Overview
overview
10Static
static
10nexus-valo...EY.exe
windows7-x64
7nexus-valo...EY.exe
windows10-2004-x64
7nexus-valo...TO.exe
windows7-x64
1nexus-valo...TO.exe
windows10-2004-x64
1nexus-valo...th.dll
windows7-x64
1nexus-valo...th.dll
windows10-2004-x64
1nexus-valo...tk.dll
windows7-x64
8nexus-valo...tk.dll
windows10-2004-x64
1General
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Target
nexus-valo-checker-main.zip
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Size
41.7MB
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Sample
250206-lre3mssrfp
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MD5
e1f9584d8cf103a2ca1c072a6c001c38
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SHA1
6e8a8cf33c133436095dd7efd20043206c9a6d9d
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SHA256
19546d9e6ed5ffee4518d758d28c822bd28a62f7ea31124c5a18e3c11c9d3aed
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SHA512
53e7dab8be09a433393ede0cbe44fe6fc7e22115f0ff7adc75a0d47596c82ffac0612757bdcb143ad56ca1f540081e19ded54fc994040e045825cb0dc5067845
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SSDEEP
786432:en/1rpMdow4jE48KlwRZm6M/JTo6CRGO3SB3i67HV47aT34i:G/1lMdowmE48+wRZVM/qGO3CiMV5
Behavioral task
behavioral1
Sample
nexus-valo-checker-main/AUTHKEY.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
nexus-valo-checker-main/AUTHKEY.exe
Resource
win10v2004-20250129-en
Behavioral task
behavioral3
Sample
nexus-valo-checker-main/Nexus_PTO.exe
Resource
win7-20241010-en
Behavioral task
behavioral4
Sample
nexus-valo-checker-main/Nexus_PTO.exe
Resource
win10v2004-20250129-en
Behavioral task
behavioral5
Sample
nexus-valo-checker-main/PTOAuth.dll
Resource
win7-20240903-en
Behavioral task
behavioral6
Sample
nexus-valo-checker-main/PTOAuth.dll
Resource
win10v2004-20241007-en
Behavioral task
behavioral7
Sample
nexus-valo-checker-main/stk.dll
Resource
win7-20240903-en
Behavioral task
behavioral8
Sample
nexus-valo-checker-main/stk.dll
Resource
win10v2004-20250129-en
Malware Config
Targets
-
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Target
nexus-valo-checker-main/AUTHKEY.exe
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Size
24.1MB
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MD5
10915cf6269d9e936c006c3947efcde3
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SHA1
52101c768151144faf3460eea47fc3c9a8cf4e17
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SHA256
f47adecb91fae9d810102b39ff6be179e73fdb4f1aca13e50aa890a78b11de9c
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SHA512
7b165fbbdeb1e53004f468c54613bc30e6b88f77caf580129831085f9e62e274d594887ef55d5e25a2b1f796a6352437b87f51d6cee826b8c44b7ba24bdd8cc1
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SSDEEP
393216:/qPnLFXlr2ZzvdV14A+QhZw/UDOETgsvcGAhgndpMY3/66/TKmCP/:SPLFXN6zWA+QXuEa8kw/6x
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Loads dropped DLL
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Adds Run key to start application
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Legitimate hosting services abused for malware hosting/C2
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Looks up external IP address via web service
Uses a legitimate IP lookup service to find the infected system's external IP.
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Target
nexus-valo-checker-main/Nexus_PTO.exe
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Size
14.8MB
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MD5
d8c3acf551c8bed882e4ded939a2829f
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SHA1
b43964455628c95bc0ac961a96fb91680d828eed
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SHA256
f43a27b94dcc59b8ec24bc98461d467fd8d694269bccbd0893d1bba77149c097
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SHA512
2dfda1211e53e76607e0d4786a9de3993b9befd14683e862505bc148c18a223be9be4be90dbc129d98517222573fbddda652a20186d1a528c14a6863b21f4b6a
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SSDEEP
393216:18MiRMflXiOsRTH2mtGnqV5atidUdr9VkmscTXtXrq:1BiYXhmtGnqV5REVLTXtrq
Score1/10 -
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Target
nexus-valo-checker-main/PTOAuth.dll
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Size
2.3MB
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MD5
ced7e9cdea3c1dceedab64214c6dcb83
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SHA1
73da7147478f83db810de4680e1e4fad13281a93
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SHA256
4287556856619243ab4546046cea447e2481b2e7a1e7a26855f28d49918bfd87
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SHA512
dee3a60236f044b7bee7baa384db5b9ecaa291d83583fa40cbac561e1419a481901a728d632653c150d5588ed29336fd64473e5ec5dbf11e7ca294c8dd278faf
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SSDEEP
49152:2COdg51mM0knpovqeMWgzQ41R9aMG9rZRikJNyVAuO2HA:2Jq5EkpEqeMbz9m3RZn/n2g
Score1/10 -
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Target
nexus-valo-checker-main/stk.dll
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Size
915KB
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MD5
f1749e13c5e25da26a881aa81c82191e
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SHA1
d7d53c1e8073b28301743174da9d2705107a322c
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SHA256
1a2974a72b8fc9bedb514f6b79dcab5f039852fe39744ec65800fa7bc5f20e09
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SHA512
44f2e60359cc14e0d411541816a664e0886a81450173e3e0132c6988ff715fb1ce6c072d8fbdeb4f6939f00f11f60f9fef39ea54aff198ce9b02d845676c8419
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SSDEEP
24576:rjeya18c0p4jEpY3OLrebUAlvjx7r+vu:O7acA/paUMh+
Score8/10-
Blocklisted process makes network request
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MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Event Triggered Execution
1Netsh Helper DLL
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Event Triggered Execution
1Netsh Helper DLL
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1