MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e54434e6553ad411c818ae8af855c80875d07367ced8d1ff782d1e26362e4e9d. 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



Quakbot


Vendor detections: 10


Intelligence 10 IOCs YARA 2 File information Comments

SHA256 hash: e54434e6553ad411c818ae8af855c80875d07367ced8d1ff782d1e26362e4e9d
SHA3-384 hash: 7d55d42b0e13b93d51e1a0e527a45bc00fd53d6744a2088668637531bccf0899658f65d97eb086a59b8c3cc103c40584
SHA1 hash: 644bc3f76cd1219a39004012cafc9b5be9c22ff8
MD5 hash: be16bb2d4055e983c88ba6830ffe4227
humanhash: tango-network-michigan-oranges
File name:Rebate_1396232494_05272021.xlsm
Download: download sample
Signature Quakbot
File size:339'491 bytes
First seen:2022-04-15 07:45:21 UTC
Last seen:Never
File type:Excel file xlsm
MIME type:application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
ssdeep 6144:FRMlgE+mJ9ABc/nv5k8IKAhBfsOwmLgzLc1pTcsGEdDIPmhsB0vRakfzeQZNh:FRMmEv2Bc/nvm8IKABfsYOmauFt
TLSH T19374127FE28559F4C3398D3FD680E1908265F1E04167B32D47DD3928A34329FA95E2EA
TrID 60.1% (.XLSX) Excel Microsoft Office Open XML Format document (34000/1/7)
30.9% (.ZIP) Open Packaging Conventions container (17500/1/4)
7.0% (.ZIP) ZIP compressed archive (4000/1)
1.7% (.PG/BIN) PrintFox/Pagefox bitmap (640x800) (1000/1)
Reporter petikvx
Tags:Quakbot xlsm

Intelligence


File Origin
# of uploads :
1
# of downloads :
575
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Rebate_1396232494_05272021.xlsm
Verdict:
Malicious activity
Analysis date:
2022-04-15 07:46:17 UTC
Tags:
maldoc-60

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
File type:
application/vnd.ms-excel.sheet.macroEnabled.12
Has a screenshot:
False
Contains macros:
False
Result
Verdict:
Clean
Maliciousness:

Behaviour
Launching a process
Searching for the window
Creating a window
Result
Verdict:
Malicious
File Type:
OOXML Excel File with Excel4Macro
Payload URLs
URL
File name
91.211.91.97
sharedStrings.xml
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
macros-on-open stripped
Label:
Malicious
Suspicious Score:
9.9/10
Score Malicious:
1%
Score Benign:
%
Result
Verdict:
MALICIOUS
Details
Autostarting Excel Macro Sheet
Excel contains Macrosheet logic that will trigger automatically upon document open.
Document With No Content
Document contains little or no semantic information.
Result
Threat name:
Hidden Macro 4.0
Detection:
malicious
Classification:
expl.evad
Score:
100 / 100
Signature
Antivirus / Scanner detection for submitted sample
Document exploit detected (process start blacklist hit)
Document exploit detected (UrlDownloadToFile)
Found Excel 4.0 Macro with suspicious formulas
Found malicious Excel 4.0 Macro
Multi AV Scanner detection for submitted file
Office document tries to convince victim to disable security protection (e.g. to enable ActiveX or Macros)
Sigma detected: Microsoft Office Product Spawning Windows Shell
Sigma detected: Regsvr32 Command Line Without DLL
Yara detected Obfuscated Macro In XLSM
Behaviour
Behavior Graph:
Threat name:
Document-Excel.Backdoor.Quakbot
Status:
Malicious
First seen:
2021-05-27 18:26:45 UTC
File Type:
Document
Extracted files:
42
AV detection:
18 of 42 (42.86%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  10/10
Tags:
macro xlm
Behaviour
Checks processor information in registry
Enumerates system info in registry
Modifies Internet Explorer settings
Modifies registry class
Suspicious behavior: AddClipboardFormatListener
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Process spawned unexpected child process
Malware Config
Dropper Extraction:
http://91.211.91.97/7143956.dat
http://190.14.37.109/7143956.dat
http://185.117.75.123/7143956.dat
http://91.211.91.97/4407122.dat
http://190.14.37.109/4407122.dat
http://185.117.75.123/4407122.dat
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:Microsoft_XLSX_with_Macrosheet
Rule name:t0_1

File information


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

Comments