MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 89b5371841e3eb63f290b60717e55ddfc8518803e14419d5c9ad3a6bf111c2c8. 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: 13


Intelligence 13 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 89b5371841e3eb63f290b60717e55ddfc8518803e14419d5c9ad3a6bf111c2c8
SHA3-384 hash: ac8534dd9559b377eb3be40256e7c4de7564d6fa342c29b55a0e86b945466aaf374fb462b3c492bd57ed53efa88d5279
SHA1 hash: e8fc4cb22b0a7e6f24c762b9bd809c8f10a82a84
MD5 hash: 38b3d465545a56ea977ba43dcda97b16
humanhash: echo-oklahoma-lithium-three
File name:cotización y diseños de muestra.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:2'820'096 bytes
First seen:2023-03-20 16:20:30 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
ssdeep 49152:rkvBmg2iRQHsne0LqnefX5qDRYVKSFzY7RlW:
Threatray 1'489 similar samples on MalwareBazaar
TLSH T1F1D5BFF286E3FEC4976F1D4480043A409C14286757BC96D8FDCA2A9793E5578EF9CAB0
TrID 56.5% (.EXE) Win64 Executable (generic) (10523/12/4)
11.0% (.ICL) Windows Icons Library (generic) (2059/9)
10.9% (.EXE) OS/2 Executable (generic) (2029/13)
10.7% (.EXE) Generic Win/DOS Executable (2002/3)
10.7% (.EXE) DOS Executable Generic (2000/1)
File icon (PE):PE icon
dhash icon 316dc989c8ce8e89 (2 x RemcosRAT, 1 x NanoCore, 1 x AgentTesla)
Reporter malwarelabnet
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
254
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
cotización y diseños de muestra.exe
Verdict:
Malicious activity
Analysis date:
2023-03-20 16:29:00 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/d1f37187-ac82-4ed8-983b-2043cade92cf

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/375981/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Launching a process
Creating a process with a hidden window
Creating a file in the %temp% directory
Creating a process from a recently created file
Creating a file
Using the Windows Management Instrumentation requests
DNS request
Sending a custom TCP request
Creating a file in the %AppData% subdirectories
Reading critical registry keys
Creating a window
Unauthorized injection to a recently created process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Stealing user critical data
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
obfuscated warp
Link:
https://www.filescan.io/uploads/641887efe91ddba083cec435/reports/66a91d20-cc74-4f76-bcf5-976a7fa0a162/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/89b5371841e3eb63f290b60717e55ddfc8518803e14419d5c9ad3a6bf111c2c8
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/4b4ecf37-0789-4380-a9da-612a2ac801e0
Result
Threat name:
AgentTesla, zgRAT
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1197884
Signature
Antivirus detection for dropped file
Creates multiple autostart registry keys
Encrypted powershell cmdline option found
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
May check the online IP address of the machine
Modifies the context of a thread in another process (thread injection)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
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)
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected Generic Downloader
Yara detected zgRAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 830792 Sample: cotizaci#U00f3n_y_dise#U00f... Startdate: 20/03/2023 Architecture: WINDOWS Score: 100 42 168.98.4.0.in-addr.arpa 2->42 44 api4.ipify.org 2->44 46 api.ipify.org 2->46 66 Malicious sample detected (through community Yara rule) 2->66 68 Multi AV Scanner detection for submitted file 2->68 70 Yara detected zgRAT 2->70 72 4 other signatures 2->72 8 cotizaci#U00f3n_y_dise#U00f1os_de_muestra.exe 1 8 2->8         started        12 KbWSe.exe 7 2->12         started        15 KbWSe.exe 2->15         started        17 2 other processes 2->17 signatures3 process4 dnsIp5 34 C:\Users\user\AppData\Local\explorers.exe, PE32+ 8->34 dropped 36 C:\Users\user\...\Hxpqwdnjsynypvjkzfile.exe, PE32 8->36 dropped 38 C:\Users\...\explorers.exe:Zone.Identifier, ASCII 8->38 dropped 40 cotizaci#U00f3n_y_..._de_muestra.exe.log, ASCII 8->40 dropped 82 Encrypted powershell cmdline option found 8->82 84 Creates multiple autostart registry keys 8->84 86 Writes to foreign memory regions 8->86 100 2 other signatures 8->100 19 Hxpqwdnjsynypvjkzfile.exe 17 9 8->19         started        24 powershell.exe 15 8->24         started        26 InstallUtil.exe 8->26         started        54 smtp.thanhphoung-vn.com 12->54 56 104.237.62.211, 443, 49704 WEBNXUS United States 12->56 62 5 other IPs or domains 12->62 88 Antivirus detection for dropped file 12->88 90 Multi AV Scanner detection for dropped file 12->90 92 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 12->92 102 3 other signatures 12->102 58 smtp.thanhphoung-vn.com 15->58 60 208.91.199.225, 49709, 587 PUBLIC-DOMAIN-REGISTRYUS United States 15->60 64 3 other IPs or domains 15->64 94 Tries to steal Mail credentials (via file / registry access) 15->94 96 Tries to harvest and steal browser information (history, passwords, etc) 15->96 98 Machine Learning detection for dropped file 17->98 28 powershell.exe 17->28         started        file6 signatures7 process8 dnsIp9 48 smtp.thanhphoung-vn.com 19->48 50 api4.ipify.org 173.231.16.76, 443, 49701, 49705 WEBNXUS United States 19->50 52 2 other IPs or domains 19->52 32 C:\Users\user\AppData\Roaming\...\KbWSe.exe, PE32 19->32 dropped 74 Antivirus detection for dropped file 19->74 76 Multi AV Scanner detection for dropped file 19->76 78 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 19->78 80 7 other signatures 19->80 30 conhost.exe 24->30         started        file10 signatures11 process12
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/89b5371841e3eb63f290b60717e55ddfc8518803e14419d5c9ad3a6bf111c2c8/
Threat name:
Win64.Trojan.Nekark
Create hunting rule
Status:
Malicious
First seen:
2023-03-20 15:13:10 UTC
File Type:
PE+ (.Net Exe)
Extracted files:
5
AV detection:
14 of 24 (58.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=rg2togcb4pvwh4uqwydrpzk537efdcad4fcbtvojvu5gx4irylea._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
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9b2b9f8f70057a1d60700f490e59ae93972ce2fdfb852770ae08fdfff72a0611
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ba278e9a224009e14aa8b65a174afa76cd51e9a6fcfcf501d715abb7270d505c
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c89d8cc3c52b8b56669289df85876ab472b3451e459f18cfd35d7f74e24dc8fd
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d075f5c6238c71e75ed34f432a688ebd17ff37326b84338b53a4bc9ba2f2d917
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d6571f062d5171a70f5750fa082728fe3407c7ed8e8562913c1ff66437b569ae
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f1108b5eb80973aef37bd03b02d776a3bd44d9ec9425da749e4c8b22c0c16c67
AgentTesla
+ 1'479 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/230320-ttnfssgd7t/
Behaviour
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
Looks up external IP address via web service
Accesses Microsoft Outlook profiles
Adds Run key to start application
Checks computer location settings
Executes dropped EXE
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:
89b5371841e3eb63f290b60717e55ddfc8518803e14419d5c9ad3a6bf111c2c8
MD5 hash:
38b3d465545a56ea977ba43dcda97b16
SHA1 hash:
e8fc4cb22b0a7e6f24c762b9bd809c8f10a82a84
Link:
https://www.unpac.me/results/77c75270-ba7a-467a-aecf-566691fcb56c/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/89b5371841e3/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/89b5371841e3eb63f290b60717e55ddfc8518803e14419d5c9ad3a6bf111c2c8

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:BitcoinAddress
Create hunting rule
Author:Didier Stevens (@DidierStevens)
Description:Contains a valid Bitcoin address
Rule name:INDICATOR_EXE_Packed_SmartAssembly
Create hunting rule
Author:ditekSHen
Description:Detects executables packed with SmartAssembly

File information

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

Cape
Cape
https://www.capesandbox.com/analysis/375981/

Comments