MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a44cc5b971dcc6bb80c84e850b2529ef6f3e78cc24ce574ae3d2daacc8b9ea51. 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 15 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a44cc5b971dcc6bb80c84e850b2529ef6f3e78cc24ce574ae3d2daacc8b9ea51
SHA3-384 hash: c0be7503f2b97cd4c60633bf04dc9e4908e9b44bc39bb0c7750b27b665eaebabac7bb2a46190a286b2e755d64f65305a
SHA1 hash: 32a887dd95ee47ceb60710060416992859db380b
MD5 hash: da5719cd690f52bd6ac6326605b0fccc
humanhash: fillet-johnny-batman-mississippi
File name:rFiyatteklifiIs.bat
Download: download sample
Signature AgentTesla
Create hunting rule
File size:678'400 bytes
First seen:2024-02-14 13:47:35 UTC
Last seen:2024-02-14 15:27:23 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:Wc/xeQ5vziw7D7yPIn7AqBmgIFqA6Uh7hOpzhHEgn0g3IUp004xWE:briID7ydq8gmqTIhOpFT0qbCC
Threatray 5'769 similar samples on MalwareBazaar
TLSH T1C1E423A262B4473BC56E03FAC4F4158247F222A43844CB47AFD224DD647778AC656FBB
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)
Reporter FXOLabs
Tags:AgentTesla bat exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
303
Origin country :
BR BR
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
a44cc5b971dcc6bb80c84e850b2529ef6f3e78cc24ce574ae3d2daacc8b9ea51.exe
Verdict:
Malicious activity
Analysis date:
2024-02-14 14:20:12 UTC
Tags:
agenttesla stealer
Link:
https://app.any.run/tasks/97ea1b56-ecae-45fd-8319-30153623950d

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/476188/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.2679.2360.20173.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Creating a process with a hidden window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Using the Windows Management Instrumentation requests
Creating a file in the %AppData% subdirectories
Reading critical registry keys
Setting a keyboard event handler
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Stealing user critical data
Adding an exclusion to Microsoft Defender
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
lolbin masquerade packed shell32
Link:
https://www.filescan.io/uploads/65ccc49b721c476da6b353e6/reports/2850e6db-8f55-4588-bb4f-52bf8d607c1d/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/a44cc5b971dcc6bb80c84e850b2529ef6f3e78cc24ce574ae3d2daacc8b9ea51
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/d25b5c23-5243-4082-840e-f6c2606570b8
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1392192
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Adds a directory exclusion to Windows Defender
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Contains functionality to log keystrokes (.Net Source)
Contains functionality to register a low level keyboard hook
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Installs a global keyboard hook
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
Snort IDS alert for network traffic
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Yara detected AgentTesla
Yara detected AntiVM3
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1392192 Sample: rFiyatteklifiIs.bat.exe Startdate: 14/02/2024 Architecture: WINDOWS Score: 100 34 mail.newstar-eg.com 2->34 46 Snort IDS alert for network traffic 2->46 48 Found malware configuration 2->48 50 Malicious sample detected (through community Yara rule) 2->50 52 11 other signatures 2->52 8 rFiyatteklifiIs.bat.exe 4 2->8         started        11 ctsdvwT.exe 3 2->11         started        13 ctsdvwT.exe 2->13         started        signatures3 process4 signatures5 54 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 8->54 56 Adds a directory exclusion to Windows Defender 8->56 58 Injects a PE file into a foreign processes 8->58 15 rFiyatteklifiIs.bat.exe 1 5 8->15         started        20 powershell.exe 22 8->20         started        60 Antivirus detection for dropped file 11->60 62 Multi AV Scanner detection for dropped file 11->62 64 Machine Learning detection for dropped file 11->64 66 Contains functionality to register a low level keyboard hook 11->66 22 ctsdvwT.exe 2 11->22         started        24 ctsdvwT.exe 13->24         started        process6 dnsIp7 36 mail.newstar-eg.com 108.179.232.80, 49741, 587 UNIFIEDLAYER-AS-1US United States 15->36 30 C:\Users\user\AppData\Roaming\...\ctsdvwT.exe, PE32 15->30 dropped 32 C:\Users\user\...\ctsdvwT.exe:Zone.Identifier, ASCII 15->32 dropped 38 Tries to steal Mail credentials (via file / registry access) 15->38 40 Hides that the sample has been downloaded from the Internet (zone.identifier) 15->40 42 Installs a global keyboard hook 15->42 26 WmiPrvSE.exe 20->26         started        28 conhost.exe 20->28         started        44 Tries to harvest and steal browser information (history, passwords, etc) 24->44 file8 signatures9 process10
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/a44cc5b971dcc6bb80c84e850b2529ef6f3e78cc24ce574ae3d2daacc8b9ea51
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a44cc5b971dcc6bb80c84e850b2529ef6f3e78cc24ce574ae3d2daacc8b9ea51/
Threat name:
ByteCode-MSIL.Trojan.SnakeKeylogger
Create hunting rule
Status:
Malicious
First seen:
2024-02-13 10:53:46 UTC
File Type:
PE (.Net Exe)
Extracted files:
9
AV detection:
17 of 24 (70.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=urgmlolr3tdlxagij2cqwjjj55xt46gmethfosxd2lnkzsfz5jiq._file
Verdict:
malicious
Label(s):
agenttesla_v4
Create hunting rule
agenttesla
Create hunting rule
Similar samples:
170e1af5e1a12cee780b43feee20741951ea23187706a1a104e82c833075cb0a
AgentTesla
2288a6cd829317786fbf8c7cbbc225457b84cd39ad59010d33dc2669199dedd9
AgentTesla
5932d82e19bc8b6ef0b3c97e99e747ac4c840eb2966df4215ded42e443cb5b14
AgentTesla
8d02b67220fe803ed743dfd587acea589dae4b412fad339c97efb0866adf8494
AgentTesla
a44cc5b971dcc6bb80c84e850b2529ef6f3e78cc24ce574ae3d2daacc8b9ea51
AgentTesla
e7ffc4214d13d6bec7c08d1ff409516585461baf790bc99ccd1e5d58c7203d11
AgentTesla
+ 5'759 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/240214-q34mlacb8y/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Checks computer location settings
Reads user/profile data of local email clients
Reads user/profile data of web browsers
AgentTesla
Unpacked files
SH256 hash:
a4cca973845be572ae19b737afbb7b39219c71f3957d4d74a27ec220ceb7ac94
MD5 hash:
60a1b747f6b2a02a2e3f1ae9a01d32c4
SHA1 hash:
a2368f8691ffa3fde80f14c8b2ea99f1dd836ecb
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/5510dc3c-17ee-42e2-bfbb-d1c5e8e38c00/
Parent samples :
2288a6cd829317786fbf8c7cbbc225457b84cd39ad59010d33dc2669199dedd9
170e1af5e1a12cee780b43feee20741951ea23187706a1a104e82c833075cb0a
4bcbede0164a58dccab4388e3d4711e0b5b7f3e49ee55e426814ffb9b1851a4c
8d02b67220fe803ed743dfd587acea589dae4b412fad339c97efb0866adf8494
5932d82e19bc8b6ef0b3c97e99e747ac4c840eb2966df4215ded42e443cb5b14
2f71841507ae235d6b437c365283259c64330c41b713d445ca26acec3bd9799f
d8039e061ab928dedfa6fe3b92f61f223d076ea4c22749617bf706eb20cc7f2c
e7ffc4214d13d6bec7c08d1ff409516585461baf790bc99ccd1e5d58c7203d11
4e3966d7930bad5fe06070c32506ec910ca8c79386a91384b21ef9b89ef6bc9b
a44cc5b971dcc6bb80c84e850b2529ef6f3e78cc24ce574ae3d2daacc8b9ea51
SH256 hash:
0c68264370ac9ff98387d73ce3f2c88e187729bfcea0c984cb370d1097cfb2e4
MD5 hash:
47d8ad55cc18078cc513c50fb47d3335
SHA1 hash:
65931a98340c65a7aace74619368dee616b12137
Link:
https://www.unpac.me/results/5510dc3c-17ee-42e2-bfbb-d1c5e8e38c00/
SH256 hash:
5cd50bd7c921ee1da5cfe0b995b9951c4c8d10c01e2f29927c9afba7867bf73e
MD5 hash:
f8b026a81505827b0d59c5c273694dc3
SHA1 hash:
6116cdf1271cb0918683d77b8a1d670a79ba1e87
Link:
https://www.unpac.me/results/5510dc3c-17ee-42e2-bfbb-d1c5e8e38c00/
SH256 hash:
412032518d6624fff618f0e7585cd867427f1adbc5255c3ee9f1c11ac78051ca
MD5 hash:
2b52bb3666339ee246cc5594598c9e40
SHA1 hash:
065b9516cb21e3efa3d9bb682644df3b50fd97c7
Link:
https://www.unpac.me/results/5510dc3c-17ee-42e2-bfbb-d1c5e8e38c00/
SH256 hash:
a44cc5b971dcc6bb80c84e850b2529ef6f3e78cc24ce574ae3d2daacc8b9ea51
MD5 hash:
da5719cd690f52bd6ac6326605b0fccc
SHA1 hash:
32a887dd95ee47ceb60710060416992859db380b
Link:
https://www.unpac.me/results/5510dc3c-17ee-42e2-bfbb-d1c5e8e38c00/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a44cc5b971dc/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/a44cc5b971dcc6bb80c84e850b2529ef6f3e78cc24ce574ae3d2daacc8b9ea51

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:Multifamily_RAT_Detection
Create hunting rule
Author:Lucas Acha (http://www.lukeacha.com)
Description:Generic Detection for multiple RAT families, PUPs, Packers and suspicious executables
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.

Malspam

AgentTesla

Executable exe a44cc5b971dcc6bb80c84e850b2529ef6f3e78cc24ce574ae3d2daacc8b9ea51

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/476188/

Comments