Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd94b538ee96170d…

MALICIOUS

PDF

47.9 KB Created: 2020-08-12 16:50:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9b6212d06fa0c0296a4e391a326f2d16 SHA-1: b37441130f00882bef5c64e75b7ae758259b5be9 SHA-256: dd94b538ee96170d1ad1cc2375995d27dec27f46802ddbf1f8027cca82e06011
150 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link disguised as a free download, which is a common lure for phishing or malware distribution. The document body and heuristics indicate a link farm designed to drive traffic to potentially malicious sites. The primary malicious IOC is the ttraff.cc redirector URL.

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=download+buku+belajar+membaca+untuk+tk+pdf
    • http://wemor.georgelloyd-jones.com/uploads/1/3/0/8/130813714/6552850.pdf
    • http://files.mypedalpower.com/uploads/1/3/1/1/131164157/4018296.pdf
    • http://files.kinsellamitchell.com/uploads/1/3/2/6/132682639/bukisiremajibivifo.pdf
    • http://files.firstaidforall.org/uploads/1/3/1/6/131606121/fipigukedi.pdf
    • http://files.chemindemoda.ca/uploads/1/3/1/1/131164314/5727987.pdf
    • https://cdn.shopify.com/s/files/1/0430/6727/7469/files/dell_optiplex_755_drivers.pdf
    • https://cdn.shopify.com/s/files/1/0437/7359/1703/files/naming_spiro_compounds_practice_problems.pdf
    • https://cdn.shopify.com/s/files/1/0438/0868/6237/files/bewajufunemolawerimaniwot.pdf
    • https://cdn.shopify.com/s/files/1/0434/7104/4770/files/43161062000.pdf
    • https://cdn.shopify.com/s/files/1/0434/3506/5505/files/29269007209.pdf
    • https://cdn.shopify.com/s/files/1/0430/1540/5725/files/26283199277.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gofifarigomikidapowokov.pdf
    • https://cdn.shopify.com/s/files/1/0428/2312/3100/files/46692158964.pdf
    • https://cdn.shopify.com/s/files/1/0430/3755/6889/files/10872266652.pdf
    • https://cdn.shopify.com/s/files/1/0431/6397/5835/files/37634466351.pdf
    • https://cdn.shopify.com/s/files/1/0434/5774/0967/files/60361690487.pdf
    • https://cdn.shopify.com/s/files/1/0434/0475/5096/files/audio_visual_materials_in_teaching.pdf
    • https://cdn.shopify.com/s/files/1/0439/8887/7470/files/72128822340.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_off00006697.bin
4b90880ad42661b787750c6acd67b8476bc6763bf6029059e3b8045f12a9ab9a
pdf-font-stream PDF embedded font (sfnt) at offset 0x6697 5496 bytes
font_01_sfnt_off0000794f.bin
f4e0c494e3d80f6c82543a673616318e5fae044b30602660b217a447a4b030cd
pdf-font-stream PDF embedded font (sfnt) at offset 0x794F 10348 bytes
font_02_sfnt_off00009cc8.bin
408ebcece817cbbd80046088335bb75cd1dbc6b0f5165e1d65ad4750407d5f26
pdf-font-stream PDF embedded font (sfnt) at offset 0x9CC8 16176 bytes