521ad214e5cc9ef48fc123eace102a61fa5315814448491b0662d42480f832dd

Analysis

max time kernel
187s
max time network
193s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
31/12/2023, 03:43

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General

Target

26c6b05dc56043a39d93f05194431420.pdf
Size

53KB
MD5

26c6b05dc56043a39d93f05194431420
SHA1

ae8aff66e57dccaafc6a0d1dd75338d7a538389a
SHA256

521ad214e5cc9ef48fc123eace102a61fa5315814448491b0662d42480f832dd
SHA512

35b9de573e73ddf187fae1518d232cf99b716d582d99dfd2d04735691af69a605f206f6e6b78ac76d3e3126b157ea3a6c66f153a1516b9dba6e95122b99e8be4
SSDEEP

768:UqhYg/NHSeKzqKe2t2dPxuqSFp0WtvG7SSx0KatQEJJ5i:UqPVKeeOYqWpGZx0Kabb5i

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-1-5-21-983843758-932321429-1636175382-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
2268	AcroRd32.exe
2268	AcroRd32.exe
2268	AcroRd32.exe
2268	AcroRd32.exe
2268	AcroRd32.exe
2268	AcroRd32.exe
2268	AcroRd32.exe
2268	AcroRd32.exe
2268	AcroRd32.exe
2268	AcroRd32.exe
2268	AcroRd32.exe
2268	AcroRd32.exe
2268	AcroRd32.exe
2268	AcroRd32.exe
2268	AcroRd32.exe
2268	AcroRd32.exe
2268	AcroRd32.exe
2268	AcroRd32.exe
2268	AcroRd32.exe
2268	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2268	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
2268	AcroRd32.exe
2268	AcroRd32.exe
2268	AcroRd32.exe
2268	AcroRd32.exe
2268	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2268 wrote to memory of 2272	2268	AcroRd32.exe	93
PID 2268 wrote to memory of 2272	2268	AcroRd32.exe	93
PID 2268 wrote to memory of 2272	2268	AcroRd32.exe	93
PID 2272 wrote to memory of 3532	2272	RdrCEF.exe	94
PID 2272 wrote to memory of 3532	2272	RdrCEF.exe	94
PID 2272 wrote to memory of 3532	2272	RdrCEF.exe	94
PID 2272 wrote to memory of 3532	2272	RdrCEF.exe	94
PID 2272 wrote to memory of 3532	2272	RdrCEF.exe	94
PID 2272 wrote to memory of 3532	2272	RdrCEF.exe	94
PID 2272 wrote to memory of 3532	2272	RdrCEF.exe	94
PID 2272 wrote to memory of 3532	2272	RdrCEF.exe	94
PID 2272 wrote to memory of 3532	2272	RdrCEF.exe	94
PID 2272 wrote to memory of 3532	2272	RdrCEF.exe	94
PID 2272 wrote to memory of 3532	2272	RdrCEF.exe	94
PID 2272 wrote to memory of 3532	2272	RdrCEF.exe	94
PID 2272 wrote to memory of 3532	2272	RdrCEF.exe	94
PID 2272 wrote to memory of 3532	2272	RdrCEF.exe	94
PID 2272 wrote to memory of 3532	2272	RdrCEF.exe	94
PID 2272 wrote to memory of 3532	2272	RdrCEF.exe	94
PID 2272 wrote to memory of 3532	2272	RdrCEF.exe	94
PID 2272 wrote to memory of 3532	2272	RdrCEF.exe	94
PID 2272 wrote to memory of 3532	2272	RdrCEF.exe	94
PID 2272 wrote to memory of 3532	2272	RdrCEF.exe	94
PID 2272 wrote to memory of 3532	2272	RdrCEF.exe	94
PID 2272 wrote to memory of 3532	2272	RdrCEF.exe	94
PID 2272 wrote to memory of 3532	2272	RdrCEF.exe	94
PID 2272 wrote to memory of 3532	2272	RdrCEF.exe	94
PID 2272 wrote to memory of 3532	2272	RdrCEF.exe	94
PID 2272 wrote to memory of 3532	2272	RdrCEF.exe	94
PID 2272 wrote to memory of 3532	2272	RdrCEF.exe	94
PID 2272 wrote to memory of 3532	2272	RdrCEF.exe	94
PID 2272 wrote to memory of 3532	2272	RdrCEF.exe	94
PID 2272 wrote to memory of 3532	2272	RdrCEF.exe	94
PID 2272 wrote to memory of 3532	2272	RdrCEF.exe	94
PID 2272 wrote to memory of 3532	2272	RdrCEF.exe	94
PID 2272 wrote to memory of 3532	2272	RdrCEF.exe	94
PID 2272 wrote to memory of 3532	2272	RdrCEF.exe	94
PID 2272 wrote to memory of 3532	2272	RdrCEF.exe	94
PID 2272 wrote to memory of 3532	2272	RdrCEF.exe	94
PID 2272 wrote to memory of 3532	2272	RdrCEF.exe	94
PID 2272 wrote to memory of 3532	2272	RdrCEF.exe	94
PID 2272 wrote to memory of 3532	2272	RdrCEF.exe	94
PID 2272 wrote to memory of 3532	2272	RdrCEF.exe	94
PID 2272 wrote to memory of 3532	2272	RdrCEF.exe	94
PID 2272 wrote to memory of 2456	2272	RdrCEF.exe	95
PID 2272 wrote to memory of 2456	2272	RdrCEF.exe	95
PID 2272 wrote to memory of 2456	2272	RdrCEF.exe	95
PID 2272 wrote to memory of 2456	2272	RdrCEF.exe	95
PID 2272 wrote to memory of 2456	2272	RdrCEF.exe	95
PID 2272 wrote to memory of 2456	2272	RdrCEF.exe	95
PID 2272 wrote to memory of 2456	2272	RdrCEF.exe	95
PID 2272 wrote to memory of 2456	2272	RdrCEF.exe	95
PID 2272 wrote to memory of 2456	2272	RdrCEF.exe	95
PID 2272 wrote to memory of 2456	2272	RdrCEF.exe	95
PID 2272 wrote to memory of 2456	2272	RdrCEF.exe	95
PID 2272 wrote to memory of 2456	2272	RdrCEF.exe	95
PID 2272 wrote to memory of 2456	2272	RdrCEF.exe	95
PID 2272 wrote to memory of 2456	2272	RdrCEF.exe	95
PID 2272 wrote to memory of 2456	2272	RdrCEF.exe	95
PID 2272 wrote to memory of 2456	2272	RdrCEF.exe	95
PID 2272 wrote to memory of 2456	2272	RdrCEF.exe	95
PID 2272 wrote to memory of 2456	2272	RdrCEF.exe	95
PID 2272 wrote to memory of 2456	2272	RdrCEF.exe	95
PID 2272 wrote to memory of 2456	2272	RdrCEF.exe	95

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\26c6b05dc56043a39d93f05194431420.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:2268
- 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:2272
- - 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=CCDC63CDE8A3C88A3EA053A99C8E7E1A --mojo-platform-channel-handle=1748 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3532
- - 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=AA96A10324977B1AB1227D56B48B17DD --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=AA96A10324977B1AB1227D56B48B17DD --renderer-client-id=2 --mojo-platform-channel-handle=1740 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:2456
- - 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=F1FDC9FF36784D26BCFAB012FDECF775 --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=F1FDC9FF36784D26BCFAB012FDECF775 --renderer-client-id=4 --mojo-platform-channel-handle=2180 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:1052
- - 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=496EF7AC0AD25B81A58563C861C5A1C3 --mojo-platform-channel-handle=2424 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2692
- - 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=77DDE86EB673DAA6F0DD69075E9CC111 --mojo-platform-channel-handle=2636 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3952
- - 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=1F8923AB4DAC7BC226DF85CCD8E9A3FC --mojo-platform-channel-handle=1916 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4272

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:1120

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
d129b683c819bbc1907900b12316aaab

SHA1
b7dc0cf9602b8d3fc7458533f0c89aa75ff67e08

SHA256
15771d079fcc6827e3973af0a9ceed3f4c6f6bce086e43488dd7601e0f38f9bc

SHA512
3c27ebb6a64dd450d1b601ce8b6940cbae5aae2d43765b77541f6d3612ea17f6ca00b6f77a9a5db4d64f5986267ee34f71ca9a22a7760807b742358ad524177b

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