MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4ff2b35479cd45520aa714643c2dcb649e7d73caf9a6ab1c83d73ec439b6121b. 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 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4ff2b35479cd45520aa714643c2dcb649e7d73caf9a6ab1c83d73ec439b6121b
SHA3-384 hash: a282b9c3b123a7540f2450967664653bb0b072bb059be0d7da2cee0c7ad00f49055360f1402b21c5c5c59701fd729228
SHA1 hash: ce0c290159d5514bebea940dd13fa3e5ba8e4616
MD5 hash: 2f65ec7ffd868340d75e0a4b35eab6a7
humanhash: wolfram-india-potato-cola
File name:Overdue Invoice.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:784'896 bytes
First seen:2024-02-21 13:26:44 UTC
Last seen:2024-02-21 15:22:52 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 12288:IhxkDbMZXW/3oQHbLLILKMtv4cZqL43mEut2meOudQ58fATnZEqZNmV7+hYqhTJ5:p/MZG/3oE/IuMFjsLLYOH8fJ9Va5VJ5
Threatray 5'694 similar samples on MalwareBazaar
TLSH T15FF4121137BC0B2BE6EE5AF91430649517F6F6257A03FBAC0DCD64EA05D6F821606B83
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) (4504/4/1)
File icon (PE):PE icon
dhash icon 1ce190f4e0663807 (4 x AgentTesla, 2 x Formbook, 1 x njrat)
Reporter abuse_ch
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
352
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
4ff2b35479cd45520aa714643c2dcb649e7d73caf9a6ab1c83d73ec439b6121b.exe
Verdict:
Malicious activity
Analysis date:
2024-02-21 13:53:49 UTC
Tags:
agenttesla stealer
Link:
https://app.any.run/tasks/64e8741b-0d88-4056-9fe3-986a3b0fe77b

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/477304/
Detection(s):
Porcupine.Malware.58887.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
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
DNS request
Connection attempt
Sending a custom TCP request
Reading critical registry keys
Sending an HTTP GET request
Setting a keyboard event handler
Stealing user critical data
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
masquerade packed
Link:
https://www.filescan.io/uploads/65d5fa30c5e1a083fbf3f539/reports/1f37fdc3-251a-4410-9725-f45684442ff1/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/4ff2b35479cd45520aa714643c2dcb649e7d73caf9a6ab1c83d73ec439b6121b
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/fe0269db-4952-48e1-8ec3-6cc60b70ef26
Result
Threat name:
AgentTesla, PureLog Stealer
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1396177
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
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
Contains functionality to log keystrokes (.Net Source)
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Installs a global keyboard hook
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
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
Yara detected PureLog Stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1396177 Sample: Overdue Invoice.exe Startdate: 21/02/2024 Architecture: WINDOWS Score: 100 40 maximusstorage.in 2->40 42 mail.maximusstorage.in 2->42 44 api.ipify.org 2->44 50 Malicious sample detected (through community Yara rule) 2->50 52 Antivirus detection for URL or domain 2->52 54 Antivirus / Scanner detection for submitted sample 2->54 56 15 other signatures 2->56 8 WBykfzWWOye.exe 5 2->8         started        11 Overdue Invoice.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 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 8->62 66 2 other signatures 8->66 14 WBykfzWWOye.exe 8->14         started        17 schtasks.exe 1 8->17         started        19 dllhost.exe 8->19         started        36 C:\Users\user\AppData\...\WBykfzWWOye.exe, PE32 11->36 dropped 38 C:\Users\user\AppData\Local\Temp\tmp383.tmp, XML 11->38 dropped 64 Adds a directory exclusion to Windows Defender 11->64 21 Overdue Invoice.exe 15 2 11->21         started        24 powershell.exe 23 11->24         started        26 schtasks.exe 1 11->26         started        signatures6 process7 dnsIp8 68 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 14->68 70 Tries to steal Mail credentials (via file / registry access) 14->70 72 Tries to harvest and steal browser information (history, passwords, etc) 14->72 28 conhost.exe 17->28         started        46 maximusstorage.in 116.206.105.135, 49717, 49719, 49731 PUBLIC-DOMAIN-REGISTRYUS Seychelles 21->46 48 api.ipify.org 104.26.12.205, 443, 49714, 49718 CLOUDFLARENETUS United States 21->48 74 Installs a global keyboard hook 21->74 30 WmiPrvSE.exe 24->30         started        32 conhost.exe 24->32         started        34 conhost.exe 26->34         started        signatures9 process10
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/4ff2b35479cd45520aa714643c2dcb649e7d73caf9a6ab1c83d73ec439b6121b
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4ff2b35479cd45520aa714643c2dcb649e7d73caf9a6ab1c83d73ec439b6121b/
Threat name:
ByteCode-MSIL.Trojan.SnakeKeyLogger
Create hunting rule
Status:
Malicious
First seen:
2024-02-21 00:19:10 UTC
File Type:
PE (.Net Exe)
Extracted files:
12
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=j7zlgvdzzvcvecvhcrsdylolmsph246k7gtkwhed247mionwcinq._file
Verdict:
malicious
Label(s):
agenttesla_v4
Create hunting rule
agenttesla
Create hunting rule
Similar samples:
4c3c1031279a42eb5955cccfd5a006235cd27b909503d10ad4eb1c10dc5cebfe
AgentTesla
4ff2b35479cd45520aa714643c2dcb649e7d73caf9a6ab1c83d73ec439b6121b
AgentTesla
6cb36f0f7e413667ee3a0fbc42e6c95e08853e1025f8382270e63e91dad0a0fb
AgentTesla
b8bbb8aa57e575b7025d8b8cc36df03bc84a4a091a0c008a684a96b4e173b511
AgentTesla
c5cd096e51840ab5ceb8a29c7efedee7ae3f16562bdd4779b5b1bd44dfc784e4
AgentTesla
d85d393aa910619b2b41bdadebdf519025be14bebcb8a3d63a3d0c90b1b5d626
AgentTesla
+ 5'684 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger spyware stealer trojan
Link:
https://tria.ge/reports/240221-qp589sfh2v/
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 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:
72638f4b30cc9dab51d31216991957bf1cd118b8a8743227b3e8f9c4805f7628
MD5 hash:
2a8240bba06e832ee5d136a0a7e5b5b9
SHA1 hash:
de49d9b33004a4a622a4279b3ee2b3e3e5cd012b
Link:
https://www.unpac.me/results/02668fe2-ab46-4976-b5dc-6303f21fedb2/
SH256 hash:
277c8f7fae4dba22a63bc6f94de024a55cb820a53532846dd69f9a020ba3a0f7
MD5 hash:
3cd2a46d0903bedae129c5b6fa70c5a0
SHA1 hash:
c6630b360196f1a6031d348a1423b70edc3bb905
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/02668fe2-ab46-4976-b5dc-6303f21fedb2/
Parent samples :
b8bbb8aa57e575b7025d8b8cc36df03bc84a4a091a0c008a684a96b4e173b511
4ff2b35479cd45520aa714643c2dcb649e7d73caf9a6ab1c83d73ec439b6121b
SH256 hash:
ec592062c41d26d7046ab135fbabaf80e69900ba940ca654261cda17109f8769
MD5 hash:
09f7fb78314d30bf7c69d72caa9da978
SHA1 hash:
5536e0f86fe6e36f11e5ba03a8f559675dd82f30
Link:
https://www.unpac.me/results/02668fe2-ab46-4976-b5dc-6303f21fedb2/
SH256 hash:
42e5bbee4b498550f505c1232326adbf9d5d23c7e90174eb142b4963b879fe7b
MD5 hash:
100a8095e042378d2c227eb0ff37b6d4
SHA1 hash:
32c4a6457d7c01e9e135c3750d571114bc0ef3a0
Link:
https://www.unpac.me/results/02668fe2-ab46-4976-b5dc-6303f21fedb2/
SH256 hash:
f8491927c5648b58e8dc9e63d8a0b3a518269dd1433a48bd0b5bea41105d0fe0
MD5 hash:
dbdccce535b837674a9844be51f2d87b
SHA1 hash:
0367030a445be6f5d628d627c9230fbc4d71574e
Link:
https://www.unpac.me/results/02668fe2-ab46-4976-b5dc-6303f21fedb2/
SH256 hash:
4ff2b35479cd45520aa714643c2dcb649e7d73caf9a6ab1c83d73ec439b6121b
MD5 hash:
2f65ec7ffd868340d75e0a4b35eab6a7
SHA1 hash:
ce0c290159d5514bebea940dd13fa3e5ba8e4616
Link:
https://www.unpac.me/results/02668fe2-ab46-4976-b5dc-6303f21fedb2/
Malware family:
AgentTesla
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/4ff2b35479cd/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.93
Link:
https://yomi.yoroi.company/submissions/4ff2b35479cd45520aa714643c2dcb649e7d73caf9a6ab1c83d73ec439b6121b

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: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 4ff2b35479cd45520aa714643c2dcb649e7d73caf9a6ab1c83d73ec439b6121b

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/477304/

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