Analysis
- max time kernel
148s - max time network
150s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
10/08/2026, 22:25
Behavioral task
behavioral1
Sample
b7bbd407cc435df8fb3899b3756dac5a97bc7b5c5126eeaa09d8cc53e57ff91a.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target b7bbd407cc435df8fb3899b3756dac5a97bc7b5c5126eeaa09d8cc53e57ff91a.exe
- Size 640KB
- Sample260810-2bzecaaq9s
- SHA256 b7bbd407cc435df8fb3899b3756dac5a97bc7b5c5126eeaa09d8cc53e57ff91a
- MD5 a963bc9c09f3571f78db53bde3a40655
- SHA1 1370158022738cd90be57f98931cc0446fbe2c94
- SHA512 63612f92643a56c2c36292f1983a7944a8a22f6453520595f4e8c9398ef30838bcb6b64672dfc6f9cece7577a2f4c8268a257234c9f7c11d046bd259d6729cfd
- SSDEEP 6144:KcTgav1cdCTuoPbgwmOLJvKRwLSFXdFwirGcEOkCybEaQRuy8KU5Rc:KSvO2x9mONvKRwLSFtsOkxHya5+
- TLSH T169D45B35A6808036C0B74631C6F64BAAF9B5BC25631195CFA384376A1F737D2BA3570E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 4564 48f1111c - 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 1 114.114.114.114 5404 b7bbd407cc435df8fb3899b3756dac5a97bc7b5c5126eeaa09d8cc53e57ff91a.exe Destination IP 5 223.5.5.5 5404 b7bbd407cc435df8fb3899b3756dac5a97bc7b5c5126eeaa09d8cc53e57ff91a.exe Destination IP 19 114.114.114.114 5404 b7bbd407cc435df8fb3899b3756dac5a97bc7b5c5126eeaa09d8cc53e57ff91a.exe Destination IP 20 223.5.5.5 5404 b7bbd407cc435df8fb3899b3756dac5a97bc7b5c5126eeaa09d8cc53e57ff91a.exe - Drops file in System32 directory 17 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\3EC845F33427F1C99AF855BE8930371C 48f1111c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 48f1111c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 48f1111c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 48f1111c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 48f1111c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\3EC845F33427F1C99AF855BE8930371C 48f1111c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 48f1111c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 48f1111c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 48f1111c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 48f1111c File created C:\Windows\SysWOW64\48f1111c b7bbd407cc435df8fb3899b3756dac5a97bc7b5c5126eeaa09d8cc53e57ff91a.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 48f1111c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 48f1111c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 48f1111c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 48f1111c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 48f1111c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 48f1111c -
resource yara_rule behavioral2/memory/5404-0-0x0000000000210000-0x000000000029C000-memory.dmp upx behavioral2/files/0x000800000001b884-2.dat upx behavioral2/memory/4564-3-0x0000000000A90000-0x0000000000B1C000-memory.dmp upx behavioral2/memory/5404-15-0x0000000000210000-0x000000000029C000-memory.dmp upx behavioral2/memory/4564-16-0x0000000000A90000-0x0000000000B1C000-memory.dmp upx behavioral2/memory/4564-35-0x0000000000A90000-0x0000000000B1C000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\4e2328 48f1111c File opened for modification C:\Windows\5c84b8 b7bbd407cc435df8fb3899b3756dac5a97bc7b5c5126eeaa09d8cc53e57ff91a.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 b7bbd407cc435df8fb3899b3756dac5a97bc7b5c5126eeaa09d8cc53e57ff91a.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 48f1111c - 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 48f1111c Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" 48f1111c Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 48f1111c Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 48f1111c Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 48f1111c Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 48f1111c Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 48f1111c Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 48f1111c Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 48f1111c - Suspicious behavior: EnumeratesProcesses 22 IoCs
pid Process 4564 48f1111c 4564 48f1111c 4564 48f1111c 4564 48f1111c 4564 48f1111c 4564 48f1111c 4564 48f1111c 4564 48f1111c 5404 b7bbd407cc435df8fb3899b3756dac5a97bc7b5c5126eeaa09d8cc53e57ff91a.exe 5404 b7bbd407cc435df8fb3899b3756dac5a97bc7b5c5126eeaa09d8cc53e57ff91a.exe 5404 b7bbd407cc435df8fb3899b3756dac5a97bc7b5c5126eeaa09d8cc53e57ff91a.exe 5404 b7bbd407cc435df8fb3899b3756dac5a97bc7b5c5126eeaa09d8cc53e57ff91a.exe 5404 b7bbd407cc435df8fb3899b3756dac5a97bc7b5c5126eeaa09d8cc53e57ff91a.exe 5404 b7bbd407cc435df8fb3899b3756dac5a97bc7b5c5126eeaa09d8cc53e57ff91a.exe 5404 b7bbd407cc435df8fb3899b3756dac5a97bc7b5c5126eeaa09d8cc53e57ff91a.exe 5404 b7bbd407cc435df8fb3899b3756dac5a97bc7b5c5126eeaa09d8cc53e57ff91a.exe 5404 b7bbd407cc435df8fb3899b3756dac5a97bc7b5c5126eeaa09d8cc53e57ff91a.exe 5404 b7bbd407cc435df8fb3899b3756dac5a97bc7b5c5126eeaa09d8cc53e57ff91a.exe 5404 b7bbd407cc435df8fb3899b3756dac5a97bc7b5c5126eeaa09d8cc53e57ff91a.exe 5404 b7bbd407cc435df8fb3899b3756dac5a97bc7b5c5126eeaa09d8cc53e57ff91a.exe 5404 b7bbd407cc435df8fb3899b3756dac5a97bc7b5c5126eeaa09d8cc53e57ff91a.exe 5404 b7bbd407cc435df8fb3899b3756dac5a97bc7b5c5126eeaa09d8cc53e57ff91a.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 5404 b7bbd407cc435df8fb3899b3756dac5a97bc7b5c5126eeaa09d8cc53e57ff91a.exe Token: SeTcbPrivilege 5404 b7bbd407cc435df8fb3899b3756dac5a97bc7b5c5126eeaa09d8cc53e57ff91a.exe Token: SeDebugPrivilege 4564 48f1111c Token: SeTcbPrivilege 4564 48f1111c
Processes
-
C:\Users\Admin\AppData\Local\Temp\b7bbd407cc435df8fb3899b3756dac5a97bc7b5c5126eeaa09d8cc53e57ff91a.exe"C:\Users\Admin\AppData\Local\Temp\b7bbd407cc435df8fb3899b3756dac5a97bc7b5c5126eeaa09d8cc53e57ff91a.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:5404
-
C:\Windows\Syswow64\48f1111cC:\Windows\Syswow64\48f1111c1⤵
- 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:4564
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\48f1111c
- Size 640KB
- SHA256 e87012486f67cdc03a323e214d61cbc3469dd300860f2735d694cba899948cc4
- MD5 0699bbd63662105bc14dd989bfb6eeee
- SHA1 034d864946453345a61bf21264b585ef699ccee4
- SHA512 654b11919f39e63fb657546c3db143116ee467291ca411bdb5a16083093673a26940a3c3a0538641fc74a629c6015839bd514bad7cd453f7ff38cb883cd93319
- SSDEEP 6144:dcTgav1cdCTuoPbgwmOLJvKRwLSFXdFwirGcEOkCybEaQRuy8KU5Rc:dSvO2x9mONvKRwLSFtsOkxHya5+
- TLSH T1B7D45B35A6808036C0B74631C6F64BAAF9B5BC25631195CFA384376A1F737D2BA3570E
- MD5 SHA1 SHA512 SSDEEP TLSH