MALICIOUS — normal_5fa49e69e41d8.pdf

MALICIOUS — normal_5fa49e69e41d8.pdf is a pdf sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (72/100). 3 of 53 detection engines flagged it, exhibiting 2 ATT&CK techniques.

Identification

• SHA-256: 175ecdd215782ed00ed21e7bc6dde5f4e3a39a5ac14e528fd9e23baed05ae63d
• SHA-1: c87049d3d5b6a554ce0dea4ca367ca337b2eb159
• MD5: 0fd3d1e9abf7c70231dbd182f2b64111
• ssdeep: 768:2LgGzpDrcBWJ1pNBZ4Or2S71+q2AlJ9QvMGMVL86kBvZY7OLUX3j1I/z:bGFM+T4OF2Aai86iZY7OLUD1Ez
• TLSH: T157319EF350EBEC883A8ABB075EAA14491045D74CB136A730598C7B3DD4BCAEC6E50960
• Submitted as: normal_5fa49e69e41d8.pdf
• File type: pdf · Size: 40963 bytes
• Verdict: malicious (72/100)

Detections (3 of 53 engines)

• MalwareAnalyser heuristics (entropy/packer): high-entropy-blob
• Emsisoft (Emergency Kit): PDF.Spam.Heur.1
• Kaspersky (KVRT): HEUR:Trojan.Script.Generic

MITRE ATT&CK

• T1105
• T1566.002

Why this verdict

The malicious score of 72/100 is the fusion of 6 weighted signals:

• Contacted 16 external host(s) at runtime (4 HTTP) - network signal, weight 0.40, confidence 0.80
• Embedded link rated suspicious by URL analysis: https://uploads.strikinglycdn.com/files/09456316-d90e-442f-b5f6-08e773a992d7/biology_evolution_study_guide_answers.pdf - network signal, weight 0.40, confidence 0.60
• Embedded network infrastructure: https://traffset.ru/123?keyword=caution+signs+images+printable, https://uploads.strikinglycdn.com/files/09456316-d90e-442f-b5f6-08e773a992d7/biology_evolution_study_guide_answers.pdf, https://rawekawus.weebly.com/uploads/1/3/4/4/134467784/vepigoporolowi-bakokefus-bawemufememug.pdf - static signal, weight 0.35, confidence 0.60
• Document active content: uri-action - static signal, weight 0.30, confidence 0.60
• Packing/obfuscation: high-entropy-blob - static signal, weight 0.25, confidence 0.55
• Extracted generic config (6 C2) (generic/advisory) - engine signal, weight 0.15, confidence 0.30

Dynamic analysis (windows)

9588 behavior events · 0 ATT&CK techniques · 3 dropped files.

Runtime network

• www.msftconnecttest.com
• rb.symcd.com
• rb.symcb.com
• inference.location.live.net
• to-do.office.com
• staging.to-do.officeppe.com
• teams.cloud.microsoft
• outlook.office.com
• outlook.office365.com
• outlook.cloud.microsoft
• 250.255.255.239.in-addr.arpa
• desktop-hsgcbep
• client.wns.windows.com
• 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
• 252.0.0.224.in-addr.arpa
• 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
• b.f.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.f.f.ip6.arpa
• ntp.ubuntu.com
• http://www.msftconnecttest.com/connecttest.txt
• http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D

Dropped files

• C:\Users\analyst\AppData\Local\SumatraPDF\sumatrapdfcache\2635349a1c4ef426e2c2f05338717d38.png - 229a52fc970b99167553c9fbbafd396bb6e195deea62326801fabcdb7cbfed0c
• C:\Users\analyst\AppData\Local\SumatraPDF\SumatraPDF-settings.txt - c68fdb819d67ae6a9e11d7af4042f7d04415858d130261f4573c0cc5929f0995
• root_.cache_dconf_user - 96a296d224f285c67bee93c30f8a309157f0daa35dc5b87e410b78630a09cfc7

Embedded URLs

• https://traffset.ru/123?keyword=caution+signs+images+printable
• https://s3.amazonaws.com/bevekizadoxuj/assigning_oxidation_numbers_rules.pdf
• https://uploads.strikinglycdn.com/files/09456316-d90e-442f-b5f6-08e773a992d7/biology_evolution_study_guide_answers.pdf
• https://rawekawus.weebly.com/uploads/1/3/4/4/134467784/vepigoporolowi-bakokefus-bawemufememug.pdf
• https://uploads.strikinglycdn.com/files/30675402-aa99-4473-b3bf-45e441c3a168/muzowavu.pdf
• https://s3.amazonaws.com/pugomonapoxuxe/war_wings_apk_free_download.pdf
• https://s3.amazonaws.com/varoximu/15263858167.pdf
• https://s3.amazonaws.com/rimepusox/24013968026.pdf
• https://s3.amazonaws.com/jinabom/39444846781.pdf
• https://uploads.strikinglycdn.com/files/4cbd1812-3929-4fa1-a5f7-94d98c36cdf8/iron_wood_planks_my_time_at_portia.pdf
• https://uploads.strikinglycdn.com/files/82bd3fa9-d805-4afe-81d5-baaae6cfa091/fevidulagumazoxesupumusiw.pdf
• https://filojekejo.weebly.com/uploads/1/3/4/4/134446685/a42faee70d24.pdf
• https://uploads.strikinglycdn.com/files/ac945084-d1e4-42c3-9d1a-b731f927a999/zowerarejasavinun.pdf
• https://s3.amazonaws.com/wilugugo/risibadujexokusoloxatek.pdf
• https://s3.amazonaws.com/toguvaju/beowulf_poem_modern_english.pdf
• http://www.w3.org/1999/02/22-rdf-syntax-ns#
• http://purl.org/dc/elements/1.1/
• http://ns.adobe.com/pdf/1.3/
• http://ns.adobe.com/xap/1.0/
• http://ns.adobe.com/xap/1.0/mm/
• http://ns.adobe.com/xap/1.0/rights/
• http://www.msftconnecttest.com/connecttest.txt
• http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
• http://rb.symcb.com/rb.crl
• http://203.26.79.13/filestreamingservice//files/753bb2df-a166-494f-aa7d-5678b1ef0c56/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com

Embedded domains

• traffset.ru
• s3.amazonaws.com
• uploads.strikinglycdn.com
• rawekawus.weebly.com
• filojekejo.weebly.com
• www.w3.org
• purl.org
• ns.adobe.com

Embedded IP addresses

• 20.184.175.11
• 74.178.240.61
• 48.211.4.16
• 52.110.12.28
• 52.110.12.20
• 4.230.171.124
• 20.165.94.63
• 52.168.117.170
• 20.76.201.171
• 52.123.129.14
• 40.84.97.4
• 203.26.79.13
• 20.42.73.25
• 172.178.240.163
• 52.123.252.194
• 92.223.78.30

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Analyzed on MalwareAnalyzer by Cyble · Open interactive report