MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7950d1f2a009e1829085e1f176ad8c915a11173d3a00da850e754d9da3a73e8d. 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: 7


Intelligence 7 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 7950d1f2a009e1829085e1f176ad8c915a11173d3a00da850e754d9da3a73e8d
SHA3-384 hash: bfe2837cc7eb1c326d195b6642581ea82e73f12cd303998eb0c36e1a98efdc9b76d0063db76943110d80947188a9ac48
SHA1 hash: 0faf1247baaefaa2e0cbb684d3d7b50a3d864fcb
MD5 hash: a36d2cf9ae1dd020733e0c50716ba98a
humanhash: saturn-seventeen-alpha-burger
File name:case4232.xls
Download: download sample
Signature ZLoader
Create hunting rule
File size:36'864 bytes
First seen:2020-11-25 18:29:10 UTC
Last seen:Never
File type:Excel file xls
MIME type:application/vnd.ms-excel
ssdeep 768:RPqNk3hbdlylKsgqopeJBWhZFGkE+cL2NdAJo1BnsGpVl855UrVkraQUV:Zok3hbdlylKsgqopeJBWhZFGkE+cL2Nf
TLSH 8BF294F3B7C5ED55CE08837948AB42906722EC555BAB838B3395F3293FB6BE05902147
Reporter Anonymous
Tags:ZLoader

Office OLE Information

This malware samples appears to be an Office document. The following table provides more information about this document using oletools and oledump.

OLE id
Application name is Microsoft Excel
Office document is in OLE format

Intelligence

File Origin
# of uploads :
1
# of downloads :
87
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file
Creating a process with a hidden window
DNS request
Sending a custom TCP request
Deleting a recently created file
Possible injection to a system process
Launching a process by exploiting the app vulnerability
Creating a process from a recently created file
Result
Verdict:
MALICIOUS
Details
Excel 4.0 Macro
Document contains Excel 4.0 macros (XLM). A valid, albeit dated feature, this document should be treated with suspicion.
Autostarting Excel Macro Sheet
Excel contains Macrosheet logic that will trigger automatically upon document open.
Result
Threat name:
Unknown
Detection:
malicious
Classification:
expl.evad
Score:
84 / 100
Link:
https://www.joesandbox.com/analysis/547351
Signature
Document exploit detected (creates forbidden files)
Document exploit detected (process start blacklist hit)
Injects code into the Windows Explorer (explorer.exe)
Microsoft Office drops suspicious files
Multi AV Scanner detection for submitted file
Potential malicious VBS script found (has network functionality)
Potential malicious VBS script found (suspicious strings)
System process connects to network (likely due to code injection or exploit)
Behaviour
Behavior Graph:
Download SVG
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/7950d1f2a009e1829085e1f176ad8c915a11173d3a00da850e754d9da3a73e8d/
Threat name:
Document-Excel.Trojan.ZLoader
Create hunting rule
Status:
Malicious
First seen:
2020-11-25 18:33:09 UTC
AV detection:
15 of 29 (51.72%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=pfind4vabhqyfeef4hyxnlmmsfnbcfz5hianvbioovgz3i5hh2gq._file
Result
Malware family:
n/a
Score:
  8/10
Tags:
macro
Link:
https://tria.ge/reports/201125-twcpyjm92x/
Behaviour
Enumerates system info in registry
Modifies Internet Explorer settings
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of SetWindowsHookEx
Checks processor information in registry
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
ZLoader
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/7950d1f2a009e1829085e1f176ad8c915a11173d3a00da850e754d9da3a73e8d

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.

Malspam

ZLoader

Excel file xls 7950d1f2a009e1829085e1f176ad8c915a11173d3a00da850e754d9da3a73e8d

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments