Malicious PDF — malware analysis report

Static analysis result for SHA-256 f15533064156d486…

MALICIOUS

PDF

64.7 KB Created: 2020-08-07 21:00:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 51862ef235cb17c7d8f0ff257efd47e7 SHA-1: 509d45ba8c9021e5004c05ce429a4f69335d32be SHA-256: f15533064156d486acd6315c5d6474ef285a05b5839c107242a186ec85561c1b
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=anne+bradstreet+the+prologue+pdf'. Additionally, it exhibits characteristics of a link farm, with numerous external PDF links, including one to 'https://cdn.shopify.com/s/files/1/0440/5841/1158/files/dr_dre_xxplosive.pdf'. The document body, though heavily obfuscated, contains the same redirector URL, reinforcing its malicious intent. No scripts were extracted, limiting further analysis of execution behavior.

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=anne+bradstreet+the+prologue+pdf
    • http://files.pattyusheribclc.com/uploads/1/3/0/9/130969300/311979.pdf
    • http://files.miramissions.org/uploads/1/3/1/3/131380258/9342009.pdf
    • http://files.osykastudio.com/uploads/1/3/1/6/131637652/4718933.pdf
    • http://files.dirksalomon.de/uploads/1/3/1/4/131406437/degesoti.pdf
    • https://cdn.shopify.com/s/files/1/0440/5841/1158/files/dr_dre_xxplosive.pdf
    • https://cdn.shopify.com/s/files/1/0431/5496/4637/files/wunesedekibevaxariji.pdf
    • https://cdn.shopify.com/s/files/1/0427/6636/8935/files/cara_membuat_cv_dengan_format.pdf
    • https://cdn.shopify.com/s/files/1/0430/2936/4889/files/mamun.pdf
    • https://cdn.shopify.com/s/files/1/0428/8957/6601/files/wupitefanesesoretijebuz.pdf
    • https://cdn.shopify.com/s/files/1/0428/5323/6902/files/71654061188.pdf
    • https://cdn.shopify.com/s/files/1/0432/4042/3592/files/pulse_width_modulation_principle.pdf
    • https://cdn.shopify.com/s/files/1/0438/0560/6049/files/17563161146.pdf
    • https://cdn.shopify.com/s/files/1/0434/1586/3447/files/88711348070.pdf
    • https://cdn.shopify.com/s/files/1/0431/9156/6493/files/affiliate_marketing_download.pdf
    • https://cdn.shopify.com/s/files/1/0436/2525/0974/files/89805613017.pdf
    • https://cdn.shopify.com/s/files/1/0431/2953/6676/files/90136661854.pdf
    • https://cdn.shopify.com/s/files/1/0432/0228/1633/files/84492544148.pdf
    • https://cdn.shopify.com/s/files/1/0431/3333/7768/files/sepubamem.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_off0000b245.bin
a973fa56d1005762d08ed3ba53a7df8d2b77a47c1e338bcdcc203b0c5e3e372d
pdf-font-stream PDF embedded font (sfnt) at offset 0xB245 5268 bytes
font_01_sfnt_off0000c416.bin
518895af86f9635ee30cb7e940ae5a8a649fa5c8076e868c8d5f6325215aae2a
pdf-font-stream PDF embedded font (sfnt) at offset 0xC416 10276 bytes
font_02_sfnt_off0000e76e.bin
cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34
pdf-font-stream PDF embedded font (sfnt) at offset 0xE76E 4324 bytes