MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5f439e4e2bf01c647d8a2a425e0dfb03f3b6234f13de2cc6015f7c57eaa40290. 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: 18


Intelligence 18 IOCs YARA 15 File information Comments
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SHA256 hash: 5f439e4e2bf01c647d8a2a425e0dfb03f3b6234f13de2cc6015f7c57eaa40290
SHA3-384 hash: f39d43b77eb71638e13fa1d461c0006bc0a2529d560d274731452b86b6c2e2146e12b4c7ff5d83b6999aec2446584d7f
SHA1 hash: 323a8cabc0753ecb2a01849a85bb70c07e9ce022
MD5 hash: 37fc288dede0b36f18acb1adc6e99f5f
humanhash: kansas-don-autumn-oven
File name:rRemittanceadvicefor20240222.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:752'128 bytes
First seen:2024-02-22 12:34:46 UTC
Last seen:2024-02-22 14:22:24 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'748 x AgentTesla, 19'643 x Formbook, 12'245 x SnakeKeylogger)
ssdeep 12288:n2nURl5Ujd53LlvimgWAXUScXDh+MXo9jX5g47JATthqRA8kOXUw6gvDBfVu:n2nUpKwmgWAXcXvY9jXiCkhqDXmgvFfV
TLSH T1CEF4129833ECAF3AF07FA3FA14A0604503B4B57B6476EB485EC650CA25A2F54CE45B53
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)
Reporter FXOLabs
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
322
Origin country :
BR BR
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
5f439e4e2bf01c647d8a2a425e0dfb03f3b6234f13de2cc6015f7c57eaa40290.exe
Verdict:
Malicious activity
Analysis date:
2024-02-22 12:46:25 UTC
Tags:
agenttesla stealer
Link:
https://app.any.run/tasks/7ebe36c0-a7f9-4f96-80b7-780a39376eff

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
AgentTesla
Create hunting rule
Link:
https://www.capesandbox.com/analysis/477411/
Detection(s):
SecuriteInfo.com.Win32.PWSX-gen.3383.13047.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
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 file
Using the Windows Management Instrumentation requests
DNS request
Connection attempt
Sending a custom TCP request
Reading critical registry keys
Sending an HTTP GET request
Stealing user critical data
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/65d73f88781f5716464026b6/reports/520e9b80-4ada-4027-b6d8-74aff5245f2b/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/5f439e4e2bf01c647d8a2a425e0dfb03f3b6234f13de2cc6015f7c57eaa40290
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
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/c8a4cdd9-de51-45e3-9fad-6c7d05e3c075
Result
Threat name:
AgentTesla, PureLog Stealer
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1396929
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
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 domain / URL
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: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
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
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected AntiVM3
Yara detected Generic Downloader
Yara detected PureLog Stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1396929 Sample: rRemittanceadvicefor20240222.exe Startdate: 22/02/2024 Architecture: WINDOWS Score: 100 42 mail.wasstech.com 2->42 44 api.ipify.org 2->44 50 Multi AV Scanner detection for domain / URL 2->50 52 Found malware configuration 2->52 54 Malicious sample detected (through community Yara rule) 2->54 56 14 other signatures 2->56 8 cbNBsR.exe 5 2->8         started        11 rRemittanceadvicefor20240222.exe 7 2->11         started        signatures3 process4 file5 58 Antivirus detection for dropped file 8->58 60 Multi AV Scanner detection for dropped file 8->60 62 Machine Learning detection for dropped file 8->62 68 3 other signatures 8->68 14 RegSvcs.exe 8->14         started        17 schtasks.exe 8->17         started        38 C:\Users\user\AppData\Roaming\cbNBsR.exe, PE32 11->38 dropped 40 C:\Users\user\AppData\Local\...\tmp25CE.tmp, XML 11->40 dropped 64 Uses schtasks.exe or at.exe to add and modify task schedules 11->64 66 Adds a directory exclusion to Windows Defender 11->66 19 RegSvcs.exe 15 2 11->19         started        22 powershell.exe 23 11->22         started        24 powershell.exe 23 11->24         started        26 schtasks.exe 1 11->26         started        signatures6 process7 dnsIp8 70 Tries to harvest and steal browser information (history, passwords, etc) 14->70 28 conhost.exe 17->28         started        46 mail.wasstech.com 204.93.196.181, 49711, 49715, 587 SERVERCENTRALUS United States 19->46 48 api.ipify.org 172.67.74.152, 443, 49710, 49714 CLOUDFLARENETUS United States 19->48 72 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 19->72 74 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 19->74 76 Tries to steal Mail credentials (via file / registry access) 19->76 30 conhost.exe 22->30         started        32 WmiPrvSE.exe 22->32         started        34 conhost.exe 24->34         started        36 conhost.exe 26->36         started        signatures9 process10
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/5f439e4e2bf01c647d8a2a425e0dfb03f3b6234f13de2cc6015f7c57eaa40290
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/5f439e4e2bf01c647d8a2a425e0dfb03f3b6234f13de2cc6015f7c57eaa40290/
Threat name:
Win32.Spyware.Negasteal
Create hunting rule
Status:
Malicious
First seen:
2024-02-22 12:22:53 UTC
File Type:
PE (.Net Exe)
Extracted files:
12
AV detection:
18 of 24 (75.00%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=l5bz4trl6aogi7mkfjbf4dp3apz3mi2pcppczrqbl56fp2veakia._file
Verdict:
malicious
Label(s):
agenttesla_v4
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agenttesla
Create hunting rule
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger spyware stealer trojan
Link:
https://tria.ge/reports/240222-psb9xshe64/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Looks up external IP address via web service
Checks computer location settings
AgentTesla
Unpacked files
SH256 hash:
742b19fe7ebb06d9f0e36de5a2034836589f61feb0140eab7261dcdae9c0867f
MD5 hash:
311d5078eb3ae39116ae72c192e3c5a4
SHA1 hash:
91d2dcedecf54f5be245264255348809f2e5cc70
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_EXE_Packed_GEN01
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
Create hunting rule
Link:
https://www.unpac.me/results/dd47d84e-118e-4e9e-a2e6-249bd29536a0/
Parent samples :
1600a2b591727b5873a37ba32b54efd6b6c0adfe7389b6dff095871441d143b6
e0a542a41badfacb07736f419450f252f15e42b969385e99ad0b2c41487cc476
742b19fe7ebb06d9f0e36de5a2034836589f61feb0140eab7261dcdae9c0867f
23845e3aded21fad8fe8da4f28db1324a373cf8456bbc9fc329f0f1b0ecccb80
5f439e4e2bf01c647d8a2a425e0dfb03f3b6234f13de2cc6015f7c57eaa40290
4d268e7f0588bccd2fe6cf59ea9c80c0692739f4dd5443047d467ca0f3fefb19
SH256 hash:
d70e4033db330c128a0fed627f2bb0faee896f86112e6f4170adefc9a580dff1
MD5 hash:
ec2a8446d2bb3f4a4bd67c0fab01fd3d
SHA1 hash:
72adabdb9c297f0cad6708f40b90f90c894e387c
Link:
https://www.unpac.me/results/dd47d84e-118e-4e9e-a2e6-249bd29536a0/
SH256 hash:
fe666553645ce1edfc395d0a4ba72fb281377d72cf89bcbbe1f43012b4f04246
MD5 hash:
cc0b3d31c7162553868f73e38c9c6fa8
SHA1 hash:
6d3e1237dbbb836afcb0203f054a89c585ebaca1
Link:
https://www.unpac.me/results/dd47d84e-118e-4e9e-a2e6-249bd29536a0/
SH256 hash:
ec592062c41d26d7046ab135fbabaf80e69900ba940ca654261cda17109f8769
MD5 hash:
09f7fb78314d30bf7c69d72caa9da978
SHA1 hash:
5536e0f86fe6e36f11e5ba03a8f559675dd82f30
Link:
https://www.unpac.me/results/dd47d84e-118e-4e9e-a2e6-249bd29536a0/
SH256 hash:
d0b36bdee092a6149086a790d48da1f76e9213c8f533ee94f07e7587df6ec21d
MD5 hash:
2424788161a68459258d21bbb3efa995
SHA1 hash:
1497586a24b93523cc1763d56911555863ae872e
Link:
https://www.unpac.me/results/dd47d84e-118e-4e9e-a2e6-249bd29536a0/
SH256 hash:
5f439e4e2bf01c647d8a2a425e0dfb03f3b6234f13de2cc6015f7c57eaa40290
MD5 hash:
37fc288dede0b36f18acb1adc6e99f5f
SHA1 hash:
323a8cabc0753ecb2a01849a85bb70c07e9ce022
Link:
https://www.unpac.me/results/dd47d84e-118e-4e9e-a2e6-249bd29536a0/
Malware family:
AgentTesla
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/5f439e4e2bf0/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/5f439e4e2bf01c647d8a2a425e0dfb03f3b6234f13de2cc6015f7c57eaa40290

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: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
Rule name:Windows_Generic_Threat_9f4a80b2
Create hunting rule
Author:Elastic Security
Rule name:Windows_Trojan_AgentTesla_ebf431a8
Create hunting rule
Author:Elastic Security
Reference:https://www.elastic.co/security-labs/attack-chain-leads-to-xworm-and-agenttesla

File information

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

Malspam

AgentTesla

Executable exe 5f439e4e2bf01c647d8a2a425e0dfb03f3b6234f13de2cc6015f7c57eaa40290

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/477411/

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