MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 adbfe3ab87bdb320c3ef08a99550da2b188dfabe822b90519806e5f399732b69. 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: 35

Intelligence 10 IOCs YARA 8 File information Comments

SHA256 hash:	adbfe3ab87bdb320c3ef08a99550da2b188dfabe822b90519806e5f399732b69
SHA3-384 hash:	4973120338166a535d5456164f1c8dba36d063d1c3d065c9687776f7def22d79292c3bd57a34160e031a6c15bc005a13
SHA1 hash:	74661c38f3b1a769862bd2e963b5806e71a50986
MD5 hash:	8e8fb3afaa9fa771d795cba815f7f409
humanhash:	whiskey-river-river-cardinal
File name:	Subconract 504.xlsm
Download:	download sample
Signature	Dridex Create hunting rule
File size:	793'191 bytes
First seen:	2021-02-22 16:36:34 UTC
Last seen:	2021-02-22 18:56:56 UTC
File type:	xlsm
MIME type:	application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
ssdeep	12288:VSZfnIN8qis0K7Tewqxu25sF81WPahDhuKWYkLay/enOxWR44VB0cY6OYCnfEM7O:VSZRCywhvPDDRenOxWluA10L7gt
TLSH	AEF4230640A2D1F4FE635F7D63AF5101F1391AC6D103BCE929AEA31812E6AF5271C3E6
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: 35

OLE dump

MalwareBazaar was able to identify 28 sections in this file using oledump:

Section ID	Section size	Section name
A1	97 bytes	CJka5H3iuSV/CompObj
A2	267 bytes	CJka5H3iuSV/VBFrame
A3	38 bytes	CJka5H3iuSV/f
A4	0 bytes	CJka5H3iuSV/o
A5	97 bytes	OjyQABhDRRWt3m5L/CompObj
A6	298 bytes	OjyQABhDRRWt3m5L/VBFrame
A7	94 bytes	OjyQABhDRRWt3m5L/f
A8	4788 bytes	OjyQABhDRRWt3m5L/o
A9	793 bytes	PROJECT
A10	266 bytes	PROJECTwm
A11	3476 bytes	VBA/CJka5H3iuSV
A12	3271 bytes	VBA/Ei46_Tuzl_wrxh
A13	2086 bytes	VBA/OjyQABhDRRWt3m5L
A14	991 bytes	VBA/Sheet1
A15	1895 bytes	VBA/ThisWorkbook
A16	12127 bytes	VBA/W1YSC_Xi2_hTJQ
A17	8629 bytes	VBA/_VBA_PROJECT
A18	2714 bytes	VBA/__SRP_0
A19	349 bytes	VBA/__SRP_1
A20	410 bytes	VBA/__SRP_2
A21	462 bytes	VBA/__SRP_3
A22	208 bytes	VBA/__SRP_4
A23	234 bytes	VBA/__SRP_5
A24	207 bytes	VBA/__SRP_6
A25	220 bytes	VBA/__SRP_7
A26	4301 bytes	VBA/cMcdwXUX
A27	1107 bytes	VBA/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:

Type	Keyword	Description
AutoExec	Workbook_Open	Runs when the Excel Workbook is opened
Hex String	Tth5D	5474683544
Hex String		202020202020
Hex String	wwwwww	777777777777 code and P-code are different, this may have been used to hide malicious code
Suspicious	Environ	May read system environment variables
Suspicious	Open	May open a file
Suspicious	write	May write to a file (if combined with Open)
Suspicious	Put	May write to a file (if combined with Open)
Suspicious	Binary	May read or write a binary file (if combined with Open)
Suspicious	savetofile	May create a text file
Suspicious	run	May run an executable file or a system command
Suspicious	Create	May execute file or a system command through WMI
Suspicious	ShowWindow	May hide the application
Suspicious	GetObject	May get an OLE object with a running instance
Suspicious	Windows	May enumerate application windows (if combined with Shell.Application object)
Suspicious	lib	May run code from a DLL
Suspicious	Chr	May attempt to obfuscate specific strings (use option --deobf to deobfuscate)
Suspicious	ChrW	May attempt to obfuscate specific strings (use option --deobf to deobfuscate)
Suspicious	Xor	May attempt to obfuscate specific strings (use option --deobf to deobfuscate)
Suspicious	Hex Strings	Hex-encoded strings were detected, may be used to obfuscate strings (option --decode to see all)
Suspicious	Base64 Strings	Base64-encoded strings were detected, may be used to obfuscate strings (option --decode to see all)

Intelligence

File Origin

# of uploads :

# of downloads :

140

Origin country :

n/a

Vendor Threat Intelligence

Verdict:

Malicious

File type:

application/vnd.ms-excel.sheet.macroEnabled.12

Has a screenshot:

False

Contains macros:

True

Detection:

n/a

Link:

https://www.capesandbox.com/analysis/118354/

Detection(s):

TwinWave.EvilDoc.FuncProcessAGoGo.20200805.UNOFFICIAL

TwinWave.EvilDoc.WithGObjComingBackToLife.20201124.UNOFFICIAL

Result

Verdict:

Suspicious

Maliciousness:

Behaviour

Creating a window

Creating a file in the %AppData% directory

Using the Windows Management Instrumentation requests

Launching a process

Creating a process with a hidden window

DNS request

Sending a custom TCP request

Creating a file in the Windows subdirectories

Result

Verdict:

Malicious

File Type:

Excel File with Macro

Link:

https://app.docguard.net/adbfe3ab87bdb320c3ef08a99550da2b188dfabe822b90519806e5f399732b69/results/dashboard

Payload URLs

URL

File name

https://psychologynewmind.com/wp-content/plugins/contact-form-7-datepicker/js/jquery-ui-timepicker/pjtxXrSw.php',

vbaProject.bin

Document image

Image:

Download PNG

Result

Verdict:

MALICIOUS

Details

Macro with Startup Hook

Detected macro logic that will automatically execute on document open. Most malware contains some execution hook.

Document With Minimal Content

Document contains less than 1 kilobyte of semantic information.

Result

Threat name:

Dridex

Detection:

malicious

Classification:

troj.expl.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/614308

Signature

C2 URLs / IPs found in malware configuration

Creates processes via WMI

Document contains an embedded macro with GUI obfuscation

Document contains an embedded VBA macro which may execute processes

Document contains an embedded VBA macro with suspicious strings

Document contains an embedded VBA with many string operations indicating source code obfuscation

Document contains VBA stomped code (only p-code) potentially bypassing AV detection

Found malware configuration

Machine Learning detection for dropped file

Machine Learning detection for sample

Multi AV Scanner detection for submitted file

System process connects to network (likely due to code injection or exploit)

Tries to detect sandboxes / dynamic malware analysis system (file name check)

Yara detected Dridex unpacked file

Behaviour

Behavior Graph:

Download SVG

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/adbfe3ab87bdb320c3ef08a99550da2b188dfabe822b90519806e5f399732b69/

Threat name:

Document-Word.Trojan.GenScript

Status:

Malicious

First seen:

2021-02-22 16:37:06 UTC

File Type:

Document

Extracted files:

AV detection:

19 of 48 (39.58%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=vw76hk4hxwzsbq7pbcuzkug2fmmi36v6qivzaumya3s7hgltfnuq._file

Result

Malware family:

dridex

Score:

10/10

Tags:

family:dridex botnet:111 botnet discovery evasion loader trojan

Link:

https://tria.ge/reports/210222-kzj325l5wx/

Behaviour

Checks processor information in registry

Enumerates system info in registry

Modifies Internet Explorer settings

Modifies registry class

Modifies system certificate store

Suspicious behavior: AddClipboardFormatListener

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

Checks installed software on the system

Checks whether UAC is enabled

Loads dropped DLL

Blocklisted process makes network request

Dridex Loader

Dridex

Process spawned unexpected child process

Malware Config

C2 Extraction:

162.13.114.59:443
70.39.99.196:8172
37.187.115.122:6601

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/adbfe3ab87bdb320c3ef08a99550da2b188dfabe822b90519806e5f399732b69

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:	DridexV4 Create hunting rule
Author:	kevoreilly
Description:	Dridex v4 Payload

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:	MALWARE_Win_DLLLoader Create hunting rule
Author:	ditekSHen
Description:	Detects unknown DLL Loader

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

Rule name:	win_dridex_auto Create hunting rule
Author:	Felix Bilstein - yara-signator at cocacoding dot com
Description:	autogenerated rule brought to you by yara-signator