Malicious PDF — malware analysis report

Static analysis result for SHA-256 b710d5df4e421ee9…

MALICIOUS

PDF

108.5 KB Created: 2020-07-18 09:44:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 939fcbd1c122a172d8d8d827be253cb1 SHA-1: a0f505f63a462d4a5295f6044591b52a11ca0e17 SHA-256: b710d5df4e421ee960d6691e5535b09f10e44d57cd4f1aee6c25800011aae1c1
120 Risk Score

Malware Insights

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

The PDF file contains a link that redirects to a malicious URL, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains text related to a 'Toyota avanza type g 2020 manual', suggesting a lure. The PDF also exhibits characteristics of a link farm, with numerous external links, as indicated by the PDF_SEO_LINK_FARM heuristic. The primary malicious IOC is the redirector URL.

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=toyota+avanza+type+g+2020+manual
    • http://files.douglasclarkhypnosis.com/uploads/1/3/0/7/130775856/6837670.pdf
    • http://files.lionsofwarminster.net/uploads/1/3/1/4/131482930/repululevalepad.pdf
    • http://files.vukoandric.com/uploads/1/3/1/4/131437276/dunexexatojag.pdf
    • https://toximutuzowu.files.wordpress.com/2020/06/patefawobiraduzixewolok.pdf
    • https://remaxobiran480113780.files.wordpress.com/2020/07/revonovefovezaxi.pdf
    • https://xujonajodezo.files.wordpress.com/2020/06/vitowelojokalizikodiwefep.pdf
    • https://xejolaxutibu.files.wordpress.com/2020/06/mebopinixelilekumis.pdf
    • https://nepogire.files.wordpress.com/2020/07/mevilovizugi.pdf
    • https://kexunezelip.files.wordpress.com/2020/06/laguxapisaloxi.pdf
    • https://wazutiwivagu.files.wordpress.com/2020/06/30542508342.pdf
    • https://cdn.shopify.com/s/files/1/0431/6338/6016/files/kexesutelatibamubuf.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wadilizesiwegokadokepub.pdf
    • https://cdn.shopify.com/s/files/1/0430/3791/7333/files/19504185923.pdf
    • https://cdn.shopify.com/s/files/1/0429/0379/7913/files/kefaneker.pdf
    • https://cdn.shopify.com/s/files/1/0430/2657/9610/files/zimiwadubirizegadarew.pdf
    • https://cdn.shopify.com/s/files/1/0431/6997/2392/files/busarukasatobaj.pdf
    • https://cdn.shopify.com/s/files/1/0430/1769/9477/files/50699434444.pdf
    • https://cdn.shopify.com/s/files/1/0429/6717/1223/files/xekapobidinaxut.pdf
    • https://cdn.shopify.com/s/files/1/0431/6741/6488/files/10295376018.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/gifizazuxapi.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_off0000fc01.bin
525dfe8274c683d886ccd9767a783d05b4da657b949338306701e7dfa0aa8f3b		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFC01 16148 bytes
font_01_sfnt_off00012fcb.bin
1463120d9624ea6a90a5d493a8700738044584cd61f3beaf37e53ceea33de65d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12FCB 5136 bytes
font_02_sfnt_off00014149.bin
691e6ea8f28032ccbb00249610f47fe65e69a58865ff1892674be6925d9dd236		 pdf-font-stream PDF embedded font (sfnt) at offset 0x14149 10204 bytes
font_03_sfnt_off00015dbd.bin
761c2cc69d4dc76ec4f18e6f5537bfcc114db624a10bf3b10a9d8dd36d22eca6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x15DBD 15304 bytes
font_04_sfnt_off00018d98.bin
b10e7a0583bf6b216a5471aeed10f14210f1dda3adb60ac5169fcb38ba12e60c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x18D98 16060 bytes

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