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
23/04/2026, 11:19
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
3fd955924ba04713c6b3106f98fea69541dad7e5fe28174406f190f6e7344a27.exe
Resource
win10v2004-20260130-en
windows10-2004-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
3fd955924ba04713c6b3106f98fea69541dad7e5fe28174406f190f6e7344a27.exe
Resource
win11-20260130-en
windows11-21h2-x64
8 signatures
150 seconds
General
- Target 3fd955924ba04713c6b3106f98fea69541dad7e5fe28174406f190f6e7344a27.exe
- Size 448KB
- Sample260423-netflsa19y
- SHA256 3fd955924ba04713c6b3106f98fea69541dad7e5fe28174406f190f6e7344a27
- MD5 8e3eeb0364051552109e6a2616fb06f8
- SHA1 c6eba35189cf5c698f9d7306e24eb4a4dbadd558
- SHA512 f5ca1947b5aec75e515c1752ae6b15aec3a9cb042268553f0dc9d9ae5e018fed390ceac55bd30877d40782f12b460da3d427c28f897108885f64a533d63cb531
- SSDEEP 6144:McTgav1cdCTuoPbgwmOLJvKRILSFvdFbcEOkCybEaQRXr9HNdvOaty8KRpPUM:MSvO2x9mONvKRILSF/Okx2LIatyD
- TLSH T141A45C26B7909076C4B78674C8A247AAFBB1BC2127118B8FA39077191F73792BD3570D
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
7/10
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 4388 a940fae0 - 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 2632 3fd955924ba04713c6b3106f98fea69541dad7e5fe28174406f190f6e7344a27.exe Destination IP 4 223.5.5.5 2632 3fd955924ba04713c6b3106f98fea69541dad7e5fe28174406f190f6e7344a27.exe Destination IP 27 114.114.114.114 2632 3fd955924ba04713c6b3106f98fea69541dad7e5fe28174406f190f6e7344a27.exe Destination IP 31 223.5.5.5 2632 3fd955924ba04713c6b3106f98fea69541dad7e5fe28174406f190f6e7344a27.exe - Drops file in System32 directory 13 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 a940fae0 File created C:\Windows\SysWOW64\a940fae0 3fd955924ba04713c6b3106f98fea69541dad7e5fe28174406f190f6e7344a27.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 a940fae0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE a940fae0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache a940fae0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 a940fae0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content a940fae0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 a940fae0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 a940fae0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies a940fae0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 a940fae0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft a940fae0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData a940fae0 - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\4b1fc8 a940fae0 File opened for modification C:\Windows\2d0f90 3fd955924ba04713c6b3106f98fea69541dad7e5fe28174406f190f6e7344a27.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 3fd955924ba04713c6b3106f98fea69541dad7e5fe28174406f190f6e7344a27.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language a940fae0 - Modifies data under HKEY_USERS 9 IoCs
description ioc Process Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" a940fae0 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix a940fae0 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" a940fae0 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" a940fae0 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ a940fae0 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" a940fae0 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" a940fae0 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" a940fae0 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing a940fae0 - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 4388 a940fae0 4388 a940fae0 4388 a940fae0 4388 a940fae0 4388 a940fae0 4388 a940fae0 4388 a940fae0 4388 a940fae0 2632 3fd955924ba04713c6b3106f98fea69541dad7e5fe28174406f190f6e7344a27.exe 2632 3fd955924ba04713c6b3106f98fea69541dad7e5fe28174406f190f6e7344a27.exe 2632 3fd955924ba04713c6b3106f98fea69541dad7e5fe28174406f190f6e7344a27.exe 2632 3fd955924ba04713c6b3106f98fea69541dad7e5fe28174406f190f6e7344a27.exe 2632 3fd955924ba04713c6b3106f98fea69541dad7e5fe28174406f190f6e7344a27.exe 2632 3fd955924ba04713c6b3106f98fea69541dad7e5fe28174406f190f6e7344a27.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 2632 3fd955924ba04713c6b3106f98fea69541dad7e5fe28174406f190f6e7344a27.exe Token: SeTcbPrivilege 2632 3fd955924ba04713c6b3106f98fea69541dad7e5fe28174406f190f6e7344a27.exe Token: SeDebugPrivilege 4388 a940fae0 Token: SeTcbPrivilege 4388 a940fae0
Processes
-
C:\Users\Admin\AppData\Local\Temp\3fd955924ba04713c6b3106f98fea69541dad7e5fe28174406f190f6e7344a27.exe"C:\Users\Admin\AppData\Local\Temp\3fd955924ba04713c6b3106f98fea69541dad7e5fe28174406f190f6e7344a27.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:2632
-
C:\Windows\Syswow64\a940fae0C:\Windows\Syswow64\a940fae01⤵
- 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:4388
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\a940fae0
- Size 448KB
- SHA256 b9bc18eb171bf9155e629d27b0bfdf8700de3bfb366fbf1eefdaf55e1f252ef8
- MD5 9f3ff34cbc1ec509b9d8252a2dd6827c
- SHA1 72a9d3138457feb121db8efdf6f7490e2692e228
- SHA512 e09cb0f927def9797bd13aea6beb3e738367c5776325bedadfe05c23bc66dd30b7a0316550f96b4509c17ef07e1b01ccae0f38bfaeff4ca9fbd29872e7377800
- SSDEEP 6144:0cTgav1cdCTuoPbgwmOLJvKRILSFvdFbcEOkCybEaQRXr9HNdvOaty8KRpPUM:0SvO2x9mONvKRILSF/Okx2LIatyD
- TLSH T10EA45C26B7909076C4B78674C8A247AAFBB1BC2127118B8FA39077191F73792BD3570D
- MD5 SHA1 SHA512 SSDEEP TLSH