MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 06be5b0b88d4181b786771109be02a672b37cb79de99869529b8851b535a0319. 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: 11


Maldoc score: 10


Intelligence 11 IOCs YARA File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 06be5b0b88d4181b786771109be02a672b37cb79de99869529b8851b535a0319
SHA3-384 hash: ce848ea6f8a38499ebf78cfa0949cf73f1c4ef1d4d2ea4cc12d2d60450f9c0a14d552c0cec778a1b21fb5846457c3c04
SHA1 hash: 7fb272be6937edc11abeed7d9a13f22b6c33259c
MD5 hash: 2c5f94f9652766ebc795b69e37e56e4b
humanhash: quiet-fix-wyoming-burger
File name:Rech.xls
Download: download sample
Signature SilentBuilder
Create hunting rule
File size:96'786 bytes
First seen:2022-07-04 11:30:43 UTC
Last seen:Never
File type:Excel file xls
MIME type:application/vnd.ms-excel
ssdeep 1536:NFKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgMHuS4hcTO97v7UYdEJmm:3Kpb8rGYrMPe3q7Q0XV5xtezEsi8/dg8
TLSH T110935B45B69ADA5EF521833148E787A67333FC304F6B47472268B3257FB99A04B0721B
TrID 80.2% (.XLS) Microsoft Excel sheet (32500/1/3)
19.7% (.) Generic OLE2 / Multistream Compound (8000/1)
Reporter lowmal3
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: 10
OLE dump

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

Section IDSection sizeSection name
14096 bytesDocumentSummaryInformation
24096 bytesSummaryInformation
386111 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
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 :
1
# of downloads :
253
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.XLM.Trojan.Abracadabra.8.Gen.31874.26657.UNOFFICIAL
Create hunting rule

Sanesecurity.Badmacro.Xls.encdl.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.DOCXSTRGOOD.AOEX4.BITSNEEDEDFOR.URLDOWNLOADTOFILE.200415.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.DOCXSTRGOOD.AOEX4.BITSNEEDEDFOR.SHELLEXECUTE.200416.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.DOCXSTRGOOD.AOEX4.BITSNEEDEDFOR.SHELLEXECUTE.200524.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.Excel4DragoTrainingMontage.20210204.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.XL4MStringFractures.20210921.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.XL4QakyFeaturingNothingNowhere.M2.20210611.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.XL4DataopItWasGoodLivingWithYou.20211109.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.DataOpGodGaveRockNRoll2U.20211215.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.XL4QakyFeaturingNothingNowhere.M2.20220215.UNOFFICIAL
Create hunting rule

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
Launching a process
Moving a recently created file
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/06be5b0b88d4181b786771109be02a672b37cb79de99869529b8851b535a0319/results/dashboard
Payload URLs
URL
File name
bramynapilota.com.pl
WorkBook
Document image
Image:
Download PNG
Document image
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
greyware macros macros-on-open packed regsvr32 shell32.dll
Link:
https://www.filescan.io/uploads/62c2cf796ee6df015bb8cfdf/reports/e530dcac-7b41-4732-b514-33b88c4b096f/overview
Label:
Benign
Suspicious Score:
3.6/10
Score Malicious:
37%
Score Benign:
63%
Link:
https://www.malware.ai/gui/files/?id=c235573a-c4f7-4747-ac65-7518141429bf
Result
Verdict:
MALICIOUS
Link:
https://labs.inquest.net/dfi/sha256/06be5b0b88d4181b786771109be02a672b37cb79de99869529b8851b535a0319
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/1024137
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)
Multi AV Scanner detection for dropped file
Office document tries to convince victim to disable security protection (e.g. to enable ActiveX or Macros)
Office process drops PE file
Snort IDS alert for network traffic
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: 656630 Sample: Rech.xls Startdate: 04/07/2022 Architecture: WINDOWS Score: 100 35 129.232.188.93 xneeloZA South Africa 2->35 37 45.235.8.30 WIKINETTELECOMUNICACOESBR Brazil 2->37 39 59 other IPs or domains 2->39 49 Snort IDS alert for network traffic 2->49 51 Antivirus detection for URL or domain 2->51 53 Multi AV Scanner detection for dropped file 2->53 55 9 other signatures 2->55 8 EXCEL.EXE 33 24 2->8         started        signatures3 process4 dnsIp5 43 www.drcno.sk 109.74.157.127, 49176, 80 VNET-ASSK Slovakia (SLOVAK Republic) 8->43 45 caravanasitsaso.es 82.223.128.138, 49175, 80 ONEANDONE-ASBrauerstrasse48DE Spain 8->45 47 2 other IPs or domains 8->47 27 C:\Users\user\sctm1.ocx, PE32+ 8->27 dropped 29 C:\Users\user\...\t3QaQvIFqYt8HA01YY[1].dll, PE32+ 8->29 dropped 31 C:\Users\user\Desktop\Rech.xls, Composite 8->31 dropped 59 Document exploit detected (creates forbidden files) 8->59 61 Document exploit detected (UrlDownloadToFile) 8->61 13 regsvr32.exe 2 8->13         started        17 regsvr32.exe 8->17         started        19 regsvr32.exe 8->19         started        21 regsvr32.exe 8->21         started        file6 signatures7 process8 file9 33 C:\Windows\System32\...\MePJy.dll (copy), PE32+ 13->33 dropped 63 Hides that the sample has been downloaded from the Internet (zone.identifier) 13->63 23 regsvr32.exe 2 13->23         started        signatures10 process11 dnsIp12 41 104.168.155.143, 49177, 8080 HOSTWINDSUS United States 23->41 57 System process connects to network (likely due to code injection or exploit) 23->57 signatures13
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/06be5b0b88d4181b786771109be02a672b37cb79de99869529b8851b535a0319/
Threat name:
Document-Excel.Trojan.Abracadabra
Create hunting rule
Status:
Malicious
First seen:
2022-07-04 11:31:08 UTC
File Type:
Document
Extracted files:
12
AV detection:
18 of 26 (69.23%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=a27fwc4i2qmbw6dhoeijxybkm4vtps3z32mynfjjxccrwu22ammq._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/220704-nmpsdsahg3/
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:
82.223.21.224:8080
173.212.193.249:8080
82.165.152.127:8080
151.106.112.196:8080
160.16.142.56:8080
163.44.196.120:8080
103.70.28.102:8080
164.68.99.3:8080
51.161.73.194:443
146.59.226.45:443
104.168.155.143:8080
101.50.0.91:8080
94.23.45.86:4143
167.172.253.162:8080
5.9.116.246:8080
185.4.135.165:8080
159.65.140.115:443
212.24.98.99:8080
209.97.163.214:443
206.189.28.199:8080
135.148.6.80:443
159.65.88.10:8080
79.137.35.198:8080
172.105.226.75:8080
172.104.251.154:8080
115.68.227.76:8080
201.94.166.162:443
144.91.78.55:443
183.111.227.137:8080
45.176.232.124:443
209.126.98.206:8080
72.15.201.15:8080
197.242.150.244:8080
51.254.140.238:7080
45.235.8.30:8080
103.75.201.2:443
207.148.79.14:8080
213.239.212.5:443
110.232.117.186:8080
153.126.146.25:7080
188.44.20.25:443
45.55.191.130:443
134.122.66.193:8080
131.100.24.231:80
186.194.240.217:443
64.227.100.222:8080
51.91.76.89:8080
159.89.202.34:443
149.56.131.28:8080
196.218.30.83:443
103.43.75.120:443
213.241.20.155:443
91.207.28.33:8080
129.232.188.93:443
119.193.124.41:7080
45.118.115.99:8080
158.69.222.101:443
150.95.66.124:8080
37.187.115.122:8080
107.170.39.149:8080
103.132.242.26:8080
1.234.2.232:8080
139.59.126.41:443
Dropper Extraction:
http://camcha.cl/wp-admin/uaGdFOaYvx9p0sHuur/
http://bramynapilota.com.pl/wp-admin/xCZp8SgBtmxELi/
http://caravanasitsaso.es/wp-content/dYbHrCM41ZJ9/
http://www.drcno.sk/_sub/kweb8e/
Malware family:
Emotet
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/06be5b0b88d4/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.

File information

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

Malspam

SilentBuilder

Excel file xls 06be5b0b88d4181b786771109be02a672b37cb79de99869529b8851b535a0319

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments