Analysis
- max time kernel
149s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20260130-en - resource tags
arch:x64arch:x86image:win10v2004-20260130-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
16/04/2026, 15:19
Behavioral task
behavioral1
Sample
99ce572631945f8df4227ea1840b701be3bae1358975add2f003791f421f47e5.exe
Resource
win10v2004-20260130-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target 99ce572631945f8df4227ea1840b701be3bae1358975add2f003791f421f47e5.exe
- Size 638KB
- Sample260416-sqdazsfx21
- SHA256 99ce572631945f8df4227ea1840b701be3bae1358975add2f003791f421f47e5
- MD5 048f8bf53d09d484508a37748cf5cc0a
- SHA1 89fbf82e61f6bb813d34215f1540409a12dfc530
- SHA512 daadd60f61e9a52261c8255584663653a92eb2bb6211a0483f46eb7e98370fb0a71c5d3ec9a7b1a023e341798340be2b52d73709e0879defb4eef103ccdd5cae
- SSDEEP 6144:ZcTgav1cdCTuoPbgwmOLJvKRwLSFXdFwirGcEOkCybEaQRXr9HNdvOa+y8KU5R2:ZSvO2x9mONvKRwLSFtsOkx2LIa+ya5g
- TLSH T1B2D46B26B6908037C0B74675C5B64BAAFAB5BC21631186CFA380761A1F737D2BE3570D
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 3900 f028242b - 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 3 114.114.114.114 3860 99ce572631945f8df4227ea1840b701be3bae1358975add2f003791f421f47e5.exe Destination IP 4 223.5.5.5 3860 99ce572631945f8df4227ea1840b701be3bae1358975add2f003791f421f47e5.exe Destination IP 27 114.114.114.114 3860 99ce572631945f8df4227ea1840b701be3bae1358975add2f003791f421f47e5.exe Destination IP 28 223.5.5.5 3860 99ce572631945f8df4227ea1840b701be3bae1358975add2f003791f421f47e5.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 f028242b File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 f028242b File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 f028242b File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 f028242b File created C:\Windows\SysWOW64\f028242b 99ce572631945f8df4227ea1840b701be3bae1358975add2f003791f421f47e5.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 f028242b File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft f028242b File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 f028242b File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 f028242b File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache f028242b File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData f028242b File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content f028242b File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 f028242b File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE f028242b File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 f028242b -
resource yara_rule behavioral1/memory/3860-0-0x0000000000720000-0x00000000007AC000-memory.dmp upx behavioral1/files/0x001100000001d8b6-2.dat upx behavioral1/memory/3900-4-0x00000000008A0000-0x000000000092C000-memory.dmp upx behavioral1/memory/3860-18-0x0000000000720000-0x00000000007AC000-memory.dmp upx behavioral1/memory/3900-20-0x00000000008A0000-0x000000000092C000-memory.dmp upx behavioral1/memory/3900-39-0x00000000008A0000-0x000000000092C000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\4215a8 99ce572631945f8df4227ea1840b701be3bae1358975add2f003791f421f47e5.exe File opened for modification C:\Windows\42c4f8 f028242b - 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 99ce572631945f8df4227ea1840b701be3bae1358975add2f003791f421f47e5.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language f028242b - Modifies data under HKEY_USERS 9 IoCs
description ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ f028242b Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" f028242b Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing f028242b Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix f028242b Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" f028242b Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" f028242b Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" f028242b Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" f028242b Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" f028242b - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 3900 f028242b 3900 f028242b 3900 f028242b 3900 f028242b 3900 f028242b 3900 f028242b 3900 f028242b 3900 f028242b 3860 99ce572631945f8df4227ea1840b701be3bae1358975add2f003791f421f47e5.exe 3860 99ce572631945f8df4227ea1840b701be3bae1358975add2f003791f421f47e5.exe 3860 99ce572631945f8df4227ea1840b701be3bae1358975add2f003791f421f47e5.exe 3860 99ce572631945f8df4227ea1840b701be3bae1358975add2f003791f421f47e5.exe 3860 99ce572631945f8df4227ea1840b701be3bae1358975add2f003791f421f47e5.exe 3860 99ce572631945f8df4227ea1840b701be3bae1358975add2f003791f421f47e5.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 3860 99ce572631945f8df4227ea1840b701be3bae1358975add2f003791f421f47e5.exe Token: SeTcbPrivilege 3860 99ce572631945f8df4227ea1840b701be3bae1358975add2f003791f421f47e5.exe Token: SeDebugPrivilege 3900 f028242b Token: SeTcbPrivilege 3900 f028242b
Processes
-
C:\Users\Admin\AppData\Local\Temp\99ce572631945f8df4227ea1840b701be3bae1358975add2f003791f421f47e5.exe"C:\Users\Admin\AppData\Local\Temp\99ce572631945f8df4227ea1840b701be3bae1358975add2f003791f421f47e5.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:3860
-
C:\Windows\Syswow64\f028242bC:\Windows\Syswow64\f028242b1⤵
- 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:3900
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\f028242b
- Size 638KB
- SHA256 e93ff8040b9d5a407699389fa3535ea3e87dd0fcc64acf32681b0867294876a0
- MD5 c99806a60ed06b9fa58ce9ea3b73fd79
- SHA1 2f65442c61fabbb0e9c8df4f62fc45a187b6dac2
- SHA512 1884bcb88570333ede0ebd7cb8b2fcd0a1477df0a7ffde85fe4494d76846389136d5ae6efac57b5db5eb37a72e384af618964bd08fcdf94693bfe414888b442f
- SSDEEP 6144:fcTgav1cdCTuoPbgwmOLJvKRwLSFXdFwirGcEOkCybEaQRXr9HNdvOa+y8KU5R2:fSvO2x9mONvKRwLSFtsOkx2LIa+ya5g
- TLSH T17ED46B26B6908037C0B74675C5B64BAAFAB5BC21631186CFA380761A1F737D2BE3570D
- MD5 SHA1 SHA512 SSDEEP TLSH