Analysis
- max time kernel
149s - max time network
148s - platform
windows10-2004_x64 - resource
win10v2004-20260911-en - resource tags
arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
29/09/2026, 20:38
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
f4ed40da73cf5a461135e3eb39622c6a4107e2ea8e5976a63aa583fec7d2754a.exe
Resource
win10v2004-20260911-en
windows10-2004-x64
9 signatures
150 seconds
Behavioral task
behavioral2
Sample
f4ed40da73cf5a461135e3eb39622c6a4107e2ea8e5976a63aa583fec7d2754a.exe
Resource
win11ltsc2024-20260911-en
windows11-ltsc_2024-x64
9 signatures
150 seconds
General
- Target f4ed40da73cf5a461135e3eb39622c6a4107e2ea8e5976a63aa583fec7d2754a.exe
- Size 511KB
- Sample260929-zer4bssydx
- SHA256 f4ed40da73cf5a461135e3eb39622c6a4107e2ea8e5976a63aa583fec7d2754a
- MD5 aa08b9c83f9a53966842234fbdae2399
- SHA1 2cb7986981480a2b7478a0a5a68c03591a2346ea
- SHA512 87ecd3d9e75f30f94b71c06127af87884212e7efa178c6d070bdce9bbb4b6a3e6d31c7be37a8ae8de67a4ff7f898830f701e9df98f1b97ba6a84aadd4a7a096f
- SSDEEP 6144:YcTgav1cdCTuoPbgwmOLJvKRILSFvdFDcEOkCybEaQRXr9HNdvOax5Rv0:YSvO2x9mONvKRILSFnOkx2LIax5F0
- TLSH T101B45B26F6908036C4B34575C5F64BAAFAB4BC21631156CBA3943A6A1F737D2BD3130E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
7/10
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 4356 d9c02c84 - Unexpected DNS network traffic destination 18 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
description flow ioc pid Process Destination IP 238 223.5.5.5 1412 f4ed40da73cf5a461135e3eb39622c6a4107e2ea8e5976a63aa583fec7d2754a.exe Destination IP 302 223.5.5.5 1412 f4ed40da73cf5a461135e3eb39622c6a4107e2ea8e5976a63aa583fec7d2754a.exe Destination IP 369 114.114.114.114 1412 f4ed40da73cf5a461135e3eb39622c6a4107e2ea8e5976a63aa583fec7d2754a.exe Destination IP 123 223.5.5.5 1412 f4ed40da73cf5a461135e3eb39622c6a4107e2ea8e5976a63aa583fec7d2754a.exe Destination IP 370 223.5.5.5 1412 f4ed40da73cf5a461135e3eb39622c6a4107e2ea8e5976a63aa583fec7d2754a.exe Destination IP 400 114.114.114.114 1412 f4ed40da73cf5a461135e3eb39622c6a4107e2ea8e5976a63aa583fec7d2754a.exe Destination IP 401 223.5.5.5 1412 f4ed40da73cf5a461135e3eb39622c6a4107e2ea8e5976a63aa583fec7d2754a.exe Destination IP 461 114.114.114.114 1412 f4ed40da73cf5a461135e3eb39622c6a4107e2ea8e5976a63aa583fec7d2754a.exe Destination IP 3 114.114.114.114 1412 f4ed40da73cf5a461135e3eb39622c6a4107e2ea8e5976a63aa583fec7d2754a.exe Destination IP 122 114.114.114.114 4356 d9c02c84 Destination IP 236 114.114.114.114 1412 f4ed40da73cf5a461135e3eb39622c6a4107e2ea8e5976a63aa583fec7d2754a.exe Destination IP 301 114.114.114.114 1412 f4ed40da73cf5a461135e3eb39622c6a4107e2ea8e5976a63aa583fec7d2754a.exe Destination IP 57 114.114.114.114 1412 f4ed40da73cf5a461135e3eb39622c6a4107e2ea8e5976a63aa583fec7d2754a.exe Destination IP 58 223.5.5.5 1412 f4ed40da73cf5a461135e3eb39622c6a4107e2ea8e5976a63aa583fec7d2754a.exe Destination IP 152 114.114.114.114 1412 f4ed40da73cf5a461135e3eb39622c6a4107e2ea8e5976a63aa583fec7d2754a.exe Destination IP 154 223.5.5.5 1412 f4ed40da73cf5a461135e3eb39622c6a4107e2ea8e5976a63aa583fec7d2754a.exe Destination IP 462 223.5.5.5 1412 f4ed40da73cf5a461135e3eb39622c6a4107e2ea8e5976a63aa583fec7d2754a.exe Destination IP 4 223.5.5.5 1412 f4ed40da73cf5a461135e3eb39622c6a4107e2ea8e5976a63aa583fec7d2754a.exe - Drops file in System32 directory 13 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 d9c02c84 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 d9c02c84 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 d9c02c84 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE d9c02c84 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 d9c02c84 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache d9c02c84 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content d9c02c84 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 d9c02c84 File created C:\Windows\SysWOW64\d9c02c84 f4ed40da73cf5a461135e3eb39622c6a4107e2ea8e5976a63aa583fec7d2754a.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 d9c02c84 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies d9c02c84 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft d9c02c84 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData d9c02c84 - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\4a9388 d9c02c84 File opened for modification C:\Windows\182c88 f4ed40da73cf5a461135e3eb39622c6a4107e2ea8e5976a63aa583fec7d2754a.exe - Reads the TCP/IP host and domain name from the registry 1 TTPs 4 IoCs
The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.
description ioc Process Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname f4ed40da73cf5a461135e3eb39622c6a4107e2ea8e5976a63aa583fec7d2754a.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain f4ed40da73cf5a461135e3eb39622c6a4107e2ea8e5976a63aa583fec7d2754a.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname d9c02c84 Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain d9c02c84 - 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 f4ed40da73cf5a461135e3eb39622c6a4107e2ea8e5976a63aa583fec7d2754a.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language d9c02c84 - 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 d9c02c84 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ d9c02c84 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" d9c02c84 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" d9c02c84 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" d9c02c84 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing d9c02c84 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" d9c02c84 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" d9c02c84 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" d9c02c84 - Suspicious behavior: EnumeratesProcesses 18 IoCs
pid Process 4356 d9c02c84 4356 d9c02c84 4356 d9c02c84 4356 d9c02c84 4356 d9c02c84 4356 d9c02c84 4356 d9c02c84 4356 d9c02c84 4356 d9c02c84 4356 d9c02c84 4356 d9c02c84 4356 d9c02c84 1412 f4ed40da73cf5a461135e3eb39622c6a4107e2ea8e5976a63aa583fec7d2754a.exe 1412 f4ed40da73cf5a461135e3eb39622c6a4107e2ea8e5976a63aa583fec7d2754a.exe 1412 f4ed40da73cf5a461135e3eb39622c6a4107e2ea8e5976a63aa583fec7d2754a.exe 1412 f4ed40da73cf5a461135e3eb39622c6a4107e2ea8e5976a63aa583fec7d2754a.exe 1412 f4ed40da73cf5a461135e3eb39622c6a4107e2ea8e5976a63aa583fec7d2754a.exe 1412 f4ed40da73cf5a461135e3eb39622c6a4107e2ea8e5976a63aa583fec7d2754a.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 1412 f4ed40da73cf5a461135e3eb39622c6a4107e2ea8e5976a63aa583fec7d2754a.exe Token: SeTcbPrivilege 1412 f4ed40da73cf5a461135e3eb39622c6a4107e2ea8e5976a63aa583fec7d2754a.exe Token: SeDebugPrivilege 4356 d9c02c84 Token: SeTcbPrivilege 4356 d9c02c84
Processes
-
C:\Users\Admin\AppData\Local\Temp\f4ed40da73cf5a461135e3eb39622c6a4107e2ea8e5976a63aa583fec7d2754a.exe"C:\Users\Admin\AppData\Local\Temp\f4ed40da73cf5a461135e3eb39622c6a4107e2ea8e5976a63aa583fec7d2754a.exe"1⤵
- Unexpected DNS network traffic destination
- Drops file in System32 directory
- Drops file in Windows directory
- Reads the TCP/IP host and domain name from the registry
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1412
-
C:\Windows\Syswow64\d9c02c84C:\Windows\Syswow64\d9c02c841⤵
- Executes dropped EXE
- Unexpected DNS network traffic destination
- Drops file in System32 directory
- Drops file in Windows directory
- Reads the TCP/IP host and domain name from the registry
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4356
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\4a9388
- Size 506B
- SHA256 0a0749163ed2d7c3c9320b8d7deadceed6f6718721c8bd31595339ef57d8ced2
- MD5 0bacb6c4819fbf05389a86ef0a890614
- SHA1 3a5ae40510f7cc582a386c14beba83033e64c868
- SHA512 ef4cc66c5a4dbeea07e77d34ac0653dbd10749bbd7977ba4b1e2b84127fdba286f1b3f8b0f9f2b89cdca15fb76618dc63f362415fb1ad99b13a2c4f05313f7f0
- TLSH T1F1F09EBB78756AF60BDD24F2D9736C5D673D503A802E333A5EE1B45C096220C9906C8C
- MD5 SHA1 SHA512 TLSH
- Path C:\Windows\SysWOW64\d9c02c84
- Size 511KB
- SHA256 e16af36de882a6ba5b75db64a8634f3bbce6cd20fbcf00c4185d2fb124095898
- MD5 a2015b813725e7689d4974a5673245f7
- SHA1 6b90748642477f6a373544b590ea684c442fe405
- SHA512 c9f589dd3045aacc717d05c84aa722626aeadea4d043fa69a9b3e34d4d6d1b45c2ae59eb0c633af9e938363fd6303d3e2fd5f97cf8fc27d2b934dd2ab6360fae
- SSDEEP 6144:kcTgav1cdCTuoPbgwmOLJvKRILSFvdFDcEOkCybEaQRXr9HNdvOax5Rv0:kSvO2x9mONvKRILSFnOkx2LIax5F0
- TLSH T1CBB45C26F6908036C4B34575C5F64BAAFAB4BC21631156CBA3943A6A1F737D2BD3130E
- MD5 SHA1 SHA512 SSDEEP TLSH