MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8243d4138835db46bef1051fd0b396a110968deb97078b07fbd6ab60b6cc3bc3. 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


Dridex


Vendor detections: 6


Maldoc score: 12


Intelligence 6 IOCs YARA 8 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8243d4138835db46bef1051fd0b396a110968deb97078b07fbd6ab60b6cc3bc3
SHA3-384 hash: 9a95c008d003de51f3ec23251ffa7a4ac7beff2ea930286ca2dbc8280cfd85196337d4ca9a8d3f6e14912174dad21110
SHA1 hash: 9c673526cbba244d992898e6088a6cb17c5588f7
MD5 hash: d22a7e87a13baeb583c870e2d40798fc
humanhash: chicken-alabama-yankee-indigo
File name:Statement_of_Account_as_of 02_17_2021.xlsm
Download: download sample
Signature Dridex
Create hunting rule
File size:74'340 bytes
First seen:2021-02-17 15:03:50 UTC
Last seen:2021-02-21 15:24:45 UTC
File type:Excel file xlsm
MIME type:application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
ssdeep 1536:joZ9RqgH8uPxszMfcecIl3KGxXsaTsDu+nYHw9KuCq/glL2:jobRqGxsTgVKGtsaT4uJw9K92
TLSH D073F12ADA12D474C23FE838C5341DD4A11746969853B25D79C8F3BC2A6B1EB1F6E70C
Reporter cocaman
Tags:Dridex xlsm


Avatar
cocaman
Malicious email (T1566.001)
From: "msc.com <Dominique.Simmons@msc.com>" (likely spoofed)
Received: "from host40-231-81-77.serverdedicati.aruba.it (unknown [77.81.231.40]) "
Date: "Wed, 17 Feb 2021 18:07:59 +0100"
Subject: "Ocean Freight overdue invoice Of 02_17_2021"
Attachment: "Statement_of_Account_as_of 02_17_2021.xlsm"

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: 12
OLE dump

MalwareBazaar was able to identify 14 sections in this file using oledump:

Section IDSection sizeSection name
A1578 bytesPROJECT
A2125 bytesPROJECTwm
A37065 bytesVBA/Sheet1
A4991 bytesVBA/Sheet2
A5991 bytesVBA/Sheet3
A6991 bytesVBA/Sheet4
A7999 bytesVBA/ThisWorkbook
A83565 bytesVBA/_VBA_PROJECT
A92328 bytesVBA/__SRP_0
A10464 bytesVBA/__SRP_1
A112291 bytesVBA/__SRP_2
A121048 bytesVBA/__SRP_3
A13569 bytesVBA/dir
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
SuspiciousRunMay run an executable file or a system command
SuspiciousLibMay run code from a DLL
SuspiciousURLDownloadToFileAMay download files from the Internet
SuspiciousHex StringsHex-encoded strings were detected, may be used to obfuscate strings (option --decode to see all)
SuspiciousBase64 StringsBase64-encoded strings were detected, may be used to obfuscate strings (option --decode to see all)
SuspiciousXLM macrosheetXLM macrosheet found. It could contain malicious code

Intelligence

File Origin
# of uploads :
38
# of downloads :
152
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Ocean Freight Payment Notice Of 02_17_2021.msg
Verdict:
No threats detected
Analysis date:
2021-02-17 15:41:58 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/0904d8a5-ad02-42ca-9b02-b86738e6d457

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Legit
File type:
application/vnd.ms-excel.sheet.macroEnabled.12
Has a screenshot:
False
Contains macros:
True
Detection(s):
TwinWave.EvilDoc.Dridex.RevengeOfTheSynth.20210119.UNOFFICIAL
Create hunting rule

Sanesecurity.Badmacro.XlsM.urlmonr2.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Result
Verdict:
Malicious
File Type:
OOXML Excel File with Excel4Macro
Link:
https://app.docguard.net/8243d4138835db46bef1051fd0b396a110968deb97078b07fbd6ab60b6cc3bc3/results/dashboard
Document image
Image:
Download PNG
Document image
Result
Verdict:
SUSPICIOUS
Details
Macro Contains Suspicious String
Detected a macro with a suspicious string. Suspicious strings include privileged function calls, obfuscations, odd registry keys, etc...
Macro with DLL Reference
Detected macro logic that will load additional functionality from Dynamically Linked Libraries (DLLs). While not explicitly malicious, this is a common tactic for accessing APIs that are not otherwised exposed via Visual Basic for Applications (VBA).
Result
Threat name:
Dridex
Create hunting rule
Detection:
malicious
Classification:
bank.troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/610469
Signature
C2 URLs / IPs found in malware configuration
Detected Dridex e-Banking trojan
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 (drops PE files)
Document exploit detected (process start blacklist hit)
Document exploit detected (UrlDownloadToFile)
Found malware configuration
Office process drops PE file
Sigma detected: BlueMashroom DLL Load
Sigma detected: Microsoft Office Product Spawning Windows Shell
Sigma detected: Regsvr32 Anomaly
System process connects to network (likely due to code injection or exploit)
Yara detected Dridex unpacked file
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 354258 Sample: Statement_of_Account_as_of ... Startdate: 17/02/2021 Architecture: WINDOWS Score: 100 44 Found malware configuration 2->44 46 Document exploit detected (drops PE files) 2->46 48 Yara detected Dridex unpacked file 2->48 50 7 other signatures 2->50 7 EXCEL.EXE 87 51 2->7         started        process3 dnsIp4 36 egyvision.medicahealthy.net 167.71.6.214, 443, 49168 DIGITALOCEAN-ASNUS United States 7->36 38 nawaa.newline.website 68.66.248.35, 443, 49165 A2HOSTINGUS United States 7->38 22 C:\Users\user\AppData\Local\...\opbwvyuz.dll, PE32 7->22 dropped 24 C:\Users\user\AppData\Local\...\fkevkurd.dll, PE32 7->24 dropped 26 C:\Users\user\AppData\...\opy3sxc[1].zip, PE32 7->26 dropped 28 2 other malicious files 7->28 dropped 52 Document exploit detected (creates forbidden files) 7->52 54 Document exploit detected (process start blacklist hit) 7->54 56 Document exploit detected (UrlDownloadToFile) 7->56 12 regsvr32.exe 7->12         started        14 regsvr32.exe 7->14         started        file5 signatures6 process7 process8 16 regsvr32.exe 9 12->16         started        20 regsvr32.exe 9 14->20         started        dnsIp9 30 198.1.115.153, 49170, 49173, 49175 UNIFIEDLAYER-AS-1US United States 16->30 32 209.20.87.138, 443, 49169, 49171 RACKSPACEUS United States 16->32 34 151.236.29.248, 49172, 49176, 49178 NFORCENL European Union 16->34 40 Detected Dridex e-Banking trojan 16->40 42 System process connects to network (likely due to code injection or exploit) 20->42 signatures10
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/8243d4138835db46bef1051fd0b396a110968deb97078b07fbd6ab60b6cc3bc3/
Threat name:
Script-Macro.Infostealer.Dridex
Create hunting rule
Status:
Malicious
First seen:
2021-02-17 15:04:05 UTC
File Type:
Document
Extracted files:
47
AV detection:
15 of 47 (31.91%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=qjb5ie4igxnunpxraup5bm4wueijndpls4dywb7322vwbnwmhpbq._file
Result
Malware family:
n/a
Score:
  8/10
Tags:
macro xlm
Link:
https://tria.ge/reports/210217-qy3dd3sw9a/
Behaviour
Checks processor information in registry
Enumerates system info in registry
Modifies Internet Explorer settings
Suspicious behavior: AddClipboardFormatListener
Suspicious use of SetWindowsHookEx
Office loads VBA resources, possible macro or embedded object present
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:ach_Dridex_xlsm_20200528_2
Create hunting rule
Author:abuse.ch
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:Microsoft_XLSX_with_Macrosheet
Create hunting rule
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: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

Dridex

Excel file xlsm 8243d4138835db46bef1051fd0b396a110968deb97078b07fbd6ab60b6cc3bc3

(this sample)

  
Delivery method
Distributed via e-mail attachment
  
Dropping
Dridex

Comments