MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 555737271a58f1b566e2d15afb128ae37c8475923ef73d69480d047f40ed098e. 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: 8


Maldoc score: 12


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

SHA256 hash: 555737271a58f1b566e2d15afb128ae37c8475923ef73d69480d047f40ed098e
SHA3-384 hash: f07348c68e1ae0310944c9fd3fa003148c3f7e08caef0bb3f9994b5d7615a5ca161552212953ddf8bb7768340e1a4e95
SHA1 hash: 1eab5eb7e2158d84f80a2c90fbc1c2cf0e188213
MD5 hash: 03fd6b515355bb513131951edf43ad5e
humanhash: berlin-mobile-mango-berlin
File name:1 Total New Invoices_Wendesday March 10_2021.xlsm
Download: download sample
Signature Dridex
Create hunting rule
File size:37'658 bytes
First seen:2021-03-10 16:07:50 UTC
Last seen:2021-03-26 01:44:34 UTC
File type:Excel file xlsm
MIME type:application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
ssdeep 768:z3QxBcUQiZkEqgdL5FgiqcJ8ttzr4iufH49uWpUnv9qok1:zgxhQERqgdL5FvqE8tLSH49boqow
TLSH B303E02CE161AC99C23B8D399A9D42F9F94981C08C81FA7D5E54EE1D73419F3178EACC
Reporter JAMESWT_WT
Tags:Dridex 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
A1475 bytesPROJECT
A286 bytesPROJECTwm
A35776 bytesVBA/Module1
A41425 bytesVBA/Sheet1
A5999 bytesVBA/ThisWorkbook
A63244 bytesVBA/_VBA_PROJECT
A72253 bytesVBA/__SRP_0
A8435 bytesVBA/__SRP_1
A91411 bytesVBA/__SRP_2
A10824 bytesVBA/__SRP_3
A11531 bytesVBA/__SRP_4
A12166 bytesVBA/__SRP_5
A13565 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 :
338
# of downloads :
103
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
1 Total New Invoices_Wendesday March 10_2021.xlsm
Verdict:
No threats detected
Analysis date:
2021-03-10 15:45:23 UTC
Tags:
macros macros40
Link:
https://app.any.run/tasks/17a66006-e695-4e5f-b42a-507332c378d5

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.DOCXSTRGOOD.HTTPS
Create hunting rule

TwinWave.EvilDoc.DridexSureShot.20210301.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.DridexSureShot.M2.20210301.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.Heur.17844.12669.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.Heur.27802.5334.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/555737271a58f1b566e2d15afb128ae37c8475923ef73d69480d047f40ed098e/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:
troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/634648
Signature
C2 URLs / IPs found in malware configuration
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
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
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: 366294 Sample: 1 Total New Invoices_Wendes... Startdate: 10/03/2021 Architecture: WINDOWS Score: 100 42 Found malware configuration 2->42 44 Multi AV Scanner detection for dropped file 2->44 46 Multi AV Scanner detection for submitted file 2->46 48 9 other signatures 2->48 7 EXCEL.EXE 87 53 2->7         started        process3 dnsIp4 36 dev.davaohorizon.com 108.167.140.99, 443, 49165 UNIFIEDLAYER-AS-1US United States 7->36 38 mycellections.com 77.72.4.66, 443, 49168 KRYSTALGR United Kingdom 7->38 22 C:\Users\user\AppData\Local\...\pdlhpdz.dll, PE32 7->22 dropped 24 C:\Users\user\AppData\Local\...\lqmxgape.dll, PE32 7->24 dropped 26 C:\Users\user\AppData\...\ppt7zvc7l[1].zip, PE32 7->26 dropped 28 2 other malicious files 7->28 dropped 50 Document exploit detected (creates forbidden files) 7->50 52 Document exploit detected (process start blacklist hit) 7->52 54 Document exploit detected (UrlDownloadToFile) 7->54 12 regsvr32.exe 7->12         started        14 regsvr32.exe 7->14         started        file5 signatures6 process7 process8 16 regsvr32.exe 9 12->16         started        19 regsvr32.exe 9 14->19         started        dnsIp9 40 System process connects to network (likely due to code injection or exploit) 16->40 30 178.33.183.53, 49171, 49173, 49176 OVHFR France 19->30 32 157.7.139.198, 49172, 49175, 49178 INTERQGMOInternetIncJP Japan 19->32 34 210.65.244.166, 443, 49169, 49170 HINETDataCommunicationBusinessGroupTW Taiwan; Republic of China (ROC) 19->34 signatures10
Gathering data
Threat name:
Document-Office.Downloader.SLoad
Create hunting rule
Status:
Malicious
First seen:
2021-03-10 14:12:39 UTC
File Type:
Document
Extracted files:
37
AV detection:
3 of 26 (11.54%)
Threat level:
  3/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=kvltojy2ldy3kzxc2fnpweuk4n6ii5msh33t22kibuch6qhnbgha._file
Result
Malware family:
n/a
Score:
  8/10
Tags:
macro xlm
Link:
https://tria.ge/reports/210310-g27q73j4ax/
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.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/555737271a58f1b566e2d15afb128ae37c8475923ef73d69480d047f40ed098e

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:dridex_halo_generated
Create hunting rule
Author:Halogen Generated Rule, Corsin Camichel
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.

Comments