MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c3135de6c77cb9f767977797316659bcc043ca15cca999599c92cd0d7f515154. 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: 19


Intelligence 19 IOCs YARA 18 File information Comments
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SHA256 hash: c3135de6c77cb9f767977797316659bcc043ca15cca999599c92cd0d7f515154
SHA3-384 hash: c4709242f654d119d5acd0b4d4a15dfac8b203d7de7b02a64220e82fbc43090faa6f095bf75a0f657a6f71f135414c78
SHA1 hash: cf03154a48369bbe6bc50c8483df5a46668b160d
MD5 hash: c8d9afec59fb4b38c9fbe3bb1a2a5937
humanhash: north-ohio-wolfram-uncle
File name:Product Sample 76438.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:809'984 bytes
First seen:2024-06-10 10:46:04 UTC
Last seen:2024-06-10 11:33:41 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'205 x SnakeKeylogger)
ssdeep 24576:yx7C3c6lJC67UFlPgs857LZedc8TVJVWrRPoW0pI4TgtY+VTIC:yBxFlPgn7LUdVfsNgW0G4TgtY+VTI
Threatray 1'836 similar samples on MalwareBazaar
TLSH T10F05121522789F46C67653FEE360A2206F34707B6022EAD9BDC5A1EF5E25B08019DF1F
TrID 61.9% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.1% (.SCR) Windows screen saver (13097/50/3)
8.9% (.EXE) Win64 Executable (generic) (10523/12/4)
5.5% (.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 64e4a4a4e4e464a4 (10 x AgentTesla, 8 x Formbook, 1 x Rhadamanthys)
Reporter adrian__luca
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
345
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
c3135de6c77cb9f767977797316659bcc043ca15cca999599c92cd0d7f515154.exe
Verdict:
Malicious activity
Analysis date:
2024-06-10 11:01:25 UTC
Tags:
evasion agenttesla stealer
Link:
https://app.any.run/tasks/d5090b1d-449c-4940-a2b7-9823dfde311f

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.2511.10179.30915.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6667077b5c0e232c1ff0276ewin7simulatehigh_evasion
Tags:
Banker Encryption Execution Generic Network Msil Dexter
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a process with a hidden window
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
Creating a file in the %AppData% subdirectories
Reading critical registry keys
Forced shutdown of a system process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Stealing user critical data
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/6666d9a921581a92819bf6a5/reports/61abbfe5-91ac-451f-bd40-b3bf382d6be7/overview
Verdict:
Malicious
Labled as:
IL:Trojan.MSILZilla
Link:
https://www.hybrid-analysis.com/sample/c3135de6c77cb9f767977797316659bcc043ca15cca999599c92cd0d7f515154
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/a6725d66-332e-4126-86c7-be2a978d92d6
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
spre.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1454496
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
Allocates memory in foreign processes
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
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: MSBuild connects to smtp port
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Scheduled temp file as task from temp location
Sigma detected: Silenttrinity Stager Msbuild Activity
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
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected AntiVM3
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1454496 Sample: Product Sample 76438.exe Startdate: 10/06/2024 Architecture: WINDOWS Score: 100 55 us2.smtp.mailhostbox.com 2->55 57 api.ipify.org 2->57 59 3 other IPs or domains 2->59 65 Found malware configuration 2->65 67 Malicious sample detected (through community Yara rule) 2->67 69 Sigma detected: Scheduled temp file as task from temp location 2->69 71 14 other signatures 2->71 8 Product Sample 76438.exe 7 2->8         started        12 HXJRxdSeDm.exe 5 2->12         started        14 mpTrle.exe 2->14         started        16 mpTrle.exe 2->16         started        signatures3 process4 file5 47 C:\Users\user\AppData\...\HXJRxdSeDm.exe, PE32 8->47 dropped 49 C:\Users\...\HXJRxdSeDm.exe:Zone.Identifier, ASCII 8->49 dropped 51 C:\Users\user\AppData\Local\...\tmp1F21.tmp, XML 8->51 dropped 53 C:\Users\...\Product Sample 76438.exe.log, ASCII 8->53 dropped 87 Writes to foreign memory regions 8->87 89 Allocates memory in foreign processes 8->89 91 Adds a directory exclusion to Windows Defender 8->91 18 MSBuild.exe 15 4 8->18         started        23 powershell.exe 23 8->23         started        25 schtasks.exe 1 8->25         started        93 Multi AV Scanner detection for dropped file 12->93 95 Machine Learning detection for dropped file 12->95 97 Injects a PE file into a foreign processes 12->97 27 MSBuild.exe 3 12->27         started        29 schtasks.exe 1 12->29         started        31 MSBuild.exe 12->31         started        33 conhost.exe 14->33         started        35 conhost.exe 16->35         started        signatures6 process7 dnsIp8 61 us2.smtp.mailhostbox.com 208.91.199.223, 49712, 49716, 587 PUBLIC-DOMAIN-REGISTRYUS United States 18->61 63 api.ipify.org 104.26.13.205, 443, 49711, 49714 CLOUDFLARENETUS United States 18->63 45 C:\Users\user\AppData\Roaming\...\mpTrle.exe, PE32 18->45 dropped 73 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 18->73 75 Hides that the sample has been downloaded from the Internet (zone.identifier) 18->75 77 Loading BitLocker PowerShell Module 23->77 37 WmiPrvSE.exe 23->37         started        39 conhost.exe 23->39         started        41 conhost.exe 25->41         started        79 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 27->79 81 Tries to steal Mail credentials (via file / registry access) 27->81 83 Tries to harvest and steal ftp login credentials 27->83 85 Tries to harvest and steal browser information (history, passwords, etc) 27->85 43 conhost.exe 29->43         started        file9 signatures10 process11
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/c3135de6c77cb9f767977797316659bcc043ca15cca999599c92cd0d7f515154
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/c3135de6c77cb9f767977797316659bcc043ca15cca999599c92cd0d7f515154/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2024-06-06 03:57:03 UTC
File Type:
PE (.Net Exe)
Extracted files:
17
AV detection:
21 of 24 (87.50%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=ymjv3zwhps47oz4xo6ltczszxtaehsqvzsuzswm4slgq272rkfka._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
113561a55b05a8c962def7dc966ae3be7f05f4da38e97ce5803946c97b42b248
AgentTesla
1f7dcd5994d22e9acfb0313d58b4227abcd33966ae38863d91fbed5a0cd7b415
AgentTesla
255306dc51f8e03d60b15c31fcda56678224ff0e6781266a47aa71d5897429e7
AgentTesla
f7d2f864f121f8a86c7bd403bd70d9f40bb0420415b542b45110a2d4b7daee13
AgentTesla
+ 1'826 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla execution keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/240610-m4ehbagd3z/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Looks up external IP address via web service
Checks computer location settings
Command and Scripting Interpreter: PowerShell
AgentTesla
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/dad749c6-a2f3-42e9-b713-f11eee0def17
Unpacked files
SH256 hash:
1a1de9f3fe4c3a7ea7cd547cdd9d78b3873d6e243e544e5bb647452d6d9f6cfe
MD5 hash:
ceb52a5c98659e8905ea76737fe00c01
SHA1 hash:
bb7b30ff84d6aa26eaa0021c9fa3cd2c5a08e694
Link:
https://www.unpac.me/results/9e0b90fc-852d-4b29-b620-d36663623c58/
SH256 hash:
095c5a68d2c65beb375cec485bb2dc97af91fd4b484fa0148e31b4e66911ade7
MD5 hash:
3da3315210314c2eca2eccf7cb578911
SHA1 hash:
ac30a6e83d1af4d2990ad455cc0bf648adf3a66b
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/9e0b90fc-852d-4b29-b620-d36663623c58/
Parent samples :
d567f65100cbace4693cb094d7c8b06fb84891acdca23a0c83aefd85e6ff52ec
e7f83d43899e14d39467f1c25170cc0215bda6c7e99986285b6833642654d03a
c3135de6c77cb9f767977797316659bcc043ca15cca999599c92cd0d7f515154
7dc25c4e1ebd89f13aa8ecc4fb141a9bf297851781c82d7cb630ce1802e52791
SH256 hash:
8629faa402edf0123aad7cc1f157797ec291cfcd64f06626afd6d63fbaa8eae3
MD5 hash:
4aafc1901d6a350b233f5ae8d287128d
SHA1 hash:
7a3ce0b838d5649f4ee785991df766542c8e6cfb
Link:
https://www.unpac.me/results/9e0b90fc-852d-4b29-b620-d36663623c58/
SH256 hash:
e9319f360d8400e7dd18207e0731d4222b7b88f6aece7641cb960a033dfbe043
MD5 hash:
90af36207084292ebceaf0aa6a1586f7
SHA1 hash:
2583769c47d4203a8263aefeeb72b7194e272d5e
Link:
https://www.unpac.me/results/9e0b90fc-852d-4b29-b620-d36663623c58/
SH256 hash:
c3135de6c77cb9f767977797316659bcc043ca15cca999599c92cd0d7f515154
MD5 hash:
c8d9afec59fb4b38c9fbe3bb1a2a5937
SHA1 hash:
cf03154a48369bbe6bc50c8483df5a46668b160d
Link:
https://www.unpac.me/results/9e0b90fc-852d-4b29-b620-d36663623c58/
Malware family:
AgentTesla
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/c3135de6c77c/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.

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:AgentTeslaV5
Create hunting rule
Author:ClaudioWayne
Description:AgentTeslaV5 infostealer payload
Rule name:Agenttesla_type2
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
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:Multifamily_RAT_Detection
Create hunting rule
Author:Lucas Acha (http://www.lukeacha.com)
Description:Generic Detection for multiple RAT families, PUPs, Packers and suspicious executables
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 c3135de6c77cb9f767977797316659bcc043ca15cca999599c92cd0d7f515154

(this sample)

  
Delivery method
Distributed via e-mail attachment

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

Comments