MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 337ee78277daf4f7c28f4a764d468d4e364a6751d2351cbfd0989b4f95bb275d. 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

SilentBuilder

Vendor detections: 13

Maldoc score: 7

Intelligence 13 IOCs YARA 3 File information Comments 1

SHA256 hash:	337ee78277daf4f7c28f4a764d468d4e364a6751d2351cbfd0989b4f95bb275d
SHA3-384 hash:	362beb23e5a64b0cd69c8d6f9bbe88a0870de8fc31bae786fe488b4395d9176cebbeeadb600a745299c56fcf2606054f
SHA1 hash:	21a5f3a1c38f1242a4bfefcbf9627434fae8cf94
MD5 hash:	7fa1b7176ce69d730a2757f2be698a56
humanhash:	massachusetts-river-autumn-six
File name:	7fa1b7176ce69d730a2757f2be698a56
Download:	download sample
Signature	SilentBuilder Create hunting rule
File size:	129'536 bytes
First seen:	2022-03-28 22:12:44 UTC
Last seen:	Never
File type:	xlsx
MIME type:	application/vnd.ms-excel
ssdeep	3072:LsKpbdrHYrMue8q7QPX+5xtekEdi8/dgR3Syz+nzQIceCRlCN:QKpbdrHYrMue8q7QPX+5xtFEdi8/dgRM
TLSH	T1D2C3AD8BB659486DF921877488DB879A7363FC344FAB47473214F3366EB95A04E0324B
Reporter	zbetcheckin
Tags:	excel SilentBuilder 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: 7

OLE dump

MalwareBazaar was able to identify 3 sections in this file using oledump:

Section ID	Section size	Section name
1	4096 bytes	DocumentSummaryInformation
2	4096 bytes	SummaryInformation
3	119228 bytes	Workbook

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	Auto_Open	Runs when the Excel Workbook is opened
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 macro	XLM macro found. It may contain malicious code

Intelligence

File Origin

# of uploads :

# of downloads :

272

Origin country :

n/a

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

27635435928.xls

Verdict:

No threats detected

Analysis date:

2022-03-29 10:24:35 UTC

Tags:

macros

Link:

https://app.any.run/tasks/79899cf7-46d1-48ed-b0e8-a2b97cdfe6d0

Note:

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

Verdict:

Malicious

File type:

application/vnd.openxmlformats-officedocument.spreadsheetml.sheet

Has a screenshot:

False

Contains macros:

True

Detection:

n/a

Link:

https://www.capesandbox.com/analysis/258798/

Detection(s):

SecuriteInfo.com.Macro.Downlader-14.UNOFFICIAL

TwinWave.EvilDoc.XL4DataopItWasGoodLivingWithYou.20211109.UNOFFICIAL

TwinWave.EvilDoc.DOCXSTRGOOD.AOEX4.BITSNEEDEDFOR.BITSADMIN.EXE.200327.UNOFFICIAL

TwinWave.EvilDoc.DOCXSTRGOOD.AOEX4.BITSNEEDEDFOR.URLDOWNLOADTOFILE.200415.UNOFFICIAL

TwinWave.EvilDoc.Excel4DragoTrainingMontage.20210204.UNOFFICIAL

TwinWave.EvilDoc.XL4MStringFractures.20210921.UNOFFICIAL

TwinWave.EvilDoc.DOCXSTRGOODXL4.HTTP

TwinWave.EvilDoc.DOCXSTRGOODXL4.HTTPS

TwinWave.EvilDoc.XLSLOLBINHammerToFall.20201218.UNOFFICIAL

TwinWave.EvilDoc.XL4QakyFeaturingNothingNowhere.M2.20210611.UNOFFICIAL

TwinWave.EvilDoc.DataOpGodGaveRockNRoll2U.20211215.UNOFFICIAL

Result

Verdict:

Malware

Maliciousness:

Behaviour

Searching for the window

Creating a window

Сreating synchronization primitives

DNS request

Creating a file

Creating a process with a hidden window

Moving a recently created file

Launching a process

Sending a custom TCP request

Sending an HTTP GET request

Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch

Launching a process by exploiting the app vulnerability

Result

Verdict:

Malicious

File Type:

Legacy Excel File

Link:

https://app.docguard.net/337ee78277daf4f7c28f4a764d468d4e364a6751d2351cbfd0989b4f95bb275d/results/dashboard

Document image

Image:

Download PNG

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

coinminer emotet macros macros-on-open regsvr32 regsvr32.exe

Link:

https://www.filescan.io/uploads/624232f01f204239484595c5/reports/bf9ee029-4a9e-44ff-a01e-9e0970c7cebf/overview

Label:

Benign

Suspicious Score:

4.0/10

Score Malicious:

Score Benign:

Link:

https://www.malware.ai/gui/files/?id=1ed950b5-8175-4ebe-a3ae-a4d2d9fff9b4

Result

Verdict:

MALICIOUS

Link:

https://labs.inquest.net/dfi/sha256/337ee78277daf4f7c28f4a764d468d4e364a6751d2351cbfd0989b4f95bb275d

Details

Macro Execution Coercion

Detected a document that appears to social engineer the user into activating embedded logic.

Autostarting Excel Macro Sheet

Excel contains Macrosheet logic that will trigger automatically upon document open.

Result

Threat name:

Hidden Macro 4.0 Emotet

Detection:

malicious

Classification:

troj.expl.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/966241

Signature

Antivirus detection for URL or domain

C2 URLs / IPs found in malware configuration

Document exploit detected (creates forbidden files)

Document exploit detected (drops PE files)

Document exploit detected (process start blacklist hit)

Document exploit detected (UrlDownloadToFile)

Drops PE files to the user root directory

Found Excel 4.0 Macro with suspicious formulas

Found malicious Excel 4.0 Macro

Found malware configuration

Hides that the sample has been downloaded from the Internet (zone.identifier)

Multi AV Scanner detection for domain / URL

Multi AV Scanner detection for dropped file

Multi AV Scanner detection for submitted file

Office process drops PE file

Sigma detected: Microsoft Office Product Spawning Windows Shell

Sigma detected: Regsvr32 Command Line Without DLL

Sigma detected: Regsvr32 Network Activity

System process connects to network (likely due to code injection or exploit)

Yara detected Emotet

Behaviour

Behavior Graph:

Download SVG

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/337ee78277daf4f7c28f4a764d468d4e364a6751d2351cbfd0989b4f95bb275d/

Threat name:

Document-Office.Trojan.Emotet

Status:

Malicious

First seen:

2022-03-28 22:13:07 UTC

File Type:

Document

Extracted files:

AV detection:

16 of 24 (66.67%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=gn7opatx3l2ppqupjj3e2runjy3euz2r2i2rzp6qtcnu7fn3e5oq._file

Result

Malware family:

emotet

Score:

10/10

Tags:

family:emotet botnet:epoch4 banker macro suricata trojan xlm

Link:

https://tria.ge/reports/220328-14259scaak/

Behaviour

Checks processor information in registry

Enumerates system info in registry

Modifies Internet Explorer settings

Modifies registry class

Suspicious behavior: AddClipboardFormatListener

Suspicious behavior: EnumeratesProcesses

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Drops file in System32 directory

Loads dropped DLL

Downloads MZ/PE file

Emotet

Process spawned unexpected child process

suricata: ET MALWARE W32/Emotet CnC Beacon 3

Malware Config

C2 Extraction:

216.120.236.62:8080
189.232.46.161:443
51.91.76.89:8080
217.182.25.250:8080
119.193.124.41:7080
159.8.59.82:8080
195.201.151.129:8080
58.227.42.236:80
212.24.98.99:8080
138.185.72.26:8080
131.100.24.231:80
192.99.251.50:443
158.69.222.101:443
197.242.150.244:8080
50.116.54.215:443
188.44.20.25:443
212.237.17.99:8080
153.126.146.25:7080
103.75.201.2:443
5.9.116.246:8080
185.8.212.130:7080
164.68.99.3:8080
45.118.135.203:7080
107.182.225.142:8080
151.106.112.196:8080
209.126.98.206:8080
79.172.212.216:8080
51.91.7.5:8080
72.15.201.15:8080
196.218.30.83:443
173.212.193.249:8080
82.165.152.127:8080
101.50.0.91:8080
103.43.46.182:443
216.158.226.206:443
167.172.253.162:8080
159.65.88.10:8080
50.30.40.196:8080
129.232.188.93:443
45.176.232.124:443
203.114.109.124:443
167.99.115.35:8080
195.154.133.20:443
51.254.140.238:7080
206.188.212.92:8080
31.24.158.56:8080
178.79.147.66:8080
45.118.115.99:8080
45.142.114.231:8080
185.157.82.211:8080
209.250.246.206:443
189.126.111.200:7080
1.234.21.73:7080
176.104.106.96:8080
201.94.166.162:443
110.232.117.186:8080
146.59.226.45:443
46.55.222.11:443
1.234.2.232:8080
134.122.66.193:8080
176.56.128.118:443

Dropper Extraction:

http://med.devsrm.com/wp-content/gtOOTHi3zkUbn8U6/

Malware family:

Emotet

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/337ee78277da/report/overview.html

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/337ee78277daf4f7c28f4a764d468d4e364a6751d2351cbfd0989b4f95bb275d

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.