Malicious PDF — malware analysis report

Static analysis result for SHA-256 711f6110cdf29bf2…

MALICIOUS

PDF

35.1 KB Created: 2020-08-22 15:32:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ed2ac4169f4c72443e807f36345ee723 SHA-1: 8c73003e893e40b0befe9a6e89fa851990875cd0 SHA-256: 711f6110cdf29bf249ce3479821a487cd3a0207edff441ebc08d1aa475f3c1a4
154 Risk Score

Malware Insights

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

The PDF contains embedded links, with one specifically pointing to a known malicious redirector infrastructure. The document body, though partially corrupted, includes text suggesting a lure related to 'cartoon status video tamil' and the malicious URL. The presence of numerous external PDF links, including one to a redirector, indicates an attempt to drive traffic to potentially harmful content, likely as part of a phishing or scam campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://ttraff.com/pify?keyword=cartoon+status+video++tamil
    • http://toboleto.ebanexperience.com/uploads/1/3/0/8/130814674/juvulupiziwumoz.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://cdn.shopify.com/s/files/1/0440/6283/4853/files/54285821128.pdf
    • https://cdn.shopify.com/s/files/1/0434/1337/3084/files/alleluia_marcelo.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mowajuvide.pdf
    • https://cdn.shopify.com/s/files/1/0434/2690/6264/files/demographic_dividend_and_development.pdf
    • https://cdn.shopify.com/s/files/1/0440/5572/4197/files/88237786544.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/ridikesomuzumiburowafex.pdf
    • https://cdn.shopify.com/s/files/1/0433/8040/8474/files/73311856319.pdf
    • https://cdn.shopify.com/s/files/1/0448/3688/0545/files/58090894847.pdf
    • https://cdn.shopify.com/s/files/1/0436/5657/7182/files/alessio_bax_sheet_music.pdf
    • https://cdn.shopify.com/s/files/1/0432/6660/5211/files/bupomiz.pdf
    • https://cdn.shopify.com/s/files/1/0432/5454/6590/files/vakovovidabamatorobu.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_off00004144.bin
560564e5504117e56d6b69fb8b4eede7bb1a35ab81c3d72dfe5da60cae387466
pdf-font-stream PDF embedded font (sfnt) at offset 0x4144 4936 bytes
font_01_sfnt_off000051f2.bin
43faf60d22245e71569eca9206c0755549c2467cfcf5199945cf9ebf9d2ed697
pdf-font-stream PDF embedded font (sfnt) at offset 0x51F2 9380 bytes
font_02_sfnt_off00007205.bin
b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c
pdf-font-stream PDF embedded font (sfnt) at offset 0x7205 4324 bytes