Malicious PDF — malware analysis report

Static analysis result for SHA-256 e5a9c10667ae5295…

MALICIOUS

PDF

42.1 KB Created: 2020-08-24 17:50:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7d3ef3f7e2fc18dfff3b7c9536f2c97b SHA-1: 38bd611f0967307055932a4b49065bffc344182c SHA-256: e5a9c10667ae5295efcf87b445a9ffed6e6dee5f35c01ebca803a67566b8b20f
160 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one critical heuristic identifying it as a malicious redirector pointing to 'ttraff.com'. Another heuristic indicates a link farm structure, with numerous links to Shopify-hosted PDFs. The document also contains a lure consistent with credential phishing, specifically mentioning MFA or one-time code harvesting. The presence of these elements suggests the primary goal is to trick the user into clicking the malicious link, leading to potential credential theft or malware delivery.

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.
  • MFA / one-time-code harvesting lure high SE_MFA_LURE
    Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
  • 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.com/pify?keyword=broadcast+android+on+twitch
    • http://files.lindseymaeeventsanddesigns.com/uploads/1/3/0/7/130738722/3753922.pdf
    • http://files.travelwhisperer.org/uploads/1/3/0/7/130774994/mikekunebig.pdf
    • http://files.ashmancini.com/uploads/1/3/0/8/130874381/52f36bb.pdf
    • http://lewapu.greatermidwestpb.org/uploads/1/3/1/8/131856772/747e41.pdf
    • http://files.stacyboatman.com/uploads/1/3/2/6/132695336/vapirewumeg_muwosilepowolak_nitavemovefukax.pdf
    • https://cdn.shopify.com/s/files/1/0429/7375/7603/files/11649765793.pdf
    • https://cdn.shopify.com/s/files/1/0439/8986/0510/files/70831588501.pdf
    • https://cdn.shopify.com/s/files/1/0431/1518/4277/files/rerulaxivuxitezetabun.pdf
    • https://cdn.shopify.com/s/files/1/0432/6536/0034/files/bash_echo_color.pdf
    • https://cdn.shopify.com/s/files/1/0437/4790/1592/files/70635358094.pdf
    • https://cdn.shopify.com/s/files/1/0461/4176/7833/files/sherlock_holmes_series_season_5.pdf
    • https://cdn.shopify.com/s/files/1/0432/1837/0728/files/84570583739.pdf
    • https://cdn.shopify.com/s/files/1/0435/7259/2801/files/zopofili.pdf
    • https://cdn.shopify.com/s/files/1/0430/5456/3477/files/77211447560.pdf
    • https://cdn.shopify.com/s/files/1/0429/6821/9799/files/pakokefudibe.pdf
    • https://cdn.shopify.com/s/files/1/0431/1266/1152/files/jexarigemudaz.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006705.bin
f9838495b820f61831d385f84ef18e9fdcd6c3c129f77b08f1cb62c5c016b378
pdf-font-stream PDF embedded font (sfnt) at offset 0x6705 5136 bytes
font_01_sfnt_off0000787e.bin
4466e76729dfd0290a79bd4ca772f9002a41d53ee4a45f90f52edd2c1030247a
pdf-font-stream PDF embedded font (sfnt) at offset 0x787E 10128 bytes