Analysis
- max time kernel
149s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20260130-en - resource tags
arch:x64arch:x86image:win10v2004-20260130-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
29/04/2026, 19:52
Behavioral task
behavioral1
Sample
1e311631da0b1dd85e0bb7129fe8c6be94b474fa3ba17a39fd241d5757d7cb7b.exe
Resource
win10v2004-20260130-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target 1e311631da0b1dd85e0bb7129fe8c6be94b474fa3ba17a39fd241d5757d7cb7b.exe
- Size 640KB
- Sample260429-ylek5sfx71
- SHA256 1e311631da0b1dd85e0bb7129fe8c6be94b474fa3ba17a39fd241d5757d7cb7b
- MD5 8beb44a7ea08ffb6aea4282167adef06
- SHA1 cb6b47cd1f4e4fb9b0c9e3be06412508ebcd6335
- SHA512 3bad784be49e76acfde8dd4e80b53b0596f13c3dab9731571498ac96435f3a7adf46b8e5f26d4d089984b60cc43d2c12e8427021c3ac7c06b95347c07afdf02f
- SSDEEP 6144:tcTgav1cdCTuoPbgwmOLJvKRwLSFXdFwirGcEOkCybEaQRuy8KU5Rc:tSvO2x9mONvKRwLSFtsOkxHya5+
- TLSH T1E4D45B35A6808036C0B74631C6F64BAAF9B5BC25631195CFA384376A1F737D2BA3570E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 4100 9f98ef33 - 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 5 114.114.114.114 3568 1e311631da0b1dd85e0bb7129fe8c6be94b474fa3ba17a39fd241d5757d7cb7b.exe Destination IP 6 223.5.5.5 3568 1e311631da0b1dd85e0bb7129fe8c6be94b474fa3ba17a39fd241d5757d7cb7b.exe Destination IP 31 114.114.114.114 3568 1e311631da0b1dd85e0bb7129fe8c6be94b474fa3ba17a39fd241d5757d7cb7b.exe Destination IP 32 223.5.5.5 3568 1e311631da0b1dd85e0bb7129fe8c6be94b474fa3ba17a39fd241d5757d7cb7b.exe - Drops file in System32 directory 15 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\3EC845F33427F1C99AF855BE8930371C 9f98ef33 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 9f98ef33 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 9f98ef33 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\3EC845F33427F1C99AF855BE8930371C 9f98ef33 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 9f98ef33 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 9f98ef33 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 9f98ef33 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 9f98ef33 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 9f98ef33 File created C:\Windows\SysWOW64\9f98ef33 1e311631da0b1dd85e0bb7129fe8c6be94b474fa3ba17a39fd241d5757d7cb7b.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 9f98ef33 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 9f98ef33 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 9f98ef33 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 9f98ef33 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 9f98ef33 -
resource yara_rule behavioral1/memory/3568-0-0x00000000000D0000-0x000000000015C000-memory.dmp upx behavioral1/files/0x000a0000000241a0-2.dat upx behavioral1/memory/4100-3-0x0000000000570000-0x00000000005FC000-memory.dmp upx behavioral1/memory/3568-12-0x00000000000D0000-0x000000000015C000-memory.dmp upx behavioral1/memory/4100-14-0x0000000000570000-0x00000000005FC000-memory.dmp upx behavioral1/memory/4100-37-0x0000000000570000-0x00000000005FC000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\463188 9f98ef33 File opened for modification C:\Windows\3d15e0 1e311631da0b1dd85e0bb7129fe8c6be94b474fa3ba17a39fd241d5757d7cb7b.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 1e311631da0b1dd85e0bb7129fe8c6be94b474fa3ba17a39fd241d5757d7cb7b.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 9f98ef33 - 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 9f98ef33 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" 9f98ef33 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 9f98ef33 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 9f98ef33 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 9f98ef33 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 9f98ef33 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 9f98ef33 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 9f98ef33 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 9f98ef33 - Suspicious behavior: EnumeratesProcesses 18 IoCs
pid Process 4100 9f98ef33 4100 9f98ef33 4100 9f98ef33 4100 9f98ef33 4100 9f98ef33 4100 9f98ef33 4100 9f98ef33 4100 9f98ef33 4100 9f98ef33 4100 9f98ef33 4100 9f98ef33 4100 9f98ef33 3568 1e311631da0b1dd85e0bb7129fe8c6be94b474fa3ba17a39fd241d5757d7cb7b.exe 3568 1e311631da0b1dd85e0bb7129fe8c6be94b474fa3ba17a39fd241d5757d7cb7b.exe 3568 1e311631da0b1dd85e0bb7129fe8c6be94b474fa3ba17a39fd241d5757d7cb7b.exe 3568 1e311631da0b1dd85e0bb7129fe8c6be94b474fa3ba17a39fd241d5757d7cb7b.exe 3568 1e311631da0b1dd85e0bb7129fe8c6be94b474fa3ba17a39fd241d5757d7cb7b.exe 3568 1e311631da0b1dd85e0bb7129fe8c6be94b474fa3ba17a39fd241d5757d7cb7b.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 3568 1e311631da0b1dd85e0bb7129fe8c6be94b474fa3ba17a39fd241d5757d7cb7b.exe Token: SeTcbPrivilege 3568 1e311631da0b1dd85e0bb7129fe8c6be94b474fa3ba17a39fd241d5757d7cb7b.exe Token: SeDebugPrivilege 4100 9f98ef33 Token: SeTcbPrivilege 4100 9f98ef33
Processes
-
C:\Users\Admin\AppData\Local\Temp\1e311631da0b1dd85e0bb7129fe8c6be94b474fa3ba17a39fd241d5757d7cb7b.exe"C:\Users\Admin\AppData\Local\Temp\1e311631da0b1dd85e0bb7129fe8c6be94b474fa3ba17a39fd241d5757d7cb7b.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:3568
-
C:\Windows\Syswow64\9f98ef33C:\Windows\Syswow64\9f98ef331⤵
- 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:4100
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\9f98ef33
- Size 640KB
- SHA256 1097b922bbed3fc7f36336cab1f071d732b0f330621d1b54fb05f39aefa27b5d
- MD5 e0ba0076f21f4004a280bb2563989bf2
- SHA1 320cf3404e20a06e7231be001428e16942f6d4af
- SHA512 c9b13381a9825963fcda579f31d514195c99e3f39d6f41d36925fb35c2ff67dc8a387a09a1a703d9bc8d43d034d031c165adbb2c024c72b62f1260bb6145a93c
- SSDEEP 6144:pcTgav1cdCTuoPbgwmOLJvKRwLSFXdFwirGcEOkCybEaQRuy8KU5Rc:pSvO2x9mONvKRwLSFtsOkxHya5+
- TLSH T11AD45B35A6808036C0B74631C6F64BAAF9B5BC25631195CFA384376A1F737D2BA3570E
- MD5 SHA1 SHA512 SSDEEP TLSH