MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a99019e3753a7babc2108dc67c77be0d5914b23051b1fd7a07f2b3a3ba840559. 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 8 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a99019e3753a7babc2108dc67c77be0d5914b23051b1fd7a07f2b3a3ba840559
SHA3-384 hash: 71889c41d00632398389be7a89ef051df282ca89f18bf28e346aac808169a3ee5df870f5444262e7c2eb7e2ed58fb529
SHA1 hash: 7aaa82927f61f8780ce5a598df41ad9d4141ebe9
MD5 hash: 4835892c035b5d75a7a67906519daa6b
humanhash: helium-carolina-oscar-may
File name:07-28-23_OSME_PO#PHP020622-001_.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:194'237 bytes
First seen:2023-07-26 05:51:08 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 741 x AgentTesla, 427 x GuLoader)
ssdeep 3072:XfY/TU9fE9PEtuqbw/jjjl5TfvZWdI6WFLDjEHmIxtG3MU8nhhAmQb3i8DRBUM1M:PYa6awrjjXZJ6o0H3lhAh3iuUMpcd
Threatray 1'693 similar samples on MalwareBazaar
TLSH T15C14021573E1C0A7D5B30EB11E7A6B79AFB7F4115490A70723C06E5E7AA3180ED1E312
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter lowmal3
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
274
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
07-28-23_OSME_PO#PHP020622-001_.exe
Verdict:
Malicious activity
Analysis date:
2023-07-26 05:52:38 UTC
Tags:
agenttesla stealer
Link:
https://app.any.run/tasks/d6f5b79e-6915-40f7-b875-1cd0af15c517

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/433343/
Detection(s):
SecuriteInfo.com.Trojan.Garf.Gen.14.6797.31093.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a window
Creating a file
Creating a file in the %AppData% subdirectories
Unauthorized injection to a recently created process
Restart of the analyzed sample
Using the Windows Management Instrumentation requests
Сreating synchronization primitives
DNS request
Sending a custom TCP request
Reading critical registry keys
Sending an HTTP GET request
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Stealing user critical data
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
control lolbin overlay packed shell32
Link:
https://www.filescan.io/uploads/64c0b483bf0894a95b71785c/reports/8e509172-669e-4f9f-b496-3ba80b70a477/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/a99019e3753a7babc2108dc67c77be0d5914b23051b1fd7a07f2b3a3ba840559
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/c77d0e9d-79c5-4ed9-87fd-42020a7b3f09
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1279823
Signature
Creates multiple autostart registry keys
Detected unpacking (creates a PE file in dynamic memory)
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
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
Maps a DLL or memory area into another process
May check the online IP address of the machine
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
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)
Yara detected AgentTesla
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1279823 Sample: 07-28-23_OSME_PO#PHP020622-... Startdate: 26/07/2023 Architecture: WINDOWS Score: 100 54 Found malware configuration 2->54 56 Multi AV Scanner detection for dropped file 2->56 58 Multi AV Scanner detection for submitted file 2->58 60 5 other signatures 2->60 6 07-28-23_OSME_PO#PHP020622-001_.exe 1 20 2->6         started        10 wsclhqavfbkso.exe 18 2->10         started        12 wsclhqavfbkso.exe 18 2->12         started        14 wsclhqavfbkso.exe 2->14         started        process3 file4 24 C:\Users\user\AppData\...\wsclhqavfbkso.exe, PE32 6->24 dropped 26 C:\Users\user\AppData\Local\...\jqpbrrw.dll, PE32 6->26 dropped 62 Detected unpacking (creates a PE file in dynamic memory) 6->62 64 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 6->64 66 May check the online IP address of the machine 6->66 74 2 other signatures 6->74 16 07-28-23_OSME_PO#PHP020622-001_.exe 17 10 6->16         started        28 C:\Users\user\AppData\Local\...\jqpbrrw.dll, PE32 10->28 dropped 68 Multi AV Scanner detection for dropped file 10->68 70 Machine Learning detection for dropped file 10->70 72 Maps a DLL or memory area into another process 10->72 20 wsclhqavfbkso.exe 14 7 10->20         started        30 C:\Users\user\AppData\Local\...\jqpbrrw.dll, PE32 12->30 dropped 22 wsclhqavfbkso.exe 7 12->22         started        signatures5 process6 dnsIp7 32 tefoc.com 103.14.121.180, 49696, 49699, 49701 GDRPL-INGoodDomainRegistryPrivateLimitedIN India 16->32 34 x1.i.lencr.org 16->34 42 4 other IPs or domains 16->42 46 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 16->46 48 Tries to steal Mail credentials (via file / registry access) 16->48 50 Creates multiple autostart registry keys 16->50 36 mail.tefoc.com 20->36 44 3 other IPs or domains 20->44 38 mail.tefoc.com 22->38 40 api.ipify.org 22->40 52 Tries to harvest and steal browser information (history, passwords, etc) 22->52 signatures8
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/a99019e3753a7babc2108dc67c77be0d5914b23051b1fd7a07f2b3a3ba840559/
Threat name:
Win32.Trojan.Leonem
Create hunting rule
Status:
Malicious
First seen:
2023-07-25 23:05:38 UTC
File Type:
PE (Exe)
Extracted files:
2
AV detection:
28 of 37 (75.68%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=vgibty3vhj52xqqqrxdhy556bvmrjmrqkgy726qh6kz2houeavmq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
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a9da850395755704d33ff8c4c5f469dfcbcec9f373a5cf5b0b3290dff2a5c43f
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d50074d48914764b355b89e387636cfbc2d5f5daf17b8afee1490c176afccfbf
AgentTesla
+ 1'683 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla collection keylogger persistence spyware stealer trojan upx
Link:
https://tria.ge/reports/230726-gkq44shh8w/
Behaviour
Modifies system certificate store
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Enumerates physical storage devices
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Adds Run key to start application
Looks up external IP address via web service
Loads dropped DLL
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
UPX packed file
AgentTesla
Unpacked files
SH256 hash:
a99019e3753a7babc2108dc67c77be0d5914b23051b1fd7a07f2b3a3ba840559
MD5 hash:
4835892c035b5d75a7a67906519daa6b
SHA1 hash:
7aaa82927f61f8780ce5a598df41ad9d4141ebe9
Link:
https://www.unpac.me/results/c8e12cb1-263c-471e-bb11-79d004446c3c/
Malware family:
AgentTesla.v4
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a99019e3753a/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/a99019e3753a7babc2108dc67c77be0d5914b23051b1fd7a07f2b3a3ba840559

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:AgentTeslaV4
Create hunting rule
Author:Rony (r0ny_123)
Rule name:cobalt_strike_tmp01925d3f
Create hunting rule
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:INDICATOR_EXE_Packed_GEN01
Create hunting rule
Author:ditekSHen
Description:Detect packed .NET executables. Mostly AgentTeslaV4.
Rule name:MSIL_SUSP_OBFUSC_XorStringsNet
Create hunting rule
Author:dr4k0nia
Description:Detects XorStringsNET string encryption, and other obfuscators derived from it
Reference:https://github.com/dr4k0nia/yara-rules
Rule name:msil_susp_obf_xorstringsnet
Create hunting rule
Author:dr4k0nia
Description:Detects XorStringsNET string encryption, and other obfuscators derived from it
Rule name:pe_imphash
Create hunting rule
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
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

Executable exe a99019e3753a7babc2108dc67c77be0d5914b23051b1fd7a07f2b3a3ba840559

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/433343/

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