Analysis
- max time kernel
149s - max time network
150s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
06/05/2026, 19:35
Behavioral task
behavioral1
Sample
b064054598f1d3b301695c2827a534c7216f022c3dec8a65af1d83aede9ae1eb.exe
Resource
win10v2004-20250619-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target b064054598f1d3b301695c2827a534c7216f022c3dec8a65af1d83aede9ae1eb.exe
- Size 1.2MB
- Sample260506-ya4e5adv3q
- SHA256 b064054598f1d3b301695c2827a534c7216f022c3dec8a65af1d83aede9ae1eb
- MD5 0d10dfc5d8d787b8b12f1ee1b7df3bb8
- SHA1 d2b5f74155da3dc17faabd02f086c850359d2d8d
- SHA512 521131f5a4c932d88a863d1c5627f98784d8f09d5446300a64f73e8407cccd08021dc5a2e3ffd6a27690a142eaacde824073abae6584c587b89fb15f19f1c9fe
- SSDEEP 24576:ovO2xJKRw2kOkx2LFRvcUQPxuZ98Es8k3OH3C0rQS:oHHKe2WQX5QZuTtS0rQS
- TLSH T199458C31E641C036D4A70175C6BA4BBFA9787D25032565C7E3D43E6A2FB22D2BA3170E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 4380 4b8b9f28 - 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 7 114.114.114.114 1348 b064054598f1d3b301695c2827a534c7216f022c3dec8a65af1d83aede9ae1eb.exe Destination IP 8 223.5.5.5 1348 b064054598f1d3b301695c2827a534c7216f022c3dec8a65af1d83aede9ae1eb.exe Destination IP 1 114.114.114.114 1348 b064054598f1d3b301695c2827a534c7216f022c3dec8a65af1d83aede9ae1eb.exe Destination IP 2 223.5.5.5 1348 b064054598f1d3b301695c2827a534c7216f022c3dec8a65af1d83aede9ae1eb.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\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 4b8b9f28 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 4b8b9f28 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 4b8b9f28 File created C:\Windows\SysWOW64\4b8b9f28 b064054598f1d3b301695c2827a534c7216f022c3dec8a65af1d83aede9ae1eb.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 4b8b9f28 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 4b8b9f28 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 4b8b9f28 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 4b8b9f28 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 4b8b9f28 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 4b8b9f28 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 4b8b9f28 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 4b8b9f28 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 4b8b9f28 -
resource yara_rule behavioral2/memory/1348-0-0x0000000000260000-0x00000000002EC000-memory.dmp upx behavioral2/files/0x000900000000d3db-2.dat upx behavioral2/memory/4380-4-0x0000000000560000-0x00000000005EC000-memory.dmp upx behavioral2/memory/1348-10-0x0000000000260000-0x00000000002EC000-memory.dmp upx behavioral2/memory/4380-11-0x0000000000560000-0x00000000005EC000-memory.dmp upx behavioral2/memory/4380-30-0x0000000000560000-0x00000000005EC000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\4afcb8 4b8b9f28 File opened for modification C:\Windows\171408 b064054598f1d3b301695c2827a534c7216f022c3dec8a65af1d83aede9ae1eb.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 b064054598f1d3b301695c2827a534c7216f022c3dec8a65af1d83aede9ae1eb.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 4b8b9f28 - 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 4b8b9f28 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" 4b8b9f28 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 4b8b9f28 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 4b8b9f28 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 4b8b9f28 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 4b8b9f28 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 4b8b9f28 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 4b8b9f28 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 4b8b9f28 - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 4380 4b8b9f28 4380 4b8b9f28 4380 4b8b9f28 4380 4b8b9f28 4380 4b8b9f28 4380 4b8b9f28 4380 4b8b9f28 4380 4b8b9f28 1348 b064054598f1d3b301695c2827a534c7216f022c3dec8a65af1d83aede9ae1eb.exe 1348 b064054598f1d3b301695c2827a534c7216f022c3dec8a65af1d83aede9ae1eb.exe 1348 b064054598f1d3b301695c2827a534c7216f022c3dec8a65af1d83aede9ae1eb.exe 1348 b064054598f1d3b301695c2827a534c7216f022c3dec8a65af1d83aede9ae1eb.exe 1348 b064054598f1d3b301695c2827a534c7216f022c3dec8a65af1d83aede9ae1eb.exe 1348 b064054598f1d3b301695c2827a534c7216f022c3dec8a65af1d83aede9ae1eb.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 1348 b064054598f1d3b301695c2827a534c7216f022c3dec8a65af1d83aede9ae1eb.exe Token: SeTcbPrivilege 1348 b064054598f1d3b301695c2827a534c7216f022c3dec8a65af1d83aede9ae1eb.exe Token: SeDebugPrivilege 4380 4b8b9f28 Token: SeTcbPrivilege 4380 4b8b9f28
Processes
-
C:\Users\Admin\AppData\Local\Temp\b064054598f1d3b301695c2827a534c7216f022c3dec8a65af1d83aede9ae1eb.exe"C:\Users\Admin\AppData\Local\Temp\b064054598f1d3b301695c2827a534c7216f022c3dec8a65af1d83aede9ae1eb.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:1348
-
C:\Windows\Syswow64\4b8b9f28C:\Windows\Syswow64\4b8b9f281⤵
- 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:4380
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\4b8b9f28
- Size 1.2MB
- SHA256 ed7a049cb2e39ffa10054045a391f5541a71311da7e0f5df5bd7db6dc448d6d8
- MD5 75d004fcc17521d9e880e901274e8f27
- SHA1 67172587c48531da2d59d3f37eb92d7845c0ecb0
- SHA512 0076392757d8b265393027417641ccc1e2c14cc0d4f0d2449dec07b8b731cf94cd9e130c961be97974bb5e73a0cabfd2d70a0c1aeee5b9ee3478ea58d4851b2f
- SSDEEP 24576:5vO2xJKRw2kOkx2LFRvcUQPxuZ98Es8k3OH3C0rQS:5HHKe2WQX5QZuTtS0rQS
- TLSH T1DA458C31E641C036D4A70175C6BA4BBFA9787D25032565C7E3D43E6A2FB22D2BA3170E
- MD5 SHA1 SHA512 SSDEEP TLSH