Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2f22861e4dab061…

MALICIOUS

PDF

38.0 KB Created: 2020-08-04 21:56:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 356fac5036ad7a206a100deaadd37a64 SHA-1: 5322635af980a181ce9bb079e403eea2b8ef3644 SHA-256: d2f22861e4dab061f84704cda7af52ff0896b7c88715409e8c17c98c956e60a4
152 Risk Score

Malware Insights

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

The PDF contains a link farm designed to redirect users to malicious infrastructure, specifically identified by the critical heuristic PDF_MALICIOUS_REDIRECTOR_LINK. The document body, though partially corrupted, contains text related to a 'Suzuki celerio owners manual pdf' and embeds multiple URLs, including a primary redirector at https://ttraff.com/wb?keyword=suzuki%20celerio%20owners%20manual%20pdf. This indicates a phishing or scam attempt disguised as a helpful document to lure users to malicious sites.

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/wb?keyword=suzuki%20celerio%20owners%20manual%20pdf
    • http://files.myminimus.com/uploads/1/3/1/1/131164431/fbad820a.pdf
    • http://files.gophertrackshots.net/uploads/1/3/1/4/131408741/fafa56123547b.pdf
    • http://files.professionalcapitalpartners.com/uploads/1/3/1/4/131438766/4121815.pdf
    • https://cdn.shopify.com/s/files/1/0434/3080/5669/files/40223489445.pdf
    • https://cdn.shopify.com/s/files/1/0434/3031/4133/files/41370894213.pdf
    • https://cdn.shopify.com/s/files/1/0434/9113/1557/files/96333330051.pdf
    • https://cdn.shopify.com/s/files/1/0438/9198/2491/files/wadanikurag.pdf
    • https://cdn.shopify.com/s/files/1/0432/8914/9608/files/malaquias_hernandes_dias_lopes.pdf
    • https://cdn.shopify.com/s/files/1/0427/9179/6902/files/51369188419.pdf
    • https://cdn.shopify.com/s/files/1/0431/7341/3028/files/penotu.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/sujufizolotedugogu.pdf
    • https://cdn.shopify.com/s/files/1/0435/1492/1112/files/mifofoxifuloludofelifeg.pdf
    • https://cdn.shopify.com/s/files/1/0429/5039/4019/files/19237648224.pdf
    • https://cdn.shopify.com/s/files/1/0437/2326/0058/files/82411350166.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_off00005529.bin
e0a3dc38d45587f7b20b272a6830503928e04d28c04b15bff76fead4f1ebb427
pdf-font-stream PDF embedded font (sfnt) at offset 0x5529 5612 bytes
font_01_sfnt_off0000684b.bin
d919fec83e54b642089cd0107270c4877a871f61d7dc06800b912d33846fab2a
pdf-font-stream PDF embedded font (sfnt) at offset 0x684B 10192 bytes