Analysis
- max time kernel
149s - max time network
149s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-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
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 4812 4c6317cb - 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 14 114.114.114.114 4408 75c221d96a166c92b8556d1df7c4f4d3b06e4a116d62c226e7df2e332d85203a.exe Destination IP 15 223.5.5.5 4408 75c221d96a166c92b8556d1df7c4f4d3b06e4a116d62c226e7df2e332d85203a.exe Destination IP 1 114.114.114.114 4408 75c221d96a166c92b8556d1df7c4f4d3b06e4a116d62c226e7df2e332d85203a.exe Destination IP 2 223.5.5.5 4408 75c221d96a166c92b8556d1df7c4f4d3b06e4a116d62c226e7df2e332d85203a.exe - Drops file in System32 directory 15 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 4c6317cb File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 4c6317cb File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 4c6317cb File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 4c6317cb File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 4c6317cb File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 4c6317cb File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 4c6317cb File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 4c6317cb File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 4c6317cb File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 4c6317cb File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 4c6317cb File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 4c6317cb File created C:\Windows\SysWOW64\4c6317cb 75c221d96a166c92b8556d1df7c4f4d3b06e4a116d62c226e7df2e332d85203a.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 4c6317cb File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 4c6317cb -
resource yara_rule behavioral2/memory/4408-0-0x00000000009E0000-0x0000000000A69000-memory.dmp upx behavioral2/files/0x002000000002b101-2.dat upx behavioral2/memory/4812-3-0x0000000000D90000-0x0000000000E19000-memory.dmp upx behavioral2/memory/4408-18-0x00000000009E0000-0x0000000000A69000-memory.dmp upx behavioral2/memory/4812-20-0x0000000000D90000-0x0000000000E19000-memory.dmp upx behavioral2/memory/4812-24-0x0000000000D90000-0x0000000000E19000-memory.dmp upx behavioral2/memory/4408-32-0x00000000009E0000-0x0000000000A69000-memory.dmp upx behavioral2/memory/4812-33-0x0000000000D90000-0x0000000000E19000-memory.dmp upx behavioral2/memory/4408-39-0x00000000009E0000-0x0000000000A69000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\526218 4c6317cb File opened for modification C:\Windows\4b7770 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 4c6317cb - Modifies data under HKEY_USERS 9 IoCs
description ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 4c6317cb Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 4c6317cb Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 4c6317cb Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 4c6317cb Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 4c6317cb Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 4c6317cb Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix 4c6317cb Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" 4c6317cb Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 4c6317cb - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 4812 4c6317cb 4812 4c6317cb 4812 4c6317cb 4812 4c6317cb 4812 4c6317cb 4812 4c6317cb 4812 4c6317cb 4812 4c6317cb 4408 75c221d96a166c92b8556d1df7c4f4d3b06e4a116d62c226e7df2e332d85203a.exe 4408 75c221d96a166c92b8556d1df7c4f4d3b06e4a116d62c226e7df2e332d85203a.exe 4408 75c221d96a166c92b8556d1df7c4f4d3b06e4a116d62c226e7df2e332d85203a.exe 4408 75c221d96a166c92b8556d1df7c4f4d3b06e4a116d62c226e7df2e332d85203a.exe 4408 75c221d96a166c92b8556d1df7c4f4d3b06e4a116d62c226e7df2e332d85203a.exe 4408 75c221d96a166c92b8556d1df7c4f4d3b06e4a116d62c226e7df2e332d85203a.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 4408 75c221d96a166c92b8556d1df7c4f4d3b06e4a116d62c226e7df2e332d85203a.exe Token: SeTcbPrivilege 4408 75c221d96a166c92b8556d1df7c4f4d3b06e4a116d62c226e7df2e332d85203a.exe Token: SeDebugPrivilege 4812 4c6317cb Token: SeTcbPrivilege 4812 4c6317cb
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:4408
-
C:\Windows\Syswow64\4c6317cbC:\Windows\Syswow64\4c6317cb1⤵
- 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:4812
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\4c6317cb
- Size 271KB
- SHA256 0f5fa33be6461a4d93f68ff6647ef8ae75214b681f13ee1ef83ab2bfeec1e88d
- MD5 86d513ec80e98a9b6b91c520a075c65b
- SHA1 1a2f93c9846ce15b4c57d894fa4857e9c77c578c
- SHA512 a2c5bdeec12aa052be630f21dfdbecee83e78e18b803ee729270a53613f8e7c1ada8084de4cb363877fd61c87362eed1ff3aa1030df0a61a1453759f753f16f2
- SSDEEP 6144:Hl51orRJXlDixHkUXe35rGcEOkCybEaQRXr9HNdvOa:pqXUHkUXe39sOkx2LIa
- TLSH T1E844CF5BF27440B6C49AD678C9935A5AFBF1B815872143CF1320C25A1F737E2AE3A325
- MD5 SHA1 SHA512 SSDEEP TLSH