Malicious PDF — malware analysis report

Static analysis result for SHA-256 44623224b2486e04…

MALICIOUS

PDF

50.6 KB Created: 2020-08-06 08:50:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 68c63292fcdc5fce295ca55e689f902e SHA-1: 8babb670187dd7555732ce7f684a4f7890b7066a SHA-256: 44623224b2486e04086d7aac78335467a4f32d18740e7cced598864e88af45c2
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a link farm hosted on cdn.shopify.com, and one critical link to a known malicious redirector at ttraff.cc. The document body, though heavily obfuscated, contains the text 'Livre pour apprendre a parler l anglais pdf' and the malicious URL, suggesting a lure to download a PDF. The redirector link likely leads to further malicious content or malware.

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=livre+pour+apprendre+a+parler+l+anglais+pdf
    • http://files.nsldhh.com/uploads/1/3/1/3/131383754/579d8e7b84e82a0.pdf
    • http://files.amyplanttherapy.com/uploads/1/3/1/4/131438389/d557215df6d53a.pdf
    • http://files.sebastianwetherbee.com/uploads/1/3/1/4/131453393/zajesaw.pdf
    • http://files.2skypattaya.com/uploads/1/3/0/7/130739340/rovelinat_tipatoxoxemu_mubulubitotil.pdf
    • http://files.lukeadamsproductions.com/uploads/1/3/1/3/131380440/xutomerokapedewez.pdf
    • https://cdn.shopify.com/s/files/1/0433/1339/7924/files/pizaj.pdf
    • https://cdn.shopify.com/s/files/1/0428/5733/2895/files/crosstalk_between_apoptosis_necrosis_and_autophagy.pdf
    • https://cdn.shopify.com/s/files/1/0430/5282/6773/files/61546470074.pdf
    • https://cdn.shopify.com/s/files/1/0446/9764/9306/files/jeep_patriot_manual_transmission.pdf
    • https://cdn.shopify.com/s/files/1/0430/0495/2735/files/92075030838.pdf
    • https://cdn.shopify.com/s/files/1/0436/0008/5160/files/javilenerivojuf.pdf
    • https://cdn.shopify.com/s/files/1/0435/1157/8776/files/bimazivolovade.pdf
    • https://cdn.shopify.com/s/files/1/0431/6738/3713/files/32522389631.pdf
    • https://cdn.shopify.com/s/files/1/0437/6992/1690/files/62472744505.pdf
    • https://cdn.shopify.com/s/files/1/0430/8513/6021/files/51771954185.pdf
    • https://cdn.shopify.com/s/files/1/0438/8644/4699/files/java_codes_games.pdf
    • https://cdn.shopify.com/s/files/1/0434/0459/1255/files/1322313604.pdf
    • https://cdn.shopify.com/s/files/1/0433/7877/0076/files/18981980774.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_off000082eb.bin
182373698f70edc5531b49c9898f3c7a0ffaa680effb9d0bfd217da1c6c0ceec
pdf-font-stream PDF embedded font (sfnt) at offset 0x82EB 5208 bytes
font_01_sfnt_off000094bf.bin
3689723001177e2483bedbe5b672925457b86cef2fe0e6eeb22b13cb2badb031
pdf-font-stream PDF embedded font (sfnt) at offset 0x94BF 12240 bytes