Analysis
- max time kernel
150s - max time network
153s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
25/09/2026, 19:38
Behavioral task
behavioral1
Sample
f73f8bcb188619cd2e1dd4c3b689ea42e001be451a17c78289cd467bcf1e61bf.exe
Resource
win10v2004-20260911-en
windows10-2004-x64
10 signatures
150 seconds
General
- Target f73f8bcb188619cd2e1dd4c3b689ea42e001be451a17c78289cd467bcf1e61bf.exe
- Size 1.7MB
- Sample260925-yck2kaws2p
- SHA256 f73f8bcb188619cd2e1dd4c3b689ea42e001be451a17c78289cd467bcf1e61bf
- MD5 0cd96273709ab32827fc54cbae31988b
- SHA1 50a1e8636617f7d1ea302b83fc2b08294927344e
- SHA512 3eee990ebb6ea04384646b091c981dc8a0d07dba0cd3f8e75479c4f69e98e3b6f758528450f0d2631387a3a88315524ee187abf67a378571bfd7a2ed19ecfdb0
- SSDEEP 24576:FvO2xJKRw2kOkx2LFRvcU6UQOJdBqsCPhH9Do2sOfNZMjHfUr:FHHKe2WQX56/OJdJCXDrsOFZMjHfUr
- TLSH T13A858D31AAC04132E2B3867585FA56F6A9257C222721E5CF62C57B291E737D3ED3070E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 4248 1da92e97 - Unexpected DNS network traffic destination 22 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
description flow ioc pid Process Destination IP 94 114.114.114.114 4248 1da92e97 Destination IP 182 223.5.5.5 3224 f73f8bcb188619cd2e1dd4c3b689ea42e001be451a17c78289cd467bcf1e61bf.exe Destination IP 284 223.5.5.5 3224 f73f8bcb188619cd2e1dd4c3b689ea42e001be451a17c78289cd467bcf1e61bf.exe Destination IP 320 114.114.114.114 3224 f73f8bcb188619cd2e1dd4c3b689ea42e001be451a17c78289cd467bcf1e61bf.exe Destination IP 352 114.114.114.114 3224 f73f8bcb188619cd2e1dd4c3b689ea42e001be451a17c78289cd467bcf1e61bf.exe Destination IP 40 114.114.114.114 3224 f73f8bcb188619cd2e1dd4c3b689ea42e001be451a17c78289cd467bcf1e61bf.exe Destination IP 149 114.114.114.114 3224 f73f8bcb188619cd2e1dd4c3b689ea42e001be451a17c78289cd467bcf1e61bf.exe Destination IP 150 223.5.5.5 3224 f73f8bcb188619cd2e1dd4c3b689ea42e001be451a17c78289cd467bcf1e61bf.exe Destination IP 235 114.114.114.114 3224 f73f8bcb188619cd2e1dd4c3b689ea42e001be451a17c78289cd467bcf1e61bf.exe Destination IP 282 114.114.114.114 3224 f73f8bcb188619cd2e1dd4c3b689ea42e001be451a17c78289cd467bcf1e61bf.exe Destination IP 407 223.5.5.5 3224 f73f8bcb188619cd2e1dd4c3b689ea42e001be451a17c78289cd467bcf1e61bf.exe Destination IP 460 114.114.114.114 3224 f73f8bcb188619cd2e1dd4c3b689ea42e001be451a17c78289cd467bcf1e61bf.exe Destination IP 461 223.5.5.5 3224 f73f8bcb188619cd2e1dd4c3b689ea42e001be451a17c78289cd467bcf1e61bf.exe Destination IP 95 223.5.5.5 3224 f73f8bcb188619cd2e1dd4c3b689ea42e001be451a17c78289cd467bcf1e61bf.exe Destination IP 181 114.114.114.114 3224 f73f8bcb188619cd2e1dd4c3b689ea42e001be451a17c78289cd467bcf1e61bf.exe Destination IP 406 114.114.114.114 3224 f73f8bcb188619cd2e1dd4c3b689ea42e001be451a17c78289cd467bcf1e61bf.exe Destination IP 1 114.114.114.114 3224 f73f8bcb188619cd2e1dd4c3b689ea42e001be451a17c78289cd467bcf1e61bf.exe Destination IP 2 223.5.5.5 3224 f73f8bcb188619cd2e1dd4c3b689ea42e001be451a17c78289cd467bcf1e61bf.exe Destination IP 41 223.5.5.5 3224 f73f8bcb188619cd2e1dd4c3b689ea42e001be451a17c78289cd467bcf1e61bf.exe Destination IP 236 223.5.5.5 3224 f73f8bcb188619cd2e1dd4c3b689ea42e001be451a17c78289cd467bcf1e61bf.exe Destination IP 321 223.5.5.5 3224 f73f8bcb188619cd2e1dd4c3b689ea42e001be451a17c78289cd467bcf1e61bf.exe Destination IP 353 223.5.5.5 3224 f73f8bcb188619cd2e1dd4c3b689ea42e001be451a17c78289cd467bcf1e61bf.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\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 1da92e97 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 1da92e97 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 1da92e97 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 1da92e97 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 1da92e97 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 1da92e97 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 1da92e97 File created C:\Windows\SysWOW64\1da92e97 f73f8bcb188619cd2e1dd4c3b689ea42e001be451a17c78289cd467bcf1e61bf.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 1da92e97 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 1da92e97 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 1da92e97 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 1da92e97 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 1da92e97 -
resource yara_rule behavioral2/memory/3224-0-0x0000000000160000-0x00000000001EC000-memory.dmp upx behavioral2/files/0x000a00000001b892-2.dat upx behavioral2/memory/4248-3-0x00000000003A0000-0x000000000042C000-memory.dmp upx behavioral2/memory/3224-18-0x0000000000160000-0x00000000001EC000-memory.dmp upx behavioral2/memory/4248-19-0x00000000003A0000-0x000000000042C000-memory.dmp upx behavioral2/memory/4248-42-0x00000000003A0000-0x000000000042C000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\48ba30 1da92e97 File opened for modification C:\Windows\373230 f73f8bcb188619cd2e1dd4c3b689ea42e001be451a17c78289cd467bcf1e61bf.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 1da92e97 Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain 1da92e97 Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname f73f8bcb188619cd2e1dd4c3b689ea42e001be451a17c78289cd467bcf1e61bf.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain f73f8bcb188619cd2e1dd4c3b689ea42e001be451a17c78289cd467bcf1e61bf.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 f73f8bcb188619cd2e1dd4c3b689ea42e001be451a17c78289cd467bcf1e61bf.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 1da92e97 - 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 1da92e97 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" 1da92e97 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 1da92e97 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 1da92e97 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 1da92e97 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 1da92e97 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 1da92e97 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 1da92e97 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 1da92e97 - Suspicious behavior: EnumeratesProcesses 22 IoCs
pid Process 4248 1da92e97 4248 1da92e97 4248 1da92e97 4248 1da92e97 4248 1da92e97 4248 1da92e97 4248 1da92e97 4248 1da92e97 3224 f73f8bcb188619cd2e1dd4c3b689ea42e001be451a17c78289cd467bcf1e61bf.exe 3224 f73f8bcb188619cd2e1dd4c3b689ea42e001be451a17c78289cd467bcf1e61bf.exe 3224 f73f8bcb188619cd2e1dd4c3b689ea42e001be451a17c78289cd467bcf1e61bf.exe 3224 f73f8bcb188619cd2e1dd4c3b689ea42e001be451a17c78289cd467bcf1e61bf.exe 3224 f73f8bcb188619cd2e1dd4c3b689ea42e001be451a17c78289cd467bcf1e61bf.exe 3224 f73f8bcb188619cd2e1dd4c3b689ea42e001be451a17c78289cd467bcf1e61bf.exe 3224 f73f8bcb188619cd2e1dd4c3b689ea42e001be451a17c78289cd467bcf1e61bf.exe 3224 f73f8bcb188619cd2e1dd4c3b689ea42e001be451a17c78289cd467bcf1e61bf.exe 3224 f73f8bcb188619cd2e1dd4c3b689ea42e001be451a17c78289cd467bcf1e61bf.exe 3224 f73f8bcb188619cd2e1dd4c3b689ea42e001be451a17c78289cd467bcf1e61bf.exe 3224 f73f8bcb188619cd2e1dd4c3b689ea42e001be451a17c78289cd467bcf1e61bf.exe 3224 f73f8bcb188619cd2e1dd4c3b689ea42e001be451a17c78289cd467bcf1e61bf.exe 3224 f73f8bcb188619cd2e1dd4c3b689ea42e001be451a17c78289cd467bcf1e61bf.exe 3224 f73f8bcb188619cd2e1dd4c3b689ea42e001be451a17c78289cd467bcf1e61bf.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 3224 f73f8bcb188619cd2e1dd4c3b689ea42e001be451a17c78289cd467bcf1e61bf.exe Token: SeTcbPrivilege 3224 f73f8bcb188619cd2e1dd4c3b689ea42e001be451a17c78289cd467bcf1e61bf.exe Token: SeDebugPrivilege 4248 1da92e97 Token: SeTcbPrivilege 4248 1da92e97
Processes
-
C:\Users\Admin\AppData\Local\Temp\f73f8bcb188619cd2e1dd4c3b689ea42e001be451a17c78289cd467bcf1e61bf.exe"C:\Users\Admin\AppData\Local\Temp\f73f8bcb188619cd2e1dd4c3b689ea42e001be451a17c78289cd467bcf1e61bf.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:3224
-
C:\Windows\Syswow64\1da92e97C:\Windows\Syswow64\1da92e971⤵
- 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:4248
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\1da92e97
- Size 1.7MB
- SHA256 0ca4f7ab58a45960bdb0434ee39e92c141fa9d5037cff3196d9e50fd65ae128d
- MD5 716cff92cc7e31c54413f2a4f11f5f62
- SHA1 6b15e3c0555630a2bd16c26fb0d0ed9d8ba70249
- SHA512 33a354e0a1e8dbe7bafe4e8237352272334f9b707840afe92fa64480d0c10b63c6eb830da6a6d57591d0ab0fba0a323c21e3b86c7ec88db21ac17d2c84ca5844
- SSDEEP 24576:GvO2xJKRw2kOkx2LFRvcU6UQOJdBqsCPhH9Do2sOfNZMjHfUr:GHHKe2WQX56/OJdJCXDrsOFZMjHfUr
- TLSH T1B0858D31AAC04132E2B3867585FA56F6A9257C222721E5CF62C57B291E737D3ED3070E
- MD5 SHA1 SHA512 SSDEEP TLSH