Malicious PDF — malware analysis report

Static analysis result for SHA-256 f9f3b100e78b1705…

MALICIOUS

PDF

39.6 KB Created: 2020-08-21 22:05:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5e5b551bd4aac57a7e25138695e296aa SHA-1: a33cfbfd4dccd4778105055eae2f96840727e00a SHA-256: f9f3b100e78b17058714686b29faf53090ee0911fcffb535b87caf2888c6c0d4
120 Risk Score

Malware Insights

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

The PDF document contains a link to a redirector service, which in turn points to a large number of other PDF files hosted on various domains. The primary malicious link is to 'ttraff.com', which is known to host malicious content. The document body itself contains the text 'Legend animate text in video premium apk', suggesting a lure for users seeking software. The presence of numerous external PDF links indicates a link farm, likely used to distribute malware or phish for credentials.

Heuristics 3

  • 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.
  • 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=legend+animate+text+in+video+premium+apk
    • http://files.stitchesbylynsey.com/uploads/1/3/1/3/131381706/zadezima.pdf
    • http://navilu.legion22.org/uploads/1/3/0/7/130738894/b0b44ae8610.pdf
    • http://motufar.vinecourtphoto.com/uploads/1/3/1/0/131070940/2a5d109aa.pdf
    • http://tafaz.aprilfricke.com/uploads/1/3/2/6/132683138/fawesuwowu_famezekifuredo_rezavumiwulariz.pdf
    • http://files.beechtreecustomcabinets.com/uploads/1/3/1/4/131453245/jaxorapabamozu.pdf
    • https://cdn.shopify.com/s/files/1/0434/1045/6726/files/44136621217.pdf
    • https://cdn.shopify.com/s/files/1/0433/3951/4006/files/53964591162.pdf
    • https://cdn.shopify.com/s/files/1/0434/3277/1734/files/90298090420.pdf
    • https://cdn.shopify.com/s/files/1/0429/9145/2313/files/74848612629.pdf
    • https://cdn.shopify.com/s/files/1/0431/1495/4908/files/52843006720.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/pedarivorenali.pdf
    • https://cdn.shopify.com/s/files/1/0437/4324/8533/files/javascript_remove_event_listener.pdf
    • https://cdn.shopify.com/s/files/1/0429/6137/1290/files/doxobika.pdf
    • https://cdn.shopify.com/s/files/1/0430/8028/6372/files/seborewusededuviwabija.pdf
    • https://cdn.shopify.com/s/files/1/0428/5225/3863/files/galalapato.pdf
    • https://cdn.shopify.com/s/files/1/0434/9696/4261/files/aircraft_structures_for_engineering_students_solution_manual.pdf
    • https://cdn.shopify.com/s/files/1/0428/7902/5318/files/dukufike.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_off00005bb0.bin
3644c7a8391b5e016b4e11d58222bfd7725311bdc7f31cc40b842f493a651aac
pdf-font-stream PDF embedded font (sfnt) at offset 0x5BB0 5200 bytes
font_01_sfnt_off00006d62.bin
9b9f5e21e1a4e19f21f1b2f5adbe1ee9eeafddb6728fecd04e1403669ea59d07
pdf-font-stream PDF embedded font (sfnt) at offset 0x6D62 10564 bytes