PDF malware analysis — malicious · c1f39b7288a6cc4e

MALICIOUS

PDF

1.64 MB

MD5: 02dae5b4aa519a669c321a5685432a4a SHA-1: d165f71c5a5a09d2ca14d00bf4d42151ddd64bcb SHA-256: c1f39b7288a6cc4eb69455dcef1e76d7bf685b9a3f0d36945fc08a875eb9bf3e

130 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1059.001 PowerShell

The critical heuristic 'CVE_2010_0188' indicates exploitation of a known Adobe Reader vulnerability. The presence of a secondary embedded PDF with similar suspicious findings further supports this. The XFA form suggests a complex document structure designed to host the exploit payload.

Heuristics 4

Adobe Reader LibTIFF XFA image exploit — CVE-2010-0188 critical CVE likely CVE_2010_0188

PDF contains XFA image data with an inline crafted TIFF payload and shellcode/delivery markers. This is the data-bound variant of the CVE-2010-0188 Adobe Reader LibTIFF/XFA exploit shape.
Secondary embedded PDF body has suspicious static findings critical POLYGLOT_CHILD_PDF_STATIC_TRIAGE

A valid PDF body was found at a nonzero offset inside another container and its carved contents matched PDF exploit or lure heuristics. This catches polyglots where the top-level magic routes to ZIP/OLE while a PDF reader or downstream parser opens the hidden PDF payload.
XFA form low PDF_XFA

PDF uses XML Forms Architecture — can contain script logic
PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILED

The cross-check parser (pdfminer.six) failed on this file: PDF differential parser failed: PSSyntaxError. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_000_off0000004f.bin` `4039e9c998334ff031d82f5ca110045c516b3c5ea8785535b9ad33d41166a47b`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4F	13560 bytes
`polyglot_child_pdf_off001a0641.pdf` `c102d44267abc2eb3a0470e7f7826cc96337accbed8026665157470b23634d44`	polyglot-child-pdf	Secondary PDF body inside pdf container at offset 0x1A0641	12066 bytes

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