8de90e44bd3d7c59816323977a29d19c0fffbf1b4237d239d638e1811bbaaeab

Analysis

max time kernel
142s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
24/01/2024, 23:05

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General

Target

731787f44965d178a33a48d2ba9951b4.pdf
Size

95KB
MD5

731787f44965d178a33a48d2ba9951b4
SHA1

218af313de05b1eac2b0d698838b6b42285977b5
SHA256

8de90e44bd3d7c59816323977a29d19c0fffbf1b4237d239d638e1811bbaaeab
SHA512

9ff7a6f5d33f8b6f91c1d3ac9d748cff7213475c46d10cc64f9ee7134bf81628ac6ea2e58520e9489d0dbf481912c98569c57132d9d623535d13b25b7a5827e2
SSDEEP

1536:X9TyYcqN6mGJjEdEbtp5ZS5AIt/FuEiQ7ovRAOO5z4yBRTWLnrtioMVWapOtQ1h0:NhcVmGBmgtp5gAKFuZ1OV7BpoMKtQPBK

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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	AcroRd32.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	AcroRd32.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-983843758-932321429-1636175382-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
2932	AcroRd32.exe
2932	AcroRd32.exe
2932	AcroRd32.exe
2932	AcroRd32.exe
2932	AcroRd32.exe
2932	AcroRd32.exe
2932	AcroRd32.exe
2932	AcroRd32.exe
2932	AcroRd32.exe
2932	AcroRd32.exe
2932	AcroRd32.exe
2932	AcroRd32.exe
2932	AcroRd32.exe
2932	AcroRd32.exe
2932	AcroRd32.exe
2932	AcroRd32.exe
2932	AcroRd32.exe
2932	AcroRd32.exe
2932	AcroRd32.exe
2932	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2932	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
2932	AcroRd32.exe
2932	AcroRd32.exe
2932	AcroRd32.exe
2932	AcroRd32.exe
2932	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2932 wrote to memory of 3640	2932	AcroRd32.exe	91
PID 2932 wrote to memory of 3640	2932	AcroRd32.exe	91
PID 2932 wrote to memory of 3640	2932	AcroRd32.exe	91
PID 3640 wrote to memory of 1172	3640	RdrCEF.exe	92
PID 3640 wrote to memory of 1172	3640	RdrCEF.exe	92
PID 3640 wrote to memory of 1172	3640	RdrCEF.exe	92
PID 3640 wrote to memory of 1172	3640	RdrCEF.exe	92
PID 3640 wrote to memory of 1172	3640	RdrCEF.exe	92
PID 3640 wrote to memory of 1172	3640	RdrCEF.exe	92
PID 3640 wrote to memory of 1172	3640	RdrCEF.exe	92
PID 3640 wrote to memory of 1172	3640	RdrCEF.exe	92
PID 3640 wrote to memory of 1172	3640	RdrCEF.exe	92
PID 3640 wrote to memory of 1172	3640	RdrCEF.exe	92
PID 3640 wrote to memory of 1172	3640	RdrCEF.exe	92
PID 3640 wrote to memory of 1172	3640	RdrCEF.exe	92
PID 3640 wrote to memory of 1172	3640	RdrCEF.exe	92
PID 3640 wrote to memory of 1172	3640	RdrCEF.exe	92
PID 3640 wrote to memory of 1172	3640	RdrCEF.exe	92
PID 3640 wrote to memory of 1172	3640	RdrCEF.exe	92
PID 3640 wrote to memory of 1172	3640	RdrCEF.exe	92
PID 3640 wrote to memory of 1172	3640	RdrCEF.exe	92
PID 3640 wrote to memory of 1172	3640	RdrCEF.exe	92
PID 3640 wrote to memory of 1172	3640	RdrCEF.exe	92
PID 3640 wrote to memory of 1172	3640	RdrCEF.exe	92
PID 3640 wrote to memory of 1172	3640	RdrCEF.exe	92
PID 3640 wrote to memory of 1172	3640	RdrCEF.exe	92
PID 3640 wrote to memory of 1172	3640	RdrCEF.exe	92
PID 3640 wrote to memory of 1172	3640	RdrCEF.exe	92
PID 3640 wrote to memory of 1172	3640	RdrCEF.exe	92
PID 3640 wrote to memory of 1172	3640	RdrCEF.exe	92
PID 3640 wrote to memory of 1172	3640	RdrCEF.exe	92
PID 3640 wrote to memory of 1172	3640	RdrCEF.exe	92
PID 3640 wrote to memory of 1172	3640	RdrCEF.exe	92
PID 3640 wrote to memory of 1172	3640	RdrCEF.exe	92
PID 3640 wrote to memory of 1172	3640	RdrCEF.exe	92
PID 3640 wrote to memory of 1172	3640	RdrCEF.exe	92
PID 3640 wrote to memory of 1172	3640	RdrCEF.exe	92
PID 3640 wrote to memory of 1172	3640	RdrCEF.exe	92
PID 3640 wrote to memory of 1172	3640	RdrCEF.exe	92
PID 3640 wrote to memory of 1172	3640	RdrCEF.exe	92
PID 3640 wrote to memory of 1172	3640	RdrCEF.exe	92
PID 3640 wrote to memory of 1172	3640	RdrCEF.exe	92
PID 3640 wrote to memory of 1172	3640	RdrCEF.exe	92
PID 3640 wrote to memory of 1172	3640	RdrCEF.exe	92
PID 3640 wrote to memory of 1316	3640	RdrCEF.exe	93
PID 3640 wrote to memory of 1316	3640	RdrCEF.exe	93
PID 3640 wrote to memory of 1316	3640	RdrCEF.exe	93
PID 3640 wrote to memory of 1316	3640	RdrCEF.exe	93
PID 3640 wrote to memory of 1316	3640	RdrCEF.exe	93
PID 3640 wrote to memory of 1316	3640	RdrCEF.exe	93
PID 3640 wrote to memory of 1316	3640	RdrCEF.exe	93
PID 3640 wrote to memory of 1316	3640	RdrCEF.exe	93
PID 3640 wrote to memory of 1316	3640	RdrCEF.exe	93
PID 3640 wrote to memory of 1316	3640	RdrCEF.exe	93
PID 3640 wrote to memory of 1316	3640	RdrCEF.exe	93
PID 3640 wrote to memory of 1316	3640	RdrCEF.exe	93
PID 3640 wrote to memory of 1316	3640	RdrCEF.exe	93
PID 3640 wrote to memory of 1316	3640	RdrCEF.exe	93
PID 3640 wrote to memory of 1316	3640	RdrCEF.exe	93
PID 3640 wrote to memory of 1316	3640	RdrCEF.exe	93
PID 3640 wrote to memory of 1316	3640	RdrCEF.exe	93
PID 3640 wrote to memory of 1316	3640	RdrCEF.exe	93
PID 3640 wrote to memory of 1316	3640	RdrCEF.exe	93
PID 3640 wrote to memory of 1316	3640	RdrCEF.exe	93

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\731787f44965d178a33a48d2ba9951b4.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:2932
- 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:3640
- - 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=EE0506808C63B7D47B4D0F645D62A5BD --mojo-platform-channel-handle=1728 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1172
- - 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=C348AB01E53E8CA7A70B8117A695A292 --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=C348AB01E53E8CA7A70B8117A695A292 --renderer-client-id=2 --mojo-platform-channel-handle=1756 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:1316
- - 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=8EFAD1CF0A076F9F9BC6559019452410 --mojo-platform-channel-handle=2296 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:432
- - 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=48FFCBFEEFD617234687186A8B52EBCD --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=48FFCBFEEFD617234687186A8B52EBCD --renderer-client-id=5 --mojo-platform-channel-handle=1864 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4652
- - 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=9D1B5DA2A7332611B0C4F1FB0C8C7339 --mojo-platform-channel-handle=2568 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2552
- - 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=2E50E179ED444A50AFFD1DC0D5D3DB85 --mojo-platform-channel-handle=2376 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1848

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:4984

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
7c9a84351229979a4cadd8e55c3c817d

SHA1
d66e1fccf7a03c3c841059ac7d895f10fc2ac57a

SHA256
1d4df2ec9c67515de7f4740920ede5ba2a9e1276ea76be07fc396a9d6a52d547

SHA512
69292a01cfdd5daa3e6331eb2a7f6bd6d362f89960800de237276b7e7b9e319752d0e9dd3ba22d128b764c3788850434abab05b0b22d73622ab7fa1fb9a7a66b

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