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Analysis
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max time kernel
150s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
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submitted
27/12/2024, 12:53 UTC
General
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Target
FpsOptimizer_ByKartavik.exe
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Size
93KB
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MD5
0db33230bc1e881b68a31799335b53d9
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SHA1
f9f8eb1b71192000916de686b76c253acd8df57d
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SHA256
175698d488c8b8ec03b4647a3e183be501424b2cf353ae1edb1cdc16b7f8cb3f
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SHA512
e66d40aaca03d9302df5cb1cd5ed13b63fde98fd5b063d32c84e222e1eebd3b96cfb107010bf0ea2d04466b190d2f0a248ce018528948531d78c7fb58d176f16
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SSDEEP
768:YY3HepD9O/pBcxYsbae6GIXb9pDX2b9zPL0OXLeuXxrjEtCdnl2pi1Rz4Rk3wFse:neLOx6baIa9RIj00ljEwzGi1dDODpgS
Malware Config
Signatures
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Modifies Windows Firewall 2 TTPs 1 IoCs
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
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Drops startup file 6 IoCs
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Executes dropped EXE 1 IoCs
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Legitimate hosting services abused for malware hosting/C2 1 TTPs 1 IoCs
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Drops autorun.inf file 1 TTPs 4 IoCs
Malware can abuse Windows Autorun to spread further via attached volumes.
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Drops file in System32 directory 2 IoCs
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Drops file in Program Files directory 2 IoCs
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs
Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.
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System Location Discovery: System Language Discovery 1 TTPs 3 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
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Suspicious behavior: EnumeratesProcesses 64 IoCs
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Suspicious behavior: GetForegroundWindowSpam 1 IoCs
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Suspicious use of AdjustPrivilegeToken 37 IoCs
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Suspicious use of WriteProcessMemory 6 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\FpsOptimizer_ByKartavik.exe"C:\Users\Admin\AppData\Local\Temp\FpsOptimizer_ByKartavik.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\server.exe"C:\Users\Admin\AppData\Local\Temp\server.exe"2⤵
- Drops startup file
- Executes dropped EXE
- Drops autorun.inf file
- Drops file in System32 directory
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\netsh.exenetsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE3⤵
- Modifies Windows Firewall
- Event Triggered Execution: Netsh Helper DLL
- System Location Discovery: System Language Discovery
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Network
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DNS209.205.72.20.in-addr.arpaRemote address:8.8.8.8:53Request209.205.72.20.in-addr.arpaIN PTRResponse -
DNS83.210.23.2.in-addr.arpaRemote address:8.8.8.8:53Request83.210.23.2.in-addr.arpaIN PTRResponse83.210.23.2.in-addr.arpaIN PTRa2-23-210-83deploystaticakamaitechnologiescom
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DNS67.31.126.40.in-addr.arpaRemote address:8.8.8.8:53Request67.31.126.40.in-addr.arpaIN PTRResponse
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DNS95.221.229.192.in-addr.arpaRemote address:8.8.8.8:53Request95.221.229.192.in-addr.arpaIN PTRResponse
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DNS4.tcp.eu.ngrok.ioRemote address:8.8.8.8:53Request4.tcp.eu.ngrok.ioIN AResponse4.tcp.eu.ngrok.ioIN A3.121.139.82
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DNS82.139.121.3.in-addr.arpaRemote address:8.8.8.8:53Request82.139.121.3.in-addr.arpaIN PTRResponse82.139.121.3.in-addr.arpaIN PTRec2-3-121-139-82 eu-central-1compute amazonawscom
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DNS217.106.137.52.in-addr.arpaRemote address:8.8.8.8:53Request217.106.137.52.in-addr.arpaIN PTRResponse
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DNS58.55.71.13.in-addr.arpaRemote address:8.8.8.8:53Request58.55.71.13.in-addr.arpaIN PTRResponse
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DNS97.17.167.52.in-addr.arpaRemote address:8.8.8.8:53Request97.17.167.52.in-addr.arpaIN PTRResponse
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DNS212.20.149.52.in-addr.arpaRemote address:8.8.8.8:53Request212.20.149.52.in-addr.arpaIN PTRResponse
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DNS241.42.69.40.in-addr.arpaRemote address:8.8.8.8:53Request241.42.69.40.in-addr.arpaIN PTRResponse
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DNS172.214.232.199.in-addr.arpaRemote address:8.8.8.8:53Request172.214.232.199.in-addr.arpaIN PTRResponse
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DNS88.210.23.2.in-addr.arpaRemote address:8.8.8.8:53Request88.210.23.2.in-addr.arpaIN PTRResponse88.210.23.2.in-addr.arpaIN PTRa2-23-210-88deploystaticakamaitechnologiescom
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DNS31.243.111.52.in-addr.arpaRemote address:8.8.8.8:53Request31.243.111.52.in-addr.arpaIN PTRResponse
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3.121.139.82:189524.tcp.eu.ngrok.io
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8.8.8.8:53209.205.72.20.in-addr.arpadns
DNS Request
209.205.72.20.in-addr.arpa
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8.8.8.8:5383.210.23.2.in-addr.arpadns
DNS Request
83.210.23.2.in-addr.arpa
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8.8.8.8:5367.31.126.40.in-addr.arpadns
DNS Request
67.31.126.40.in-addr.arpa
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8.8.8.8:5395.221.229.192.in-addr.arpadns
DNS Request
95.221.229.192.in-addr.arpa
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8.8.8.8:534.tcp.eu.ngrok.iodns
DNS Request
4.tcp.eu.ngrok.io
DNS Response
3.121.139.82
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8.8.8.8:5382.139.121.3.in-addr.arpadns
DNS Request
82.139.121.3.in-addr.arpa
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8.8.8.8:53217.106.137.52.in-addr.arpadns
DNS Request
217.106.137.52.in-addr.arpa
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8.8.8.8:5358.55.71.13.in-addr.arpadns
DNS Request
58.55.71.13.in-addr.arpa
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8.8.8.8:5397.17.167.52.in-addr.arpadns
DNS Request
97.17.167.52.in-addr.arpa
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8.8.8.8:53212.20.149.52.in-addr.arpadns
DNS Request
212.20.149.52.in-addr.arpa
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8.8.8.8:53241.42.69.40.in-addr.arpadns
DNS Request
241.42.69.40.in-addr.arpa
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8.8.8.8:53172.214.232.199.in-addr.arpadns
DNS Request
172.214.232.199.in-addr.arpa
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8.8.8.8:5388.210.23.2.in-addr.arpadns
DNS Request
88.210.23.2.in-addr.arpa
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8.8.8.8:5331.243.111.52.in-addr.arpadns
DNS Request
31.243.111.52.in-addr.arpa
MITRE ATT&CK Enterprise v15
Persistence
Create or Modify System Process
1Windows Service
1Event Triggered Execution
1Netsh Helper DLL
1Privilege Escalation
Create or Modify System Process
1Windows Service
1Event Triggered Execution
1Netsh Helper DLL
1Replay Monitor
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Downloads
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Filesize
93KB
MD50db33230bc1e881b68a31799335b53d9
SHA1f9f8eb1b71192000916de686b76c253acd8df57d
SHA256175698d488c8b8ec03b4647a3e183be501424b2cf353ae1edb1cdc16b7f8cb3f
SHA512e66d40aaca03d9302df5cb1cd5ed13b63fde98fd5b063d32c84e222e1eebd3b96cfb107010bf0ea2d04466b190d2f0a248ce018528948531d78c7fb58d176f16
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Filesize
5B
MD5c60feebd511c87b86dea130692995a0f
SHA1d64447a8b3d8949cab5a1f8d168f7c6fee6b6a0a
SHA256632994320c04707e7ef564b3e983a694170561659552a24dfe14a922dcf0f511
SHA512bf03fbf3329c6f7a21ecd620319ef1a6f676b22a27afd24aab546483c3fe5f6eee7bbcfdc14c5f6626957f2b96519bdd21aaea45d74a80253fa4220c8c12df7c
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Filesize
5.7MB
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Filesize
5.7MB
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Filesize
5.7MB
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Filesize
5.7MB
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Filesize
5.7MB
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Filesize
4KB
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Filesize
5.7MB
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Filesize
5.7MB
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Filesize
5.7MB