MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 9d89baddbcdadef7e35bf25b5705eae33e688f87f0f311f1da9ff7002effc8bf. 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 4 File information Comments

SHA256 hash: 9d89baddbcdadef7e35bf25b5705eae33e688f87f0f311f1da9ff7002effc8bf
SHA3-384 hash: 2e9773fd8484c08e1982847f78abffb18637d26aabf33a0573ff81db7c63b8cd45c48ed2468d5e2f88041f626e31852f
SHA1 hash: 45d78dab6c59f6fb3e290b19418d72c9906f7607
MD5 hash: 21239027f2f5c7635b064fb0b3ba25e9
humanhash: eighteen-florida-rugby-berlin
File name:Mail-550898030336.xls
Download: download sample
Signature SilentBuilder
File size:78'154 bytes
First seen:2022-01-28 16:03:02 UTC
Last seen:Never
File type:Excel file xls
MIME type:application/vnd.ms-excel
ssdeep 1536:xY+nBqmIk3hbdlylKsgqopeJBWhZFGkE+cMLxAAIiQ5gQ72IotO6nitSUPU+8:xY+nBqmIk3hbdlylKsgqopeJBWhZFGkZ
TLSH T12E734AE763CB8C89EF65033E8DB346146367FC629BA343476245B726ADB16C04D03667
Reporter TeamDreier
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: 7
OLE dump

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

Section IDSection sizeSection name
14096 bytesDocumentSummaryInformation
24096 bytesSummaryInformation
367009 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
AutoExecAuto_OpenRuns when the Excel Workbook is opened
IOC91.240.118.168IPv4 address
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 :
109
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Mail-550898030336.xls
Verdict:
Malicious activity
Analysis date:
2022-01-29 02:38:06 UTC
Tags:
macros macros40 emotet-doc emotet loader trojan

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
File type:
application/vnd.ms-excel
Has a screenshot:
False
Contains macros:
True
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
DNS request
Creating a window
Сreating synchronization primitives
Creating a process with a hidden window
Launching a process
Running batch commands by exploiting the app vulnerability
Sending an HTTP GET request to an infection source
Result
Verdict:
Malicious
File Type:
Legacy Excel File
Payload URLs
URL
File name
http://91.240.118.168/qqw/aas/se.html
Macro1
Document image
Document image
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
cmd cmd.exe macros macros-on-open mshta mshta.exe print.exe stripped
Label:
Malicious
Suspicious Score:
5.7/10
Score Malicious:
58%
Score Benign:
42%
Result
Verdict:
MALICIOUS
Details
Excel 4.0 Macro
Document contains Excel 4.0 macros (XLM). A valid, albeit dated feature, this document should be treated with suspicion.
IPv4 Dotted Quad URL
A URL was detected referencing a direct IP address, as opposed to a domain name.
Macro Execution Coercion
Detected a document that appears to social engineer the user into activating embedded logic.
MSHTA Pivot
Macro may contain a pivot to an external URL resource via MSHTA.
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
Signature
Antivirus detection for URL or domain
Document contains OLE streams with names of living off the land binaries
Document exploit detected (process start blacklist hit)
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)
Machine Learning detection for dropped file
Office document tries to convince victim to disable security protection (e.g. to enable ActiveX or Macros)
Powershell drops PE file
Sigma detected: Microsoft Office Product Spawning Windows Shell
Sigma detected: MSHTA Spawning Windows Shell
Sigma detected: Suspicious MSHTA Process Patterns
Sigma detected: Suspicious PowerShell Command Line
Sigma detected: Windows Shell File Write to Suspicious Folder
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Yara detected Emotet
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 561489 Sample: Fichier-27012022.xls Startdate: 27/01/2022 Architecture: WINDOWS Score: 100 56 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->56 58 Antivirus detection for URL or domain 2->58 60 Found malicious Excel 4.0 Macro 2->60 62 12 other signatures 2->62 14 EXCEL.EXE 53 12 2->14         started        process3 file4 44 C:\Users\user\Desktop\Fichier-27012022.xls, Composite 14->44 dropped 17 cmd.exe 14->17         started        process5 process6 19 mshta.exe 11 17->19         started        dnsIp7 48 91.240.118.168, 49167, 49168, 80 GLOBALLAYERNL unknown 19->48 22 powershell.exe 12 7 19->22         started        process8 dnsIp9 50 jeffreylubin.igclout.com 74.208.236.157, 49170, 80 ONEANDONE-ASBrauerstrasse48DE United States 22->50 52 kuyporn.com 172.67.149.209, 49169, 80 CLOUDFLARENETUS United States 22->52 42 C:\ProgramData\QWER.dll, PE32 22->42 dropped 66 Powershell drops PE file 22->66 27 cmd.exe 22->27         started        file10 signatures11 process12 process13 29 rundll32.exe 27->29         started        process14 31 rundll32.exe 1 29->31         started        file15 46 C:\Windows\...\geigffgnaykha.ysi (copy), PE32 31->46 dropped 54 Hides that the sample has been downloaded from the Internet (zone.identifier) 31->54 35 rundll32.exe 31->35         started        signatures16 process17 process18 37 rundll32.exe 1 35->37         started        signatures19 64 Hides that the sample has been downloaded from the Internet (zone.identifier) 37->64 40 rundll32.exe 37->40         started        process20
Threat name:
Document-Excel.Trojan.Emotet
Status:
Malicious
First seen:
2022-01-28 13:30:39 UTC
File Type:
Document
Extracted files:
8
AV detection:
14 of 43 (32.56%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:emotet botnet:epoch5 banker macro suricata trojan xlm
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 AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Drops file in System32 directory
Loads dropped DLL
Blocklisted process makes network request
Downloads MZ/PE file
Emotet
Process spawned unexpected child process
suricata: ET MALWARE W32/Emotet CnC Beacon 3
Malware Config
C2 Extraction:
74.207.230.120:8080
139.196.72.155:8080
37.44.244.177:8080
37.59.209.141:8080
116.124.128.206:8080
217.182.143.207:443
54.37.228.122:443
203.153.216.46:443
168.197.250.14:80
207.148.81.119:8080
195.154.146.35:443
78.46.73.125:443
191.252.103.16:80
210.57.209.142:8080
185.168.130.138:443
142.4.219.173:8080
118.98.72.86:443
78.47.204.80:443
159.69.237.188:443
190.90.233.66:443
104.131.62.48:8080
62.171.178.147:8080
185.148.168.15:8080
54.38.242.185:443
198.199.98.78:8080
194.9.172.107:8080
85.214.67.203:8080
66.42.57.149:443
185.148.168.220:8080
103.41.204.169:8080
128.199.192.135:8080
195.77.239.39:8080
59.148.253.194:443
Dropper Extraction:
http://91.240.118.168/qqw/aas/se.html
http://91.240.118.168/qqw/aas/se.png
Please note that we are no longer able to provide a coverage score for Virus Total.

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:Excel_Hidden_Macro_Sheet
Rule name:INDICATOR_OLE_Excel4Macros_DL2
Author:ditekSHen
Description:Detects OLE Excel 4 Macros documents acting as downloaders
Rule name:Qbot
Author:Dhanunjaya
Description:Yara Rule to Detect Qbot
Rule name:SUSP_Excel4Macro_AutoOpen
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.

Malspam

SilentBuilder

Excel file xls 9d89baddbcdadef7e35bf25b5705eae33e688f87f0f311f1da9ff7002effc8bf

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments