MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b94b1ae5c6ee0f58d7213505a33dd3a2c125ca4ec2f8f370063bdb7befbd0fdd. 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
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SHA256 hash: b94b1ae5c6ee0f58d7213505a33dd3a2c125ca4ec2f8f370063bdb7befbd0fdd
SHA3-384 hash: 82184c9589c7d2a0dc68b0bb5932fa56fa407b2af585c38edb82108958854051adf554d1d79eec85c43780630813d892
SHA1 hash: b7ba589c93eeb73bde19b5ab3061f3143b70a6ec
MD5 hash: ed37bfcf5e11200581bb4fd758eaa29d
humanhash: king-cold-tango-butter
File name:SecuriteInfo.com.Win32.PWSX-gen.26878.2134
Download: download sample
Signature AgentTesla
Create hunting rule
File size:687'104 bytes
First seen:2024-06-21 01:24:17 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'599 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:Y4rP3Ee1W+RE39hHOvOor+NHuMiTEnp8IZpfKem5ce7cIprwCyyC5uY1yI:Y4rfTWfOviNnsEKIrfeQWw7yCf
Threatray 1'584 similar samples on MalwareBazaar
TLSH T111E41248BBFFFF59D87D43B95A30488043F2722A6A31E69E5EC5A0DA1D60BD08944F53
TrID 63.0% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.2% (.SCR) Windows screen saver (13097/50/3)
9.0% (.EXE) Win64 Executable (generic) (10523/12/4)
5.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.8% (.EXE) Win32 Executable (generic) (4504/4/1)
Reporter SecuriteInfoCom
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
351
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
b94b1ae5c6ee0f58d7213505a33dd3a2c125ca4ec2f8f370063bdb7befbd0fdd.exe
Verdict:
Malicious activity
Analysis date:
2024-06-21 01:29:54 UTC
Tags:
netreactor evasion stealer agenttesla exfiltration smtp
Link:
https://app.any.run/tasks/8037401f-1d97-40d5-9d86-8b31946bee9b

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.PWSX-gen.26878.2134.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
96.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6674d79fa9467d5d6f15ae01win7simulatehigh_evasion
Tags:
Banker Encryption Execution Generic Network Gensteal 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
Reading critical registry keys
Stealing user critical data
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Link:
https://www.hybrid-analysis.com/sample/b94b1ae5c6ee0f58d7213505a33dd3a2c125ca4ec2f8f370063bdb7befbd0fdd
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/7b645ccd-eb54-440a-9239-ad0420273cea
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
spre.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1460498
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
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
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: 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
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
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected AntiVM3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1460498 Sample: SecuriteInfo.com.Win32.PWSX... Startdate: 21/06/2024 Architecture: WINDOWS Score: 100 48 mail.famas.vn 2->48 50 api.ipify.org 2->50 52 3 other IPs or domains 2->52 54 Snort IDS alert for network traffic 2->54 56 Found malware configuration 2->56 58 Malicious sample detected (through community Yara rule) 2->58 60 13 other signatures 2->60 9 SecuriteInfo.com.Win32.PWSX-gen.26878.2134.exe 7 2->9         started        signatures3 process4 file5 36 C:\Users\user\AppData\...\qFLoUpmZUw.exe, PE32 9->36 dropped 38 C:\Users\...\qFLoUpmZUw.exe:Zone.Identifier, ASCII 9->38 dropped 40 C:\Users\user\AppData\Local\...\tmpD6DA.tmp, XML 9->40 dropped 42 SecuriteInfo.com.W....26878.2134.exe.log, ASCII 9->42 dropped 70 Uses schtasks.exe or at.exe to add and modify task schedules 9->70 72 Writes to foreign memory regions 9->72 74 Allocates memory in foreign processes 9->74 76 2 other signatures 9->76 13 qFLoUpmZUw.exe 5 9->13         started        16 MSBuild.exe 14 2 9->16         started        19 powershell.exe 23 9->19         started        21 schtasks.exe 1 9->21         started        signatures6 process7 dnsIp8 78 Antivirus detection for dropped file 13->78 80 Multi AV Scanner detection for dropped file 13->80 82 Machine Learning detection for dropped file 13->82 92 3 other signatures 13->92 23 MSBuild.exe 2 13->23         started        26 schtasks.exe 1 13->26         started        44 mail.famas.vn 210.245.86.58, 49709, 49711, 49719 FPT-AS-APTheCorporationforFinancingPromotingTechnolo Viet Nam 16->44 46 api.ipify.org 104.26.13.205, 443, 49706, 49710 CLOUDFLARENETUS United States 16->46 84 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 16->84 86 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 16->86 88 Tries to steal Mail credentials (via file / registry access) 16->88 90 Loading BitLocker PowerShell Module 19->90 28 WmiPrvSE.exe 19->28         started        30 conhost.exe 19->30         started        32 conhost.exe 21->32         started        signatures9 process10 signatures11 62 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 23->62 64 Tries to steal Mail credentials (via file / registry access) 23->64 66 Tries to harvest and steal ftp login credentials 23->66 68 2 other signatures 23->68 34 conhost.exe 26->34         started        process12
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/b94b1ae5c6ee0f58d7213505a33dd3a2c125ca4ec2f8f370063bdb7befbd0fdd
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b94b1ae5c6ee0f58d7213505a33dd3a2c125ca4ec2f8f370063bdb7befbd0fdd/
Threat name:
Win32.Spyware.Negasteal
Create hunting rule
Status:
Malicious
First seen:
2024-06-21 00:24:54 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
19 of 24 (79.17%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=xffrvzog5yhvrvzbguc2gpotulaslssoyl4pg4aghpnxx355b7oq._file
Verdict:
malicious
Label(s):
agenttesla_v4
Create hunting rule
agenttesla
Create hunting rule
Similar samples:
11d7212106c1e7d65ca5b3a3d6c197775e224c151b89900de265e6efcbb68322
AgentTesla
57826299a05b5202efad57e0b8580ffad6d90feace9734a5aceb3a0d945fbeee
AgentTesla
87c68756481a2bbd821e8ac224087c5626ffdc1e05eaaeff506bb0b5148bba0b
AgentTesla
b94b1ae5c6ee0f58d7213505a33dd3a2c125ca4ec2f8f370063bdb7befbd0fdd
AgentTesla
e0e9e48f20637598e39c11113db0e83a6a31efd3b94b2d400b110547687f2bf3
AgentTesla
+ 1'574 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla execution keylogger spyware stealer trojan
Link:
https://tria.ge/reports/240621-bszhkayerk/
Behaviour
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
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/b77fda44-c528-47f1-a959-0ce299017c10
Unpacked files
SH256 hash:
7305e2563134c4430f84dbdaa907039d5e34fded9f139f56d2f5bf85d748d8c4
MD5 hash:
c1ec65a6e715a2cf7621a73d12eb82ec
SHA1 hash:
8182c139626cb887c44323ba4753334a6fe9b819
Link:
https://www.unpac.me/results/b4969baa-d3c0-4792-9aa3-22d2fd8a00b4/
SH256 hash:
c1d0081fa0cc7dfd2068a45fd10914131889be6a49b100817b97fc69e0f2a5a6
MD5 hash:
ed90d37989f339d4d87d481d46226cfb
SHA1 hash:
727f573ac52a15514a5daf224d66bde2f7f7783d
Link:
https://www.unpac.me/results/b4969baa-d3c0-4792-9aa3-22d2fd8a00b4/
SH256 hash:
ecf1257cb2839319c722daf5323ba2ed7060368b46f84610b6b6823323297826
MD5 hash:
cba51dcdec84ac14ce1eaf2ede86f28b
SHA1 hash:
2e77e64525600817d96b4d9c497135c989e608ee
Link:
https://www.unpac.me/results/b4969baa-d3c0-4792-9aa3-22d2fd8a00b4/
SH256 hash:
f2ea9052cef63777fb5bd88828692135be0046044130fda845d460d78ceca392
MD5 hash:
e8598177e2d9b359938f210a3e714692
SHA1 hash:
17dfeea8d3df21a547ab78044d4485f09048ea08
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/b4969baa-d3c0-4792-9aa3-22d2fd8a00b4/
Parent samples :
7e97d7cf523a436936c20d4397ad8044177c0ae49c4ea2cf0c9dd77ce6a220b6
b94b1ae5c6ee0f58d7213505a33dd3a2c125ca4ec2f8f370063bdb7befbd0fdd
ace149a232afd3aa170b48d79a32502f7b3ebfb1a82de8b4fa362ae2652859b2
SH256 hash:
9a577d31e2c9a641f75ddaed2b0c4009e283d51c005e3fbbca81786bff761f21
MD5 hash:
ed61a5aa0f4d1ce89382122fd40086cb
SHA1 hash:
12d91d13eec29f2fd66fa4884d26798ffb2e1b34
Link:
https://www.unpac.me/results/b4969baa-d3c0-4792-9aa3-22d2fd8a00b4/
SH256 hash:
b94b1ae5c6ee0f58d7213505a33dd3a2c125ca4ec2f8f370063bdb7befbd0fdd
MD5 hash:
ed37bfcf5e11200581bb4fd758eaa29d
SHA1 hash:
b7ba589c93eeb73bde19b5ab3061f3143b70a6ec
Link:
https://www.unpac.me/results/b4969baa-d3c0-4792-9aa3-22d2fd8a00b4/
Malware family:
AgentTesla
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b94b1ae5c6ee/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: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.

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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