MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f4896155a788e0e90d015448e41df3d240e36721b45d6b67004f7cc16d87a259. 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: 14


Intelligence 14 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f4896155a788e0e90d015448e41df3d240e36721b45d6b67004f7cc16d87a259
SHA3-384 hash: c34adc26acab079618bb6a62aee217cb0ef8abd5f597a26a9b73aaddcff88c6fbf62075eb15d04cf39b34f1df3eabf1d
SHA1 hash: c1fd68f7c0b2ee3338b216d65a1f03149845509d
MD5 hash: 4b257ab2189a7a3015379b8ae5657efd
humanhash: kansas-six-ack-twenty
File name:Purchase Order.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:706'048 bytes
First seen:2022-05-04 14:17:57 UTC
Last seen:2022-05-05 05:59:39 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'743 x AgentTesla, 19'608 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:aalG5eiVJXJ/PhOLmUzlRbBx0+TbSABMjZxCnR82iNnc1:tG1jpONRbBxtSABM9xC+1Rc
TLSH T17FE4BE117A7DFE20CE2ACF7B9150B2004E7D5D8E7E72F50A6EAA349D1D77B4082506B2
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon 31f098b29298f031 (53 x AgentTesla, 30 x Formbook, 12 x RedLineStealer)
Reporter GovCERT_CH
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
4
# of downloads :
266
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
Purchase Order.exe
Verdict:
Malicious activity
Analysis date:
2022-05-04 14:22:58 UTC
Tags:
agenttesla
Link:
https://app.any.run/tasks/2dcaf807-c0e6-4f26-8385-5a6ebe92ecb3

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/268661/
Detection(s):
SecuriteInfo.com.MSIL.Kryptik.WZA.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Sending a custom TCP request
Сreating synchronization primitives
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Unauthorized injection to a recently created process
Creating a file
Using the Windows Management Instrumentation requests
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
obfuscated packed strictor
Link:
https://www.filescan.io/uploads/62728b572b32b1c37c92e735/reports/5d9ed469-cb79-492a-9423-729dcf010022/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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/438c0a56-4ed4-4583-b3c2-6824cb726c85
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/987834
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Antivirus detection for URL or domain
Hides that the sample has been downloaded from the Internet (zone.identifier)
Initial sample is a PE file and has a suspicious name
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)
Modifies the hosts file
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)
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)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AgentTesla
Yara detected AntiVM3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 620328 Sample: Purchase Order.exe Startdate: 04/05/2022 Architecture: WINDOWS Score: 100 58 Snort IDS alert for network traffic 2->58 60 Malicious sample detected (through community Yara rule) 2->60 62 Antivirus detection for URL or domain 2->62 64 13 other signatures 2->64 7 Purchase Order.exe 6 2->7         started        11 yqWDN.exe 4 2->11         started        13 yqWDN.exe 3 2->13         started        process3 file4 36 C:\Users\user\AppData\...\yaRbqUqXwOjN.exe, PE32 7->36 dropped 38 C:\Users\user\AppData\Local\...\tmpA0B9.tmp, XML 7->38 dropped 40 C:\Users\user\...\Purchase Order.exe.log, ASCII 7->40 dropped 66 Injects a PE file into a foreign processes 7->66 15 Purchase Order.exe 2 5 7->15         started        20 schtasks.exe 1 7->20         started        68 Multi AV Scanner detection for dropped file 11->68 70 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 11->70 72 Machine Learning detection for dropped file 11->72 74 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 11->74 22 yqWDN.exe 2 11->22         started        24 schtasks.exe 1 11->24         started        signatures5 process6 dnsIp7 42 mail.contrivekota.in 184.168.102.151, 49765, 49795, 587 AS-26496-GO-DADDY-COM-LLCUS United States 15->42 44 192.168.2.1 unknown unknown 15->44 30 C:\Users\user\AppData\Roaming\...\yqWDN.exe, PE32 15->30 dropped 32 C:\Windows\System32\drivers\etc\hosts, ASCII 15->32 dropped 34 C:\Users\user\...\yqWDN.exe:Zone.Identifier, ASCII 15->34 dropped 46 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 15->46 48 Tries to steal Mail credentials (via file / registry access) 15->48 50 Modifies the hosts file 15->50 52 Hides that the sample has been downloaded from the Internet (zone.identifier) 15->52 26 conhost.exe 20->26         started        54 Tries to harvest and steal ftp login credentials 22->54 56 Tries to harvest and steal browser information (history, passwords, etc) 22->56 28 conhost.exe 24->28         started        file8 signatures9 process10
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/f4896155a788e0e90d015448e41df3d240e36721b45d6b67004f7cc16d87a259/
Threat name:
ByteCode-MSIL.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2022-05-04 13:07:30 UTC
File Type:
PE (.Net Exe)
Extracted files:
31
AV detection:
23 of 26 (88.46%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=6sewcvnhrdqosdibkreoihpt2jaogzzbwrowwzyaj56mc3mhujmq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla collection keylogger persistence spyware stealer suricata trojan
Link:
https://tria.ge/reports/220504-rl9mysggem/
Behaviour
Creates scheduled task(s)
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
Accesses Microsoft Outlook profiles
Adds Run key to start application
Checks computer location settings
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Drops file in Drivers directory
AgentTesla
suricata: ET MALWARE AgentTesla Exfil Via SMTP
Unpacked files
SH256 hash:
7f4c5137c468382e2c783a380a3c56d9c18cb0fef804ad32a51c5577cd376c0e
MD5 hash:
96cf3e5c49a31a186f8355007cbc0fc4
SHA1 hash:
8773c21fcdd98d1b36f03a83062dc684e942cb7a
Link:
https://www.unpac.me/results/ff6f752c-88db-4273-912d-c92c2b7dbc10/
SH256 hash:
501d9799f368525f7ed718c78268dc0d63d4094f5bb34afec19297152c39f75e
MD5 hash:
778d6198a4eb8a9ea215d1b21230e5d9
SHA1 hash:
5824ad90e234ff48ac56f49fbf3939accaa469a3
Link:
https://www.unpac.me/results/ff6f752c-88db-4273-912d-c92c2b7dbc10/
SH256 hash:
79823e47436e129def4fba8ee225347a05b7bb27477fb1cc8be6dc9e9ce75696
MD5 hash:
39f524c1ab0eb76dfd79b2852e5e8c39
SHA1 hash:
428018e1701006744e34480b0029982a76d8a57d
Link:
https://www.unpac.me/results/ff6f752c-88db-4273-912d-c92c2b7dbc10/
SH256 hash:
f4896155a788e0e90d015448e41df3d240e36721b45d6b67004f7cc16d87a259
MD5 hash:
4b257ab2189a7a3015379b8ae5657efd
SHA1 hash:
c1fd68f7c0b2ee3338b216d65a1f03149845509d
Link:
https://www.unpac.me/results/ff6f752c-88db-4273-912d-c92c2b7dbc10/
Malware family:
AgentTesla.v3
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/f4896155a788/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/f4896155a788e0e90d015448e41df3d240e36721b45d6b67004f7cc16d87a259

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:MALWARE_Win_AgentTeslaV3
Create hunting rule
Author:ditekSHen
Description:AgentTeslaV3 infostealer payload
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.

Malspam

AgentTesla

zip 3367ac35d1fdb9ec2adf68daf96eebb91f1c0f30336c3c0480904b3f5338baa0

AgentTesla

Executable exe f4896155a788e0e90d015448e41df3d240e36721b45d6b67004f7cc16d87a259

(this sample)

  
Dropped by
agenttesla
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/268661/
  
Dropped by
SHA256 3367ac35d1fdb9ec2adf68daf96eebb91f1c0f30336c3c0480904b3f5338baa0
  
Dropped by
MD5 a0ca4d37e56aac76442afff0ac1f1dc3
  
Dropped by
SHA256 7043e2ae38720d05ce8ae960628394b4d87c66e1d3c5e850c23cacbbf709b080
  
Dropped by
MD5 aa03dd2a195b22ffaee5f959590d0a06

Comments