a6be122470d4a3af022cd5f0fb9cca30125a1e513c4b695565d0679b5b8fdc7b

Analysis

max time kernel
144s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
03-02-2024 07:05

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General

Target

8bb4bae742cf1c359d00a7529f511620.pdf
Size

91KB
MD5

8bb4bae742cf1c359d00a7529f511620
SHA1

35a08b9771b90d60193d9ccb3c1d28975f73eebe
SHA256

a6be122470d4a3af022cd5f0fb9cca30125a1e513c4b695565d0679b5b8fdc7b
SHA512

5e4c26ddc829ec4398aa6c59b3d1588ad56bc8333258fa7d9eb1ccc3e9bbebda7c77721e9327a024fa5f20d8c65350a80a7e24a612b323133139b9ed27f1aa76
SSDEEP

1536:zzoy16HUC3/o4rQxj9WY4Cxugnmdti+8FGXgBkLO6WsI9ZF6GzEdkWOpOwrKW0nL:cUU9QRWYNmd8nFGXgS6II9ZQG2Bwry0g

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-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
3816	AcroRd32.exe
3816	AcroRd32.exe
3816	AcroRd32.exe
3816	AcroRd32.exe
3816	AcroRd32.exe
3816	AcroRd32.exe
3816	AcroRd32.exe
3816	AcroRd32.exe
3816	AcroRd32.exe
3816	AcroRd32.exe
3816	AcroRd32.exe
3816	AcroRd32.exe
3816	AcroRd32.exe
3816	AcroRd32.exe
3816	AcroRd32.exe
3816	AcroRd32.exe
3816	AcroRd32.exe
3816	AcroRd32.exe
3816	AcroRd32.exe
3816	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3816	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
3816	AcroRd32.exe
3816	AcroRd32.exe
3816	AcroRd32.exe
3816	AcroRd32.exe
3816	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 3816 wrote to memory of 4940	3816	AcroRd32.exe	86
PID 3816 wrote to memory of 4940	3816	AcroRd32.exe	86
PID 3816 wrote to memory of 4940	3816	AcroRd32.exe	86
PID 4940 wrote to memory of 4864	4940	RdrCEF.exe	88
PID 4940 wrote to memory of 4864	4940	RdrCEF.exe	88
PID 4940 wrote to memory of 4864	4940	RdrCEF.exe	88
PID 4940 wrote to memory of 4864	4940	RdrCEF.exe	88
PID 4940 wrote to memory of 4864	4940	RdrCEF.exe	88
PID 4940 wrote to memory of 4864	4940	RdrCEF.exe	88
PID 4940 wrote to memory of 4864	4940	RdrCEF.exe	88
PID 4940 wrote to memory of 4864	4940	RdrCEF.exe	88
PID 4940 wrote to memory of 4864	4940	RdrCEF.exe	88
PID 4940 wrote to memory of 4864	4940	RdrCEF.exe	88
PID 4940 wrote to memory of 4864	4940	RdrCEF.exe	88
PID 4940 wrote to memory of 4864	4940	RdrCEF.exe	88
PID 4940 wrote to memory of 4864	4940	RdrCEF.exe	88
PID 4940 wrote to memory of 4864	4940	RdrCEF.exe	88
PID 4940 wrote to memory of 4864	4940	RdrCEF.exe	88
PID 4940 wrote to memory of 4864	4940	RdrCEF.exe	88
PID 4940 wrote to memory of 4864	4940	RdrCEF.exe	88
PID 4940 wrote to memory of 4864	4940	RdrCEF.exe	88
PID 4940 wrote to memory of 4864	4940	RdrCEF.exe	88
PID 4940 wrote to memory of 4864	4940	RdrCEF.exe	88
PID 4940 wrote to memory of 4864	4940	RdrCEF.exe	88
PID 4940 wrote to memory of 4864	4940	RdrCEF.exe	88
PID 4940 wrote to memory of 4864	4940	RdrCEF.exe	88
PID 4940 wrote to memory of 4864	4940	RdrCEF.exe	88
PID 4940 wrote to memory of 4864	4940	RdrCEF.exe	88
PID 4940 wrote to memory of 4864	4940	RdrCEF.exe	88
PID 4940 wrote to memory of 4864	4940	RdrCEF.exe	88
PID 4940 wrote to memory of 4864	4940	RdrCEF.exe	88
PID 4940 wrote to memory of 4864	4940	RdrCEF.exe	88
PID 4940 wrote to memory of 4864	4940	RdrCEF.exe	88
PID 4940 wrote to memory of 4864	4940	RdrCEF.exe	88
PID 4940 wrote to memory of 4864	4940	RdrCEF.exe	88
PID 4940 wrote to memory of 4864	4940	RdrCEF.exe	88
PID 4940 wrote to memory of 4864	4940	RdrCEF.exe	88
PID 4940 wrote to memory of 4864	4940	RdrCEF.exe	88
PID 4940 wrote to memory of 4864	4940	RdrCEF.exe	88
PID 4940 wrote to memory of 4864	4940	RdrCEF.exe	88
PID 4940 wrote to memory of 4864	4940	RdrCEF.exe	88
PID 4940 wrote to memory of 4864	4940	RdrCEF.exe	88
PID 4940 wrote to memory of 4864	4940	RdrCEF.exe	88
PID 4940 wrote to memory of 4864	4940	RdrCEF.exe	88
PID 4940 wrote to memory of 4248	4940	RdrCEF.exe	87
PID 4940 wrote to memory of 4248	4940	RdrCEF.exe	87
PID 4940 wrote to memory of 4248	4940	RdrCEF.exe	87
PID 4940 wrote to memory of 4248	4940	RdrCEF.exe	87
PID 4940 wrote to memory of 4248	4940	RdrCEF.exe	87
PID 4940 wrote to memory of 4248	4940	RdrCEF.exe	87
PID 4940 wrote to memory of 4248	4940	RdrCEF.exe	87
PID 4940 wrote to memory of 4248	4940	RdrCEF.exe	87
PID 4940 wrote to memory of 4248	4940	RdrCEF.exe	87
PID 4940 wrote to memory of 4248	4940	RdrCEF.exe	87
PID 4940 wrote to memory of 4248	4940	RdrCEF.exe	87
PID 4940 wrote to memory of 4248	4940	RdrCEF.exe	87
PID 4940 wrote to memory of 4248	4940	RdrCEF.exe	87
PID 4940 wrote to memory of 4248	4940	RdrCEF.exe	87
PID 4940 wrote to memory of 4248	4940	RdrCEF.exe	87
PID 4940 wrote to memory of 4248	4940	RdrCEF.exe	87
PID 4940 wrote to memory of 4248	4940	RdrCEF.exe	87
PID 4940 wrote to memory of 4248	4940	RdrCEF.exe	87
PID 4940 wrote to memory of 4248	4940	RdrCEF.exe	87
PID 4940 wrote to memory of 4248	4940	RdrCEF.exe	87

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\8bb4bae742cf1c359d00a7529f511620.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:3816
- 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:4940
- - 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=EE1C5E2ACEB27773C93A232540F093EB --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=EE1C5E2ACEB27773C93A232540F093EB --renderer-client-id=2 --mojo-platform-channel-handle=1752 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4248
- - 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=7072D5D88A4284D6CF413913F6B1F7C4 --mojo-platform-channel-handle=1744 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4864
- - 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=4AC96A3FE387DC91EE339DE402526968 --mojo-platform-channel-handle=2288 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4996
- - 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=85D99B46CA44D7153938873CDA4688C1 --mojo-platform-channel-handle=2424 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2904
- - 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=A5ED9C2683105AE0C907A76094054989 --mojo-platform-channel-handle=2500 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4304
- - 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=2B459E443BDA87BD12237CEAD4D5064A --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=2B459E443BDA87BD12237CEAD4D5064A --renderer-client-id=7 --mojo-platform-channel-handle=2432 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:3304

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:3996

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
69e97d9351427b569f7804a1deaef49c

SHA1
f8a24e1a507a8f40778f02cc8c4a6857aa2a2236

SHA256
7b509140cecf89daeffeec5f9f2a5ab39afcc965798b89689b848c67e12828e1

SHA512
4819f8ea469ea98bfd1dd2c5918f0eb10892dbaa8b252f83be52c251f0e3ca694074c985f277b594d9cd2bc2255e501e323af8665800d54c6a5b87e5c8520c1b

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