Malicious PDF — malware analysis report

Static analysis result for SHA-256 df6cb7aac763c677…

MALICIOUS

PDF

45.8 KB Created: 2020-08-25 00:21:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ab621ff32eaa2f5c3860453507b24823 SHA-1: b8dd13e06b35a3c940c804f12b98e1e9f7e43eeb SHA-256: df6cb7aac763c677f77d2ea324c552921af62c9a5053d5bc6fa68f33b80ee33a
150 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, many pointing to external PDF files hosted on various domains. One URL, 'https://ttraff.cc/pify?keyword=organic+banana+nutrition+information', is flagged as a malicious redirector. The presence of a large link farm suggests an attempt at SEO manipulation or a distribution mechanism for further malicious content. No scripts were extracted, and the document body is largely unreadable binary data, limiting further analysis of the specific lure.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.cc/pify?keyword=organic+banana+nutrition+information
    • http://vopofaket.penultimatephotos.com/uploads/1/3/0/9/130969264/kuxijapufidugoj-jomawizakog-zejejegekizudi-setobu.pdf
    • http://kazab.miracast.co.uk/uploads/1/3/1/4/131437508/dopunimubumadug_joditikewu_sepimibefexipod_nenuloriduso.pdf
    • http://jupizifo.emahsin.com/uploads/1/3/2/6/132695569/zifaxobovezup-kikotodutofufi-gafire-pazonubekezek.pdf
    • http://files.radianace.com/uploads/1/3/0/8/130874114/beworazevevik-pojubuvev-zevofezazel.pdf
    • http://fovez.washmofire.org/uploads/1/3/1/6/131637136/3538a8845fa6dbb.pdf
    • https://cdn.shopify.com/s/files/1/0428/7073/5014/files/lozuwofusadizivesevis.pdf
    • https://cdn.shopify.com/s/files/1/0431/6246/8503/files/acdisplay_apk_mirror.pdf
    • https://cdn.shopify.com/s/files/1/0433/9322/0758/files/42156628876.pdf
    • https://cdn.shopify.com/s/files/1/0434/2244/9814/files/55912921998.pdf
    • https://cdn.shopify.com/s/files/1/0433/8463/5544/files/dalajelimuzawo.pdf
    • https://cdn.shopify.com/s/files/1/0429/6278/0311/files/48213344308.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/76106621034.pdf
    • https://cdn.shopify.com/s/files/1/0438/3490/0637/files/fajixovu.pdf
    • https://cdn.shopify.com/s/files/1/0432/5851/1522/files/bunn_my_cafe_manual.pdf
    • https://cdn.shopify.com/s/files/1/0431/7744/3483/files/fawelajibixebusupokawiz.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_off00006765.bin
c4736dbecb35b556dcd06312d3387b547e9dffe79e6d471833e440ce63dacc7b
pdf-font-stream PDF embedded font (sfnt) at offset 0x6765 4920 bytes
font_01_sfnt_off00007807.bin
cc965f10659983a99cb1ba5c0fba9731f53b697604e8def6966a4b629772b27a
pdf-font-stream PDF embedded font (sfnt) at offset 0x7807 10508 bytes
font_02_sfnt_off00009c07.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3
pdf-font-stream PDF embedded font (sfnt) at offset 0x9C07 4324 bytes