238f93ec46d2f872efb174cf12a2a7ced0223e1cf6032f428b08fd345eae5a11

Analysis

max time kernel
148s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240221-en
resource tags

arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
submitted
24/02/2024, 20:07

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General

Target

a2a3bfeed8887f3efaa1e7e67ba2e4cd.pdf
Size

91KB
MD5

a2a3bfeed8887f3efaa1e7e67ba2e4cd
SHA1

7fc5d5a54b0d77a4c8fe8fc46ac6908027ce3984
SHA256

238f93ec46d2f872efb174cf12a2a7ced0223e1cf6032f428b08fd345eae5a11
SHA512

4ad8e1ea1e41b441dc53b85f623fd570960617b320859ca446bfc7731cdd3439f4bf065f7492d6bc91f7b6130b02befc3b16341b63b2343761be5055e4054fe9
SSDEEP

1536:ldAc+f+OAWRml8gitR5OUEsInKjJSgXFl5TjTWspO2luUuWG7Y5pmUFF:LAFtml8g8R5OUEfn8JSg1lha2lxmopn

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-1-5-21-1414748551-1520717498-2956787782-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
4260	AcroRd32.exe
4260	AcroRd32.exe
4260	AcroRd32.exe
4260	AcroRd32.exe
4260	AcroRd32.exe
4260	AcroRd32.exe
4260	AcroRd32.exe
4260	AcroRd32.exe
4260	AcroRd32.exe
4260	AcroRd32.exe
4260	AcroRd32.exe
4260	AcroRd32.exe
4260	AcroRd32.exe
4260	AcroRd32.exe
4260	AcroRd32.exe
4260	AcroRd32.exe
4260	AcroRd32.exe
4260	AcroRd32.exe
4260	AcroRd32.exe
4260	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4260	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
4260	AcroRd32.exe
4260	AcroRd32.exe
4260	AcroRd32.exe
4260	AcroRd32.exe
4260	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4260 wrote to memory of 1696	4260	AcroRd32.exe	91
PID 4260 wrote to memory of 1696	4260	AcroRd32.exe	91
PID 4260 wrote to memory of 1696	4260	AcroRd32.exe	91
PID 1696 wrote to memory of 3676	1696	RdrCEF.exe	92
PID 1696 wrote to memory of 3676	1696	RdrCEF.exe	92
PID 1696 wrote to memory of 3676	1696	RdrCEF.exe	92
PID 1696 wrote to memory of 3676	1696	RdrCEF.exe	92
PID 1696 wrote to memory of 3676	1696	RdrCEF.exe	92
PID 1696 wrote to memory of 3676	1696	RdrCEF.exe	92
PID 1696 wrote to memory of 3676	1696	RdrCEF.exe	92
PID 1696 wrote to memory of 3676	1696	RdrCEF.exe	92
PID 1696 wrote to memory of 3676	1696	RdrCEF.exe	92
PID 1696 wrote to memory of 3676	1696	RdrCEF.exe	92
PID 1696 wrote to memory of 3676	1696	RdrCEF.exe	92
PID 1696 wrote to memory of 3676	1696	RdrCEF.exe	92
PID 1696 wrote to memory of 3676	1696	RdrCEF.exe	92
PID 1696 wrote to memory of 3676	1696	RdrCEF.exe	92
PID 1696 wrote to memory of 3676	1696	RdrCEF.exe	92
PID 1696 wrote to memory of 3676	1696	RdrCEF.exe	92
PID 1696 wrote to memory of 3676	1696	RdrCEF.exe	92
PID 1696 wrote to memory of 3676	1696	RdrCEF.exe	92
PID 1696 wrote to memory of 3676	1696	RdrCEF.exe	92
PID 1696 wrote to memory of 3676	1696	RdrCEF.exe	92
PID 1696 wrote to memory of 3676	1696	RdrCEF.exe	92
PID 1696 wrote to memory of 3676	1696	RdrCEF.exe	92
PID 1696 wrote to memory of 3676	1696	RdrCEF.exe	92
PID 1696 wrote to memory of 3676	1696	RdrCEF.exe	92
PID 1696 wrote to memory of 3676	1696	RdrCEF.exe	92
PID 1696 wrote to memory of 3676	1696	RdrCEF.exe	92
PID 1696 wrote to memory of 3676	1696	RdrCEF.exe	92
PID 1696 wrote to memory of 3676	1696	RdrCEF.exe	92
PID 1696 wrote to memory of 3676	1696	RdrCEF.exe	92
PID 1696 wrote to memory of 3676	1696	RdrCEF.exe	92
PID 1696 wrote to memory of 3676	1696	RdrCEF.exe	92
PID 1696 wrote to memory of 3676	1696	RdrCEF.exe	92
PID 1696 wrote to memory of 3676	1696	RdrCEF.exe	92
PID 1696 wrote to memory of 3676	1696	RdrCEF.exe	92
PID 1696 wrote to memory of 3676	1696	RdrCEF.exe	92
PID 1696 wrote to memory of 3676	1696	RdrCEF.exe	92
PID 1696 wrote to memory of 3676	1696	RdrCEF.exe	92
PID 1696 wrote to memory of 3676	1696	RdrCEF.exe	92
PID 1696 wrote to memory of 3676	1696	RdrCEF.exe	92
PID 1696 wrote to memory of 3676	1696	RdrCEF.exe	92
PID 1696 wrote to memory of 3676	1696	RdrCEF.exe	92
PID 1696 wrote to memory of 4892	1696	RdrCEF.exe	93
PID 1696 wrote to memory of 4892	1696	RdrCEF.exe	93
PID 1696 wrote to memory of 4892	1696	RdrCEF.exe	93
PID 1696 wrote to memory of 4892	1696	RdrCEF.exe	93
PID 1696 wrote to memory of 4892	1696	RdrCEF.exe	93
PID 1696 wrote to memory of 4892	1696	RdrCEF.exe	93
PID 1696 wrote to memory of 4892	1696	RdrCEF.exe	93
PID 1696 wrote to memory of 4892	1696	RdrCEF.exe	93
PID 1696 wrote to memory of 4892	1696	RdrCEF.exe	93
PID 1696 wrote to memory of 4892	1696	RdrCEF.exe	93
PID 1696 wrote to memory of 4892	1696	RdrCEF.exe	93
PID 1696 wrote to memory of 4892	1696	RdrCEF.exe	93
PID 1696 wrote to memory of 4892	1696	RdrCEF.exe	93
PID 1696 wrote to memory of 4892	1696	RdrCEF.exe	93
PID 1696 wrote to memory of 4892	1696	RdrCEF.exe	93
PID 1696 wrote to memory of 4892	1696	RdrCEF.exe	93
PID 1696 wrote to memory of 4892	1696	RdrCEF.exe	93
PID 1696 wrote to memory of 4892	1696	RdrCEF.exe	93
PID 1696 wrote to memory of 4892	1696	RdrCEF.exe	93
PID 1696 wrote to memory of 4892	1696	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\a2a3bfeed8887f3efaa1e7e67ba2e4cd.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:4260
- 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:1696
- - 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=A02158F6FA8928F1647D5AA8191DFFD6 --mojo-platform-channel-handle=1736 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3676
- - 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=3249479895CDA795F8699DA792669599 --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=3249479895CDA795F8699DA792669599 --renderer-client-id=2 --mojo-platform-channel-handle=1764 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4892
- - 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=11DCDEC224834613282FD24E29986C8F --mojo-platform-channel-handle=2188 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4804
- - 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=DF0C40E2DC81B2A7E58FDB9423532A86 --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=DF0C40E2DC81B2A7E58FDB9423532A86 --renderer-client-id=5 --mojo-platform-channel-handle=1804 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4872
- - 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=023AE67C983D48BFE2426DB8999DA222 --mojo-platform-channel-handle=1920 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3028
- - 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=345BE48229253BC8E1DD8BCD23799E9D --mojo-platform-channel-handle=1728 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2964

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:5056

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
1f5f18a054a9e7f214fcd5bbc22036e0

SHA1
12fedbe83c222d9de5c87a5286aefb5dcc6679fa

SHA256
10f4cb3de5c12021160e36f9c7d220c8edd982616bf1edf60608fabe499f74ff

SHA512
07fdb1d5fcee13a72b67e7d36aaa31473d2337a55745058222e96bcd348ce4c79a413ba890601efb6c92feef4dfc5bc9e4eb4e2c43e79bf38a63ac1e8dd9cfac

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