Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5d657520968e73f…

MALICIOUS

PDF

32.0 KB Authoring application: LibreOffice Draw
MD5: 6b7cd57581bf407465ada2f79dcf0664 SHA-1: 0666062f0be16dd6fbad40fdd46606e5d2698ba0 SHA-256: c5d657520968e73f8e4e5359fc473a007fb08da74520855ddfc3550a31432f4c
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded URLs pointing to external PDF documents. This technique, identified by the PDF_SEO_LINK_FARM heuristic, is commonly used to distribute phishing content or redirect users to malicious websites. The ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0 further supports the phishing classification. The document body itself contains garbled text and references to programming languages, which is likely obfuscation or irrelevant metadata.

Heuristics 3

  • 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.
  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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://sukikoxeri.sloto-cash.ru/uploads/2020/01/28/sogavemunomexemu.pdf
    • http://rodeg.katalog-z.com/uploads/2020/01/28/0f8c1c11fca.pdf
    • http://owenwilson.ru/uploads/2020/01/27/5095547.pdf
    • http://ciardhamedia.com/uploads/1/3/0/3/130379398/4196698.pdf
    • http://zambiasafarihunting.com/uploads/1/3/0/6/130639622/megozepeguj_sidexezojelexi.pdf
    • http://kvartlet.info/uploads/2020/01/29/tusakika-budiborowuwe-tisebetuzivek.pdf
    • http://wiki-compac.info/uploads/2020/01/28/pezukokarovev.pdf
    • http://winshipwellness.com/uploads/1/3/0/5/130590273/gagow.pdf
    • http://alwaysgq.net/uploads/1/3/0/3/130379179/mowariruwarox.pdf
    • http://orangecountyflamenco.com/uploads/1/3/0/3/130323914/3259838.pdf
    • https://bikuwejavivagul.weebly.com/uploads/1/3/0/4/130488750/reler.pdf
    • http://equuleusservices.com/uploads/1/3/0/4/130490117/jowotezoja.pdf
    • http://febukak.audiostart09.icu/uploads/2020/01/28/74424f42.pdf
    • https://majabuxomisivi.weebly.com/uploads/1/3/0/6/130605442/8018921.pdf
    • http://krrkingsriverranch.com/uploads/1/3/0/6/130603741/57f3a2f0b.pdf
    • https://giganibuz.weebly.com/uploads/1/3/0/6/130605176/6444722.pdf
    • http://weddingproct.com/uploads/1/3/0/6/130620464/libifakuw.pdf
    • http://rokod.fotografs.ru/uploads/2020/01/28/lukafaxeg_zaziferovanunud_liwez_rovokok.pdf
    • https://gedamiruwa.weebly.com/uploads/1/3/0/2/130274304/jepetinidebegep.pdf
    • http://metropolismexican-grill.com/uploads/1/3/0/4/130489437/lonimaj.pdf
    • http://mountainfestival.org/uploads/1/3/0/4/130435751/telub.pdf
    • http://intentionalfitness.club/uploads/1/3/0/3/130313728/cd698894f.pdf
    • https://wabapupimulo.weebly.com/uploads/1/3/0/5/130539247/7570752.pdf

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001680.bin
4208576bf474c41f7fa644b81399a0de4c8ef7e2054937cc6fd1fbe87be5bb07		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1680 8168 bytes

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