Malicious PDF — malware analysis report

Static analysis result for SHA-256 239edda22dbf53e1…

MALICIOUS

PDF

46.2 KB Created: 2020-09-10 22:50:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7db6be5251b8618520d6991e55bfa936 SHA-1: 4b4310921308231c5226307b0cdead6fb8364d5d SHA-256: 239edda22dbf53e117d015ed7218782b31964e97bff9a7485db973f4a492fbd9
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 Malicious Link T1059.001 PowerShell

The PDF file contains a heuristic match for a malicious redirector link, specifically pointing to 'https://ttraff.link/wix?keyword=crystal+report+designer+online'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external PDF links, many of which host potentially malicious content. The document body, though heavily obfuscated, contains the same lure text and URLs, reinforcing the malicious intent.

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.link/wix?keyword=crystal+report+designer+online
    • http://files.muslimahcommunitygroup.com/uploads/1/3/1/6/131606666/d32f7.pdf
    • http://files.prtesol.org/uploads/1/3/0/7/130776403/ba436ea20091b8.pdf
    • http://files.travelwithjean.com/uploads/1/3/0/7/130739906/gefifewitatid.pdf
    • http://dojoki.englishcentral.info/uploads/1/3/0/7/130776485/sadonizoxupinolu.pdf
    • https://static.usrfiles.com/ugd/078c79_11a35aa30b85454e9bb5f085b5da28e6.pdf
    • https://cdn.shopify.com/s/files/1/0435/4618/1787/files/pumubofusefakun.pdf
    • https://cdn.shopify.com/s/files/1/0433/4059/5352/files/vadizepesej.pdf
    • https://cdn.shopify.com/s/files/1/0459/0062/8122/files/9146060174.pdf
    • https://cdn.shopify.com/s/files/1/0428/9495/0556/files/i_dreamed_a_dream_free_piano.pdf
    • https://cdn.shopify.com/s/files/1/0433/4590/3781/files/1815068603.pdf
    • https://cdn.shopify.com/s/files/1/0429/6779/3820/files/13068506459.pdf
    • https://cdn.shopify.com/s/files/1/0434/7471/4790/files/lagu_barat_123_net.pdf
    • https://cdn.shopify.com/s/files/1/0450/0068/7780/files/simple_ukulele_chord_chart.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_off000061a8.bin
3cdc5d70ddf8e1f26383907427197f6326b875af2cfa430140c1180191e2132c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x61A8 5132 bytes
font_01_sfnt_off00007334.bin
b09e14e429f248bdd6b10879ab4ae2dd3c72b62269876b100a9f8ba04f236191		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7334 10488 bytes
font_02_sfnt_off00009739.bin
3b1167557c0500c78008053c404847a906c4d495ef15adec583fc97e76626070		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9739 16068 bytes

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