🤲🏼 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 aa1fdbbf8344407f54cd0a6f9ca3cab2112d6fbb9278333373c577308df4333e. 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: aa1fdbbf8344407f54cd0a6f9ca3cab2112d6fbb9278333373c577308df4333e
SHA3-384 hash: 919d03c8d37c5edc8cc850b312a07d02843a3d8a9226d0aaabe0eddb3c12fae4c31f9c3ce6ef1532f3a319502dcc2147
SHA1 hash: 2de68ee9d584e753846f52bee2074f79afa6f2c4
MD5 hash: f78b515e7dd12de0a5aec2c5898120cf
humanhash: cold-robin-alanine-maryland
File name:myResume.xlsb
Download: download sample
Signature ZLoader
Create hunting rule
File size:196'744 bytes
First seen:2020-10-26 23:16:30 UTC
Last seen:2020-10-27 00:54:57 UTC
File type:Excel file xlsx
MIME type:application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
ssdeep 3072:bUGkrXSMW3CtphHKv6+93f87BoZ1HKaj7CtQAbsf4ABd4zG3LyC:bU3SMts6k6oZYajGbsf48wsLD
TLSH DE14010FDD0C8C47C53DA1B82E114EE93A49515A9C037ADF1660AE8879A92D72FCF1B9
Reporter malware_traffic
Tags:macro SILENTNIGHT xls ZLoader

Intelligence

File Origin
# of uploads :
2
# of downloads :
178
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
TwinWave.EvilDoc.XLSB4IntoTheMystic.20200705.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a process with a hidden window
Sending an HTTP GET request to an infection source by exploiting the app vulnerability
Launching a process by exploiting the app vulnerability
Result
Threat name:
Hidden Macro 4.0
Create hunting rule
Detection:
malicious
Classification:
expl.evad
Score:
76 / 100
Link:
https://www.joesandbox.com/analysis/512859
Signature
Document exploit detected (process start blacklist hit)
Document exploit detected (UrlDownloadToFile)
Found abnormal large hidden Excel 4.0 Macro sheet
Found Excel 4.0 Macro with suspicious formulas
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Sigma detected: Microsoft Office Product Spawning Windows Shell
Behaviour
Behavior Graph:
Download SVG
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/aa1fdbbf8344407f54cd0a6f9ca3cab2112d6fbb9278333373c577308df4333e/
Threat name:
Document-Office.Downloader.EncDoc
Create hunting rule
Status:
Malicious
First seen:
2020-10-26 19:32:21 UTC
AV detection:
9 of 48 (18.75%)
Threat level:
  3/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=vip5xp4dirah6vgnbjxzzi6kwiis2353sj4dgm3tyv3tbdpugm7a._file
Result
Malware family:
n/a
Score:
  10/10
Tags:
n/a
Link:
https://tria.ge/reports/201026-722s6kglee/
Behaviour
Enumerates system info in registry
Modifies Internet Explorer settings
Suspicious behavior: AddClipboardFormatListener
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.

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