MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6dd691de8fde45048114ef90b481ca7160fe39ab182e727b073f3fda3e2f3259. 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: 9

Maldoc score: 37

Intelligence 9 IOCs YARA 7 File information Comments

SHA256 hash:	6dd691de8fde45048114ef90b481ca7160fe39ab182e727b073f3fda3e2f3259
SHA3-384 hash:	a7692cf738fce1416bdb361203b916a4c51a23764a54c7812c17b7ae0608121e1807b14bfa0f2b23899a22357c499447
SHA1 hash:	c12b752ff9b700aac82b11242c53db061b1f0303
MD5 hash:	4bc306fa5912af1812d9232b6f1c540e
humanhash:	two-indigo-diet-oregon
File name:	SecuriteInfo.com.VB.Heur.EmoDldr.32.DB37E181.Gen.3346.8842
Download:	download sample
Signature	Dridex Create hunting rule
File size:	741'376 bytes
First seen:	2021-01-20 23:57:53 UTC
Last seen:	2021-01-21 00:52:13 UTC
File type:	xlsx
MIME type:	application/vnd.ms-excel
ssdeep	6144:Wk3hOdsylKlgryzc4bNhZF+E+W2knA5JIz9BnkYS3jdLFZqA1k8:AI/k5FFIAX
TLSH	B5F40D967745C9F2D616DA721C6EC6E42327BC04EE8A53C738947B2EBE79EB04CC1181
Reporter	SecuriteInfoCom
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: 37

Application name is Microsoft Excel

Office document is in OLE format

Office document contains VBA Macros

OLE dump

MalwareBazaar was able to identify 62 sections in this file using oledump:

Section ID	Section size	Section name
1	107 bytes	CompObj
2	244 bytes	DocumentSummaryInformation
3	224 bytes	SummaryInformation
4	577238 bytes	Workbook
5	97 bytes	_VBA_PROJECT_CUR/LEaP_5DT6_JVK_mDJ/CompObj
6	299 bytes	_VBA_PROJECT_CUR/LEaP_5DT6_JVK_mDJ/VBFrame
7	98 bytes	_VBA_PROJECT_CUR/LEaP_5DT6_JVK_mDJ/f
8	4400 bytes	_VBA_PROJECT_CUR/LEaP_5DT6_JVK_mDJ/o
9	1143 bytes	_VBA_PROJECT_CUR/PROJECT
10	551 bytes	_VBA_PROJECT_CUR/PROJECTwm
11	1968 bytes	_VBA_PROJECT_CUR/VBA/FPLA_K1V
12	5224 bytes	_VBA_PROJECT_CUR/VBA/LEaP_5DT6_JVK_mDJ
13	1689 bytes	_VBA_PROJECT_CUR/VBA/NUx4xpAJ
14	15066 bytes	_VBA_PROJECT_CUR/VBA/O6mqeyjl68S3W8d8
15	5892 bytes	_VBA_PROJECT_CUR/VBA/Qscv7kPI6Kh
16	1007 bytes	_VBA_PROJECT_CUR/VBA/Sheet1
17	2211 bytes	_VBA_PROJECT_CUR/VBA/ThisWorkbook
18	6699 bytes	_VBA_PROJECT_CUR/VBA/Vq8QYONNws8I0B7
19	7301 bytes	_VBA_PROJECT_CUR/VBA/Z3gpqFqnZnTzjFxH
20	5629 bytes	_VBA_PROJECT_CUR/VBA/ZZPrn_sF9_3T66_woqw
21	19514 bytes	_VBA_PROJECT_CUR/VBA/_VBA_PROJECT
22	12106 bytes	_VBA_PROJECT_CUR/VBA/__SRP_0
23	1101 bytes	_VBA_PROJECT_CUR/VBA/__SRP_1
24	2492 bytes	_VBA_PROJECT_CUR/VBA/__SRP_10
25	156 bytes	_VBA_PROJECT_CUR/VBA/__SRP_11
26	2999 bytes	_VBA_PROJECT_CUR/VBA/__SRP_12
27	198 bytes	_VBA_PROJECT_CUR/VBA/__SRP_13
28	1022 bytes	_VBA_PROJECT_CUR/VBA/__SRP_14
29	156 bytes	_VBA_PROJECT_CUR/VBA/__SRP_15
30	2622 bytes	_VBA_PROJECT_CUR/VBA/__SRP_16
31	254 bytes	_VBA_PROJECT_CUR/VBA/__SRP_17
32	2943 bytes	_VBA_PROJECT_CUR/VBA/__SRP_18
33	240 bytes	_VBA_PROJECT_CUR/VBA/__SRP_19
34	3560 bytes	_VBA_PROJECT_CUR/VBA/__SRP_1a
35	180 bytes	_VBA_PROJECT_CUR/VBA/__SRP_1b
36	5412 bytes	_VBA_PROJECT_CUR/VBA/__SRP_2
37	448 bytes	_VBA_PROJECT_CUR/VBA/__SRP_3
38	1000 bytes	_VBA_PROJECT_CUR/VBA/__SRP_4
39	156 bytes	_VBA_PROJECT_CUR/VBA/__SRP_5
40	608 bytes	_VBA_PROJECT_CUR/VBA/__SRP_6
41	156 bytes	_VBA_PROJECT_CUR/VBA/__SRP_7
42	584 bytes	_VBA_PROJECT_CUR/VBA/__SRP_8
43	156 bytes	_VBA_PROJECT_CUR/VBA/__SRP_9
44	797 bytes	_VBA_PROJECT_CUR/VBA/__SRP_a
45	170 bytes	_VBA_PROJECT_CUR/VBA/__SRP_b
46	2987 bytes	_VBA_PROJECT_CUR/VBA/__SRP_c
47	170 bytes	_VBA_PROJECT_CUR/VBA/__SRP_d
48	1677 bytes	_VBA_PROJECT_CUR/VBA/__SRP_e
49	170 bytes	_VBA_PROJECT_CUR/VBA/__SRP_f
50	6587 bytes	_VBA_PROJECT_CUR/VBA/a0JL_kQb0
51	1562 bytes	_VBA_PROJECT_CUR/VBA/dir
52	3633 bytes	_VBA_PROJECT_CUR/VBA/lkFYbnoa5fv10Ug
53	2151 bytes	_VBA_PROJECT_CUR/VBA/nfCH4x71
54	2498 bytes	_VBA_PROJECT_CUR/VBA/oWIyE_JXe
55	97 bytes	_VBA_PROJECT_CUR/Vq8QYONNws8I0B7/CompObj
56	271 bytes	_VBA_PROJECT_CUR/Vq8QYONNws8I0B7/VBFrame
57	38 bytes	_VBA_PROJECT_CUR/Vq8QYONNws8I0B7/f
58	0 bytes	_VBA_PROJECT_CUR/Vq8QYONNws8I0B7/o
59	97 bytes	_VBA_PROJECT_CUR/Z3gpqFqnZnTzjFxH/CompObj
60	272 bytes	_VBA_PROJECT_CUR/Z3gpqFqnZnTzjFxH/VBFrame
61	38 bytes	_VBA_PROJECT_CUR/Z3gpqFqnZnTzjFxH/f
62	0 bytes	_VBA_PROJECT_CUR/Z3gpqFqnZnTzjFxH/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	Workbook_Open	Runs when the Excel Workbook is opened
Hex String	fffffg	666666666667
Hex String	v66666	763636363636
Hex String	HqyHqy	487179487179 code and P-code are different, this may have been used to hide malicious code
IOC	user32.dll	Executable file name
Suspicious	Environ	May read system environment variables
Suspicious	Open	May open a file
Suspicious	write	May write to a file (if combined with Open)
Suspicious	Put	May write to a file (if combined with Open)
Suspicious	Binary	May read or write a binary file (if combined with Open)
Suspicious	savetofile	May create a text file
Suspicious	run	May run an executable file or a system command
Suspicious	Create	May execute file or a system command through WMI
Suspicious	ShowWindow	May hide the application
Suspicious	GetObject	May get an OLE object with a running instance
Suspicious	Windows	May enumerate application windows (if combined with Shell.Application object)
Suspicious	Lib	May run code from a DLL
Suspicious	Chr	May attempt to obfuscate specific strings (use option --deobf to deobfuscate)
Suspicious	ChrW	May attempt to obfuscate specific strings (use option --deobf to deobfuscate)
Suspicious	Xor	May attempt to obfuscate specific strings (use option --deobf to deobfuscate)
Suspicious	system	May run an executable file or a system command on a Mac (if combined with libc.dylib)
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 :

152

Origin country :

n/a

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

SecuriteInfo.com.VB.Heur.EmoDldr.32.DB37E181.Gen.3346.8842

Verdict:

Malicious activity

Analysis date:

2021-01-21 00:01:07 UTC

Tags:

macros macros-on-open loader

Link:

https://app.any.run/tasks/f5c51a7e-88e1-4b64-b436-296fe979f059

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(s):

TwinWave.EvilDoc.WelcomeBackEmotetThatsWhyTheyCallItWindowPain.2020717.UNOFFICIAL

TwinWave.EvilDoc.FuncProcessAGoGo.20200805.UNOFFICIAL

TwinWave.EvilDoc.WithGObjComingBackToLife.20201124.UNOFFICIAL

SecuriteInfo.com.VB.Heur.EmoDldr.32.DB37E181.Gen.3346.8842.UNOFFICIAL

Result

Verdict:

Suspicious

Maliciousness:

Behaviour

Creating a window

Using the Windows Management Instrumentation requests

Creating a file in the %AppData% directory

Searching for the window

Launching a process

Creating a process with a hidden window

Searching for many windows

Result

Verdict:

MALICIOUS

Details

Macro with Startup Hook

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

Macro with DLL Reference

Detected macro logic that will load additional functionality from Dynamically Linked Libraries (DLLs). While not explicitly malicious, this is a common tactic for accessing APIs that are not otherwised exposed via Visual Basic for Applications (VBA).

Result

Threat name:

Unknown

Detection:

malicious

Classification:

expl.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/586781

Signature

Antivirus detection for URL or domain

Creates processes via WMI

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 contains an embedded VBA with many randomly named variables

Document contains VBA stomped code (only p-code) potentially bypassing AV detection

Machine Learning detection for dropped file

Machine Learning detection for sample

Multi AV Scanner detection for submitted file

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/6dd691de8fde45048114ef90b481ca7160fe39ab182e727b073f3fda3e2f3259/

Threat name:

Document-Word.Trojan.Sadoca

Status:

Malicious

First seen:

2021-01-20 23:11:52 UTC

AV detection:

15 of 45 (33.33%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=nxljdxup3zcqjaiu56iljaokofqp4onldaxhe6yhh475uprpgjmq._file

Result

Malware family:

dridex

Score:

10/10

Tags:

family:dridex botnet discovery evasion loader macro macro_on_action ransomware trojan

Link:

https://tria.ge/reports/210120-fb3np2mtyj/

Behaviour

Suspicious use of FindShellTrayWindow

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Checks processor information in registry

Enumerates system info in registry

Modifies Internet Explorer settings

Modifies registry class

Suspicious behavior: AddClipboardFormatListener

Suspicious use of AdjustPrivilegeToken

Office loads VBA resources, possible macro or embedded object present

Enumerates physical storage devices

Checks installed software on the system

Checks whether UAC is enabled

JavaScript code in executable

Loads dropped DLL

Blocklisted process makes network request

Dridex Loader

Dridex

Process spawned unexpected child process

Malware Config

C2 Extraction:

77.220.64.40:443
8.4.9.152:3786
185.246.87.202:3098

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

Threat name:

Dridex

Score:

1.00

Link:

https://yomi.yoroi.company/submissions/6dd691de8fde45048114ef90b481ca7160fe39ab182e727b073f3fda3e2f3259

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:	DridexV4 Create hunting rule
Author:	kevoreilly
Description:	Dridex v4 Payload

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:	UAC_bypass_bin_mem Create hunting rule
Author:	James_inthe_box
Description:	UAC bypass in files like avemaria

Rule name:	win_dridex_auto Create hunting rule
Author:	Felix Bilstein - yara-signator at cocacoding dot com
Description:	autogenerated rule brought to you by yara-signator

File information

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

Web download

Dridex

xlsx 6dd691de8fde45048114ef90b481ca7160fe39ab182e727b073f3fda3e2f3259

(this sample)

URLhaus

https://urlhaus.abuse.ch/url/972703/

Delivery method

Distributed via web download

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