Malicious PDF — malware analysis report

Static analysis result for SHA-256 8eeb72012f87b3d5…

MALICIOUS

PDF

46.6 KB Created: 2020-08-20 14:27:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 781b247d1ebbda2bb28eb1b32284aa58 SHA-1: 09c36930c974a12624069a24dd6946319f4c06e8 SHA-256: 8eeb72012f87b3d5960571e14182375bd5ff98c1ff5a2d740e29ae971f359279
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, which is also present in the document body. This link, 'https://ttraff.cc/pify?keyword=modern+combat+5+android+tv+apk', is designed to lure users into downloading potentially malicious content. The document also exhibits characteristics of a link farm, with numerous embedded URLs pointing to various PDF files, likely for SEO manipulation or to host further 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=modern+combat+5+android+tv+apk
    • http://sunopir.bizsupportservices.com/uploads/1/3/2/3/132302921/793048.pdf
    • http://rolofajuw.stnicholaschurch-shepperton.org/uploads/1/3/2/6/132682327/5715403.pdf
    • http://logox.blacnflatcoatedretrievers.com/uploads/1/3/1/4/131438282/fedukizopija.pdf
    • http://pogez.allegraclark.com/uploads/1/3/0/7/130776485/cce768a1283eb.pdf
    • https://cdn.shopify.com/s/files/1/0434/0816/2974/files/33178277088.pdf
    • https://cdn.shopify.com/s/files/1/0437/5347/2151/files/calendario_lunar_2020_peru.pdf
    • https://cdn.shopify.com/s/files/1/0432/2433/4498/files/tumezanik.pdf
    • https://cdn.shopify.com/s/files/1/0430/7491/2410/files/2568034121.pdf
    • https://cdn.shopify.com/s/files/1/0436/7617/2441/files/basic_algorithms_in_c.pdf
    • https://cdn.shopify.com/s/files/1/0429/0933/5715/files/calendario_de_vacunas_2018_chile.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tovaje.pdf
    • https://cdn.shopify.com/s/files/1/0435/6934/8763/files/cbse_class_12_history_syllabus.pdf
    • https://cdn.shopify.com/s/files/1/0434/4345/4102/files/29510187489.pdf
    • https://cdn.shopify.com/s/files/1/0444/6345/6423/files/electrical_engineering_abbreviations_list.pdf
    • https://cdn.shopify.com/s/files/1/0430/2834/9079/files/back_cracking_techniques.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_off00006dd8.bin
d4530382943a911296c13dbf51066cd11083f0ad7364bf0811bb493aab97c87d
pdf-font-stream PDF embedded font (sfnt) at offset 0x6DD8 5404 bytes
font_01_sfnt_off00008027.bin
aaa80601a2608e271ff07f3454be47ef7d32631445401feb96b0fadbd1c0d6a2
pdf-font-stream PDF embedded font (sfnt) at offset 0x8027 1680 bytes
font_02_sfnt_off00008893.bin
f17d25d15557d6a6cf983537b20637eb0d60e9491883dfcfdc7c9f07fcc61d27
pdf-font-stream PDF embedded font (sfnt) at offset 0x8893 10644 bytes