MALICIOUS — 4bc8c5f1ae12aca110bfeb19f8aade3553e08024106c24bca48b307d27434133

MALICIOUS — 4bc8c5f1ae12aca110bfeb19f8aade3553e08024106c24bca48b307d27434133 is a office-ooxml sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (76/100). 2 of 55 detection engines flagged it, exhibiting 1 ATT&CK technique.

Identification

• SHA-256: 4bc8c5f1ae12aca110bfeb19f8aade3553e08024106c24bca48b307d27434133
• SHA-1: e864496907172a4c7400989e4d3f42813fbbbd4a
• MD5: 376673e412b3509f2300c0b8c18d1288
• ssdeep: 384:97JZlDxI679CSzq4emkUExvOhIST2PnCBj1FYaDgENQ:T3DW63emkbVOyF/eFx3Q
• TLSH: T12D2BA0DA82BD0815E3C4F722D5753E8DADC404774C3D8BD19A6B40C3AD86247A93906F
• Submitted as: 4bc8c5f1ae12aca110bfeb19f8aade3553e08024106c24bca48b307d27434133
• File type: office-ooxml · Size: 23062 bytes
• Verdict: malicious (76/100)

Detections (2 of 55 engines)

• MalwareAnalyser heuristics (entropy/packer): high-entropy-blob
• Kaspersky (KVRT): HEUR:Trojan.MSOffice.Generic

MITRE ATT&CK

• T1105

Why this verdict

The malicious score of 76/100 is the fusion of 5 weighted signals:

• Kaspersky (KVRT) flagged HEUR:Trojan.MSOffice.Generic (rule HEUR:Trojan.MSOffice.Generic) - engine signal, weight 0.55, confidence 0.85
• Document contains macros/active content: xlm-macro - static signal, weight 0.35, confidence 0.75
• MalwareAnalyser heuristics (entropy/packer) flagged high-entropy-blob (rule high-entropy-blob) - engine signal, weight 0.35, confidence 0.70
• Packing/obfuscation: high-entropy-blob - static signal, weight 0.25, confidence 0.55
• Contacted 12 external host(s) at runtime - network signal, weight 0.12, confidence 0.55

Dynamic analysis (windows)

1219 behavior events · 0 ATT&CK techniques · 21 dropped files.

Runtime network

• www.msftconnecttest.com
• rb.symcd.com
• rb.symcb.com
• inference.location.live.net
• 3.0.0.0.1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.f.f.ip6.arpa
• 252.0.0.224.in-addr.arpa
• 2.0.0.0.1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.f.f.ip6.arpa
• ntp.ubuntu.com
• 250.255.255.239.in-addr.arpa
• http://www.msftconnecttest.com/connecttest.txt
• http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
• http://rb.symcb.com/rb.crl
• 23.40.52.85
• 23.11.37.157
• 20.190.167.65
• 23.33.238.178
• 52.110.12.40 AU · Sydney · AS8075 Microsoft Corporation
• 4.230.171.124 KR · Seoul · AS8075 Microsoft Corporation
• 57.155.101.212 SG · Singapore · AS8075 Microsoft Limited UK
• 23.33.238.100

Dropped files

• root_.cache_dconf_user - 96a296d224f285c67bee93c30f8a309157f0daa35dc5b87e410b78630a09cfc7
• root_.cache_mesa_shader_cache_index - 6d0552c4e71fe85e6cdc7e7745882ea91b382fbc56448f2e9e1c2d77dcf67d81
• root_.config_libreoffice_4_.lock - cd5ddf58483a0e4318dd2648b31c3ec3049621920d956fbfe9fb663227cb9197
• root_.config_libreoffice_4_user_GraphicsRenderTests.log - ca66014b962c5f87639d09e17a2dc07c7d1657c2f71a392b1d9bb67cd3a511d9
• root_.config_libreoffice_4_user_autotext_mytexts.bau - 951c8adf2ef8d3edeadb03b0c4374a2d75cf5fed945eeff259d33aa2e77acf7f
• root_.config_libreoffice_4_user_basic_Standard_Module1.xba - b434faf21386064e2e81af758f307ae8bea72c0cb6c8510d55b1bc1bb38f8612
• root_.config_libreoffice_4_user_basic_Standard_dialog.xlb - 85c83411f1285a0d0d9b511a7ea7dd06d5ac9b97f90d286adaca084212e3fe80
• root_.config_libreoffice_4_user_basic_Standard_script.xlb - 80cb10b100053f6e0b26bb009a2b8ccbdedb761901680500a4736f7afbf1f959
• root_.config_libreoffice_4_user_basic_dialog.xlc - 5b72c4cc5130eccab44cbfb91270befaeaf8ee7ab97cf205ee2abb582fa4a9e5
• root_.config_libreoffice_4_user_config_autotbl.fmt - 713229151490c66f043cb4865147c97458b4f33e4eb5f2bb4133c58cbe77041e
• root_.config_libreoffice_4_user_database_biblio.odb - c3dd4e9008be33cdede3abf822e9b748a201704adf95aad92ab894dd98b3fe85
• root_.config_libreoffice_4_user_database_biblio_biblio.dbf - aefc2bb614c2e307870405e0fd72f4a22cf794c396a73ce0551f18a478e80ed2
• root_.config_libreoffice_4_user_database_biblio_biblio.dbt - 3ab142231d8075fdd02c95a691ddce590e0f81450744cb87ca610fd06d75cac1
• root_.config_libreoffice_4_user_extensions_buildid - 4e80829cd1c13534fecb420763830c6a6fe6d9a8a463cefc817071e313bdc7bc
• root_.config_libreoffice_4_user_extensions_bundled_lastsynchronized - 6b86b273ff34fce19d6b804eff5a3f5747ada4eaa22f1d49c01e52ddb7875b4b

Embedded URLs

• http://www.msftconnecttest.com/connecttest.txt
• http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
• http://rb.symcb.com/rb.crl

Embedded IP addresses

• 4.150.223.100
• 72.145.35.97
• 92.223.78.30
• 57.155.101.212
• 85.210.196.11
• 172.66.2.5
• 52.110.12.40
• 4.230.171.124
• 20.247.184.197
• 135.232.92.137
• 74.179.77.204
• 135.233.45.222

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Analyzed on MalwareAnalyzer by Cyble · Open interactive report