MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 88b2bb4d5426b3d60dc02ab3c1732108a426d366fa3f4e5d51b2445fd1afa19d. 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: 10

Intelligence 10 IOCs YARA 8 File information Comments

SHA256 hash:	88b2bb4d5426b3d60dc02ab3c1732108a426d366fa3f4e5d51b2445fd1afa19d
SHA3-384 hash:	38d753a4503582b2642874f47a8dcf670de5c138d2f6658649d013057d27408536f8d466c28ddc7b4662de38dd937d4e
SHA1 hash:	fa8740fd635de45b3c14040dd929bfe0fd0a27e6
MD5 hash:	736c49626b1f0738edbcc392eb4f837d
humanhash:	tennessee-south-triple-robert
File name:	1-Total New Invoices Monday Dec 14 2020.xlsm
Download:	download sample
Signature	Dridex Create hunting rule
File size:	58'672 bytes
First seen:	2020-12-15 06:12:36 UTC
Last seen:	2021-04-29 23:04:12 UTC
File type:	xlsm
MIME type:	application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
ssdeep	1536:k4whFqRi2+3U9KUaYEcUdKP8J4syMQKjx6Jy5scPGPdq/2:k4Az2moKUafcU/LyM9kJy5BPu
TLSH	EF43F14EDE5AEF1CCA212CBAD7A400F8D9C4B1916616F01A18D062EF66F3499D70FB47
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: 10

OLE dump

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

Section ID	Section size	Section name
A1	479 bytes	PROJECT
A2	86 bytes	PROJECTwm
A3	3712 bytes	VBA/Module1
A4	1447 bytes	VBA/Sheet1
A5	1047 bytes	VBA/ThisWorkbook
A6	2979 bytes	VBA/_VBA_PROJECT
A7	1960 bytes	VBA/__SRP_0
A8	281 bytes	VBA/__SRP_1
A9	453 bytes	VBA/__SRP_2
A10	526 bytes	VBA/__SRP_3
A11	530 bytes	VBA/__SRP_4
A12	156 bytes	VBA/__SRP_5
A13	565 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
Suspicious	Run	May run an executable file or a system command
Suspicious	Chr	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)
Suspicious	XLM macrosheet	XLM macrosheet found. It could contain malicious code

Intelligence

File Origin

# of uploads :

746

# of downloads :

166

Origin country :

n/a

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

88b2bb4d5426b3d60dc02ab3c1732108a426d366fa3f4e5d51b2445fd1afa19d.xlsm

Verdict:

Malicious activity

Analysis date:

2020-12-15 02:44:53 UTC

Tags:

macros macros40

Link:

https://app.any.run/tasks/21e30871-141b-4b1e-991f-5d43e19131d0

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.DridexGrownSoUgly.20201214.UNOFFICIAL

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

DNS request

Creating a file in the %temp% directory

Creating a process with a hidden window

Sending a custom TCP request by exploiting the app vulnerability

Launching a process by exploiting the app vulnerability

Result

Verdict:

Malicious

File Type:

OOXML Excel File with Excel4Macro

Link:

https://app.docguard.net/88b2bb4d5426b3d60dc02ab3c1732108a426d366fa3f4e5d51b2445fd1afa19d/results/dashboard

Result

Gathering data

Result

Threat name:

Dridex

Detection:

malicious

Classification:

bank.expl.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/562670

Signature

Detected Dridex e-Banking trojan

Document contains an embedded VBA macro which may execute processes

Document exploit detected (creates forbidden files)

Document exploit detected (drops PE files)

Document exploit detected (process start blacklist hit)

Document exploit detected (UrlDownloadToFile)

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

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/88b2bb4d5426b3d60dc02ab3c1732108a426d366fa3f4e5d51b2445fd1afa19d/

Threat name:

Document-Word.Infostealer.Dridex

Status:

Malicious

First seen:

2020-12-14 22:32:45 UTC

File Type:

Document

Extracted files:

AV detection:

16 of 28 (57.14%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=rczlwtkue2z5mdoafkz4c4zbbcscnu3g7i7u4xkrwjcf7unpugoq._file

Result

Malware family:

dridex

Score:

10/10

Tags:

family:dridex botnet loader macro

Link:

https://tria.ge/reports/201215-cd8jabkl2s/

Behaviour

Enumerates system info in registry

Modifies Internet Explorer settings

Suspicious behavior: AddClipboardFormatListener

Suspicious use of SetWindowsHookEx

Checks processor information in registry

Suspicious use of WriteProcessMemory

Loads dropped DLL

Dridex Loader

Dridex

Process spawned unexpected child process

Malware Config

C2 Extraction:

77.220.64.37:443
51.15.176.55:3389
85.25.144.36:4643
139.162.53.147:4443

Please note that we are no longer able to provide a coverage score for Virus Total.

Threat name:

Dropper

Score:

0.80

Link:

https://yomi.yoroi.company/submissions/88b2bb4d5426b3d60dc02ab3c1732108a426d366fa3f4e5d51b2445fd1afa19d

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

Rule name:	win_dridex_loader_v2 Create hunting rule
Author:	Johannes Bader @viql
Description:	detects some Dridex loaders

File information

The table below shows additional information about this malware sample such as delivery method and external references.

No further information available

Comments

Login required

You need to login to in order to write a comment. Login with your abuse.ch account.

No comments found for this malware sample