MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 925dbf95054df732ae3e22d9549cc9b8f9eee2fd0d05f9cc59091c197b6be637. 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: 19

Intelligence 8 IOCs YARA 1 File information Comments 1

SHA256 hash:	925dbf95054df732ae3e22d9549cc9b8f9eee2fd0d05f9cc59091c197b6be637
SHA3-384 hash:	41e852c3eecec88f02accaa7bff3ac72f86b2429a402342da93280d74f2ad78e64d0c57fce65e6289644bf0c9f92aecd
SHA1 hash:	4b2ff00809d321e3cc3cd647c1a26b5556c5fba8
MD5 hash:	1c54dba00a0049d433c29f7eabf1b486
humanhash:	item-spring-double-mountain
File name:	1c54dba00a0049d433c29f7eabf1b486
Download:	download sample
Signature	Dridex Create hunting rule
File size:	730'624 bytes
First seen:	2021-07-14 17:41:21 UTC
Last seen:	Never
File type:	xlsx
MIME type:	application/vnd.ms-excel
ssdeep	12288:bRYbXrlUc6XS/CwRl+4MW1H5onZHBDznxcp/c0UGtkbByxlFYd2DrpbA:UUc6EjDMW1UrDjxcNcfgZI2
TLSH	T184F459E5ABA4CDB5EB01C1718C9D1A586374CC118A49AFC77255B038FF3BB798E881C6
Reporter	zbetcheckin
Tags:	Dridex excel xlsx

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: 19

Application name is Microsoft Excel

Office document is in OLE format

Office document contains VBA Macros

OLE dump

MalwareBazaar was able to identify 10 sections in this file using oledump:

Section ID	Section size	Section name
1	114 bytes	CompObj
2	256 bytes	DocumentSummaryInformation
3	272 bytes	SummaryInformation
4	713607 bytes	Workbook
5	418 bytes	_VBA_PROJECT_CUR/PROJECT
6	62 bytes	_VBA_PROJECT_CUR/PROJECTwm
7	977 bytes	_VBA_PROJECT_CUR/VBA/Sheet1
8	2084 bytes	_VBA_PROJECT_CUR/VBA/ThisWorkbook
9	2640 bytes	_VBA_PROJECT_CUR/VBA/_VBA_PROJECT
10	515 bytes	_VBA_PROJECT_CUR/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
Suspicious	Environ	May read system environment variables
Suspicious	Write	May write to a file (if combined with Open)
Suspicious	CreateTextFile	May create a text file
Suspicious	Shell	May run an executable file or a system command
Suspicious	Wscript.Shell	May run an executable file or a system command
Suspicious	CreateObject	May create an OLE object
Suspicious	Chr	May attempt to obfuscate specific strings (use option --deobf to deobfuscate)
Suspicious	Exec	May run an executable file or a system
Suspicious	Hex Strings	Hex-encoded strings were detected, may be used to obfuscate strings (option --decode to see all)

Intelligence

File Origin

# of uploads :

# of downloads :

128

Origin country :

n/a

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

1c54dba00a0049d433c29f7eabf1b486

Verdict:

No threats detected

Analysis date:

2021-07-14 17:42:43 UTC

Tags:

macros macros-on-open

Link:

https://app.any.run/tasks/82a6377f-4472-49ae-b611-223b62ee0f5c

Note:

ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample

Verdict:

Legit

File type:

application/vnd.openxmlformats-officedocument.spreadsheetml.sheet

Has a screenshot:

False

Contains macros:

True

Detection:

n/a

Link:

https://www.capesandbox.com/analysis/171794/

Detection(s):

Doc.Dropper.MSHTA-6966166-0

Result

Verdict:

Malicious

File Type:

Legacy Excel File with Macro

Link:

https://app.docguard.net/925dbf95054df732ae3e22d9549cc9b8f9eee2fd0d05f9cc59091c197b6be637/results/dashboard

Payload URLs

URL

File name

edibleupcountry.com

WorkBook

Document image

Image:

Download PNG

Result

Verdict:

MALICIOUS

Link:

https://labs.inquest.net/dfi/sha256/925dbf95054df732ae3e22d9549cc9b8f9eee2fd0d05f9cc59091c197b6be637

Details

Macro with Startup Hook

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

Macro with File System Write

Detected macro logic that can write data to the file system.

Macro Contains Suspicious String

Detected a macro with a suspicious string. Suspicious strings include privileged function calls, obfuscations, odd registry keys, etc...

InQuest Machine Learning

An InQuest machine-learning model classified this macro as potentially malicious.

Result

Threat name:

CobaltStrike

Detection:

malicious

Classification:

troj.expl.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/816462

Signature

C2 URLs / IPs found in malware configuration

Contains functionality to detect sleep reduction / modifications

Detected unpacking (changes PE section rights)

Detected unpacking (overwrites its own PE header)

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 functions possibly related to ADO stream file operations

Document exploit detected (creates forbidden files)

Document exploit detected (process start blacklist hit)

Found malware configuration

Machine Learning detection for dropped file

Machine Learning detection for sample

Malicious sample detected (through community Yara rule)

Microsoft Office creates scripting files

Multi AV Scanner detection for dropped file

Multi AV Scanner detection for submitted file

Office document tries to convince victim to disable security protection (e.g. to enable ActiveX or Macros)

Sigma detected: Microsoft Office Product Spawning Windows Shell

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

Tries to detect virtualization through RDTSC time measurements

Uses known network protocols on non-standard ports

Yara detected CobaltStrike

Yara detected Powershell download and execute

Behaviour

Behavior Graph:

Download SVG

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/925dbf95054df732ae3e22d9549cc9b8f9eee2fd0d05f9cc59091c197b6be637/

Threat name:

Script.Trojan.Wacatac

Status:

Malicious

First seen:

2021-07-14 17:42:07 UTC

File Type:

Document

Extracted files:

AV detection:

13 of 45 (28.89%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=sjo37fifjx3tflr6elmvjhgjxd465yx5buc7ttczbeobs63l4y3q._file

Result

Malware family:

cobaltstrike

Score:

10/10

Tags:

family:cobaltstrike botnet:1359593325 backdoor trojan

Link:

https://tria.ge/reports/210714-74y1522k2x/

Behaviour

Checks processor information in registry

Enumerates system info in registry

Modifies Internet Explorer settings

Suspicious behavior: AddClipboardFormatListener

Suspicious use of FindShellTrayWindow

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Office loads VBA resources, possible macro or embedded object present

Loads dropped DLL

Blocklisted process makes network request

Downloads MZ/PE file

Executes dropped EXE

Cobaltstrike

Process spawned unexpected child process

Malware Config

C2 Extraction:

http://192.236.146.5:80/cx

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/925dbf95054df732ae3e22d9549cc9b8f9eee2fd0d05f9cc59091c197b6be637

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:	INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture Create hunting rule
Author:	ditekSHen
Description:	Detect executables with stomped PE compilation timestamp that is greater than local current time