MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 657c920b2a5333f8dfadd7fa40d1fa0e741526e4d539530961562f9db55ac27b. 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: 15


Intelligence 15 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 657c920b2a5333f8dfadd7fa40d1fa0e741526e4d539530961562f9db55ac27b
SHA3-384 hash: 835488cc1cbb52dd4b6624a55bf1a298539e5eeeece269d7502d719d105775a23aa381712efa07e921c8913faf0c5245
SHA1 hash: 6667d82f304bde8e23164beb4d0e2ee01533340f
MD5 hash: 07e1174aa10da669f830b7b855767b13
humanhash: delta-edward-beryllium-stairway
File name:Outstanding Invoices.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:909'312 bytes
First seen:2023-09-19 06:12:36 UTC
Last seen:2023-09-19 06:35:57 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'454 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 24576:IgNAdGgb3oxQYs/eB9nwwf+bJPhuc2yINiGNZ:IgaG2o6YZ9jVc2yI3N
Threatray 1'511 similar samples on MalwareBazaar
TLSH T17515F1AE3120729FD937C4F19A681E60AA31F6A7130B9547902335ADDACDAD3CF115F2
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) (4505/5/1)
File icon (PE):PE icon
dhash icon 1a394d6969695520 (3 x AgentTesla, 1 x SnakeKeylogger)
Reporter cocaman
Tags:AgentTesla exe INVOICE

Intelligence

File Origin
# of uploads :
2
# of downloads :
285
Origin country :
CH CH
Vendor Threat Intelligence
Detection:
AgentTesla
Create hunting rule
Link:
https://www.capesandbox.com/analysis/449562/
Detection(s):
SecuriteInfo.com.Trojan.DownLoaderNET.710.22699.15073.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a process with a hidden window
Launching a process
Adding an exclusion to Microsoft Defender
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
masquerade packed
Link:
https://www.filescan.io/uploads/65093bf00870810f0181d3f6/reports/bcd1ba94-685c-417f-a10a-0d62b6a1f5f7/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/657c920b2a5333f8dfadd7fa40d1fa0e741526e4d539530961562f9db55ac27b
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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/0f490a24-7182-4f4b-8634-4a826711afcc
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1310553
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
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
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: Scheduled temp file as task from temp location
Snort IDS alert for network traffic
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
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected AntiVM3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1310553 Sample: Outstanding_Invoices.exe Startdate: 19/09/2023 Architecture: WINDOWS Score: 100 52 Snort IDS alert for network traffic 2->52 54 Found malware configuration 2->54 56 Antivirus / Scanner detection for submitted sample 2->56 58 9 other signatures 2->58 7 Outstanding_Invoices.exe 7 2->7         started        11 ljLkbyNLGCVm.exe 5 2->11         started        13 fCVSa.exe 2->13         started        15 fCVSa.exe 2->15         started        process3 file4 46 C:\Users\user\AppData\...\ljLkbyNLGCVm.exe, PE32 7->46 dropped 48 C:\Users\user\AppData\Local\...\tmp2E7F.tmp, XML 7->48 dropped 70 Uses schtasks.exe or at.exe to add and modify task schedules 7->70 72 Writes to foreign memory regions 7->72 74 Allocates memory in foreign processes 7->74 82 2 other signatures 7->82 17 RegSvcs.exe 2 4 7->17         started        22 powershell.exe 21 7->22         started        24 powershell.exe 21 7->24         started        26 schtasks.exe 1 7->26         started        76 Antivirus detection for dropped file 11->76 78 Multi AV Scanner detection for dropped file 11->78 80 Machine Learning detection for dropped file 11->80 28 RegSvcs.exe 11->28         started        30 schtasks.exe 11->30         started        32 conhost.exe 13->32         started        34 conhost.exe 15->34         started        signatures5 process6 dnsIp7 50 mail.unitechautomations.com 192.185.129.60, 49698, 49699, 49700 UNIFIEDLAYER-AS-1US United States 17->50 44 C:\Users\user\AppData\Roaming\...\fCVSa.exe, PE32 17->44 dropped 60 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 17->60 62 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 17->62 64 Tries to steal Mail credentials (via file / registry access) 17->64 36 conhost.exe 22->36         started        38 conhost.exe 24->38         started        40 conhost.exe 26->40         started        66 Tries to harvest and steal browser information (history, passwords, etc) 28->66 68 Hides that the sample has been downloaded from the Internet (zone.identifier) 28->68 42 conhost.exe 30->42         started        file8 signatures9 process10
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/657c920b2a5333f8dfadd7fa40d1fa0e741526e4d539530961562f9db55ac27b/
Threat name:
ByteCode-MSIL.Trojan.Spynoon
Create hunting rule
Status:
Malicious
First seen:
2023-09-18 10:31:28 UTC
File Type:
PE (.Net Exe)
Extracted files:
9
AV detection:
21 of 36 (58.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=mv6jeczkkmz7rx5n275ebup2bz2bkjxe2u4vgclbkyxz3nk2yj5q._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
099239f804cec77a75d9142dbc302c3c75fb607ec967d9ee38ea1eb21b392a49
AgentTesla
132c3c334f0c7c02b5cd1aeb6c89ae8b7355c07d4c1683f3287168188cd958ea
AgentTesla
31c6c7f4f9e823b8a466fd0078d28879370d54ecd53fd4038cd21c38cdf6ba3e
AgentTesla
56b42ce524e101188605f0c0f6efaa7f4e77f4754dcb62607e6b53c45e4952be
AgentTesla
ce5546e8bc7a298f9bd3506d36462eaf20f2d10f12605db2784f40b21d2207b0
AgentTesla
def920207a8b0b441f3744dac84c6f67c8f1ba6d84d31a3beeda75ccdf510d85
AgentTesla
e1453fb8c21b01fc95b2441e260e982516915d11c34c6e25f5208c173bed72df
AgentTesla
e215e9e90f3aa064ca0df91993ab91f086fe918e72c05de21307b75b1cd164ec
AgentTesla
eca31a8b84856348ea97f1a1469c8b34f6afc80b79e5a0d40fca44f2a4139d0f
AgentTesla
+ 1'501 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla collection keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/230919-gyq19shc78/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
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
Checks computer location settings
AgentTesla
Unpacked files
SH256 hash:
7460f59e5bc86f23a036e318ce77bfdf46f227b4185be51a48fca3c70cf8380b
MD5 hash:
0fa631bad63f69154aa53eada6c418b4
SHA1 hash:
f52a33d76e573f42ac5c9bdc9f65e4e91229f80f
Link:
https://www.unpac.me/results/e8a5d88a-8185-45ff-915d-737cdace2eb0/
SH256 hash:
4a8d70ece798fb6955e46bdb4b4813924a3bbcf205e585fd0aef148123a44489
MD5 hash:
3bcd5e9d69da03ebe27b9c2e472d9e8d
SHA1 hash:
aa268bd00ed60a5907b4b2a669ddd21a1b8bb4da
Link:
https://www.unpac.me/results/e8a5d88a-8185-45ff-915d-737cdace2eb0/
SH256 hash:
eb86083196618495db7e96ee0f94fbf15c5a4b1b435b50d5096cef76cc37e258
MD5 hash:
e1e657881ecf07639b35fdbb465f6ed6
SHA1 hash:
93b145210502dae87dd88fd6b848f54818f021ad
Detections:
AgentTesla
Create hunting rule
Link:
https://www.unpac.me/results/e8a5d88a-8185-45ff-915d-737cdace2eb0/
Parent samples :
99e3eacb8e3e7a864986921418025df3e67f4e8e0c0c63337a7e58ce7e810ed5
bb455210f31c280bcc19cf45abe2c1c4dada8e2f97d37f6241b8a299b2232813
657c920b2a5333f8dfadd7fa40d1fa0e741526e4d539530961562f9db55ac27b
99a8dbacf70de531b3f0fe81ab684aebb845ddf2148942548edbb23f239aa487
SH256 hash:
784d4e0af30bcca58d54f86b6966e1c147bcc194a99126ebe79538e9084f6d80
MD5 hash:
5caf74e6818e40e82651781613a42425
SHA1 hash:
2a182b1552373e0907bfd03db31120596df994d0
Link:
https://www.unpac.me/results/e8a5d88a-8185-45ff-915d-737cdace2eb0/
SH256 hash:
657c920b2a5333f8dfadd7fa40d1fa0e741526e4d539530961562f9db55ac27b
MD5 hash:
07e1174aa10da669f830b7b855767b13
SHA1 hash:
6667d82f304bde8e23164beb4d0e2ee01533340f
Link:
https://www.unpac.me/results/e8a5d88a-8185-45ff-915d-737cdace2eb0/
Malware family:
AgentTesla.v4
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/657c920b2a53/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/657c920b2a5333f8dfadd7fa40d1fa0e741526e4d539530961562f9db55ac27b

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: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 b8f1244aaaba13101d1c19281b9c5be5cdc17bafd66a8310f2657cdb8ecc27a8

AgentTesla

Executable exe 657c920b2a5333f8dfadd7fa40d1fa0e741526e4d539530961562f9db55ac27b

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 b8f1244aaaba13101d1c19281b9c5be5cdc17bafd66a8310f2657cdb8ecc27a8
Cape
Cape
https://www.capesandbox.com/analysis/449562/
  
Dropped by
MD5 26e97d99a1331bd76b45555c79cbb9f2

Comments