5f57e4ba1fc41d217ff286eb6fb130474f50c1ed1f22915b2493289608c4aa94

Analysis

max time kernel
144s
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
22-12-2023 16:27

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General

Target

efdc0930bef7bca7bb14180c4f4eb7f6.pdf
Size

74KB
MD5

efdc0930bef7bca7bb14180c4f4eb7f6
SHA1

9eab476e833504c92ff6ed86c0534709f5ca9521
SHA256

5f57e4ba1fc41d217ff286eb6fb130474f50c1ed1f22915b2493289608c4aa94
SHA512

3381ca97214f1fafad2a3d2ec8fa38e0068870e636d2b9b8437e69e1520e6f350749bbe4ef872e28d7a1619f9ffe61829b69a2891d0c13727649c739869853ef
SSDEEP

1536:W1Z7t85ZJimwtgH4AaM7zJiBQFFHmwYrrzl+lbsI9P/URjsDtlufPzfNV2yS:yle5HimwtgYEnJpqwpy6P/MwDnGhVG

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-1-5-21-3791175113-1062217823-1177695025-1000\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 5 IoCs

pid	Process
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 1928	4860	AcroRd32.exe	92
PID 4860 wrote to memory of 1928	4860	AcroRd32.exe	92
PID 4860 wrote to memory of 1928	4860	AcroRd32.exe	92
PID 1928 wrote to memory of 876	1928	RdrCEF.exe	94
PID 1928 wrote to memory of 876	1928	RdrCEF.exe	94
PID 1928 wrote to memory of 876	1928	RdrCEF.exe	94
PID 1928 wrote to memory of 876	1928	RdrCEF.exe	94
PID 1928 wrote to memory of 876	1928	RdrCEF.exe	94
PID 1928 wrote to memory of 876	1928	RdrCEF.exe	94
PID 1928 wrote to memory of 876	1928	RdrCEF.exe	94
PID 1928 wrote to memory of 876	1928	RdrCEF.exe	94
PID 1928 wrote to memory of 876	1928	RdrCEF.exe	94
PID 1928 wrote to memory of 876	1928	RdrCEF.exe	94
PID 1928 wrote to memory of 876	1928	RdrCEF.exe	94
PID 1928 wrote to memory of 876	1928	RdrCEF.exe	94
PID 1928 wrote to memory of 876	1928	RdrCEF.exe	94
PID 1928 wrote to memory of 876	1928	RdrCEF.exe	94
PID 1928 wrote to memory of 876	1928	RdrCEF.exe	94
PID 1928 wrote to memory of 876	1928	RdrCEF.exe	94
PID 1928 wrote to memory of 876	1928	RdrCEF.exe	94
PID 1928 wrote to memory of 876	1928	RdrCEF.exe	94
PID 1928 wrote to memory of 876	1928	RdrCEF.exe	94
PID 1928 wrote to memory of 876	1928	RdrCEF.exe	94
PID 1928 wrote to memory of 876	1928	RdrCEF.exe	94
PID 1928 wrote to memory of 876	1928	RdrCEF.exe	94
PID 1928 wrote to memory of 876	1928	RdrCEF.exe	94
PID 1928 wrote to memory of 876	1928	RdrCEF.exe	94
PID 1928 wrote to memory of 876	1928	RdrCEF.exe	94
PID 1928 wrote to memory of 876	1928	RdrCEF.exe	94
PID 1928 wrote to memory of 876	1928	RdrCEF.exe	94
PID 1928 wrote to memory of 876	1928	RdrCEF.exe	94
PID 1928 wrote to memory of 876	1928	RdrCEF.exe	94
PID 1928 wrote to memory of 876	1928	RdrCEF.exe	94
PID 1928 wrote to memory of 876	1928	RdrCEF.exe	94
PID 1928 wrote to memory of 876	1928	RdrCEF.exe	94
PID 1928 wrote to memory of 876	1928	RdrCEF.exe	94
PID 1928 wrote to memory of 876	1928	RdrCEF.exe	94
PID 1928 wrote to memory of 876	1928	RdrCEF.exe	94
PID 1928 wrote to memory of 876	1928	RdrCEF.exe	94
PID 1928 wrote to memory of 876	1928	RdrCEF.exe	94
PID 1928 wrote to memory of 876	1928	RdrCEF.exe	94
PID 1928 wrote to memory of 876	1928	RdrCEF.exe	94
PID 1928 wrote to memory of 876	1928	RdrCEF.exe	94
PID 1928 wrote to memory of 876	1928	RdrCEF.exe	94
PID 1928 wrote to memory of 624	1928	RdrCEF.exe	93
PID 1928 wrote to memory of 624	1928	RdrCEF.exe	93
PID 1928 wrote to memory of 624	1928	RdrCEF.exe	93
PID 1928 wrote to memory of 624	1928	RdrCEF.exe	93
PID 1928 wrote to memory of 624	1928	RdrCEF.exe	93
PID 1928 wrote to memory of 624	1928	RdrCEF.exe	93
PID 1928 wrote to memory of 624	1928	RdrCEF.exe	93
PID 1928 wrote to memory of 624	1928	RdrCEF.exe	93
PID 1928 wrote to memory of 624	1928	RdrCEF.exe	93
PID 1928 wrote to memory of 624	1928	RdrCEF.exe	93
PID 1928 wrote to memory of 624	1928	RdrCEF.exe	93
PID 1928 wrote to memory of 624	1928	RdrCEF.exe	93
PID 1928 wrote to memory of 624	1928	RdrCEF.exe	93
PID 1928 wrote to memory of 624	1928	RdrCEF.exe	93
PID 1928 wrote to memory of 624	1928	RdrCEF.exe	93
PID 1928 wrote to memory of 624	1928	RdrCEF.exe	93
PID 1928 wrote to memory of 624	1928	RdrCEF.exe	93
PID 1928 wrote to memory of 624	1928	RdrCEF.exe	93
PID 1928 wrote to memory of 624	1928	RdrCEF.exe	93
PID 1928 wrote to memory of 624	1928	RdrCEF.exe	93

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\efdc0930bef7bca7bb14180c4f4eb7f6.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:1928
- - 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=0937923A83D5D2C237C29D984CD2960C --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=0937923A83D5D2C237C29D984CD2960C --renderer-client-id=2 --mojo-platform-channel-handle=1732 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:624
- - 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=F402A6FC201440153BECC95DA578ECD0 --mojo-platform-channel-handle=1740 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:876
- - 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=45A80766D432694D04BA8DC37209BFE4 --mojo-platform-channel-handle=2324 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2840
- - 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=956B7195CA1B4005EED85CCB914797DB --mojo-platform-channel-handle=1856 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2404
- - 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=2965B6ABACC65148738AEFEFF80952FC --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=2965B6ABACC65148738AEFEFF80952FC --renderer-client-id=7 --mojo-platform-channel-handle=2320 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:2036
- - 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=68ADCD76176215D4100CD6FB33A5CCD9 --mojo-platform-channel-handle=1716 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4932

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:468

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
06f00a4ddfcc5c6f94a8618e987c9928

SHA1
4423125d05dab1f93cb16e0e8541a73af53882ff

SHA256
18352e874b9eb19ac88774279241237e3618f74c1d883d19ea1d1765d4540efc

SHA512
573874052cbf365ae12d7353309afab61943a2577856b36fd0eab5118cd41c527c75b2a94ce85676ac0ab571c0770125ecf45303d28dbaf1f251c78e663c1410

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