General
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Target
30bc10954a94c68ba56d3e805861693b0180e03280f310a1a3e0015a26078cf2
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Size
781KB
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Sample
230618-na27ysga8t
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MD5
a4fa625cd869da2c61391726f87712d5
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SHA1
6ce47759a42f9837bd8a11db3b2c1830df2c30d3
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SHA256
30bc10954a94c68ba56d3e805861693b0180e03280f310a1a3e0015a26078cf2
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SHA512
3cd854bb201b48c31df4f14d184570ca867f7fa9f5e5fd63f82a0a8307ca34e85d3681f8777fa4c29c8fcbfe35556c068bb6d2d138efba052a84e576dd1731b7
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SSDEEP
12288:Ud8RAnO05qcjZdT+qXM1zgH0yqRCG4kcw9dKK8Sb8SB/xIPD:UFrD+qXM1ByqRZUw9dF8E8StxIP
Static task
static1
Behavioral task
behavioral1
Sample
30bc10954a94c68ba56d3e805861693b0180e03280f310a1a3e0015a26078cf2.exe
Resource
win10v2004-20230220-en
Malware Config
Extracted
djvu
http://zexeq.com/raud/get.php
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extension
.ahui
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offline_id
vPWUuYIO6Lzy2cGt8zL7FERKTf4QMBPjn7F005t1
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payload_url
http://colisumy.com/dl/build2.exe
http://zexeq.com/files/1/build3.exe
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ransomnote
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Extracted
vidar
4.3
a129a8292a021d62796bfced1018aa1f
https://steamcommunity.com/profiles/76561199514261168
https://t.me/kamaprimo
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profile_id_v2
a129a8292a021d62796bfced1018aa1f
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user_agent
Mozilla/5.0 (Linux; U; Tizen 2.0; en-us) AppleWebKit/537.1 (KHTML, like Gecko) Mobile TizenBrowser/2.0
Targets
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Target
30bc10954a94c68ba56d3e805861693b0180e03280f310a1a3e0015a26078cf2
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Size
781KB
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MD5
a4fa625cd869da2c61391726f87712d5
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SHA1
6ce47759a42f9837bd8a11db3b2c1830df2c30d3
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SHA256
30bc10954a94c68ba56d3e805861693b0180e03280f310a1a3e0015a26078cf2
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SHA512
3cd854bb201b48c31df4f14d184570ca867f7fa9f5e5fd63f82a0a8307ca34e85d3681f8777fa4c29c8fcbfe35556c068bb6d2d138efba052a84e576dd1731b7
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SSDEEP
12288:Ud8RAnO05qcjZdT+qXM1zgH0yqRCG4kcw9dKK8Sb8SB/xIPD:UFrD+qXM1ByqRZUw9dF8E8StxIP
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Detected Djvu ransomware
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Downloads MZ/PE file
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Executes dropped EXE
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Loads dropped DLL
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Modifies file permissions
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Accesses cryptocurrency files/wallets, possible credential harvesting
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Adds Run key to start application
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Checks installed software on the system
Looks up Uninstall key entries in the registry to enumerate software on the system.
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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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Suspicious use of SetThreadContext
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