MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3b0674528185c1927af4b44cb1a04cac22137140ba78e74095e816b25d2fca97. 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



AgentTesla


Vendor detections: 9


Maldoc score: 7


Intelligence 9 IOCs YARA 5 File information Comments

SHA256 hash: 3b0674528185c1927af4b44cb1a04cac22137140ba78e74095e816b25d2fca97
SHA3-384 hash: c2a488d9d9f05897546bd1d5b833c132c4c820aeee37a699ef1507c26fcb84b100409b9ca16b773fa4ab02bcf185a8d8
SHA1 hash: d002c4b85e44efa4fe20574f8962c2b3c799add6
MD5 hash: f23dfd7542e484ee84eb75b7b869821f
humanhash: four-may-ink-winner
File name:Contract Request Purchase Order.xlsm
Download: download sample
Signature AgentTesla
File size:147'891 bytes
First seen:2020-12-28 06:44:26 UTC
Last seen:2020-12-28 10:24:36 UTC
File type:Excel file xlsm
MIME type:application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
ssdeep 3072:znqDKd9tGQBdVsJxBGH/7CftPT7yCBmXoG:bqmtGeOxBGHwlT7DG
TLSH D9E39D839C059B83E55C93F97E074E980F2A4B5DE692BAEF55260F8B3B513670D8D02C
Reporter cocaman
Tags:xlsm


Avatar
cocaman
Malicious email (T1566.001)
From: "Pumpen<iinfo@spltech.in>" (likely spoofed)
Received: "from spltech.in (unknown [62.113.202.122]) "
Date: "28 Dec 2020 10:28:56 +0100"
Subject: "Contract Request Purchase Order"
Attachment: "Contract Request Purchase Order.xlsm"

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: 7
OLE dump

MalwareBazaar was able to identify 13 sections in this file using oledump:

Section IDSection sizeSection name
A1422 bytesPROJECT
A262 bytesPROJECTwm
A31180 bytesVBA/Sheet1
A43904 bytesVBA/ThisWorkbook
A52879 bytesVBA/_VBA_PROJECT
A61863 bytesVBA/__SRP_0
A7451 bytesVBA/__SRP_1
A8432 bytesVBA/__SRP_2
A9106 bytesVBA/__SRP_3
A10865 bytesVBA/__SRP_4
A11318 bytesVBA/__SRP_5
A12515 bytesVBA/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
SuspiciousShellMay run an executable file or a system command
SuspiciousChrMay attempt to obfuscate specific strings (use option --deobf to deobfuscate)
SuspiciousHex StringsHex-encoded strings were detected, may be used to obfuscate strings (option --decode to see all)

Intelligence


File Origin
# of uploads :
4
# of downloads :
345
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Contract Request Purchase Order.xlsm
Verdict:
Malicious activity
Analysis date:
2020-12-28 06:45:31 UTC
Tags:
macros macros-on-open

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
File type:
application/vnd.ms-excel.sheet.macroEnabled.12
Has a screenshot:
False
Contains macros:
True
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a process with a hidden window
DNS request
Sending an HTTP GET request
Creating a file in the %AppData% directory
Creating a process from a recently created file
Running batch commands by exploiting the app vulnerability
Launching a file downloaded from the Internet
Result
Verdict:
Malicious
File Type:
Excel File with Macro
Document image
Document image
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Signature
.NET source code contains very large array initializations
Document contains an embedded VBA macro with suspicious strings
Document exploit detected (process start blacklist hit)
Found malware configuration
Injects a PE file into a foreign processes
Installs a global keyboard hook
Machine Learning detection for dropped file
Machine Learning detection for sample
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
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Sigma detected: Microsoft Office Product Spawning Windows Shell
Sigma detected: Powershell download file and shellexecute
Suspicious powershell command line found
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to download and execute files (via powershell)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal ftp login credentials
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file access)
Yara detected AgentTesla
Yara detected AntiVM_3
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 334297 Sample: Contract Request Purchase O... Startdate: 28/12/2020 Architecture: WINDOWS Score: 100 38 Found malware configuration 2->38 40 Multi AV Scanner detection for submitted file 2->40 42 Office document tries to convince victim to disable security protection (e.g. to enable ActiveX or Macros) 2->42 44 10 other signatures 2->44 9 EXCEL.EXE 57 14 2->9         started        process3 file4 32 C:\...\~$Contract Request Purchase Order.xlsm, data 9->32 dropped 64 Document exploit detected (process start blacklist hit) 9->64 13 cmd.exe 9->13         started        signatures5 process6 signatures7 66 Suspicious powershell command line found 13->66 68 Tries to download and execute files (via powershell) 13->68 16 powershell.exe 12 7 13->16         started        process8 dnsIp9 34 contractrequest.nirmal-co.xyz 104.219.248.111, 49165, 80 NAMECHEAP-NETUS United States 16->34 30 C:\Users\user\AppData\Roaming\SqTFL.exe, PE32 16->30 dropped 46 Powershell drops PE file 16->46 21 SqTFL.exe 16->21         started        file10 signatures11 process12 signatures13 48 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 21->48 50 Machine Learning detection for dropped file 21->50 52 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 21->52 54 Injects a PE file into a foreign processes 21->54 24 SqTFL.exe 12 21->24         started        28 SqTFL.exe 21->28         started        process14 dnsIp15 36 abpurchase.info 199.188.200.150, 49166, 49168, 587 NAMECHEAP-NETUS United States 24->36 56 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 24->56 58 Tries to steal Mail credentials (via file access) 24->58 60 Tries to harvest and steal ftp login credentials 24->60 62 2 other signatures 24->62 signatures16
Threat name:
Script-Macro.Trojan.Heuristic
Status:
Malicious
First seen:
2020-12-28 06:45:05 UTC
File Type:
Document
Extracted files:
28
AV detection:
14 of 29 (48.28%)
Threat level:
  2/5
Result
Malware family:
n/a
Score:
  10/10
Tags:
n/a
Behaviour
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
Checks processor information in registry
Office loads VBA resources, possible macro or embedded object present
Suspicious use of SetThreadContext
Loads dropped DLL
Blocklisted process makes network request
Executes dropped EXE
Process spawned unexpected child process
Malware Config
Dropper Extraction:
http://contractrequest.nirmal-co.xyz/Contract%20Request%20Purchase%20Order.exe
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:Email_stealer_bin_mem
Author:James_inthe_box
Description:Email in files like avemaria
Rule name:IPPort_combo_mem
Author:James_inthe_box
Description:IP and port combo
Rule name:Select_from_enumeration
Author:James_inthe_box
Description:IP and port combo
Rule name:SharedStrings
Author:Katie Kleemola
Description:Internal names found in LURK0/CCTV0 samples
Rule name:UAC_bypass_bin_mem
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.

Malspam

AgentTesla

Excel file xlsm 3b0674528185c1927af4b44cb1a04cac22137140ba78e74095e816b25d2fca97

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments