MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 50e845d9eb8b8a08f77da69556c94958265cb875129a41177c60094b71434e9a. 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: 16


Intelligence 16 IOCs YARA 16 File information Comments
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SHA256 hash: 50e845d9eb8b8a08f77da69556c94958265cb875129a41177c60094b71434e9a
SHA3-384 hash: 6dd86364b01f8aeb21f204cad20a05b786cf3cb48c8272d550d24b7240e8eac080238786f49600b46b72f7c5242abdf2
SHA1 hash: a931d7d7b4471c39e37c14369373aa0bc4d5ad2e
MD5 hash: bdac6ecf5c7f3ae57414eb01e643f96b
humanhash: single-earth-jersey-red
File name:RFQ10675000162.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:4'856'992 bytes
First seen:2024-05-15 14:37:08 UTC
Last seen:2024-05-15 15:21:54 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'609 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 24576:0s99lUjIm5M193TxVmMJIquuX/GQl04NCYIHesng/pMqRG+5LF2DfE8z4jJsP+i4:b
TLSH T1452619F4A1EB81E1F8079DB465A8BE96037231F3CDD50C24232D7A444FAAD9D7A4990F
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 108088888c888010 (6 x AgentTesla, 3 x SnakeKeylogger, 3 x Formbook)
Reporter NDA0E
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
362
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
50e845d9eb8b8a08f77da69556c94958265cb875129a41177c60094b71434e9a.exe
Verdict:
Malicious activity
Analysis date:
2024-05-15 14:39:08 UTC
Tags:
evasion agenttesla stealer exfiltration
Link:
https://app.any.run/tasks/3c79c6e7-f44a-4478-9879-d33c29b5b115

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.PUA.EmbeddedEXE-1.UNOFFICIAL
Create hunting rule

Gathering data
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %AppData% directory
Launching a process
Creating a process with a hidden window
Creating a file
Using the Windows Management Instrumentation requests
Сreating synchronization primitives
DNS request
Connection attempt
Sending a custom TCP request
Sending an HTTP GET request
Reading critical registry keys
Creating a window
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Stealing user critical data
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm net_reactor overlay packed packed
Link:
https://www.filescan.io/uploads/6644c8cc3313f70f0afcdb31/reports/0920ce78-941e-488f-bdcd-75eb3f167d1f/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/50e845d9eb8b8a08f77da69556c94958265cb875129a41177c60094b71434e9a
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
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/cb09d3bb-e683-44d1-b66e-cac583bfd787
Result
Threat name:
AgentTesla, PureLog Stealer
Create hunting rule
Detection:
malicious
Classification:
spre.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1442078
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Check if machine is in data center or colocation facility
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Found malware configuration
Initial sample is a PE file and has a suspicious name
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: RegAsm connects to smtp port
Snort IDS alert for network traffic
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
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)
Yara detected AgentTesla
Yara detected AntiVM3
Yara detected Costura Assembly Loader
Yara detected Generic Downloader
Yara detected PureLog Stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1442078 Sample: RFQ10675000162.exe Startdate: 15/05/2024 Architecture: WINDOWS Score: 100 25 ip-api.com 2->25 27 api.ipify.org 2->27 47 Snort IDS alert for network traffic 2->47 49 Found malware configuration 2->49 51 Malicious sample detected (through community Yara rule) 2->51 53 12 other signatures 2->53 7 RFQ10675000162.exe 1 3 2->7         started        11 oouvef.exe 1 2->11         started        13 oouvef.exe 2->13         started        signatures3 process4 file5 23 C:\Users\user\AppData\Roaming\oouvef.exe, PE32 7->23 dropped 55 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 7->55 15 RegAsm.exe 15 2 7->15         started        57 Antivirus detection for dropped file 11->57 59 Multi AV Scanner detection for dropped file 11->59 61 Machine Learning detection for dropped file 11->61 19 RegAsm.exe 2 11->19         started        21 RegAsm.exe 2 13->21         started        signatures6 process7 dnsIp8 29 ip-api.com 208.95.112.1, 49708, 49713, 49722 TUT-ASUS United States 15->29 31 66.29.151.236, 49709, 49716, 49723 ADVANTAGECOMUS United States 15->31 33 api.ipify.org 104.26.12.205, 443, 49707, 49710 CLOUDFLARENETUS United States 15->33 35 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 15->35 37 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 15->37 39 Tries to steal Mail credentials (via file / registry access) 15->39 41 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 15->41 43 Tries to harvest and steal ftp login credentials 21->43 45 Tries to harvest and steal browser information (history, passwords, etc) 21->45 signatures9
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/50e845d9eb8b8a08f77da69556c94958265cb875129a41177c60094b71434e9a
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/50e845d9eb8b8a08f77da69556c94958265cb875129a41177c60094b71434e9a/
Threat name:
Win32.Spyware.Negasteal
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Status:
Malicious
First seen:
2024-05-15 14:38:06 UTC
File Type:
PE (.Net Exe)
Extracted files:
20
AV detection:
19 of 24 (79.17%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=kduelwplrofar535u2kvnskjlatfzodvcknecf34maeuw4kdj2na._file
Result
Malware family:
zgrat
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla family:zgrat keylogger persistence rat spyware stealer trojan
Link:
https://tria.ge/reports/240515-rzp6gadg6y/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of SetThreadContext
Adds Run key to start application
Looks up external IP address via web service
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
Detect ZGRat V1
ZGRat
Unpacked files
SH256 hash:
bf546e45398fe582bfb71e7be0fa68ce4c02c3c8943f66dc7cc8a953399d8553
MD5 hash:
fcfc915020021578dc4a22354348118f
SHA1 hash:
e55d9c6d1fba026aca98c8caefe532d246367368
Link:
https://www.unpac.me/results/3bacd23a-8f8c-4194-aeb1-54f683474025/
SH256 hash:
50e845d9eb8b8a08f77da69556c94958265cb875129a41177c60094b71434e9a
MD5 hash:
bdac6ecf5c7f3ae57414eb01e643f96b
SHA1 hash:
a931d7d7b4471c39e37c14369373aa0bc4d5ad2e
Link:
https://www.unpac.me/results/3bacd23a-8f8c-4194-aeb1-54f683474025/
Malware family:
AgentTesla
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/50e845d9eb8b/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.83
Link:
https://yomi.yoroi.company/submissions/50e845d9eb8b8a08f77da69556c94958265cb875129a41177c60094b71434e9a

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:DebuggerCheck__RemoteAPI
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
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
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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_SandboxHookingDLL
Create hunting rule
Author:ditekSHen
Description:Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion
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: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_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 (GUARD_CF)high

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