MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7acf54afb2da619579c75936b67be5d13997bce00fca3959696e3956bcf628fb. 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: 6


Intelligence 6 IOCs YARA 9 File information Comments
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SHA256 hash: 7acf54afb2da619579c75936b67be5d13997bce00fca3959696e3956bcf628fb
SHA3-384 hash: 13835764d8feb397ff64b552d94a67a8af73a5d93f8fb41713025f902a9b27f3185cea37ec6ee98ea6a82b2445815bef
SHA1 hash: e523f3d2d848f34cc5a1a933afa62d2a9d3d00cd
MD5 hash: a3052d2d76c992fed8396aefbe47b6b5
humanhash: spring-cola-grey-washington
File name:document-937750563.xls
Download: download sample
Signature Quakbot
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File size:436'224 bytes
First seen:2020-10-19 22:02:59 UTC
Last seen:2020-10-24 19:00:18 UTC
File type:Excel file xls
MIME type:application/vnd.ms-excel
ssdeep 12288:U2+J+l5QvSoOUkQGPRoswLLjfsHJNF05F:PJl5QrrkQOCHspN4
TLSH 4694F296F359DE8BDA819A348ED352C61323FC504B66430B319DF31BBA7E1544E8B2C9
Reporter lazyactivist192
Tags:Qakbot qbot Quakbot tr01 xls

Intelligence

File Origin
# of uploads :
5
# of downloads :
80
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Exploit.Siggen2.51311.17227.8473.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
DNS request
Sending a custom TCP request by exploiting the app vulnerability
Result
Threat name:
Qbot
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Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/496183
Signature
Antivirus detection for dropped file
Contains functionality to compare user and computer (likely to detect sandboxes)
Contains functionality to detect virtual machines (IN, VMware)
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Document contains an embedded VBA macro with suspicious strings
Document exploit detected (creates forbidden files)
Document exploit detected (drops PE files)
Document exploit detected (process start blacklist hit)
Document exploit detected (UrlDownloadToFile)
Found malware configuration
Injects code into the Windows Explorer (explorer.exe)
Machine Learning detection for dropped file
Maps a DLL or memory area into another process
Multi AV Scanner detection for submitted file
Office process drops PE file
Overwrites code with unconditional jumps - possibly settings hooks in foreign process
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected Qbot
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 300582 Sample: document-937750563.xls Startdate: 20/10/2020 Architecture: WINDOWS Score: 100 53 Found malware configuration 2->53 55 Antivirus detection for dropped file 2->55 57 Multi AV Scanner detection for submitted file 2->57 59 7 other signatures 2->59 8 EXCEL.EXE 14 27 2->8         started        13 taskeng.exe 1 2->13         started        process3 dnsIp4 41 www.notamuzikaletleri.com 8->41 43 notamuzikaletleri.com 176.53.8.231, 443, 49165 RADORETR Turkey 8->43 35 C:\WErtu\Reterd\szvmhegu.exe, PE32 8->35 dropped 37 C:\Users\user\AppData\Local\...\19[1].gif, PE32 8->37 dropped 69 Document exploit detected (creates forbidden files) 8->69 71 Document exploit detected (process start blacklist hit) 8->71 73 Document exploit detected (UrlDownloadToFile) 8->73 15 szvmhegu.exe 3 8->15         started        19 szvmhegu.exe 13->19         started        21 szvmhegu.exe 13->21         started        file5 signatures6 process7 file8 39 C:\Users\user\AppData\Roaming\...\ebouu.exe, PE32 15->39 dropped 45 Antivirus detection for dropped file 15->45 47 Detected unpacking (changes PE section rights) 15->47 49 Detected unpacking (overwrites its own PE header) 15->49 51 3 other signatures 15->51 23 ebouu.exe 15->23         started        26 szvmhegu.exe 15->26         started        28 schtasks.exe 15->28         started        signatures9 process10 signatures11 61 Antivirus detection for dropped file 23->61 63 Detected unpacking (changes PE section rights) 23->63 65 Detected unpacking (overwrites its own PE header) 23->65 67 6 other signatures 23->67 30 explorer.exe 1 23->30         started        33 ebouu.exe 23->33         started        process12 signatures13 75 Contains functionality to compare user and computer (likely to detect sandboxes) 30->75
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/7acf54afb2da619579c75936b67be5d13997bce00fca3959696e3956bcf628fb/
Threat name:
Document-Word.Backdoor.Quakbot
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Status:
Malicious
First seen:
2020-10-19 22:04:33 UTC
AV detection:
15 of 29 (51.72%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=plhvjl5s3jqzk6ohle3lm67f2e4zpphab7fdswljny4vnphwfd5q._file
Result
Malware family:
n/a
Score:
  8/10
Tags:
n/a
Link:
https://tria.ge/reports/201019-4k5pcnv13n/
Behaviour
Suspicious behavior: AddClipboardFormatListener
Suspicious use of SetWindowsHookEx
Checks processor information in registry
Enumerates system info in registry
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Office loads VBA resources, possible macro or embedded object present
Process spawned suspicious 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/7acf54afb2da619579c75936b67be5d13997bce00fca3959696e3956bcf628fb

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_Quakbot_xls_20201020
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Author:abuse.ch
Description:Detects Quakbot 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: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:SUSP_Office_Dropper_Strings
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Author:Florian Roth
Description:Detects Office droppers that include a notice to enable active content
Reference:Internal Research
Rule name:UAC_bypass_bin_mem
Create hunting rule
Author:James_inthe_box
Description:UAC bypass in files like avemaria
Rule name:win_qakbot_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:autogenerated rule brought to you by yara-signator

File information

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

Comments