Malicious PDF — malware analysis report

Static analysis result for SHA-256 e687323805983c8b…

MALICIOUS

PDF

44.7 KB Created: 2020-08-07 03:47:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c9b26c55a2211612f923829249009109 SHA-1: 053f2e301454729c633f837f4e38d11c243cdee0 SHA-256: e687323805983c8b2e6c59d8d44b007ae741ca8b0d83e41e8ec8f583678c61aa
148 Risk Score

Malware Insights

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

The PDF file contains a link farm and a malicious redirector URL, indicating a phishing or scam attempt. The document body mentions 'Camera scanner pdf creator apk' and includes a URL that appears to be a lure for a malicious download. The presence of numerous external PDF links, many hosted on Shopify, suggests an attempt to manipulate search engine results or distribute malicious content through seemingly legitimate platforms.

Heuristics 5

  • 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.
  • QR-code redirect lure medium SE_QR_LURE
    Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
  • 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.ru/pify?keyword=camera+scanner+pdf+creator+apk
    • http://files.munesworld.com/uploads/1/3/0/8/130813705/42fd796f32404d.pdf
    • http://files.colton-craig.com/uploads/1/3/1/1/131164573/7717242.pdf
    • http://files.charlottehager.com/uploads/1/3/1/4/131453432/9cd2b68b7a2e6cb.pdf
    • http://xobef.escoria.com.ar/uploads/1/3/0/7/130776542/ed623292be7636b.pdf
    • http://files.sno-puffsamoyeds.com/uploads/1/3/1/4/131437523/dawuviganijin.pdf
    • https://cdn.shopify.com/s/files/1/0437/7162/5621/files/aerated_concrete.pdf
    • https://cdn.shopify.com/s/files/1/0431/7973/7237/files/391160196.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/28068876324.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/sujufizolotedugogu.pdf
    • https://cdn.shopify.com/s/files/1/0430/6924/3549/files/26430451408.pdf
    • https://cdn.shopify.com/s/files/1/0430/1550/4029/files/63129080913.pdf
    • https://cdn.shopify.com/s/files/1/0434/5459/5224/files/validoredujexotedom.pdf
    • https://cdn.shopify.com/s/files/1/0434/4460/0999/files/fluid_mechanics_7th_edition_solution_manual.pdf
    • https://cdn.shopify.com/s/files/1/0430/3667/2162/files/50792588763.pdf
    • https://cdn.shopify.com/s/files/1/0428/9658/8967/files/pexakogezajakexe.pdf
    • https://cdn.shopify.com/s/files/1/0428/5107/4204/files/vaberesed.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_off00006f57.bin
73c374f5ec7d516b55d5dbcde24846e935e62a0ca213ec531651a35e7d3a8741
pdf-font-stream PDF embedded font (sfnt) at offset 0x6F57 5240 bytes
font_01_sfnt_off00008111.bin
278fd27f40798a77948c1eb3329ae58f36776ad8a7f40c157b533532361b5da9
pdf-font-stream PDF embedded font (sfnt) at offset 0x8111 11004 bytes