Malicious PDF — malware analysis report

Static analysis result for SHA-256 f1647ffbd3925f59…

MALICIOUS

PDF

39.7 KB Created: 2020-08-08 10:33:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1772a56ce0f2c9d8fda57584cbca6b57 SHA-1: b5eb2267f5d32005c0de0761a59264b33305ad35 SHA-256: f1647ffbd3925f593122cd9512475b23d1463b7f3004b848bd6c0ca577439721
140 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link T1059.001 PowerShell

The PDF contains a malicious redirector link disguised as a technical document download, which is a common lure for phishing or malware delivery. It also features a large number of links to other PDFs hosted on Shopify, potentially for SEO manipulation or to serve as a link farm for malicious content. The presence of a callback lure suggests a potential for further social engineering or direct interaction with the victim. No scripts were extracted, limiting the analysis of direct payload execution.

Heuristics 4

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • 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=practical+antenna+design+pdf
    • http://nuvit.hudsonsdairy.com/uploads/1/3/0/8/130813765/pabowegutig_fajoj.pdf
    • http://files.jacobhudgins.com/uploads/1/3/1/4/131453984/44024.pdf
    • http://files.lavenderhousereflexology.com/uploads/1/3/2/8/132815807/kuzab_gozonog.pdf
    • https://cdn.shopify.com/s/files/1/0435/7505/0395/files/92501136716.pdf
    • https://cdn.shopify.com/s/files/1/0429/7100/5082/files/barbara_oakley_books.pdf
    • https://cdn.shopify.com/s/files/1/0446/0986/3843/files/piano_sheet_music_beauty_and_the_beast.pdf
    • https://cdn.shopify.com/s/files/1/0432/5897/0280/files/love_story_english.pdf
    • https://cdn.shopify.com/s/files/1/0429/6998/9279/files/15738873804.pdf
    • https://cdn.shopify.com/s/files/1/0431/4536/3610/files/zukatulibasetonugaji.pdf
    • https://cdn.shopify.com/s/files/1/0436/9884/7896/files/pozibimukovod.pdf
    • https://cdn.shopify.com/s/files/1/0434/1301/2641/files/dedelikenexo.pdf
    • https://cdn.shopify.com/s/files/1/0438/6829/1232/files/rowepetusebogujujuxew.pdf
    • https://cdn.shopify.com/s/files/1/0434/0023/3112/files/xaxufimewejafixuzegoveju.pdf
    • https://cdn.shopify.com/s/files/1/0431/8960/0414/files/8328935670.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_off00004e10.bin
0ecad409b2c1aaf542961f0e574e5397d557f088ad357611b945e44096fd8188
pdf-font-stream PDF embedded font (sfnt) at offset 0x4E10 5004 bytes
font_01_sfnt_off00005f0e.bin
af86a8bccc6ceb551a2eb55cab419a057b6f3d4a6aa0c89f07b9cde167c25bc8
pdf-font-stream PDF embedded font (sfnt) at offset 0x5F0E 10372 bytes
font_02_sfnt_off0000828b.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2
pdf-font-stream PDF embedded font (sfnt) at offset 0x828B 4324 bytes