Analysis
- max time kernel
148s - max time network
146s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
18/07/2026, 19:50
Behavioral task
behavioral1
Sample
58ad131a12378300fb15d48f6edb028fac3977c3770693e7b8c9cbc5ccb834d5.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
10 signatures
150 seconds
General
- Target 58ad131a12378300fb15d48f6edb028fac3977c3770693e7b8c9cbc5ccb834d5.exe
- Size 832KB
- Sample260718-ykhamsev6v
- SHA256 58ad131a12378300fb15d48f6edb028fac3977c3770693e7b8c9cbc5ccb834d5
- MD5 763a14ac347ddbc3d9c17ec6cfb7e9fa
- SHA1 9a0c758c727cdbf99b924eeb9481fdb0df3627ad
- SHA512 d81dc079f60738c80b951852adee39cf6904c63c04f1f8e25f36396006b0aa5063e56eb1a7c1ca21ead9d2030f1242143f1451a6445e8fdca9c826227dba7125
- SSDEEP 12288:OqXUHkUXe39sOkx2LIan5FAQjU/Lik8CQ3uEuZ9oawhtyybAsLAkQ:OjHPOSOkx2LFscUQPxuZ98Es8kQ
- TLSH T1F1059D21E202C13AD49701B2C6BE0BAFA5687D15432561C7E3D87D6A2FB61D2BE3171F
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 1320 fc731dc0 - Unexpected DNS network traffic destination 4 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
description flow ioc pid Process Destination IP 3 114.114.114.114 2812 58ad131a12378300fb15d48f6edb028fac3977c3770693e7b8c9cbc5ccb834d5.exe Destination IP 5 223.5.5.5 2812 58ad131a12378300fb15d48f6edb028fac3977c3770693e7b8c9cbc5ccb834d5.exe Destination IP 22 114.114.114.114 2812 58ad131a12378300fb15d48f6edb028fac3977c3770693e7b8c9cbc5ccb834d5.exe Destination IP 23 223.5.5.5 2812 58ad131a12378300fb15d48f6edb028fac3977c3770693e7b8c9cbc5ccb834d5.exe - Drops file in System32 directory 15 IoCs
description ioc Process File created C:\Windows\SysWOW64\fc731dc0 58ad131a12378300fb15d48f6edb028fac3977c3770693e7b8c9cbc5ccb834d5.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft fc731dc0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 fc731dc0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 fc731dc0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 fc731dc0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE fc731dc0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies fc731dc0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 fc731dc0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache fc731dc0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content fc731dc0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 fc731dc0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 fc731dc0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 fc731dc0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData fc731dc0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 fc731dc0 -
resource yara_rule behavioral2/memory/2812-0-0x0000000000EF0000-0x0000000000F79000-memory.dmp upx behavioral2/memory/1320-3-0x00000000003A0000-0x0000000000429000-memory.dmp upx behavioral2/files/0x000b00000001136a-2.dat upx behavioral2/memory/2812-18-0x0000000000EF0000-0x0000000000F79000-memory.dmp upx behavioral2/memory/1320-20-0x00000000003A0000-0x0000000000429000-memory.dmp upx behavioral2/memory/1320-24-0x00000000003A0000-0x0000000000429000-memory.dmp upx behavioral2/memory/2812-33-0x0000000000EF0000-0x0000000000F79000-memory.dmp upx behavioral2/memory/1320-34-0x00000000003A0000-0x0000000000429000-memory.dmp upx behavioral2/memory/1320-36-0x00000000003A0000-0x0000000000429000-memory.dmp upx behavioral2/memory/2812-52-0x0000000000EF0000-0x0000000000F79000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\169950 fc731dc0 File opened for modification C:\Windows\302478 58ad131a12378300fb15d48f6edb028fac3977c3770693e7b8c9cbc5ccb834d5.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.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language fc731dc0 Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 58ad131a12378300fb15d48f6edb028fac3977c3770693e7b8c9cbc5ccb834d5.exe - Modifies data under HKEY_USERS 9 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix fc731dc0 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" fc731dc0 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" fc731dc0 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" fc731dc0 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" fc731dc0 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" fc731dc0 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ fc731dc0 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" fc731dc0 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing fc731dc0 - Suspicious behavior: EnumeratesProcesses 22 IoCs
pid Process 1320 fc731dc0 1320 fc731dc0 1320 fc731dc0 1320 fc731dc0 1320 fc731dc0 1320 fc731dc0 1320 fc731dc0 1320 fc731dc0 2812 58ad131a12378300fb15d48f6edb028fac3977c3770693e7b8c9cbc5ccb834d5.exe 2812 58ad131a12378300fb15d48f6edb028fac3977c3770693e7b8c9cbc5ccb834d5.exe 2812 58ad131a12378300fb15d48f6edb028fac3977c3770693e7b8c9cbc5ccb834d5.exe 2812 58ad131a12378300fb15d48f6edb028fac3977c3770693e7b8c9cbc5ccb834d5.exe 2812 58ad131a12378300fb15d48f6edb028fac3977c3770693e7b8c9cbc5ccb834d5.exe 2812 58ad131a12378300fb15d48f6edb028fac3977c3770693e7b8c9cbc5ccb834d5.exe 2812 58ad131a12378300fb15d48f6edb028fac3977c3770693e7b8c9cbc5ccb834d5.exe 2812 58ad131a12378300fb15d48f6edb028fac3977c3770693e7b8c9cbc5ccb834d5.exe 2812 58ad131a12378300fb15d48f6edb028fac3977c3770693e7b8c9cbc5ccb834d5.exe 2812 58ad131a12378300fb15d48f6edb028fac3977c3770693e7b8c9cbc5ccb834d5.exe 2812 58ad131a12378300fb15d48f6edb028fac3977c3770693e7b8c9cbc5ccb834d5.exe 2812 58ad131a12378300fb15d48f6edb028fac3977c3770693e7b8c9cbc5ccb834d5.exe 2812 58ad131a12378300fb15d48f6edb028fac3977c3770693e7b8c9cbc5ccb834d5.exe 2812 58ad131a12378300fb15d48f6edb028fac3977c3770693e7b8c9cbc5ccb834d5.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 2812 58ad131a12378300fb15d48f6edb028fac3977c3770693e7b8c9cbc5ccb834d5.exe Token: SeTcbPrivilege 2812 58ad131a12378300fb15d48f6edb028fac3977c3770693e7b8c9cbc5ccb834d5.exe Token: SeDebugPrivilege 1320 fc731dc0 Token: SeTcbPrivilege 1320 fc731dc0
Processes
-
C:\Users\Admin\AppData\Local\Temp\58ad131a12378300fb15d48f6edb028fac3977c3770693e7b8c9cbc5ccb834d5.exe"C:\Users\Admin\AppData\Local\Temp\58ad131a12378300fb15d48f6edb028fac3977c3770693e7b8c9cbc5ccb834d5.exe"1⤵
- Unexpected DNS network traffic destination
- Drops file in System32 directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2812
-
C:\Windows\Syswow64\fc731dc0C:\Windows\Syswow64\fc731dc01⤵
- Executes dropped EXE
- Drops file in System32 directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1320
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\fc731dc0
- Size 832KB
- SHA256 665e2055333769f714ab3c3d7fe77d01633dfe0783b7e64aa55949e32c480439
- MD5 1ff2cf7548c2ea8daff9bcfdbf0be5ce
- SHA1 b9bf99504f5ae9049ff10f391628e86f8f3d90e5
- SHA512 6c0c65fb4c4051110c92ac1783e3a72cd16c4165fa0a08fca4c0e2c4a764cafc41f2ed214a433e000c52b7df6d3eb3c556f5018680e405b947117e7a6f59018c
- SSDEEP 12288:dqXUHkUXe39sOkx2LIan5FAQjU/Lik8CQ3uEuZ9oawhtyybAsLAkQ:djHPOSOkx2LFscUQPxuZ98Es8kQ
- TLSH T111059D21E202C13AD49701B2C6BE0BAFA5687D15432561C7E3D87D6A2FB61D2BE3171F
- MD5 SHA1 SHA512 SSDEEP TLSH