MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8b1203e7ff8ead64a388e8000955871b931202a9fd56ba339de65b01628fff6b. 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 7 File information Comments

SHA256 hash: 8b1203e7ff8ead64a388e8000955871b931202a9fd56ba339de65b01628fff6b
SHA3-384 hash: 14e55c4030f88cc609593d131546ab269cbabc8ed21a4b5d7a522edd912c6148e3b230e7621ff394de82362c5c0537dd
SHA1 hash: 10186c7b0bf23fd6c76a0f529d4d918dfc913987
MD5 hash: 947a7bffc14cbf99a733cf80b08fbecf
humanhash: sierra-alaska-arizona-hamper
File name:sample20210201-01.xlsm
Download: download sample
Signature Dridex
File size:87'810 bytes
First seen:2021-02-01 11:01:42 UTC
Last seen:2021-02-11 18:20:35 UTC
File type:Excel file xlsm
MIME type:application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
ssdeep 1536:ngxxGLD4PQrjaE7RZq95Za++atZvbc8CX3jvBrSr4yxnAu+Ldi2mCq/gBi:gxxGEQrjaC7q5a++atZDc8C3jRSziuBj
TLSH 5983123DCA1B5A78C7629039D56C49F0E9234BF01F17748976EEF83D2D210FB82A6916
Reporter cocaman
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 13 sections in this file using oledump:

Section IDSection sizeSection name
A1520 bytesPROJECT
A2104 bytesPROJECTwm
A36195 bytesVBA/Sheet1
A4991 bytesVBA/Sheet2
A5991 bytesVBA/Sheet3
A6999 bytesVBA/ThisWorkbook
A73270 bytesVBA/_VBA_PROJECT
A82176 bytesVBA/__SRP_0
A9423 bytesVBA/__SRP_1
A10780 bytesVBA/__SRP_2
A111045 bytesVBA/__SRP_3
A12552 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 :
49
# of downloads :
156
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
sample20210201-01.xlsm
Verdict:
Suspicious activity
Analysis date:
2021-02-01 10:50:28 UTC
Tags:
macros macros40

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
Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Result
Verdict:
Malicious
File Type:
OOXML Excel File with Excel4Macro
Document image
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:
Detection:
malicious
Classification:
bank.expl.evad
Score:
100 / 100
Signature
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)
Found malware configuration
Machine Learning detection for dropped 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)
Behaviour
Behavior Graph:
Threat name:
Document-Word.Infostealer.Dridex
Status:
Malicious
First seen:
2021-02-01 11:02:07 UTC
File Type:
Document
Extracted files:
42
AV detection:
14 of 28 (50.00%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  8/10
Tags:
macro xlm
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
Author:abuse.ch
Rule name:Email_stealer_bin_mem
Author:James_inthe_box
Description:Email in files like avemaria
Rule name:IPPort_combo_mem
Author:James_inthe_box
Description:IP and port combo
Rule name:Microsoft_XLSX_with_Macrosheet
Rule name:Select_from_enumeration
Author:James_inthe_box
Description:IP and port combo
Rule name:SharedStrings
Author:Katie Kleemola
Description:Internal names found in LURK0/CCTV0 samples
Rule name:UAC_bypass_bin_mem
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 8b1203e7ff8ead64a388e8000955871b931202a9fd56ba339de65b01628fff6b

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments