MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 870b351d47a9afbc5b250a50a24cdd348ed65d95eecee4cedff4e3191ac927a6. 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 17 File information Comments

SHA256 hash: 870b351d47a9afbc5b250a50a24cdd348ed65d95eecee4cedff4e3191ac927a6
SHA3-384 hash: 85ba9d017c6d2f7e75a1678665e8796c8256d6b038d9d61a323f32d2cb7d0e64ae51c2f0d76ef0efd5815535daf7954a
SHA1 hash: a16e2004fda4021d79642e51f04eb479eff67975
MD5 hash: 259f46fd4f0450441042a602283c64d6
humanhash: happy-cat-nevada-march
File name:SecuriteInfo.com.FileRepMalware.7644.21541
Download: download sample
Signature AgentTesla
File size:684'032 bytes
First seen:2024-04-17 18:30:26 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'746 x AgentTesla, 19'628 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:cpVnFyHgjly0NfusbxNMAQLQ5QOGm/Fz7ZLK3YR7oy/5nIc:cNyHE8KusbxmPLcQHm/FzdOwjp
Threatray 765 similar samples on MalwareBazaar
TLSH T193E4238A3345A717C438037E5D348A7247F0D1E3654BF2C8BFD1A0FE6BD6B1568628A6
TrID 69.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.0% (.EXE) Win64 Executable (generic) (10523/12/4)
6.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.2% (.EXE) Win32 Executable (generic) (4504/4/1)
1.9% (.EXE) Win16/32 Executable Delphi generic (2072/23)
File icon (PE):PE icon
dhash icon 70e4d8b8f8e8c470 (8 x AgentTesla, 4 x Formbook)
Reporter SecuriteInfoCom
Tags:AgentTesla exe

Intelligence


File Origin
# of uploads :
1
# of downloads :
382
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
agenttesla
ID:
1
File name:
870b351d47a9afbc5b250a50a24cdd348ed65d95eecee4cedff4e3191ac927a6.exe
Verdict:
Malicious activity
Analysis date:
2024-04-17 18:32:28 UTC
Tags:
agenttesla stealer

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
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
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:
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
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Contains functionality to log keystrokes (.Net Source)
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: 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 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: 1427592 Sample: SecuriteInfo.com.FileRepMal... Startdate: 17/04/2024 Architecture: WINDOWS Score: 100 53 mail.starmech.in 2->53 55 api.ipify.org 2->55 61 Snort IDS alert for network traffic 2->61 63 Malicious sample detected (through community Yara rule) 2->63 65 Antivirus / Scanner detection for submitted sample 2->65 67 9 other signatures 2->67 8 SecuriteInfo.com.FileRepMalware.7644.21541.exe 7 2->8         started        12 SNgHGtagT.exe 5 2->12         started        14 My App.exe 2->14         started        16 My App.exe 2->16         started        signatures3 process4 file5 49 C:\Users\user\AppData\Roaming\SNgHGtagT.exe, PE32 8->49 dropped 51 C:\Users\user\AppData\Local\...\tmp8B40.tmp, XML 8->51 dropped 81 Uses schtasks.exe or at.exe to add and modify task schedules 8->81 83 Writes to foreign memory regions 8->83 85 Allocates memory in foreign processes 8->85 93 2 other signatures 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        87 Antivirus detection for dropped file 12->87 89 Multi AV Scanner detection for dropped file 12->89 91 Machine Learning detection for dropped file 12->91 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 mail.starmech.in 148.66.136.7, 49734, 49738, 587 AS-26496-GO-DADDY-COM-LLCUS Singapore 18->57 59 api.ipify.org 104.26.13.205, 443, 49733, 49737 CLOUDFLARENETUS United States 18->59 47 C:\Users\user\AppData\Roaming\...\My App.exe, PE32 18->47 dropped 69 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 18->69 71 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 18->71 73 Tries to steal Mail credentials (via file / registry access) 18->73 75 Loading BitLocker PowerShell Module 23->75 37 conhost.exe 23->37         started        39 WmiPrvSE.exe 23->39         started        41 conhost.exe 25->41         started        43 conhost.exe 27->43         started        77 Tries to harvest and steal browser information (history, passwords, etc) 29->77 79 Hides that the sample has been downloaded from the Internet (zone.identifier) 29->79 45 conhost.exe 31->45         started        file9 signatures10 process11
Threat name:
ByteCode-MSIL.Trojan.Taskun
Status:
Malicious
First seen:
2024-04-17 15:00:12 UTC
File Type:
PE (.Net Exe)
Extracted files:
10
AV detection:
18 of 24 (75.00%)
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:
c7b45d03028dbc01675929db49b32f3dd83ee343290ff814a28e9a5c632d1423
MD5 hash:
f45dc6d7de5350b174ed9128d7215afd
SHA1 hash:
e033c1ab182ea9028a9c01eb534d0fdbcb2292e9
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:
1c633f39a192f108f755e0bcf412e8489ad80781f3b7807c80892deb2526ff0d
MD5 hash:
e4b5d57e9e46a4e76075b5b92f71577f
SHA1 hash:
d76dc165724148193c6911cc75fc62c198737d3a
SH256 hash:
3e09fa414fc86812760253e5b6931914064be9c5470443fbac85c58c0dc7fe77
MD5 hash:
db205fca382c6ee86b55e77c322584c2
SHA1 hash:
9f97d558dbe4adbc3bbef25b331abd987a08f76e
SH256 hash:
088d825b072753b341c93fe2274ddf67b1e1c018ef63ad8827abd4567b810fdd
MD5 hash:
59c45e32f980aecd0700e372520c6db2
SHA1 hash:
2c5f657eda7406473034b815d543ac959de6f4a0
SH256 hash:
870b351d47a9afbc5b250a50a24cdd348ed65d95eecee4cedff4e3191ac927a6
MD5 hash:
259f46fd4f0450441042a602283c64d6
SHA1 hash:
a16e2004fda4021d79642e51f04eb479eff67975
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.

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