🤲🏼 NEW | abuse.ch Community Hub! Earn recognition 🏅 for the malware intelligence you share, climb the leaderboards 📈, and connect with like-minded contributors who share your hunting focus 🤝. Ready to unlock your profile? Go to the Community Hub →

MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f4f38f45a2c37edfdb58b69daf268bc6c6a25fb7986be079d480d7cb595ef90a. 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: 6


Intelligence 6 IOCs YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f4f38f45a2c37edfdb58b69daf268bc6c6a25fb7986be079d480d7cb595ef90a
SHA3-384 hash: 9318b72694442329a395ff015985bcf65763f3078f7565af0e737c55824753684bef379adb16bf3538635da7ae5965bb
SHA1 hash: 33fb9b0295810028942c578ff3ad1992c16cc3ed
MD5 hash: 5c450921d9df7291fd0bab803f1fb062
humanhash: august-juliet-undress-romeo
File name:f4f38f45a2c37edfdb58b69daf268bc6c6a25fb7986be079d480d7cb595ef90a.xls
Download: download sample
Signature ZLoader
Create hunting rule
File size:54'272 bytes
First seen:2020-11-23 12:17:16 UTC
Last seen:2020-11-23 14:11:26 UTC
File type:Excel file xls
MIME type:application/vnd.ms-excel
ssdeep 1536:cok3hbdlylKsgqopeJBWhZFGkE+cL2NdAk8NLPUTvn:cok3hbdlylKsgqopeJBWhZFGkE+cL2NH
TLSH 1A33D5B7B6C4E984CA4C0778041743D42367EC9813AA97C7B74AB33A3F767A0491A6C7
Reporter stevengoossens
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
OLE dump

MalwareBazaar was able to identify 3 sections in this file using oledump:

Section IDSection sizeSection name
14096 bytesDocumentSummaryInformation
24096 bytesSummaryInformation
344320 bytesWorkbook

Intelligence

File Origin
# of uploads :
2
# of downloads :
195
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file
Deleting a recently created file
Creating a process with a hidden window
Searching for the window
Launching a process by exploiting the app vulnerability
Result
Threat name:
Unknown
Detection:
malicious
Classification:
expl.evad
Score:
56 / 100
Link:
https://www.joesandbox.com/analysis/545061
Signature
Document exploit detected (process start blacklist hit)
Injects code into the Windows Explorer (explorer.exe)
Multi AV Scanner detection for submitted file
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 321634 Sample: vRGx8WcPIq.xls Startdate: 23/11/2020 Architecture: WINDOWS Score: 56 15 Multi AV Scanner detection for submitted file 2->15 6 EXCEL.EXE 59 25 2->6         started        9 explorer.exe 2->9         started        process3 signatures4 17 Injects code into the Windows Explorer (explorer.exe) 6->17 19 Document exploit detected (process start blacklist hit) 6->19 11 explorer.exe 6->11         started        13 cmd.exe 9->13         started        process5
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f4f38f45a2c37edfdb58b69daf268bc6c6a25fb7986be079d480d7cb595ef90a/
Threat name:
Document-Excel.Trojan.ZLoader
Create hunting rule
Status:
Malicious
First seen:
2020-11-23 12:18:07 UTC
File Type:
Document
Extracted files:
8
AV detection:
17 of 29 (58.62%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=6tzy6rncyn7n7w2yw2o26july3dkex5xtbv6a6ouqdl4wwk67efa._file
Result
Malware family:
n/a
Score:
  10/10
Tags:
macro
Link:
https://tria.ge/reports/201123-gx2r1p8tw6/
Behaviour
Enumerates system info in registry
Modifies Internet Explorer settings
Modifies registry key
Suspicious behavior: AddClipboardFormatListener
Suspicious use of FindShellTrayWindow
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Checks processor information 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:
ZLoader
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/f4f38f45a2c37edfdb58b69daf268bc6c6a25fb7986be079d480d7cb595ef90a

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:ach_ZLoader_xls_20201029
Create hunting rule
Author:abuse.ch
Description:Detects ZLoader XLS
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:Ping_Del_method_bin_mem
Create hunting rule
Author:James_inthe_box
Description:cmd ping IP nul del
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