f73b5ddee602453364fa40dabfab33a8b192d59211ef7056f0196da4ff4a54c0

Resubmissions

24/02/2024, 16:45

240224-t9jsjsgg37 5

Analysis

max time kernel
142s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20240221-en
resource tags

arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
submitted
24/02/2024, 16:45

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General

Target

$TEMP/Installation-Instructions.pdf
Size

844KB
MD5

9f57d5c8bea7bb0c56f6feab5ec57d49
SHA1

fb5509772439aa89fad1194a7657ac9f8dadd9a0
SHA256

32f20c4168639d3544920705b1b563dced626bf506ed111729bf0fca7be20ef6
SHA512

aa33496b4def53a7a2e51102de2ddbdca237dba76b43ae6bc6cb70c76953ac1685592e997c9f5787195e67b8419ef06ce239f84b45ba4b07d93574550946994c
SSDEEP

24576:T1fvyZdlOBoHQ+PmIC+zyRqO/KtC9AFpLfBEjMs:ydIIxuXKY9q7fs

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-1-5-21-2132103209-3755304320-2959162027-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
4608	AcroRd32.exe
4608	AcroRd32.exe
4608	AcroRd32.exe
4608	AcroRd32.exe
4608	AcroRd32.exe
4608	AcroRd32.exe
4608	AcroRd32.exe
4608	AcroRd32.exe
4608	AcroRd32.exe
4608	AcroRd32.exe
4608	AcroRd32.exe
4608	AcroRd32.exe
4608	AcroRd32.exe
4608	AcroRd32.exe
4608	AcroRd32.exe
4608	AcroRd32.exe
4608	AcroRd32.exe
4608	AcroRd32.exe
4608	AcroRd32.exe
4608	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4608	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
4608	AcroRd32.exe
4608	AcroRd32.exe
4608	AcroRd32.exe
4608	AcroRd32.exe
4608	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4608 wrote to memory of 4624	4608	AcroRd32.exe	88
PID 4608 wrote to memory of 4624	4608	AcroRd32.exe	88
PID 4608 wrote to memory of 4624	4608	AcroRd32.exe	88
PID 4624 wrote to memory of 3016	4624	RdrCEF.exe	89
PID 4624 wrote to memory of 3016	4624	RdrCEF.exe	89
PID 4624 wrote to memory of 3016	4624	RdrCEF.exe	89
PID 4624 wrote to memory of 3016	4624	RdrCEF.exe	89
PID 4624 wrote to memory of 3016	4624	RdrCEF.exe	89
PID 4624 wrote to memory of 3016	4624	RdrCEF.exe	89
PID 4624 wrote to memory of 3016	4624	RdrCEF.exe	89
PID 4624 wrote to memory of 3016	4624	RdrCEF.exe	89
PID 4624 wrote to memory of 3016	4624	RdrCEF.exe	89
PID 4624 wrote to memory of 3016	4624	RdrCEF.exe	89
PID 4624 wrote to memory of 3016	4624	RdrCEF.exe	89
PID 4624 wrote to memory of 3016	4624	RdrCEF.exe	89
PID 4624 wrote to memory of 3016	4624	RdrCEF.exe	89
PID 4624 wrote to memory of 3016	4624	RdrCEF.exe	89
PID 4624 wrote to memory of 3016	4624	RdrCEF.exe	89
PID 4624 wrote to memory of 3016	4624	RdrCEF.exe	89
PID 4624 wrote to memory of 3016	4624	RdrCEF.exe	89
PID 4624 wrote to memory of 3016	4624	RdrCEF.exe	89
PID 4624 wrote to memory of 3016	4624	RdrCEF.exe	89
PID 4624 wrote to memory of 3016	4624	RdrCEF.exe	89
PID 4624 wrote to memory of 3016	4624	RdrCEF.exe	89
PID 4624 wrote to memory of 3016	4624	RdrCEF.exe	89
PID 4624 wrote to memory of 3016	4624	RdrCEF.exe	89
PID 4624 wrote to memory of 3016	4624	RdrCEF.exe	89
PID 4624 wrote to memory of 3016	4624	RdrCEF.exe	89
PID 4624 wrote to memory of 3016	4624	RdrCEF.exe	89
PID 4624 wrote to memory of 3016	4624	RdrCEF.exe	89
PID 4624 wrote to memory of 3016	4624	RdrCEF.exe	89
PID 4624 wrote to memory of 3016	4624	RdrCEF.exe	89
PID 4624 wrote to memory of 3016	4624	RdrCEF.exe	89
PID 4624 wrote to memory of 3016	4624	RdrCEF.exe	89
PID 4624 wrote to memory of 3016	4624	RdrCEF.exe	89
PID 4624 wrote to memory of 3016	4624	RdrCEF.exe	89
PID 4624 wrote to memory of 3016	4624	RdrCEF.exe	89
PID 4624 wrote to memory of 3016	4624	RdrCEF.exe	89
PID 4624 wrote to memory of 3016	4624	RdrCEF.exe	89
PID 4624 wrote to memory of 3016	4624	RdrCEF.exe	89
PID 4624 wrote to memory of 3016	4624	RdrCEF.exe	89
PID 4624 wrote to memory of 3016	4624	RdrCEF.exe	89
PID 4624 wrote to memory of 3016	4624	RdrCEF.exe	89
PID 4624 wrote to memory of 3016	4624	RdrCEF.exe	89
PID 4624 wrote to memory of 4740	4624	RdrCEF.exe	90
PID 4624 wrote to memory of 4740	4624	RdrCEF.exe	90
PID 4624 wrote to memory of 4740	4624	RdrCEF.exe	90
PID 4624 wrote to memory of 4740	4624	RdrCEF.exe	90
PID 4624 wrote to memory of 4740	4624	RdrCEF.exe	90
PID 4624 wrote to memory of 4740	4624	RdrCEF.exe	90
PID 4624 wrote to memory of 4740	4624	RdrCEF.exe	90
PID 4624 wrote to memory of 4740	4624	RdrCEF.exe	90
PID 4624 wrote to memory of 4740	4624	RdrCEF.exe	90
PID 4624 wrote to memory of 4740	4624	RdrCEF.exe	90
PID 4624 wrote to memory of 4740	4624	RdrCEF.exe	90
PID 4624 wrote to memory of 4740	4624	RdrCEF.exe	90
PID 4624 wrote to memory of 4740	4624	RdrCEF.exe	90
PID 4624 wrote to memory of 4740	4624	RdrCEF.exe	90
PID 4624 wrote to memory of 4740	4624	RdrCEF.exe	90
PID 4624 wrote to memory of 4740	4624	RdrCEF.exe	90
PID 4624 wrote to memory of 4740	4624	RdrCEF.exe	90
PID 4624 wrote to memory of 4740	4624	RdrCEF.exe	90
PID 4624 wrote to memory of 4740	4624	RdrCEF.exe	90
PID 4624 wrote to memory of 4740	4624	RdrCEF.exe	90

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\$TEMP\Installation-Instructions.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:4608
- 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:4624
- - 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=3E65E8B9EAA34AFC4AE30272F7622C83 --mojo-platform-channel-handle=1740 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3016
- - 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=7322A7EF175CC96D8D7E38068C035710 --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=7322A7EF175CC96D8D7E38068C035710 --renderer-client-id=2 --mojo-platform-channel-handle=1752 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4740
- - 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=3BF31FB2644BC2DFB558F234C9768EEF --mojo-platform-channel-handle=2032 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4600
- - 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=2190C04EA64CEA99A7DBC5A41871063D --mojo-platform-channel-handle=2328 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2132
- - 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=1728457AF1BE197319E55A3017DB19D0 --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=1728457AF1BE197319E55A3017DB19D0 --renderer-client-id=6 --mojo-platform-channel-handle=2160 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:3252
- - 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=A551D54C9A1D2ADB0F51C7B9CF33B62B --mojo-platform-channel-handle=2668 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1224

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:3284

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

Loading Replay Monitor...

Downloads

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

Filesize
64KB

MD5
fd4853d1d8265496dfd0084bb41fa60f

SHA1
dbcf95f8391adc1b6c00f3508064384040e1aab3

SHA256
1f0f45f556067f1145def3a451fc0a8af2f0df4c1e49ed3670905a448be86349

SHA512
cb24310090c976d60a85f8720fd61001d98191664425806b1dcce5578ed3e3dfc258f2ea96f1ad06722082bbcfd794dfb1a85564d2b0381c00ec7bf575a294d4

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/4608-28-0x000000000B100000-0x000000000B121000-memory.dmp

Filesize
132KB

Download