MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a7555fbbb59c9e063dfa6b392af01c02f1d23679e53882fc1cb6d3a432330c50. 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: 12


Intelligence 12 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a7555fbbb59c9e063dfa6b392af01c02f1d23679e53882fc1cb6d3a432330c50
SHA3-384 hash: 4ea96e2b1152d78fff7e6a4e25d813e597a76ca7d191bb4146d25fadbe65833c5520f607c620dcfb60720f42b2e4618c
SHA1 hash: 3ff8939c94546c715bde6877063e90208e9ad458
MD5 hash: e63878622fa749f981623fceb3b1600b
humanhash: oregon-fruit-south-magnesium
File name:TEKLİFLER.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:1'262'080 bytes
First seen:2023-01-06 13:43:41 UTC
Last seen:2023-01-28 17:17:45 UTC
File type:Executable exe
MIME type:application/x-dosexec
ssdeep 12288:DnNzHAHb2cIJ+NTF5EurHyHZdZKVixEYeoV+plXyjVG/ZsMQ1im8WyT46zg79ubJ:pzHwfOELfZhbNYTl8jcSowIQ
Threatray 906 similar samples on MalwareBazaar
TLSH T1CE45592439FA501AB173EFAA8BE475DADA6FB7733B03645D109103864723A81DEC153E
TrID 44.4% (.EXE) Win64 Executable (generic) (10523/12/4)
21.3% (.EXE) Win16 NE executable (generic) (5038/12/1)
8.7% (.ICL) Windows Icons Library (generic) (2059/9)
8.5% (.EXE) OS/2 Executable (generic) (2029/13)
8.4% (.EXE) Generic Win/DOS Executable (2002/3)
File icon (PE):PE icon
dhash icon 851a98b4909864c4 (58 x AgentTesla, 43 x Formbook, 34 x RedLineStealer)
Reporter adrian__luca
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
4
# of downloads :
170
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
TEKLİFLER.exe
Verdict:
Malicious activity
Analysis date:
2023-01-06 13:45:56 UTC
Tags:
keylogger stealer agenttesla trojan rat
Link:
https://app.any.run/tasks/c823d020-2d53-49ea-90fd-a2665529b8f4

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/350079/
Detection(s):
SecuriteInfo.com.Variant.Tedy.268270.20280.21174.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Creating a file
Using the Windows Management Instrumentation requests
Сreating synchronization primitives
DNS request
Sending a custom TCP request
Creating a file in the %AppData% subdirectories
Enabling the 'hidden' option for recently created files
Creating a window
Reading critical registry keys
Forced shutdown of a system process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Stealing user critical data
Unauthorized injection to a system process
Verdict:
No Threat
Threat level:
  2/10
Confidence:
100%
Tags:
control.exe
Link:
https://www.filescan.io/uploads/63b825a640e878e304232f2f/reports/943d60a0-e82a-4c71-8176-ac6a8712e42d/overview
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/3425eb24-834d-4b4d-b0d3-52fdeb5be71b
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1146353
Signature
.NET source code contains very large array initializations
.NET source code contains very large strings
.NET source code references suspicious native API functions
Antivirus detection for URL or domain
Contains functionality to register a low level keyboard hook
Hides that the sample has been downloaded from the Internet (zone.identifier)
Icon mismatch, binary includes an icon from a different legit application in order to fool users
Injects a PE file into a foreign processes
Installs a global keyboard hook
Malicious sample detected (through community Yara rule)
May check the online IP address of the machine
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)
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 ftp login credentials
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 AntiVM3
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 779083 Sample: TEKL#U0130FLER.exe Startdate: 06/01/2023 Architecture: WINDOWS Score: 100 45 Snort IDS alert for network traffic 2->45 47 Malicious sample detected (through community Yara rule) 2->47 49 Antivirus detection for URL or domain 2->49 51 9 other signatures 2->51 6 TEKL#U0130FLER.exe 3 2->6         started        10 newapp.exe 2 2->10         started        12 newapp.exe 1 2->12         started        process3 file4 27 C:\Users\user\...\TEKL#U0130FLER.exe.log, CSV 6->27 dropped 53 Writes to foreign memory regions 6->53 55 Injects a PE file into a foreign processes 6->55 14 jsc.exe 17 5 6->14         started        19 CasPol.exe 6->19         started        21 WsatConfig.exe 6->21         started        23 conhost.exe 10->23         started        25 conhost.exe 12->25         started        signatures5 process6 dnsIp7 31 ftp.electrobist.com 51.195.62.160, 21, 49558, 49701 OVHFR France 14->31 33 api4.ipify.org 64.185.227.156, 443, 49700 WEBNXUS United States 14->33 35 api.ipify.org 14->35 29 C:\Users\user\AppData\Roaming\...\newapp.exe, PE32 14->29 dropped 37 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 14->37 39 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 14->39 41 May check the online IP address of the machine 14->41 43 7 other signatures 14->43 file8 signatures9
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a7555fbbb59c9e063dfa6b392af01c02f1d23679e53882fc1cb6d3a432330c50/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2023-01-06 00:30:09 UTC
File Type:
PE+ (.Net Exe)
Extracted files:
7
AV detection:
20 of 41 (48.78%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=u5kv7o5vtspampp2nm4sv4a4aly5entz4u4if7a4w3j2imrtbria._file
Verdict:
malicious
Similar samples:
2267fac6e4bcace94d9ed232cc4ba7e128424e80c5730ea38f23610c11bdc168
AgentTesla
36f828fc51e022714a6fd634e6b663919f332b67e9505ceb05d5c3b9398c6a00
AgentTesla
59494a51618f234021c0dae2d87667ce9e431b8a75a1b4952d3e48bf71492fbb
AgentTesla
67388fca813133367167001c4114d6cd97b4bed24d0acdfda8b5784723a698ea
AgentTesla
9704c9bdcc0aceb98f97297ba82c93ba0ca396bdc02417bc75976de299ab52a3
AgentTesla
a0c77b9f372d94ae8cbc32b27d319491cb65001b12963bc68b96b8caaf10dfa0
AgentTesla
bf9cbad13935f939f44add9a131188c73e3dda014e039debc553ebacab228d83
AgentTesla
fcfe4c075c3b67f661de261a2f05ce34d1b9b150c286c67a3da085b006ae7b3c
AgentTesla
+ 896 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/230106-q1tdvagg59/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Program crash
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Adds Run key to start application
Looks up external IP address via web service
Uses the VBS compiler for execution
AgentTesla
Verdict:
Informative
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/c86717f7-7681-412f-9095-d4fa6e43b06f
Unpacked files
SH256 hash:
a7555fbbb59c9e063dfa6b392af01c02f1d23679e53882fc1cb6d3a432330c50
MD5 hash:
e63878622fa749f981623fceb3b1600b
SHA1 hash:
3ff8939c94546c715bde6877063e90208e9ad458
Link:
https://www.unpac.me/results/49e962ac-46dc-4326-8bfa-362dbd4d27e9/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.35
Link:
https://yomi.yoroi.company/submissions/a7555fbbb59c9e063dfa6b392af01c02f1d23679e53882fc1cb6d3a432330c50

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:pdb_YARAify
Create hunting rule
Author:@wowabiy314
Description:PDB

File information

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

Malspam

AgentTesla

Executable exe a7555fbbb59c9e063dfa6b392af01c02f1d23679e53882fc1cb6d3a432330c50

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/350079/

Comments