Analysis
- max time kernel
149s - max time network
151s - 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, 04:34
Behavioral task
behavioral1
Sample
3987a1ed90a7c144926224062ba3923b40ce9bbdcbe35326c9d5fc49bfe5b208.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
9 signatures
150 seconds
Behavioral task
behavioral2
Sample
3987a1ed90a7c144926224062ba3923b40ce9bbdcbe35326c9d5fc49bfe5b208.exe
Resource
win11-20260513-en
windows11-21h2-x64
10 signatures
150 seconds
General
- Target 3987a1ed90a7c144926224062ba3923b40ce9bbdcbe35326c9d5fc49bfe5b208.exe
- Size 384KB
- Sample260529-e662cacy3k
- SHA256 3987a1ed90a7c144926224062ba3923b40ce9bbdcbe35326c9d5fc49bfe5b208
- MD5 5bda69ec4db4e41ad1e3e4a17c098bf3
- SHA1 457a8cea4580d5d02d49cdf847a91662ded74e16
- SHA512 f7dd93435e67b6567822d4416650b137a5685536212e89f41ecd07f6c5ed69a13dd453935c3762e5bed355565ebf195587043d277c395ef5b381b98951ffc03b
- SSDEEP 6144:sl51orRJXlDixHkUXe35rGcEOkCybEaQRXr9HNdvOan5R2:QqXUHkUXe39sOkx2LIan5g
- TLSH T18A849D22F3518036C1978672C7B70F9AF7A5BD18831253CB5340B56A2FB32D2AE35719
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 4088 4907cbdf - 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 6 223.5.5.5 3524 3987a1ed90a7c144926224062ba3923b40ce9bbdcbe35326c9d5fc49bfe5b208.exe Destination IP 69 114.114.114.114 3524 3987a1ed90a7c144926224062ba3923b40ce9bbdcbe35326c9d5fc49bfe5b208.exe Destination IP 70 223.5.5.5 3524 3987a1ed90a7c144926224062ba3923b40ce9bbdcbe35326c9d5fc49bfe5b208.exe Destination IP 5 114.114.114.114 3524 3987a1ed90a7c144926224062ba3923b40ce9bbdcbe35326c9d5fc49bfe5b208.exe - Drops file in System32 directory 13 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 4907cbdf File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 4907cbdf File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 4907cbdf File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 4907cbdf File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 4907cbdf File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 4907cbdf File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 4907cbdf File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 4907cbdf File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 4907cbdf File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 4907cbdf File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 4907cbdf File created C:\Windows\SysWOW64\4907cbdf 3987a1ed90a7c144926224062ba3923b40ce9bbdcbe35326c9d5fc49bfe5b208.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 4907cbdf -
resource yara_rule behavioral1/memory/3524-0-0x0000000000980000-0x0000000000A09000-memory.dmp upx behavioral1/files/0x000b000000024390-2.dat upx behavioral1/memory/4088-3-0x0000000000CC0000-0x0000000000D49000-memory.dmp upx behavioral1/memory/3524-16-0x0000000000980000-0x0000000000A09000-memory.dmp upx behavioral1/memory/4088-18-0x0000000000CC0000-0x0000000000D49000-memory.dmp upx behavioral1/memory/3524-27-0x0000000000980000-0x0000000000A09000-memory.dmp upx behavioral1/memory/4088-28-0x0000000000CC0000-0x0000000000D49000-memory.dmp upx behavioral1/memory/3524-35-0x0000000000980000-0x0000000000A09000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\3c5508 3987a1ed90a7c144926224062ba3923b40ce9bbdcbe35326c9d5fc49bfe5b208.exe File opened for modification C:\Windows\45fcf0 4907cbdf - 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 3987a1ed90a7c144926224062ba3923b40ce9bbdcbe35326c9d5fc49bfe5b208.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 4907cbdf - 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\History\CachePrefix = "Visited:" 4907cbdf Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 4907cbdf Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 4907cbdf Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 4907cbdf Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 4907cbdf Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix 4907cbdf Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" 4907cbdf Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 4907cbdf Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 4907cbdf - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 4088 4907cbdf 4088 4907cbdf 4088 4907cbdf 4088 4907cbdf 4088 4907cbdf 4088 4907cbdf 4088 4907cbdf 4088 4907cbdf 3524 3987a1ed90a7c144926224062ba3923b40ce9bbdcbe35326c9d5fc49bfe5b208.exe 3524 3987a1ed90a7c144926224062ba3923b40ce9bbdcbe35326c9d5fc49bfe5b208.exe 3524 3987a1ed90a7c144926224062ba3923b40ce9bbdcbe35326c9d5fc49bfe5b208.exe 3524 3987a1ed90a7c144926224062ba3923b40ce9bbdcbe35326c9d5fc49bfe5b208.exe 3524 3987a1ed90a7c144926224062ba3923b40ce9bbdcbe35326c9d5fc49bfe5b208.exe 3524 3987a1ed90a7c144926224062ba3923b40ce9bbdcbe35326c9d5fc49bfe5b208.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 3524 3987a1ed90a7c144926224062ba3923b40ce9bbdcbe35326c9d5fc49bfe5b208.exe Token: SeTcbPrivilege 3524 3987a1ed90a7c144926224062ba3923b40ce9bbdcbe35326c9d5fc49bfe5b208.exe Token: SeDebugPrivilege 4088 4907cbdf Token: SeTcbPrivilege 4088 4907cbdf
Processes
-
C:\Users\Admin\AppData\Local\Temp\3987a1ed90a7c144926224062ba3923b40ce9bbdcbe35326c9d5fc49bfe5b208.exe"C:\Users\Admin\AppData\Local\Temp\3987a1ed90a7c144926224062ba3923b40ce9bbdcbe35326c9d5fc49bfe5b208.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:3524
-
C:\Windows\Syswow64\4907cbdfC:\Windows\Syswow64\4907cbdf1⤵
- 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:4088
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\4907cbdf
- Size 384KB
- SHA256 f1b8ba88e3a008cbcdd7fe56e2f4a48fd342ba83dce32f14e55723b3c1c91e09
- MD5 9061e94d839b8fc79cfba58dbc96b669
- SHA1 001e9e87c5abfe3ff735939c982a860f27414bcb
- SHA512 126a865d1ca8896faca0cf701df7f2092d096a3d55f0ad4c65eb621a6e730beb2bef2c7bdb8962b9109f464f8d8e4055820935c3ea804faa214f51cbed31fe83
- SSDEEP 6144:nl51orRJXlDixHkUXe35rGcEOkCybEaQRXr9HNdvOan5R2:JqXUHkUXe39sOkx2LIan5g
- TLSH T157849D22F3518036C1978672C7B70F9AF7A5BD18831253CB5340B56A2FB32D2AE35719
- MD5 SHA1 SHA512 SSDEEP TLSH