MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c788a7e6d4c74e709845a01627e3cd7bb596dabbafb75aaf3929315e4b58e3e1. 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: 7


Intelligence 7 IOCs YARA 6 File information Comments
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SHA256 hash: c788a7e6d4c74e709845a01627e3cd7bb596dabbafb75aaf3929315e4b58e3e1
SHA3-384 hash: 77980adb927dcbd9233a1864ff005978adf329b3c4a59c9e6cba2f18c944e5755f7b0a57154b5a6804aff9b4af55d4c6
SHA1 hash: b91c79b2310949d38df624f9aa912c2cd53291a6
MD5 hash: c3afba0e799cecf164b4e90d045ab468
humanhash: cat-bluebird-pip-jupiter
File name:b668f791607842e0859fc3d9a1e50228766aa158becb38fbd3023535ff829654.xls
Download: download sample
Signature Gozi
Create hunting rule
File size:35'840 bytes
First seen:2020-12-09 15:04:24 UTC
Last seen:2020-12-09 16:55:41 UTC
File type:Excel file xls
MIME type:application/vnd.ms-excel
ssdeep 768:ucPiTQAVW/89BQnmlcGvgZ6GrvhpJ8dUOMaEm73dD2ajhG:ucPiTQAVW/89BQnmlcGvgZ6GrvhpJ8di
TLSH 3AF250A2FB15F441F62EB73648DD418A2721FC209EA09A5B335EF319EFB03542E16616
Reporter JAMESWT_WT
Tags:Gozi isfb 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
Application name is Microsoft Excel
Office document is in OLE format
OLE dump

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

Section IDSection sizeSection name
14096 bytesDocumentSummaryInformation
24096 bytesSummaryInformation
325896 bytesBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
399
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
b668f791607842e0859fc3d9a1e50228766aa158becb38fbd3023535ff829654.xls
Verdict:
Malicious activity
Analysis date:
2020-12-09 15:13:38 UTC
Tags:
macros
Link:
https://app.any.run/tasks/0256d28a-3f60-4c2e-850e-484666d1f562

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
TwinWave.EvilDoc.Excel4MagicPalmersArcade.20201207.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malicious
File Type:
Legacy Office File
Link:
https://app.docguard.net/c788a7e6d4c74e709845a01627e3cd7bb596dabbafb75aaf3929315e4b58e3e1/results/dashboard
Payload URLs
URL
File name
https://onlinecompaniehouse.com/sorvD2
Book
Result
Verdict:
MALICIOUS
Result
Threat name:
Hidden Macro 4.0 Ursnif
Create hunting rule
Detection:
malicious
Classification:
bank.troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/559203
Signature
Creates a COM Internet Explorer object
Document exploit detected (drops PE files)
Document exploit detected (process start blacklist hit)
Document exploit detected (UrlDownloadToFile)
Found Excel 4.0 Macro with suspicious formulas
Office document tries to convince victim to disable security protection (e.g. to enable ActiveX or Macros)
Office process drops PE file
Sigma detected: Microsoft Office Product Spawning Windows Shell
System process connects to network (likely due to code injection or exploit)
Writes registry values via WMI
Yara detected Ursnif
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 328699 Sample: b668f791607842e0859fc3d9a1e... Startdate: 09/12/2020 Architecture: WINDOWS Score: 100 51 Document exploit detected (drops PE files) 2->51 53 Office document tries to convince victim to disable security protection (e.g. to enable ActiveX or Macros) 2->53 55 Yara detected  Ursnif 2->55 57 3 other signatures 2->57 7 EXCEL.EXE 90 46 2->7         started        12 iexplore.exe 1 31 2->12         started        14 iexplore.exe 1 31 2->14         started        16 3 other processes 2->16 process3 dnsIp4 41 onlinecompaniehouse.com 194.36.189.37, 443, 49165 HSAE Netherlands 7->41 35 C:\gHnbfKt\cOhtfBj.dvx, PE32 7->35 dropped 37 C:\Users\user\AppData\Local\...\sorv[1].png, PE32 7->37 dropped 59 Document exploit detected (process start blacklist hit) 7->59 61 Document exploit detected (UrlDownloadToFile) 7->61 18 rundll32.exe 7->18         started        20 iexplore.exe 17 12->20         started        23 iexplore.exe 17 14->23         started        25 iexplore.exe 20 16->25         started        27 iexplore.exe 17 16->27         started        29 iexplore.exe 16->29         started        file5 signatures6 process7 dnsIp8 31 rundll32.exe 18->31         started        39 fosterpod.website 45.133.216.115, 443, 49168, 49169 CLOUDSOLUTIONSRU Russian Federation 25->39 process9 dnsIp10 43 fosterpod.website 31->43 45 System process connects to network (likely due to code injection or exploit) 31->45 47 Writes registry values via WMI 31->47 49 Creates a COM Internet Explorer object 31->49 signatures11
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c788a7e6d4c74e709845a01627e3cd7bb596dabbafb75aaf3929315e4b58e3e1/
Threat name:
Script.Trojan.Wacatac
Create hunting rule
Status:
Malicious
First seen:
2020-12-09 15:05:05 UTC
File Type:
Document
Extracted files:
3
AV detection:
2 of 48 (4.17%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  10/10
Tags:
macro
Link:
https://tria.ge/reports/201209-cmraq4eeyn/
Behaviour
Enumerates system info in registry
Modifies Internet Explorer settings
Suspicious behavior: AddClipboardFormatListener
Suspicious use of SetWindowsHookEx
Checks processor information in registry
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
Loads dropped DLL
Blocklisted process makes network request
Process spawned unexpected child process
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/c788a7e6d4c74e709845a01627e3cd7bb596dabbafb75aaf3929315e4b58e3e1

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:Email_stealer_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Email in files like avemaria
Rule name:IPPort_combo_mem
Create hunting rule
Author:James_inthe_box
Description:IP and port combo
Rule name:Select_from_enumeration
Create hunting rule
Author:James_inthe_box
Description:IP and port combo
Rule name:SharedStrings
Create hunting rule
Author:Katie Kleemola
Description:Internal names found in LURK0/CCTV0 samples
Rule name:SUSP_EnableContent_String_Gen
Create hunting rule
Author:Florian Roth
Description:Detects suspicious string that asks to enable active content in Office Doc
Reference:Internal Research
Rule name:UAC_bypass_bin_mem
Create hunting rule
Author:James_inthe_box
Description:UAC bypass in files like avemaria

File information

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

Comments