Malicious PDF — malware analysis report

Static analysis result for SHA-256 e4b19f603e2fe804…

MALICIOUS

PDF

44.9 KB Created: 2020-08-09 17:47:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4b3d1927c49e66e6ee5428b30a6570ab SHA-1: f5438da46fb6f5f489fa8104f696b4508e5956be SHA-256: e4b19f603e2fe8043b05165b274156c85b0b60120ae6404be4153cda44f9b285
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to external resources. One critical heuristic identified a link to a known malicious redirector, 'https://ttraff.cc/pify?keyword=airline+airport+codes+pdf', which is likely intended to deliver a malicious payload. The document body, though heavily obfuscated, contains references to airline airport codes, suggesting a lure to entice users to click the malicious link. The presence of numerous other PDF links further supports the SEO link farm heuristic, indicating an attempt to manipulate search engine results or distribute content widely.

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=airline+airport+codes+pdf
    • http://files.subnum.org/uploads/1/3/1/1/131163667/9952068.pdf
    • http://files.jmaxey.net/uploads/1/3/0/7/130775382/suzotemuw.pdf
    • http://files.dancingchickjams.com/uploads/1/3/1/4/131437474/cca693a.pdf
    • https://cdn.shopify.com/s/files/1/0436/0473/8206/files/zevojesolagun.pdf
    • https://cdn.shopify.com/s/files/1/0435/4146/3204/files/26350182103.pdf
    • https://cdn.shopify.com/s/files/1/0431/7410/1160/files/album_title_generator.pdf
    • https://cdn.shopify.com/s/files/1/0427/8799/5807/files/dagevosotubikopow.pdf
    • https://cdn.shopify.com/s/files/1/0435/5712/6295/files/27888860974.pdf
    • https://cdn.shopify.com/s/files/1/0431/7901/6360/files/buzuxunatexuxapelut.pdf
    • https://cdn.shopify.com/s/files/1/0427/6197/8023/files/77818238935.pdf
    • https://cdn.shopify.com/s/files/1/0433/4098/8575/files/kivipobunojokuwepog.pdf
    • https://cdn.shopify.com/s/files/1/0433/8493/0462/files/voges.pdf
    • https://cdn.shopify.com/s/files/1/0431/4251/2802/files/nekanovudexusufukirite.pdf
    • https://cdn.shopify.com/s/files/1/0427/5575/2103/files/62891312037.pdf
    • https://cdn.shopify.com/s/files/1/0427/5650/5756/files/74039562291.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_off0000638a.bin
7ab29fb854917bf236ada097b0c016dc87ac8477bd742d622a814f56cafdb433
pdf-font-stream PDF embedded font (sfnt) at offset 0x638A 4928 bytes
font_01_sfnt_off00007449.bin
28a894cd6cb2ac2ec2a02bf4b326aa16a8847039cdc6ac57f7086f59955d53ff
pdf-font-stream PDF embedded font (sfnt) at offset 0x7449 10604 bytes
font_02_sfnt_off00009889.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3
pdf-font-stream PDF embedded font (sfnt) at offset 0x9889 4324 bytes