Malicious PDF — malware analysis report

Static analysis result for SHA-256 b91c52959b00df65…

MALICIOUS

PDF

78.0 KB Created: 2021-03-18 09:46:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 437b62c9196b508f7466f2e1451c99df SHA-1: 72673a97731c979e7b3ec42bdf4b0060328b19e8 SHA-256: b91c52959b00df65762743b3b268d94e298562a184b0f7f9c796222757b0d7ea
96 Risk Score

Malware Insights

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

This PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains multiple embedded URLs, with the primary suspicious URL being https://jumiwimov.ru/strik. The document body, though heavily obfuscated, suggests a lure related to 'Forex fundamental analysis strategy pdf'. No scripts were extracted, but the presence of external URIs and the overall detection suggest the file is designed to lead the user to a malicious site or download further malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://jumiwimov.ru/strik?utm_term=forex+fundamental+analysis+strategy+pdf
    • https://nuzalegexokoz.weebly.com/uploads/1/3/0/8/130814177/xosoriwikoj.pdf
    • https://cdn-cms.f-static.net/uploads/4484997/normal_5fd145ae6b3c5.pdf
    • https://sekatuxu.weebly.com/uploads/1/3/4/8/134894727/dedikopirufarinab.pdf
    • http://zizodoroluxonaf.sportsontheweb.net/55995717490.pdf
    • https://cdn-cms.f-static.net/uploads/4426543/normal_5fd136bfc7cd8.pdf
    • https://xazojitov.weebly.com/uploads/1/3/1/4/131408465/xobazanoxo.pdf
    • https://gadudomarun.weebly.com/uploads/1/3/4/7/134705140/gapawenuk-jamux-nepisibeboman-wedagis.pdf
    • https://tiwebusimevadeb.weebly.com/uploads/1/3/5/3/135346158/guwulivuluvone-vapeludatu.pdf
    • https://static.s123-cdn-static.com/uploads/4365649/normal_5ffc8009db4ad.pdf
    • http://wutopezogegusi.getenjoyment.net/sakijiwudalunepewepiw.pdf
    • https://static.s123-cdn-static.com/uploads/4470014/normal_6007287f0a16f.pdf
    • https://firunonosud.weebly.com/uploads/1/3/6/0/136052948/bevasusasineb-zegafuxuzur-bafugewelibe.pdf
    • https://gigojajalul.weebly.com/uploads/1/3/4/3/134320096/rasufarato.pdf
    • https://jegobagugixados.weebly.com/uploads/1/3/4/8/134858953/xoduwanelit_fagigejogejum_lizuvodize.pdf
    • https://cdn-cms.f-static.net/uploads/4403120/normal_604504a07e58f.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://teboseru.rf.gd/social_media_marketing_report_ppt.pdf
    • http://satuvet.epizy.com/autothermal_reforming_process_flow_diagram.pdf
    • http://zefinut.rf.gd/12507988909.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f4d2.bin
19cffae08757dbfbcb708f4bb9afa352c1c4c561673219958b0e164a35c942e2
pdf-font-stream PDF embedded font (sfnt) at offset 0xF4D2 5484 bytes
font_01_sfnt_off0001077e.bin
f126eac971b6acd9b4cf0a28c4446a46b2efc624d8b333dda2b7cddc18247e0a
pdf-font-stream PDF embedded font (sfnt) at offset 0x1077E 10424 bytes