Malicious PDF — malware analysis report

Static analysis result for SHA-256 9035933baa0e1a94…

MALICIOUS

PDF

52.4 KB Created: 2020-08-07 20:49:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ca92aaef4ac66532eb78a29e0d6f96c4 SHA-1: df5c2b5241c31cc8b2907322b8bc9c7143130bfe SHA-256: 9035933baa0e1a949d12db9acdc7a54348c94492822a6cfbae4603fc500ef239
140 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a heuristic indicating it's a malicious redirector link, pointing to 'ttraff.com'. Additionally, it features a PDF link farm with numerous external links, many hosted on 'cdn.shopify.com'. The document body, though partially corrupted, contains text related to 'Yrc bill of lading form pdf' and the malicious URL, suggesting a lure to trick users into clicking the link. The presence of a callback phishing lure heuristic further supports the malicious intent.

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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • 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=yrc+bill+of+lading+form+pdf
    • http://files.faithbaptistalturas.org/uploads/1/3/1/3/131381288/filimutotu.pdf
    • http://files.barebearbutter.com/uploads/1/3/2/3/132302824/wakuja_xaxaziku_miwad.pdf
    • http://files.matthewhavertz.com/uploads/1/3/0/7/130776239/54d36c1b885.pdf
    • http://files.bluecrescentstudio.com/uploads/1/3/1/6/131606289/wufevonotalo_nekaxol_dubogapo.pdf
    • http://files.heal2change.com/uploads/1/3/0/7/130774993/jukurujiwarub_lesuvopivapo_zilate.pdf
    • https://cdn.shopify.com/s/files/1/0431/1062/9532/files/soril.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/todexarim.pdf
    • https://cdn.shopify.com/s/files/1/0449/2899/1399/files/quantitative_method_for_management.pdf
    • https://cdn.shopify.com/s/files/1/0428/5048/4390/files/31497821885.pdf
    • https://cdn.shopify.com/s/files/1/0435/4798/4026/files/3724660210.pdf
    • https://cdn.shopify.com/s/files/1/0427/9785/8972/files/sujet_et_corrig_brevet_franais_2020.pdf
    • https://cdn.shopify.com/s/files/1/0430/0272/4506/files/19912151943.pdf
    • https://cdn.shopify.com/s/files/1/0429/6055/2085/files/kudevanujofidejokusara.pdf
    • https://cdn.shopify.com/s/files/1/0438/3889/8333/files/61641084236.pdf
    • https://cdn.shopify.com/s/files/1/0431/7796/7778/files/solerorewij.pdf
    • https://cdn.shopify.com/s/files/1/0432/3164/1762/files/mixivolawax.pdf
    • https://cdn.shopify.com/s/files/1/0437/8745/2576/files/41445363133.pdf
    • https://cdn.shopify.com/s/files/1/0432/9403/2025/files/8246517128.pdf
    • https://cdn.shopify.com/s/files/1/0451/1947/1781/files/65th_bpsc_question_paper.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_off00008b38.bin
9e3e9cdd66767beacf29e0b75a7a07ddfcedc5c3698c6e4561967e5144f9a0a1
pdf-font-stream PDF embedded font (sfnt) at offset 0x8B38 5400 bytes
font_01_sfnt_off00009d82.bin
0d283ae5d244b6b841491502492c5ad4b98b04b637b6ca0815c78e059f3cf76e
pdf-font-stream PDF embedded font (sfnt) at offset 0x9D82 11580 bytes