Malicious PDF — malware analysis report

Static analysis result for SHA-256 20ea609d8d85513b…

MALICIOUS

PDF

57.3 KB Created: 2020-08-20 10:51:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6ae9ea23c1104e1f870a87efbe28fa33 SHA-1: 1e93bcf6945f72b09ff679a2b305aa733cb32092 SHA-256: 20ea609d8d85513bf24231639099682299fb4bbc4ee7bb8e559b62c941f08428
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=dehati+anpadh+hari+re+song'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs, many hosted on Shopify. The document body, though heavily corrupted, also contains the primary malicious URL. The combination of these factors strongly suggests a social engineering attempt to lure the user to a malicious site.

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.com/pify?keyword=dehati+anpadh+hari+re+song
    • http://files.hannabiell.com/uploads/1/3/1/6/131636965/lebalo.pdf
    • http://fazob.applewayjoy.com/uploads/1/3/2/7/132711991/8185158.pdf
    • http://files.johnwestlakeods.com/uploads/1/3/2/6/132681482/nowimawewixibetu.pdf
    • https://cdn.shopify.com/s/files/1/0434/0878/5562/files/50655963785.pdf
    • https://cdn.shopify.com/s/files/1/0437/4636/1505/files/android_browser_full_screen_video.pdf
    • https://cdn.shopify.com/s/files/1/0440/2230/0822/files/jawimule.pdf
    • https://cdn.shopify.com/s/files/1/0430/6183/7981/files/32328811206.pdf
    • https://cdn.shopify.com/s/files/1/0431/1564/3031/files/zosewazusupiwala.pdf
    • https://cdn.shopify.com/s/files/1/0433/4105/4111/files/icao_annex_6_part_3.pdf
    • https://cdn.shopify.com/s/files/1/0431/5021/3274/files/36065059457.pdf
    • https://cdn.shopify.com/s/files/1/0437/0392/6939/files/vuporolitokejudix.pdf
    • https://cdn.shopify.com/s/files/1/0454/7529/9478/files/dry_adiabatic_lapse_rate.pdf
    • https://cdn.shopify.com/s/files/1/0430/3742/5818/files/6498706601.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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005950.bin
3788f9b6d144d5ba04c72bc9bd10ab9e4a50e52e401cd58dd3dccf589ec39cfa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5950 5188 bytes
font_01_sfnt_off00006ae2.bin
376b62b4f252c3b852fed21b0bd9be6cd80fa46e0709381b551826a2064b4fdc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6AE2 5360 bytes
font_02_sfnt_off00007e7b.bin
47503bbff56543f17527dc43a9fea1bc1f2a0d88be10b1ec18adab3219e7e112		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7E7B 13952 bytes
font_03_sfnt_off0000aa5c.bin
5b9dc5cdb24bbb40bad573dd0f59008f841fc342d469d3449b29c4760376f233		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAA5C 17324 bytes
font_04_sfnt_off0000c2b9.bin
8575b1adef60be433137a59a27f62c85262a2a733a681189eaa1c33eec8441d0		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC2B9 5864 bytes

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