MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e87cb23c2629c486769919b97aa8355cea8eff2f54ed86a09332e2d6c6f82596. 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: 15


Intelligence 15 IOCs YARA 17 File information Comments

SHA256 hash: e87cb23c2629c486769919b97aa8355cea8eff2f54ed86a09332e2d6c6f82596
SHA3-384 hash: 2bb4d2fe0f1bbe01b2972cf57ee2966bd76e7c925acb49598e076745d937fb9d7f211a8c7438e5ce912d8d6975da52ef
SHA1 hash: a8d786879a7495170a0881d79b2fb5e2615edc2e
MD5 hash: 48f1d0da55cb4e3eb9001314a8eba595
humanhash: grey-white-comet-blue
File name:TT copy of the first payment.exe
Download: download sample
Signature AgentTesla
File size:659'968 bytes
First seen:2024-04-22 07:30:16 UTC
Last seen:2024-04-29 09:27:01 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:pVQCjMLcR3tGckgEJge4XfYIEuYoCWB+cYFqOOmN/MtWa8rg:MCjMrc5SrbLFqZZ
Threatray 578 similar samples on MalwareBazaar
TLSH T197E423C53D7EEA91C27C847F44344514C2B7AB42E5A3DA4FCD91E1D9AE03BEC9648B88
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 0000000000000000 (872 x AgentTesla, 496 x Formbook, 296 x RedLineStealer)
Reporter lowmal3
Tags:AgentTesla exe

Intelligence


File Origin
# of uploads :
2
# of downloads :
363
Origin country :
DE DE
Vendor Threat Intelligence
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
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:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
masquerade obfuscated packed
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.
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Adds a directory exclusion to Windows Defender
Allocates memory in foreign processes
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Initial sample is a PE file and has a suspicious name
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: 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 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
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1429496 Sample: TT copy of the first payment.exe Startdate: 22/04/2024 Architecture: WINDOWS Score: 100 53 us2.smtp.mailhostbox.com 2->53 55 api.ipify.org 2->55 67 Found malware configuration 2->67 69 Malicious sample detected (through community Yara rule) 2->69 71 Sigma detected: Scheduled temp file as task from temp location 2->71 73 10 other signatures 2->73 8 TT copy of the first payment.exe 7 2->8         started        12 SRhydlWJN.exe 5 2->12         started        14 mpTrle.exe 2->14         started        16 mpTrle.exe 2->16         started        signatures3 process4 file5 49 C:\Users\user\AppData\Roaming\SRhydlWJN.exe, PE32 8->49 dropped 51 C:\Users\user\AppData\Local\...\tmpC051.tmp, XML 8->51 dropped 89 Writes to foreign memory regions 8->89 91 Allocates memory in foreign processes 8->91 93 Adds a directory exclusion to Windows Defender 8->93 18 RegSvcs.exe 16 4 8->18         started        23 powershell.exe 23 8->23         started        25 powershell.exe 23 8->25         started        27 schtasks.exe 1 8->27         started        95 Multi AV Scanner detection for dropped file 12->95 97 Machine Learning detection for dropped file 12->97 99 Injects a PE file into a foreign processes 12->99 29 RegSvcs.exe 12->29         started        31 schtasks.exe 12->31         started        33 conhost.exe 14->33         started        35 conhost.exe 16->35         started        signatures6 process7 dnsIp8 57 us2.smtp.mailhostbox.com 208.91.198.143, 587 PUBLIC-DOMAIN-REGISTRYUS United States 18->57 59 api.ipify.org 104.26.12.205, 443, 49708, 49712 CLOUDFLARENETUS United States 18->59 47 C:\Users\user\AppData\Roaming\...\mpTrle.exe, PE32 18->47 dropped 75 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 18->75 77 Hides that the sample has been downloaded from the Internet (zone.identifier) 18->77 79 Loading BitLocker PowerShell Module 23->79 37 conhost.exe 23->37         started        39 WmiPrvSE.exe 23->39         started        41 conhost.exe 25->41         started        43 conhost.exe 27->43         started        61 208.91.199.223, 587 PUBLIC-DOMAIN-REGISTRYUS United States 29->61 63 208.91.199.224, 587 PUBLIC-DOMAIN-REGISTRYUS United States 29->63 65 208.91.199.225, 587 PUBLIC-DOMAIN-REGISTRYUS United States 29->65 81 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 29->81 83 Tries to steal Mail credentials (via file / registry access) 29->83 85 Tries to harvest and steal ftp login credentials 29->85 87 Tries to harvest and steal browser information (history, passwords, etc) 29->87 45 conhost.exe 31->45         started        file9 signatures10 process11
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2024-04-22 03:13:59 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
24 of 38 (63.16%)
Threat level:
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
family:agenttesla keylogger persistence spyware stealer trojan
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
AgentTesla
Unpacked files
SH256 hash:
0c74c0f6303369598d558fa3f03692a83f14f6a9f8668e8529b827f7d4754b56
MD5 hash:
ff47233452fa3a6bd88da0d0e0e2d6af
SHA1 hash:
c199ed104b53cd73ca4ed556818f2ed9ed54672c
SH256 hash:
c07f4995e8edcf73df46b2531eb00816959f130054d3eee616cff54797374d79
MD5 hash:
0c0abc99c15c7f9e015c1b1c8078c1e4
SHA1 hash:
a30c79529ef68cdb5a177289ebb7b4234b32d246
SH256 hash:
49834fca6ecc3b86e0d7e4ffd9cf8dcfa6a06b7c0d137d3772c7629b0d40813d
MD5 hash:
f05122a8b81c9cc20e409183ab288d33
SHA1 hash:
826653f951652716ebaa8f0dfc38a53904dbd144
Detections:
AgentTesla win_agent_tesla_g2 INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients Agenttesla_type2 INDICATOR_SUSPICIOUS_Binary_References_Browsers INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients INDICATOR_EXE_Packed_GEN01 INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
SH256 hash:
0b8ce50168530bf0cb343b44f73db26252353b48843ad163b5c4d40f750b57d0
MD5 hash:
c1ec0dcd8de33cb2d41c7473e00a291a
SHA1 hash:
6c85c33563b9d3f4731b73ec9109b0832096739c
SH256 hash:
e87cb23c2629c486769919b97aa8355cea8eff2f54ed86a09332e2d6c6f82596
MD5 hash:
48f1d0da55cb4e3eb9001314a8eba595
SHA1 hash:
a8d786879a7495170a0881d79b2fb5e2615edc2e
Malware family:
AgentTesla
Verdict:
Malicious
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
Author:ditekshen
Description:AgentTeslaV3 infostealer payload
Rule name:AgentTeslaV5
Author:ClaudioWayne
Description:AgentTeslaV5 infostealer payload
Rule name:INDICATOR_EXE_Packed_GEN01
Author:ditekSHen
Description:Detect packed .NET executables. Mostly AgentTeslaV4.
Rule name:INDICATOR_SUSPICIOUS_Binary_References_Browsers
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
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
Author:ditekSHen
Description:Detects executables referencing many email and collaboration clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
Author:ditekSHen
Description:Detects executables referencing many file transfer clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
Author:ditekSHen
Description:Detects executables referencing Windows vault credential objects. Observed in infostealers
Rule name:malware_Agenttesla_type2
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:Multifamily_RAT_Detection
Author:Lucas Acha (http://www.lukeacha.com)
Description:Generic Detection for multiple RAT families, PUPs, Packers and suspicious executables
Rule name:NET
Author:malware-lu
Rule name:NETexecutableMicrosoft
Author:malware-lu
Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
Rule name:Windows_Generic_Threat_9f4a80b2
Author:Elastic Security
Rule name:Windows_Trojan_AgentTesla_ebf431a8
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 e87cb23c2629c486769919b97aa8355cea8eff2f54ed86a09332e2d6c6f82596

(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