Xls.Dropper.Agent-7057010-0 — Office (OLE) / .DOC malware analysis

Static analysis result for SHA-256 1437870e33da0ca4…

MALICIOUS

Office (OLE) / .DOC

448.0 KB
MD5: d1a1e8c4fe93c63de0f0e5326f63b0ab SHA-1: c149ab6a58306b2ccd689ffc6f6771c37e1c1c6a SHA-256: 1437870e33da0ca4f8ced4cfed823716d0498012718e2abb30f3a349a5f10bef
220 Risk Score

Malware Insights

Xls.Dropper.Agent-7057010-0 · confidence 90%

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is detected as Xls.Dropper.Agent-7057010-0 by ClamAV, indicating its malicious nature. Heuristics reveal references to LoadLibrary and GetProcAddress APIs, commonly used by droppers to load malicious code. The OLE structure shows significant slack space and an embedded EMF object, further supporting its role as a dropper. The document body contains references to embedded Excel and PowerPoint objects, consistent with a malicious document designed to execute embedded content.

Heuristics 5

  • Office EPRINT stream contains EMF object high CVE related OLE_EPRINT_EMF_OBJECT
    OLE ObjectPool contains an EPRINT stream with EMF data. This is rare in normal documents and is CVE-2007-3893/MS07-046-family evidence when paired with Office exploit payload anomalies, but the malformed EMF record is not proven by this rule alone.
  • ClamAV: Xls.Dropper.Agent-7057010-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Xls.Dropper.Agent-7057010-0
  • Reference to LoadLibrary API high SC_STR_LOADLIBRARY
    Reference to LoadLibrary API
  • Reference to GetProcAddress API high SC_STR_GETPROCADDRESS
    Reference to GetProcAddress API
  • OLE document has large unaccounted-for region high OLE_SLACK_ANOMALY
    OLE file is 458,752 bytes but its declared streams total only 31,351 bytes — 427,401 bytes (93%) live in unallocated sector slack. This is the canonical hiding place for pre-macro-era Office exploit payloads (XOR-encoded shellcode reached via a parser pointer-corruption bug in the document structure).