Analysis
- max time kernel
149s - max time network
149s - platform
windows10-2004_x64 - resource
win10v2004-20260911-en - resource tags
arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
11/10/2026, 14:17
Behavioral task
behavioral1
Sample
fdb1bdc614dc0f3674db2d9754e180b09cabfb187e3cb9b00e5780f66a74ac5b.exe
Resource
win10v2004-20260911-en
windows10-2004-x64
10 signatures
150 seconds
General
- Target fdb1bdc614dc0f3674db2d9754e180b09cabfb187e3cb9b00e5780f66a74ac5b.exe
- Size 638KB
- Sample261011-rl2mcasycv
- SHA256 fdb1bdc614dc0f3674db2d9754e180b09cabfb187e3cb9b00e5780f66a74ac5b
- MD5 a85d828134a0524c41f8c758ecda2e96
- SHA1 98a5641dd3579a829e73a190a8e09b4496fec1f4
- SHA512 ef2639ca065971e8196df5755f60726b89f0c390fc25b87e9bcfcdaed3d46b62fb3539c30b99e0aeffc5a3e5202d73535a0a32f9487afea2f035f6d0634c598b
- SSDEEP 6144:5cTgav1cdCTuoPbgwmOLJvKRwLSFXdFwirGcEOkCybEaQRXr9HNdvOa+y8KU5R2:5SvO2x9mONvKRwLSFtsOkx2LIa+ya5g
- TLSH T115D46B26B6908037C0B74675C5B64BAAFAB5BC21631186CFA380761A1F737D2BE3570D
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 2348 b6fb291f - 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 153 114.114.114.114 1908 fdb1bdc614dc0f3674db2d9754e180b09cabfb187e3cb9b00e5780f66a74ac5b.exe Destination IP 225 223.5.5.5 1908 fdb1bdc614dc0f3674db2d9754e180b09cabfb187e3cb9b00e5780f66a74ac5b.exe Destination IP 301 223.5.5.5 1908 fdb1bdc614dc0f3674db2d9754e180b09cabfb187e3cb9b00e5780f66a74ac5b.exe Destination IP 1 114.114.114.114 1908 fdb1bdc614dc0f3674db2d9754e180b09cabfb187e3cb9b00e5780f66a74ac5b.exe Destination IP 54 114.114.114.114 1908 fdb1bdc614dc0f3674db2d9754e180b09cabfb187e3cb9b00e5780f66a74ac5b.exe Destination IP 122 114.114.114.114 2348 b6fb291f Destination IP 123 223.5.5.5 1908 fdb1bdc614dc0f3674db2d9754e180b09cabfb187e3cb9b00e5780f66a74ac5b.exe Destination IP 300 114.114.114.114 1908 fdb1bdc614dc0f3674db2d9754e180b09cabfb187e3cb9b00e5780f66a74ac5b.exe Destination IP 462 114.114.114.114 1908 fdb1bdc614dc0f3674db2d9754e180b09cabfb187e3cb9b00e5780f66a74ac5b.exe Destination IP 371 223.5.5.5 1908 fdb1bdc614dc0f3674db2d9754e180b09cabfb187e3cb9b00e5780f66a74ac5b.exe Destination IP 401 114.114.114.114 1908 fdb1bdc614dc0f3674db2d9754e180b09cabfb187e3cb9b00e5780f66a74ac5b.exe Destination IP 463 223.5.5.5 1908 fdb1bdc614dc0f3674db2d9754e180b09cabfb187e3cb9b00e5780f66a74ac5b.exe Destination IP 155 223.5.5.5 1908 fdb1bdc614dc0f3674db2d9754e180b09cabfb187e3cb9b00e5780f66a74ac5b.exe Destination IP 222 114.114.114.114 1908 fdb1bdc614dc0f3674db2d9754e180b09cabfb187e3cb9b00e5780f66a74ac5b.exe Destination IP 370 114.114.114.114 1908 fdb1bdc614dc0f3674db2d9754e180b09cabfb187e3cb9b00e5780f66a74ac5b.exe Destination IP 402 223.5.5.5 1908 fdb1bdc614dc0f3674db2d9754e180b09cabfb187e3cb9b00e5780f66a74ac5b.exe Destination IP 4 223.5.5.5 1908 fdb1bdc614dc0f3674db2d9754e180b09cabfb187e3cb9b00e5780f66a74ac5b.exe Destination IP 57 223.5.5.5 1908 fdb1bdc614dc0f3674db2d9754e180b09cabfb187e3cb9b00e5780f66a74ac5b.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\IE b6fb291f File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData b6fb291f File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 b6fb291f File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 b6fb291f File created C:\Windows\SysWOW64\b6fb291f fdb1bdc614dc0f3674db2d9754e180b09cabfb187e3cb9b00e5780f66a74ac5b.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 b6fb291f File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies b6fb291f File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft b6fb291f File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 b6fb291f File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 b6fb291f File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache b6fb291f File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 b6fb291f File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 b6fb291f File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 b6fb291f File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content b6fb291f -
resource yara_rule behavioral1/memory/1908-0-0x00000000004C0000-0x000000000054C000-memory.dmp upx behavioral1/memory/2348-4-0x0000000000080000-0x000000000010C000-memory.dmp upx behavioral1/files/0x000800000001e417-3.dat upx behavioral1/memory/1908-18-0x00000000004C0000-0x000000000054C000-memory.dmp upx behavioral1/memory/2348-21-0x0000000000080000-0x000000000010C000-memory.dmp upx behavioral1/memory/2348-38-0x0000000000080000-0x000000000010C000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\2832d8 b6fb291f File opened for modification C:\Windows\20aa68 fdb1bdc614dc0f3674db2d9754e180b09cabfb187e3cb9b00e5780f66a74ac5b.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 b6fb291f Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain b6fb291f Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname fdb1bdc614dc0f3674db2d9754e180b09cabfb187e3cb9b00e5780f66a74ac5b.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain fdb1bdc614dc0f3674db2d9754e180b09cabfb187e3cb9b00e5780f66a74ac5b.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 fdb1bdc614dc0f3674db2d9754e180b09cabfb187e3cb9b00e5780f66a74ac5b.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language b6fb291f - 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\History\CachePrefix = "Visited:" b6fb291f Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ b6fb291f Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" b6fb291f Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" b6fb291f Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing b6fb291f Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix b6fb291f Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" b6fb291f Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" b6fb291f Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" b6fb291f - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 2348 b6fb291f 2348 b6fb291f 2348 b6fb291f 2348 b6fb291f 2348 b6fb291f 2348 b6fb291f 2348 b6fb291f 2348 b6fb291f 1908 fdb1bdc614dc0f3674db2d9754e180b09cabfb187e3cb9b00e5780f66a74ac5b.exe 1908 fdb1bdc614dc0f3674db2d9754e180b09cabfb187e3cb9b00e5780f66a74ac5b.exe 1908 fdb1bdc614dc0f3674db2d9754e180b09cabfb187e3cb9b00e5780f66a74ac5b.exe 1908 fdb1bdc614dc0f3674db2d9754e180b09cabfb187e3cb9b00e5780f66a74ac5b.exe 1908 fdb1bdc614dc0f3674db2d9754e180b09cabfb187e3cb9b00e5780f66a74ac5b.exe 1908 fdb1bdc614dc0f3674db2d9754e180b09cabfb187e3cb9b00e5780f66a74ac5b.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 1908 fdb1bdc614dc0f3674db2d9754e180b09cabfb187e3cb9b00e5780f66a74ac5b.exe Token: SeTcbPrivilege 1908 fdb1bdc614dc0f3674db2d9754e180b09cabfb187e3cb9b00e5780f66a74ac5b.exe Token: SeDebugPrivilege 2348 b6fb291f Token: SeTcbPrivilege 2348 b6fb291f
Processes
-
C:\Users\Admin\AppData\Local\Temp\fdb1bdc614dc0f3674db2d9754e180b09cabfb187e3cb9b00e5780f66a74ac5b.exe"C:\Users\Admin\AppData\Local\Temp\fdb1bdc614dc0f3674db2d9754e180b09cabfb187e3cb9b00e5780f66a74ac5b.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:1908
-
C:\Windows\Syswow64\b6fb291fC:\Windows\Syswow64\b6fb291f1⤵
- 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:2348
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\b6fb291f
- Size 638KB
- SHA256 14dbf9c80271e35b0852893eb8670ca4d49a253581a27bf5a403dafe544962b6
- MD5 0ed7a219b00941ef1b0e5124fb678710
- SHA1 e6bd21f442ea58f2520352d3916c034ada18b3a3
- SHA512 ccfdc3738d66ba9f9c05d081305c6bd04f089ecb940c279b82fb46eb4f5a4badd7bf03a26199bf7ab6cbeb5f22ec45fc734f20be125940b5b3a46f2c9c65fa7a
- SSDEEP 6144:YcTgav1cdCTuoPbgwmOLJvKRwLSFXdFwirGcEOkCybEaQRXr9HNdvOa+y8KU5R2:YSvO2x9mONvKRwLSFtsOkx2LIa+ya5g
- TLSH T1D0D46B26B6908037C0B74675C5B64BAAFAB5BC21631186CFA380761A1F737D2BE3570D
- MD5 SHA1 SHA512 SSDEEP TLSH