Analysis
- max time kernel
149s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
08/07/2026, 14:19
Behavioral task
behavioral1
Sample
c528f3762fdd8dbbd33c71412260d8b8a56103e613c6c5396353eb28eff8afdd.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
9 signatures
150 seconds
Behavioral task
behavioral2
Sample
c528f3762fdd8dbbd33c71412260d8b8a56103e613c6c5396353eb28eff8afdd.exe
Resource
win11ltsc2024-20260706-en
windows11-ltsc_2024-x64
21 signatures
150 seconds
General
- Target c528f3762fdd8dbbd33c71412260d8b8a56103e613c6c5396353eb28eff8afdd.exe
- Size 640KB
- Sample260708-rm3wsshv6q
- SHA256 c528f3762fdd8dbbd33c71412260d8b8a56103e613c6c5396353eb28eff8afdd
- MD5 6f09beb69908e1b84ca2bb571945c39f
- SHA1 13d4ff63ec56494a7859e1ebf8efcb999f97a914
- SHA512 b0d8bfa8ee3ef35c9717c7b3f71f9761b1417fe6579f8a765310c2e2c7996d343b9a015a8773500be35f9acb355ae8f296ca9aee1d27660405d65f074076a912
- SSDEEP 6144:jcTgav1cdCTuoPbgwmOLJvKRwLSFXdFwirGcEOkCybEaQRuy8KU5Rc:jSvO2x9mONvKRwLSFtsOkxHya5+
- TLSH T11DD45B35A6808036C0B74631C6F64BAAF9B5BC25631195CFA384376A1F737D2BA3570E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 4416 4fbc95c5 - 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 40 223.5.5.5 4308 c528f3762fdd8dbbd33c71412260d8b8a56103e613c6c5396353eb28eff8afdd.exe Destination IP 3 114.114.114.114 4308 c528f3762fdd8dbbd33c71412260d8b8a56103e613c6c5396353eb28eff8afdd.exe Destination IP 4 223.5.5.5 4308 c528f3762fdd8dbbd33c71412260d8b8a56103e613c6c5396353eb28eff8afdd.exe Destination IP 39 114.114.114.114 4308 c528f3762fdd8dbbd33c71412260d8b8a56103e613c6c5396353eb28eff8afdd.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\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 4fbc95c5 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 4fbc95c5 File created C:\Windows\SysWOW64\4fbc95c5 c528f3762fdd8dbbd33c71412260d8b8a56103e613c6c5396353eb28eff8afdd.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 4fbc95c5 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 4fbc95c5 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 4fbc95c5 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 4fbc95c5 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 4fbc95c5 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 4fbc95c5 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 4fbc95c5 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 4fbc95c5 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 4fbc95c5 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 4fbc95c5 -
resource yara_rule behavioral1/memory/4308-0-0x0000000000560000-0x00000000005EC000-memory.dmp upx behavioral1/files/0x00200000000231d5-2.dat upx behavioral1/memory/4416-4-0x0000000000680000-0x000000000070C000-memory.dmp upx behavioral1/memory/4308-10-0x0000000000560000-0x00000000005EC000-memory.dmp upx behavioral1/memory/4416-11-0x0000000000680000-0x000000000070C000-memory.dmp upx behavioral1/memory/4416-25-0x0000000000680000-0x000000000070C000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\4b9a80 4fbc95c5 File opened for modification C:\Windows\49c128 c528f3762fdd8dbbd33c71412260d8b8a56103e613c6c5396353eb28eff8afdd.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 c528f3762fdd8dbbd33c71412260d8b8a56103e613c6c5396353eb28eff8afdd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 4fbc95c5 - Modifies data under HKEY_USERS 9 IoCs
description ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 4fbc95c5 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 4fbc95c5 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 4fbc95c5 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 4fbc95c5 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix 4fbc95c5 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" 4fbc95c5 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 4fbc95c5 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 4fbc95c5 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 4fbc95c5 - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 4416 4fbc95c5 4416 4fbc95c5 4416 4fbc95c5 4416 4fbc95c5 4416 4fbc95c5 4416 4fbc95c5 4416 4fbc95c5 4416 4fbc95c5 4308 c528f3762fdd8dbbd33c71412260d8b8a56103e613c6c5396353eb28eff8afdd.exe 4308 c528f3762fdd8dbbd33c71412260d8b8a56103e613c6c5396353eb28eff8afdd.exe 4308 c528f3762fdd8dbbd33c71412260d8b8a56103e613c6c5396353eb28eff8afdd.exe 4308 c528f3762fdd8dbbd33c71412260d8b8a56103e613c6c5396353eb28eff8afdd.exe 4308 c528f3762fdd8dbbd33c71412260d8b8a56103e613c6c5396353eb28eff8afdd.exe 4308 c528f3762fdd8dbbd33c71412260d8b8a56103e613c6c5396353eb28eff8afdd.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 4308 c528f3762fdd8dbbd33c71412260d8b8a56103e613c6c5396353eb28eff8afdd.exe Token: SeTcbPrivilege 4308 c528f3762fdd8dbbd33c71412260d8b8a56103e613c6c5396353eb28eff8afdd.exe Token: SeDebugPrivilege 4416 4fbc95c5 Token: SeTcbPrivilege 4416 4fbc95c5
Processes
-
C:\Users\Admin\AppData\Local\Temp\c528f3762fdd8dbbd33c71412260d8b8a56103e613c6c5396353eb28eff8afdd.exe"C:\Users\Admin\AppData\Local\Temp\c528f3762fdd8dbbd33c71412260d8b8a56103e613c6c5396353eb28eff8afdd.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:4308
-
C:\Windows\Syswow64\4fbc95c5C:\Windows\Syswow64\4fbc95c51⤵
- 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:4416
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\4fbc95c5
- Size 640KB
- SHA256 f18648d68b83f622995604de4178bbb01e5779359cd97fc3b7a043ad7f919f9a
- MD5 224782e8b8a33a26b78b01ea0a17daec
- SHA1 2c0cf14b17e7a1c4421df9cd910337763578820e
- SHA512 7d54416feb55b459ddea694cec7552e0e40509cb87530eeb72e807134f1ece07b4c2ed346d3a467713d18da203588813bb1e5dfa8b71840a8127b696aa0ea40a
- SSDEEP 6144:BcTgav1cdCTuoPbgwmOLJvKRwLSFXdFwirGcEOkCybEaQRuy8KU5Rc:BSvO2x9mONvKRwLSFtsOkxHya5+
- TLSH T109D45B35A6808036C0B74631C6F64BAAF9B5BC25631195CFA384376A1F737D2BA3570E
- MD5 SHA1 SHA512 SSDEEP TLSH