Malicious PDF — malware analysis report

Static analysis result for SHA-256 c7f9a028137f53f4…

MALICIOUS

PDF

47.8 KB Created: 2020-08-23 10:26:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 237f4a8b667ab00501c3c3560816a673 SHA-1: 2a253beb248b8a1fd04db5b692d6ecdaf689f721 SHA-256: c7f9a028137f53f4696782c0422f77a0094d5aa0798e6c88c846f9a6ee6baaf5
130 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=chikni+chameli+mp4+full+song'. Additionally, it exhibits a PDF link farm pattern with numerous external PDF links, suggesting an attempt to distribute further malicious content or engage in SEO abuse. The presence of a 'download button' lure reinforces the deceptive nature of the document. No scripts were extracted, but the combination of the redirector and link farm indicates a likely phishing or malware distribution attempt.

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=chikni+chameli+mp4+full+song
    • http://files.thollfence.com/uploads/1/3/1/6/131607575/vuginejilenogup.pdf
    • http://wofuweg.riveroaksnorthcharleston.com/uploads/1/3/0/9/130969352/11694.pdf
    • http://files.stthomasabecketchurch.co.uk/uploads/1/3/1/3/131380482/7209896.pdf
    • https://cdn.shopify.com/s/files/1/0427/6020/8540/files/12463893776.pdf
    • https://cdn.shopify.com/s/files/1/0431/0892/5600/files/wojesubujosolukirewebexup.pdf
    • https://cdn.shopify.com/s/files/1/0431/8406/2626/files/community_college_hero_acrobat_guide.pdf
    • https://cdn.shopify.com/s/files/1/0427/4801/8855/files/6783744031.pdf
    • https://cdn.shopify.com/s/files/1/0437/2643/8550/files/tenemodadulobivek.pdf
    • https://cdn.shopify.com/s/files/1/0427/9474/6023/files/33822721878.pdf
    • https://cdn.shopify.com/s/files/1/0431/6073/1799/files/6085524982.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/welilavuruwad.pdf
    • https://cdn.shopify.com/s/files/1/0434/2389/1618/files/carbs_food_list.pdf
    • https://cdn.shopify.com/s/files/1/0434/2788/9303/files/65391780001.pdf
    • https://cdn.shopify.com/s/files/1/0432/7433/8472/files/memekotigenafalamipobume.pdf
    • https://cdn.shopify.com/s/files/1/0428/6231/3631/files/plataforma_scielo_brasil.pdf
    • https://cdn.shopify.com/s/files/1/0431/4516/7008/files/5227491844.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_off00006cd2.bin
f72e8194075adc0ac6d85c458a4bbe00068fe8c6b62de72d20d28655b3c360f0
pdf-font-stream PDF embedded font (sfnt) at offset 0x6CD2 5392 bytes
font_01_sfnt_off00007f02.bin
52178a014237d05ded3ae334477104692163e1231ad02561000cd007911c2e82
pdf-font-stream PDF embedded font (sfnt) at offset 0x7F02 16084 bytes