MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 df5dfb2bd88b1e44ea496d6f948271524efa9cef99285eeb9840b02d81bcaeb1. 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: df5dfb2bd88b1e44ea496d6f948271524efa9cef99285eeb9840b02d81bcaeb1
SHA3-384 hash: eb004ead2e84c1121f9efeea60d8a6662cec264ef4a2b3be16d180923be316519e5cd6cd42b698d1f4a4a9943a4a9471
SHA1 hash: 1edec40d7c07a8642839db8d5c42ed2a9a6019ec
MD5 hash: cb621e1daa5f7f43aa0f89d7b602b047
humanhash: hawaii-mountain-seventeen-island
File name:ryyy.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:64'512 bytes
First seen:2023-10-23 23:25:47 UTC
Last seen:2023-10-24 00:08:54 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'747 x AgentTesla, 19'638 x Formbook, 12'244 x SnakeKeylogger)
ssdeep 1536:pdY0Ka77qRjKeIoVk3SfraKZRl4Bxv4BxQ/sSV:UoqRFVkCfrxSBxv7/xV
Threatray 854 similar samples on MalwareBazaar
TLSH T1B4530913BB9F85A2C354573AC6E7A1148F34D581F613D60EB98EE34A980B7F6C94270B
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Reporter FXOLabs
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
306
Origin country :
BR BR
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
ryyy.exe
Verdict:
Malicious activity
Analysis date:
2023-10-23 23:29:43 UTC
Tags:
agenttesla stealer
Link:
https://app.any.run/tasks/b615ebac-34a5-4bb3-be8d-f05fdc3aa347

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/455778/
Detection(s):
SecuriteInfo.com.Trojan.DownLoader46.25799.27625.8826.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending an HTTP GET request
Creating a window
Creating a file in the %AppData% directory
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Using the Windows Management Instrumentation requests
Sending a custom TCP request
DNS request
Reading critical registry keys
Сreating synchronization primitives
Query of malicious DNS domain
Sending a TCP request to an infection source
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Stealing user critical data
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
lolbin packed replace
Link:
https://www.filescan.io/uploads/6537010ee3768e7905c866a3/reports/37772e46-f154-4410-a29b-1b14156b3672/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/df5dfb2bd88b1e44ea496d6f948271524efa9cef99285eeb9840b02d81bcaeb1
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:
Unknown
Link:
https://analyze.intezer.com/analyses/96a23f47-4fbc-4836-baf2-b34774f9f310
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1330895
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
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)
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)
Snort IDS alert for network traffic
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
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)
Yara detected AgentTesla
Yara detected Costura Assembly Loader
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1330895 Sample: ryyy.exe Startdate: 24/10/2023 Architecture: WINDOWS Score: 100 26 smtp.podatki-krakow.com.pl 2->26 28 qu.ax 2->28 30 2 other IPs or domains 2->30 44 Snort IDS alert for network traffic 2->44 46 Found malware configuration 2->46 48 Malicious sample detected (through community Yara rule) 2->48 50 8 other signatures 2->50 7 Pmelsswqlau.exe 14 5 2->7         started        10 ryyy.exe 16 5 2->10         started        14 Pmelsswqlau.exe 2->14         started        signatures3 process4 dnsIp5 52 Antivirus detection for dropped file 7->52 54 Multi AV Scanner detection for dropped file 7->54 56 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->56 58 Machine Learning detection for dropped file 7->58 16 Pmelsswqlau.exe 2 7->16         started        36 qu.ax 92.118.112.4, 443, 49713, 49716 GUDAEV-ASRU Russian Federation 10->36 24 C:\Users\user\AppData\...\Pmelsswqlau.exe, PE32 10->24 dropped 60 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 10->60 62 Injects a PE file into a foreign processes 10->62 19 ryyy.exe 2 10->19         started        22 Pmelsswqlau.exe 14->22         started        file6 signatures7 process8 dnsIp9 32 smtp.podatki-krakow.com.pl 81.21.192.160, 49715, 49722, 49725 KKI-BCI-ASPL Poland 19->32 34 api4.ipify.org 173.231.16.77, 443, 49714, 49719 WEBNXUS United States 19->34 38 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 22->38 40 Tries to steal Mail credentials (via file / registry access) 22->40 42 Tries to harvest and steal browser information (history, passwords, etc) 22->42 signatures10
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/df5dfb2bd88b1e44ea496d6f948271524efa9cef99285eeb9840b02d81bcaeb1
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/df5dfb2bd88b1e44ea496d6f948271524efa9cef99285eeb9840b02d81bcaeb1/
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Malicious
First seen:
2023-10-23 00:16:27 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
15 of 35 (42.86%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=35o7wk6yrmpej2sjnvxzjatrkjhpvhhpteuf524yicyc3an4v2yq._file
Verdict:
malicious
Similar samples:
359ee2cac1b16c368eb3082646be308ec2f771bff16429019b044da002dfa80b
AgentTesla
491a456f605b2e032bd3317d855cffc065aded96394126bffa79ce8f9b6daa92
AgentTesla
65c4d932a71d1f36d1c57b7ed319c20446d3c935b60f8f1262bc047e1c6556ff
AgentTesla
79f31a87c4435c11bbb786847d8cecace6d76c49c1c14d3b53c664485f735e40
AgentTesla
853fa6034ade647d4330738bc7f9343cd5b2a0caf65ce86bdba79a23fcba4a10
AgentTesla
9661f2075ff6572dcd35ed7fcb74c4ba11771ddba99f230815962a43b90e907d
AgentTesla
af9373c37ef6f7cee66f69230dd4bf6f7773153af373f3485a387c0856ef5dbc
AgentTesla
d0475c384cd4d7b6ea2c3460a07c49fd59aafe87841e479d7965c3384ccec67d
AgentTesla
df5dfb2bd88b1e44ea496d6f948271524efa9cef99285eeb9840b02d81bcaeb1
AgentTesla
ea652ce006bdff45184664a2c691ca5c6256fc1a686dfa8721cf5a9d2e1f4593
AgentTesla
+ 844 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/231023-3ettpsgh8s/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Looks up external IP address via web service
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:
df5dfb2bd88b1e44ea496d6f948271524efa9cef99285eeb9840b02d81bcaeb1
MD5 hash:
cb621e1daa5f7f43aa0f89d7b602b047
SHA1 hash:
1edec40d7c07a8642839db8d5c42ed2a9a6019ec
Detections:
PureCrypter_Stage1
Create hunting rule
win_delivery_check_g0
Create hunting rule
Link:
https://www.unpac.me/results/427dd4d4-3817-415e-9ba8-2a6950f6558b/
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/df5dfb2bd88b1e44ea496d6f948271524efa9cef99285eeb9840b02d81bcaeb1

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:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:win_delivery_check_g0
Create hunting rule

File information

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

Malspam

AgentTesla

Executable exe df5dfb2bd88b1e44ea496d6f948271524efa9cef99285eeb9840b02d81bcaeb1

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/455778/

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