ac96016f1511ae3eb5ec9de04551146fe351b7f97858dcd67163912e2302f5d6

Analysis

max time kernel
598s
max time network
489s
platform
windows10-ltsc_2021_x64
resource
win10ltsc2021-20260911-en
resource tags

arch:x64arch:x86image:win10ltsc2021-20260911-enlocale:en-usos:windows10-ltsc_2021-x64systemwindows
submitted
10/11/2026, 13:59

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General

Target
IdleOS/_Redist/vcredist_2015-2019_x86.exe
Size 13.7MB
Sample261110-ramdaaax2l
SHA256 ac96016f1511ae3eb5ec9de04551146fe351b7f97858dcd67163912e2302f5d6
MD5 de34b1c517e0463602624bbc8294c08d
SHA1 5ce7923ffea712468c05e7ac376dd9c29ea9f6be
SHA512 114bca1ecd17e419ad617a1a4341e607250bcb02626cdc0670eb60be734bbad1f3c84e38f077af9a32a6b1607b8ce6e4b3641c0faefaa779c0fec0d3ac022dac
SSDEEP 393216:/d/FlptVYmfr7yBG/4JU4TRjtjUMy4i6kgsY7i:/1PpttD7yBG/QHTJtYMyke9
TLSH
T134E633326554402AEBF20573AAA4F5342E7DE62D230449AEE3DCEC0D2FB919357F7612
MD5 SHA1 SHA512 SSDEEP TLSH

Score

4^/10

discovery

Malware Config

Signatures

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Executes dropped EXE 1 IoCs

pid	Process
3440	vcredist_2015-2019_x86.exe

Loads dropped DLL 1 IoCs

pid	Process
3440	vcredist_2015-2019_x86.exe

System Location Discovery: System Language Discovery 1 TTPs 2 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	vcredist_2015-2019_x86.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vcredist_2015-2019_x86.exe

Suspicious use of WriteProcessMemory 1 IoCs

description	pid	Process	procid_target
PID 2164 wrote to memory of 3440	2164	vcredist_2015-2019_x86.exe	84

C:\Users\Admin\AppData\Local\Temp\IdleOS\_Redist\vcredist_2015-2019_x86.exe
"C:\Users\Admin\AppData\Local\Temp\IdleOS\_Redist\vcredist_2015-2019_x86.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2164
- C:\Windows\Temp\{2A078B91-FD40-4187-BE7C-C40471A0E9CD}\.cr\vcredist_2015-2019_x86.exe
  "C:\Windows\Temp\{2A078B91-FD40-4187-BE7C-C40471A0E9CD}\.cr\vcredist_2015-2019_x86.exe" -burn.clean.room="C:\Users\Admin\AppData\Local\Temp\IdleOS\_Redist\vcredist_2015-2019_x86.exe" -burn.filehandle.attached=540 -burn.filehandle.self=548
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:3440

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

vcredist_2015-2019_x86.exe

Path C:\Windows\Temp\{2A078B91-FD40-4187-BE7C-C40471A0E9CD}\.cr\vcredist_2015-2019_x86.exe
Size 632KB
SHA256 0009d3f27837c3af3f6fff7973faf07afaa4b53119846f55b6f2a79f1759c757
MD5 2f9d2b6ce54f9095695b53d1aa217c7b
SHA1 3f54934c240f1955301811d2c399728a3e6d1272
SHA512 692857f960f26039c7b0af6329e65a71e8588ff71eaac6b956bd6e437994a8d5a470c7e75dd776e0772e473967b64d5ea0e1d8396546691316daf4d6b8ccc237
SSDEEP 12288:snMwHskY7gjcjhVIEhqgM7bWvcsi6aVhPIyP3WRCzJ9ztLz5/YTDd:6MysZgjS1hqgSC/izxf+czJZhz5Qnd
TLSH
T19BD49E3295614032E6F206B3B958E2307E3CE218271489AEE3D8ED5D7EA849167F7357
MD5 SHA1 SHA512 SSDEEP TLSH

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logo.png

Path C:\Windows\Temp\{9F815B6C-87A3-4695-AB54-6E8B89B8D072}\.ba\logo.png
Size 1KB
SHA256 335a256d4779ec5dcf283d007fb56fd8211bbcaf47dcd70fe60ded6a112744ef
MD5 d6bd210f227442b3362493d046cea233
SHA1 ff286ac8370fc655aea0ef35e9cf0bfcb6d698de
SHA512 464aaab9e08de610ad34b97d4076e92dc04c2cdc6669f60bfc50f0f9ce5d71c31b8943bd84cee1a04fb9ab5bbed3442bd41d9cb21a0dd170ea97c463e1ce2b5b
TLSH
T1CF312CF34748B7A7D30581351471819AD242FFD8F9CE291E35CD5307664018115C75CF
MD5 SHA1 SHA512 TLSH

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wixstdba.dll

Path C:\Windows\Temp\{9F815B6C-87A3-4695-AB54-6E8B89B8D072}\.ba\wixstdba.dll
Size 191KB
SHA256 a4efbdb2ce55788ffe92a244cb775efd475526ef5b61ad78de2bcdfaddac7041
MD5 eab9caf4277829abdf6223ec1efa0edd
SHA1 74862ecf349a9bedd32699f2a7a4e00b4727543d
SHA512 45b15ade68e0a90ea7300aeb6dca9bc9e347a63dba5ce72a635957564d1bdf0b1584a5e34191916498850fc7b3b7ecfbcbfcb246b39dbf59d47f66bc825c6fd2
SSDEEP 3072:OXoiFK6b0k77I+QfaIl191rSJHvlalB+8BHkY6v53EfcUzN0m6I+WxBlnKzeZuqt:OXoQNb++gDrSJdr8BHkPh3wIgnK/IU1a
TLSH
T103149E11B5D0907AE7FB1A385938B5216D7FBA201B60C99E17589D6F2DF02C0AF35B23
MD5 SHA1 SHA512 SSDEEP TLSH

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads