34ef6aba6ab438ff53741ad5751cea65627c9ac0b9450d8414285bd7fb8cb0c5

Analysis

max time kernel
141s
max time network
144s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
03/09/2024, 12:01

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General

Target

043e52fc185e108de8f0aef74e24c45347a2efc4931a4c28a588bc8527b1c4bd.pdf
Size

56KB
MD5

0366ab82e2d7d68a0a9575a40b7b184f
SHA1

ef9ada734fe4a44edd1b7db33997f43394c99e6b
SHA256

043e52fc185e108de8f0aef74e24c45347a2efc4931a4c28a588bc8527b1c4bd
SHA512

4f68034d9f491cc1a5be6151e43ad778ac1168e61d61f761f2d96c60d1cf3f8a066b7a4e81d693100cb0790965f30c5f67dce9a1c8c72b6e59ff0dab02fa42f5
SSDEEP

1536:YOjE08mVevWFbUeXRnJDzzhk4p+ub6xd6dWyZ65:18mVi+HpJDzzX+uW0W

Score

3^/10

discovery

Malware Config

Signatures

System Location Discovery: System Language Discovery 1 TTPs 7 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RdrCEF.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RdrCEF.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RdrCEF.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RdrCEF.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RdrCEF.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RdrCEF.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AcroRd32.exe

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-1-5-21-786284298-625481688-3210388970-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
1088	AcroRd32.exe
1088	AcroRd32.exe
1088	AcroRd32.exe
1088	AcroRd32.exe
1088	AcroRd32.exe
1088	AcroRd32.exe
1088	AcroRd32.exe
1088	AcroRd32.exe
1088	AcroRd32.exe
1088	AcroRd32.exe
1088	AcroRd32.exe
1088	AcroRd32.exe
1088	AcroRd32.exe
1088	AcroRd32.exe
1088	AcroRd32.exe
1088	AcroRd32.exe
1088	AcroRd32.exe
1088	AcroRd32.exe
1088	AcroRd32.exe
1088	AcroRd32.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
1088	AcroRd32.exe
1088	AcroRd32.exe
1088	AcroRd32.exe
1088	AcroRd32.exe
1088	AcroRd32.exe
1088	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 1088 wrote to memory of 3448	1088	AcroRd32.exe	89
PID 1088 wrote to memory of 3448	1088	AcroRd32.exe	89
PID 1088 wrote to memory of 3448	1088	AcroRd32.exe	89
PID 3448 wrote to memory of 3820	3448	RdrCEF.exe	90
PID 3448 wrote to memory of 3820	3448	RdrCEF.exe	90
PID 3448 wrote to memory of 3820	3448	RdrCEF.exe	90
PID 3448 wrote to memory of 3820	3448	RdrCEF.exe	90
PID 3448 wrote to memory of 3820	3448	RdrCEF.exe	90
PID 3448 wrote to memory of 3820	3448	RdrCEF.exe	90
PID 3448 wrote to memory of 3820	3448	RdrCEF.exe	90
PID 3448 wrote to memory of 3820	3448	RdrCEF.exe	90
PID 3448 wrote to memory of 3820	3448	RdrCEF.exe	90
PID 3448 wrote to memory of 3820	3448	RdrCEF.exe	90
PID 3448 wrote to memory of 3820	3448	RdrCEF.exe	90
PID 3448 wrote to memory of 3820	3448	RdrCEF.exe	90
PID 3448 wrote to memory of 3820	3448	RdrCEF.exe	90
PID 3448 wrote to memory of 3820	3448	RdrCEF.exe	90
PID 3448 wrote to memory of 3820	3448	RdrCEF.exe	90
PID 3448 wrote to memory of 3820	3448	RdrCEF.exe	90
PID 3448 wrote to memory of 3820	3448	RdrCEF.exe	90
PID 3448 wrote to memory of 3820	3448	RdrCEF.exe	90
PID 3448 wrote to memory of 3820	3448	RdrCEF.exe	90
PID 3448 wrote to memory of 3820	3448	RdrCEF.exe	90
PID 3448 wrote to memory of 3820	3448	RdrCEF.exe	90
PID 3448 wrote to memory of 3820	3448	RdrCEF.exe	90
PID 3448 wrote to memory of 3820	3448	RdrCEF.exe	90
PID 3448 wrote to memory of 3820	3448	RdrCEF.exe	90
PID 3448 wrote to memory of 3820	3448	RdrCEF.exe	90
PID 3448 wrote to memory of 3820	3448	RdrCEF.exe	90
PID 3448 wrote to memory of 3820	3448	RdrCEF.exe	90
PID 3448 wrote to memory of 3820	3448	RdrCEF.exe	90
PID 3448 wrote to memory of 3820	3448	RdrCEF.exe	90
PID 3448 wrote to memory of 3820	3448	RdrCEF.exe	90
PID 3448 wrote to memory of 3820	3448	RdrCEF.exe	90
PID 3448 wrote to memory of 3820	3448	RdrCEF.exe	90
PID 3448 wrote to memory of 3820	3448	RdrCEF.exe	90
PID 3448 wrote to memory of 3820	3448	RdrCEF.exe	90
PID 3448 wrote to memory of 3820	3448	RdrCEF.exe	90
PID 3448 wrote to memory of 3820	3448	RdrCEF.exe	90
PID 3448 wrote to memory of 3820	3448	RdrCEF.exe	90
PID 3448 wrote to memory of 3820	3448	RdrCEF.exe	90
PID 3448 wrote to memory of 3820	3448	RdrCEF.exe	90
PID 3448 wrote to memory of 3820	3448	RdrCEF.exe	90
PID 3448 wrote to memory of 3820	3448	RdrCEF.exe	90
PID 3448 wrote to memory of 3608	3448	RdrCEF.exe	91
PID 3448 wrote to memory of 3608	3448	RdrCEF.exe	91
PID 3448 wrote to memory of 3608	3448	RdrCEF.exe	91
PID 3448 wrote to memory of 3608	3448	RdrCEF.exe	91
PID 3448 wrote to memory of 3608	3448	RdrCEF.exe	91
PID 3448 wrote to memory of 3608	3448	RdrCEF.exe	91
PID 3448 wrote to memory of 3608	3448	RdrCEF.exe	91
PID 3448 wrote to memory of 3608	3448	RdrCEF.exe	91
PID 3448 wrote to memory of 3608	3448	RdrCEF.exe	91
PID 3448 wrote to memory of 3608	3448	RdrCEF.exe	91
PID 3448 wrote to memory of 3608	3448	RdrCEF.exe	91
PID 3448 wrote to memory of 3608	3448	RdrCEF.exe	91
PID 3448 wrote to memory of 3608	3448	RdrCEF.exe	91
PID 3448 wrote to memory of 3608	3448	RdrCEF.exe	91
PID 3448 wrote to memory of 3608	3448	RdrCEF.exe	91
PID 3448 wrote to memory of 3608	3448	RdrCEF.exe	91
PID 3448 wrote to memory of 3608	3448	RdrCEF.exe	91
PID 3448 wrote to memory of 3608	3448	RdrCEF.exe	91
PID 3448 wrote to memory of 3608	3448	RdrCEF.exe	91
PID 3448 wrote to memory of 3608	3448	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\043e52fc185e108de8f0aef74e24c45347a2efc4931a4c28a588bc8527b1c4bd.pdf"
1⤵
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1088
- 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⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3448
- - 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=DA06E82141B7222CD46A8A50C6661DEC --mojo-platform-channel-handle=1724 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3820
- - 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=0489279754F5007B44B3B1029AF69D0A --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=0489279754F5007B44B3B1029AF69D0A --renderer-client-id=2 --mojo-platform-channel-handle=1736 --allow-no-sandbox-job /prefetch:1
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3608
- - 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=90D43544B6F12B6BAE2604E7DE7528EB --mojo-platform-channel-handle=2280 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4884
- - 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=FFBA817FD2FCEDEA5FC4F1B63EA8AD02 --mojo-platform-channel-handle=1916 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1344
- - 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=32C63A6F60705FADCEB4674A41E5153E --mojo-platform-channel-handle=2288 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2628

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:4880

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

System Location Discovery

T1614

System Language Discovery

T1614.001

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
ad85a81654931fad48634aaea948b9d3

SHA1
143150b67f14cb480424d3d5c5a57f35a46346ca

SHA256
2cb1c4ef01560eb62b0225ba8137b04946486712384bc979f77a4628e5b65989

SHA512
e20d0925594475c4d3ce4c7991915903b87493f29aa820c397fed744833469dd8db6beb4462e61860123787f995e149f1d8ba3bb25df5e264f2c06380808e4d5

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