MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 920ea22048f1f86c3fd0ee220e80f23c40cd6f267a3f01ca8f7ddc0aa1e60ddb. 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: 12


Intelligence 13 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 920ea22048f1f86c3fd0ee220e80f23c40cd6f267a3f01ca8f7ddc0aa1e60ddb
SHA3-384 hash: bc99436709560fde2b34373792dfb7cc6a6570427e18469b3da93b53bf4eaa29eca6814c780fa867cdb5197020db574a
SHA1 hash: 0da659f196bf3feca43c1df599a6cf6286087d15
MD5 hash: ebd735180e89f67e8242f1c9384659db
humanhash: diet-india-florida-quebec
File name:Mes_RC6557241048ZZ.xls
Download: download sample
Signature SilentBuilder
Create hunting rule
File size:90'624 bytes
First seen:2022-06-29 10:10:52 UTC
Last seen:2022-06-29 10:43:47 UTC
File type:Excel file xls
MIME type:application/vnd.ms-excel
ssdeep 1536:1AKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgjHuS4lcTO9Tv7UYdEJix:uKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgw
TLSH T132935A45B65ADA1EF625873148E747AA7333FC304F6B07472268B3257FB99A04B0721B
TrID 80.2% (.XLS) Microsoft Excel sheet (32500/1/3)
19.7% (.) Generic OLE2 / Multistream Compound (8000/1)
Reporter madjack_red
Tags:SilentBuilder xls

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: 12
OLE dump

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

Section IDSection sizeSection name
14096 bytesDocumentSummaryInformation
24096 bytesSummaryInformation
379940 bytesWorkbook
OLE vba

MalwareBazaar was able to extract and deobfuscate VBA script(s) the following information from OLE objects embedded in this file using olevba:

TypeKeywordDescription
Hex StringSegWT5365675754
SuspiciousWindowsMay enumerate application windows (if combined with Shell.Application object)
SuspiciousURLDownloadToFileAMay download files from the Internet
SuspiciousFORMULA.FILLMay modify Excel 4 Macro formulas at runtime
SuspiciousEXECMay run an executable file or a system
SuspiciousHex StringsHex-encoded strings were detected, may be used to obfuscate strings (option --decode to see all)
SuspiciousXLM macroXLM macro found. It may contain malicious code

Intelligence

File Origin
# of uploads :
2
# of downloads :
242
Origin country :
n/a
Vendor Threat Intelligence
Verdict:
Malicious
File type:
application/vnd.ms-excel
Has a screenshot:
False
Contains macros:
True
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/284209/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Сreating synchronization primitives
DNS request
Creating a process with a hidden window
Sending an HTTP GET request
Sending a custom TCP request by exploiting the app vulnerability
Launching a process by exploiting the app vulnerability
Result
Verdict:
Malicious
File Type:
Legacy Excel File
Link:
https://app.docguard.net/920ea22048f1f86c3fd0ee220e80f23c40cd6f267a3f01ca8f7ddc0aa1e60ddb/results/dashboard
Payload URLs
URL
File name
www.centurypapers.com
WorkBook
Document image
Image:
Download PNG
Document image
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
greyware macros macros-on-open packed regsvr32
Link:
https://www.filescan.io/uploads/62bc2576a17f249ae3e5b88a/reports/43ebee1f-3a5f-4bdc-b38e-4247533569cc/overview
Label:
Benign
Suspicious Score:
3.4/10
Score Malicious:
34%
Score Benign:
66%
Link:
https://www.malware.ai/gui/files/?id=b4cd348b-8f19-422c-a33a-c206413a5b55
Result
Verdict:
MALICIOUS
Link:
https://labs.inquest.net/dfi/sha256/920ea22048f1f86c3fd0ee220e80f23c40cd6f267a3f01ca8f7ddc0aa1e60ddb
Details
Autostarting Excel Macro Sheet
Excel contains Macrosheet logic that will trigger automatically upon document open.
Result
Threat name:
Hidden Macro 4.0, Emotet
Create hunting rule
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1021799
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
Hides that the sample has been downloaded from the Internet (zone.identifier)
Office document tries to convince victim to disable security protection (e.g. to enable ActiveX or Macros)
Office process drops PE file
System process connects to network (likely due to code injection or exploit)
Yara detected Emotet
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 654299 Sample: Mes_RC6557241048ZZ.xls Startdate: 29/06/2022 Architecture: WINDOWS Score: 100 43 129.232.188.93 xneeloZA South Africa 2->43 45 45.235.8.30 WIKINETTELECOMUNICACOESBR Brazil 2->45 47 60 other IPs or domains 2->47 59 Antivirus detection for URL or domain 2->59 61 Found malicious Excel 4.0 Macro 2->61 63 Document exploit detected (drops PE files) 2->63 65 7 other signatures 2->65 8 EXCEL.EXE 7 23 2->8         started        13 svchost.exe 2->13         started        signatures3 process4 dnsIp5 49 charmslovespells.com 129.232.138.114, 443, 49174, 49175 xneeloZA South Africa 8->49 51 cesasin.com.ar 179.43.117.122, 49177, 80 DattateccomAR Argentina 8->51 53 3 other IPs or domains 8->53 31 C:\Users\user\phdg4.ocx, PE32+ 8->31 dropped 33 C:\Users\user\phdg3.ocx, PE32+ 8->33 dropped 35 C:\Users\user\...\zYHs8yTNjKJe30CS[1].dll, PE32+ 8->35 dropped 37 2 other malicious files 8->37 dropped 69 Document exploit detected (creates forbidden files) 8->69 71 Document exploit detected (UrlDownloadToFile) 8->71 15 regsvr32.exe 2 8->15         started        19 regsvr32.exe 2 8->19         started        21 regsvr32.exe 8->21         started        23 regsvr32.exe 8->23         started        file6 signatures7 process8 file9 39 C:\Windows\System32\...\XonvaVHB.dll (copy), PE32+ 15->39 dropped 57 Hides that the sample has been downloaded from the Internet (zone.identifier) 15->57 25 regsvr32.exe 15->25         started        41 C:\Windows\System32\...\QXWQWOyzq.dll (copy), PE32+ 19->41 dropped 28 regsvr32.exe 19->28         started        signatures10 process11 dnsIp12 67 System process connects to network (likely due to code injection or exploit) 25->67 55 45.55.191.130, 443, 49178, 49179 DIGITALOCEAN-ASNUS United States 28->55 signatures13
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/920ea22048f1f86c3fd0ee220e80f23c40cd6f267a3f01ca8f7ddc0aa1e60ddb/
Threat name:
Document-Excel.Trojan.Abracadabra
Create hunting rule
Status:
Malicious
First seen:
2022-06-29 10:11:06 UTC
File Type:
Document
Extracted files:
10
AV detection:
13 of 40 (32.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=sihkeici6h4gyp6q5yra5ahshram23zgpi7qdsuppxoavipgbxnq._file
Result
Malware family:
emotet
Create hunting rule
Score:
  10/10
Tags:
family:emotet botnet:epoch4 banker macro suricata trojan xlm
Link:
https://tria.ge/reports/220629-l7xmmaada3/
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
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:
172.104.251.154:8080
51.161.73.194:443
101.50.0.91:8080
91.207.28.33:8080
119.193.124.41:7080
150.95.66.124:8080
103.132.242.26:8080
37.187.115.122:8080
172.105.226.75:8080
131.100.24.231:80
196.218.30.83:443
79.137.35.198:8080
103.75.201.2:443
82.223.21.224:8080
153.126.146.25:7080
146.59.226.45:443
209.97.163.214:443
186.194.240.217:443
197.242.150.244:8080
45.118.115.99:8080
201.94.166.162:443
159.65.88.10:8080
213.239.212.5:443
167.172.253.162:8080
183.111.227.137:8080
207.148.79.14:8080
188.44.20.25:443
185.4.135.165:8080
82.165.152.127:8080
64.227.100.222:8080
163.44.196.120:8080
173.212.193.249:8080
115.68.227.76:8080
107.170.39.149:8080
72.15.201.15:8080
51.254.140.238:7080
206.189.28.199:8080
45.176.232.124:443
144.91.78.55:443
159.65.140.115:443
160.16.142.56:8080
135.148.6.80:443
51.91.76.89:8080
103.43.75.120:443
46.55.222.11:443
94.23.45.86:4143
149.56.131.28:8080
213.241.20.155:443
164.68.99.3:8080
209.126.98.206:8080
129.232.188.93:443
45.55.191.130:443
103.70.28.102:8080
5.9.116.246:8080
139.59.126.41:443
151.106.112.196:8080
134.122.66.193:8080
212.24.98.99:8080
110.232.117.186:8080
1.234.2.232:8080
45.235.8.30:8080
158.69.222.101:443
159.89.202.34:443
Dropper Extraction:
https://www.centurypapers.com/classes/jNaLifXh9jHzIb/
http://charmslovespells.com/yt-assets/ouRMgGG/
http://chaledooleo.com.br/headers/q7JUE0LzZJQsCQ/
http://www.cesasin.com.ar/administrator/U12P8KYU/
Malware family:
Emotet
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/920ea22048f1/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/920ea22048f1f86c3fd0ee220e80f23c40cd6f267a3f01ca8f7ddc0aa1e60ddb

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:Qbot
Create hunting rule
Author:Dhanunjaya
Description:Yara Rule to Detect Qbot
Rule name:SUSP_Excel4Macro_AutoOpen
Create hunting rule
Author:John Lambert @JohnLaTwC
Description:Detects Excel4 macro use with auto open / close

File information

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

Cape
Cape
https://www.capesandbox.com/analysis/284209/

Comments