1ab7fef81e4a5325f70a7eb8f1e551edaa6344d16eb1aeca68974d89bb4e40db

Resubmissions

11/03/2025, 16:25

250311-txbamsxq12 10

10/03/2025, 16:59

250310-vhtzwastaz 10

Analysis

max time kernel
95s
max time network
97s
platform
windows10-ltsc 2021_x64
resource
win10ltsc2021-20250217-en
resource tags

arch:x64arch:x86image:win10ltsc2021-20250217-enlocale:en-usos:windows10-ltsc 2021-x64system
submitted
10/03/2025, 16:59

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General

Target

Stub.pyc
Size

799KB
MD5

5605a3e3ebb0727418f44354843c53b8
SHA1

991ab1a7950376f27d0e13be4156cdc921d128ea
SHA256

71be841e886152241dcd0752b6e72c4e5d177fe649889905cbd51547c0d9e0e2
SHA512

3c8b79529c86c74d398be7704282bdbd1f82b9f65b458f16ca9b02a964f830efe8772189c5b4f30c1a4c209a35522eed658af11b60e2857e45c663d3a64053f8
SSDEEP

24576:xdUK0BvxxQlxhqVCiLYzYtVGTCyw4Tr2sKT:EhlvQrViVATKT

Score

3^/10

discovery

Malware Config

Signatures

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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	AcroRd32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RdrCEF.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RdrCEF.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-1-5-21-80166876-2127584002-2233670790-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Modifies registry class 2 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-80166876-2127584002-2233670790-1000_Classes\Local Settings	cmd.exe
Key created	\REGISTRY\USER\S-1-5-21-80166876-2127584002-2233670790-1000_Classes\Local Settings	OpenWith.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4444	OpenWith.exe

Suspicious use of SetWindowsHookEx 33 IoCs

pid	Process
4444	OpenWith.exe
4444	OpenWith.exe
4444	OpenWith.exe
4444	OpenWith.exe
4444	OpenWith.exe
4444	OpenWith.exe
4444	OpenWith.exe
4444	OpenWith.exe
4444	OpenWith.exe
4444	OpenWith.exe
4444	OpenWith.exe
4444	OpenWith.exe
4444	OpenWith.exe
4444	OpenWith.exe
4444	OpenWith.exe
4444	OpenWith.exe
4444	OpenWith.exe
4444	OpenWith.exe
4444	OpenWith.exe
4444	OpenWith.exe
4444	OpenWith.exe
4444	OpenWith.exe
4444	OpenWith.exe
4444	OpenWith.exe
4444	OpenWith.exe
4444	OpenWith.exe
4444	OpenWith.exe
4444	OpenWith.exe
4444	OpenWith.exe
1524	AcroRd32.exe
1524	AcroRd32.exe
1524	AcroRd32.exe
1524	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4444 wrote to memory of 1524	4444	OpenWith.exe	89
PID 4444 wrote to memory of 1524	4444	OpenWith.exe	89
PID 4444 wrote to memory of 1524	4444	OpenWith.exe	89
PID 1524 wrote to memory of 2636	1524	AcroRd32.exe	91
PID 1524 wrote to memory of 2636	1524	AcroRd32.exe	91
PID 1524 wrote to memory of 2636	1524	AcroRd32.exe	91
PID 2636 wrote to memory of 1280	2636	RdrCEF.exe	92
PID 2636 wrote to memory of 1280	2636	RdrCEF.exe	92
PID 2636 wrote to memory of 1280	2636	RdrCEF.exe	92
PID 2636 wrote to memory of 1280	2636	RdrCEF.exe	92
PID 2636 wrote to memory of 1280	2636	RdrCEF.exe	92
PID 2636 wrote to memory of 1280	2636	RdrCEF.exe	92
PID 2636 wrote to memory of 1280	2636	RdrCEF.exe	92
PID 2636 wrote to memory of 1280	2636	RdrCEF.exe	92
PID 2636 wrote to memory of 1280	2636	RdrCEF.exe	92
PID 2636 wrote to memory of 1280	2636	RdrCEF.exe	92
PID 2636 wrote to memory of 1280	2636	RdrCEF.exe	92
PID 2636 wrote to memory of 1280	2636	RdrCEF.exe	92
PID 2636 wrote to memory of 1280	2636	RdrCEF.exe	92
PID 2636 wrote to memory of 1280	2636	RdrCEF.exe	92
PID 2636 wrote to memory of 1280	2636	RdrCEF.exe	92
PID 2636 wrote to memory of 1280	2636	RdrCEF.exe	92
PID 2636 wrote to memory of 1280	2636	RdrCEF.exe	92
PID 2636 wrote to memory of 1280	2636	RdrCEF.exe	92
PID 2636 wrote to memory of 1280	2636	RdrCEF.exe	92
PID 2636 wrote to memory of 1280	2636	RdrCEF.exe	92
PID 2636 wrote to memory of 1280	2636	RdrCEF.exe	92
PID 2636 wrote to memory of 1280	2636	RdrCEF.exe	92
PID 2636 wrote to memory of 1280	2636	RdrCEF.exe	92
PID 2636 wrote to memory of 1280	2636	RdrCEF.exe	92
PID 2636 wrote to memory of 1280	2636	RdrCEF.exe	92
PID 2636 wrote to memory of 1280	2636	RdrCEF.exe	92
PID 2636 wrote to memory of 1280	2636	RdrCEF.exe	92
PID 2636 wrote to memory of 1280	2636	RdrCEF.exe	92
PID 2636 wrote to memory of 1280	2636	RdrCEF.exe	92
PID 2636 wrote to memory of 1280	2636	RdrCEF.exe	92
PID 2636 wrote to memory of 1280	2636	RdrCEF.exe	92
PID 2636 wrote to memory of 1280	2636	RdrCEF.exe	92
PID 2636 wrote to memory of 1280	2636	RdrCEF.exe	92
PID 2636 wrote to memory of 1280	2636	RdrCEF.exe	92
PID 2636 wrote to memory of 1280	2636	RdrCEF.exe	92
PID 2636 wrote to memory of 1280	2636	RdrCEF.exe	92
PID 2636 wrote to memory of 1280	2636	RdrCEF.exe	92
PID 2636 wrote to memory of 1280	2636	RdrCEF.exe	92
PID 2636 wrote to memory of 1280	2636	RdrCEF.exe	92
PID 2636 wrote to memory of 1280	2636	RdrCEF.exe	92
PID 2636 wrote to memory of 1280	2636	RdrCEF.exe	92
PID 2636 wrote to memory of 4000	2636	RdrCEF.exe	93
PID 2636 wrote to memory of 4000	2636	RdrCEF.exe	93
PID 2636 wrote to memory of 4000	2636	RdrCEF.exe	93
PID 2636 wrote to memory of 4000	2636	RdrCEF.exe	93
PID 2636 wrote to memory of 4000	2636	RdrCEF.exe	93
PID 2636 wrote to memory of 4000	2636	RdrCEF.exe	93
PID 2636 wrote to memory of 4000	2636	RdrCEF.exe	93
PID 2636 wrote to memory of 4000	2636	RdrCEF.exe	93
PID 2636 wrote to memory of 4000	2636	RdrCEF.exe	93
PID 2636 wrote to memory of 4000	2636	RdrCEF.exe	93
PID 2636 wrote to memory of 4000	2636	RdrCEF.exe	93
PID 2636 wrote to memory of 4000	2636	RdrCEF.exe	93
PID 2636 wrote to memory of 4000	2636	RdrCEF.exe	93
PID 2636 wrote to memory of 4000	2636	RdrCEF.exe	93
PID 2636 wrote to memory of 4000	2636	RdrCEF.exe	93
PID 2636 wrote to memory of 4000	2636	RdrCEF.exe	93
PID 2636 wrote to memory of 4000	2636	RdrCEF.exe	93

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Stub.pyc
1⤵
- Modifies registry class
PID:4972

C:\Windows\system32\OpenWith.exe
C:\Windows\system32\OpenWith.exe -Embedding
1⤵
- Modifies registry class
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4444
- 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\Stub.pyc"
  2⤵
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Modifies Internet Explorer settings
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1524
- - 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
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2636
  - - 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=F57D513F3E119CA058FE7FD726FA0C21 --mojo-platform-channel-handle=1764 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
      4⤵
      System Location Discovery: System Language Discovery
      PID:1280
  - - 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=AD6545AD96C4EF084A5467026CAA2E2C --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=AD6545AD96C4EF084A5467026CAA2E2C --renderer-client-id=2 --mojo-platform-channel-handle=1768 --allow-no-sandbox-job /prefetch:1
      4⤵
      System Location Discovery: System Language Discovery
      PID:4000
  - - 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=8263C07556CB61836826B1133745AD95 --mojo-platform-channel-handle=2332 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
      4⤵
      System Location Discovery: System Language Discovery
      PID:2732
  - - 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=A31CC36433293F6DCF2CB18812CAF286 --mojo-platform-channel-handle=2124 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
      4⤵
      System Location Discovery: System Language Discovery
      PID:548
  - - 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=3542B1EC9D6BE7CB50665A3F9D744E68 --mojo-platform-channel-handle=2408 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
      4⤵
      System Location Discovery: System Language Discovery
      PID:2916

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:2776

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

Windows 7 deprecation

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