MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c0b83b92765df26c382fed68564097c14fbaf4d4b05647fb2c80a9ca39107ef1. 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: 4


Intelligence 4 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c0b83b92765df26c382fed68564097c14fbaf4d4b05647fb2c80a9ca39107ef1
SHA3-384 hash: d8c47f2739a720de03d54bbab6d039849446e0425df5cfffe8b6ca7328624c8def5e00503b4fd441fd8018df37e43db1
SHA1 hash: f29675396c705da72fef9eb452f1777ca07a36dc
MD5 hash: 045899b89ef185eea3baa0a2fdf6a1a2
humanhash: indigo-spring-mobile-jersey
File name:CompensationClaim-249761403-11242020.xls
Download: download sample
Signature Quakbot
Create hunting rule
File size:62'976 bytes
First seen:2020-11-25 17:01:56 UTC
Last seen:Never
File type:Excel file xls
MIME type:application/vnd.ms-excel
ssdeep 1536:8cPiTQAVW/89BQnmlcGvgZ6GrvhpJ8YUOMhPt/BI/s/Vk/OZ/R/7/Gm/UQ/OhGWE:8cPiTQAVW/89BQnmlcGvgZ6Gr3J8YUOU
TLSH AE53A452BE12C029F35D8B764467429C2FE1FC126B9159CF336AB7696FB02843E93817
Reporter ffforward
Tags:Qakbot qbot Quakbot xls

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
353104 bytesBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
85
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
MALICIOUS
Details
Document With Minimal Content
Document contains less than 1 kilobyte of semantic information.
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c0b83b92765df26c382fed68564097c14fbaf4d4b05647fb2c80a9ca39107ef1/
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=yc4dxetwlxzgyobp5vufmqexyfh3v5guwblep6zmqcu4uoiqp3yq._file
Result
Malware family:
n/a
Score:
  10/10
Tags:
cryptone macro packer
Link:
https://tria.ge/reports/201125-r967d96cp6/
Behaviour
Creates scheduled task(s)
Enumerates system info in registry
Modifies Internet Explorer settings
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Checks SCSI registry key(s)
Checks processor information in registry
Suspicious use of AdjustPrivilegeToken
Program crash
Loads dropped DLL
CryptOne packer
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:
1.00
Link:
https://yomi.yoroi.company/submissions/c0b83b92765df26c382fed68564097c14fbaf4d4b05647fb2c80a9ca39107ef1

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:SUSP_EnableContent_String_Gen
Create hunting rule
Author:Florian Roth
Description:Detects suspicious string that asks to enable active content in Office Doc
Reference:Internal Research
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

Quakbot

Excel file xls c0b83b92765df26c382fed68564097c14fbaf4d4b05647fb2c80a9ca39107ef1

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments