Analysis
- max time kernel
149s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
28/07/2026, 08:24
Behavioral task
behavioral1
Sample
99cc4b67c4d335238f17cb6668f1d24f8bf89575101522a5cb1a88731ef7bf43.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target 99cc4b67c4d335238f17cb6668f1d24f8bf89575101522a5cb1a88731ef7bf43.exe
- Size 1.4MB
- Sample260728-ka2dwagb95
- SHA256 99cc4b67c4d335238f17cb6668f1d24f8bf89575101522a5cb1a88731ef7bf43
- MD5 af6f9e323469785fd16b1a7635fcf42d
- SHA1 9b04f289bb387d2bceed71c11eb3ff2bc2b10043
- SHA512 7ad67221d84e56e3aa15be2302177ba66924fc8fc6038f5efc02b59aac6ceee2f4241ffcb1b2b1359e4602d163837a9f6adc9f888bee0c6bd82093f51c411c61
- SSDEEP 24576:sjHPOSOkx2LFscUQPxuZ98Es8k3OH3C0rQ6+8pKJJFo3Q+qdCOKIbA0I:sTGkQy5QZuTtS0rQMYOQ+q8CE0I
- TLSH T13065AE21B341C036D59A01758ABE4BAE957CBD314B2551C7B3C87E7E6FB12D2AA3130B
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 4776 13ec7f20 - 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 53 114.114.114.114 3744 99cc4b67c4d335238f17cb6668f1d24f8bf89575101522a5cb1a88731ef7bf43.exe Destination IP 54 223.5.5.5 3744 99cc4b67c4d335238f17cb6668f1d24f8bf89575101522a5cb1a88731ef7bf43.exe Destination IP 3 114.114.114.114 3744 99cc4b67c4d335238f17cb6668f1d24f8bf89575101522a5cb1a88731ef7bf43.exe Destination IP 6 223.5.5.5 3744 99cc4b67c4d335238f17cb6668f1d24f8bf89575101522a5cb1a88731ef7bf43.exe - Drops file in System32 directory 13 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 13ec7f20 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 13ec7f20 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 13ec7f20 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 13ec7f20 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 13ec7f20 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 13ec7f20 File created C:\Windows\SysWOW64\13ec7f20 99cc4b67c4d335238f17cb6668f1d24f8bf89575101522a5cb1a88731ef7bf43.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 13ec7f20 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 13ec7f20 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 13ec7f20 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 13ec7f20 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 13ec7f20 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 13ec7f20 -
resource yara_rule behavioral1/memory/3744-0-0x0000000000D80000-0x0000000000E09000-memory.dmp upx behavioral1/files/0x00120000000243d2-2.dat upx behavioral1/memory/4776-3-0x0000000000660000-0x00000000006E9000-memory.dmp upx behavioral1/memory/3744-13-0x0000000000D80000-0x0000000000E09000-memory.dmp upx behavioral1/memory/4776-15-0x0000000000660000-0x00000000006E9000-memory.dmp upx behavioral1/memory/3744-28-0x0000000000D80000-0x0000000000E09000-memory.dmp upx behavioral1/memory/4776-29-0x0000000000660000-0x00000000006E9000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\51c450 13ec7f20 File opened for modification C:\Windows\401940 99cc4b67c4d335238f17cb6668f1d24f8bf89575101522a5cb1a88731ef7bf43.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 99cc4b67c4d335238f17cb6668f1d24f8bf89575101522a5cb1a88731ef7bf43.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 13ec7f20 - 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\Cookies\CachePrefix = "Cookie:" 13ec7f20 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 13ec7f20 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 13ec7f20 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 13ec7f20 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 13ec7f20 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 13ec7f20 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 13ec7f20 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 13ec7f20 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix 13ec7f20 - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 4776 13ec7f20 4776 13ec7f20 4776 13ec7f20 4776 13ec7f20 4776 13ec7f20 4776 13ec7f20 4776 13ec7f20 4776 13ec7f20 3744 99cc4b67c4d335238f17cb6668f1d24f8bf89575101522a5cb1a88731ef7bf43.exe 3744 99cc4b67c4d335238f17cb6668f1d24f8bf89575101522a5cb1a88731ef7bf43.exe 3744 99cc4b67c4d335238f17cb6668f1d24f8bf89575101522a5cb1a88731ef7bf43.exe 3744 99cc4b67c4d335238f17cb6668f1d24f8bf89575101522a5cb1a88731ef7bf43.exe 3744 99cc4b67c4d335238f17cb6668f1d24f8bf89575101522a5cb1a88731ef7bf43.exe 3744 99cc4b67c4d335238f17cb6668f1d24f8bf89575101522a5cb1a88731ef7bf43.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 3744 99cc4b67c4d335238f17cb6668f1d24f8bf89575101522a5cb1a88731ef7bf43.exe Token: SeTcbPrivilege 3744 99cc4b67c4d335238f17cb6668f1d24f8bf89575101522a5cb1a88731ef7bf43.exe Token: SeDebugPrivilege 4776 13ec7f20 Token: SeTcbPrivilege 4776 13ec7f20
Processes
-
C:\Users\Admin\AppData\Local\Temp\99cc4b67c4d335238f17cb6668f1d24f8bf89575101522a5cb1a88731ef7bf43.exe"C:\Users\Admin\AppData\Local\Temp\99cc4b67c4d335238f17cb6668f1d24f8bf89575101522a5cb1a88731ef7bf43.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:3744
-
C:\Windows\Syswow64\13ec7f20C:\Windows\Syswow64\13ec7f201⤵
- 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:4776
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\13ec7f20
- Size 1.4MB
- SHA256 dbd6bb66679b5b953c108db0c9505763c3760bcf0d7c827cab544ad7418ea270
- MD5 6582268c0eae657276944724197f3582
- SHA1 62e6b8b01c04628de9f819e38d211e9d9e5f0817
- SHA512 58bc395d09c550cb400251d1e281b0fa2aa3a6cd7e10ecb77fce40fdc5a620d8706f5a7f1eb2fc5156eb091d536559823c10a2d8479c52214ed023a37161f5f5
- SSDEEP 24576:ejHPOSOkx2LFscUQPxuZ98Es8k3OH3C0rQ6+8pKJJFo3Q+qdCOKIbA0I:eTGkQy5QZuTtS0rQMYOQ+q8CE0I
- TLSH T1B165AE21B341C036D59A01758ABE4BAE957CBD314B2551C7B3C87E7E6FB12D2AA3130B
- MD5 SHA1 SHA512 SSDEEP TLSH