MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 643ec0d1bf2ed36dd15a6eae87f1a570c88be0cae6ccdf7179f705edd3291d38. 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 15 File information Comments
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SHA256 hash: 643ec0d1bf2ed36dd15a6eae87f1a570c88be0cae6ccdf7179f705edd3291d38
SHA3-384 hash: cacfa0cc98a933311bdb6b8964553079ed39f5e921390218a42ecb0e5c7c81a29695d401c957e3ddd3448f4d954e0be2
SHA1 hash: da72e8433731300cb4651d60909b850af47dcca4
MD5 hash: 9c93adc749374b8187372df173d3bc8a
humanhash: indigo-uranus-victor-river
File name:Quotation R2100131410.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:792'064 bytes
First seen:2024-02-20 18:27:00 UTC
Last seen:2024-02-21 13:24:58 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'597 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:bPBXFKVPFA1uqHXgLf7fPE3J0j/eZGAs2IIZdyuVGmyns+WDlAk4FTIPGYy:jZFKNFAMqHXgr7EidAbtZdFVifCSIP
TLSH T131F4020C0DB046B0C1BE577DA4010A118BBEA7531D77FB6E578174F6BE633A0EA6168B
TrID 60.4% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.8% (.SCR) Windows screen saver (13097/50/3)
8.7% (.EXE) Win64 Executable (generic) (10523/12/4)
5.4% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.1% (.EXE) Win16 NE executable (generic) (5038/12/1)
Reporter James_inthe_box
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
4
# of downloads :
310
Origin country :
US US
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/477116/
Detection(s):
Porcupine.Malware.58887.UNOFFICIAL
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Sanesecurity.Rogue.0hr.20240220-1140.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
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
Creating a process with a hidden window
Launching a process
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Using the Windows Management Instrumentation requests
DNS request
Connection attempt
Sending a custom TCP request
Reading critical registry keys
Setting a keyboard event handler
Stealing user critical data
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/65d4eefd26f1ddc579a23d77/reports/14638459-1841-42d1-a1d9-5feaae56c0f4/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/643ec0d1bf2ed36dd15a6eae87f1a570c88be0cae6ccdf7179f705edd3291d38
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/e49ac394-8649-4b26-bbfe-8520231f0fd9
Result
Threat name:
AgentTesla, PureLog Stealer
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Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1395543
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
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
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)
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
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
Yara detected AgentTesla
Yara detected AntiVM3
Yara detected Generic Downloader
Yara detected PureLog Stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1395543 Sample: Quotation R2100131410.exe Startdate: 20/02/2024 Architecture: WINDOWS Score: 100 40 mail.elec-qatar.com 2->40 42 api.ipify.org 2->42 48 Snort IDS alert for network traffic 2->48 50 Found malware configuration 2->50 52 Malicious sample detected (through community Yara rule) 2->52 54 15 other signatures 2->54 8 tXDVtwRSiBPjR.exe 5 2->8         started        11 Quotation R2100131410.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 tXDVtwRSiBPjR.exe 8->14         started        17 schtasks.exe 1 8->17         started        36 C:\Users\user\AppData\...\tXDVtwRSiBPjR.exe, PE32 11->36 dropped 38 C:\Users\user\AppData\Local\...\tmp2C8A.tmp, XML 11->38 dropped 62 Adds a directory exclusion to Windows Defender 11->62 64 Injects a PE file into a foreign processes 11->64 19 Quotation R2100131410.exe 15 2 11->19         started        22 powershell.exe 22 11->22         started        24 schtasks.exe 1 11->24         started        26 Quotation R2100131410.exe 11->26         started        signatures6 process7 dnsIp8 66 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 14->66 68 Tries to steal Mail credentials (via file / registry access) 14->68 70 Tries to harvest and steal browser information (history, passwords, etc) 14->70 28 conhost.exe 17->28         started        44 mail.elec-qatar.com 50.87.139.143, 49733, 49737, 587 UNIFIEDLAYER-AS-1US United States 19->44 46 api.ipify.org 104.26.12.205, 443, 49732, 49736 CLOUDFLARENETUS United States 19->46 72 Installs a global keyboard hook 19->72 30 WmiPrvSE.exe 22->30         started        32 conhost.exe 22->32         started        34 conhost.exe 24->34         started        signatures9 process10
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/643ec0d1bf2ed36dd15a6eae87f1a570c88be0cae6ccdf7179f705edd3291d38
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/643ec0d1bf2ed36dd15a6eae87f1a570c88be0cae6ccdf7179f705edd3291d38/
Threat name:
ByteCode-MSIL.Trojan.Taskun
Create hunting rule
Status:
Malicious
First seen:
2024-02-20 10:07:03 UTC
File Type:
PE (.Net Exe)
Extracted files:
5
AV detection:
15 of 38 (39.47%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=mq7mbun7f3jw3uk2n2xip4nfodeixygk43gn64lz64c63uzjdu4a._file
Verdict:
malicious
Label(s):
agenttesla_v4
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agenttesla
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Result
Malware family:
agenttesla
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Score:
  10/10
Tags:
family:agenttesla keylogger spyware stealer trojan
Link:
https://tria.ge/reports/240220-w3q96ach9t/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
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 data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
AgentTesla
Unpacked files
SH256 hash:
72638f4b30cc9dab51d31216991957bf1cd118b8a8743227b3e8f9c4805f7628
MD5 hash:
2a8240bba06e832ee5d136a0a7e5b5b9
SHA1 hash:
de49d9b33004a4a622a4279b3ee2b3e3e5cd012b
Link:
https://www.unpac.me/results/b75f1757-d0c6-478f-88cc-d233df196bdd/
SH256 hash:
8b3ab238b122d29b6d0eea5c4dc9e85b81c7a1b1f8afcebebd81b93498bf54f6
MD5 hash:
e5b0bf84fe7a139f42e19ad27dcea78f
SHA1 hash:
7e18c0c607c51e06f559c9f5d90a93531b60ee3c
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
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INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
Create hunting rule
Link:
https://www.unpac.me/results/b75f1757-d0c6-478f-88cc-d233df196bdd/
Parent samples :
a3389d421ad67e0668b58bca73585ae641047e2b9b0d798060b96f4ad0648477
643ec0d1bf2ed36dd15a6eae87f1a570c88be0cae6ccdf7179f705edd3291d38
2c42f0b638e46ffc233200f45ca9436c78fb424fc409574512774dfd3a0621a6
232dda5f15f635e041afce6e34f17ba284380475a14232e85856065bdd78f0be
b9008d07600af358e885fe396b52bbc6efbc135f7010e6aa6849c3af952dd9fb
5857b336d7d9853e12a8396380a452b1ea5c390a0409fb58ee6e7e77d9aabe00
SH256 hash:
ec592062c41d26d7046ab135fbabaf80e69900ba940ca654261cda17109f8769
MD5 hash:
09f7fb78314d30bf7c69d72caa9da978
SHA1 hash:
5536e0f86fe6e36f11e5ba03a8f559675dd82f30
Link:
https://www.unpac.me/results/b75f1757-d0c6-478f-88cc-d233df196bdd/
SH256 hash:
42e5bbee4b498550f505c1232326adbf9d5d23c7e90174eb142b4963b879fe7b
MD5 hash:
100a8095e042378d2c227eb0ff37b6d4
SHA1 hash:
32c4a6457d7c01e9e135c3750d571114bc0ef3a0
Link:
https://www.unpac.me/results/b75f1757-d0c6-478f-88cc-d233df196bdd/
SH256 hash:
b8fdfc56cb85bb8f4dbe482db5a229369df0c275cb2b6f2fe4eb436e0dabd4a8
MD5 hash:
629bea486a76ccc659172a4f0db2c0fa
SHA1 hash:
2b75f8cadd9a1a191e7d4233f048e0f2e13058a6
Link:
https://www.unpac.me/results/b75f1757-d0c6-478f-88cc-d233df196bdd/
SH256 hash:
643ec0d1bf2ed36dd15a6eae87f1a570c88be0cae6ccdf7179f705edd3291d38
MD5 hash:
9c93adc749374b8187372df173d3bc8a
SHA1 hash:
da72e8433731300cb4651d60909b850af47dcca4
Link:
https://www.unpac.me/results/b75f1757-d0c6-478f-88cc-d233df196bdd/
Malware family:
AgentTesla
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/643ec0d1bf2e/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
AgentTesla
Score:
0.90
Link:
https://yomi.yoroi.company/submissions/643ec0d1bf2ed36dd15a6eae87f1a570c88be0cae6ccdf7179f705edd3291d38

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
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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_Generic_Threat_9f4a80b2
Create hunting rule
Author:Elastic Security
Rule name:Windows_Trojan_AgentTesla_ebf431a8
Create hunting rule
Author:Elastic Security
Reference:https://www.elastic.co/security-labs/attack-chain-leads-to-xworm-and-agenttesla

File information

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

Malspam

AgentTesla

zip 492a6e78c52e03d832082a391b48a411c53b6319f569dfe94eabcf9e75de5e1f

AgentTesla

Executable exe 643ec0d1bf2ed36dd15a6eae87f1a570c88be0cae6ccdf7179f705edd3291d38

(this sample)

  
Delivery method
Other
Cape
Cape
https://www.capesandbox.com/analysis/477116/
  
Dropped by
SHA256 492a6e78c52e03d832082a391b48a411c53b6319f569dfe94eabcf9e75de5e1f
  
Dropped by
MD5 2c2af1800b8d168a223db2a529084482

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