Analysis
- max time kernel
149s - max time network
153s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
29/05/2026, 03:52
Behavioral task
behavioral1
Sample
421c8e216b5246dab4538f61bcd0625fb40b9ed50954ca1561a625cb1de363c0.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target 421c8e216b5246dab4538f61bcd0625fb40b9ed50954ca1561a625cb1de363c0.exe
- Size 2.5MB
- Sample260529-efdxwact7q
- SHA256 421c8e216b5246dab4538f61bcd0625fb40b9ed50954ca1561a625cb1de363c0
- MD5 66362a6fd8c14e815bc5b16b1500783a
- SHA1 0c79e39377134f6a57a173e23e3e38f3c5352ad9
- SHA512 2eb4bb2e9e5686672c9bd3978f16f08b6f89542fda9d84a831ac32607936950899b9336e3fcc6c8496e2a46738d37fef484c40bd4605b2f58caf0b01d4ba43b8
- SSDEEP 49152:WHHKe2WQX56/OJdJCXDrsOFZMjHfUTGkQy5QZuTtN:WnKGEkOhCXHHFZMjHfUKkVWsT
- TLSH T1E7C58E31E6818136D1B34671C6FA57BBA5247C211721A5CFA3C87A2A1F736D3AE3170E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 4936 e8411a30 - 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 5 114.114.114.114 1812 421c8e216b5246dab4538f61bcd0625fb40b9ed50954ca1561a625cb1de363c0.exe Destination IP 6 223.5.5.5 1812 421c8e216b5246dab4538f61bcd0625fb40b9ed50954ca1561a625cb1de363c0.exe Destination IP 61 114.114.114.114 1812 421c8e216b5246dab4538f61bcd0625fb40b9ed50954ca1561a625cb1de363c0.exe Destination IP 62 223.5.5.5 1812 421c8e216b5246dab4538f61bcd0625fb40b9ed50954ca1561a625cb1de363c0.exe - Drops file in System32 directory 15 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies e8411a30 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 e8411a30 File created C:\Windows\SysWOW64\e8411a30 421c8e216b5246dab4538f61bcd0625fb40b9ed50954ca1561a625cb1de363c0.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE e8411a30 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData e8411a30 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\3EC845F33427F1C99AF855BE8930371C e8411a30 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 e8411a30 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 e8411a30 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 e8411a30 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 e8411a30 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft e8411a30 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache e8411a30 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content e8411a30 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\3EC845F33427F1C99AF855BE8930371C e8411a30 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 e8411a30 -
resource yara_rule behavioral1/memory/1812-0-0x0000000000990000-0x0000000000A1C000-memory.dmp upx behavioral1/files/0x000b00000002442f-3.dat upx behavioral1/memory/4936-4-0x00000000005A0000-0x000000000062C000-memory.dmp upx behavioral1/memory/1812-10-0x0000000000990000-0x0000000000A1C000-memory.dmp upx behavioral1/memory/4936-11-0x00000000005A0000-0x000000000062C000-memory.dmp upx behavioral1/memory/4936-31-0x00000000005A0000-0x000000000062C000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\548190 e8411a30 File opened for modification C:\Windows\1f05a8 421c8e216b5246dab4538f61bcd0625fb40b9ed50954ca1561a625cb1de363c0.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 421c8e216b5246dab4538f61bcd0625fb40b9ed50954ca1561a625cb1de363c0.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language e8411a30 - 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 e8411a30 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" e8411a30 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" e8411a30 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" e8411a30 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" e8411a30 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ e8411a30 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" e8411a30 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" e8411a30 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing e8411a30 - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 4936 e8411a30 4936 e8411a30 4936 e8411a30 4936 e8411a30 4936 e8411a30 4936 e8411a30 4936 e8411a30 4936 e8411a30 1812 421c8e216b5246dab4538f61bcd0625fb40b9ed50954ca1561a625cb1de363c0.exe 1812 421c8e216b5246dab4538f61bcd0625fb40b9ed50954ca1561a625cb1de363c0.exe 1812 421c8e216b5246dab4538f61bcd0625fb40b9ed50954ca1561a625cb1de363c0.exe 1812 421c8e216b5246dab4538f61bcd0625fb40b9ed50954ca1561a625cb1de363c0.exe 1812 421c8e216b5246dab4538f61bcd0625fb40b9ed50954ca1561a625cb1de363c0.exe 1812 421c8e216b5246dab4538f61bcd0625fb40b9ed50954ca1561a625cb1de363c0.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 1812 421c8e216b5246dab4538f61bcd0625fb40b9ed50954ca1561a625cb1de363c0.exe Token: SeTcbPrivilege 1812 421c8e216b5246dab4538f61bcd0625fb40b9ed50954ca1561a625cb1de363c0.exe Token: SeDebugPrivilege 4936 e8411a30 Token: SeTcbPrivilege 4936 e8411a30
Processes
-
C:\Users\Admin\AppData\Local\Temp\421c8e216b5246dab4538f61bcd0625fb40b9ed50954ca1561a625cb1de363c0.exe"C:\Users\Admin\AppData\Local\Temp\421c8e216b5246dab4538f61bcd0625fb40b9ed50954ca1561a625cb1de363c0.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:1812
-
C:\Windows\Syswow64\e8411a30C:\Windows\Syswow64\e8411a301⤵
- 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:4936
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Windows\SysWOW64\e8411a30
- Size 2.5MB
- SHA256 a892193b4c13b8fdf4c863f0a0b848e7322a6a358f27996968fb2bb5729fa1fd
- MD5 a96746e4ca0c8ea22dd76e48a8d8d2d3
- SHA1 bc3cdc526e560980b0f8e58dcca2a1db6fe79cf8
- SHA512 65ed9b43b248dea85dd9bb419b62b5370be9b3597b7e6b12fab90524117d7cdd11e04e35caccdb34f4730c4bab6f490696b69b02c1dfd5a46b0b04632c8db64e
- SSDEEP 49152:tHHKe2WQX56/OJdJCXDrsOFZMjHfUTGkQy5QZuTtN:tnKGEkOhCXHHFZMjHfUKkVWsT
- TLSH T10FC58E31E6818136D1B34671C6FA57BBA5247C211721A5CFA3C87A2A1F736D3AE3170E
- MD5 SHA1 SHA512 SSDEEP TLSH