89844ea41b061adeb35c67fbb9bc06ee93f8fe2087440ec33c783fb985ab6347

Analysis

max time kernel
143s
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
22/12/2023, 13:37

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General

Target

a820719cff8e1557ac88c97ff2e4b42c.pdf
Size

83KB
MD5

a820719cff8e1557ac88c97ff2e4b42c
SHA1

3ac2b49f7bf43a82fb9573c6a639f5131619b261
SHA256

89844ea41b061adeb35c67fbb9bc06ee93f8fe2087440ec33c783fb985ab6347
SHA512

633ba6b2c336608725b45d9c47a1632f2594f386de3eaefca2a2154bfd652674133dce7c8d4f2cd508f90b36e13f9bced807479f004964571cc19ea0bccb3b80
SSDEEP

1536:1DxC5D/41xs4Es45wrCp84F26RKRCn/iWeHE9mniOlTWApO6rZXUM:R8QgstCp8o26RKEnrmi+i6rZT

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
2368	AcroRd32.exe
2368	AcroRd32.exe
2368	AcroRd32.exe
2368	AcroRd32.exe
2368	AcroRd32.exe
2368	AcroRd32.exe
2368	AcroRd32.exe
2368	AcroRd32.exe
2368	AcroRd32.exe
2368	AcroRd32.exe
2368	AcroRd32.exe
2368	AcroRd32.exe
2368	AcroRd32.exe
2368	AcroRd32.exe
2368	AcroRd32.exe
2368	AcroRd32.exe
2368	AcroRd32.exe
2368	AcroRd32.exe
2368	AcroRd32.exe
2368	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2368	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
2368	AcroRd32.exe
2368	AcroRd32.exe
2368	AcroRd32.exe
2368	AcroRd32.exe
2368	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2368 wrote to memory of 2392	2368	AcroRd32.exe	90
PID 2368 wrote to memory of 2392	2368	AcroRd32.exe	90
PID 2368 wrote to memory of 2392	2368	AcroRd32.exe	90
PID 2392 wrote to memory of 4900	2392	RdrCEF.exe	91
PID 2392 wrote to memory of 4900	2392	RdrCEF.exe	91
PID 2392 wrote to memory of 4900	2392	RdrCEF.exe	91
PID 2392 wrote to memory of 4900	2392	RdrCEF.exe	91
PID 2392 wrote to memory of 4900	2392	RdrCEF.exe	91
PID 2392 wrote to memory of 4900	2392	RdrCEF.exe	91
PID 2392 wrote to memory of 4900	2392	RdrCEF.exe	91
PID 2392 wrote to memory of 4900	2392	RdrCEF.exe	91
PID 2392 wrote to memory of 4900	2392	RdrCEF.exe	91
PID 2392 wrote to memory of 4900	2392	RdrCEF.exe	91
PID 2392 wrote to memory of 4900	2392	RdrCEF.exe	91
PID 2392 wrote to memory of 4900	2392	RdrCEF.exe	91
PID 2392 wrote to memory of 4900	2392	RdrCEF.exe	91
PID 2392 wrote to memory of 4900	2392	RdrCEF.exe	91
PID 2392 wrote to memory of 4900	2392	RdrCEF.exe	91
PID 2392 wrote to memory of 4900	2392	RdrCEF.exe	91
PID 2392 wrote to memory of 4900	2392	RdrCEF.exe	91
PID 2392 wrote to memory of 4900	2392	RdrCEF.exe	91
PID 2392 wrote to memory of 4900	2392	RdrCEF.exe	91
PID 2392 wrote to memory of 4900	2392	RdrCEF.exe	91
PID 2392 wrote to memory of 4900	2392	RdrCEF.exe	91
PID 2392 wrote to memory of 4900	2392	RdrCEF.exe	91
PID 2392 wrote to memory of 4900	2392	RdrCEF.exe	91
PID 2392 wrote to memory of 4900	2392	RdrCEF.exe	91
PID 2392 wrote to memory of 4900	2392	RdrCEF.exe	91
PID 2392 wrote to memory of 4900	2392	RdrCEF.exe	91
PID 2392 wrote to memory of 4900	2392	RdrCEF.exe	91
PID 2392 wrote to memory of 4900	2392	RdrCEF.exe	91
PID 2392 wrote to memory of 4900	2392	RdrCEF.exe	91
PID 2392 wrote to memory of 4900	2392	RdrCEF.exe	91
PID 2392 wrote to memory of 4900	2392	RdrCEF.exe	91
PID 2392 wrote to memory of 4900	2392	RdrCEF.exe	91
PID 2392 wrote to memory of 4900	2392	RdrCEF.exe	91
PID 2392 wrote to memory of 4900	2392	RdrCEF.exe	91
PID 2392 wrote to memory of 4900	2392	RdrCEF.exe	91
PID 2392 wrote to memory of 4900	2392	RdrCEF.exe	91
PID 2392 wrote to memory of 4900	2392	RdrCEF.exe	91
PID 2392 wrote to memory of 4900	2392	RdrCEF.exe	91
PID 2392 wrote to memory of 4900	2392	RdrCEF.exe	91
PID 2392 wrote to memory of 4900	2392	RdrCEF.exe	91
PID 2392 wrote to memory of 4900	2392	RdrCEF.exe	91
PID 2392 wrote to memory of 856	2392	RdrCEF.exe	92
PID 2392 wrote to memory of 856	2392	RdrCEF.exe	92
PID 2392 wrote to memory of 856	2392	RdrCEF.exe	92
PID 2392 wrote to memory of 856	2392	RdrCEF.exe	92
PID 2392 wrote to memory of 856	2392	RdrCEF.exe	92
PID 2392 wrote to memory of 856	2392	RdrCEF.exe	92
PID 2392 wrote to memory of 856	2392	RdrCEF.exe	92
PID 2392 wrote to memory of 856	2392	RdrCEF.exe	92
PID 2392 wrote to memory of 856	2392	RdrCEF.exe	92
PID 2392 wrote to memory of 856	2392	RdrCEF.exe	92
PID 2392 wrote to memory of 856	2392	RdrCEF.exe	92
PID 2392 wrote to memory of 856	2392	RdrCEF.exe	92
PID 2392 wrote to memory of 856	2392	RdrCEF.exe	92
PID 2392 wrote to memory of 856	2392	RdrCEF.exe	92
PID 2392 wrote to memory of 856	2392	RdrCEF.exe	92
PID 2392 wrote to memory of 856	2392	RdrCEF.exe	92
PID 2392 wrote to memory of 856	2392	RdrCEF.exe	92
PID 2392 wrote to memory of 856	2392	RdrCEF.exe	92
PID 2392 wrote to memory of 856	2392	RdrCEF.exe	92
PID 2392 wrote to memory of 856	2392	RdrCEF.exe	92

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\a820719cff8e1557ac88c97ff2e4b42c.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:2368
- 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:2392
- - 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=98306BCC8A5B61BD95C87B00277FE1BD --mojo-platform-channel-handle=1748 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4900
- - 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=4A2474BA851786CD15C7F664CEB43361 --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=4A2474BA851786CD15C7F664CEB43361 --renderer-client-id=2 --mojo-platform-channel-handle=1752 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:856
- - 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=E52423A38A1676CBA07A99E52EAEF5DC --mojo-platform-channel-handle=2312 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2140
- - 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=0D303A47875CDF7583290E1EC6D54D18 --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=0D303A47875CDF7583290E1EC6D54D18 --renderer-client-id=5 --mojo-platform-channel-handle=1820 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:2064
- - 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=9F06C1E019D917F852BA79BEE5EE743B --mojo-platform-channel-handle=2656 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4648
- - 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=C5DE41B779AA5F3454B76BCB612239D9 --mojo-platform-channel-handle=1928 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3504

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:384

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
498c8e61f603742c2a3d6c6ae30e2ee7

SHA1
c48f087c6aeecd4ac1da7baeb4f77f0a57d55e05

SHA256
dfec7fe0e2b1f63d521a4c435a041072c9501e2dfb4cb7e612ebfd65321d30e5

SHA512
9ace99ca217ffe079215ddaa62650aa28cb07fb11965f4c896e6537488de3ef259095894ca2552026336fc7b88cc2caf5050a5c38f24be483a69497a5fa7fd74

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
memory/2368-97-0x000000000D530000-0x000000000D67D000-memory.dmp

Filesize
1.3MB

Download