PDF malware analysis — malicious · e3a1f11d20c5feba

MALICIOUS

PDF

75.4 KB Created: 2021-02-22 09:15:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25

MD5: 3f61f7b2eb19b01c8acc516c1abedcb9 SHA-1: 5a50e3fa1af3c0f5441477401d4dcf2d1015e5b9 SHA-256: e3a1f11d20c5feba68f53ea75d915ac767ca2088421ef6414b84ac0f0fadd48c

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

Nyx PDF Classifier malicious score 0.9998

Heuristics 4

ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
External URI info PDF_URI

PDF contains an external URL action
Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL

The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
Embedded URL info EMBEDDED_URL

One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
URL https://bologen.ru/123?utm_term=good+science+fiction+books+for+7th+graders PDF link annotation
- https://cdn-cms.f-static.net/uploads/4427267/normal_5fe9ffdde20b6.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4461766/normal_5ffa8a8c0b0dd.pdfIn PDF document text
- https://cdn.sqhk.co/mokabawimav/jgagf0b/pigibituw.pdfIn PDF document text
- https://cdn.sqhk.co/fewoxenovof/iaNQNid/archery_target_block_near_me.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4406787/normal_600c477c5423b.pdfIn PDF document text
- http://mnogolidov.xyz/lionel_prewar_repair_manualdaw97.pdfIn PDF document text
- https://cdn.sqhk.co/dukoredod/jjgfigc/xabanazixibifedorevesum.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4368240/normal_60300d98b1d78.pdfIn PDF document text
- https://cdn.sqhk.co/vetelojid/iKNjdpn/wild_blood_apk_data_revdl.pdfIn PDF document text
- https://cdn.sqhk.co/rilowikapaz/3dXjejh/xelubirumanizax.pdfIn PDF document text
- https://cdn.sqhk.co/fudamozomeb/M2hhdih/idle_tap_builders_mod_apk.pdfIn PDF document text
- https://cdn.sqhk.co/zubuwebofe/bigAFC8/army_fitness_plan.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/bejeseja/how_are_you_feeling_funny_answer.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000e8a4.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE8A4	5564 bytes
SHA-256: `8522988baebaeb23b4fda1278f1e1f276afa91da8a61e680065dc64cef6abcd2`
`font_01_sfnt_off0000fb96.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFB96	11016 bytes
SHA-256: `3900c5db6e5496bccfa88ee5376ff8faf66de5a1c185d3f9dd72c25cc11980f5`

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