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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 37947ea5d5ccc652354de62356a40eb87ec854e80d64ffb8b26a566a725cf6d4. 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



Threat unknown


Vendor detections: 12


Maldoc score: 4


Intelligence 12 IOCs YARA 1 File information Comments

SHA256 hash: 37947ea5d5ccc652354de62356a40eb87ec854e80d64ffb8b26a566a725cf6d4
SHA3-384 hash: 1e3f88022b5fd6b209a2830ab83de836f48e26a6f00216a13a6a2c33844d7fe2a391568cd96b713f147cf677da274004
SHA1 hash: f5674d3c2de19e152a3d5c845346d05d167d4517
MD5 hash: 808c112dde3ca05689b03c54c9ce96c1
humanhash: william-wolfram-ceiling-uranus
File name:Oct2024TU-580.xls
Download: download sample
File size:867'840 bytes
First seen:2024-10-22 13:27:12 UTC
Last seen:Never
File type:Excel file xls
MIME type:application/vnd.ms-excel
ssdeep 12288:ZmzHJE+CzldQD3DERnLRmF8DZJhuiT3LHAYPVT7TkRFfRdZPl5w2:4czl+bARM89TT37Bx2fzVl6
TLSH T151059DD3AA2E4F25CD850274A6F3476A1724CC83C626472B12F0776879FBAD43946F8D
TrID 46.5% (.XLS) Microsoft Excel sheet (alternate) (56500/1/4)
26.7% (.XLS) Microsoft Excel sheet (32500/1/3)
20.1% (.XLS) Microsoft Excel sheet (alternate) (24500/1/2)
6.5% (.) Generic OLE2 / Multistream Compound (8000/1)
Magika xls
Reporter abuse_ch
Tags: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: 4
OLE dump

MalwareBazaar was able to identify 28 sections in this file using oledump:

Section IDSection sizeSection name
1114 bytesCompObj
2244 bytesDocumentSummaryInformation
3200 bytesSummaryInformation
4114 bytesMBD00E7EDE5/CompObj
5244 bytesMBD00E7EDE5/DocumentSummaryInformation
690976 bytesMBD00E7EDE5/SummaryInformation
720 bytesMBD00E7EDE5/MBD0018D4CE/Ole
84 bytesMBD00E7EDE5/MBD0018D4CE/ObjInfo
9197671 bytesMBD00E7EDE5/MBD0018D4CE/Contents
10114 bytesMBD00E7EDE5/MBD00253C98/CompObj
1118455 bytesMBD00E7EDE5/MBD00253C98/Package
12114 bytesMBD00E7EDE5/MBD00254B5A/CompObj
1322238 bytesMBD00E7EDE5/MBD00254B5A/Package
14114 bytesMBD00E7EDE5/MBD0025715C/CompObj
15484 bytesMBD00E7EDE5/MBD0025715C/DocumentSummaryInformation
1619956 bytesMBD00E7EDE5/MBD0025715C/SummaryInformation
1795624 bytesMBD00E7EDE5/MBD0025715C/Workbook
18170317 bytesMBD00E7EDE5/Workbook
19586 bytesMBD00E7EDE6/Ole
20226272 bytesWorkbook
21527 bytes_VBA_PROJECT_CUR/PROJECT
22104 bytes_VBA_PROJECT_CUR/PROJECTwm
23977 bytes_VBA_PROJECT_CUR/VBA/Sheet1
24977 bytes_VBA_PROJECT_CUR/VBA/Sheet2
25977 bytes_VBA_PROJECT_CUR/VBA/Sheet3
26985 bytes_VBA_PROJECT_CUR/VBA/ThisWorkbook
272644 bytes_VBA_PROJECT_CUR/VBA/_VBA_PROJECT
28553 bytes_VBA_PROJECT_CUR/VBA/dir
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
SuspiciousHex StringsHex-encoded strings were detected, may be used to obfuscate strings (option --decode to see all)

Intelligence


File Origin
# of uploads :
1
# of downloads :
423
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Oct2024TU-580.xls
Verdict:
No threats detected
Analysis date:
2024-10-22 13:44:32 UTC
Tags:
n/a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
96.5%
Tags:
Powershell Exploit Trojan Office
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Using the Windows Management Instrumentation requests
Creating a window
DNS request
Sending an HTTP GET request
Сreating synchronization primitives
Connection attempt by exploiting the app vulnerability
Sending a custom TCP request by exploiting the app vulnerability
Result
Verdict:
Malicious
File Type:
Legacy Excel File with Macro
Payload URLs
URL
File name
https://keraskale.me/b8yVhf?&telephone=fancy&weeder=thoughtful&ladder=diligent&trachoma=erratic&joke=mammoth&clarinet=nondescript&repeat=early&lapdog
Embedded Ole
Behaviour
SuspiciousRTF detected
Document image
Document image
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
macros
Label:
Benign
Suspicious Score:
2.1/10
Score Malicious:
21%
Score Benign:
79%
Result
Threat name:
n/a
Detection:
malicious
Classification:
spyw.expl.evad
Score:
100 / 100
Signature
Contains functionality to detect sleep reduction / modifications
Document exploit detected (process start blacklist hit)
Excel sheet contains many unusual embedded objects
Found direct / indirect Syscall (likely to bypass EDR)
Installs new ROOT certificates
Machine Learning detection for dropped file
Machine Learning detection for sample
Maps a DLL or memory area into another process
Microsoft Office drops suspicious files
Multi AV Scanner detection for dropped file
PowerShell case anomaly found
Powershell drops PE file
Queues an APC in another process (thread injection)
Sigma detected: Dot net compiler compiles file from suspicious location
Sigma detected: File With Uncommon Extension Created By An Office Application
Sigma detected: Files With System Process Name In Unsuspected Locations
Sigma detected: Suspicious Microsoft Office Child Process
Sigma detected: Suspicious MSHTA Child Process
Sigma detected: Suspicious PowerShell Parameter Substring
Sigma detected: System File Execution Location Anomaly
Suricata IDS alerts for network traffic
Suspicious powershell command line found
Switches to a custom stack to bypass stack traces
System process connects to network (likely due to code injection or exploit)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Writes to foreign memory regions
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1539339 Sample: Oct2024TU-580.xls Startdate: 22/10/2024 Architecture: WINDOWS Score: 100 83 www.astrext.info 2->83 103 Suricata IDS alerts for network traffic 2->103 105 Multi AV Scanner detection for dropped file 2->105 107 Excel sheet contains many unusual embedded objects 2->107 109 10 other signatures 2->109 13 EXCEL.EXE 59 33 2->13         started        signatures3 process4 dnsIp5 93 172.245.123.34, 49162, 49164, 49165 AS-COLOCROSSINGUS United States 13->93 95 keraskale.me 188.114.96.3, 443, 49161, 49163 CLOUDFLARENETUS European Union 13->95 79 C:\Users\user\...\Oct2024TU-580.xls (copy), Composite 13->79 dropped 81 seethefirstthingst...stobegoodfro[1].hta, HTML 13->81 dropped 145 Microsoft Office drops suspicious files 13->145 18 mshta.exe 10 13->18         started        22 mshta.exe 10 13->22         started        file6 signatures7 process8 dnsIp9 85 keraskale.me 18->85 111 Suspicious powershell command line found 18->111 113 PowerShell case anomaly found 18->113 24 powershell.exe 24 18->24         started        87 keraskale.me 22->87 28 powershell.exe 22->28         started        signatures10 process11 file12 71 C:\Users\user\AppData\Roaming\wlanext.exe, PE32 24->71 dropped 73 C:\Users\user\AppData\...\wlanext[1].exe, PE32 24->73 dropped 75 C:\Users\user\AppData\...\01ucfthg.cmdline, Unicode 24->75 dropped 119 Powershell drops PE file 24->119 30 wlanext.exe 1 24->30         started        33 powershell.exe 4 24->33         started        35 csc.exe 2 24->35         started        38 wlanext.exe 28->38         started        40 csc.exe 2 28->40         started        42 powershell.exe 28->42         started        signatures13 process14 file15 131 Multi AV Scanner detection for dropped file 30->131 133 Machine Learning detection for dropped file 30->133 135 Writes to foreign memory regions 30->135 141 2 other signatures 30->141 44 svchost.exe 30->44         started        137 Installs new ROOT certificates 33->137 67 C:\Users\user\AppData\Local\...\01ucfthg.dll, PE32 35->67 dropped 47 cvtres.exe 35->47         started        139 Maps a DLL or memory area into another process 38->139 49 svchost.exe 38->49         started        69 C:\Users\user\AppData\Local\...\pk25rgdk.dll, PE32 40->69 dropped 51 cvtres.exe 40->51         started        signatures16 process17 signatures18 129 Maps a DLL or memory area into another process 44->129 53 WfHjfxIMoM.exe 44->53 injected process19 signatures20 115 Maps a DLL or memory area into another process 53->115 117 Found direct / indirect Syscall (likely to bypass EDR) 53->117 56 regsvr32.exe 53->56         started        process21 dnsIp22 89 www.sqlite.org 56->89 91 www.sqlite.org 45.33.6.223, 49172, 80 LINODE-APLinodeLLCUS United States 56->91 77 C:\Users\user\AppData\Local\...\sqlite3.dll, PE32 56->77 dropped 121 System process connects to network (likely due to code injection or exploit) 56->121 123 Tries to steal Mail credentials (via file / registry access) 56->123 125 Tries to harvest and steal browser information (history, passwords, etc) 56->125 127 2 other signatures 56->127 61 WfHjfxIMoM.exe 56->61 injected 65 firefox.exe 56->65         started        file23 signatures24 process25 dnsIp26 97 refs4refs.info 15.197.148.33, 49171, 80 TANDEMUS United States 61->97 99 ghs.googlehosted.com 142.250.186.83, 49173, 49174, 49175 GOOGLEUS United States 61->99 101 4 other IPs or domains 61->101 143 Found direct / indirect Syscall (likely to bypass EDR) 61->143 signatures27
Result
Malware family:
n/a
Score:
  10/10
Tags:
defense_evasion discovery execution
Behaviour
Checks processor information in registry
Enumerates system info in registry
Modifies Internet Explorer settings
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Uses Volume Shadow Copy WMI provider
Uses Volume Shadow Copy service COM API
Enumerates physical storage devices
System Location Discovery: System Language Discovery
AutoIT Executable
Drops file in System32 directory
Suspicious use of SetThreadContext
Executes dropped EXE
Loads dropped DLL
Blocklisted process makes network request
Downloads MZ/PE file
Evasion via Device Credential Deployment
Process spawned unexpected child process
Malware Family:
n/a
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
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:informational_win_ole_protected
Author:Jeff White (karttoon@gmail.com) @noottrak
Description:Identify OLE Project protection within documents.

File information


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

Comments