Malicious PDF — malware analysis report

Static analysis result for SHA-256 d8edbc35a462635a…

MALICIOUS

PDF

51.0 KB Created: 2020-08-03 22:01:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3dd46f7d8af984d4f6368d5d02000040 SHA-1: 75e94c564926947135c4fda83de969954ea5a057 SHA-256: d8edbc35a462635a2f9c4a962c4e7491edeee1cf574fdac1eb552665c51b8add
128 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=neurogenic+bladder+pdf'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links. The document body, though heavily obfuscated, contains the same URL and references to urgency, suggesting a phishing or scam attempt designed to entice clicks to malicious infrastructure. No scripts were extracted from this sample.

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=neurogenic+bladder+pdf
    • http://files.the-crazycucumber.com/uploads/1/3/0/8/130813663/lepitujet-ratovoma-mobutizodamosa-wazipilax.pdf
    • http://files.omalleyfoundation.com/uploads/1/3/0/7/130739265/bivixedewarag.pdf
    • http://files.chestervt.gov/uploads/1/3/0/7/130738562/f1ca2849c636.pdf
    • http://files.projectunlearn.com/uploads/1/3/1/3/131380008/vobalum.pdf
    • http://files.zestnaturalmedicine.com/uploads/1/3/1/4/131453291/lekeveteso_jetuvati_koxolivet_lemufatebavu.pdf
    • https://cdn.shopify.com/s/files/1/0435/8314/4104/files/29281220218.pdf
    • https://cdn.shopify.com/s/files/1/0430/3477/1610/files/92314138500.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/98690712505.pdf
    • https://cdn.shopify.com/s/files/1/0434/6799/7344/files/kukafenupurixaxelomomerum.pdf
    • https://cdn.shopify.com/s/files/1/0431/8108/0738/files/nameramokojuw.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/69651331918.pdf
    • https://cdn.shopify.com/s/files/1/0433/7192/1571/files/18486528826.pdf
    • https://cdn.shopify.com/s/files/1/0436/7994/0761/files/jazufebazewibe.pdf
    • https://cdn.shopify.com/s/files/1/0436/1751/7725/files/lujokek.pdf
    • https://cdn.shopify.com/s/files/1/0431/6836/6760/files/3765624118.pdf
    • https://cdn.shopify.com/s/files/1/0431/2730/8454/files/zawojipimemuwujak.pdf
    • https://cdn.shopify.com/s/files/1/0431/2206/5557/files/dewaropijimo.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_off00008bd6.bin
82bcbe0f7b6eeb3fe1b482839f0446df2ba83829925acabbb6684ac813d688c1
pdf-font-stream PDF embedded font (sfnt) at offset 0x8BD6 5252 bytes
font_01_sfnt_off00009dcc.bin
05b2beed4532ac383f393b92074b3c81e5730cac3c8a212343c92b24266da5e6
pdf-font-stream PDF embedded font (sfnt) at offset 0x9DCC 9808 bytes