF.exe	94
PID 4664 wrote to memory of 4836	4664	RdrCEF.exe	94
PID 4664 wrote to memory of 4836	4664	RdrCEF.exe	94
PID 4664 wrote to memory of 4836	4664	RdrCEF.exe	94
PID 4664 wrote to memory of 4836	4664	RdrCEF.exe	94
PID 4664 wrote to memory of 4836	4664	RdrCEF.exe	94
PID 4664 wrote to memory of 4836	4664	RdrCEF.exe	94
PID 4664 wrote to memory of 4836	4664	RdrCEF.exe	94
PID 4664 wrote to memory of 4836	4664	RdrCEF.exe	94
PID 4664 wrote to memory of 4836	4664	RdrCEF.exe	94
PID 4664 wrote to memory of 4836	4664	RdrCEF.exe	94
PID 4664 wrote to memory of 4836	4664	RdrCEF.exe	94
PID 4664 wrote to memory of 4836	4664	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\4c1e203fb17880244884da02a95e6d70.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:1388
- 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:4664
- - 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=C2E211F4761469E45BA8AA338845EAED --mojo-platform-channel-handle=1748 --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=renderer --disable-browser-side-navigation --disable-gpu-compositing --service-pipe-token=F5A564A8B8A12323C7CE88CF879FBB5A --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=F5A564A8B8A12323C7CE88CF879FBB5A --renderer-client-id=2 --mojo-platform-channel-handle=1764 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4836
- - 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=305D3E28BD1F04B9D1B266B3EC048202 --mojo-platform-channel-handle=2156 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:704
- - 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=6A6B2AB553E23F565CC9A5EFF8D8351E --mojo-platform-channel-handle=2328 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2980
- - 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=E4D9B26069AA7CEDDC531649A5B57A66 --mojo-platform-channel-handle=1912 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4936
- - 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=46993342C76487AC50994A89EE70EDF5 --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=46993342C76487AC50994A89EE70EDF5 --renderer-client-id=7 --mojo-platform-channel-handle=1988 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:3128

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:672

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
3917a61388664bd3922443d692e77528

SHA1
4ffb059a53e3021714e506007bdccfca60c45572

SHA256
2811b2c3f78d181d7b5cb65db1602880f2bd3288939fd75250bc3c6445983a37

SHA512
e279f9bffe819b4e9b2564d71b633c517683ba99495d78bce1f37b19a4f2d41227aa0b55a0e1ff0a76ded38b2342f4c32e70a7ba95e07137d05e88d2d000f838

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

Filesize
56KB

MD5
c26ed30e7d5ab440480838636efc41db

SHA1
c66e0d00b56abebfb60d2fcc5cf85ad31a0d6591

SHA256
6a3c5c4a8e57f77ecc22078fbf603ecc31fb82d429bd87b7b4b9261447092aef

SHA512
96cdb78bca3e01d4513c31661987e5646e6a8ff24708918aa0d66dfa3ca5d98af4862c9f38c4f41f933c345d2d3adfb1d34d1430b33f45f916f41a9872a030df

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

Filesize
56KB

MD5
752a1f26b18748311b691c7d8fc20633

SHA1
c1f8e83eebc1cc1e9b88c773338eb09ff82ab862

SHA256
111dac2948e4cecb10b0d2e10d8afaa663d78d643826b592d6414a1fd77cc131

SHA512
a2f5f262faf2c3e9756da94b2c47787ce3a9391b5bd53581578aa9a764449e114836704d6dec4aadc097fed4c818831baa11affa1eb25be2bfad9349bb090fe5

Download Submit
memory/1388-27-0x000000000B0F0000-0x000000000B111000-memory.dmp

Filesize
132KB

Download
memory/1388-125-0x000000000A120000-0x000000000A170000-memory.dmp

Filesize
320KB

Download
memory/1388-137-0x000000000A120000-0x000000000A170000-memory.dmp

Filesize
320KB

Download
memory/1388-144-0x000000000A120000-0x000000000A170000-memory.dmp

Filesize
320KB

Download
memory/1388-200-0x000000000A120000-0x000000000A170000-memory.dmp

Filesize
320KB

Download
memory/1388-207-0x000000000A120000-0x000000000A170000-memory.dmp

Filesize
320KB

Download