MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 db77d447402dda806b6817fba4b619789e8af03233d9a08414d400538b2bedbc. 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: 11


Intelligence 11 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: db77d447402dda806b6817fba4b619789e8af03233d9a08414d400538b2bedbc
SHA3-384 hash: eb13bef8330ea3a53b7212f0161ad2690d07a63634db40557b71ee6cdbd809c278980877942dbc7bdb423795237ac5b2
SHA1 hash: 740955871726e28fb9b110989f4ee98ee00be26a
MD5 hash: 954f8a5432fcf4567a25a5cdff191572
humanhash: arizona-nineteen-blue-illinois
File name:gucc.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:843'776 bytes
First seen:2023-08-10 13:31:07 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'452 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 24576:TfRs6CE3jLMpppdpppppUO9Rs6CE3jLMpppdpppppUOMUF4T1oMeryzf1tjQT5:TfRs6CE3jLbO9Rs6CE3jLbOMNqLWT1pQ
Threatray 7 similar samples on MalwareBazaar
TLSH T11B050726E77B645AEF19A5E88E2F847238D6DCC0F1B1C588A7E72C0385C23514D35BE6
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)
Reporter James_inthe_box
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
283
Origin country :
US US
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
gucc.exe
Verdict:
Malicious activity
Analysis date:
2023-08-10 13:32:09 UTC
Tags:
stealer agenttesla
Link:
https://app.any.run/tasks/f0cfab76-a952-4cc4-a04c-7ea58664965e

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/441945/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.2263.14041.2969.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Sending a custom TCP request
Verdict:
No Threat
Threat level:
  10/10
Confidence:
100%
Tags:
control lolbin packed replace
Link:
https://www.filescan.io/uploads/64d4e6d42a1db2a88ac74ddd/reports/889a47ed-9571-4490-866f-cf69e3a33b21/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Link:
https://www.hybrid-analysis.com/sample/db77d447402dda806b6817fba4b619789e8af03233d9a08414d400538b2bedbc
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/c5f30bab-6ffe-46a1-b260-2b376891f613
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1289381
Signature
.NET source code contains method to dynamically call methods (often used by packers)
Found malware configuration
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
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
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1289381 Sample: gucc.exe Startdate: 10/08/2023 Architecture: WINDOWS Score: 100 29 Found malware configuration 2->29 31 Sigma detected: Scheduled temp file as task from temp location 2->31 33 Multi AV Scanner detection for submitted file 2->33 35 4 other signatures 2->35 7 gucc.exe 6 2->7         started        11 EWBWOzGLZ.exe 2 2->11         started        process3 file4 21 C:\Users\user\AppData\RoamingWBWOzGLZ.exe, PE32 7->21 dropped 23 C:\Users\user\AppData\Local\...\tmp2C44.tmp, XML 7->23 dropped 37 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->37 39 Uses schtasks.exe or at.exe to add and modify task schedules 7->39 41 Injects a PE file into a foreign processes 7->41 13 gucc.exe 2 7->13         started        17 schtasks.exe 1 7->17         started        43 Multi AV Scanner detection for dropped file 11->43 45 Machine Learning detection for dropped file 11->45 signatures5 process6 dnsIp7 25 us2.smtp.mailhostbox.com 208.91.198.143, 49737, 587 PUBLIC-DOMAIN-REGISTRYUS United States 13->25 27 192.168.2.1 unknown unknown 13->27 47 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 13->47 49 Tries to steal Mail credentials (via file / registry access) 13->49 51 Tries to harvest and steal browser information (history, passwords, etc) 13->51 19 conhost.exe 17->19         started        signatures8 process9
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/db77d447402dda806b6817fba4b619789e8af03233d9a08414d400538b2bedbc/
Threat name:
ByteCode-MSIL.Trojan.Spynoon
Create hunting rule
Status:
Malicious
First seen:
2023-08-10 13:30:03 UTC
File Type:
PE (.Net Exe)
Extracted files:
8
AV detection:
16 of 24 (66.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=3n35ir2afxnia23ic752jnqzpcpiv4bsgpm2bbau2qafhczl5w6a._file
Verdict:
unknown
Similar samples:
5de5abcd788af61be47ca63162f4c489b25f9903aea54b93729fe92914f17f6a
AgentTesla
95262d50dafe53089c62512ec422fb473e315e7a8cbf3b2441aaa78ed45fb46c
AgentTesla
9f8d8ee766fa761f22f4f77ead6e55d5165400db9ff50a32151e7bbc1f86ec32
AgentTesla
c8699616f0921ca0cc62d60cf4961557415ac5d72a0f83e870829b168241492f
AgentTesla
e3ef1490f0d59378d4bf439027c89b4bc7df3168e9f521ab38465dab076557da
AgentTesla
e4cc4462ef5c6d6f79f23b55f1b61f0bb5d02b158702b6e03596ba48edf1c696
AgentTesla
fd40c324ec61efe9fda8eea1716c2af91074fa0a2bb64368f4d698280e325a11
AgentTesla
Result
Malware family:
n/a
Score:
  7/10
Tags:
spyware stealer
Link:
https://tria.ge/reports/230810-qsynladb22/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Unpacked files
SH256 hash:
b4d9cd454cb9941fadee4b3a5d353f06064d777fc331c72ec3a0490123868164
MD5 hash:
a68c8d442a4666f6d1265ef0199c63af
SHA1 hash:
3169a2aff40cefac98fbdd313e99dbee9c0d73cf
Link:
https://www.unpac.me/results/9e606da7-0fb7-4c75-a2e2-1ecf5ec5ae36/
SH256 hash:
db77d447402dda806b6817fba4b619789e8af03233d9a08414d400538b2bedbc
MD5 hash:
954f8a5432fcf4567a25a5cdff191572
SHA1 hash:
740955871726e28fb9b110989f4ee98ee00be26a
Link:
https://www.unpac.me/results/9e606da7-0fb7-4c75-a2e2-1ecf5ec5ae36/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.86
Link:
https://yomi.yoroi.company/submissions/db77d447402dda806b6817fba4b619789e8af03233d9a08414d400538b2bedbc

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.

  
Delivery method
Other
Cape
Cape
https://www.capesandbox.com/analysis/441945/
  
URLhaus
https://urlhaus.abuse.ch/url/2703651/

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