MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e6dff9a5f74fff3a95e2dcb48b81b05af5cf5be73823d56c10eee80c8f17c845. 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

Threat unknown

Vendor detections: 6

Maldoc score: 29

Intelligence 6 IOCs YARA 7 File information Comments

SHA256 hash:	e6dff9a5f74fff3a95e2dcb48b81b05af5cf5be73823d56c10eee80c8f17c845
SHA3-384 hash:	351c45cfb14cc5c19f71354b8b6d0baa0a54fffd4a8e756dac05c57abe054343f61ed07185d1dd85e213f06e696ab768
SHA1 hash:	80cb89663d148dd302301e9f66b37d1c3de91a59
MD5 hash:	cb1ae1de9487edd65c2201f1f4a36e3c
humanhash:	blue-zulu-ceiling-avocado
File name:	cb1ae1de_by_Libranalysis
Download:	download sample
File size:	1'517'056 bytes
First seen:	2021-05-05 14:07:03 UTC
Last seen:	2021-05-05 15:17:42 UTC
File type:	docx
MIME type:	application/msword
ssdeep	24576:O/vPHUEykNi6nmBXEYriYjr6GOb87AKEb73nn1PUu0q6sC8sExvuqH:GvPHUkE6aZI063dU9q6mt
TLSH	0965BE303897E85FF1E25F784E9C2BFFAD5A6917BF8092579140A216893A748CF4C834
Reporter	Libranalysis

Libranalysis

Uploaded as part of the sample sharing project

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: 29

Application name is Microsoft Office Word

Office document is in OLE format

Office document contains VBA Macros

OLE dump

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

Section ID	Section size	Section name
1	114 bytes	CompObj
2	4096 bytes	DocumentSummaryInformation
3	4096 bytes	SummaryInformation
4	110630 bytes	1Table
5	963811 bytes	Data
6	403 bytes	Macros/PROJECT
7	65 bytes	Macros/PROJECTwm
8	2057 bytes	Macros/VBA/ThisDocument
9	400161 bytes	Macros/VBA/UMpthHe
10	3463 bytes	Macros/VBA/_VBA_PROJECT
11	567 bytes	Macros/VBA/dir
12	292 bytes	MsoDataStore/5ZXKHCBSHOD2HA==/Item
13	341 bytes	MsoDataStore/5ZXKHCBSHOD2HA==/Properties
14	9272 bytes	WordDocument

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	Document_Open	Runs when the Word or Publisher document is opened
Base64	hemas-microsoft-	aGVtYXMtbWljcm9zb2Z0LWNvbTphc20udjEnIG1hbmlmZ
IOC	DriverUpdateFx.exe	Executable file name
IOC	DriverUpdateCheck.ex	Executable file name
IOC	explorer.exe	Executable file name
IOC	mavinject.exe	Executable file name
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	Run	May run an executable file or a system command
Suspicious	CreateObject	May create an OLE object
Suspicious	GetObject	May get an OLE object with a running instance
Suspicious	Windows	May enumerate application windows (if combined with Shell.Application object)
Suspicious	CreateThread	May inject code into another process
Suspicious	VirtualAlloc	May inject code into another process
Suspicious	VirtualProtect	May inject code into another process Base64)
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 :

189

Origin country :

n/a

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

rheinmetall_job_requirements.doc

Verdict:

Malicious activity

Analysis date:

2021-05-05 13:04:25 UTC

Tags:

macros macros-on-open generated-doc

Link:

https://app.any.run/tasks/3839a84d-bbbf-440f-9b7a-e9d50b342c4a

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.wordprocessingml.document

Has a screenshot:

False

Contains macros:

True

Detection(s):

TwinWave.EvilDoc.DOCXRSTRGOOD.KERNEL32.200608B64.9.UNOFFICIAL

TwinWave.EvilDoc.DOCXRSTRGOOD.HTTPS_.210304B64.2.UNOFFICIAL

TwinWave.EvilDoc.DOCXRSTRGOOD._THIS_PROGRAM.210413B64.5.UNOFFICIAL

Sanesecurity.Badmacro.Doc.blankopen.UNOFFICIAL

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Creating a process with a hidden window

Creating a file

Delayed writing of the file

Deleting a recently created file

Creating a process from a recently created file

Using the Windows Management Instrumentation requests

Replacing files

Changing a file

Running batch commands by exploiting the app vulnerability

Result

Verdict:

Malicious

File Type:

Legacy Word File with Macro

Link:

https://app.docguard.net/e6dff9a5f74fff3a95e2dcb48b81b05af5cf5be73823d56c10eee80c8f17c845/results/dashboard

Document image

Image:

Download PNG

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/e6dff9a5f74fff3a95e2dcb48b81b05af5cf5be73823d56c10eee80c8f17c845/

Threat name:

Win32.Trojan.Minerva

Status:

Malicious

First seen:

2021-05-05 14:07:11 UTC

AV detection:

10 of 43 (23.26%)

Threat level:

5/5

Result

Malware family:

n/a

Score:

10/10

Tags:

macro macro_on_action

Link:

https://tria.ge/reports/210505-e6xpxj58re/

Behaviour

Checks processor information in registry

Enumerates system info in registry

Modifies Internet Explorer settings

NTFS ADS

Suspicious behavior: AddClipboardFormatListener

Suspicious behavior: GetForegroundWindowSpam

Suspicious behavior: RenamesItself

Suspicious use of AdjustPrivilegeToken

Suspicious use of FindShellTrayWindow

Suspicious use of SendNotifyMessage

Suspicious use of SetWindowsHookEx

Suspicious use of UnmapMainImage

Suspicious use of WriteProcessMemory

Office loads VBA resources, possible macro or embedded object present

Drops file in Windows directory

Deletes itself

Loads dropped DLL

Executes dropped EXE

Process spawned unexpected child process

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

Threat name:

DriveBy Activity

Score:

0.90

Link:

https://yomi.yoroi.company/submissions/e6dff9a5f74fff3a95e2dcb48b81b05af5cf5be73823d56c10eee80c8f17c845

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:	apt_Lazarus_Job_Lure_May2021_1 Create hunting rule
Author:	Nils Kuhnert
Description:	Triggers on macro strings used in Lazarus lure.

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:	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:	SUSP_EnableContent_String_Gen Create hunting rule
Author:	Florian Roth
Description:	Detects suspicious string that asks to enable active content in Office Doc
Reference:	Internal Research

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.

No further information available

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