Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6da1a2a055110df…

MALICIOUS

PDF

55.8 KB Created: 2020-07-30 15:58:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 038c0edd21d0c8e8b8a55e6602aa2ed3 SHA-1: 596e4ce370894bc5a0dfa772dc7b48ca229f59a6 SHA-256: e6da1a2a055110dfb0b7e0bb14e21c4173fac19c780c6407bf829fd7dc359ce6
140 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing for a malicious redirector. The document body, though heavily obfuscated, suggests a lure related to 'Ab initio etl training material'. The presence of a link farm and a callback phishing lure further supports a scam or phishing intent. The primary malicious IOC is the redirector URL.

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.ru/pify?keyword=ab+initio+etl+training+material+pdf
    • http://files.ncmusictherapy.org/uploads/1/3/1/0/131070051/fipexuvelororej_juguliretafino_wokamewixa_gitirarijam.pdf
    • http://files.jamesalanconlan.org/uploads/1/3/1/6/131637038/a5cb99a6d6d1.pdf
    • http://files.masonphall.net/uploads/1/3/1/3/131380171/ee8f9d7.pdf
    • http://files.missionschurchorlando.com/uploads/1/3/0/9/130969313/6d545c1b873.pdf
    • http://files.travelsinacab.com/uploads/1/3/1/3/131384113/lazanizakowomuse.pdf
    • http://files.travelsin
    • https://cdn.shopify.com/s/files/1/0432/9875/0629/files/vijigogalasisibezunikug.pdf
    • https://cdn.shopify.com/s/files/1/0427/9359/9132/files/84359105527.pdf
    • https://cdn.shopify.com/s/files/1/0429/2853/7753/files/5002563597.pdf
    • https://cdn.shopify.com/s/files/1/0432/6513/0660/files/boximawidijetama.pdf
    • https://cdn.shopify.com/s/files/1/0428/4982/9023/files/55095135633.pdf
    • https://cdn.shopify.com/s/files/1/0436/4664/8473/files/85871180416.pdf
    • https://cdn.shopify.com/s/files/1/0437/1234/8315/files/10585151022.pdf
    • https://cdn.shopify.com/s/files/1/0437/6471/1575/files/97376653320.pdf
    • https://cdn.shopify.com/s/files/1/0436/4356/8278/files/18278910925.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/bijalikupuxamimidesedol.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_off0000857c.bin
b615654a60a15668419b991de715c31789edf7dfd1be2bb33f842937c9e0c69b
pdf-font-stream PDF embedded font (sfnt) at offset 0x857C 5100 bytes
font_01_sfnt_off000096ac.bin
3d5a9bfb5afd3f096c18cb2e73e352d13ca9d968e0d2812cc67d6a331ff21689
pdf-font-stream PDF embedded font (sfnt) at offset 0x96AC 10868 bytes
font_02_sfnt_off0000bbfb.bin
e296a61d2d303e35be9e1a35631556663d2780498efa7e8f3867bf557f172fe6
pdf-font-stream PDF embedded font (sfnt) at offset 0xBBFB 16164 bytes