MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8e5805c72e7234c6b271487e95aeb12a11e65748bfa1af297b5aeee727bebd00. 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: 7

Maldoc score: 11

Intelligence 7 IOCs YARA 7 File information Comments

SHA256 hash:	8e5805c72e7234c6b271487e95aeb12a11e65748bfa1af297b5aeee727bebd00
SHA3-384 hash:	e4329f7fa2ea72f157ca4e6a9e6cadcb7aef12bc975c2b3d9fe006559de8658a5139ff1818123df2fbc1d76f0cd54dd6
SHA1 hash:	0538dcc0ea64eb6e2b863b088de1c71399a2e645
MD5 hash:	4192644d7cba3e64d003ef7a621776b5
humanhash:	robert-golf-kentucky-aspen
File name:	E2I423135660.xlsm
Download:	download sample
Signature	Dridex Create hunting rule
File size:	47'752 bytes
First seen:	2020-12-03 05:31:38 UTC
Last seen:	2020-12-09 23:06:41 UTC
File type:	xlsm
MIME type:	application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
ssdeep	768:ckOxFvX1Yb6z48cpqHK0ldnjCRbUiExAWsTZy0j1JpKyEtXZOqVqR9BVm:OvX1YA4KK6iExAWs1pKVpOKqR9BE
TLSH	7C23F1014606DC58D3F695BD0329B4D4A66E7DC0E448F38C2EE0659C67B22F7839F9AD
Reporter	GovCERT_CH
Tags:	Dridex

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: 11

OLE dump

MalwareBazaar was able to identify 18 sections in this file using oledump:

Section ID	Section size	Section name
A1	542 bytes	PROJECT
A2	86 bytes	PROJECTwm
A3	2774 bytes	VBA/Module1
A4	1702 bytes	VBA/Sheet1
A5	1027 bytes	VBA/ThisWorkbook
A6	3571 bytes	VBA/_VBA_PROJECT
A7	2302 bytes	VBA/__SRP_0
A8	229 bytes	VBA/__SRP_1
A9	604 bytes	VBA/__SRP_2
A10	206 bytes	VBA/__SRP_3
A11	310 bytes	VBA/__SRP_4
A12	334 bytes	VBA/__SRP_5
A13	820 bytes	VBA/dir
B1	112 bytes	CompObj
B2	92 bytes	f
B3	0 bytes	o

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	effect_cl_uj_Layout	Runs when the file is opened and ActiveX objects trigger events
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 :

# of downloads :

159

Origin country :

n/a

Vendor Threat Intelligence

Detection(s):

SecuriteInfo.com.ArtemisTrojan.28411.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

Sending an HTTP GET request

Launching a process by exploiting the app vulnerability

Result

Verdict:

Malicious

File Type:

OOXML Excel File with Excel4Macro

Link:

https://app.docguard.net/8e5805c72e7234c6b271487e95aeb12a11e65748bfa1af297b5aeee727bebd00/results/dashboard

Document image

Image:

Download PNG

Result

Verdict:

UNKNOWN

Result

Threat name:

Dridex

Detection:

malicious

Classification:

expl.bank.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/554151

Signature

Detected Dridex e-Banking trojan

Document contains an embedded VBA macro which may execute processes

Document exploit detected (drops PE files)

Document exploit detected (process start blacklist hit)

Document exploit detected (UrlDownloadToFile)

Machine Learning detection for dropped file

Multi AV Scanner 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:

Download SVG

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/8e5805c72e7234c6b271487e95aeb12a11e65748bfa1af297b5aeee727bebd00/

Threat name:

Script-Macro.Infostealer.Dridex

Status:

Malicious

First seen:

2020-12-03 02:09:00 UTC

AV detection:

18 of 28 (64.29%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=rzmalrzooi2mnmtrjb7jllvrfii6mv2ix6q26kl3llxooj56xuaa._file

Result

Malware family:

n/a

Score:

8/10

Tags:

macro

Link:

https://tria.ge/reports/201203-5memffz776/

Behaviour

Enumerates system info in registry

Modifies Internet Explorer settings

Suspicious behavior: AddClipboardFormatListener

Suspicious use of SetWindowsHookEx

Checks processor information in registry

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Process spawned suspicious child process

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/8e5805c72e7234c6b271487e95aeb12a11e65748bfa1af297b5aeee727bebd00

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

File information

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

Malspam

Dridex

xlsm 8e5805c72e7234c6b271487e95aeb12a11e65748bfa1af297b5aeee727bebd00

(this sample)

Dropped by

Dridex

Delivery method

Distributed via e-mail attachment

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