MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 55f9b507acd2ee7d2f4e66fe6696ff673024d183a11c4f84f63011e7088213c9. 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: 5


Intelligence 5 IOCs YARA 8 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 55f9b507acd2ee7d2f4e66fe6696ff673024d183a11c4f84f63011e7088213c9
SHA3-384 hash: c3199a6e98a688a8a1ff2f7c9082a300d7484df0ab88ec9ebdae9429bdeb82366cdc6dc6ba18e6473ebcd47332403484
SHA1 hash: 637ae926536812c5ab261ae0540a8114c4a0baa9
MD5 hash: 578955e7fde0737ce544df8e6d04bd35
humanhash: whiskey-monkey-december-hydrogen
File name:SecuriteInfo.com.Heur.11979.7265
Download: download sample
File size:64'000 bytes
First seen:2021-01-28 18:02:50 UTC
Last seen:Never
File type:Excel file xlsx
MIME type:application/vnd.ms-excel
ssdeep 1536:ycPiTQAVW/89BQnmlcGvgZ6GrvhpJ8YUOMct/BI/s/Vk/OZ/R/7/Gm/UQ/OhGW/7:ycPiTQAVW/89BQnmlcGvgZ6Gr3J8YUOe
TLSH 265382A17E12C025F71D8B764467829D2FA1FC11ABD265CF331AB75A6FB02843E93817
Reporter SecuriteInfoCom

Intelligence

File Origin
# of uploads :
1
# of downloads :
123
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
SecuriteInfo.com.Heur.11979.7265
Verdict:
Malicious activity
Analysis date:
2021-01-28 18:05:16 UTC
Tags:
maldoc-42 loader
Link:
https://app.any.run/tasks/cbf319e9-50e9-470e-8e3f-f1781a1e58ad

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Legit
File type:
application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
Has a screenshot:
False
Contains macros:
False
Detection(s):
SecuriteInfo.com.Heur.11979.7265.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.Excel4MagicPalmersArcade.20201207.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
File Type:
Legacy Office File
Link:
https://app.docguard.net/55f9b507acd2ee7d2f4e66fe6696ff673024d183a11c4f84f63011e7088213c9/results/dashboard
Result
Verdict:
MALICIOUS
Result
Threat name:
Hidden Macro 4.0
Create hunting rule
Detection:
malicious
Classification:
expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/593223
Signature
Allocates memory in foreign processes
Antivirus detection for URL or domain
Document exploit detected (drops PE files)
Document exploit detected (process start blacklist hit)
Document exploit detected (UrlDownloadToFile)
Drops PE files to the user root directory
Found Excel 4.0 Macro with suspicious formulas
Injects code into the Windows Explorer (explorer.exe)
Machine Learning detection for dropped file
Maps a DLL or memory area into another process
Office document tries to convince victim to disable security protection (e.g. to enable ActiveX or Macros)
Office process drops PE file
Overwrites code with unconditional jumps - possibly settings hooks in foreign process
Sigma detected: Microsoft Office Product Spawning Windows Shell
Sigma detected: Schedule REGSVR windows binary
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected hidden Macro 4.0 in Excel
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 345655 Sample: SecuriteInfo.com.Heur.11979.xls Startdate: 28/01/2021 Architecture: WINDOWS Score: 100 53 Antivirus detection for URL or domain 2->53 55 Sigma detected: Schedule REGSVR windows binary 2->55 57 Document exploit detected (drops PE files) 2->57 59 7 other signatures 2->59 9 EXCEL.EXE 38 56 2->9         started        14 regsvr32.exe 2->14         started        16 regsvr32.exe 2->16         started        process3 dnsIp4 47 toletnewchandigarh.com 162.214.114.96, 49719, 80 UNIFIEDLAYER-AS-1US United States 9->47 49 hiranandanirise.com 192.185.5.148, 49723, 80 UNIFIEDLAYER-AS-1US United States 9->49 51 3 other IPs or domains 9->51 43 C:\Users\user\AppData\Local\...\595265[1].jpg, PE32 9->43 dropped 69 Document exploit detected (process start blacklist hit) 9->69 71 Document exploit detected (UrlDownloadToFile) 9->71 18 rundll32.exe 9->18         started        21 rundll32.exe 9->21         started        23 rundll32.exe 9->23         started        27 2 other processes 9->27 25 regsvr32.exe 14->25         started        file5 signatures6 process7 signatures8 61 Overwrites code with unconditional jumps - possibly settings hooks in foreign process 18->61 63 Injects code into the Windows Explorer (explorer.exe) 18->63 65 Writes to foreign memory regions 18->65 67 2 other signatures 18->67 29 explorer.exe 8 1 18->29         started        33 regsvr32.exe 21->33         started        35 WerFault.exe 20 9 25->35         started        process9 file10 45 C:\Users\userbehaviorgraphTOLS.BBDDFF3, PE32 29->45 dropped 73 Drops PE files to the user root directory 29->73 37 schtasks.exe 1 29->37         started        39 WerFault.exe 9 33->39         started        signatures11 process12 process13 41 conhost.exe 37->41         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/55f9b507acd2ee7d2f4e66fe6696ff673024d183a11c4f84f63011e7088213c9/
Gathering data
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/55f9b507acd2ee7d2f4e66fe6696ff673024d183a11c4f84f63011e7088213c9

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:Excel_Hidden_Macro_Sheet
Create hunting rule
Rule name:INDICATOR_DOC_PhishingPatterns
Create hunting rule
Author:ditekSHen
Description:Detects OLE, RTF, PDF and OOXML (decompressed) documents with common phishing strings
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