Malicious PDF — malware analysis report

Static analysis result for SHA-256 a18491f279b81084…

MALICIOUS

PDF

82.6 KB Created: 2020-08-05 08:28:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7018bba4db8406e95ed0ac7ad7af1f2a SHA-1: 27a38c527e2b054934f25936c5c520e07c511ac7 SHA-256: a18491f279b810842bb1c000fae7b46a448c904f72835be0c82d10bec20ea61e
120 Risk Score

Malware Insights

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

The PDF contains a mass of external links, including one identified as a malicious redirector. The document body, though heavily obfuscated, contains the string 'Ancient civilizations of north america pdf' and the malicious URL 'https://ttraff.cc/pify?keyword=ancient+civilizations+of+north+america+pdf', suggesting a lure to download a PDF. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' confirms the presence of a link to known malicious infrastructure.

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=ancient+civilizations+of+north+america+pdf
    • http://files.gretcheneverett.com/uploads/1/3/0/7/130775045/wadolurikodamaj_vibuz_lixixijub.pdf
    • http://files.victoriaprather.com/uploads/1/3/0/7/130775274/368c46e.pdf
    • http://files.pieplacechatt.com/uploads/1/3/0/8/130873840/019dd08.pdf
    • http://files.kelvynkoning.com/uploads/1/3/0/7/130776077/mizefapagalarol.pdf
    • https://cdn.shopify.com/s/files/1/0431/9959/4656/files/xuvuzivo.pdf
    • https://cdn.shopify.com/s/files/1/0440/2066/2422/files/86132796895.pdf
    • https://cdn.shopify.com/s/files/1/0440/2964/0854/files/old_macdonald_had_a_farm_lyrics_english.pdf
    • https://cdn.shopify.com/s/files/1/0427/9477/8791/files/kanipenadakimix.pdf
    • https://cdn.shopify.com/s/files/1/0432/7391/2488/files/nowomixozofazi.pdf
    • https://cdn.shopify.com/s/files/1/0432/1568/3744/files/dehydration_in_infants.pdf
    • https://cdn.shopify.com/s/files/1/0429/5327/7589/files/abstract_algebra_an_introduction_thomas_hungerford.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zozaweguxilamefawe.pdf
    • https://cdn.shopify.com/s/files/1/0428/0591/9903/files/virude.pdf
    • https://cdn.shopify.com/s/files/1/0429/8866/7034/files/pinoxugenevuwidadaba.pdf
    • https://cdn.shopify.com/s/files/1/0428/0100/4707/files/98306153351.pdf
    • https://cdn.shopify.com/s/files/1/0447/9270/9271/files/big_5_personality_test_questions.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_off0000edb4.bin
3f9179c2a23458cf83c5ef8a90110d184a1987f5318e34a2160d4d4b66f35478
pdf-font-stream PDF embedded font (sfnt) at offset 0xEDB4 5284 bytes
font_01_sfnt_off0000ff7e.bin
945cf01fe1f8c789b860c674fe87fe3bdbf6de2a09dca49360dcc4542d5950f4
pdf-font-stream PDF embedded font (sfnt) at offset 0xFF7E 15288 bytes
font_02_sfnt_off00012ed5.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3
pdf-font-stream PDF embedded font (sfnt) at offset 0x12ED5 4324 bytes