Analysis
- max time kernel
149s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20260130-en - resource tags
arch:x64arch:x86image:win10v2004-20260130-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
03/05/2026, 05:44
Behavioral task
behavioral1
Sample
75c221d96a166c92b8556d1df7c4f4d3b06e4a116d62c226e7df2e332d85203a.exe
Resource
win10v2004-20260130-en
windows10-2004-x64
10 signatures
150 seconds
General
- Target 75c221d96a166c92b8556d1df7c4f4d3b06e4a116d62c226e7df2e332d85203a.exe
- Size 271KB
- Sample260503-gfalkab121
- SHA256 75c221d96a166c92b8556d1df7c4f4d3b06e4a116d62c226e7df2e332d85203a
- MD5 37c6893a675b3cb0eedbacfbea65194d
- SHA1 2ff624c0afde1841a412368e8c5cf19bb7b901d9
- SHA512 656ae73c01c4894d9d3a06119b616532cc19992b4f5367eed9ec0211bd35df8bc248004ca05395996e821029d0db0f0af638b980811c47600369dcc8506d7629
- SSDEEP 6144:fl51orRJXlDixHkUXe35rGcEOkCybEaQRXr9HNdvOa:RqXUHkUXe39sOkx2LIa
- TLSH T1F344CF5BF27440B6C49AD678C9935A5AFBF1B815872143CF1320C25A1F737E2AE3A325
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
7/10
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 1984 b209f4e - 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 36 223.5.5.5 688 75c221d96a166c92b8556d1df7c4f4d3b06e4a116d62c226e7df2e332d85203a.exe Destination IP 3 114.114.114.114 688 75c221d96a166c92b8556d1df7c4f4d3b06e4a116d62c226e7df2e332d85203a.exe Destination IP 4 223.5.5.5 688 75c221d96a166c92b8556d1df7c4f4d3b06e4a116d62c226e7df2e332d85203a.exe Destination IP 34 114.114.114.114 688 75c221d96a166c92b8556d1df7c4f4d3b06e4a116d62c226e7df2e332d85203a.exe - Drops file in System32 directory 17 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE b209f4e File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies b209f4e File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content b209f4e File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 b209f4e File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 b209f4e File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\AAD646CB44373074ADE741C38400E7E1 b209f4e File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\AAD646CB44373074ADE741C38400E7E1 b209f4e File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\3EC845F33427F1C99AF855BE8930371C b209f4e File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 b209f4e File created C:\Windows\SysWOW64\b209f4e 75c221d96a166c92b8556d1df7c4f4d3b06e4a116d62c226e7df2e332d85203a.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft b209f4e File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache b209f4e File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData b209f4e File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\3EC845F33427F1C99AF855BE8930371C b209f4e File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 b209f4e File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 b209f4e File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 b209f4e -
resource yara_rule behavioral1/memory/688-0-0x00000000004D0000-0x0000000000559000-memory.dmp upx behavioral1/memory/1984-4-0x0000000000940000-0x00000000009C9000-memory.dmp upx behavioral1/files/0x001a000000024293-3.dat upx behavioral1/memory/688-10-0x00000000004D0000-0x0000000000559000-memory.dmp upx behavioral1/memory/1984-12-0x0000000000940000-0x00000000009C9000-memory.dmp upx behavioral1/memory/688-30-0x00000000004D0000-0x0000000000559000-memory.dmp upx behavioral1/memory/1984-32-0x0000000000940000-0x00000000009C9000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\21f780 b209f4e File opened for modification C:\Windows\bc760 75c221d96a166c92b8556d1df7c4f4d3b06e4a116d62c226e7df2e332d85203a.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 75c221d96a166c92b8556d1df7c4f4d3b06e4a116d62c226e7df2e332d85203a.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language b209f4e - 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:" b209f4e Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" b209f4e Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" b209f4e Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" b209f4e Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" b209f4e Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ b209f4e Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" b209f4e Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing b209f4e Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix b209f4e - Modifies system certificate store 2 TTPs 2 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\1F24C630CDA418EF2069FFAD4FDD5F463A1B69AA b209f4e Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\1F24C630CDA418EF2069FFAD4FDD5F463A1B69AA\Blob = 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 b209f4e - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 1984 b209f4e 1984 b209f4e 1984 b209f4e 1984 b209f4e 1984 b209f4e 1984 b209f4e 1984 b209f4e 1984 b209f4e 688 75c221d96a166c92b8556d1df7c4f4d3b06e4a116d62c226e7df2e332d85203a.exe 688 75c221d96a166c92b8556d1df7c4f4d3b06e4a116d62c226e7df2e332d85203a.exe 688 75c221d96a166c92b8556d1df7c4f4d3b06e4a116d62c226e7df2e332d85203a.exe 688 75c221d96a166c92b8556d1df7c4f4d3b06e4a116d62c226e7df2e332d85203a.exe 688 75c221d96a166c92b8556d1df7c4f4d3b06e4a116d62c226e7df2e332d85203a.exe 688 75c221d96a166c92b8556d1df7c4f4d3b06e4a116d62c226e7df2e332d85203a.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 688 75c221d96a166c92b8556d1df7c4f4d3b06e4a116d62c226e7df2e332d85203a.exe Token: SeTcbPrivilege 688 75c221d96a166c92b8556d1df7c4f4d3b06e4a116d62c226e7df2e332d85203a.exe Token: SeDebugPrivilege 1984 b209f4e Token: SeTcbPrivilege 1984 b209f4e
Processes
-
C:\Users\Admin\AppData\Local\Temp\75c221d96a166c92b8556d1df7c4f4d3b06e4a116d62c226e7df2e332d85203a.exe"C:\Users\Admin\AppData\Local\Temp\75c221d96a166c92b8556d1df7c4f4d3b06e4a116d62c226e7df2e332d85203a.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:688
-
C:\Windows\Syswow64\b209f4eC:\Windows\Syswow64\b209f4e1⤵
- Executes dropped EXE
- Drops file in System32 directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
- Modifies system certificate store
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1984
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\b209f4e
- Size 271KB
- SHA256 b89049c9cf7938043debeb9825dcb78a5bd5311ca0115e3d1640bbd94ca34b29
- MD5 b428dc51368cc8fe18783e448103d3b3
- SHA1 007f4d075d488242e4fe0975039ad274dfd29acf
- SHA512 494fc7259bd607e4f449ae28306e313ae47b17f61c0c348c9e344e7f1e6868ece6333b8752a5bbf297b88125f39487f9ab062beb3292b928766c5c5f969f70ac
- SSDEEP 6144:/l51orRJXlDixHkUXe35rGcEOkCybEaQRXr9HNdvOa:xqXUHkUXe39sOkx2LIa
- TLSH T17F44CF5BF27440B6C49AD678C9935A5AFBF1B815872143CF1320C25A1F737E2AE3A325
- MD5 SHA1 SHA512 SSDEEP TLSH