Malicious PDF — malware analysis report

Static analysis result for SHA-256 54b71b89f9494281…

MALICIOUS

PDF

82.7 KB Created: 2020-11-23 20:18:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1533a2f5e132a8fd45f42c4d2bfeb19f SHA-1: 7858cad82e6c9077049eb4e09af079436db7548f SHA-256: 54b71b89f9494281f1be63499978708fac855e286e0c40d9d1b5ff5ed61045b6
196 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The heuristic 'SE_ADVANCE_FEE_SCAM_LURE' strongly indicates this PDF is designed as an advance-fee fraud. The presence of external links, including one to 'trafftec.ru', suggests an attempt to redirect the user to malicious content or phishing pages. While no scripts were explicitly extracted, the PDF structure and heuristic firings point towards a phishing or scamming attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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://trafftec.ru/strik?utm_term=the+lilith+device
    • https://cdn-cms.f-static.net/uploads/4374024/normal_5f8d373a4d79c.pdf
    • https://jarapitoxedomel.weebly.com/uploads/1/3/1/4/131437170/zujujuxemixoline.pdf
    • https://fategebedabeno.weebly.com/uploads/1/3/4/7/134718848/lanezo_xusuxuguwikati_raroviz.pdf
    • https://dejolezeg.weebly.com/uploads/1/3/2/8/132815968/zejigowijug.pdf
    • https://labajilawuja.weebly.com/uploads/1/3/1/4/131406369/gidanababuti.pdf
    • https://dokakida.weebly.com/uploads/1/3/1/3/131380589/fodogaf.pdf
    • https://rikurifijuse.weebly.com/uploads/1/3/4/6/134681474/kakegibefokow.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://s3.amazonaws.com/wajufifenoxuj/train_simulator_2020_reshade.pdf
    • https://s3.amazonaws.com/tosevud/numuzewawodilufemab.pdf
    • https://uploads.strikinglycdn.com/files/4e69982d-b517-4fac-a0c5-fc938ceb56a5/gekuwuvutomokap.pdf
    • https://uploads.strikinglycdn.com/files/2206c6d7-2ada-4d1f-80e6-2f63de69f747/47794995908.pdf
    • https://s3.amazonaws.com/takateg/84239033020.pdf
    • https://s3.amazonaws.com/lefemijip/3289462065.pdf
    • https://s3.amazonaws.com/mubefula/family_stroke_adams_family.pdf
    • https://s3.amazonaws.com/vatakefojunib/dances_with_wolves.pdf
    • https://s3.amazonaws.com/rerinago/tozovuguvujedozosa.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://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fde6.bin
b0196ddbeecc7cc30aec6d72595e73f4dc4e06418fefcb58d3a2c753d8e88fec		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFDE6 4124 bytes
font_01_sfnt_off00010bf4.bin
2613b8bd57e33832b0833a473c53ae5232f31bf857b76717e5776221fb60db50		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10BF4 10580 bytes
font_02_sfnt_off0001302b.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1302B 4324 bytes

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