Malicious PDF — malware analysis report

Static analysis result for SHA-256 e49c34cc5e307676…

MALICIOUS

PDF

43.6 KB Created: 2020-08-22 17:39:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 55762f80304008591a22e10bf080dd64 SHA-1: aafaaebc2ed9c7aa6d30a236389f483b029db4c3 SHA-256: e49c34cc5e3076768ffddd13c1dcc757115815c2ef8b91df7a5b610bee8b4df5
140 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link T1059.001 PowerShell

The PDF contains numerous embedded links, with a critical heuristic firing for a malicious redirector. The document body, though partially corrupted, contains text related to 'airplane baby crib sheets' and includes the malicious URL. This suggests a lure to a phishing or malware distribution site. The presence of a callback phishing lure heuristic further supports the social engineering aspect of this attack.

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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • 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=airplane+baby+crib+sheets
    • http://files.27software.com/uploads/1/3/1/3/131380299/5ec33674a6706.pdf
    • http://files.greenteamllc.com/uploads/1/3/1/8/131857305/rixipomavuzadegabur.pdf
    • http://files.kbzz.org/uploads/1/3/2/7/132710722/nalimuvakogi-veburariliw-gezamuxarotuxor-zizusawoxota.pdf
    • http://files.thetruthstandsforever.com/uploads/1/3/1/8/131871569/lofalanesepuxidajir.pdf
    • http://wedam.redlodgecountryproduce.com/uploads/1/3/0/7/130776485/viginise.pdf
    • https://cdn.shopify.com/s/files/1/0445/5736/9503/files/6755350564.pdf
    • https://cdn.shopify.com/s/files/1/0437/8276/6750/files/technical_interview_questions_and_answers_for_computer_science.pdf
    • https://cdn.shopify.com/s/files/1/0429/6186/2810/files/54003233749.pdf
    • https://cdn.shopify.com/s/files/1/0437/1031/6694/files/baumer_absolute_encoder.pdf
    • https://cdn.shopify.com/s/files/1/0434/2149/9548/files/12549357054.pdf
    • https://cdn.shopify.com/s/files/1/0434/4102/9276/files/synology_assistant_xpenology.pdf
    • https://cdn.shopify.com/s/files/1/0432/4930/3720/files/sujomitova.pdf
    • https://cdn.shopify.com/s/files/1/0433/4908/2264/files/pifajewiwinupagi.pdf
    • https://cdn.shopify.com/s/files/1/0435/1829/6228/files/dak_ahb_antrag.pdf
    • https://cdn.shopify.com/s/files/1/0431/4857/4886/files/warhammer_bestiariusz_download.pdf
    • https://cdn.shopify.com/s/files/1/0454/0271/8376/files/signs_and_symptoms_of_ischemic_stroke.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_off00006baf.bin
97e5f64a6b18425d553bdc101605b1b6346f88879fdc64881258db07d44d40ec
pdf-font-stream PDF embedded font (sfnt) at offset 0x6BAF 5252 bytes
font_01_sfnt_off00007d73.bin
5c5fb97f4e6fdeb88422be87b1b3bd4b01341b0f1134d14fe31fff96255b56b4
pdf-font-stream PDF embedded font (sfnt) at offset 0x7D73 10524 bytes