Malicious PDF — malware analysis report

Static analysis result for SHA-256 c3f9b1626a266e04…

MALICIOUS

PDF

44.8 KB Created: 2020-08-05 23:13:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 67bb78a535487ec42262e65ce1fa05ae SHA-1: 5cb890ccbca33f6b320e3da98dab0cadd8b2d884 SHA-256: c3f9b1626a266e045428b6a455a7885b9f050eb4b317e944403aba6caee8a220
120 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with a critical heuristic firing indicating a link to known malicious redirector infrastructure. The document body, though partially obfuscated, contains text related to a 'holy bible in urdu pdf free download' lure, and the primary malicious URL is `https://ttraff.cc/pify?keyword=holy+bible+in+urdu+pdf+free+download`. This suggests a social engineering attack aiming to redirect users to malicious content.

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=holy+bible+in+urdu+pdf+free+download
    • http://files.calypsorosewellness.net/uploads/1/3/2/7/132741023/5202968.pdf
    • http://files.connielandis.com/uploads/1/3/1/3/131384335/fubokam.pdf
    • http://files.minecraftintheclassroom.com/uploads/1/3/0/7/130776646/burakaxikoz.pdf
    • http://files.zara-ahmad.com/uploads/1/3/1/4/131406736/tepev_saregulugulunu_fajubobazezuj.pdf
    • http://files.mkrishnan.org/uploads/1/3/0/7/130739719/53681a103b5b98d.pdf
    • https://cdn.shopify.com/s/files/1/0435/5047/4403/files/kugeredozilepari.pdf
    • https://cdn.shopify.com/s/files/1/0431/7295/4269/files/47847140627.pdf
    • https://cdn.shopify.com/s/files/1/0434/0210/0899/files/17777404690.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/87743453122.pdf
    • https://cdn.shopify.com/s/files/1/0429/9807/1449/files/34611175947.pdf
    • https://cdn.shopify.com/s/files/1/0432/9180/3801/files/set_theory_venn_diagram.pdf
    • https://cdn.shopify.com/s/files/1/0434/1956/6231/files/torutomugogab.pdf
    • https://cdn.shopify.com/s/files/1/0428/0749/2775/files/27207131251.pdf
    • https://cdn.shopify.com/s/files/1/0436/2957/6352/files/dnd_3._5_books.pdf
    • https://cdn.shopify.com/s/files/1/0429/6320/6307/files/kazatojikoxuvuful.pdf
    • https://cdn.shopify.com/s/files/1/0428/7964/7903/files/this_egg_glows_from_within.pdf
    • https://cdn.shopify.com/s/files/1/0428/4337/3735/files/nufatapum.pdf
    • https://cdn.shopify.com/s/files/1/0431/8763/4338/files/rakigakedonelomujovisu.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_off000059bf.bin
2adb073d0dd76c1fd78b94a2074896a53fc98349c3277b459c17f22c9a0a3425
pdf-font-stream PDF embedded font (sfnt) at offset 0x59BF 5152 bytes
font_01_sfnt_off00006b64.bin
a1f5ca9766e44f5ae66481b9e580ad6f1dab8a35a7cbc43ca44935081fe34b1c
pdf-font-stream PDF embedded font (sfnt) at offset 0x6B64 10432 bytes
font_02_sfnt_off00008f15.bin
ca0c2538279713f444d8ca53e02ad5dadbb6e88ab5872f5de8c2b297eec958f1
pdf-font-stream PDF embedded font (sfnt) at offset 0x8F15 16480 bytes