Malicious PDF — malware analysis report

Static analysis result for SHA-256 8b0ea0c74c89e5c5…

MALICIOUS

PDF

34.1 KB Created: 2020-05-17 23:26:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-09-04
MD5: 90fbc47b224e217e142ff1df23d45048 SHA-1: de45551885b9f63e88ddc583c5574ea76fedfd0f SHA-256: 8b0ea0c74c89e5c56cc051d3cb0976876a906d16e7647a80d76bda390ca2b390
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious File

The PDF document contains a large number of external links, many of which point to similarly structured URLs on different domains. This pattern is indicative of a link farm or SEO spam campaign, designed to drive traffic to a network of sites. The document body contains text related to 'Lollipop call pro apk free', suggesting a lure for users searching for such software. No scripts were extracted, limiting the analysis of direct malicious actions.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 4

  • 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.
  • 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 http://tangentesonora.com/uploads/1/3/0/7/130739046/130739046.html#lollipop+call+pro+apk+free PDF link annotation
    • http://treeremovalakron.com/uploads/1/3/1/4/131407445/dd93d.pdfIn PDF document text
    • http://ellanah.com/uploads/1/3/0/8/130814280/dagunorod_mivezoloto.pdfIn PDF document text
    • http://need4relief.com/uploads/1/3/0/5/130538956/7925684.pdfIn PDF document text
    • http://carciergecalgary.ca/uploads/1/3/0/6/130620353/widape.pdfIn PDF document text
    • http://empoweringintuition.com/uploads/1/3/1/3/131381237/56831.pdfIn PDF document text
    • http://stickwithkate.com/uploads/1/3/1/4/131452800/bamovowesijex-ziforetizojali-pufudamiv-wujomakileg.pdfIn PDF document text
    • http://tesscommunications.net/uploads/1/3/0/5/130590209/jatogofobomunem_jiwer_tepasireri_kudedusi.pdfIn PDF document text
    • http://dalecullis.com/uploads/1/3/0/3/130312937/vezitewikon.pdfIn PDF document text
    • http://sgcorpo.com/uploads/1/3/0/5/130551231/jutudujar.pdfIn PDF document text
    • http://dephnesdesigns.com/uploads/1/3/0/8/130813799/256770.pdfIn PDF document text
    • http://switzswoo.com/uploads/1/3/1/1/131164009/5707325.pdfIn PDF document text
    • http://mountainpress.info/uploads/1/3/0/5/130550836/wowitigufarufab_bifag_wukabe.pdfIn PDF document text
    • http://mylifestylemanager.com/uploads/1/3/0/6/130604004/d978e.pdfIn PDF document text
    • http://brennanmcdavid.com/uploads/1/3/0/5/130542953/8664847.pdfIn PDF document text
    • http://liebertinsurance.com/uploads/1/3/0/5/130539316/2503350.pdfIn PDF document text
    • http://clubcooeesupport.com/uploads/1/3/1/3/131382320/18d59.pdfIn PDF document text
    • http://classicmonumentandcasket.com/uploads/1/3/1/3/131383657/voxoregusevot.pdfIn PDF document text
    • http://lokibeats.com/uploads/1/3/0/3/130379298/9014999.pdfIn PDF document text
    • http://sagefromantarmada.com/uploads/1/3/1/4/131408572/624c5072af9ef3e.pdfIn PDF document text
    • http://booknookblog.org/uploads/1/3/1/4/131482997/93807b832.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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

Related samples 2

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005a02.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A02 10112 bytes
SHA-256: af6ffce718993c3d3364d7780250ecf8d1936ba2f97737b0ffc3d7144f4e4117

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