MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a33803880a7011fde879599d4cffcc41ec701e503677a3d13b031a7fc3815d63. 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: 14


Intelligence 14 IOCs YARA 14 File information Comments
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SHA256 hash: a33803880a7011fde879599d4cffcc41ec701e503677a3d13b031a7fc3815d63
SHA3-384 hash: a491ccb32557f2c36f86bafa25dbce368ffef20a7fb8a3d173d06ec93567c37c5e600f027631334b69f83763c542e2b6
SHA1 hash: dfbd387d633a97243cae8baa7b31c27b7f577a83
MD5 hash: 487a6ead1c54713d1c37673c21aec397
humanhash: massachusetts-johnny-triple-carolina
File name:FİYAT TEKLİF İSTEĞİ_PDF.exe
Download: download sample
Signature AgentTesla
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File size:660'992 bytes
First seen:2024-02-07 09:35:22 UTC
Last seen:2024-02-07 11:35:14 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'741 x AgentTesla, 19'606 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:oWzxLvnA7Cu7XzqpbsWZmb61PXG7qIR9bPCMNmvEgRZ5z6zWTD/pgzFeY:zzx7nA7CmOsWZmb61xydK8msgX/DRgzF
TLSH T1D6E42300B3DC5526FABB37BA5BB0B6116B73FCA55030E36DDC8510DA1A2AB009D65B72
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 abuse_ch
Tags:AgentTesla exe geo TUR

Intelligence

File Origin
# of uploads :
2
# of downloads :
298
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
agenttesla
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ID:
1
File name:
a33803880a7011fde879599d4cffcc41ec701e503677a3d13b031a7fc3815d63.exe
Verdict:
Malicious activity
Analysis date:
2024-02-07 10:10:36 UTC
Tags:
agenttesla stealer
Link:
https://app.any.run/tasks/57a7890b-f2ec-4871-a095-86f6062b81e8

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.PWSX-gen.5708.10842.UNOFFICIAL
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Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/a33803880a7011fde879599d4cffcc41ec701e503677a3d13b031a7fc3815d63
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/def22177-a0a8-43b7-aea9-7e83646b9433
Result
Threat name:
AgentTesla
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Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1388217
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
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
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 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
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1388217 Sample: F#U0130YAT TEKL#U0130F #U01... Startdate: 07/02/2024 Architecture: WINDOWS Score: 100 44 cp5ua.hyperhost.ua 2->44 48 Found malware configuration 2->48 50 Malicious sample detected (through community Yara rule) 2->50 52 Sigma detected: Scheduled temp file as task from temp location 2->52 54 14 other signatures 2->54 8 VxTCknrW.exe 5 2->8         started        11 F#U0130YAT TEKL#U0130F #U0130STE#U011e#U0130_PDF.exe 7 2->11         started        signatures3 process4 file5 56 Multi AV Scanner detection for dropped file 8->56 58 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 8->58 60 Machine Learning detection for dropped file 8->60 14 VxTCknrW.exe 8->14         started        17 schtasks.exe 8->17         started        40 C:\Users\user\AppData\Roaming\VxTCknrW.exe, PE32 11->40 dropped 42 C:\Users\user\AppData\Local\...\tmp1950.tmp, XML 11->42 dropped 62 Adds a directory exclusion to Windows Defender 11->62 19 F#U0130YAT TEKL#U0130F #U0130STE#U011e#U0130_PDF.exe 2 11->19         started        22 powershell.exe 23 11->22         started        24 powershell.exe 23 11->24         started        26 schtasks.exe 1 11->26         started        signatures6 process7 dnsIp8 64 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 14->64 66 Tries to steal Mail credentials (via file / registry access) 14->66 68 Tries to harvest and steal browser information (history, passwords, etc) 14->68 28 conhost.exe 17->28         started        46 cp5ua.hyperhost.ua 91.235.128.141, 49708, 49718, 49719 ITLASUA Ukraine 19->46 30 conhost.exe 22->30         started        32 WmiPrvSE.exe 22->32         started        34 conhost.exe 22->34         started        36 conhost.exe 24->36         started        38 conhost.exe 26->38         started        signatures9 process10
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/a33803880a7011fde879599d4cffcc41ec701e503677a3d13b031a7fc3815d63
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a33803880a7011fde879599d4cffcc41ec701e503677a3d13b031a7fc3815d63/
Threat name:
ByteCode-MSIL.Trojan.SnakeKeylogger
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Status:
Malicious
First seen:
2024-02-07 07:47:22 UTC
File Type:
PE (.Net Exe)
Extracted files:
5
AV detection:
19 of 23 (82.61%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=um4ahcakoai732dzlgouz76mihwhahsqgz32huj3amnh7q4blvrq._file
Verdict:
malicious
Label(s):
agenttesla_v4
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agenttesla
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Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Link:
https://tria.ge/reports/240207-lk5pqafeb5/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Checks computer location settings
Unpacked files
SH256 hash:
336e9e705854bc5e75fc416b2adbe511c8d43543699f993b396b7e72b723f797
MD5 hash:
f2bca1d28aa09daa02ea4bf8b6392204
SHA1 hash:
4f3a72099fe90ccb7b670376cc89b5158d36bcf1
Detections:
AgentTesla
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win_agent_tesla_g2
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INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
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Agenttesla_type2
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INDICATOR_SUSPICIOUS_Binary_References_Browsers
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INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
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INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
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INDICATOR_EXE_Packed_GEN01
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INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
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Link:
https://www.unpac.me/results/1b27c2dd-6373-4e56-88c2-25b865867e9c/
Parent samples :
928981544d9cdcd238de5d584d382470e45afbea75a50194f7d4188c6a41e181
33694dd972ad25df68a2d911d32b9a2797c4319c6e8f17224b332c2d4c6f2bc6
b5deb3a04bc823e2177189360ba4b1cacaf393633d88512a338baccf2a8ac306
bb697fb1969ee65ad80d8eba82424720caace8fca25808d802ba5b4d76d91a6e
7499ea0523bd072c10a0e70e1888c25996a26aa04ea89c016258a0c5b320bdd1
44d6f874279cb00fe35d14f37b18944bdde471ed39732e3ec7cac9aed59039f2
d5d71b4ba13c6a8f154163c71f515dc26f64b61c6849af78e5aadc0356b86f89
e615bd88ac5bd226b4cf4d0893aa6a6ff8b1dfa91bf048218cf8dbba623c2796
15de6d1a92b4f26a9220a4f8e38d3c774b0f294d311886d23ffd1c99d493d7f0
25241c7c866e6b65d14222f6519d6bbf9c1d964f1df81cd25f1ad2823fb0f440
f176b9c927812fa98dc624b2abc3aa614f0ffa69c2bd0a91dc9814e94f88f34b
a33803880a7011fde879599d4cffcc41ec701e503677a3d13b031a7fc3815d63
18df826503335194846ee7331de2fdabaec55d193e96ac07e3be7c79c64da882
SH256 hash:
074d4f6edd39480451ed70ada538fcf415b18bab183e5e5abb9b3c0eb134aa42
MD5 hash:
0825a5aa21bee8e6fde46f413392cd5e
SHA1 hash:
25edc7aab490603da007e2dc31b9f3fbe64fe069
Link:
https://www.unpac.me/results/1b27c2dd-6373-4e56-88c2-25b865867e9c/
SH256 hash:
ad0bc674821a0f34da0a4a8bb5f26873422f28450588c8f608c511a2a235f88f
MD5 hash:
895b71db8bbb77762b4548bdf1c69235
SHA1 hash:
20e8e95d0b57df2056c85a28cffd942c263ca5c5
Link:
https://www.unpac.me/results/1b27c2dd-6373-4e56-88c2-25b865867e9c/
SH256 hash:
902a26befb60c57b83daba64daea923f928a382bc1dce38a12f27c49ada39bee
MD5 hash:
31268a3bc8bf7dde444f053e3bfe782c
SHA1 hash:
129205937a39c8372993002c11f3d4ec720acae6
Link:
https://www.unpac.me/results/1b27c2dd-6373-4e56-88c2-25b865867e9c/
SH256 hash:
a33803880a7011fde879599d4cffcc41ec701e503677a3d13b031a7fc3815d63
MD5 hash:
487a6ead1c54713d1c37673c21aec397
SHA1 hash:
dfbd387d633a97243cae8baa7b31c27b7f577a83
Link:
https://www.unpac.me/results/1b27c2dd-6373-4e56-88c2-25b865867e9c/
Malware family:
AgentTesla
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a33803880a70/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/a33803880a7011fde879599d4cffcc41ec701e503677a3d13b031a7fc3815d63

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: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
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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
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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
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Author:ditekSHen
Description:Detects executables referencing Windows vault credential objects. Observed in infostealers
Rule name:malware_Agenttesla_type2
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Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:NET
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Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
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Rule name:Skystars_Malware_Imphash
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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 a33803880a7011fde879599d4cffcc41ec701e503677a3d13b031a7fc3815d63

(this sample)

  
Delivery method
Distributed via e-mail attachment

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