MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a1ea10b25a1dd9165910a6859847f4bc6437f06e4651f8cc31ddf3b9d50be3c2. 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 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a1ea10b25a1dd9165910a6859847f4bc6437f06e4651f8cc31ddf3b9d50be3c2
SHA3-384 hash: 6ed86917215e764a6af54533e5915cd71b6119081c551c0141dd71724ae18374e325046567666671206518c80242a961
SHA1 hash: fe63d6a4046682dabce9cc6e49bc22fbbb8399e4
MD5 hash: 8b9a76bee8f32292b25d55383c100d2c
humanhash: idaho-yellow-video-happy
File name:08142020_1955816493.doc
Download: download sample
Signature Quakbot
Create hunting rule
File size:390'551 bytes
First seen:2020-08-14 18:00:11 UTC
Last seen:Never
File type:Word file doc
MIME type:application/vnd.openxmlformats-officedocument.wordprocessingml.document
ssdeep 6144:qfm2kjkjxuWiyKMUsTn8XBlKqqUY1BaE8D7h6JDAm30QWIOtfXuu4MCUlmoykTHt:qfm2hVuW7VgmUYSDevEbIOE7gFywyq+K
TLSH 7084234FEC80BDD2F4EF42BC87645460FA1CE596863B66D7388950D7A2F2982DE1B40D
Reporter abuse_ch
Tags:doc Qakbot qbot Quakbot spx155


Avatar
abuse_ch
Malspam distributing Quakbot:

HELO: mout-xforward.perfora.net
Sending IP: 82.165.159.133
Subject: Re: Termination of E-mail victim-email Processed Verify Now.
Attachment: 08142020_1955816493.zip (contains "08142020_1955816493.doc")

Quakbot payload URLs:
http://bronco.is/pdniovzkgwwt/111111.png
http://craniotylla.ch/vzufnt/111111.png
http://forum.insteon.com/suowb/111111.png
http://marineworks.eu/dwaunrsamlbq/111111.png
http://nanfeiqiaowang.com/tsxwe/111111.png
http://quickinsolutions.com/wfqggeott/111111.png
http://quoraforum.com/btmlxjxmyxb/111111.png
http://rijschoolfastandserious.nl/rprmloaw/111111.png
http://studiomascellaro.it/wnzzsbzbd/111111.png
http://webtest.pp.ua/yksrpucvx/111111.png

Intelligence

File Origin
# of uploads :
1
# of downloads :
390
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Trojan.GenericKDZ.69442.14746.13534.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file
Creating a process with a hidden window
Delayed writing of the file
Running batch commands
Using the Windows Management Instrumentation requests
Searching for the window
DNS request
Sending an HTTP GET request
Reading critical registry keys
Launching a process
Deleting a recently created file
Possible injection to a system process
Launching a tool to kill processes
Launching a process by exploiting the app vulnerability
Creating a process from a recently created file
Launching a file downloaded from the Internet
Result
Threat name:
Unknown
Detection:
malicious
Classification:
expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/430588
Signature
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 macro with GUI obfuscation
Document contains an embedded VBA macro which may execute processes
Document contains an embedded VBA macro with suspicious strings
Document exploit detected (creates forbidden files)
Document exploit detected (process start blacklist hit)
Downloads files with wrong headers with respect to MIME Content-Type
Machine Learning detection for dropped file
Machine Learning detection for sample
Microsoft Office drops suspicious files
PowerShell case anomaly found
Powershell drops PE file
Sigma detected: Powershell download payload from hardcoded c2 list
Suspicious powershell command line found
Tries to download and execute files (via powershell)
Wscript starts Powershell (via cmd or directly)
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 267681 Sample: 08142020_1955816493.doc Startdate: 16/08/2020 Architecture: WINDOWS Score: 100 53 Sigma detected: Powershell download payload from hardcoded c2 list 2->53 55 Suspicious powershell command line found 2->55 57 Downloads files with wrong headers with respect to MIME Content-Type 2->57 59 6 other signatures 2->59 10 explorer.exe 5 2->10         started        12 WINWORD.EXE 207 47 2->12         started        process3 file4 16 wscript.exe 3 10->16         started        45 C:\ProgramData\UIYUIYUIYuiyuiYUIYYuyty.vbs, ASCII 12->45 dropped 47 C:\ProgramData\JHJKGHuggUGUGYYuyggg.vbs, Non-ISO 12->47 dropped 79 Document exploit detected (creates forbidden files) 12->79 81 Document exploit detected (process start blacklist hit) 12->81 83 Microsoft Office drops suspicious files 12->83 20 explorer.exe 12->20         started        signatures5 process6 file7 41 C:\...\djsfgytdftftyYFGfghffghYYTTT.cmd, ASCII 16->41 dropped 51 Wscript starts Powershell (via cmd or directly) 16->51 22 cmd.exe 1 16->22         started        signatures8 process9 signatures10 69 Suspicious powershell command line found 22->69 71 Wscript starts Powershell (via cmd or directly) 22->71 73 Tries to download and execute files (via powershell) 22->73 75 PowerShell case anomaly found 22->75 25 powershell.exe 14 21 22->25         started        30 taskkill.exe 1 22->30         started        32 conhost.exe 22->32         started        34 timeout.exe 1 22->34         started        process11 dnsIp12 49 rijschoolfastandserious.nl 185.104.29.52, 49724, 80 AS-ZXCSNL Netherlands 25->49 43 C:\BlotRots\Loterios.exe, PE32 25->43 dropped 77 Powershell drops PE file 25->77 36 Loterios.exe 25->36         started        file13 signatures14 process15 signatures16 61 Detected unpacking (changes PE section rights) 36->61 63 Detected unpacking (overwrites its own PE header) 36->63 65 Machine Learning detection for dropped file 36->65 67 2 other signatures 36->67 39 Loterios.exe 36->39         started        process17
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a1ea10b25a1dd9165910a6859847f4bc6437f06e4651f8cc31ddf3b9d50be3c2/
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=uhvbbms2dxmrmwiqu2czqr7uxrsdp4doizi7rtbr3xz3tvil4pba._file
Result
Malware family:
qakbot
Create hunting rule
Score:
  10/10
Tags:
trojan banker stealer family:qakbot
Link:
https://tria.ge/reports/200814-ewgrgzylwa/
Behaviour
Creates scheduled task(s)
Delays execution with timeout.exe
Kills process with taskkill
Modifies registry class
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Office loads VBA resources, possible macro or embedded object present
Drops file in System32 directory
Loads dropped DLL
Blacklisted process makes network request
Executes dropped EXE
Process spawned unexpected child process
Qakbot/Qbot
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/a1ea10b25a1dd9165910a6859847f4bc6437f06e4651f8cc31ddf3b9d50be3c2

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_doc_20200812_2
Create hunting rule
Author:abuse.ch
Description:Detects Quakbot DOC

File information

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

Malspam

Quakbot

zip a0ab609747b185b820ed3a65ba00934adebd2d12689d4a49c21094ac870ff0f4

Quakbot

Word file doc a1ea10b25a1dd9165910a6859847f4bc6437f06e4651f8cc31ddf3b9d50be3c2

(this sample)

Quakbot

Executable exe a1a609c00c3504343f05c5fe6d6353ec177b06551efaf44c4d69e316718dc03e

  
Dropped by
MD5 ecbdef6c8ff15f14f034a8c4193d9dce
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 a0ab609747b185b820ed3a65ba00934adebd2d12689d4a49c21094ac870ff0f4
  
Dropping
SHA256 a1a609c00c3504343f05c5fe6d6353ec177b06551efaf44c4d69e316718dc03e
  
Dropping
MD5 c35644ec3d9bcaafb7cf05896a6f5d49

Comments