MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c7e6848fd63681514d6dad3032e358a257dde3aa1cd3b349306283356bca2608. 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: 10


Maldoc score: 15


Intelligence 10 IOCs YARA 8 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c7e6848fd63681514d6dad3032e358a257dde3aa1cd3b349306283356bca2608
SHA3-384 hash: 523fe3f73f418d9ceae58e384a88add438e5afa3b1c89375e3f487bc697a087df5ce7bc44a9495a6df6ceb575377385c
SHA1 hash: 234b65bc42a077c98c61a8eb4870d41e0039013e
MD5 hash: a52a88ae97dd408d38d98c9aa7f81142
humanhash: bravo-music-winner-johnny
File name:1_Total New Invoices-Thursday January 21_2021.xlsm
Download: download sample
Signature Dridex
Create hunting rule
File size:34'299 bytes
First seen:2021-01-21 14:57:38 UTC
Last seen:2021-02-19 19:31:36 UTC
File type:Excel file xlsm
MIME type:application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
ssdeep 384:h70vIUlM9z5B0QxAN57zJb3ke5QNt5Eil1LyGAEGibf8FMFHvVUkPnGq/g4jueSL:WQxENxzJb3e5bJ1bf8FmHvV3/Gq/g9ZL
TLSH 6AF2CFADC4226D7CC637443A821C00E1EB5D70E29945F25E19C0F2DCA6D75EB13AE29E
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: 15
OLE dump

MalwareBazaar was able to identify 25 sections in this file using oledump:

Section IDSection sizeSection name
A1664 bytesPROJECT
A2128 bytesPROJECTwm
A35129 bytesVBA/Module1
A41525 bytesVBA/Sheet1
A5991 bytesVBA/Sheet2
A6991 bytesVBA/Sheet3
A7999 bytesVBA/ThisWorkbook
A84043 bytesVBA/_VBA_PROJECT
A92485 bytesVBA/__SRP_0
A10337 bytesVBA/__SRP_1
A11505 bytesVBA/__SRP_2
A12682 bytesVBA/__SRP_3
A13860 bytesVBA/dir
B1115 bytesCompObj
B2178 bytesf
B3110 bytesi02/CompObj
B440 bytesi02/f
B50 bytesi02/o
B6110 bytesi03/CompObj
B740 bytesi03/f
B80 bytesi03/o
B9152 byteso
B1048 bytesx
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
AutoExecWorld_time_Print_LayRuns when the file is opened and ActiveX objects trigger events
SuspiciousRunMay run an executable file or a system command
SuspiciousLibMay run code from a DLL
SuspiciousURLDownloadToFileAMay download files from the Internet
SuspiciousChrMay attempt to obfuscate specific strings (use option --deobf to deobfuscate)
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 :
386
# of downloads :
147
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
1_Total New Invoices-Thursday January 21_2021.xlsm
Verdict:
Malicious activity
Analysis date:
2021-01-21 14:58:07 UTC
Tags:
macros macros-on-open macros40
Link:
https://app.any.run/tasks/96699d1f-bb22-4612-8d43-03e0a8ffe1e2

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
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.rndcell.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a process with a hidden window
DNS request
Sending an HTTP GET request
Launching a process by exploiting the app vulnerability
Sending a custom TCP request by exploiting the app vulnerability
Result
Verdict:
Malicious
File Type:
OOXML Excel File with Excel4Macro
Link:
https://app.docguard.net/c7e6848fd63681514d6dad3032e358a257dde3aa1cd3b349306283356bca2608/results/dashboard
Result
Threat name:
Hidden Macro 4.0
Create hunting rule
Detection:
malicious
Classification:
expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/587378
Signature
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 Excel 4.0 Macro with suspicious formulas
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
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
System process connects to network (likely due to code injection or exploit)
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 342716 Sample: 1_Total New Invoices-Thursd... Startdate: 21/01/2021 Architecture: WINDOWS Score: 100 52 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->52 54 Multi AV Scanner detection for submitted file 2->54 56 Document exploit detected (drops PE files) 2->56 58 7 other signatures 2->58 7 EXCEL.EXE 247 73 2->7         started        process3 dnsIp4 40 reliablelifts.co.in 103.83.81.27, 443, 49169 ZINIOSS-AS-INZiniosInformationTechnologyPvtLtdIN India 7->40 42 creditoenusa.com 192.185.224.50, 443, 49191 UNIFIEDLAYER-AS-1US United States 7->42 44 3 other IPs or domains 7->44 32 C:\Users\user\AppData\Local\Temp\sxzjqf.dll, PE32 7->32 dropped 34 C:\Users\user\AppData\Local\...\nnmumzom.dll, PE32 7->34 dropped 36 C:\Users\user\AppData\Local\Temp\kxwni.dll, PE32 7->36 dropped 38 6 other malicious files 7->38 dropped 62 Document exploit detected (creates forbidden files) 7->62 64 Document exploit detected (process start blacklist hit) 7->64 66 Document exploit detected (UrlDownloadToFile) 7->66 12 regsvr32.exe 7->12         started        14 regsvr32.exe 7->14         started        16 regsvr32.exe 7->16         started        18 7 other processes 7->18 file5 signatures6 process7 process8 20 regsvr32.exe 12->20         started        23 regsvr32.exe 9 14->23         started        26 regsvr32.exe 9 16->26         started        28 regsvr32.exe 9 18->28         started        30 regsvr32.exe 9 18->30         started        dnsIp9 60 System process connects to network (likely due to code injection or exploit) 20->60 46 198.57.200.100, 3786, 49173, 49179 UNIFIEDLAYER-AS-1US United States 23->46 48 194.225.58.214, 443, 49170, 49174 TUMS-IR-ASIR Iran (ISLAMIC Republic Of) 23->48 50 2 other IPs or domains 23->50 signatures10
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c7e6848fd63681514d6dad3032e358a257dde3aa1cd3b349306283356bca2608/
Threat name:
Script-Macro.Infostealer.Dridex
Create hunting rule
Status:
Malicious
First seen:
2021-01-21 14:50:15 UTC
File Type:
Document
Extracted files:
60
AV detection:
12 of 29 (41.38%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=y7tijd6wg2avctlnvuydfy2yujl53y5kdtj3gsjqmkbtk26keyea._file
Result
Malware family:
dridex
Create hunting rule
Score:
  10/10
Tags:
family:dridex botnet loader macro ransomware xlm
Link:
https://tria.ge/reports/210121-cme91ln2hn/
Behaviour
Enumerates system info in registry
Modifies Internet Explorer settings
Modifies registry class
Suspicious behavior: AddClipboardFormatListener
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Checks processor information in registry
Office loads VBA resources, possible macro or embedded object present
Enumerates physical storage devices
Loads dropped DLL
Dridex Loader
Dridex
Process spawned unexpected child process
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Eldorado
Score:
0.90
Link:
https://yomi.yoroi.company/submissions/c7e6848fd63681514d6dad3032e358a257dde3aa1cd3b349306283356bca2608

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.

Comments