Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0d447fe162a28f5…

MALICIOUS

PDF

88.2 KB Created: 2021-03-20 01:04:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-07
MD5: e1164a4016cb8bbb98bf2ab21331447c SHA-1: dd6ea28074a6f6b2b69663d5cdf7acccd83a142c SHA-256: d0d447fe162a28f5191871ada4e93e4eb42d258e41a00b967b7634d4004c3238
186 Risk Score

Malware Insights

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

This PDF file contains a large number of external links, many hosted on disposable domains, indicative of a link farm or phishing campaign. The ClamAV detection and ML classifier strongly suggest malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URLs point towards an attempt to redirect users to malicious or deceptive content, potentially for credential harvesting or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9989

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://soxebez.ru/wix?keyword=apk+on+ios+cydia PDF link annotation
    • https://pigumetazemebet.weebly.com/uploads/1/3/0/7/130775485/cc6fb902.pdfIn PDF document text
    • https://gununoneku.weebly.com/uploads/1/3/4/3/134309052/fexotovaxupewix_fipazogunelo.pdfIn PDF document text
    • https://jurogewogil.weebly.com/uploads/1/3/4/3/134318518/neneduj.pdfIn PDF document text
    • https://lalojitewimagix.weebly.com/uploads/1/3/5/3/135304200/a574da6.pdfIn PDF document text
    • https://muluxadi.weebly.com/uploads/1/3/1/4/131453645/kokijutevukaze.pdfIn PDF document text
    • https://kenasavale.weebly.com/uploads/1/3/4/7/134731907/ade4fe9226.pdfIn PDF document text
    • https://xunasumip.weebly.com/uploads/1/3/2/6/132696393/945480.pdfIn PDF document text
    • http://siwupojotuj.getenjoyment.net/vyapam_calendar_2020_download.pdfIn PDF document text
    • https://pivuwolugere.weebly.com/uploads/1/3/4/0/134041199/498ad9f9.pdfIn PDF document text
    • https://movulejovem.weebly.com/uploads/1/3/4/4/134470355/nuzesufuk-jimujiv.pdfIn PDF document text
    • https://noruwapawufibem.weebly.com/uploads/1/3/0/9/130969999/pewoliratopabiw.pdfIn PDF document text
    • https://jetujipizi.weebly.com/uploads/1/3/0/8/130813705/1e877baccdf2.pdfIn PDF document text
    • https://dokakuzod.weebly.com/uploads/1/3/4/8/134884054/6e90dcf80.pdfIn PDF document text
    • https://navijaxilof.weebly.com/uploads/1/3/2/6/132696044/8887247.pdfIn PDF document text
    • https://vigoxanumevu.weebly.com/uploads/1/3/4/4/134466257/lilixugokosi_mimomosoba_zigivezigovu_ginokot.pdfIn PDF document text
    • https://vomasixesex.weebly.com/uploads/1/3/2/8/132815370/a2506d93ffb.pdfIn PDF document text
    • https://vigenuwotefi.weebly.com/uploads/1/3/4/0/134012497/savukunogujesamiz.pdfIn PDF document text
    • https://bufagigakumeg.weebly.com/uploads/1/3/4/3/134313452/sozemokam.pdfIn PDF document text
    • https://kajanivok.weebly.com/uploads/1/3/2/8/132814977/1d13489b8141844.pdfIn PDF document text
    • https://varalege.weebly.com/uploads/1/3/0/7/130738576/gijexijer_javomabinolekul_xuwekepufatin_dogofag.pdfIn PDF document text
    • http://wupemokabate.scienceontheweb.net/acquisitions_incorporated_online_free.pdfIn PDF document text
    • https://jutokikifugata.weebly.com/uploads/1/3/1/0/131070124/puxadarame.pdfIn PDF document text
    • http://warokibujiz.getenjoyment.net/how_to_raise_self_esteem_book.pdfIn PDF document text
    • http://ruvujagefeko.mygamesonline.org/21108527711.pdfIn PDF document text
    • http://kowojolajamuv.getenjoyment.net/which_states_have_travel_restrictions.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001019c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1019C 3904 bytes
SHA-256: 39ee3b31c280166cdb7c10a82fba65e2c60c9183f64a19325838fc6f6a426a70
font_01_sfnt_off00010f89.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10F89 5092 bytes
SHA-256: 7915d35aaf7cacedbae552aee6f299388aa4c5460ba19eb90c0bf08f51bb2cca
font_02_sfnt_off000120ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x120FF 22004 bytes
SHA-256: 2b4fa77bcbf485bc7c3c7a38261709d7fdecf572b327309aed76d897882c23f4