Analysis
- max time kernel
149s - max time network
149s - platform
windows10-2004_x64 - resource
win10v2004-20260130-en - resource tags
arch:x64arch:x86image:win10v2004-20260130-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
21/04/2026, 01:03
Behavioral task
behavioral1
Sample
d9987c6c3c2125b933f333d52b6e418260429256c7bcc2032dcb41fc5d8c45a1.exe
Resource
win10v2004-20260130-en
windows10-2004-x64
10 signatures
150 seconds
General
- Target d9987c6c3c2125b933f333d52b6e418260429256c7bcc2032dcb41fc5d8c45a1.exe
- Size 640KB
- Sample260421-beew1aav91
- SHA256 d9987c6c3c2125b933f333d52b6e418260429256c7bcc2032dcb41fc5d8c45a1
- MD5 cf1c89b0e62fc87ce0a135eb0536e3f5
- SHA1 1b427761a96c2416baf2bfe3114e98c8523ed8c5
- SHA512 cb4a5cabe4f52271417f6d1eca8e17056baf12edf1f44148172587317a4a0b6eb31989c3a0aae933920a8277b928d94a325a3ae034fb6eaaae827a7eeaf1e8fd
- SSDEEP 6144:UcTgav1cdCTuoPbgwmOLJvKRwLSFXdFwirGcEOkCybEaQRuy8KU5Rc:USvO2x9mONvKRwLSFtsOkxHya5+
- TLSH T1E4D45B35A6808036C0B74631C6F64BAAF9B5BC25631195CFA384376A1F737D2BA3570E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
7/10
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 4552 ecfd5f6a - 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 4196 d9987c6c3c2125b933f333d52b6e418260429256c7bcc2032dcb41fc5d8c45a1.exe Destination IP 4 223.5.5.5 4196 d9987c6c3c2125b933f333d52b6e418260429256c7bcc2032dcb41fc5d8c45a1.exe Destination IP 32 114.114.114.114 4196 d9987c6c3c2125b933f333d52b6e418260429256c7bcc2032dcb41fc5d8c45a1.exe Destination IP 33 223.5.5.5 4196 d9987c6c3c2125b933f333d52b6e418260429256c7bcc2032dcb41fc5d8c45a1.exe - Drops file in System32 directory 15 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 ecfd5f6a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache ecfd5f6a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content ecfd5f6a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 ecfd5f6a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 ecfd5f6a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft ecfd5f6a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData ecfd5f6a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 ecfd5f6a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 ecfd5f6a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE ecfd5f6a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\AAD646CB44373074ADE741C38400E7E1 ecfd5f6a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\AAD646CB44373074ADE741C38400E7E1 ecfd5f6a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 ecfd5f6a File created C:\Windows\SysWOW64\ecfd5f6a d9987c6c3c2125b933f333d52b6e418260429256c7bcc2032dcb41fc5d8c45a1.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies ecfd5f6a -
resource yara_rule behavioral1/memory/4196-0-0x0000000000100000-0x000000000018C000-memory.dmp upx behavioral1/files/0x000900000001dc10-3.dat upx behavioral1/memory/4552-4-0x0000000000990000-0x0000000000A1C000-memory.dmp upx behavioral1/memory/4196-10-0x0000000000100000-0x000000000018C000-memory.dmp upx behavioral1/memory/4552-11-0x0000000000990000-0x0000000000A1C000-memory.dmp upx behavioral1/memory/4552-29-0x0000000000990000-0x0000000000A1C000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\4dee90 ecfd5f6a File opened for modification C:\Windows\47d648 d9987c6c3c2125b933f333d52b6e418260429256c7bcc2032dcb41fc5d8c45a1.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 d9987c6c3c2125b933f333d52b6e418260429256c7bcc2032dcb41fc5d8c45a1.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language ecfd5f6a - 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 ecfd5f6a Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" ecfd5f6a Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" ecfd5f6a Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" ecfd5f6a Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing ecfd5f6a Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ ecfd5f6a Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" ecfd5f6a Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" ecfd5f6a Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" ecfd5f6a - Modifies system certificate store 2 TTPs 2 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\1F24C630CDA418EF2069FFAD4FDD5F463A1B69AA ecfd5f6a Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\1F24C630CDA418EF2069FFAD4FDD5F463A1B69AA\Blob = 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 ecfd5f6a - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 4552 ecfd5f6a 4552 ecfd5f6a 4552 ecfd5f6a 4552 ecfd5f6a 4552 ecfd5f6a 4552 ecfd5f6a 4552 ecfd5f6a 4552 ecfd5f6a 4196 d9987c6c3c2125b933f333d52b6e418260429256c7bcc2032dcb41fc5d8c45a1.exe 4196 d9987c6c3c2125b933f333d52b6e418260429256c7bcc2032dcb41fc5d8c45a1.exe 4196 d9987c6c3c2125b933f333d52b6e418260429256c7bcc2032dcb41fc5d8c45a1.exe 4196 d9987c6c3c2125b933f333d52b6e418260429256c7bcc2032dcb41fc5d8c45a1.exe 4196 d9987c6c3c2125b933f333d52b6e418260429256c7bcc2032dcb41fc5d8c45a1.exe 4196 d9987c6c3c2125b933f333d52b6e418260429256c7bcc2032dcb41fc5d8c45a1.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 4196 d9987c6c3c2125b933f333d52b6e418260429256c7bcc2032dcb41fc5d8c45a1.exe Token: SeTcbPrivilege 4196 d9987c6c3c2125b933f333d52b6e418260429256c7bcc2032dcb41fc5d8c45a1.exe Token: SeDebugPrivilege 4552 ecfd5f6a Token: SeTcbPrivilege 4552 ecfd5f6a
Processes
-
C:\Users\Admin\AppData\Local\Temp\d9987c6c3c2125b933f333d52b6e418260429256c7bcc2032dcb41fc5d8c45a1.exe"C:\Users\Admin\AppData\Local\Temp\d9987c6c3c2125b933f333d52b6e418260429256c7bcc2032dcb41fc5d8c45a1.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:4196
-
C:\Windows\Syswow64\ecfd5f6aC:\Windows\Syswow64\ecfd5f6a1⤵
- Executes dropped EXE
- Drops file in System32 directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
- Modifies system certificate store
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4552
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\ecfd5f6a
- Size 640KB
- SHA256 0b4036152a633bfb9e9d4bc69747e5bd43b7237acb9d1b6451fef396a6d939a0
- MD5 05aa25f3724fdb476e3758a896d6a589
- SHA1 83681524f889943682635a7d0c230f6464b9f28a
- SHA512 a2dae9b035b2b5c30f9029ddb66fb57a2ae2cf08b257dee911a7f1f6526d193ae08090fe6b54a69834faac112438d79126ac54efd1da7c4640e8ee00bf7f5793
- SSDEEP 6144:kcTgav1cdCTuoPbgwmOLJvKRwLSFXdFwirGcEOkCybEaQRuy8KU5Rc:kSvO2x9mONvKRwLSFtsOkxHya5+
- TLSH T17DD45B35A6808036C0B74631C6F64BAAF9B5BC25631195CFA384376A1F737D2BA3570E
- MD5 SHA1 SHA512 SSDEEP TLSH