Malicious PDF — malware analysis report

Static analysis result for SHA-256 05f47a6d13a70e27…

MALICIOUS

PDF

52.8 KB Created: 2020-08-06 22:42:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 28a064b7c51b7e91b992c399afa83386 SHA-1: c81e97f3ab5b511094e9e215ad9fcdfb18b1056a SHA-256: 05f47a6d13a70e27226efad39904b2c578d55dcbc690004cf39ec7b84daca210
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a heuristic firing for linking to known malicious redirector infrastructure, specifically the URL https://ttraff.cc/pify?keyword=agile+project+management+handbook+version+2.+0+pdf. This URL is presented within the document body, disguised as a legitimate document title, indicating a social engineering lure. The presence of a large number of external PDF links further suggests a link farm or SEO poisoning attempt to distribute malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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=agile+project+management+handbook+version+2.+0+pdf
    • http://relotat.drterriweaver.com/uploads/1/3/1/3/131380600/9b05a3cf8.pdf
    • http://files.carpetcleaningislavista.com/uploads/1/3/1/4/131406149/gilawabizajo.pdf
    • http://files.puzzledog.ca/uploads/1/3/0/7/130775551/megikemane-wafurumebos-vadobuvomufifo-relok.pdf
    • http://files.thewanderingbays.com/uploads/1/3/1/4/131453985/0a73d4e1c5.pdf
    • http://fedorahosted.org/lohit
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0431/1787/1265/files/gogorawipanifo.pdf
    • https://cdn.shopify.com/s/files/1/0431/4903/3640/files/password_keeper_printable.pdf
    • https://cdn.shopify.com/s/files/1/0438/8637/9160/files/23706334135.pdf
    • https://cdn.shopify.com/s/files/1/0429/6962/8828/files/gajurepol.pdf
    • https://cdn.shopify.com/s/files/1/0431/4903/3640/files/zozamosalut.pdf
    • https://cdn.shopify.com/s/files/1/0434/7055/3238/files/zulidexugidudamanume.pdf
    • https://cdn.shopify.com/s/files/1/0433/9187/7283/files/51827286905.pdf
    • https://cdn.shopify.com/s/files/1/0437/9397/3405/files/62964714257.pdf
    • https://cdn.shopify.com/s/files/1/0431/3058/5250/files/kitujageturivi.pdf
    • https://cdn.shopify.com/s/files/1/0434/3876/8294/files/36166413478.pdf
    • https://cdn.shopify.com/s/files/1/0431/9661/2768/files/82283381142.pdf
    • https://cdn.shopify.com/s/files/1/0438/2212/1122/files/tidaluwivale.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off000078d4.bin
e523fc9a543a3227d92f553d33b69511729ec5e71e7b3dc3ef9b2426fbcd87d3		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x78D4 13296 bytes
font_00_sfnt_off000063d2.bin
891d902c9ff75b2e4ff07fc176fbad769e580603ab0e238662df98af1bd73bf6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x63D2 6204 bytes
font_02_sfnt_off00009ad2.bin
e494dccd26d270b798712c29499d1199a48a82a02b844383fbd64895ea0c3a54		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9AD2 13608 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.