Overview
overview
10Static
static
3fud crypto...AX.dll
windows7-x64
7fud crypto...AX.dll
windows10-2004-x64
7fud crypto...en.dll
windows7-x64
1fud crypto...en.dll
windows10-2004-x64
1fud crypto...sg.dll
windows7-x64
1fud crypto...sg.dll
windows10-2004-x64
1fud crypto...to.exe
windows7-x64
10fud crypto...to.exe
windows10-2004-x64
10General
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Target
fudcrypto.zip
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Size
212KB
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Sample
241121-b9halsslhm
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MD5
8989cf7b833dc53bafc8ec626c3c13d8
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SHA1
f5bbc5d9eb758a286de576bfb7b08e79d0bd7acb
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SHA256
d074441c881b5ba2b3f238a730edbb942b0dfb97114e1a06ebd4872282a654ef
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SHA512
7b373981cf06727207b8177aced9f989270a94635737cc6dbc27c041a3db5559df17987342bcc3d1d3ae8e2770065e27d9eb2c2eb3f92b30f8890a933b03da1e
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SSDEEP
6144:B7/IelIkZgzD3ysBmPXjifL7JPkVu0iGty:S6LgzD3oXk7FYJty
Static task
static1
Behavioral task
behavioral1
Sample
fud crypto/AUTHZAX.dll
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
fud crypto/AUTHZAX.dll
Resource
win10v2004-20241007-en
Behavioral task
behavioral3
Sample
fud crypto/BCSAutogen.dll
Resource
win7-20240708-en
Behavioral task
behavioral4
Sample
fud crypto/BCSAutogen.dll
Resource
win10v2004-20241007-en
Behavioral task
behavioral5
Sample
fud crypto/BCSClient.Msg.dll
Resource
win7-20240903-en
Behavioral task
behavioral6
Sample
fud crypto/BCSClient.Msg.dll
Resource
win10v2004-20241007-en
Behavioral task
behavioral7
Sample
fud crypto/fudcrypto.exe
Resource
win7-20241010-en
Behavioral task
behavioral8
Sample
fud crypto/fudcrypto.exe
Resource
win10v2004-20241007-en
Malware Config
Extracted
xworm
5.0
104.234.114.133:1188
cbhMMjEG3bxpp43T
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Install_directory
%Temp%
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install_file
system.exe
Targets
-
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Target
fud crypto/AUTHZAX.DLL
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Size
67KB
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MD5
6d7aaaadf2bb5a485c9af58f73641379
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SHA1
0cf59ade584b41a987cd256172633d5f78bdd64d
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SHA256
21bd2da73c0fd41e35999b01e695e8187741812a138494ad4b2d3c4e5241937d
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SHA512
ce97970c9cd42944c4d08438962297e3215595254776db6d732298984ccd9ee8778ec83b5f39d229d89b6fc4c0d49647a78120fce0acc03fa3bb60ea91cfd6b0
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SSDEEP
768:hV2w7WuYlsz1Zha3S0EJaKZf3VcvB/2AgbfViz7/TFFGVOucKfsgx9e3PlYZKO+Q:mwJYKs8XMTf7/TX6e3PYKO+oU795Y
Score7/10-
Event Triggered Execution: Component Object Model Hijacking
Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.
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Target
fud crypto/BCSAutogen.dll
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Size
48KB
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MD5
16e35e8821dc8d90348f274efa941792
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SHA1
698599ee94bf4e4c271e989699e288bbd5fc31e3
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SHA256
c37325c2ce7803f93033090a477df7a8588d5a1cdef6cc0cea44e299bf8da989
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SHA512
879dd4c8cd4bdf4ffbbb6affd259ff47bf4077e6686808a91b10fc0fdb234139dc3ed69e40ce3ca31f0b0bb1d7ea940fd0b6c0317e0865883eb2283c50abfdc9
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SSDEEP
768:OmA/lY8mNiYiVvpT/Ix7Y40DX/AdFepp83LSw2eAOswwbz64cROMi2jpv:mlYH6vdw0/AS+WeAOsfbz64g595
Score1/10 -
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Target
fud crypto/BCSClient.Msg.dll
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Size
38KB
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MD5
5cb87afc5f4c9c46819d26d8fa3f5c44
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SHA1
706c5a662a7dd76cf5ba832fba1835528931d863
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SHA256
49871714d54dc38e91777cfb4cdc9117cc7b22693db054851b1992202ba4b7e1
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SHA512
eadca1a9437793b4d4fd6eeeab247051b0fd594d94b990d3f7b0328e82bab62282d4d2e93b83e68d0638b6587db7eefd9b87bc2331e05f236e9426e0954889f6
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SSDEEP
384:uTKH7lynP81JsaRSJt/KQocMIq8MffHI3rbZKpUMFLXci2jpv3q:uTg7eP81Kast/KzHABuZMi2jpv6
Score1/10 -
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Target
fud crypto/fudcrypto.exe
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Size
212KB
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MD5
eea17ac368bc01f9f8a3e0103cf5b6e6
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SHA1
d4df74f888d9025497c9e4b418c65cfa2c0ab2c0
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SHA256
de1d872fa35b4ec1a843db9c63fc7e4590fd3b7b250ab5c6a492630ab68b5886
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SHA512
cf297ea8ec540354a22fd046d34f6fc93e74bfe474e4729531263180e4cb35af48c0b6614f5a88c72f0bf767890109eba13c8eca3c9f1f6abaffe7cacabaaccf
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SSDEEP
3072:Fm18FOY1Y10lDPANA8nL8U0TaxzKJltDM7t7aAwA9u7m0Vuth4R1:cEDoTnL8hDY7JPCVu0
Score10/10-
Detect Xworm Payload
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Xworm family
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Executes dropped EXE
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Adds Run key to start application
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MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Event Triggered Execution
1Component Object Model Hijacking
1