MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 9af4d082d528b08891e09cce9fb40a66f8414f6e2a71bf2e90a721262584b169. 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: 15

Intelligence 8 IOCs YARA 1 File information Comments 1

SHA256 hash:	9af4d082d528b08891e09cce9fb40a66f8414f6e2a71bf2e90a721262584b169
SHA3-384 hash:	651f97dbfa8fd4f42f050c5a8eed1bb7bdb0f16ca53b79e83e54e95ec6001a74c170ee8cfc41ba5fa1834ce2177d8136
SHA1 hash:	07a8b1eaf77b6b4b77cca8933678b3bd807d6d4b
MD5 hash:	0b2f7083ce53cfa4fdd59ebeb6cc52a7
humanhash:	wolfram-indigo-gee-floor
File name:	0b2f7083ce53cfa4fdd59ebeb6cc52a7
Download:	download sample
Signature	Dridex Create hunting rule
File size:	674'816 bytes
First seen:	2021-07-21 20:19:05 UTC
Last seen:	Never
File type:	xlsx
MIME type:	application/vnd.ms-excel
ssdeep	12288:DGDH3roxGMC/mc4bl3q5uaFsvCgdz2l5MjavMmIf+Rj6UZj:DGDXEUH/4EnsvJZ2lKjavMm/9
TLSH	T1A1E459C1EBE1C92FEBD1957A0C564630127CCC4456804B973356F33AB72BA7C8E9A2D9
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: 15

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	520 bytes	DocumentSummaryInformation
3	268 bytes	SummaryInformation
4	657672 bytes	Workbook
5	422 bytes	_VBA_PROJECT_CUR/PROJECT
6	62 bytes	_VBA_PROJECT_CUR/PROJECTwm
7	977 bytes	_VBA_PROJECT_CUR/VBA/Sheet1
8	1897 bytes	_VBA_PROJECT_CUR/VBA/ThisWorkbook
9	2634 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	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 :

137

Origin country :

n/a

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

0b2f7083ce53cfa4fdd59ebeb6cc52a7

Verdict:

Malicious activity

Analysis date:

2021-07-21 20:25:03 UTC

Tags:

macros macros-on-open loader

Link:

https://app.any.run/tasks/9eba4b0f-e065-4cdb-86ef-850477296689

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/173160/

Detection(s):

SecuriteInfo.com.Office.Macro-9.UNOFFICIAL

TwinWave.EvilDoc.WSHCROVARCHRMATHLONGGONE.20200524.UNOFFICIAL

TwinWave.EvilDoc.AutoTriggerEvilMrFantasy.20200627.UNOFFICIAL

TwinWave.EvilDoc.AutoTriggerEvilMrFantasy.20200705.UNOFFICIAL

TwinWave.EvilDoc.AutoTriggerEvilMrFantasyM3.20200721.UNOFFICIAL

TwinWave.EvilDoc.EvilMrFantasyIceIsNiceEdition.20200806.UNOFFICIAL

TwinWave.EvilDoc.CROWithSailWhosStillListeningIn2020.20201218.UNOFFICIAL

TwinWave.EvilDoc.CROMiscreantNeuralLinkTerra.20210721.UNOFFICIAL

TwinWave.EvilDoc.DrdiexCES1981.20210721.UNOFFICIAL

Result

Verdict:

Malicious

File Type:

Legacy Excel File with Macro

Link:

https://app.docguard.net/9af4d082d528b08891e09cce9fb40a66f8414f6e2a71bf2e90a721262584b169/results/dashboard

Document image

Image:

Download PNG

Result

Verdict:

MALICIOUS

Link:

https://labs.inquest.net/dfi/sha256/9af4d082d528b08891e09cce9fb40a66f8414f6e2a71bf2e90a721262584b169

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...

Result

Threat name:

Dridex

Detection:

malicious

Classification:

troj.expl.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/819757

Signature

C2 URLs / IPs found in malware configuration

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 exploit detected (creates forbidden files)

Document exploit detected (process start blacklist hit)

Downloads files with wrong headers with respect to MIME Content-Type

Found malware configuration

Found PHP interpreter

Machine Learning detection for dropped file

Microsoft Office creates scripting files

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 delay execution (extensive OutputDebugStringW loop)

Uses known network protocols on non-standard ports

Yara detected Dridex unpacked file

Behaviour

Behavior Graph:

Download SVG

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/9af4d082d528b08891e09cce9fb40a66f8414f6e2a71bf2e90a721262584b169/

Threat name:

Script-Macro.Infostealer.Dridex

Status:

Malicious

First seen:

2021-07-21 16:47:39 UTC

AV detection:

9 of 27 (33.33%)

Threat level:

5/5

Result

Malware family:

dridex

Score:

10/10

Tags:

family:dridex botnet:22201 botnet evasion loader trojan

Link:

https://tria.ge/reports/210721-yh59rxks12/

Behaviour

Checks processor information in registry

Enumerates system info in registry

Modifies Internet Explorer settings

Suspicious behavior: AddClipboardFormatListener

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Office loads VBA resources, possible macro or embedded object present

Checks whether UAC is enabled

Loads dropped DLL

Blocklisted process makes network request

Downloads MZ/PE file

Dridex Loader

Dridex

Process spawned unexpected child process

Malware Config

C2 Extraction:

178.238.236.59:443
104.245.52.73:5007
81.0.236.93:13786

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/9af4d082d528b08891e09cce9fb40a66f8414f6e2a71bf2e90a721262584b169

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:	crime_win32_ransom_avaddon_1 Create hunting rule
Author:	@VK_Intel
Description:	Detects Avaddon ransomware
Reference:	https://twitter.com/VK_Intel/status/1300944441390370819