MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4d95a2a4536ef058cccd8ac846bd2dd906fcbcd87fe6579b9918632402d04def. 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 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4d95a2a4536ef058cccd8ac846bd2dd906fcbcd87fe6579b9918632402d04def
SHA3-384 hash: 79ab1ba0ac43b04548d860fc3459a8270af4b391d12fab30ee3573358c811dd64d81e6d9667961c07f99b47213738a58
SHA1 hash: f7ed20260874c7e99e917b50c2389486bde1b401
MD5 hash: a4616d5e7d1d15f5f35ed41302011bb9
humanhash: football-four-snake-queen
File name:00098765_INV.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:833'024 bytes
First seen:2021-08-17 08:18:22 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 24576:a8peqv2RPiYTdx7emyQTGbQdvfNB2ekYQAR7s5pLh:a8o5PVxSaf/2ekYQRpLh
Threatray 8'468 similar samples on MalwareBazaar
TLSH T1E305E02A3F0C9ACBC258B47F4B81D785C2A2E3D6BC16E7AB19905D5BF7952C0F70A144
Reporter GovCERT_CH
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
177
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
00098765_INV.exe
Verdict:
Suspicious activity
Analysis date:
2021-08-17 08:20:59 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/ff783062-2af4-43b2-abf9-0c8262551d4b

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/179889/
Detection(s):
SecuriteInfo.com.MSIL.Kryptik.VFR-1.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Launching a process
Creating a file
Using the Windows Management Instrumentation requests
Creating a file in the %AppData% subdirectories
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a system process
Result
Verdict:
UNKNOWN
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/7967fe5a-9648-4715-abe6-4d350e611526
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/834173
Signature
.NET source code contains very large array initializations
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Installs a global keyboard hook
Machine Learning detection for sample
Modifies the hosts 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)
Sigma detected: Suspicious Process Start Without DLL
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
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 access)
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected AntiVM3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 466604 Sample: 00098765_INV.exe Startdate: 17/08/2021 Architecture: WINDOWS Score: 100 45 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->45 47 Found malware configuration 2->47 49 Antivirus / Scanner detection for submitted sample 2->49 51 6 other signatures 2->51 6 00098765_INV.exe 3 2->6         started        10 kprUEGC.exe 2 2->10         started        12 kprUEGC.exe 1 2->12         started        process3 file4 25 C:\Users\user\...\00098765_INV.exe.log, ASCII 6->25 dropped 53 Writes to foreign memory regions 6->53 55 Allocates memory in foreign processes 6->55 57 Injects a PE file into a foreign processes 6->57 14 RegSvcs.exe 2 4 6->14         started        19 RegSvcs.exe 6->19         started        21 conhost.exe 10->21         started        23 conhost.exe 12->23         started        signatures5 process6 dnsIp7 31 mail.teknicagroup.com 192.254.185.244, 49771, 587 UNIFIEDLAYER-AS-1US United States 14->31 27 C:\Users\user\AppData\Roaming\...\kprUEGC.exe, PE32 14->27 dropped 29 C:\Windows\System32\drivers\etc\hosts, ASCII 14->29 dropped 33 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 14->33 35 Tries to steal Mail credentials (via file access) 14->35 37 Tries to harvest and steal ftp login credentials 14->37 43 4 other signatures 14->43 39 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 19->39 41 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 19->41 file8 signatures9
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/4d95a2a4536ef058cccd8ac846bd2dd906fcbcd87fe6579b9918632402d04def/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-08-17 08:19:08 UTC
AV detection:
12 of 46 (26.09%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=jwk2fjctn3yfrtgnrleenpjn3edpzpgyp7tfpg4zdbrsiawqjxxq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
3309b8cc64c1829ea415343dceff82184eebe0fae9108ec3c9f26a415127de52
AgentTesla
43fef170694482498ea7cbc2f8209fc0761387df676f011cbd7c4b52b7872bb8
AgentTesla
647374b8b20223f23c332f7f671f21fc7715f9665fcbb41c64796b72e56133b1
AgentTesla
88d6342ccae8c8af4195bcb8c8d41230821ff2d1d5d559e074e240d903af840d
AgentTesla
a2fe04b23ff87693a170fbe1c4375595699582113c89d2b38809d5ce0703345b
AgentTesla
a3ed514949ec3a2bef161647cb6223a13db74b6d43bef963466fdd8104f2689c
AgentTesla
cd68a939631bc27a38fba500b03efd3268f5a3269880f3e635347de8b6ba2d2b
AgentTesla
ea4d7ae710b25f166a8d0a4254983d69ac60da4f6846bf912362c00f8e25c382
AgentTesla
f148b6ad99c39c47a48a82fc4959b98ccfed28b35556ea3e0f07d0b8911d5e15
AgentTesla
+ 8'458 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/210817-j7fzlhyka2/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Drops file in Drivers directory
AgentTesla Payload
AgentTesla
Unpacked files
SH256 hash:
6912e4bedd1288f116e968f0a79d9797f6d6bd24d45a5f10c52e20f9d33b8c61
MD5 hash:
03bde4a82ad64c0f314985232fbca3fa
SHA1 hash:
e8d0b6339e94192eaaca32c812f914e60576dca6
Link:
https://www.unpac.me/results/0b249518-fe07-4a1f-81b5-eb2b661e5802/
SH256 hash:
ad2d6cbd910a56c72386ed2b1c3060b47736b48bd392a1f5ad65c199582527b2
MD5 hash:
ecaf77c0bf55adec8574399185261bdd
SHA1 hash:
5c5c46af137fdeb5b0bdef6ac4de9865a8661954
Link:
https://www.unpac.me/results/0b249518-fe07-4a1f-81b5-eb2b661e5802/
SH256 hash:
87f2288ecef59e8b50c52bdd9ee20ab70277ec76e71014054570f494e677c6e5
MD5 hash:
129d95456ea668e52b3b407468d67893
SHA1 hash:
193a052a872176e5685640cc93967173d4b38666
Link:
https://www.unpac.me/results/0b249518-fe07-4a1f-81b5-eb2b661e5802/
SH256 hash:
4d95a2a4536ef058cccd8ac846bd2dd906fcbcd87fe6579b9918632402d04def
MD5 hash:
a4616d5e7d1d15f5f35ed41302011bb9
SHA1 hash:
f7ed20260874c7e99e917b50c2389486bde1b401
Link:
https://www.unpac.me/results/0b249518-fe07-4a1f-81b5-eb2b661e5802/
Malware family:
Agent Tesla v3
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/4d95a2a4536e/report/overview.html
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/4d95a2a4536ef058cccd8ac846bd2dd906fcbcd87fe6579b9918632402d04def

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:ach_AgentTesla_20200929
Create hunting rule
Author:abuse.ch
Description:Detects AgentTesla PE
Rule name:AgentTeslaV3
Create hunting rule
Author:ditekshen
Description:AgentTeslaV3 infostealer payload
Rule name:MALWARE_Win_AgentTeslaV3
Create hunting rule
Author:ditekSHen
Description:AgentTeslaV3 infostealer payload
Rule name:pe_imphash
Create hunting rule
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:win_agent_tesla_v1
Create hunting rule
Author:Johannes Bader @viql
Description:detects Agent Tesla

File information

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

Malspam

AgentTesla

Executable exe 4d95a2a4536ef058cccd8ac846bd2dd906fcbcd87fe6579b9918632402d04def

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/179889/

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