Malicious PDF — malware analysis report

Static analysis result for SHA-256 beb558227f4f025d…

MALICIOUS

PDF

49.6 KB Created: 2020-07-30 22:21:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 77f3dbd54708de12d957fae5d7666545 SHA-1: 3b5a467b1077f52d88d1b75053e4f443ecec68b9 SHA-256: beb558227f4f025d1200d704b4793a3791afcc75e08888e09de3780ed38f5fbe
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1200 Hardware Add-in T1059.001 PowerShell

The PDF file contains a large number of embedded links, identified as a PDF link farm. The primary link, 'https://ttraff.cc/pify?keyword=case+study+research+strategy+pdf', is a known malicious redirector. The document body, though heavily obfuscated, suggests a lure related to 'case study research strategy pdf'. The presence of numerous external links, many hosted on Shopify, indicates an attempt to drive traffic to potentially malicious or compromised sites, likely for phishing or malware distribution.

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=case+study+research+strategy+pdf
    • http://files.anynightaustin.com/uploads/1/3/1/4/131411762/6163305.pdf
    • http://files.iseeilearn.com/uploads/1/3/0/7/130775848/ropub.pdf
    • http://files.fireflytoysandgames.com/uploads/1/3/2/7/132740371/d026fa9fa.pdf
    • https://cdn.shopify.com/s/files/1/0429/0494/4807/files/48601338001.pdf
    • https://cdn.shopify.com/s/files/1/0435/1442/9608/files/jogunusibezupoxoki.pdf
    • https://cdn.shopify.com/s/files/1/0430/1019/5605/files/zunonita.pdf
    • https://cdn.shopify.com/s/files/1/0431/6381/2002/files/31287478123.pdf
    • https://cdn.shopify.com/s/files/1/0431/5892/9570/files/gekaxejekididorisopemarug.pdf
    • https://cdn.shopify.com/s/files/1/0431/8117/9048/files/32640615152.pdf
    • https://cdn.shopify.com/s/files/1/0434/2228/5976/files/22706224942.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/3785448733.pdf
    • https://cdn.shopify.com/s/files/1/0441/4016/7320/files/tatakebarumabeligupif.pdf
    • https://cdn.shopify.com/s/files/1/0429/6579/4965/files/merasusew.pdf
    • https://cdn.shopify.com/s/files/1/0438/9352/2587/files/22454369809.pdf
    • https://cdn.shopify.com/s/files/1/0438/0976/7584/files/movudiwusava.pdf
    • https://cdn.shopify.com/s/files/1/0433/8538/9221/files/pujus.pdf
    • https://cdn.shopify.com/s/files/1/0436/5107/2153/files/41956229723.pdf
    • https://cdn.shopify.com/s/files/1/0430/5872/5018/files/zisawomanupuzivisaxiba.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_off00008189.bin
ff83e95fdb7146576bc3dedf3a7d90c2694f86fa94db94e5b7cc43be76bf2adf
pdf-font-stream PDF embedded font (sfnt) at offset 0x8189 5128 bytes
font_01_sfnt_off0000931c.bin
ecf797b70ec64b24fdea61cc6c28144f427648066be7a2bdb254d6742ae958ad
pdf-font-stream PDF embedded font (sfnt) at offset 0x931C 11068 bytes