MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 06d5e005a6b82b8b04af686c2d24f14d36a7a842eb0b38940bcf3453d1222ad4. 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


BitRAT


Vendor detections: 9


Maldoc score: 8


Intelligence 9 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 06d5e005a6b82b8b04af686c2d24f14d36a7a842eb0b38940bcf3453d1222ad4
SHA3-384 hash: 8a29a87abfe00e2917968bf1eced3e6f0d867867ae76898da4534dbf2d16962f42ff9b9b9e75721684427a05e04e2b0a
SHA1 hash: 217aa8b5834222877196d2eef83f93983c2a37c8
MD5 hash: ac38560bb7741fd750ffaa83c397f8cc
humanhash: mexico-bravo-earth-pennsylvania
File name:SecuriteInfo.com.Exploit.Siggen3.19777.16732.15393
Download: download sample
Signature BitRAT
Create hunting rule
File size:36'352 bytes
First seen:2021-08-14 17:43:38 UTC
Last seen:Never
File type:Excel file xlsx
MIME type:application/vnd.ms-excel
ssdeep 768:o6k3hOdsylKlgxopeiBNhZFGzE+cL2kdAJ3IEs+SK7vJ9ULWq:zk3hOdsylKlgxopeiBNhZFGzE+cL2kda
TLSH T153F22172F281D815C94B83758DD2DADA2212FC929E93864B339CFB0E1F71FC99902756
Reporter SecuriteInfoCom
Tags:BitRAT xlsx

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
Maldoc score: 8
Application name is Microsoft Excel
Office document is in OLE format
Office document contains VBA Macros
OLE dump

MalwareBazaar was able to identify 15 sections in this file using oledump:

Section IDSection sizeSection name
1108 bytesCompObj
2244 bytesDocumentSummaryInformation
3220 bytesSummaryInformation
420185 bytesWorkbook
5526 bytes_VBA_PROJECT_CUR/PROJECT
680 bytes_VBA_PROJECT_CUR/PROJECTwm
71554 bytes_VBA_PROJECT_CUR/VBA/Sheet1
81261 bytes_VBA_PROJECT_CUR/VBA/ThisWorkbook
93412 bytes_VBA_PROJECT_CUR/VBA/_VBA_PROJECT
10834 bytes_VBA_PROJECT_CUR/VBA/dir
111784 bytes_VBA_PROJECT_CUR/VBA/ozxNE
1297 bytes_VBA_PROJECT_CUR/ozxNE/CompObj
13262 bytes_VBA_PROJECT_CUR/ozxNE/VBFrame
1438 bytes_VBA_PROJECT_CUR/ozxNE/f
150 bytes_VBA_PROJECT_CUR/ozxNE/o
OLE vba

MalwareBazaar was able to extract and deobfuscate VBA script(s) the following information from OLE objects embedded in this file using olevba:

TypeKeywordDescription
AutoExecWorkbook_ActivateRuns when the Excel Workbook is opened
AutoExecWorksheet_ChangeRuns when the file is opened and ActiveX objects trigger events
SuspiciousShellExecuteMay run an executable file or a system command
SuspiciousGetObjectMay get an OLE object with a running instance
SuspiciousHex StringsHex-encoded strings were detected, may be used to obfuscate strings (option --decode to see all)

Intelligence

File Origin
# of uploads :
1
# of downloads :
141
Origin country :
n/a
Vendor Threat Intelligence
Verdict:
Legit
File type:
application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
Has a screenshot:
False
Contains macros:
True
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/179273/
Detection(s):
SecuriteInfo.com.Exploit.Siggen3.19777.16732.15393.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.DOCXSTRGOOD._IEX.210408.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.OdysseyAndBattle.20210707.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a process with a hidden window
Sending a UDP request
Sending an HTTP GET request to an infection source
Creating a file in the %temp% directory
Launching the default Windows debugger (dwwin.exe)
Creating a process from a recently created file
Launching a process
Using the Windows Management Instrumentation requests
Launching cmd.exe command interpreter
Connection attempt to an infection source
Unauthorized injection to a recently created process
Launching a process by exploiting the app vulnerability
Result
Verdict:
Malicious
File Type:
Legacy Excel File with Macro
Link:
https://app.docguard.net/06d5e005a6b82b8b04af686c2d24f14d36a7a842eb0b38940bcf3453d1222ad4/results/dashboard
Result
Verdict:
MALICIOUS
Link:
https://labs.inquest.net/dfi/sha256/06d5e005a6b82b8b04af686c2d24f14d36a7a842eb0b38940bcf3453d1222ad4
Details
Macro with Startup Hook
Detected macro logic that will automatically execute on document open. Most malware contains some execution hook.
Macro Contains Suspicious String
Detected a macro with a suspicious string. Suspicious strings include privileged function calls, obfuscations, odd registry keys, etc...
Result
Threat name:
Unknown
Detection:
malicious
Classification:
expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/832964
Signature
.NET source code contains potential unpacker
Creates an undocumented autostart registry key
Document contains an embedded VBA macro which may execute processes
Document contains an embedded VBA macro with suspicious strings
Document exploit detected (process start blacklist hit)
Drops executable to a common third party application directory
Hides threads from debuggers
Injects a PE file into a foreign processes
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Powershell drops PE file
Sigma detected: Microsoft Office Product Spawning Windows Shell
Sigma detected: Suspicious Script Execution From Temp Folder
Sigma detected: WScript or CScript Dropper
Very long command line found
Wscript starts Powershell (via cmd or directly)
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 465394 Sample: SecuriteInfo.com.Exploit.Si... Startdate: 14/08/2021 Architecture: WINDOWS Score: 100 41 Multi AV Scanner detection for dropped file 2->41 43 Multi AV Scanner detection for submitted file 2->43 45 .NET source code contains potential unpacker 2->45 47 7 other signatures 2->47 9 EXCEL.EXE 189 21 2->9         started        process3 signatures4 61 Very long command line found 9->61 12 powershell.exe 12 7 9->12         started        process5 dnsIp6 39 192.227.158.111, 49165, 80 AS-COLOCROSSINGUS United States 12->39 35 C:\Users\user\AppData\Local\Temp\acd.exe, PE32 12->35 dropped 63 Powershell drops PE file 12->63 17 acd.exe 1 11 12->17         started        file7 signatures8 process9 file10 31 C:\Users\user\...\Acrobat Reader DC.exe, PE32 17->31 dropped 33 C:\Users\user\...\_Cjvdnberkfbwqwrpbjverv.vbs, ASCII 17->33 dropped 49 Multi AV Scanner detection for dropped file 17->49 51 Creates an undocumented autostart registry key 17->51 53 Drops executable to a common third party application directory 17->53 55 Injects a PE file into a foreign processes 17->55 21 acd.exe 1 17->21         started        25 wscript.exe 1 17->25         started        27 powershell.exe 6 17->27         started        signatures11 process12 dnsIp13 37 saptransmissions.dvrlists.com 194.5.97.107, 49166, 49167, 49168 DANILENKODE Netherlands 21->37 57 Hides threads from debuggers 21->57 59 Wscript starts Powershell (via cmd or directly) 25->59 29 powershell.exe 7 25->29         started        signatures14 process15
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/06d5e005a6b82b8b04af686c2d24f14d36a7a842eb0b38940bcf3453d1222ad4/
Threat name:
Script-Macro.Trojan.Woreflint
Create hunting rule
Status:
Malicious
First seen:
2021-08-13 20:04:20 UTC
AV detection:
16 of 46 (34.78%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=a3k6abngxavywbfpnbwc2jhrju3kpkcc5mftrfalz42fhujcflka._file
Result
Malware family:
bitrat
Create hunting rule
Score:
  10/10
Tags:
family:bitrat macro macro_on_action suricata trojan upx
Link:
https://tria.ge/reports/210814-2j2qgmkwne/
Behaviour
Checks processor information in registry
Enumerates system info in registry
Modifies Internet Explorer settings
Modifies registry class
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Office loads VBA resources, possible macro or embedded object present
Enumerates physical storage devices
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Loads dropped DLL
Blocklisted process makes network request
Downloads MZ/PE file
Executes dropped EXE
UPX packed file
BitRAT
BitRAT Payload
Process spawned unexpected child process
suricata: ET MALWARE Observed Malicious SSL Cert (BitRAT CnC)
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/06d5e005a6b82b8b04af686c2d24f14d36a7a842eb0b38940bcf3453d1222ad4

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_ZLoader_xls_20210125
Create hunting rule
Author:abuse.ch
Description:Detects ZLoader XLS

File information

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

Cape
Cape
https://www.capesandbox.com/analysis/179273/

Comments