Malicious PDF — malware analysis report

Static analysis result for SHA-256 34ebc8dae8a3cd6d…

MALICIOUS

PDF

41.7 KB Created: 2020-08-22 03:37:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8bd1740f7af671e42de9809dece734c2 SHA-1: dffbd29a40fe85553838e8a2778eee17913f3bd2 SHA-256: 34ebc8dae8a3cd6d879c10771f5ebf588ff9ca087292d6ff5d72ca304579a21d
120 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many of which are hosted on Shopify. One critical heuristic identified a link to a known malicious redirector, ttraff.cc, which is used in a lure related to 'Bradescard app android'. This suggests the document's primary purpose is to redirect users to malicious sites, likely for phishing or malware distribution. No scripts were extracted from this sample.

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=bradescard+app+android
    • http://files.laurenandresurbanist.com/uploads/1/3/1/4/131452841/legilukifus.pdf
    • http://files.tambo.ca/uploads/1/3/1/3/131380308/f6f378e5.pdf
    • https://cdn.shopify.com/s/files/1/0430/4447/0945/files/atmel_studio_7_arduino_tutorial.pdf
    • https://cdn.shopify.com/s/files/1/0435/6662/9032/files/jazaxevubabexudep.pdf
    • https://cdn.shopify.com/s/files/1/0435/5021/2264/files/nexataweralimesorane.pdf
    • https://cdn.shopify.com/s/files/1/0432/1322/6143/files/76759606966.pdf
    • https://cdn.shopify.com/s/files/1/0434/0177/3212/files/roxefofunu.pdf
    • https://cdn.shopify.com/s/files/1/0434/6501/5460/files/xitasafetofogekuvafujimol.pdf
    • https://cdn.shopify.com/s/files/1/0438/8870/5688/files/graco_nautilus_65_manual.pdf
    • https://cdn.shopify.com/s/files/1/0447/7334/3383/files/presentation_analysis_and_interpretation_of_data_in_research.pdf
    • https://cdn.shopify.com/s/files/1/0430/8385/8080/files/zizod.pdf
    • https://cdn.shopify.com/s/files/1/0450/8113/3219/files/lonesome_train_gig_guide.pdf
    • https://cdn.shopify.com/s/files/1/0429/4197/2636/files/xorapurajuwalibe.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_off0000684f.bin
0aace3918ad9f8c6532166c8683830f712a04a2e3dd9dae55a12890ebe9bf349		 pdf-font-stream PDF embedded font (sfnt) at offset 0x684F 5084 bytes
font_01_sfnt_off000079a2.bin
59f9274946ebb7c4fba925c5efc1400f714097fbade89e12a94dbfcacb2a48d0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x79A2 9528 bytes

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