MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8f26ff4683a2d8c5dda6b8aff8c4d6b95ffe97c2432b413e0f8f0a0c16c96d32. 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 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8f26ff4683a2d8c5dda6b8aff8c4d6b95ffe97c2432b413e0f8f0a0c16c96d32
SHA3-384 hash: 4e21d00ef99e905090cbe3321bacd6d21b4f03b004f47e1f2ada8dd7bd3f76cb1c4554053e857e8ba0bea027d0303580
SHA1 hash: 63ecde53df066919f84d35926dbea4efc1610b00
MD5 hash: 4aa63ea35a6a68252888080722f2b403
humanhash: connecticut-enemy-twenty-apart
File name:TNT Original Invoice.scr
Download: download sample
Signature AgentTesla
Create hunting rule
File size:713'728 bytes
First seen:2024-04-29 13:54:24 UTC
Last seen:2024-04-29 14:31:34 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'737 x AgentTesla, 19'596 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:2+DbgRB778QekIKVkQv77DBpPMJ3aofMw98A/wR0Q+bnEimiQZWOWiP6ZtZbUqu9:vgRB1HbGHfMv0wR0vEJN6vpR+
Threatray 511 similar samples on MalwareBazaar
TLSH T1ECE4024272BCAF72EA7AABF1862498400BB7346B2931E74D1DD675DF1D71F008A10B5B
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 NDA0E
Tags:AgentTesla exe scr

Intelligence

File Origin
# of uploads :
2
# of downloads :
331
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
8f26ff4683a2d8c5dda6b8aff8c4d6b95ffe97c2432b413e0f8f0a0c16c96d32.exe
Verdict:
Malicious activity
Analysis date:
2024-04-29 14:08:10 UTC
Tags:
telegram exfiltration stealer agenttesla
Link:
https://app.any.run/tasks/e9ac056f-776d-4d4c-aa9f-8b36093c0bf8

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
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
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:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
cmd lolbin masquerade packed
Link:
https://www.filescan.io/uploads/662fa6bbd2fc149e4127a200/reports/45d07c21-06e0-4ef0-93fe-5f8308d2aee6/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/8f26ff4683a2d8c5dda6b8aff8c4d6b95ffe97c2432b413e0f8f0a0c16c96d32
Malware family:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/09da4c9c-4c56-4d4b-9150-27ed4b9431c7
Result
Threat name:
AgentTesla, PureLog Stealer
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1433412
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Adds a directory exclusion to Windows Defender
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Initial sample is a PE file and has a suspicious name
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 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
Uses the Telegram API (likely for C&C communication)
Yara detected AgentTesla
Yara detected AntiVM3
Yara detected Generic Downloader
Yara detected PureLog Stealer
Yara detected Telegram RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1433412 Sample: TNT Original Invoice.scr.exe Startdate: 29/04/2024 Architecture: WINDOWS Score: 100 42 api.telegram.org 2->42 46 Snort IDS alert for network traffic 2->46 48 Found malware configuration 2->48 50 Malicious sample detected (through community Yara rule) 2->50 54 17 other signatures 2->54 8 QKidaN.exe 5 2->8         started        11 TNT Original Invoice.scr.exe 7 2->11         started        signatures3 52 Uses the Telegram API (likely for C&C communication) 42->52 process4 file5 56 Multi AV Scanner detection for dropped file 8->56 58 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 8->58 60 Machine Learning detection for dropped file 8->60 14 QKidaN.exe 8->14         started        17 schtasks.exe 8->17         started        38 C:\Users\user\AppData\Roaming\QKidaN.exe, PE32 11->38 dropped 40 C:\Users\user\AppData\Local\Temp\tmpB58.tmp, XML 11->40 dropped 62 Adds a directory exclusion to Windows Defender 11->62 64 Injects a PE file into a foreign processes 11->64 19 TNT Original Invoice.scr.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 66 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 14->66 68 Tries to steal Mail credentials (via file / registry access) 14->68 70 Tries to harvest and steal ftp login credentials 14->70 72 Tries to harvest and steal browser information (history, passwords, etc) 14->72 28 conhost.exe 17->28         started        44 api.telegram.org 149.154.167.220, 443, 49734, 49736 TELEGRAMRU United Kingdom 19->44 74 Installs a global keyboard hook 19->74 76 Loading BitLocker PowerShell Module 22->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/8f26ff4683a2d8c5dda6b8aff8c4d6b95ffe97c2432b413e0f8f0a0c16c96d32
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/8f26ff4683a2d8c5dda6b8aff8c4d6b95ffe97c2432b413e0f8f0a0c16c96d32/
Threat name:
ByteCode-MSIL.Trojan.Taskun
Create hunting rule
Status:
Malicious
First seen:
2024-04-29 06:22:52 UTC
File Type:
PE (.Net Exe)
Extracted files:
13
AV detection:
16 of 24 (66.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=r4tp6rudulmmlxngxcx7rrgwxfp75f6cimvucpqpr4fayfwjnuza._file
Verdict:
malicious
Label(s):
agenttesla_v4
Create hunting rule
agenttesla
Create hunting rule
Similar samples:
18f44886b9280533487b58a1feab7a3ebb463718417109643467315250b460b3
AgentTesla
36847d6a88e758a4d823a6e100746c1f505678f8c286ddc2e942c2329ccc36ee
AgentTesla
433327373b99264a0a5f11194a3722e1a53c832e837f0eab264f89306f9e42cb
AgentTesla
e48b7b9ba50d500f569024126a2ff8981db13525ff378ea2151ce8d6b7e4e452
AgentTesla
+ 501 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/240429-q74s6ace8v/
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
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
AgentTesla
Malware Config
C2 Extraction:
https://api.telegram.org/bot5239412158:AAHXn8rC3uvBHy_kv77GtIcxcuvBuXcKD_8/
Unpacked files
SH256 hash:
e52a4c135da3b9c0a03043d8d7beb85d183403078c1a263d5dabbf3de7a97219
MD5 hash:
42faeaf3e3dd7d6d186fe1b356f9f247
SHA1 hash:
a8e4df04c4f0e6a060b51ee90b5e7e7e705c9f59
Link:
https://www.unpac.me/results/ea8d2110-e800-451d-97b1-ea52d430302b/
SH256 hash:
1796e6fba2994506779b31264e442dfba26e4fb598194710b42a53c654d59ad8
MD5 hash:
15c8a71c256f3305717e28fe4368ae16
SHA1 hash:
a61ffb9b74071524f1d8ad6d800f350b96ae3400
Detections:
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/ea8d2110-e800-451d-97b1-ea52d430302b/
Parent samples :
8f26ff4683a2d8c5dda6b8aff8c4d6b95ffe97c2432b413e0f8f0a0c16c96d32
605ccfa010e2d945154cfb395a6a4855d00b710f447dbad889eb0415bb9710af
e0c8b02870ad1dbca34a9167a4ed5316e8a3cba0d0872e48ee2f77642c1b70a5
SH256 hash:
4909093c1045073940daf73778f88ce3e5d4dcbc0d69e3498ad4672c2e699013
MD5 hash:
28b43a10958caef0465f7b93be0a0d77
SHA1 hash:
9c85c1cb7f6face0a6c8d0a2d2314a99092d6554
Link:
https://www.unpac.me/results/ea8d2110-e800-451d-97b1-ea52d430302b/
SH256 hash:
aed4a976a528f9472b707daae3bc4e722978bce7f0ac54b72cf1cfcd5981a5d8
MD5 hash:
9e4aea62ee76efb9013e6440afd8ffe6
SHA1 hash:
8d597f109698e7c74da0f20815fc4da575ce29c4
Link:
https://www.unpac.me/results/ea8d2110-e800-451d-97b1-ea52d430302b/
SH256 hash:
8f26ff4683a2d8c5dda6b8aff8c4d6b95ffe97c2432b413e0f8f0a0c16c96d32
MD5 hash:
4aa63ea35a6a68252888080722f2b403
SHA1 hash:
63ecde53df066919f84d35926dbea4efc1610b00
Link:
https://www.unpac.me/results/ea8d2110-e800-451d-97b1-ea52d430302b/
Malware family:
AgentTesla
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/8f26ff4683a2/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/8f26ff4683a2d8c5dda6b8aff8c4d6b95ffe97c2432b413e0f8f0a0c16c96d32

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_DIFF_Common_Strings_01
Create hunting rule
Author:schmidtsz
Description:Identify partial Agent Tesla strings
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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