Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2e99c60240566de…

MALICIOUS

PDF

38.4 KB Created: 2020-08-16 19:13:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 343c58d9e63c75bd8b62a32e39cca877 SHA-1: 31dd0a5464742aec1dd09edb36045c1a3707215e SHA-256: e2e99c60240566def7c84053306a9737bbd20e5899310f5ccc7b94fa75c824de
152 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.cc, disguised as a 'wonder woman logo printable template'. The document body, though heavily corrupted, contains this lure text and multiple URLs. The heuristic firings confirm the presence of malicious redirector links and a link farm, indicating a phishing or redirection attempt. The ML classifier strongly supports the malicious nature of this PDF.

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.cc/pify?keyword=wonder+woman+logo+printable+template
    • http://files.americanrootworkassociation.com/uploads/1/3/0/7/130775232/3714291.pdf
    • http://files.jennyrollsyoga.com/uploads/1/3/2/6/132681698/c6209.pdf
    • http://files.joseixchu-realestate.com/uploads/1/3/1/4/131406390/6240718.pdf
    • https://cdn.shopify.com/s/files/1/0440/8524/8165/files/61838745158.pdf
    • https://cdn.shopify.com/s/files/1/0428/5834/8703/files/90119345775.pdf
    • https://cdn.shopify.com/s/files/1/0435/9510/4424/files/safumikegerabigivilosudar.pdf
    • https://cdn.shopify.com/s/files/1/0447/9811/6006/files/vuzopozubo.pdf
    • https://cdn.shopify.com/s/files/1/0431/6371/3690/files/13311043568.pdf
    • https://cdn.shopify.com/s/files/1/0427/7967/2735/files/51682527925.pdf
    • https://cdn.shopify.com/s/files/1/0432/7571/4715/files/toreju.pdf
    • https://cdn.shopify.com/s/files/1/0438/3621/1362/files/gugibawowivurijawedasu.pdf
    • https://cdn.shopify.com/s/files/1/0435/1511/7727/files/tatalaksana_psoriasis_vulgaris.pdf
    • https://cdn.shopify.com/s/files/1/0435/0243/6518/files/befoda.pdf
    • https://cdn.shopify.com/s/files/1/0430/8362/8708/files/tirodegarulonapuwokofotis.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wakudegebemufajetexu.pdf
    • https://cdn.shopify.com/s/files/1/0427/7318/4678/files/8034611105.pdf
    • https://cdn.shopify.com/s/files/1/0434/3247/6838/files/98054127308.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_off000057ec.bin
8b6b22eaba8c14f9983e49b2bc4f6e89067a7f01ec1cf954426876cfe68d442e
pdf-font-stream PDF embedded font (sfnt) at offset 0x57EC 5344 bytes
font_01_sfnt_off00006a14.bin
6f8699b604dbb02ab93cb353bd8cf486e8222c6b8c19d30de97f0b0fc8214cd4
pdf-font-stream PDF embedded font (sfnt) at offset 0x6A14 10148 bytes