MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b5373781057e3cc3a3e2064f57942adc17f2a3905de6c1037332dfaede7a9cba. 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 13 File information Comments
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SHA256 hash: b5373781057e3cc3a3e2064f57942adc17f2a3905de6c1037332dfaede7a9cba
SHA3-384 hash: fddcf0a417a9920434deb5f0e94759bf8bccc37c9d993d6a9f74780e1beab7fb75ee9a29a9b9bff739e73a8b27aa7168
SHA1 hash: c5bd7e1f89fde69af56a8305e5fac685557da92e
MD5 hash: 3cfb07a2465657d8928e675dedcd9978
humanhash: pizza-eleven-pip-potato
File name:PRE ALERT NOTICE.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:678'400 bytes
First seen:2023-12-12 14:35:13 UTC
Last seen:2023-12-12 23:47:44 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:huGo+4WpAE9y7Rxkz2Uo6hYMRbG7TyQ8WyDv3WDWHUIpUsimxVR5dx6D78cPLC+:ppAEIxyo6hplGUWyrWDEUIpUOTKD
TLSH T18AE42220362E965BE6F703FA956152041370BE239713EACC6CA171CD6EF5BB05BA0277
TrID 60.4% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.8% (.SCR) Windows screen saver (13097/50/3)
8.7% (.EXE) Win64 Executable (generic) (10523/12/4)
5.4% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.1% (.EXE) Win16 NE executable (generic) (5038/12/1)
File icon (PE):PE icon
dhash icon f0c896b2b296e8f0 (19 x AgentTesla, 5 x Formbook, 2 x AsyncRAT)
Reporter James_inthe_box
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
5
# of downloads :
251
Origin country :
US US
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
PRE ALERT NOTICE.exe
Verdict:
Malicious activity
Analysis date:
2023-12-12 15:17:23 UTC
Tags:
stealer agenttesla
Link:
https://app.any.run/tasks/af31657a-af38-427d-b842-749a5eee2a5b

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
AgentTesla
Create hunting rule
Link:
https://www.capesandbox.com/analysis/466501/
Detection(s):
SecuriteInfo.com.Trojan.Inject4.59820.25095.13910.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
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
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
hook keylogger packed
Link:
https://www.filescan.io/uploads/65786fd656f85d0de416da01/reports/6d4c25a0-ead7-493b-83d7-59ead1c9e0dc/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/b5373781057e3cc3a3e2064f57942adc17f2a3905de6c1037332dfaede7a9cba
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/56656e3d-f358-4f69-9d30-2bf871924229
Result
Threat name:
AgentTesla, zgRAT
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1360279
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
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 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
Yara detected Generic Downloader
Yara detected zgRAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1360279 Sample: PRE_ALERT_NOTICE.exe Startdate: 12/12/2023 Architecture: WINDOWS Score: 100 40 mail.2sautomobile.com 2->40 42 2sautomobile.com 2->42 46 Found malware configuration 2->46 48 Malicious sample detected (through community Yara rule) 2->48 50 Sigma detected: Scheduled temp file as task from temp location 2->50 52 9 other signatures 2->52 8 PRE_ALERT_NOTICE.exe 7 2->8         started        12 eKoCjhdl.exe 2->12         started        signatures3 process4 file5 36 C:\Users\user\AppData\Roaming\eKoCjhdl.exe, PE32 8->36 dropped 38 C:\Users\user\AppData\Local\...\tmpBA7F.tmp, XML 8->38 dropped 54 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 8->54 56 Uses schtasks.exe or at.exe to add and modify task schedules 8->56 58 Adds a directory exclusion to Windows Defender 8->58 14 PRE_ALERT_NOTICE.exe 2 8->14         started        18 powershell.exe 23 8->18         started        20 powershell.exe 23 8->20         started        22 schtasks.exe 1 8->22         started        60 Machine Learning detection for dropped file 12->60 62 Injects a PE file into a foreign processes 12->62 24 eKoCjhdl.exe 12->24         started        26 schtasks.exe 12->26         started        signatures6 process7 dnsIp8 44 2sautomobile.com 176.31.224.117, 49732, 49735, 49742 OVHFR France 14->44 28 conhost.exe 18->28         started        30 conhost.exe 20->30         started        32 conhost.exe 22->32         started        64 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 24->64 66 Tries to steal Mail credentials (via file / registry access) 24->66 68 Tries to harvest and steal browser information (history, passwords, etc) 24->68 34 conhost.exe 26->34         started        signatures9 process10
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/b5373781057e3cc3a3e2064f57942adc17f2a3905de6c1037332dfaede7a9cba
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b5373781057e3cc3a3e2064f57942adc17f2a3905de6c1037332dfaede7a9cba/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2023-12-12 11:24:20 UTC
File Type:
PE (.Net Exe)
Extracted files:
11
AV detection:
16 of 23 (69.57%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=wu3tpaifpy6mhi7cazhvpfbk3ql7fi4qlxtmca3tglp25xt2ts5a._file
Verdict:
malicious
Label(s):
agenttesla_v4
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agenttesla
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Result
Malware family:
zgrat
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla family:zgrat keylogger rat spyware stealer trojan
Link:
https://tria.ge/reports/231212-rykjlaeeeq/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
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:
d01f3dea3851602ba5a0586c60430d286adf6fcc7e17aab080601a66630606e5
MD5 hash:
579197d4f760148a9482d1ebde113259
SHA1 hash:
cf6924eb360c7e5a117323bebcb6ee02d2aec86d
Link:
https://www.unpac.me/results/43006728-d650-4db7-a54c-952fdc29d333/
SH256 hash:
ff85180528ed75a48a69183f1d234d2aeb2bc09b32fa0f4e97ce12c7c19b5b8c
MD5 hash:
5c352b9d3221bbed251e41b22a09dcc3
SHA1 hash:
921e1e0d03013d6bd55f14aae374cb5d627ef36b
Link:
https://www.unpac.me/results/43006728-d650-4db7-a54c-952fdc29d333/
SH256 hash:
6c7b513593aff542f34098e594f1ca0af29901f96ed94b58f37a32a4a961fd99
MD5 hash:
b05a3c0a48fa716f97561a004fcc3179
SHA1 hash:
18717fe05e1990f47d4d542f32e7e92f761c3b8a
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/43006728-d650-4db7-a54c-952fdc29d333/
Parent samples :
4722e9113d3f8eaa1956f990da588f8eed324bb8d5551d52bff3bf4536a6010d
9c0346e08a28cec8ab5be231e650450bbf64ebc42a14169e755ed9badef3b630
b5373781057e3cc3a3e2064f57942adc17f2a3905de6c1037332dfaede7a9cba
864fe98f784db801dd8514226f5b70bb21f41ef4ffcef3fc77636fbfa039444a
6a925c2569b45a9199d08453915475565d5ea13788bb12ede9102c370f8bce0f
6c7b513593aff542f34098e594f1ca0af29901f96ed94b58f37a32a4a961fd99
SH256 hash:
7d968ee2ec1bf4c1bf9228f8f2794675de987ac83bac5f8c608963526a435ed3
MD5 hash:
1845455753429aeee7c7762ef407d8ea
SHA1 hash:
050f55f9458f419c8fec7b31cf80542849d33a76
Link:
https://www.unpac.me/results/43006728-d650-4db7-a54c-952fdc29d333/
SH256 hash:
b5373781057e3cc3a3e2064f57942adc17f2a3905de6c1037332dfaede7a9cba
MD5 hash:
3cfb07a2465657d8928e675dedcd9978
SHA1 hash:
c5bd7e1f89fde69af56a8305e5fac685557da92e
Link:
https://www.unpac.me/results/43006728-d650-4db7-a54c-952fdc29d333/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b5373781057e/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/b5373781057e3cc3a3e2064f57942adc17f2a3905de6c1037332dfaede7a9cba

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: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

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

AgentTesla

zip 79c876d02fe3cbb401a8862883da6c028ab59ddab08d442f81ed1c1ac735ad57

AgentTesla

Executable exe b5373781057e3cc3a3e2064f57942adc17f2a3905de6c1037332dfaede7a9cba

(this sample)

  
Delivery method
Other
Cape
Cape
https://www.capesandbox.com/analysis/466501/
  
Dropped by
SHA256 79c876d02fe3cbb401a8862883da6c028ab59ddab08d442f81ed1c1ac735ad57
  
Dropped by
MD5 81079114169c3dc1157888168cd88c82
  
Dropped by
SHA256 e13b5c76e67e9bc7d731f4a36fa0b9b15c661bac4f35f8bc92e7c61a526f4811
  
Dropped by
MD5 56f259a2768f693e642ec56a177ad82d

Comments