MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 505a456c707a01231e43505cf4a1e16705052cc27b60e891f4cec89ec05c6a0e. 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: 12


Intelligence 12 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 505a456c707a01231e43505cf4a1e16705052cc27b60e891f4cec89ec05c6a0e
SHA3-384 hash: 93947924832914ffdbab3ddc4b547c83104f88f2ae6d0243732ad3220b36c2eb964ca8b3292d69bf8b548c9c634544d3
SHA1 hash: 0a4ab41ec770e70a2df29c3e9c0e558af80fe610
MD5 hash: 869b5d55618b2975af5859691e8b0d2d
humanhash: asparagus-mango-mirror-mountain
File name:EU-Business-Register_pdf.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:18'432 bytes
First seen:2022-08-03 22:22:35 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'750 x AgentTesla, 19'656 x Formbook, 12'248 x SnakeKeylogger)
ssdeep 96:YPA8H2/CtNxM4VVpacm7VbHhXr1TR6glUkFiIfnkMNM4rAX0SV6orKAXTjAFbAhv:Y4QLxDpiZbHhFR6cBAIfntFsOof4bg
TLSH T1C38295B5B3D7CA79CDD50B318412D1450734BE6AD853D62BF1C93B4F1DEA1880257AA3
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon 34ecccd4e8f4dce4 (1 x AgentTesla)
Reporter GovCERT_CH
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
324
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
EU-Business-Register_pdf.exe
Verdict:
Malicious activity
Analysis date:
2022-08-03 22:24:18 UTC
Tags:
agenttesla
Link:
https://app.any.run/tasks/bf4f138a-bfa6-480f-a358-87122e14ccdd

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/296303/
Detection(s):
SecuriteInfo.com.Trojan.Downloader.10124.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
DNS request
Sending a custom TCP request
Launching a process
Creating a process with a hidden window
Creating a file in the %AppData% subdirectories
Creating a file
Creating a window
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/62eaf585b7eec6562789346b/reports/274ebf71-f7f5-4ac7-a45e-144ea327b269/overview
Result
Verdict:
SUSPICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/dd806663-8e8f-4ae7-af7d-862ba2a7f25b
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1045955
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Encrypted powershell cmdline option found
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted 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)
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected Generic Downloader
Yara detected MSILDownloaderGeneric
Yara detected Telegram RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 678449 Sample: EU-Business-Register_pdf.exe Startdate: 04/08/2022 Architecture: WINDOWS Score: 100 49 Malicious sample detected (through community Yara rule) 2->49 51 Antivirus / Scanner detection for submitted sample 2->51 53 Multi AV Scanner detection for submitted file 2->53 55 8 other signatures 2->55 7 EU-Business-Register_pdf.exe 16 7 2->7         started        12 Uprochzq.exe 14 4 2->12         started        14 Uprochzq.exe 3 2->14         started        process3 dnsIp4 39 cdn.discordapp.com 162.159.134.233, 443, 49753 CLOUDFLARENETUS United States 7->39 33 C:\Users\user\AppData\...\Uprochzq.exe, PE32 7->33 dropped 35 C:\Users\...\Uprochzq.exe:Zone.Identifier, ASCII 7->35 dropped 37 C:\Users\...U-Business-Register_pdf.exe.log, ASCII 7->37 dropped 57 Encrypted powershell cmdline option found 7->57 59 Writes to foreign memory regions 7->59 61 Allocates memory in foreign processes 7->61 63 Injects a PE file into a foreign processes 7->63 16 InstallUtil.exe 2 7->16         started        19 powershell.exe 13 7->19         started        41 162.159.129.233, 443, 49780 CLOUDFLARENETUS United States 12->41 65 Antivirus detection for dropped file 12->65 67 Multi AV Scanner detection for dropped file 12->67 69 Machine Learning detection for dropped file 12->69 21 powershell.exe 12->21         started        23 InstallUtil.exe 12->23         started        43 162.159.133.233, 443, 49785 CLOUDFLARENETUS United States 14->43 25 powershell.exe 14->25         started        file5 signatures6 process7 signatures8 45 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 16->45 47 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 16->47 27 conhost.exe 19->27         started        29 conhost.exe 21->29         started        31 conhost.exe 25->31         started        process9
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/505a456c707a01231e43505cf4a1e16705052cc27b60e891f4cec89ec05c6a0e/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-08-03 22:11:17 UTC
File Type:
PE (.Net Exe)
Extracted files:
4
AV detection:
22 of 26 (84.62%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=kbnek3dqpiasghsdkbopjipbm4cqklgcpnqorepuz3ej5qc4niha._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla collection keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/220803-2arywahacp/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Enumerates physical storage devices
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Adds Run key to start application
Checks computer location settings
AgentTesla payload
AgentTesla
Malware Config
C2 Extraction:
https://api.telegram.org/bot1785009644:AAH8XV-UZw1vniz323GZs3Ow8mEiXXjAkLo/sendDocument
Unpacked files
SH256 hash:
505a456c707a01231e43505cf4a1e16705052cc27b60e891f4cec89ec05c6a0e
MD5 hash:
869b5d55618b2975af5859691e8b0d2d
SHA1 hash:
0a4ab41ec770e70a2df29c3e9c0e558af80fe610
Link:
https://www.unpac.me/results/a24ecffd-0ff7-4dc6-b08d-2187d830b5aa/
Malware family:
AgentTesla.v3
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/505a456c707a/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.35
Link:
https://yomi.yoroi.company/submissions/505a456c707a01231e43505cf4a1e16705052cc27b60e891f4cec89ec05c6a0e

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:INDICATOR_SUSPICIOUS_EXE_DiscordURL
Create hunting rule
Author:ditekSHen
Description:Detects executables Discord URL observed in first stage droppers
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:SUSP_Discord_Attachments_URL
Create hunting rule
Author:SECUINFRA Falcon Team
Description:Detects a PE file that contains an Discord Attachments URL. This is often used by Malware to download further payloads
Rule name:SUSP_PE_Discord_Attachment_Oct21_1
Create hunting rule
Author:Florian Roth
Description:Detects suspicious executable with reference to a Discord attachment (often used for malware hosting on a legitimate FQDN)
Reference:Internal Research

File information

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

Malspam

AgentTesla

Executable exe 505a456c707a01231e43505cf4a1e16705052cc27b60e891f4cec89ec05c6a0e

(this sample)

  
Dropped by
agenttesla
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/296303/

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