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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f053141b96ec8d497c906e8d58fcb085493c922b2dff47625c60ec69fa9b57bd. 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



Gozi


Vendor detections: 9


Maldoc score: 20


Intelligence 9 IOCs YARA 6 File information Comments

SHA256 hash: f053141b96ec8d497c906e8d58fcb085493c922b2dff47625c60ec69fa9b57bd
SHA3-384 hash: 661d4d9cec3b324cb10bb491f90d00b62b76bb7304889ca6c0cbe75425463e4b9313034312ca552ca8cb4735debd8a49
SHA1 hash: 3ef0f41fe763315ef5985a18f6da5596536f83cb
MD5 hash: 2813f853a3b44a5aea25160a5c43a02f
humanhash: batman-north-eight-delta
File name:23112022-7771492.xls
Download: download sample
Signature Gozi
File size:89'600 bytes
First seen:2022-11-23 12:15:24 UTC
Last seen:2022-11-23 13:32:27 UTC
File type:Excel file xls
MIME type:application/vnd.ms-excel
ssdeep 1536:tSlYkEIbSkKBEqEXPgsRZmbaoFhZhR0cixIHm0vYVE1jqb4c+DoW4bzo4dobOZfY:tSlYkEIuPm3fNRZmbaoFhZhR0cixIHmI
TLSH T1A3932819B656D94BD6492F364CA7D7E97336BC41AF9B43073208F73F2E7A680C902606
TrID 80.2% (.XLS) Microsoft Excel sheet (32500/1/3)
19.7% (.) Generic OLE2 / Multistream Compound (8000/1)
Reporter JAMESWT_WT
Tags:Fattura BRT Gozi isfb ITA Ursnif 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: 20
OLE dump

MalwareBazaar was able to identify 16 sections in this file using oledump:

Section IDSection sizeSection name
1117 bytesCompObj
2248 bytesDocumentSummaryInformation
3208 bytesSummaryInformation
444448 bytesWorkbook
5523 bytes_VBA_PROJECT_CUR/PROJECT
6104 bytes_VBA_PROJECT_CUR/PROJECTwm
717413 bytes_VBA_PROJECT_CUR/VBA/Foglio1
81203 bytes_VBA_PROJECT_CUR/VBA/Questa_cartella_di_lavoro
93587 bytes_VBA_PROJECT_CUR/VBA/_VBA_PROJECT
104065 bytes_VBA_PROJECT_CUR/VBA/__SRP_0
11469 bytes_VBA_PROJECT_CUR/VBA/__SRP_1
128036 bytes_VBA_PROJECT_CUR/VBA/__SRP_2
131096 bytes_VBA_PROJECT_CUR/VBA/__SRP_3
14680 bytes_VBA_PROJECT_CUR/VBA/__SRP_4
15106 bytes_VBA_PROJECT_CUR/VBA/__SRP_5
16558 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
SuspiciousEnvironMay read system environment variables
SuspiciousOpenMay open a file
SuspiciousWriteMay write to a file (if combined with Open)
SuspiciousPutMay write to a file (if combined with Open)
SuspiciousBinaryMay read or write a binary file (if combined with Open)
SuspiciousShellMay run an executable file or a system command
SuspiciousCreateObjectMay create an OLE object
SuspiciousMSXML2.XMLHTTPMay download files from the Internet
SuspiciousHex StringsHex-encoded strings were detected, may be used to obfuscate strings (option --decode to see all)
SuspiciousBase64 StringsBase64-encoded strings were detected, may be used to obfuscate strings (option --decode to see all)

Intelligence


File Origin
# of uploads :
2
# of downloads :
388
Origin country :
IT IT
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
23112022-7771492.xls
Verdict:
Malicious activity
Analysis date:
2022-11-23 12:16:47 UTC
Tags:
macros maldoc-5

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Clean
Maliciousness:

Behaviour
Sending a custom TCP request
Creating a window
Сreating synchronization primitives
Searching for the window
Result
Verdict:
Malicious
File Type:
Legacy Excel File with Macro
Behaviour
BlacklistAPI detected
Document image
Document image
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
evasive language-it macros
Label:
Malicious
Suspicious Score:
7.5/10
Score Malicious:
76%
Score Benign:
24%
Result
Threat name:
Unknown
Detection:
malicious
Classification:
expl
Score:
76 / 100
Signature
Document contains an embedded VBA macro which may execute processes
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
Machine Learning detection for sample
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Behaviour
Behavior Graph:
Threat name:
Document-Excel.Trojan.Ursnif
Status:
Malicious
First seen:
2022-11-23 11:45:37 UTC
File Type:
Document
Extracted files:
20
AV detection:
21 of 41 (51.22%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  8/10
Tags:
macro
Behaviour
Checks processor information in registry
Enumerates system info in registry
Modifies Internet Explorer settings
Modifies registry class
Suspicious behavior: AddClipboardFormatListener
Suspicious use of SetWindowsHookEx
Office loads VBA resources, possible macro or embedded object present
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:BitcoinAddress
Author:Didier Stevens (@DidierStevens)
Description:Contains a valid Bitcoin address
Rule name:informational_win_ole_protected
Author:Jeff White (karttoon@gmail.com) @noottrak
Description:Identify OLE Project protection within documents.
Rule name:malware_shellcode_hash
Author:JPCERT/CC Incident Response Group
Description:detect shellcode api hash value
Rule name:meth_get_eip
Author:Willi Ballenthin
Rule name:pdb_YARAify
Author:@wowabiy314
Description:PDB
Rule name:TA505_Maldoc_21Nov_2
Author:Arkbird_SOLG
Description:invitation (1).xls
Reference:https://twitter.com/58_158_177_102/status/1197432303057637377

File information


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

Comments