MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 921ace6c0f27813fa370b65bcaee79824a4e31920dbdfec7652103c60e84cd23. 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 20 File information Comments

SHA256 hash: 921ace6c0f27813fa370b65bcaee79824a4e31920dbdfec7652103c60e84cd23
SHA3-384 hash: ab8d355ead05b208cb35d139ee2c8815030b2ab59a4e316a0c3f6a9e1bdd9d0dc71f3bb8ac99735d0b0a8c82f4526440
SHA1 hash: 3e939ea522e4356fbdc15c7e0119366a6369e0c9
MD5 hash: f060b9400a263bea044a7789ec1d85d9
humanhash: romeo-triple-cup-uncle
File name:Payment Advice.exe
Download: download sample
Signature AgentTesla
File size:695'304 bytes
First seen:2024-04-18 16:24:52 UTC
Last seen:2024-04-18 19:24:07 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 12288:fH7A3U2WtXkF/gAiCTLY10rcTu0Gm6NHeMdwG+q7Ln2oMIzw4CGDw92kR:UE2OSIUTE14cZ6dp3n2opw/
Threatray 919 similar samples on MalwareBazaar
TLSH T194E423C5B2B4DB33C38D4D70A163860C2772D9C67611E7FE259A85BB2BF2B2055A0D63
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 70e4d8b8f8e8c470 (8 x AgentTesla, 4 x Formbook)
Reporter cocaman
Tags:AgentTesla exe payment

Intelligence


File Origin
# of uploads :
6
# of downloads :
376
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
agenttesla
ID:
1
File name:
921ace6c0f27813fa370b65bcaee79824a4e31920dbdfec7652103c60e84cd23.exe
Verdict:
Malicious activity
Analysis date:
2024-04-18 16:27:39 UTC
Tags:
smtp stealer agenttesla

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
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
Moving a file to the Program Files subdirectory
Replacing files
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
masquerade obfuscated overlay packed rogue
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
Contains functionality to log keystrokes (.Net Source)
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
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
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
Yara detected AgentTesla
Yara detected AntiVM3
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1428252 Sample: Payment Advice.exe Startdate: 18/04/2024 Architecture: WINDOWS Score: 100 61 mail.seawaysfreight-bd.com 2->61 63 seawaysfreight-bd.com 2->63 65 api.ipify.org 2->65 71 Found malware configuration 2->71 73 Malicious sample detected (through community Yara rule) 2->73 75 Sigma detected: Scheduled temp file as task from temp location 2->75 77 12 other signatures 2->77 8 Payment Advice.exe 7 2->8         started        12 BjTxJte.exe 2->12         started        14 sFPEKzHsLkYZIz.exe 2->14         started        16 BjTxJte.exe 2->16         started        signatures3 process4 file5 57 C:\Users\user\AppData\...\sFPEKzHsLkYZIz.exe, PE32 8->57 dropped 59 C:\Users\user\AppData\Local\...\tmp6619.tmp, XML 8->59 dropped 93 Adds a directory exclusion to Windows Defender 8->93 18 Payment Advice.exe 16 5 8->18         started        23 powershell.exe 23 8->23         started        35 2 other processes 8->35 95 Multi AV Scanner detection for dropped file 12->95 97 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 12->97 99 Machine Learning detection for dropped file 12->99 101 Injects a PE file into a foreign processes 12->101 25 BjTxJte.exe 12->25         started        37 2 other processes 12->37 27 sFPEKzHsLkYZIz.exe 14->27         started        29 schtasks.exe 14->29         started        31 BjTxJte.exe 16->31         started        33 schtasks.exe 16->33         started        signatures6 process7 dnsIp8 67 seawaysfreight-bd.com 94.100.26.91, 49738, 49740, 49747 HVC-ASUS Netherlands 18->67 69 api.ipify.org 104.26.13.205, 443, 49735, 49739 CLOUDFLARENETUS United States 18->69 53 C:\Users\user\AppData\Roaming\...\BjTxJte.exe, PE32 18->53 dropped 55 C:\Users\user\...\BjTxJte.exe:Zone.Identifier, ASCII 18->55 dropped 79 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 18->79 81 Tries to steal Mail credentials (via file / registry access) 18->81 83 Hides that the sample has been downloaded from the Internet (zone.identifier) 18->83 85 Loading BitLocker PowerShell Module 23->85 39 conhost.exe 23->39         started        41 WmiPrvSE.exe 23->41         started        43 conhost.exe 29->43         started        87 Tries to harvest and steal ftp login credentials 31->87 89 Tries to harvest and steal browser information (history, passwords, etc) 31->89 91 Installs a global keyboard hook 31->91 45 conhost.exe 33->45         started        47 conhost.exe 35->47         started        49 conhost.exe 35->49         started        51 conhost.exe 37->51         started        file9 signatures10 process11
Threat name:
Win32.Trojan.Leonem
Status:
Malicious
First seen:
2024-04-17 23:11:02 UTC
File Type:
PE (.Net Exe)
Extracted files:
2
AV detection:
19 of 24 (79.17%)
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 SetWindowsHookEx
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
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
Unpacked files
SH256 hash:
1c633f39a192f108f755e0bcf412e8489ad80781f3b7807c80892deb2526ff0d
MD5 hash:
e4b5d57e9e46a4e76075b5b92f71577f
SHA1 hash:
d76dc165724148193c6911cc75fc62c198737d3a
SH256 hash:
e8d5a9219e8af1cf0ed3c2dffaeee22b38da4ea86d02502ea3e48e6da80dc40e
MD5 hash:
eb53f8b2ad757b9fdaaa04ccf238a125
SHA1 hash:
698712042011f2ee4c9a014912920c82b0a230d2
SH256 hash:
fd35e87cc9fc95ce95430ce40fe53a2c27c89b1cffc96c70205c8ab7ee8cda7a
MD5 hash:
4d5bef829811fd9a50988a98448ec98f
SHA1 hash:
687c70f4a502963dee89119dcb991d10569965e1
SH256 hash:
27896043c515b704ea8c7bfa6bed64e2a8b09cc820205c3ee3c4cdc8988c3f91
MD5 hash:
d29c16478acb56861e08e9c0c2eca08f
SHA1 hash:
33257ba2e66b429932b8b8012b8188a7cc8c004c
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:
921ace6c0f27813fa370b65bcaee79824a4e31920dbdfec7652103c60e84cd23
MD5 hash:
f060b9400a263bea044a7789ec1d85d9
SHA1 hash:
3e939ea522e4356fbdc15c7e0119366a6369e0c9
Detections:
INDICATOR_KB_CERT_7c1118cbbadc95da3752c46e47a27438
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_KB_CERT_7c1118cbbadc95da3752c46e47a27438
Author:ditekSHen
Description:Detects executables signed with stolen, revoked or invalid certificates
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_Digital_Certificate
Author:albertzsigovits
Rule name:pe_imphash
Rule name:PE_Potentially_Signed_Digital_Certificate
Author:albertzsigovits
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 921ace6c0f27813fa370b65bcaee79824a4e31920dbdfec7652103c60e84cd23

(this sample)

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