Analysis
- max time kernel
149s - max time network
148s - platform
windows10-2004_x64 - resource
win10v2004-20260130-en - resource tags
arch:x64arch:x86image:win10v2004-20260130-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
17/04/2026, 22:30
Behavioral task
behavioral1
Sample
39333a8bc67549d61411933b8f64e9ff5e42a4479bd7978b7a07205e5376713c.exe
Resource
win10v2004-20260130-en
windows10-2004-x64
10 signatures
150 seconds
General
- Target 39333a8bc67549d61411933b8f64e9ff5e42a4479bd7978b7a07205e5376713c.exe
- Size 768KB
- Sample260417-2evkkahs4m
- SHA256 39333a8bc67549d61411933b8f64e9ff5e42a4479bd7978b7a07205e5376713c
- MD5 614f27ca64b6be02a3e97355620daf1a
- SHA1 3dc34ab5ea2431fdef7d33fe6470e0e1518192c8
- SHA512 766dcb5557e81c169236dae326188920c09f536c3b9db2deb8a50e8c630f8843380af6f43abbdcdb6c90ab2765b50a85efcf24d8d2616a2473eae3f92b5602e4
- SSDEEP 12288:TqXUHkUXe39sOkx2LIan5FAQjU/LikGU5rCOTeidT:TjHPOSOkx2LFscU6UQOJdT
- TLSH T158F47D31E241C036D6A74572C6FA4BBBA5247D25431161CBA7C4BA262FB76D2FA3130F
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
7/10
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 3676 efd715ec - Unexpected DNS network traffic destination 8 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
description flow ioc pid Process Destination IP 4 223.5.5.5 4912 39333a8bc67549d61411933b8f64e9ff5e42a4479bd7978b7a07205e5376713c.exe Destination IP 57 114.114.114.114 4912 39333a8bc67549d61411933b8f64e9ff5e42a4479bd7978b7a07205e5376713c.exe Destination IP 59 223.5.5.5 4912 39333a8bc67549d61411933b8f64e9ff5e42a4479bd7978b7a07205e5376713c.exe Destination IP 80 114.114.114.114 4912 39333a8bc67549d61411933b8f64e9ff5e42a4479bd7978b7a07205e5376713c.exe Destination IP 81 223.5.5.5 4912 39333a8bc67549d61411933b8f64e9ff5e42a4479bd7978b7a07205e5376713c.exe Destination IP 112 114.114.114.114 4912 39333a8bc67549d61411933b8f64e9ff5e42a4479bd7978b7a07205e5376713c.exe Destination IP 113 223.5.5.5 4912 39333a8bc67549d61411933b8f64e9ff5e42a4479bd7978b7a07205e5376713c.exe Destination IP 3 114.114.114.114 4912 39333a8bc67549d61411933b8f64e9ff5e42a4479bd7978b7a07205e5376713c.exe - Drops file in System32 directory 15 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData efd715ec File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content efd715ec File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 efd715ec File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE efd715ec File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies efd715ec File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft efd715ec File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\AAD646CB44373074ADE741C38400E7E1 efd715ec File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 efd715ec File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache efd715ec File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 efd715ec File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 efd715ec File created C:\Windows\SysWOW64\efd715ec 39333a8bc67549d61411933b8f64e9ff5e42a4479bd7978b7a07205e5376713c.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 efd715ec File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\AAD646CB44373074ADE741C38400E7E1 efd715ec File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 efd715ec -
resource yara_rule behavioral1/memory/4912-0-0x0000000000430000-0x00000000004B9000-memory.dmp upx behavioral1/memory/3676-3-0x00000000005A0000-0x0000000000629000-memory.dmp upx behavioral1/files/0x000a000000024238-4.dat upx behavioral1/memory/4912-10-0x0000000000430000-0x00000000004B9000-memory.dmp upx behavioral1/memory/3676-13-0x00000000005A0000-0x0000000000629000-memory.dmp upx behavioral1/memory/4912-41-0x0000000000430000-0x00000000004B9000-memory.dmp upx behavioral1/memory/3676-43-0x00000000005A0000-0x0000000000629000-memory.dmp upx behavioral1/memory/4912-57-0x0000000000430000-0x00000000004B9000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\3eef38 efd715ec File opened for modification C:\Windows\541860 39333a8bc67549d61411933b8f64e9ff5e42a4479bd7978b7a07205e5376713c.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 39333a8bc67549d61411933b8f64e9ff5e42a4479bd7978b7a07205e5376713c.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language efd715ec - 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 efd715ec Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" efd715ec Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ efd715ec Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" efd715ec Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" efd715ec Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" efd715ec Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" efd715ec Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" efd715ec Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing efd715ec - Modifies system certificate store 2 TTPs 2 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\1F24C630CDA418EF2069FFAD4FDD5F463A1B69AA efd715ec Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\1F24C630CDA418EF2069FFAD4FDD5F463A1B69AA\Blob = 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 efd715ec - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 3676 efd715ec 3676 efd715ec 3676 efd715ec 3676 efd715ec 3676 efd715ec 3676 efd715ec 3676 efd715ec 3676 efd715ec 4912 39333a8bc67549d61411933b8f64e9ff5e42a4479bd7978b7a07205e5376713c.exe 4912 39333a8bc67549d61411933b8f64e9ff5e42a4479bd7978b7a07205e5376713c.exe 4912 39333a8bc67549d61411933b8f64e9ff5e42a4479bd7978b7a07205e5376713c.exe 4912 39333a8bc67549d61411933b8f64e9ff5e42a4479bd7978b7a07205e5376713c.exe 4912 39333a8bc67549d61411933b8f64e9ff5e42a4479bd7978b7a07205e5376713c.exe 4912 39333a8bc67549d61411933b8f64e9ff5e42a4479bd7978b7a07205e5376713c.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 4912 39333a8bc67549d61411933b8f64e9ff5e42a4479bd7978b7a07205e5376713c.exe Token: SeTcbPrivilege 4912 39333a8bc67549d61411933b8f64e9ff5e42a4479bd7978b7a07205e5376713c.exe Token: SeDebugPrivilege 3676 efd715ec Token: SeTcbPrivilege 3676 efd715ec
Processes
-
C:\Users\Admin\AppData\Local\Temp\39333a8bc67549d61411933b8f64e9ff5e42a4479bd7978b7a07205e5376713c.exe"C:\Users\Admin\AppData\Local\Temp\39333a8bc67549d61411933b8f64e9ff5e42a4479bd7978b7a07205e5376713c.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:4912
-
C:\Windows\Syswow64\efd715ecC:\Windows\Syswow64\efd715ec1⤵
- Executes dropped EXE
- Drops file in System32 directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
- Modifies system certificate store
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3676
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\efd715ec
- Size 768KB
- SHA256 a05331ce139c5d5e4cdda90656b18079dd8abffab17e7228cf9bf427f0055e01
- MD5 436083a2eff565154b1e9d057d938ee7
- SHA1 a2f6a75c3f66bcbbcec0ea6f16a1bbce4b783253
- SHA512 6360a77dfe6ef1d5035fe2a4bcfcc6e78e3d331a6627ca78395998ab82189be1cd79c6baa961ce23227f77d5e4199d1a2ba574c87a888c0c5c8078d5d1d4df99
- SSDEEP 12288:sqXUHkUXe39sOkx2LIan5FAQjU/LikGU5rCOTeidT:sjHPOSOkx2LFscU6UQOJdT
- TLSH T1F3F47D31E241C036D6A74572C6FA4BBBA5247D25431161CBA7C4BA262FB76D2FA3130F
- MD5 SHA1 SHA512 SSDEEP TLSH