MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 77b71576856185e15daeb6b0ad20b0745c744a8f14dad72c98f479f2802bf545. 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 16 File information Comments
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SHA256 hash: 77b71576856185e15daeb6b0ad20b0745c744a8f14dad72c98f479f2802bf545
SHA3-384 hash: edfc1fd15d1752b2e4b7a53187bb2c82cda772f32e6a4921db174cfe24c02ebb7404a900c881b910bb4eaa968055dee9
SHA1 hash: 30248c19af188a1f9ea8c2ad79ad93f7fb555e8a
MD5 hash: 1a2c080398d008170ab233e72f78c533
humanhash: cat-romeo-table-yankee
File name:SecuriteInfo.com.Win32.PWSX-gen.29803.2297
Download: download sample
Signature AgentTesla
Create hunting rule
File size:690'176 bytes
First seen:2024-02-13 10:26:27 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'749 x AgentTesla, 19'653 x Formbook, 12'246 x SnakeKeylogger)
ssdeep 12288:H8eQ5vzipMT9/+2sM/yKtymqyvNoei3ho7oJr8p9vTieNMm:crip4/+b2qyl3evo7
Threatray 239 similar samples on MalwareBazaar
TLSH T12BE412207AEB825CD9650BB2197086C243B67E9BBF44CB1E1C95660C8D73323C752FA7
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 :
503
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
77b71576856185e15daeb6b0ad20b0745c744a8f14dad72c98f479f2802bf545.exe
Verdict:
Malicious activity
Analysis date:
2024-02-13 10:27:25 UTC
Tags:
evasion stealer agenttesla
Link:
https://app.any.run/tasks/cf16d486-001f-42c1-9438-6bddf4f4bab0

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/475954/
Detection(s):
SecuriteInfo.com.Win32.PWSX-gen.29803.2297.UNOFFICIAL
Create hunting rule

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
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:
masquerade packed
Link:
https://www.filescan.io/uploads/65cb43fd54f1a1b63b6cc85c/reports/7cbf58f3-30b3-474f-b6ed-355035243a28/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/77b71576856185e15daeb6b0ad20b0745c744a8f14dad72c98f479f2802bf545
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/90b46da9-f58f-443f-87e8-06b028dd6923
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1391335
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Adds a directory exclusion to Windows Defender
Check if machine is in data center or colocation facility
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
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)
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)
Sample uses string decryption to hide its real strings
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Scheduled temp file as task from temp location
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 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
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1391335 Sample: SecuriteInfo.com.Win32.PWSX... Startdate: 13/02/2024 Architecture: WINDOWS Score: 100 44 us2.smtp.mailhostbox.com 2->44 46 ip-api.com 2->46 52 Found malware configuration 2->52 54 Malicious sample detected (through community Yara rule) 2->54 56 Sigma detected: Scheduled temp file as task from temp location 2->56 58 11 other signatures 2->58 8 SecuriteInfo.com.Win32.PWSX-gen.29803.2297.exe 7 2->8         started        12 iDUSUaYWZB.exe 2->12         started        signatures3 process4 file5 40 C:\Users\user\AppData\...\iDUSUaYWZB.exe, PE32 8->40 dropped 42 C:\Users\user\AppData\Local\...\tmp9989.tmp, XML 8->42 dropped 60 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 8->60 62 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 8->62 64 Uses schtasks.exe or at.exe to add and modify task schedules 8->64 72 2 other signatures 8->72 14 SecuriteInfo.com.Win32.PWSX-gen.29803.2297.exe 15 2 8->14         started        18 powershell.exe 23 8->18         started        20 powershell.exe 23 8->20         started        28 4 other processes 8->28 66 Multi AV Scanner detection for dropped file 12->66 68 Machine Learning detection for dropped file 12->68 70 Injects a PE file into a foreign processes 12->70 22 iDUSUaYWZB.exe 12->22         started        24 schtasks.exe 12->24         started        26 iDUSUaYWZB.exe 12->26         started        signatures6 process7 dnsIp8 48 ip-api.com 208.95.112.1, 49732, 49736, 80 TUT-ASUS United States 14->48 50 us2.smtp.mailhostbox.com 208.91.198.143, 49734, 49737, 587 PUBLIC-DOMAIN-REGISTRYUS United States 14->50 30 WmiPrvSE.exe 18->30         started        32 conhost.exe 18->32         started        34 conhost.exe 20->34         started        74 Tries to steal Mail credentials (via file / registry access) 22->74 76 Tries to harvest and steal browser information (history, passwords, etc) 22->76 36 conhost.exe 24->36         started        38 conhost.exe 28->38         started        signatures9 process10
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/77b71576856185e15daeb6b0ad20b0745c744a8f14dad72c98f479f2802bf545
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/77b71576856185e15daeb6b0ad20b0745c744a8f14dad72c98f479f2802bf545/
Threat name:
ByteCode-MSIL.Trojan.SnakeKeylogger
Create hunting rule
Status:
Malicious
First seen:
2024-02-13 07:10:42 UTC
File Type:
PE (.Net Exe)
Extracted files:
6
AV detection:
17 of 24 (70.83%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=o63rk5ufmgc6cxnow2yk2ifqorohisupctnnoley6r47fabl6vcq._file
Verdict:
malicious
Label(s):
agenttesla_v4
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agenttesla
Create hunting rule
Similar samples:
0615ef112cce9f3111818a05ca04def31168070e160976b0f9f914b1807ef5ba
AgentTesla
0ab9258ba53195ed9a0ee5473db7c1458f094e206371f31640750ba2e26f1f5e
AgentTesla
1370d337f24395dc30833b04e4166d1820bcfc70a947132f15849c81a8f55c64
AgentTesla
2747e5b776f659d7c7d53558362bd60d38aaddb74b33f8a92428caebef64c058
AgentTesla
fbe9af0d5f4eec35c73a7362af2c095693882f614e7fa42b9acdb0476bb5fb20
AgentTesla
+ 229 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger spyware stealer trojan
Link:
https://tria.ge/reports/240213-mg4hxsgh24/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Looks up external IP address via web service
Checks computer location settings
Reads user/profile data of local email clients
Reads user/profile data of web browsers
AgentTesla
Unpacked files
SH256 hash:
fc54823029807d6e407123480049bae0d155cce7b5b8c8159dbd668770c48294
MD5 hash:
e3b8b0e47c9641d226989d7c61f524f1
SHA1 hash:
df2b8545f3d4462ee363a1f62308aeb874744341
Link:
https://www.unpac.me/results/09119076-df8e-46a3-9d1a-b8a248d43080/
SH256 hash:
b67fd79a0a14d5e3aca0367018b70a4afb20fa26970a6780af57de49d40f5a29
MD5 hash:
26263d1e27d175692315f40959a38c85
SHA1 hash:
7d54b2a9dfca5897d9bb00b4a6a01b2e26a134c8
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_SUSPICIOUS_EXE_SandboxHookingDLL
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/09119076-df8e-46a3-9d1a-b8a248d43080/
Parent samples :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 hash:
5fe50b7d9a6e9214e727581ebb1dfeb43e175c39ba3966684030f5da4c0c64bf
MD5 hash:
f6b2186dd134aed59815a420cc5ccc8c
SHA1 hash:
569326a8f69da0b50854f18c86805b019cd902fd
Link:
https://www.unpac.me/results/09119076-df8e-46a3-9d1a-b8a248d43080/
SH256 hash:
ec84255a4c2694bc44062eb00b97642c4f7ff14e4518d32c2679a02e5318615b
MD5 hash:
80a6a471cbf9783b55ac0093c1939112
SHA1 hash:
21738fde900604a97277e223a52545bbd799b5df
Link:
https://www.unpac.me/results/09119076-df8e-46a3-9d1a-b8a248d43080/
SH256 hash:
77b71576856185e15daeb6b0ad20b0745c744a8f14dad72c98f479f2802bf545
MD5 hash:
1a2c080398d008170ab233e72f78c533
SHA1 hash:
30248c19af188a1f9ea8c2ad79ad93f7fb555e8a
Link:
https://www.unpac.me/results/09119076-df8e-46a3-9d1a-b8a248d43080/
Malware family:
AgentTesla
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/77b715768561/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/77b71576856185e15daeb6b0ad20b0745c744a8f14dad72c98f479f2802bf545

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
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Author:ditekshen
Description:AgentTeslaV3 infostealer payload
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
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_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: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_Trojan_AgentTesla_ebf431a8
Create hunting rule
Author:Elastic Security

File information

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

Cape
Cape
https://www.capesandbox.com/analysis/475954/

Comments