b39faac980a01e7f44b04c0a5dca34bdb7971ba2d015aae4e08b8f07eead9fd2

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240221-en
resource tags

arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
submitted
25/02/2024, 06:58

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General

Target

a329523400cc9758b2f8b000420397dd.pdf
Size

40KB
MD5

a329523400cc9758b2f8b000420397dd
SHA1

c8301dc4803d5b26318bbbb92e0d737c7ddaab6e
SHA256

b39faac980a01e7f44b04c0a5dca34bdb7971ba2d015aae4e08b8f07eead9fd2
SHA512

d2106199b62fde3cd950c03c26dbc85c21cb38b893b26fdf22c2953d6c9d0c108d852d9faa02e4bd4167fa2bc77ed6900ee9fcfe6d1f54f98c4d62db7098d912
SSDEEP

768:/gGzpDedWEZuIOQsIQHscR6achnjKc4HkxNJNS/6gt3nhrncTrGy:IGFS4Qb6FkachnQHk/JNC6gt3nhrncTT

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-1-5-21-910440534-423636034-2318342392-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
2896	AcroRd32.exe
2896	AcroRd32.exe
2896	AcroRd32.exe
2896	AcroRd32.exe
2896	AcroRd32.exe
2896	AcroRd32.exe
2896	AcroRd32.exe
2896	AcroRd32.exe
2896	AcroRd32.exe
2896	AcroRd32.exe
2896	AcroRd32.exe
2896	AcroRd32.exe
2896	AcroRd32.exe
2896	AcroRd32.exe
2896	AcroRd32.exe
2896	AcroRd32.exe
2896	AcroRd32.exe
2896	AcroRd32.exe
2896	AcroRd32.exe
2896	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2896	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
2896	AcroRd32.exe
2896	AcroRd32.exe
2896	AcroRd32.exe
2896	AcroRd32.exe
2896	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2896 wrote to memory of 1300	2896	AcroRd32.exe	89
PID 2896 wrote to memory of 1300	2896	AcroRd32.exe	89
PID 2896 wrote to memory of 1300	2896	AcroRd32.exe	89
PID 1300 wrote to memory of 2912	1300	RdrCEF.exe	90
PID 1300 wrote to memory of 2912	1300	RdrCEF.exe	90
PID 1300 wrote to memory of 2912	1300	RdrCEF.exe	90
PID 1300 wrote to memory of 2912	1300	RdrCEF.exe	90
PID 1300 wrote to memory of 2912	1300	RdrCEF.exe	90
PID 1300 wrote to memory of 2912	1300	RdrCEF.exe	90
PID 1300 wrote to memory of 2912	1300	RdrCEF.exe	90
PID 1300 wrote to memory of 2912	1300	RdrCEF.exe	90
PID 1300 wrote to memory of 2912	1300	RdrCEF.exe	90
PID 1300 wrote to memory of 2912	1300	RdrCEF.exe	90
PID 1300 wrote to memory of 2912	1300	RdrCEF.exe	90
PID 1300 wrote to memory of 2912	1300	RdrCEF.exe	90
PID 1300 wrote to memory of 2912	1300	RdrCEF.exe	90
PID 1300 wrote to memory of 2912	1300	RdrCEF.exe	90
PID 1300 wrote to memory of 2912	1300	RdrCEF.exe	90
PID 1300 wrote to memory of 2912	1300	RdrCEF.exe	90
PID 1300 wrote to memory of 2912	1300	RdrCEF.exe	90
PID 1300 wrote to memory of 2912	1300	RdrCEF.exe	90
PID 1300 wrote to memory of 2912	1300	RdrCEF.exe	90
PID 1300 wrote to memory of 2912	1300	RdrCEF.exe	90
PID 1300 wrote to memory of 2912	1300	RdrCEF.exe	90
PID 1300 wrote to memory of 2912	1300	RdrCEF.exe	90
PID 1300 wrote to memory of 2912	1300	RdrCEF.exe	90
PID 1300 wrote to memory of 2912	1300	RdrCEF.exe	90
PID 1300 wrote to memory of 2912	1300	RdrCEF.exe	90
PID 1300 wrote to memory of 2912	1300	RdrCEF.exe	90
PID 1300 wrote to memory of 2912	1300	RdrCEF.exe	90
PID 1300 wrote to memory of 2912	1300	RdrCEF.exe	90
PID 1300 wrote to memory of 2912	1300	RdrCEF.exe	90
PID 1300 wrote to memory of 2912	1300	RdrCEF.exe	90
PID 1300 wrote to memory of 2912	1300	RdrCEF.exe	90
PID 1300 wrote to memory of 2912	1300	RdrCEF.exe	90
PID 1300 wrote to memory of 2912	1300	RdrCEF.exe	90
PID 1300 wrote to memory of 2912	1300	RdrCEF.exe	90
PID 1300 wrote to memory of 2912	1300	RdrCEF.exe	90
PID 1300 wrote to memory of 2912	1300	RdrCEF.exe	90
PID 1300 wrote to memory of 2912	1300	RdrCEF.exe	90
PID 1300 wrote to memory of 2912	1300	RdrCEF.exe	90
PID 1300 wrote to memory of 2912	1300	RdrCEF.exe	90
PID 1300 wrote to memory of 2912	1300	RdrCEF.exe	90
PID 1300 wrote to memory of 2912	1300	RdrCEF.exe	90
PID 1300 wrote to memory of 4520	1300	RdrCEF.exe	91
PID 1300 wrote to memory of 4520	1300	RdrCEF.exe	91
PID 1300 wrote to memory of 4520	1300	RdrCEF.exe	91
PID 1300 wrote to memory of 4520	1300	RdrCEF.exe	91
PID 1300 wrote to memory of 4520	1300	RdrCEF.exe	91
PID 1300 wrote to memory of 4520	1300	RdrCEF.exe	91
PID 1300 wrote to memory of 4520	1300	RdrCEF.exe	91
PID 1300 wrote to memory of 4520	1300	RdrCEF.exe	91
PID 1300 wrote to memory of 4520	1300	RdrCEF.exe	91
PID 1300 wrote to memory of 4520	1300	RdrCEF.exe	91
PID 1300 wrote to memory of 4520	1300	RdrCEF.exe	91
PID 1300 wrote to memory of 4520	1300	RdrCEF.exe	91
PID 1300 wrote to memory of 4520	1300	RdrCEF.exe	91
PID 1300 wrote to memory of 4520	1300	RdrCEF.exe	91
PID 1300 wrote to memory of 4520	1300	RdrCEF.exe	91
PID 1300 wrote to memory of 4520	1300	RdrCEF.exe	91
PID 1300 wrote to memory of 4520	1300	RdrCEF.exe	91
PID 1300 wrote to memory of 4520	1300	RdrCEF.exe	91
PID 1300 wrote to memory of 4520	1300	RdrCEF.exe	91
PID 1300 wrote to memory of 4520	1300	RdrCEF.exe	91

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\a329523400cc9758b2f8b000420397dd.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:2896
- 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:1300
- - 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=4EDD8C797629420DCA29320367B2275B --mojo-platform-channel-handle=1752 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2912
- - 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=76F7D6DAE7EB6E3AD9C960834D778B27 --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=76F7D6DAE7EB6E3AD9C960834D778B27 --renderer-client-id=2 --mojo-platform-channel-handle=1764 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4520
- - 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=C31537EC5209900E83EA291777E52640 --mojo-platform-channel-handle=2300 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:60
- - 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=536357E277AEA3F55D6E787292D1AF1A --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=536357E277AEA3F55D6E787292D1AF1A --renderer-client-id=5 --mojo-platform-channel-handle=1964 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:2492
- - 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=70ABD07BFEF39E09586F09F0FE9C95E5 --mojo-platform-channel-handle=2444 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    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=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=38C40BF943DAA870C89DC6F74238FF0E --mojo-platform-channel-handle=2372 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2804

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:4500

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
cb6d299f659d2297950c4cf62c4a3e5b

SHA1
c382121a4623e032cc364bed139fc9b92eb6efce

SHA256
f69c04362186eff8cf626cdd315388d7b46d17809a9ac6506465e53ee1ba0b2f

SHA512
03ea3ec00a68de66b8ade1bacd68fdfac8a2580d6f6e39607d82204eaeb068d4963b77e8226604571675be3bac85fc39d8ac7a8cd0b3db42fe39cdc4dcbf88f1

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