MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f5a1fca85008da2247fafe3846709143d53d62ee6d6b156d94ee5d03414ae28f. 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 3 File information Comments
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SHA256 hash: f5a1fca85008da2247fafe3846709143d53d62ee6d6b156d94ee5d03414ae28f
SHA3-384 hash: 081e9d1d50fd6b068bb89fe69ff897966bad886e69eb9d33f6925c70f33e7a7e10280aab9fb6db9c9a60c57e0bf8bc18
SHA1 hash: 7b2f70bc295a7232a0391c2b614c9ca286e96d16
MD5 hash: dc9e261e1e8cb99c8258deee26000c6a
humanhash: nuts-november-bravo-fanta
File name:Cotización.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:966'144 bytes
First seen:2024-06-04 06:06:55 UTC
Last seen:2024-06-06 15:45:13 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'658 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 24576:ldNtEVToATcCEo7Dtw9lUHN7mzdW/9YQLZZc:ldwToicFo7Di9l2N74dwh
TLSH T11425CF05FBB47986D9FD0A76A09254090BB1A905711FE39E0CE229CB1FE6B16CB4371F
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
File icon (PE):PE icon
dhash icon cca6032939292d92 (16 x AgentTesla, 8 x Formbook, 2 x Loki)
Reporter abuse_ch
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
4
# of downloads :
348
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
f5a1fca85008da2247fafe3846709143d53d62ee6d6b156d94ee5d03414ae28f.exe
Verdict:
Malicious activity
Analysis date:
2024-06-04 06:21:22 UTC
Tags:
evasion agenttesla stealer exfiltration smtp
Link:
https://app.any.run/tasks/869cf029-3948-4d92-89b4-266d73e8b4db

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.CrypterX-gen.11628.25200.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=665ec088ab69e84d6a2f54e8win7simulatehigh_evasion
Tags:
Banker Encryption Execution Network Kryptik Dexter
Result
Verdict:
Malware
Maliciousness:

Behaviour
Setting a keyboard event handler
Сreating synchronization primitives
Searching for synchronization primitives
Creating a window
Creating a process with a hidden window
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a file in the %temp% directory
Launching a process
Creating a process from a recently created file
Creating a file
Using the Windows Management Instrumentation requests
DNS request
Connection attempt
Sending a custom TCP request
Sending an HTTP GET request
Reading critical registry keys
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Stealing user critical data
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/f5a1fca85008da2247fafe3846709143d53d62ee6d6b156d94ee5d03414ae28f
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/faf88de0-580b-448a-98c7-4840870323d3
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1451533
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Adds a directory exclusion to Windows Defender
AI detected suspicious sample
Check if machine is in data center or colocation facility
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Injects a PE file into a foreign processes
Installs a global keyboard hook
Loading BitLocker PowerShell Module
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: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Scheduled temp file as task from temp location
Snort IDS alert for network traffic
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
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 / 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: 1451533 Sample: Cotizaci#U00f3n.exe Startdate: 04/06/2024 Architecture: WINDOWS Score: 100 42 mail.floormelody.com.sg 2->42 44 ip-api.com 2->44 46 api.ipify.org 2->46 54 Snort IDS alert for network traffic 2->54 56 Found malware configuration 2->56 58 Malicious sample detected (through community Yara rule) 2->58 60 12 other signatures 2->60 8 Cotizaci#U00f3n.exe 7 2->8         started        12 sJqGqPBuvadK.exe 5 2->12         started        signatures3 process4 file5 38 C:\Users\user\AppData\...\sJqGqPBuvadK.exe, PE32 8->38 dropped 40 C:\Users\user\AppData\Local\...\tmp5BA3.tmp, XML 8->40 dropped 62 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 8->62 64 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 8->64 66 Uses schtasks.exe or at.exe to add and modify task schedules 8->66 74 2 other signatures 8->74 14 Cotizaci#U00f3n.exe 14 2 8->14         started        18 powershell.exe 23 8->18         started        20 powershell.exe 23 8->20         started        22 schtasks.exe 1 8->22         started        68 Multi AV Scanner detection for dropped file 12->68 70 Machine Learning detection for dropped file 12->70 72 Injects a PE file into a foreign processes 12->72 24 sJqGqPBuvadK.exe 12->24         started        26 schtasks.exe 12->26         started        signatures6 process7 dnsIp8 48 mail.floormelody.com.sg 101.100.211.111, 49738, 49741, 587 VODIEN-AS-AP-LOC2VodienInternetSolutionsPteLtdSG Singapore 14->48 50 ip-api.com 208.95.112.1, 49735, 49740, 80 TUT-ASUS United States 14->50 52 api.ipify.org 104.26.12.205, 443, 49734, 49739 CLOUDFLARENETUS United States 14->52 76 Installs a global keyboard hook 14->76 78 Loading BitLocker PowerShell Module 18->78 28 conhost.exe 18->28         started        30 WmiPrvSE.exe 18->30         started        32 conhost.exe 20->32         started        34 conhost.exe 22->34         started        80 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 24->80 82 Tries to steal Mail credentials (via file / registry access) 24->82 84 Tries to harvest and steal ftp login credentials 24->84 86 Tries to harvest and steal browser information (history, passwords, etc) 24->86 36 conhost.exe 26->36         started        signatures9 process10
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/f5a1fca85008da2247fafe3846709143d53d62ee6d6b156d94ee5d03414ae28f
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/f5a1fca85008da2247fafe3846709143d53d62ee6d6b156d94ee5d03414ae28f/
Threat name:
Win32.Spyware.Negasteal
Create hunting rule
Status:
Malicious
First seen:
2024-06-03 12:25:26 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
21 of 24 (87.50%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=6wq7zkcqbdncer727y4em4eripkt2yxonvvrk3mu5zoqgqkk4khq._file
Verdict:
malicious
Label(s):
agenttesla_v4
Create hunting rule
agenttesla
Create hunting rule
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla execution keylogger spyware stealer trojan
Link:
https://tria.ge/reports/240604-gvbr6sff4y/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Looks up external IP address via web service
Checks computer location settings
Reads WinSCP keys stored on the system
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Command and Scripting Interpreter: PowerShell
AgentTesla
Unpacked files
SH256 hash:
02445e4d49d491b67a357d239d1da52dfee5d8d3251b2f22db1456c38fb93887
MD5 hash:
9aed783ac71ca2051e8835c00df18369
SHA1 hash:
48de2ccc0ab1822d61738d91b59dba2ce220be15
Detections:
AgentTesla
Create hunting rule
win_agent_tesla_g2
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
Create hunting rule
Agenttesla_type2
Create hunting rule
INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
Create hunting rule
INDICATOR_EXE_Packed_GEN01
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
Create hunting rule
Link:
https://www.unpac.me/results/5979500f-deda-4a92-8fa0-7bcaa70a6ff9/
SH256 hash:
478ac8ffe3389eb64abc59bf23d0db124101c15486d70eb21a72597310fde5ac
MD5 hash:
9a4343351aaefa4ef7a6129aa78f6682
SHA1 hash:
3b304f8bc8688e7390b4f5e4414fe12d80d1f2a9
Link:
https://www.unpac.me/results/5979500f-deda-4a92-8fa0-7bcaa70a6ff9/
SH256 hash:
74b19f82d417c43b698d67803da6ab2719ba2bea8f83f5145346c7d3b583c57a
MD5 hash:
7560f8013744a09e9938b2cc016d4247
SHA1 hash:
10a7ffe0bd3f897334812afb0175fd5b1fd6c685
Link:
https://www.unpac.me/results/5979500f-deda-4a92-8fa0-7bcaa70a6ff9/
SH256 hash:
55729815a6ad44739f2af0c7a7096f4153fcc109d440f23d0d609065e96b625e
MD5 hash:
82a8fdab718d8d9c1c82472293a72e3d
SHA1 hash:
042c0d08baf858128d32c01476380e142891456e
Link:
https://www.unpac.me/results/5979500f-deda-4a92-8fa0-7bcaa70a6ff9/
SH256 hash:
f5a1fca85008da2247fafe3846709143d53d62ee6d6b156d94ee5d03414ae28f
MD5 hash:
dc9e261e1e8cb99c8258deee26000c6a
SHA1 hash:
7b2f70bc295a7232a0391c2b614c9ca286e96d16
Link:
https://www.unpac.me/results/5979500f-deda-4a92-8fa0-7bcaa70a6ff9/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/f5a1fca85008/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/f5a1fca85008da2247fafe3846709143d53d62ee6d6b156d94ee5d03414ae28f

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:NET
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.

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high

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