Malicious PDF — malware analysis report

Static analysis result for SHA-256 256f62959bc7fb6b…

MALICIOUS

PDF

39.0 KB Created: 2020-08-23 12:57:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b690b7fe46272a554b4a2433e20ad972 SHA-1: 106ffb0e68a1d0533fdec2a849be602d5e1ad805 SHA-256: 256f62959bc7fb6b4fbb869648bf60d46ab996fc051389275dcfa2ff270fd936
128 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=champion+odia+movie+song+video'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, including one to 'https://cdn.shopify.com/s/files/1/0431/5414/5444/files/8900370d8a754ae8c0a4a56c43f29c5a.pdf'. The document body also contains these URLs, suggesting a lure to trick users into clicking through to malicious content.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=champion+odia+movie+song+video
    • http://files.willowbowmassage.com/uploads/1/3/0/8/130813757/nutakowino.pdf
    • http://files.agbole.com/uploads/1/3/2/8/132814241/4695160.pdf
    • http://fozap.plumasarts.org/uploads/1/3/0/8/130814328/tetikefa_winutagisofuxo.pdf
    • https://cdn.shopify.com/s/files/1/0431/5414/5444/files/8900370d8a754ae8c0a4a56c43f29c5a.pdf
    • https://cdn.shopify.com/s/files/1/0437/9597/2256/files/windows_10_iso_for_mac_free.pdf
    • https://cdn.shopify.com/s/files/1/0430/6681/8721/files/64988938754.pdf
    • https://cdn.shopify.com/s/files/1/0433/7549/3271/files/93052287315.pdf
    • https://cdn.shopify.com/s/files/1/0433/8765/0211/files/dodunume.pdf
    • https://cdn.shopify.com/s/files/1/0432/2826/6654/files/62791148147.pdf
    • https://cdn.shopify.com/s/files/1/0427/5427/7532/files/fagijazen.pdf
    • https://cdn.shopify.com/s/files/1/0443/3759/4524/files/kedekajudazodon.pdf
    • https://cdn.shopify.com/s/files/1/0432/4923/8178/files/wufituzoxerubizikixanula.pdf
    • https://cdn.shopify.com/s/files/1/0440/4995/7029/files/26992745372.pdf
    • https://cdn.shopify.com/s/files/1/0434/3624/5144/files/gigokuxuvezatatufadane.pdf
    • https://cdn.shopify.com/s/files/1/0428/3331/3958/files/77310039512.pdf
    • https://cdn.shopify.com/s/files/1/0432/2387/5746/files/formulaire_d_attestation_de_travail.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004e1d.bin
a5a305c6379ab1f04bf91528edf32c6eabbb3ac99012da65c591496767d937d8
pdf-font-stream PDF embedded font (sfnt) at offset 0x4E1D 5036 bytes
font_01_sfnt_off00005f1b.bin
1088ee5b19e10c8288eae056d381745963c1a3a71e0a3fa926ef592e465b439c
pdf-font-stream PDF embedded font (sfnt) at offset 0x5F1B 9896 bytes
font_02_sfnt_off00008106.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e
pdf-font-stream PDF embedded font (sfnt) at offset 0x8106 4324 bytes