Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c45abe8e1ea65af…

MALICIOUS

PDF

37.6 KB Created: 2020-08-21 13:42:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 15429529d7b855099b63cda342c4454f SHA-1: 1753e59ad049698ab59ceae9fefe68c8c66513d9 SHA-256: 2c45abe8e1ea65afc9b3b9e2fefd3f439a03a9e56d0bbaf1392e7fb9b9847bb5
152 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link redirects to a known malicious domain, ttraff.ru. This suggests a link farm or SEO poisoning tactic designed to funnel users to malicious content. The document body, though partially corrupted, contains the text 'Money laundering reporting officer mauritius' and the malicious URL, reinforcing the lure. No scripts were extracted from this sample.

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.ru/pify?keyword=money+laundering+reporting+officer+mauritius
    • http://files.maryballdar.com/uploads/1/3/0/7/130776644/kimoxunemis_pirijad.pdf
    • http://files.greenandhealthyschoolsacademy.org/uploads/1/3/0/7/130739764/lugexuzan.pdf
    • http://zejadubus.wholeheal.co.uk/uploads/1/3/0/8/130874540/resigabetiwapuz.pdf
    • http://sorimuzik.themunrosofglenorrin.com/uploads/1/3/1/6/131636725/8380184.pdf
    • http://files.spiritchile.net/uploads/1/3/2/7/132740905/silozidatojewonipok.pdf
    • https://cdn.shopify.com/s/files/1/0436/7784/3609/files/60089624429.pdf
    • https://cdn.shopify.com/s/files/1/0430/3598/4029/files/vujebuduzimuz.pdf
    • https://cdn.shopify.com/s/files/1/0434/7507/5225/files/architectural_design_concept_ideas.pdf
    • https://cdn.shopify.com/s/files/1/0431/5581/6599/files/mumefokulu.pdf
    • https://cdn.shopify.com/s/files/1/0433/5104/8357/files/65119548045.pdf
    • https://cdn.shopify.com/s/files/1/0427/6633/6167/files/jebakar.pdf
    • https://cdn.shopify.com/s/files/1/0437/5108/0087/files/21511778663.pdf
    • https://cdn.shopify.com/s/files/1/0429/2732/5343/files/41418577503.pdf
    • https://cdn.shopify.com/s/files/1/0431/8245/7000/files/56056059786.pdf
    • https://cdn.shopify.com/s/files/1/0431/5706/1796/files/polaroid_powerpoint_template.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/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000545d.bin
1e4ddc03b489a7db1c49580d6cd4150bf2cabdddd133659e82daa0f484d5caa6
pdf-font-stream PDF embedded font (sfnt) at offset 0x545D 5580 bytes
font_01_sfnt_off00006756.bin
823fbe016bd7a2a7a046dc823c29ddb425dd3b37ecefc4e43fd1b65a3df7f7f9
pdf-font-stream PDF embedded font (sfnt) at offset 0x6756 9908 bytes