MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f9291efd2196c27700dae54a3524f517a197db931360ab87d2cba12ccb83c96b. 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: 10


Intelligence 10 IOCs YARA 14 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f9291efd2196c27700dae54a3524f517a197db931360ab87d2cba12ccb83c96b
SHA3-384 hash: 2fc81b0bb479b2e202a344c57b91b963f32171e5f112f1112efb4df5b9c67b11c6c7e1150b77916383c1896112cc846e
SHA1 hash: f2740c1ebe111127206eebe0dcdd85a8a897495c
MD5 hash: 11ff7ae90a30589cd3bcdbf662fad152
humanhash: delaware-massachusetts-carolina-low
File name:f9291efd2196c27700dae54a3524f517a197db931360ab87d2cba12ccb83c96b
Download: download sample
Signature AgentTesla
Create hunting rule
File size:2'546'688 bytes
First seen:2021-02-28 15:41:08 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 49152:Jc4l/MsppZsaStFDpcgA4do8bKo54clgLH+tkWJ0:JTSMZsaSvDpBAxcKHgkWJ0
TLSH E4C5120037ED4B6BE1EF6B75E0B241A0C372F662A52EDB8F6C4515EE1E42354C9207A7
Reporter c3rb3ru5d3d53c2
Tags:AgentTesla


Avatar
c3rb3ru5d3d53c
@c3rb3ru5d3d53c Live Hunt

Intelligence

File Origin
# of uploads :
1
# of downloads :
595
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
f9291efd2196c27700dae54a3524f517a197db931360ab87d2cba12ccb83c96b
Verdict:
Malicious activity
Analysis date:
2021-02-28 15:42:34 UTC
Tags:
evasion
Link:
https://app.any.run/tasks/4d21b8ad-2886-4cb8-9203-2597e588646b

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Avalon
Create hunting rule
Link:
https://www.capesandbox.com/analysis/120025/
Detection(s):
Win.Packed.GrandSteal-9783630-1
Create hunting rule

Win.Packed.Msilheracles-9835616-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Using the Windows Management Instrumentation requests
DNS request
Sending a custom TCP request
Sending a UDP request
Creating a file in the %AppData% subdirectories
Reading critical registry keys
Creating a file in the %temp% directory
Deleting a recently created file
Replacing files
Creating a window
Moving a file to the %AppData% subdirectory
Sending an HTTP GET request
Creating a file
Enabling the 'hidden' option for recently created files
Creating a process from a recently created file
Running batch commands
Launching a process
Stealing user critical data
Unauthorized injection to a recently created process
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.
Result
Threat name:
Echelon Stealer
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/621392
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Binary contains a suspicious time stamp
Contains functionality to capture screen (.Net source)
Detected VMProtect packer
Found many strings related to Crypto-Wallets (likely being stolen)
Machine Learning detection for dropped file
Machine Learning detection for sample
May check the online IP address of the machine
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queries memory information (via WMI often done to detect virtual machines)
Queries sensitive physical memory information (via WMI, Win32_PhysicalMemory, often done to detect virtual machines)
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Tries to harvest and steal browser information (history, passwords, etc)
Uses the Telegram API (likely for C&C communication)
Yara detected Costura Assembly Loader
Yara detected Echelon Stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 359688 Sample: yu4jf3ie5n Startdate: 28/02/2021 Architecture: WINDOWS Score: 100 33 Antivirus / Scanner detection for submitted sample 2->33 35 Multi AV Scanner detection for dropped file 2->35 37 Multi AV Scanner detection for submitted file 2->37 39 11 other signatures 2->39 7 yu4jf3ie5n.exe 14 83 2->7         started        process3 dnsIp4 27 ip-api.com 208.95.112.1, 49765, 80 TUT-ASUS United States 7->27 29 api.telegram.org 149.154.167.220, 443, 49766 TELEGRAMRU United Kingdom 7->29 31 4 other IPs or domains 7->31 21 C:\Users\user\AppData\Local\...\Decoder.exe, PE32 7->21 dropped 23 C:\ProgramData\Decoder.exe, PE32 7->23 dropped 25 C:\Users\user\AppData\...\yu4jf3ie5n.exe.log, ASCII 7->25 dropped 41 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 7->41 43 Queries sensitive physical memory information (via WMI, Win32_PhysicalMemory, often done to detect virtual machines) 7->43 45 Tries to harvest and steal browser information (history, passwords, etc) 7->45 47 Queries memory information (via WMI often done to detect virtual machines) 7->47 12 Decoder.exe 1 7->12         started        15 cmd.exe 1 7->15         started        file5 signatures6 process7 signatures8 49 Antivirus detection for dropped file 12->49 51 Multi AV Scanner detection for dropped file 12->51 53 Machine Learning detection for dropped file 12->53 17 conhost.exe 15->17         started        19 timeout.exe 1 15->19         started        process9
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f9291efd2196c27700dae54a3524f517a197db931360ab87d2cba12ccb83c96b/
Threat name:
ByteCode-MSIL.Trojan.Perseus
Create hunting rule
Status:
Malicious
First seen:
2021-02-28 15:42:10 UTC
AV detection:
36 of 48 (75.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=7eur57jbs3bhoag24vfdkjhvc6qzpw4tcnqkxb6szoqszs4dzfvq._file
Verdict:
malicious
Label(s):
asyncrat
Create hunting rule
Result
Malware family:
n/a
Score:
  8/10
Tags:
spyware vmprotect
Link:
https://tria.ge/reports/210228-etfkxbh13a/
Behaviour
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Looks up external IP address via web service
Reads user/profile data of web browsers
Executes dropped EXE
VMProtect packed file
Unpacked files
SH256 hash:
eef661cffbde254d5b9dba578e91f35cfc0a5fd4c6f25e959eef04ee948f1d5b
MD5 hash:
de81e7651c6e62b4c7195ac2e6befbc0
SHA1 hash:
1f2dc517abf4b8a789ac4ef9d8c7d1a7f486fe32
Link:
https://www.unpac.me/results/7f3337f6-be1f-4740-b03b-4f1e1948e7a5/
SH256 hash:
fbca223502f57d70fa7ac3c39e3874084c097e5c3a53fa0127949e751cbaf7d1
MD5 hash:
1c5ad55276ae88b2b8f6d543695bb095
SHA1 hash:
090446d52ef4d72801c49e035fb7030a6f5ef8ae
Link:
https://www.unpac.me/results/7f3337f6-be1f-4740-b03b-4f1e1948e7a5/
SH256 hash:
f9291efd2196c27700dae54a3524f517a197db931360ab87d2cba12ccb83c96b
MD5 hash:
11ff7ae90a30589cd3bcdbf662fad152
SHA1 hash:
f2740c1ebe111127206eebe0dcdd85a8a897495c
Link:
https://www.unpac.me/results/7f3337f6-be1f-4740-b03b-4f1e1948e7a5/
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/f9291efd2196c27700dae54a3524f517a197db931360ab87d2cba12ccb83c96b

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:Agenttesla_type2
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:Cryptocoin_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Steam in files like avemaria
Rule name:Email_stealer_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Email in files like avemaria
Rule name:INDICATOR_EXE_Packed_VMProtect
Create hunting rule
Author:ditekSHen
Description:Detects executables packed with VMProtect.
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_CryptoWallets
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many cryptocurrency mining wallets or apps. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_Referenfces_Messaging_Clients
Create hunting rule
Author:@ditekSHen
Description:Detects executables referencing many email and collaboration clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFu
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
Rule name:MALWARE_Win_Avalon
Create hunting rule
Author:ditekSHen
Description:Avalon infostealer payload
Rule name:MALWARE_Win_Echelon
Create hunting rule
Author:ditekSHen
Description:Echelon information stealer payload
Rule name:Select_from_enumeration
Create hunting rule
Author:James_inthe_box
Description:IP and port combo
Rule name:Stealer_word_in_memory
Create hunting rule
Author:James_inthe_box
Description:The actual word stealer in memory
Rule name:suspicious_packer_section
Create hunting rule
Author:@j0sm1
Description:The packer/protector section names/keywords
Reference:http://www.hexacorn.com/blog/2012/10/14/random-stats-from-1-2m-samples-pe-section-names/
Rule name:Telegram_stealer_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Telegram in files like avemaria

File information

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

  
Link
https://www.virustotal.com/gui/file/f9291efd2196c27700dae54a3524f517a197db931360ab87d2cba12ccb83c96b/details
  
Delivery method
Other
Cape
Cape
https://www.capesandbox.com/analysis/120025/

Comments