8c71f899bd1a337e31b75ec3af653602bc89aec18eb56246b366f81989f48034

Analysis

max time kernel
109s
max time network
136s
platform
windows11-21h2_x64
resource
win11-20231222-en
resource tags

arch:x64arch:x86image:win11-20231222-enlocale:en-usos:windows11-21h2-x64system
submitted
26-01-2024 06:39

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General

Target

PG1Z2AUCENE45.pdf
Size

63KB
MD5

f65c1c35c894f7cdbe819c3e96402f95
SHA1

452403ddb2dfce0d2fda8a9f4b94f82eec5960b1
SHA256

8c71f899bd1a337e31b75ec3af653602bc89aec18eb56246b366f81989f48034
SHA512

1578a1825ed90eba49368c2f127b52e3b55be5083a86f6c15461bc2f9747eb8192682588e248091f6b6ef1635c5e704cbbd17d13254cc2c713f2b2271f0fea7f
SSDEEP

1536:JWoPuc4mNKMAe2OTTTTTTTTTTTTTTTTflQTTTTTTTTTTTTTTTTTTTtMSbZQe5dTY:JWoR4mNzAZ+lStz59xVbfer

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-1-5-21-1184116928-951304463-2249875399-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
4860	AcroRd32.exe
4860	AcroRd32.exe
4860	AcroRd32.exe
4860	AcroRd32.exe
4860	AcroRd32.exe
4860	AcroRd32.exe
4860	AcroRd32.exe
4860	AcroRd32.exe
4860	AcroRd32.exe
4860	AcroRd32.exe
4860	AcroRd32.exe
4860	AcroRd32.exe
4860	AcroRd32.exe
4860	AcroRd32.exe
4860	AcroRd32.exe
4860	AcroRd32.exe
4860	AcroRd32.exe
4860	AcroRd32.exe
4860	AcroRd32.exe
4860	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4860	AcroRd32.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
4860	AcroRd32.exe
4860	AcroRd32.exe
4860	AcroRd32.exe
4860	AcroRd32.exe
4860	AcroRd32.exe
4860	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4860 wrote to memory of 4892	4860	AcroRd32.exe	81
PID 4860 wrote to memory of 4892	4860	AcroRd32.exe	81
PID 4860 wrote to memory of 4892	4860	AcroRd32.exe	81
PID 4892 wrote to memory of 1608	4892	RdrCEF.exe	82
PID 4892 wrote to memory of 1608	4892	RdrCEF.exe	82
PID 4892 wrote to memory of 1608	4892	RdrCEF.exe	82
PID 4892 wrote to memory of 1608	4892	RdrCEF.exe	82
PID 4892 wrote to memory of 1608	4892	RdrCEF.exe	82
PID 4892 wrote to memory of 1608	4892	RdrCEF.exe	82
PID 4892 wrote to memory of 1608	4892	RdrCEF.exe	82
PID 4892 wrote to memory of 1608	4892	RdrCEF.exe	82
PID 4892 wrote to memory of 1608	4892	RdrCEF.exe	82
PID 4892 wrote to memory of 1608	4892	RdrCEF.exe	82
PID 4892 wrote to memory of 1608	4892	RdrCEF.exe	82
PID 4892 wrote to memory of 1608	4892	RdrCEF.exe	82
PID 4892 wrote to memory of 1608	4892	RdrCEF.exe	82
PID 4892 wrote to memory of 1608	4892	RdrCEF.exe	82
PID 4892 wrote to memory of 1608	4892	RdrCEF.exe	82
PID 4892 wrote to memory of 1608	4892	RdrCEF.exe	82
PID 4892 wrote to memory of 1608	4892	RdrCEF.exe	82
PID 4892 wrote to memory of 1608	4892	RdrCEF.exe	82
PID 4892 wrote to memory of 1608	4892	RdrCEF.exe	82
PID 4892 wrote to memory of 1608	4892	RdrCEF.exe	82
PID 4892 wrote to memory of 1608	4892	RdrCEF.exe	82
PID 4892 wrote to memory of 1608	4892	RdrCEF.exe	82
PID 4892 wrote to memory of 1608	4892	RdrCEF.exe	82
PID 4892 wrote to memory of 1608	4892	RdrCEF.exe	82
PID 4892 wrote to memory of 1608	4892	RdrCEF.exe	82
PID 4892 wrote to memory of 1608	4892	RdrCEF.exe	82
PID 4892 wrote to memory of 1608	4892	RdrCEF.exe	82
PID 4892 wrote to memory of 1608	4892	RdrCEF.exe	82
PID 4892 wrote to memory of 1608	4892	RdrCEF.exe	82
PID 4892 wrote to memory of 1608	4892	RdrCEF.exe	82
PID 4892 wrote to memory of 1608	4892	RdrCEF.exe	82
PID 4892 wrote to memory of 1608	4892	RdrCEF.exe	82
PID 4892 wrote to memory of 1608	4892	RdrCEF.exe	82
PID 4892 wrote to memory of 1608	4892	RdrCEF.exe	82
PID 4892 wrote to memory of 1608	4892	RdrCEF.exe	82
PID 4892 wrote to memory of 1608	4892	RdrCEF.exe	82
PID 4892 wrote to memory of 1608	4892	RdrCEF.exe	82
PID 4892 wrote to memory of 1608	4892	RdrCEF.exe	82
PID 4892 wrote to memory of 1608	4892	RdrCEF.exe	82
PID 4892 wrote to memory of 1608	4892	RdrCEF.exe	82
PID 4892 wrote to memory of 1608	4892	RdrCEF.exe	82
PID 4892 wrote to memory of 2684	4892	RdrCEF.exe	83
PID 4892 wrote to memory of 2684	4892	RdrCEF.exe	83
PID 4892 wrote to memory of 2684	4892	RdrCEF.exe	83
PID 4892 wrote to memory of 2684	4892	RdrCEF.exe	83
PID 4892 wrote to memory of 2684	4892	RdrCEF.exe	83
PID 4892 wrote to memory of 2684	4892	RdrCEF.exe	83
PID 4892 wrote to memory of 2684	4892	RdrCEF.exe	83
PID 4892 wrote to memory of 2684	4892	RdrCEF.exe	83
PID 4892 wrote to memory of 2684	4892	RdrCEF.exe	83
PID 4892 wrote to memory of 2684	4892	RdrCEF.exe	83
PID 4892 wrote to memory of 2684	4892	RdrCEF.exe	83
PID 4892 wrote to memory of 2684	4892	RdrCEF.exe	83
PID 4892 wrote to memory of 2684	4892	RdrCEF.exe	83
PID 4892 wrote to memory of 2684	4892	RdrCEF.exe	83
PID 4892 wrote to memory of 2684	4892	RdrCEF.exe	83
PID 4892 wrote to memory of 2684	4892	RdrCEF.exe	83
PID 4892 wrote to memory of 2684	4892	RdrCEF.exe	83
PID 4892 wrote to memory of 2684	4892	RdrCEF.exe	83
PID 4892 wrote to memory of 2684	4892	RdrCEF.exe	83
PID 4892 wrote to memory of 2684	4892	RdrCEF.exe	83

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\PG1Z2AUCENE45.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:4860
- 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:4892
- - 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=4C0288EAA774E0054601316BAF83379A --mojo-platform-channel-handle=1764 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1608
- - 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=EB941D3C38DB8DA299220E92EC026DB5 --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=EB941D3C38DB8DA299220E92EC026DB5 --renderer-client-id=2 --mojo-platform-channel-handle=1772 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:2684
- - 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=9393673D262D7FAC312DE41DB8586330 --mojo-platform-channel-handle=2304 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:412
- - 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=62A7F0B2AF5036A9CDD8C0BFE666458C --mojo-platform-channel-handle=1956 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1352
- - 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=35D21BDC2167A6A6A8926776ABFF874C --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=35D21BDC2167A6A6A8926776ABFF874C --renderer-client-id=6 --mojo-platform-channel-handle=1748 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4984
- - 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=82F5FA28802F844D6A34E2CFE07AE61B --mojo-platform-channel-handle=2700 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3016

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:2268

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
f4ce223e311d8e4cbe6096e57356fb43

SHA1
336f8ac96b718ce8d11036ca02bb8a6eeec3b3b7

SHA256
c25614a81b656b8c61a69aac7ed1b7bba854518a2fe9dcd8b5a32f2a5e2e5dde

SHA512
5ac1def0ff3d231d6ec0d6ea5dd652321d6ce926a4f061fd83121d332269e5411dafc1ea3630b98836758d61a878bebbe2b84f493393a42e93dc72d0ea1bafbb

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/4860-138-0x000000000B1D0000-0x000000000B47B000-memory.dmp

Filesize
2.7MB

Download