cb20b17f02ec552a33467d4ded6510fdb005699702888572bd50078d3d4e693c

Analysis

max time kernel
142s
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
26/01/2024, 12:34

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General

Target

775f66aca43d94da870a69ce8b60051d.pdf
Size

84KB
MD5

775f66aca43d94da870a69ce8b60051d
SHA1

28fdb25e9908daf2738236c6b3171e7bd9dfbb94
SHA256

cb20b17f02ec552a33467d4ded6510fdb005699702888572bd50078d3d4e693c
SHA512

739af7da0c8ae513850a9c4b64ed0b6322dbaae5160b48e221241cae0bde812352fd0253a9006f997e340184101e64fa54a55b18d37a217862eec09ea9f3a19c
SSDEEP

1536:BtTGgSo7eADvxVk1CsQdDacS6fGI7DRovS+TeD2WCpOViIWq+4Fa4MpOleY4yoHm:PGbkZVkgycS6fGI79ovXCDrVi6jFKpOP

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
3452	AcroRd32.exe
3452	AcroRd32.exe
3452	AcroRd32.exe
3452	AcroRd32.exe
3452	AcroRd32.exe
3452	AcroRd32.exe
3452	AcroRd32.exe
3452	AcroRd32.exe
3452	AcroRd32.exe
3452	AcroRd32.exe
3452	AcroRd32.exe
3452	AcroRd32.exe
3452	AcroRd32.exe
3452	AcroRd32.exe
3452	AcroRd32.exe
3452	AcroRd32.exe
3452	AcroRd32.exe
3452	AcroRd32.exe
3452	AcroRd32.exe
3452	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3452	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
3452	AcroRd32.exe
3452	AcroRd32.exe
3452	AcroRd32.exe
3452	AcroRd32.exe
3452	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 3452 wrote to memory of 4588	3452	AcroRd32.exe	90
PID 3452 wrote to memory of 4588	3452	AcroRd32.exe	90
PID 3452 wrote to memory of 4588	3452	AcroRd32.exe	90
PID 4588 wrote to memory of 3896	4588	RdrCEF.exe	93
PID 4588 wrote to memory of 3896	4588	RdrCEF.exe	93
PID 4588 wrote to memory of 3896	4588	RdrCEF.exe	93
PID 4588 wrote to memory of 3896	4588	RdrCEF.exe	93
PID 4588 wrote to memory of 3896	4588	RdrCEF.exe	93
PID 4588 wrote to memory of 3896	4588	RdrCEF.exe	93
PID 4588 wrote to memory of 3896	4588	RdrCEF.exe	93
PID 4588 wrote to memory of 3896	4588	RdrCEF.exe	93
PID 4588 wrote to memory of 3896	4588	RdrCEF.exe	93
PID 4588 wrote to memory of 3896	4588	RdrCEF.exe	93
PID 4588 wrote to memory of 3896	4588	RdrCEF.exe	93
PID 4588 wrote to memory of 3896	4588	RdrCEF.exe	93
PID 4588 wrote to memory of 3896	4588	RdrCEF.exe	93
PID 4588 wrote to memory of 3896	4588	RdrCEF.exe	93
PID 4588 wrote to memory of 3896	4588	RdrCEF.exe	93
PID 4588 wrote to memory of 3896	4588	RdrCEF.exe	93
PID 4588 wrote to memory of 3896	4588	RdrCEF.exe	93
PID 4588 wrote to memory of 3896	4588	RdrCEF.exe	93
PID 4588 wrote to memory of 3896	4588	RdrCEF.exe	93
PID 4588 wrote to memory of 3896	4588	RdrCEF.exe	93
PID 4588 wrote to memory of 3896	4588	RdrCEF.exe	93
PID 4588 wrote to memory of 3896	4588	RdrCEF.exe	93
PID 4588 wrote to memory of 3896	4588	RdrCEF.exe	93
PID 4588 wrote to memory of 3896	4588	RdrCEF.exe	93
PID 4588 wrote to memory of 3896	4588	RdrCEF.exe	93
PID 4588 wrote to memory of 3896	4588	RdrCEF.exe	93
PID 4588 wrote to memory of 3896	4588	RdrCEF.exe	93
PID 4588 wrote to memory of 3896	4588	RdrCEF.exe	93
PID 4588 wrote to memory of 3896	4588	RdrCEF.exe	93
PID 4588 wrote to memory of 3896	4588	RdrCEF.exe	93
PID 4588 wrote to memory of 3896	4588	RdrCEF.exe	93
PID 4588 wrote to memory of 3896	4588	RdrCEF.exe	93
PID 4588 wrote to memory of 3896	4588	RdrCEF.exe	93
PID 4588 wrote to memory of 3896	4588	RdrCEF.exe	93
PID 4588 wrote to memory of 3896	4588	RdrCEF.exe	93
PID 4588 wrote to memory of 3896	4588	RdrCEF.exe	93
PID 4588 wrote to memory of 3896	4588	RdrCEF.exe	93
PID 4588 wrote to memory of 3896	4588	RdrCEF.exe	93
PID 4588 wrote to memory of 3896	4588	RdrCEF.exe	93
PID 4588 wrote to memory of 3896	4588	RdrCEF.exe	93
PID 4588 wrote to memory of 3896	4588	RdrCEF.exe	93
PID 4588 wrote to memory of 3352	4588	RdrCEF.exe	94
PID 4588 wrote to memory of 3352	4588	RdrCEF.exe	94
PID 4588 wrote to memory of 3352	4588	RdrCEF.exe	94
PID 4588 wrote to memory of 3352	4588	RdrCEF.exe	94
PID 4588 wrote to memory of 3352	4588	RdrCEF.exe	94
PID 4588 wrote to memory of 3352	4588	RdrCEF.exe	94
PID 4588 wrote to memory of 3352	4588	RdrCEF.exe	94
PID 4588 wrote to memory of 3352	4588	RdrCEF.exe	94
PID 4588 wrote to memory of 3352	4588	RdrCEF.exe	94
PID 4588 wrote to memory of 3352	4588	RdrCEF.exe	94
PID 4588 wrote to memory of 3352	4588	RdrCEF.exe	94
PID 4588 wrote to memory of 3352	4588	RdrCEF.exe	94
PID 4588 wrote to memory of 3352	4588	RdrCEF.exe	94
PID 4588 wrote to memory of 3352	4588	RdrCEF.exe	94
PID 4588 wrote to memory of 3352	4588	RdrCEF.exe	94
PID 4588 wrote to memory of 3352	4588	RdrCEF.exe	94
PID 4588 wrote to memory of 3352	4588	RdrCEF.exe	94
PID 4588 wrote to memory of 3352	4588	RdrCEF.exe	94
PID 4588 wrote to memory of 3352	4588	RdrCEF.exe	94
PID 4588 wrote to memory of 3352	4588	RdrCEF.exe	94

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\775f66aca43d94da870a69ce8b60051d.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:3452
- 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:4588
- - 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=43400D819F0078EA9D2B7FA924EA3DBA --mojo-platform-channel-handle=1748 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3896
- - 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=046F95FDB1AD039CF48A9C34B436B797 --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=046F95FDB1AD039CF48A9C34B436B797 --renderer-client-id=2 --mojo-platform-channel-handle=1756 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:3352
- - 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=AC5B5A18B107796BF8C4796E0F16505D --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=AC5B5A18B107796BF8C4796E0F16505D --renderer-client-id=4 --mojo-platform-channel-handle=2316 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4540
- - 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=237BE0CB9483D7289A453DB90A6B3CA4 --mojo-platform-channel-handle=2328 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3680
- - 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=4DF9BDC9927C03930EE1D9A5F2E7CBA4 --mojo-platform-channel-handle=2440 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1168
- - 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=66757D543099770322EBF677C02923CA --mojo-platform-channel-handle=2764 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4500

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:3836

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
6b486e0a43544b1b6d237fa5f06edc04

SHA1
4f7af8dd4ebadd325ce27617d0a318dd0d957452

SHA256
8cfacd0f8fdd73a49bef2f32cb6cfaf8bfda2161a4f2d931b4298a196da5de06

SHA512
5fc2af3aabfd33c157b9a499c871c8c11ed330d5e3d11f96869588f10f55e15ad4891f9e46a40a66090b6e8723695a69596c778552edab613f0e3ac4637772af

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/3452-28-0x000000000AC30000-0x000000000AC51000-memory.dmp

Filesize
132KB

Download