MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1a3f9ac2abe62763028d1975825e0058620a4c1cd4cdc6ab9ace7b34f5a1eacd. 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: 17


Intelligence 17 IOCs YARA 14 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 1a3f9ac2abe62763028d1975825e0058620a4c1cd4cdc6ab9ace7b34f5a1eacd
SHA3-384 hash: baae05c053aa29d73c42b03c4add86b0846c6449559044befd554b27c5c30a961adc3ec8eb383dabe73bd923a7b63704
SHA1 hash: c944f9989bfd8210ebf4f7cd66f84b4995f26988
MD5 hash: d312ec6c46fb78e9d03079e6d940802d
humanhash: lactose-island-four-item
File name:rTTSwiftCopy.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:659'968 bytes
First seen:2023-11-20 14:46:09 UTC
Last seen:2023-11-20 16:15:25 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 12288:YR361h61EWGj5qzNlkOVqlKkasGarzFcPkn0ZuHy23XByrx0MleCIWIQQyM61:YMY7GjWNKOVi6xMB220sjHByOge5X89
Threatray 1'795 similar samples on MalwareBazaar
TLSH T113E423D43BA04563C3F659F384FA294806F7F59B5882C1DD4C8110EF8BEAF8989497A7
TrID 63.0% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.2% (.SCR) Windows screen saver (13097/50/3)
9.0% (.EXE) Win64 Executable (generic) (10523/12/4)
5.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon c4c6dcccecf8b4b8 (12 x AgentTesla, 3 x Formbook, 2 x RemcosRAT)
Reporter FXOLabs
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
308
Origin country :
BR BR
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
rTTSwiftCopy.exe
Verdict:
Malicious activity
Analysis date:
2023-11-20 14:46:32 UTC
Tags:
agenttesla stealer
Link:
https://app.any.run/tasks/fd238c5f-90fe-45f2-bb6f-718179be0c6a

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/459340/
Detection(s):
SecuriteInfo.com.Trojan.Inject4.59820.7834.28916.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Сreating synchronization primitives
Creating a process with a hidden window
Creating a file in the %temp% directory
Launching a process
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Using the Windows Management Instrumentation requests
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm packed
Link:
https://www.filescan.io/uploads/655b716ce5d5331f5c5bc143/reports/3f1143a1-79f3-46bc-8391-12d46e1b728e/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/1a3f9ac2abe62763028d1975825e0058620a4c1cd4cdc6ab9ace7b34f5a1eacd
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/55271a95-8b6c-4b33-9dae-cb226ec62263
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1345232
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Adds a directory exclusion to Windows Defender
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
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 network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Sigma detected: Scheduled temp file as task from temp location
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AgentTesla
Yara detected AntiVM3
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1345232 Sample: rTTSwiftCopy.exe Startdate: 20/11/2023 Architecture: WINDOWS Score: 100 57 us2.smtp.mailhostbox.com 2->57 61 Found malware configuration 2->61 63 Malicious sample detected (through community Yara rule) 2->63 65 Antivirus detection for dropped file 2->65 67 13 other signatures 2->67 8 rTTSwiftCopy.exe 7 2->8         started        12 rVAkBijioIVFQ.exe 5 2->12         started        14 Micosoft Excel 2023.exe 2->14         started        16 Micosoft Excel 2023.exe 2->16         started        signatures3 process4 file5 53 C:\Users\user\AppData\...\rVAkBijioIVFQ.exe, PE32 8->53 dropped 55 C:\Users\user\AppData\Local\...\tmp8AA3.tmp, XML 8->55 dropped 77 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 8->77 79 Uses schtasks.exe or at.exe to add and modify task schedules 8->79 81 Adds a directory exclusion to Windows Defender 8->81 18 rTTSwiftCopy.exe 1 5 8->18         started        23 powershell.exe 23 8->23         started        35 2 other processes 8->35 83 Antivirus detection for dropped file 12->83 85 Multi AV Scanner detection for dropped file 12->85 87 Machine Learning detection for dropped file 12->87 25 rVAkBijioIVFQ.exe 12->25         started        27 schtasks.exe 1 12->27         started        89 Injects a PE file into a foreign processes 14->89 29 Micosoft Excel 2023.exe 14->29         started        31 schtasks.exe 14->31         started        33 Micosoft Excel 2023.exe 16->33         started        37 2 other processes 16->37 signatures6 process7 dnsIp8 59 us2.smtp.mailhostbox.com 208.91.199.225, 49707, 49710, 49714 PUBLIC-DOMAIN-REGISTRYUS United States 18->59 49 C:\Users\user\...\Micosoft Excel 2023.exe, PE32 18->49 dropped 51 Micosoft Excel 2023.exe:Zone.Identifier, ASCII 18->51 dropped 69 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 18->69 71 Tries to steal Mail credentials (via file / registry access) 18->71 73 Hides that the sample has been downloaded from the Internet (zone.identifier) 18->73 39 conhost.exe 23->39         started        41 conhost.exe 27->41         started        75 Tries to harvest and steal browser information (history, passwords, etc) 29->75 43 conhost.exe 31->43         started        45 conhost.exe 35->45         started        47 conhost.exe 37->47         started        file9 signatures10 process11
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/1a3f9ac2abe62763028d1975825e0058620a4c1cd4cdc6ab9ace7b34f5a1eacd
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/1a3f9ac2abe62763028d1975825e0058620a4c1cd4cdc6ab9ace7b34f5a1eacd/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2023-11-19 23:26:25 UTC
File Type:
PE (.Net Exe)
Extracted files:
13
AV detection:
24 of 38 (63.16%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=di7zvqvl4ytwgaundf2yexqalbrauta42tg4nk42zz5tj5nb5lgq._file
Verdict:
malicious
Label(s):
agenttesla_v4
Create hunting rule
Similar samples:
1a3f9ac2abe62763028d1975825e0058620a4c1cd4cdc6ab9ace7b34f5a1eacd
AgentTesla
864fd318ac33d9788aaaa7ec0414ace672ca381ef2f7d4d878e3e4789c9b8976
AgentTesla
bc1bfbbbff6ee2443b839aa6d4fcb32f4d0cfe9f395b534b4c46288c7a21aced
AgentTesla
d5bee1b408958ac6304491317c08dbce37299575d911136a5cdad1d9ca5ad793
AgentTesla
f87c14dd9506eaa1a586eab0cea8c5850dad70fab34a8041179bf6765daa98a0
AgentTesla
+ 1'785 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/231120-r5vyxahe2w/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Checks computer location settings
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
AgentTesla
Unpacked files
SH256 hash:
cc8e167709042e5e4da090ace2f2d4f6f5b427a9cc749b423247ad1821e1fdec
MD5 hash:
cac9d872a86249998b4ff2d2df14e9c4
SHA1 hash:
d64736422d4d49a26fd9b3bb8881c3b04d24b0de
Link:
https://www.unpac.me/results/9e126f0d-4743-41f6-9a53-99ea16464fe1/
SH256 hash:
d01f3dea3851602ba5a0586c60430d286adf6fcc7e17aab080601a66630606e5
MD5 hash:
579197d4f760148a9482d1ebde113259
SHA1 hash:
cf6924eb360c7e5a117323bebcb6ee02d2aec86d
Link:
https://www.unpac.me/results/9e126f0d-4743-41f6-9a53-99ea16464fe1/
SH256 hash:
b94be0f08227950951d639201319b78e378cbab4dc553a7bce006ae8c8bb91e4
MD5 hash:
c44b18d1c80a159d8dbd5addf08c57bd
SHA1 hash:
899f94a9504ec011830549f5315166cb17d10254
Detections:
AgentTesla
Create hunting rule
win_agent_tesla_g2
Create hunting rule
Agenttesla_type2
Create hunting rule
INDICATOR_EXE_Packed_GEN01
Create hunting rule
INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
Create hunting rule
Link:
https://www.unpac.me/results/9e126f0d-4743-41f6-9a53-99ea16464fe1/
Parent samples :
3d05623da2f66ee7073d88d4e4703551e779a136d0296f8d4073c52c93a469a0
9928ab1dc80e716442ef84dbf93c5141423990f6f011f7efe8626ebe76ba1a2e
1a3f9ac2abe62763028d1975825e0058620a4c1cd4cdc6ab9ace7b34f5a1eacd
147030ad2b34a1be1d22bf564cae6d2a858c37d9237d97e28050bf32dc8c5a40
b94be0f08227950951d639201319b78e378cbab4dc553a7bce006ae8c8bb91e4
SH256 hash:
80e51b38f8ec7e3f52f01a8f7a3b8af712bbf5c980a78f93053f42bdc95d0672
MD5 hash:
6ad839f8593b86aff3f350742c3169a0
SHA1 hash:
268eafebb6129ae7c1b08ef9644b9066f5055438
Link:
https://www.unpac.me/results/9e126f0d-4743-41f6-9a53-99ea16464fe1/
SH256 hash:
1a3f9ac2abe62763028d1975825e0058620a4c1cd4cdc6ab9ace7b34f5a1eacd
MD5 hash:
d312ec6c46fb78e9d03079e6d940802d
SHA1 hash:
c944f9989bfd8210ebf4f7cd66f84b4995f26988
Link:
https://www.unpac.me/results/9e126f0d-4743-41f6-9a53-99ea16464fe1/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/1a3f9ac2abe6/report/overview.html
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/1a3f9ac2abe62763028d1975825e0058620a4c1cd4cdc6ab9ace7b34f5a1eacd

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:AgentTeslaV3
Create hunting rule
Author:ditekshen
Description:AgentTeslaV3 infostealer payload
Rule name:INDICATOR_EXE_Packed_GEN01
Create hunting rule
Author:ditekSHen
Description:Detect packed .NET executables. Mostly AgentTeslaV4.
Rule name:INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
Author:ditekSHen
Description:Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many email and collaboration clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many file transfer clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing Windows vault credential objects. Observed in infostealers
Rule name:malware_Agenttesla_type2
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:Multifamily_RAT_Detection
Create hunting rule
Author:Lucas Acha (http://www.lukeacha.com)
Description:Generic Detection for multiple RAT families, PUPs, Packers and suspicious executables
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Malspam

AgentTesla

Executable exe 1a3f9ac2abe62763028d1975825e0058620a4c1cd4cdc6ab9ace7b34f5a1eacd

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/459340/

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