MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b3fe4fd7f741756b5632607a83a4269984b1059f7b60550bafd87482d638b968. 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: 10


Maldoc score: 23


Intelligence 10 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b3fe4fd7f741756b5632607a83a4269984b1059f7b60550bafd87482d638b968
SHA3-384 hash: 52cb61ed5fe975dd270c6c2cb2b447e54ae9cfd1c18a81fd52e750419e11d26d6f6923ff6ba4e164706f2ab05f19ae96
SHA1 hash: 3c39d93c019e724a78bc5586b06e48b8ee40d78e
MD5 hash: 2a8fc05d9cd4d4069c4c42f3b3096a9b
humanhash: louisiana-undress-vegan-sad
File name:DHLAWB50.xls
Download: download sample
File size:315'392 bytes
First seen:2022-06-23 05:58:30 UTC
Last seen:2022-06-27 07:03:36 UTC
File type:Excel file xls
MIME type:application/vnd.ms-excel
ssdeep 6144:NxEtjPOtioVjDGUU1qfDlavx+W2QnAy+6VJ0xtr4DSp9wJ+g1hS53k/MezqZzHNx:t1r4DSp+gg254zq9N0wUwlVvWtpX
TLSH T149640255B665F507DA897BB68CFE80E76722FC451FA3430B3288B31E3E73E908852112
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)
Reporter abuse_ch
Tags:DHL 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: 23
OLE dump

MalwareBazaar was able to identify 20 sections in this file using oledump:

Section IDSection sizeSection name
1107 bytesCompObj
2256 bytesDocumentSummaryInformation
3208 bytesSummaryInformation
4286101 bytesWorkbook
5616 bytes_VBA_PROJECT_CUR/PROJECT
6149 bytes_VBA_PROJECT_CUR/PROJECTwm
7960 bytes_VBA_PROJECT_CUR/VBA/Module1
8985 bytes_VBA_PROJECT_CUR/VBA/Sheet1
9985 bytes_VBA_PROJECT_CUR/VBA/Sheet2
10985 bytes_VBA_PROJECT_CUR/VBA/Sheet3
11985 bytes_VBA_PROJECT_CUR/VBA/Sheet4
126436 bytes_VBA_PROJECT_CUR/VBA/ThisWorkbook
134677 bytes_VBA_PROJECT_CUR/VBA/_VBA_PROJECT
141533 bytes_VBA_PROJECT_CUR/VBA/__SRP_0
15227 bytes_VBA_PROJECT_CUR/VBA/__SRP_1
1684 bytes_VBA_PROJECT_CUR/VBA/__SRP_2
17104 bytes_VBA_PROJECT_CUR/VBA/__SRP_3
18388 bytes_VBA_PROJECT_CUR/VBA/__SRP_4
19158 bytes_VBA_PROJECT_CUR/VBA/__SRP_5
20633 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
AutoExecWorkbook_OpenRuns when the Excel Workbook is opened
SuspiciousHex StringsHex-encoded strings were detected, may be used to obfuscate strings (option --decode to see all)
SuspiciousOpenMay open a file
SuspiciousWriteMay write to a file (if combined with Open)
Suspiciousadodb.streamMay create a text file
SuspiciousSaveToFileMay create a text file
SuspiciousShellMay run an executable file or a system command
SuspiciousWScript.ShellMay run an executable file or a system command
SuspiciousCreateObjectMay create an OLE object
SuspiciousShell.ApplicationMay run an application (if combined with CreateObject)
Suspiciousmicrosoft.xmlhttpMay download files from the Internet
SuspiciousChrMay attempt to obfuscate specific strings (use option --deobf to deobfuscate)

Intelligence

File Origin
# of uploads :
3
# of downloads :
212
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/282539/
Result
Verdict:
Clean
Maliciousness:

Behaviour
Searching for the window
Creating a window
Сreating synchronization primitives
Result
Verdict:
Malicious
File Type:
Legacy Excel File with Macro
Link:
https://app.docguard.net/b3fe4fd7f741756b5632607a83a4269984b1059f7b60550bafd87482d638b968/results/dashboard
Document image
Image:
Download PNG
Document image
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
greyware macros macros-on-open setupapi.dll shdocvw.dll shell32.dll
Link:
https://www.filescan.io/uploads/62b4012b1fcdba4e1a4c763b/reports/a192175c-faa7-4ee5-8ec2-9620b0e65491/overview
Label:
Malicious
Suspicious Score:
7.9/10
Score Malicious:
8%
Score Benign:
2%
Link:
https://www.malware.ai/gui/files/?id=5d99e198-4250-4f0a-a284-6ccceca001c5
Result
Verdict:
MALICIOUS
Link:
https://labs.inquest.net/dfi/sha256/b3fe4fd7f741756b5632607a83a4269984b1059f7b60550bafd87482d638b968
Details
Macro with Startup Hook
Detected macro logic that will automatically execute on document open. Most malware contains some execution hook.
Macro with File System Write
Detected macro logic that can write data to the file system.
Shell.Application Object
Detected the instantiation of Shell Application object within the macro.
Macro Contains Suspicious String
Detected a macro with a suspicious string. Suspicious strings include privileged function calls, obfuscations, odd registry keys, etc...
Document With Minimal Content
Document contains less than 1 kilobyte of semantic information.
Result
Threat name:
Unknown
Detection:
malicious
Classification:
expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1018449
Signature
Antivirus / Scanner detection for submitted sample
Creates and opens a fake document (probably a fake document to hide exploiting)
Document contains an embedded VBA macro with suspicious strings
Document contains an embedded VBA with functions possibly related to ADO stream file operations
Document contains an embedded VBA with functions possibly related to HTTP operations
Document contains an embedded VBA with hexadecimal encoded strings
Document exploit detected (creates forbidden files)
Document exploit detected (drops PE files)
Document exploit detected (process start blacklist hit)
Machine Learning detection for dropped file
Machine Learning detection for sample
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
PE file contains section with special chars
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines)
Snort IDS alert for network traffic
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 650948 Sample: DHLAWB50.xls Startdate: 23/06/2022 Architecture: WINDOWS Score: 100 44 grillflowinteract.sytes.net 2->44 46 121.205.6.0.in-addr.arpa 2->46 64 Snort IDS alert for network traffic 2->64 66 Multi AV Scanner detection for domain / URL 2->66 68 Antivirus / Scanner detection for submitted sample 2->68 70 11 other signatures 2->70 10 EXCEL.EXE 53 24 2->10         started        signatures3 process4 dnsIp5 48 tractorandinas.com 192.185.115.3, 443, 49171 UNIFIEDLAYER-AS-1US United States 10->48 50 www.tractorandinas.com 10->50 36 C:\Users\user\AppData\Roaming\...\RDUZDBH.exe, PE32 10->36 dropped 38 C:\Users\user\...\knkxjbknjxbnvhncn[1].exe, PE32 10->38 dropped 40 C:\Users\user\Desktop\DHLAWB50.xls, Composite 10->40 dropped 74 Document exploit detected (creates forbidden files) 10->74 15 RDUZDBH.exe 9 10->15         started        file6 signatures7 process8 file9 42 C:\Users\user\AppData\...42hnhdnf.sfx.exe, PE32 15->42 dropped 60 Multi AV Scanner detection for dropped file 15->60 62 Creates and opens a fake document (probably a fake document to hide exploiting) 15->62 19 cmd.exe 15->19         started        21 AcroRd32.exe 29 15->21         started        signatures10 process11 process12 23 Nhnhdnf.sfx.exe 7 19->23         started        27 RdrCEF.exe 2 21->27         started        dnsIp13 34 C:\Users\user\AppData\Roaming34hnhdnf.exe, PE32+ 23->34 dropped 72 Multi AV Scanner detection for dropped file 23->72 30 Nhnhdnf.exe 2 23->30         started        52 192.168.2.22, 137, 443, 49171 unknown unknown 27->52 54 192.168.2.255, 137 unknown unknown 27->54 file14 signatures15 process16 dnsIp17 56 grillflowinteract.sytes.net 31.210.20.242, 49172, 49173, 49174 PLUSSERVER-ASN1DE Netherlands 30->56 58 121.205.6.0.in-addr.arpa 30->58 76 Machine Learning detection for dropped file 30->76 78 Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines) 30->78 80 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 30->80 signatures18
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b3fe4fd7f741756b5632607a83a4269984b1059f7b60550bafd87482d638b968/
Threat name:
Script-Macro.Trojan.Valyria
Create hunting rule
Status:
Malicious
First seen:
2022-06-22 22:47:52 UTC
File Type:
Document
Extracted files:
33
AV detection:
16 of 26 (61.54%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wp7e7v7xif2wwvrsmb5ihjbgtgclcbm7pnqfkc5p3b2ifvryxfua._file
Result
Malware family:
n/a
Score:
  8/10
Tags:
macro macro_on_action
Link:
https://tria.ge/reports/220623-gprlfaefg5/
Behaviour
Suspicious use of FindShellTrayWindow
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
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
Office loads VBA resources, possible macro or embedded object present
Enumerates physical storage devices
Checks computer location settings
Executes dropped EXE
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b3fe4fd7f741/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/b3fe4fd7f741756b5632607a83a4269984b1059f7b60550bafd87482d638b968

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:BitcoinAddress
Create hunting rule
Author:Didier Stevens (@DidierStevens)
Description:Contains a valid Bitcoin address
Rule name:informational_win_ole_protected
Create hunting rule
Author:Jeff White (karttoon@gmail.com) @noottrak
Description:Identify OLE Project protection within documents.
Rule name:malware_shellcode_hash
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect shellcode api hash value
Rule name:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:pdb_YARAify
Create hunting rule
Author:@wowabiy314
Description:PDB

File information

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

Malspam

Excel file xls b3fe4fd7f741756b5632607a83a4269984b1059f7b60550bafd87482d638b968

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/282539/

Comments