Malicious PDF — malware analysis report

Static analysis result for SHA-256 301606a2e91a7bee…

MALICIOUS

PDF

46.7 KB Created: 2020-08-02 02:43:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8e225cee09190a0dbc677843a7347adb SHA-1: 10665c747d943fe347a339a01dc431bd68e643f6 SHA-256: 301606a2e91a7bee725235fe38f8f690c5173f77f23ea2f5f0fd43dcfe14d958
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.ru/pify?keyword=16+inch+in+cm'. Additionally, it exhibits a PDF link farm behavior, embedding numerous external PDF links, with the primary one being 'https://cdn.shopify.com/s/files/1/0428/0185/6668/files/24459092344.pdf'. The document body, though heavily obfuscated, contains the malicious URL, suggesting a lure to trick users into clicking on it.

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.ru/pify?keyword=16+inch+in+cm
    • http://files.goodmeasureliving.com/uploads/1/3/2/7/132712282/kumozoz_xabufiwuraxuben_sudolujum_mugivibebuvesem.pdf
    • http://files.byyoursidepet.com/uploads/1/3/1/4/131453615/a55dba3cb30d48b.pdf
    • http://files.carafegeorgetown.com/uploads/1/3/1/4/131406068/2702357.pdf
    • http://files.mosaicwellington.org/uploads/1/3/1/3/131379830/xujajuvedamegekimu.pdf
    • https://cdn.shopify.com/s/files/1/0428/0185/6668/files/24459092344.pdf
    • https://cdn.shopify.com/s/files/1/0431/1089/1680/files/diwokus.pdf
    • https://cdn.shopify.com/s/files/1/0434/2926/5564/files/jamulupadobejinipujuzibud.pdf
    • https://cdn.shopify.com/s/files/1/0431/3071/6322/files/3897171049.pdf
    • https://cdn.shopify.com/s/files/1/0431/7829/5450/files/dasodopomux.pdf
    • https://cdn.shopify.com/s/files/1/0434/0921/1557/files/12461723999.pdf
    • https://cdn.shopify.com/s/files/1/0427/7207/0556/files/dugasurekunejifesuwejumom.pdf
    • https://cdn.shopify.com/s/files/1/0432/2754/5757/files/19022067939.pdf
    • https://cdn.shopify.com/s/files/1/0434/8349/6600/files/gimekusikitexif.pdf
    • https://cdn.shopify.com/s/files/1/0429/8211/3433/files/xuxokakuxam.pdf
    • https://cdn.shopify.com/s/files/1/0430/3123/2674/files/zofanudodudeb.pdf
    • https://cdn.shopify.com/s/files/1/0432/9383/5432/files/25085437728.pdf
    • https://cdn.shopify.com/s/files/1/0430/3552/5282/files/fuzzy_lookup_excel.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/
    • https://cdn.shopify.com/s/files/1/0430/3123/2674/files/zof

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000063f7.bin
707d72de546292dce7a205afd007e664fce0990f9bb9b5b79180b57e01d18d4d
pdf-font-stream PDF embedded font (sfnt) at offset 0x63F7 4636 bytes
font_01_sfnt_off0000739f.bin
56c5ed4fe1e6099ae1025b0b3b43a0a42b38a96d4eb1a24a57330fd607c1b7ea
pdf-font-stream PDF embedded font (sfnt) at offset 0x739F 10120 bytes
font_02_sfnt_off00009669.bin
ad7e4d70107504c68debd8b81749d88ec9432fecb0d9854fe1b4b7787974aa54
pdf-font-stream PDF embedded font (sfnt) at offset 0x9669 16344 bytes