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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 aa66df26a5be427d325376dcc46b22d71706dbe30633c8d995aef74b850b1b01. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry


ZLoader


Vendor detections: 5


Intelligence 5 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: aa66df26a5be427d325376dcc46b22d71706dbe30633c8d995aef74b850b1b01
SHA3-384 hash: f0b241f22c18e8d3b13291c243a3f042d19dc4c915641a46862c49dc7d379325406f7a6ce5dfdd41f514738d9cc2bb21
SHA1 hash: 1ba515b9f8091a531275dc204d317305de8ef048
MD5 hash: e02432d88963d705dc72d0a8c25a0f33
humanhash: bakerloo-monkey-august-beer
File name:Req6555.xls
Download: download sample
Signature ZLoader
Create hunting rule
File size:41'984 bytes
First seen:2020-10-09 19:28:02 UTC
Last seen:Never
File type:Excel file xls
MIME type:application/vnd.ms-excel
ssdeep 768:CmQk3hOdsylKlgxopeiBNhZFGzE+cL2kdAJ/Qk4fETZHJQKc8:0k3hOdsylKlgxopeiBNhZFGzE+cL2kd+
TLSH A91394F3EB95DC65CE88833949A741D06302EC511B6BA3877685F7363FB67B04D06682
Reporter theDark3d
Tags:hiddenmacro Loader xls ZLoader

Intelligence

File Origin
# of uploads :
1
# of downloads :
163
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a process with a hidden window
Searching for the window
Launching cmd.exe command interpreter
Launching a process by exploiting the app vulnerability
Result
Threat name:
Hidden Macro 4.0
Create hunting rule
Detection:
malicious
Classification:
expl.evad
Score:
64 / 100
Link:
https://www.joesandbox.com/analysis/487173
Signature
Document exploit detected (process start blacklist hit)
Found abnormal large hidden Excel 4.0 Macro sheet
Found Excel 4.0 Macro with suspicious formulas
Injects code into the Windows Explorer (explorer.exe)
Office document tries to convince victim to disable security protection (e.g. to enable ActiveX or Macros)
Behaviour
Behavior Graph:
Download SVG
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/aa66df26a5be427d325376dcc46b22d71706dbe30633c8d995aef74b850b1b01/
Threat name:
Document-Word.Trojan.Heuristic
Create hunting rule
Status:
Malicious
First seen:
2020-10-09 19:29:10 UTC
AV detection:
24 of 48 (50.00%)
Threat level:
  2/5
Result
Malware family:
n/a
Score:
  10/10
Tags:
n/a
Link:
https://tria.ge/reports/201009-gttvde85fe/
Behaviour
Modifies registry key
Suspicious behavior: AddClipboardFormatListener
Suspicious use of FindShellTrayWindow
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Checks processor information in registry
Enumerates system info in registry
Process spawned unexpected child process
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.91
Link:
https://yomi.yoroi.company/submissions/aa66df26a5be427d325376dcc46b22d71706dbe30633c8d995aef74b850b1b01

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:Email_stealer_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Email in files like avemaria
Rule name:IPPort_combo_mem
Create hunting rule
Author:James_inthe_box
Description:IP and port combo
Rule name:Select_from_enumeration
Create hunting rule
Author:James_inthe_box
Description:IP and port combo
Rule name:SharedStrings
Create hunting rule
Author:Katie Kleemola
Description:Internal names found in LURK0/CCTV0 samples
Rule name:UAC_bypass_bin_mem
Create hunting rule
Author:James_inthe_box
Description:UAC bypass in files like avemaria

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Comments