Malicious PDF — malware analysis report

Static analysis result for SHA-256 ad01482a3774dfcd…

MALICIOUS

PDF

44.7 KB Created: 2020-08-21 08:20:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c4b858826b5b991fd9f2cfd88fc6e5e8 SHA-1: 781f7ea898e2b5b01864586dfe1d218276cb1cb7 SHA-256: ad01482a3774dfcd730539981f7a3965eff14d88d6a1bda17a39b5b1fd3bb991
128 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one critical heuristic identifying a link to a known malicious redirector. The document body, though partially corrupted, contains text related to 'Camscanner latest apk free' and a URL pointing to a redirector. This suggests a phishing or social engineering attack aiming to trick the user into visiting malicious sites under the guise of providing a software download.

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.ru/pify?keyword=camscanner+latest+apk+free
    • http://files.pastorbillyshaw.com/uploads/1/3/0/7/130739197/tipuretetekofin-nigemufirikigi-witewugegekadow.pdf
    • http://lafun.edwardtesol.com/uploads/1/3/1/4/131482975/ritexifotem_jinupowev.pdf
    • http://files.immlawcounsel.com/uploads/1/3/1/0/131069859/japixabuzivoj.pdf
    • https://cdn.shopify.com/s/files/1/0434/8212/0358/files/26304396427.pdf
    • https://cdn.shopify.com/s/files/1/0443/4133/0076/files/62874421106.pdf
    • https://cdn.shopify.com/s/files/1/0433/8148/9818/files/56697859391.pdf
    • https://cdn.shopify.com/s/files/1/0433/7228/2008/files/38299717613.pdf
    • https://cdn.shopify.com/s/files/1/0434/3729/3718/files/pedefaduvov.pdf
    • https://cdn.shopify.com/s/files/1/0437/7106/8577/files/dead_space_weapons.pdf
    • https://cdn.shopify.com/s/files/1/0435/1007/1448/files/capitalismo_monopolista_y_servicio_social.pdf
    • https://cdn.shopify.com/s/files/1/0429/9427/0371/files/anthem_bcbs_prior_authorization_form.pdf
    • https://cdn.shopify.com/s/files/1/0428/8672/5795/files/nasoxaxaxadulim.pdf
    • https://cdn.shopify.com/s/files/1/0429/2821/0073/files/sebewijitumu.pdf
    • https://cdn.shopify.com/s/files/1/0431/5843/8039/files/toruruvopawutubuj.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000052e5.bin
911c5d2851c9849a5730467068440b37a24231e97158e1cc556379630872bdbd
pdf-font-stream PDF embedded font (sfnt) at offset 0x52E5 4628 bytes
font_01_sfnt_off0000632e.bin
8e696d56ee1dd23fb774999e22a6f016c89f1cd25cbaf3ed98fe67e89ff53b1e
pdf-font-stream PDF embedded font (sfnt) at offset 0x632E 4876 bytes
font_02_sfnt_off000073a3.bin
7fafd30388d094b1853576439649a3150131870614bc79c3dbfacec562f1e186
pdf-font-stream PDF embedded font (sfnt) at offset 0x73A3 10752 bytes
font_03_sfnt_off0000976f.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3
pdf-font-stream PDF embedded font (sfnt) at offset 0x976F 4324 bytes