Malicious PDF — malware analysis report

Static analysis result for SHA-256 f39230a35d852522…

MALICIOUS

PDF

42.5 KB Created: 2020-03-22 01:43:03 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 2e6eabb5354d4fed6c32152b9120075e SHA-1: 2426793ceaa44d32b14862edc99cb186ca6a1082 SHA-256: f39230a35d852522d796ad188ae4d80b5df95599933e011108ae30493e9386a0
104 Risk Score

Malware Insights

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

The PDF document contains numerous external links, many of which are numerically generated and appear to be part of a link farm, suggesting a SEO poisoning or spamming tactic. The document body mentions 'grand theft auto san andreas ppsspp game download', indicating a lure to a potentially malicious download. The presence of a 'Visible LOLBin command execution instruction' heuristic firing suggests that the document may attempt to execute commands, possibly to download or run further payloads.

Heuristics 4

  • 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.
  • Visible LOLBin command execution instruction high SE_LOLBIN_RUN_COMMAND
    Document contains instructions or visible command text involving Windows script/execution tools such as PowerShell, mshta, cmd, rundll32, or regsvr32
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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 http://essentiallywellrva.com/uploads/1/3/0/2/130270781/130270781.html#grand+theft+auto+san+andreas+ppsspp+game+download
    • http://www.millerscloset.com/uploads/1/3/0/2/130289561/vudivoposisof_nuriwovokite_furaregu_lexavunexe.pdf
    • http://uppercapechaplaincy.org/uploads/1/3/0/7/130738603/d238fa2608a482d.pdf
    • http://swwinesandspirits.com/uploads/1/3/0/5/130550835/ace706a088c.pdf
    • http://natashagrover204.com/uploads/1/3/0/7/130776716/8355616d0f8ccd.pdf
    • http://autodiscover.usualumnibookstore.com/uploads/1/3/0/8/130814935/wetawoderuf_nelis_zafivonavifu.pdf
    • http://mvmt101.com.au/uploads/1/3/1/1/131164546/zajakemezuveziv_xuvux_nigokova_xinoziwexejig.pdf
    • http://spccmd.com/uploads/1/3/0/6/130620759/gomeperiw-vulugotu-jalifaga.pdf
    • http://tekerra.com/uploads/1/3/0/6/130620198/4167334.pdf
    • http://mypccontractor.com/uploads/1/3/0/3/130323405/2f3a4d6a75.pdf
    • http://barbsplacehome.com/uploads/1/3/0/2/130289443/wadedogifotafe.pdf
    • http://spyclan.com/uploads/1/3/0/6/130604338/zamaxebed.pdf
    • http://laramyelick.com/uploads/1/3/1/0/131070105/5361646.pdf
    • http://smartbookkeepingusa.com/uploads/1/3/0/4/130489220/8edb1acb1ba3c.pdf
    • http://thgrill.com/uploads/1/3/0/6/130622063/712362.pdf
    • http://elysian.support/uploads/1/3/0/4/130475921/romuzim_matemazem.pdf
    • http://befearlessandplay.com/uploads/1/3/0/7/130776420/29313d1a.pdf
    • http://motomomfuel.com/uploads/1/3/0/7/130740013/xetaz.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 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007c45.bin
4a7bbf10c37b7442077a224b28a4b117741feaf9feb9a3e146463cbc2353a940
pdf-font-stream PDF embedded font (sfnt) at offset 0x7C45 8256 bytes