a93982a6c493e75498f2ef70e67a15c314181528b430e9b83fd3eb069a46de69

Analysis

max time kernel
146s
max time network
150s
platform
windows11-21h2_x64
resource
win11-20240508-en
resource tags

arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system
submitted
29/05/2024, 12:57

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General

Target

25433_STY_25433.pdf
Size

21KB
MD5

102a3466ce90694c8cee3a246ff47ac7
SHA1

f9e737ebe273f1acd62d61e2ca2e75871cf5799d
SHA256

a173782b4854f4d2e740f0048e5f53adc484ad196e8d00e195c621b801cb5812
SHA512

59a0c8be66c628bec010266a721fe82bf7b498a215018dd5496b1d24aafa135e575eecb947332ce732542a8fd8c29e50efd684bc6f4b7bae7adf2d1ce97df8b6
SSDEEP

384:G+E3MF6FhAfF1RVxSCUSPQksrizowuO1o80/2uwrwaMCUSHXzAy3DTaue4QIOqos:bE8ihAf1egssowJ1p0/zwMJDiOeZ

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-1-5-21-2457560273-69882387-977367775-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
3692	AcroRd32.exe
3692	AcroRd32.exe
3692	AcroRd32.exe
3692	AcroRd32.exe
3692	AcroRd32.exe
3692	AcroRd32.exe
3692	AcroRd32.exe
3692	AcroRd32.exe
3692	AcroRd32.exe
3692	AcroRd32.exe
3692	AcroRd32.exe
3692	AcroRd32.exe
3692	AcroRd32.exe
3692	AcroRd32.exe
3692	AcroRd32.exe
3692	AcroRd32.exe
3692	AcroRd32.exe
3692	AcroRd32.exe
3692	AcroRd32.exe
3692	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3692	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
3692	AcroRd32.exe
3692	AcroRd32.exe
3692	AcroRd32.exe
3692	AcroRd32.exe
3692	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 3692 wrote to memory of 4720	3692	AcroRd32.exe	77
PID 3692 wrote to memory of 4720	3692	AcroRd32.exe	77
PID 3692 wrote to memory of 4720	3692	AcroRd32.exe	77
PID 4720 wrote to memory of 4032	4720	RdrCEF.exe	78
PID 4720 wrote to memory of 4032	4720	RdrCEF.exe	78
PID 4720 wrote to memory of 4032	4720	RdrCEF.exe	78
PID 4720 wrote to memory of 4032	4720	RdrCEF.exe	78
PID 4720 wrote to memory of 4032	4720	RdrCEF.exe	78
PID 4720 wrote to memory of 4032	4720	RdrCEF.exe	78
PID 4720 wrote to memory of 4032	4720	RdrCEF.exe	78
PID 4720 wrote to memory of 4032	4720	RdrCEF.exe	78
PID 4720 wrote to memory of 4032	4720	RdrCEF.exe	78
PID 4720 wrote to memory of 4032	4720	RdrCEF.exe	78
PID 4720 wrote to memory of 4032	4720	RdrCEF.exe	78
PID 4720 wrote to memory of 4032	4720	RdrCEF.exe	78
PID 4720 wrote to memory of 4032	4720	RdrCEF.exe	78
PID 4720 wrote to memory of 4032	4720	RdrCEF.exe	78
PID 4720 wrote to memory of 4032	4720	RdrCEF.exe	78
PID 4720 wrote to memory of 4032	4720	RdrCEF.exe	78
PID 4720 wrote to memory of 4032	4720	RdrCEF.exe	78
PID 4720 wrote to memory of 4032	4720	RdrCEF.exe	78
PID 4720 wrote to memory of 4032	4720	RdrCEF.exe	78
PID 4720 wrote to memory of 4032	4720	RdrCEF.exe	78
PID 4720 wrote to memory of 4032	4720	RdrCEF.exe	78
PID 4720 wrote to memory of 4032	4720	RdrCEF.exe	78
PID 4720 wrote to memory of 4032	4720	RdrCEF.exe	78
PID 4720 wrote to memory of 4032	4720	RdrCEF.exe	78
PID 4720 wrote to memory of 4032	4720	RdrCEF.exe	78
PID 4720 wrote to memory of 4032	4720	RdrCEF.exe	78
PID 4720 wrote to memory of 4032	4720	RdrCEF.exe	78
PID 4720 wrote to memory of 4032	4720	RdrCEF.exe	78
PID 4720 wrote to memory of 4032	4720	RdrCEF.exe	78
PID 4720 wrote to memory of 4032	4720	RdrCEF.exe	78
PID 4720 wrote to memory of 4032	4720	RdrCEF.exe	78
PID 4720 wrote to memory of 4032	4720	RdrCEF.exe	78
PID 4720 wrote to memory of 4032	4720	RdrCEF.exe	78
PID 4720 wrote to memory of 4032	4720	RdrCEF.exe	78
PID 4720 wrote to memory of 4032	4720	RdrCEF.exe	78
PID 4720 wrote to memory of 4032	4720	RdrCEF.exe	78
PID 4720 wrote to memory of 4032	4720	RdrCEF.exe	78
PID 4720 wrote to memory of 4032	4720	RdrCEF.exe	78
PID 4720 wrote to memory of 4032	4720	RdrCEF.exe	78
PID 4720 wrote to memory of 4032	4720	RdrCEF.exe	78
PID 4720 wrote to memory of 4032	4720	RdrCEF.exe	78
PID 4720 wrote to memory of 1684	4720	RdrCEF.exe	79
PID 4720 wrote to memory of 1684	4720	RdrCEF.exe	79
PID 4720 wrote to memory of 1684	4720	RdrCEF.exe	79
PID 4720 wrote to memory of 1684	4720	RdrCEF.exe	79
PID 4720 wrote to memory of 1684	4720	RdrCEF.exe	79
PID 4720 wrote to memory of 1684	4720	RdrCEF.exe	79
PID 4720 wrote to memory of 1684	4720	RdrCEF.exe	79
PID 4720 wrote to memory of 1684	4720	RdrCEF.exe	79
PID 4720 wrote to memory of 1684	4720	RdrCEF.exe	79
PID 4720 wrote to memory of 1684	4720	RdrCEF.exe	79
PID 4720 wrote to memory of 1684	4720	RdrCEF.exe	79
PID 4720 wrote to memory of 1684	4720	RdrCEF.exe	79
PID 4720 wrote to memory of 1684	4720	RdrCEF.exe	79
PID 4720 wrote to memory of 1684	4720	RdrCEF.exe	79
PID 4720 wrote to memory of 1684	4720	RdrCEF.exe	79
PID 4720 wrote to memory of 1684	4720	RdrCEF.exe	79
PID 4720 wrote to memory of 1684	4720	RdrCEF.exe	79
PID 4720 wrote to memory of 1684	4720	RdrCEF.exe	79
PID 4720 wrote to memory of 1684	4720	RdrCEF.exe	79
PID 4720 wrote to memory of 1684	4720	RdrCEF.exe	79

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\25433_STY_25433.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:3692
- 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:4720
- - 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=406DA96D09709C2DE83663BB76D4EF88 --mojo-platform-channel-handle=1764 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4032
- - 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=9D7CE59E3620FC123CFC93DC67F6DD26 --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=9D7CE59E3620FC123CFC93DC67F6DD26 --renderer-client-id=2 --mojo-platform-channel-handle=1756 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:1684
- - 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=24187F7F55375FC69DA1FF3DD96D45F8 --mojo-platform-channel-handle=2304 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3300
- - 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=502885013DB273C1B26915D1181C6690 --mojo-platform-channel-handle=1948 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4708
- - 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=96FDACB03BBE2FBDF92C7D9F52B6F689 --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=96FDACB03BBE2FBDF92C7D9F52B6F689 --renderer-client-id=6 --mojo-platform-channel-handle=2308 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:2056
- - 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=FEE13BBED1C3B38EE4F776187A0303B3 --mojo-platform-channel-handle=2548 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3088

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
d537d54638d407a2d89fcff90ac2cdce

SHA1
3f1c9b5151a99aee83ce5177784337c8c6e27d3a

SHA256
956d9a9282e5a6b95c99087a0f958e7f9e48c641be2d20c07f42a4e5ee28cc7b

SHA512
5a75493fb1b0072c97acf0c889041e92d41f73532e11542ed31dca36bbac94ff296938ee3681fbe8d97f6119684e446d65f07f0295bf934f72b8b926c21a817c

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