MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4892938e464ab2728ff82c8b2a3fb236e46cfd04653e7ec824577f097f5fcf4b. 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: 9


Intelligence 9 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4892938e464ab2728ff82c8b2a3fb236e46cfd04653e7ec824577f097f5fcf4b
SHA3-384 hash: 108e67b508db0e519694101f70bb2091f32f30ac5644a553468eeee83d43dcfa83b16e027a11b624f06f73b00c8309b9
SHA1 hash: 67975c61c108ba319f44a81fc6d6f98742d1fc86
MD5 hash: 3085911b3907e53132d2607f36c29c9f
humanhash: asparagus-failed-nineteen-october
File name:RFQ765363464744.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:722'432 bytes
First seen:2020-10-05 12:12:53 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 41cd3d95714b0df8060323fdc67b3eba (10 x AgentTesla, 6 x Loki, 1 x MassLogger)
ssdeep 12288:vcAt9L2fndhBK2w3p3z+iqiBZdMuWD9gP18W6zBKms:VHqhBFgBg6Ks
Threatray 1'922 similar samples on MalwareBazaar
TLSH 71E49D22A2E34833C1671A3D9DFB6774DC25BE503D28A9452FE4DC6C9F39681391B293
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: vaka.co.zw
Sending IP: 95.211.208.41
From: sales@vaka.co.zw
Subject: RE: RFQ Quotation 304
Attachment: RFQ765363464744.zip (contains "RFQ765363464744.exe")

AgentTesla SMTP exfil server:
us2.smtp.mailhostbox.com:587

Intelligence

File Origin
# of uploads :
1
# of downloads :
91
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV3
Create hunting rule
Link:
https://www.capesandbox.com/analysis/68204/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
Unauthorized injection to a recently created process
Launching a process
Using the Windows Management Instrumentation requests
Unauthorized injection to a system process
Enabling autorun by creating a file
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/481450
Signature
Allocates memory in foreign processes
Contains functionality to detect sleep reduction / modifications
Delayed program exit found
Detected unpacking (changes PE section rights)
Detected unpacking (creates a PE file in dynamic memory)
Detected unpacking (overwrites its own PE header)
Drops VBS files to the startup folder
Found malware configuration
Machine Learning detection for sample
Maps a DLL or memory area into another process
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)
Queues an APC in another process (thread injection)
Sigma detected: Drops script at startup location
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
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 293184 Sample: RFQ765363464744.exe Startdate: 05/10/2020 Architecture: WINDOWS Score: 100 29 us2.smtp.mailhostbox.com 2->29 43 Found malware configuration 2->43 45 Multi AV Scanner detection for submitted file 2->45 47 Yara detected AgentTesla 2->47 49 3 other signatures 2->49 8 RFQ765363464744.exe 2->8         started        11 wscript.exe 1 2->11         started        signatures3 process4 signatures5 51 Detected unpacking (changes PE section rights) 8->51 53 Detected unpacking (creates a PE file in dynamic memory) 8->53 55 Detected unpacking (overwrites its own PE header) 8->55 57 7 other signatures 8->57 13 RFQ765363464744.exe 15 2 8->13         started        17 notepad.exe 1 8->17         started        19 RFQ765363464744.exe 11->19         started        process6 dnsIp7 37 us2.smtp.mailhostbox.com 208.91.198.143, 49752, 587 PUBLIC-DOMAIN-REGISTRYUS United States 13->37 39 elb097307-934924932.us-east-1.elb.amazonaws.com 54.225.66.103, 443, 49750 AMAZON-AESUS United States 13->39 41 2 other IPs or domains 13->41 59 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 13->59 61 Tries to steal Mail credentials (via file access) 13->61 63 Tries to harvest and steal ftp login credentials 13->63 65 Tries to harvest and steal browser information (history, passwords, etc) 13->65 67 Drops VBS files to the startup folder 17->67 69 Delayed program exit found 17->69 71 Writes to foreign memory regions 19->71 73 Allocates memory in foreign processes 19->73 75 Maps a DLL or memory area into another process 19->75 21 notepad.exe 1 19->21         started        24 RFQ765363464744.exe 2 19->24         started        signatures8 process9 dnsIp10 27 C:\Users\user\AppData\Roaming\...\payment.vbs, ASCII 21->27 dropped 31 54.227.255.202, 443, 49751 AMAZON-AESUS United States 24->31 33 192.168.2.1 unknown unknown 24->33 35 3 other IPs or domains 24->35 file11
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4892938e464ab2728ff82c8b2a3fb236e46cfd04653e7ec824577f097f5fcf4b/
Threat name:
Win32.Trojan.LokiBot
Create hunting rule
Status:
Malicious
First seen:
2020-10-05 09:28:29 UTC
AV detection:
27 of 29 (93.10%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=jcjjhdsgjkzhfd7yfsfsup5sg3sgz7iemu7h5sbek57qs727z5fq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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AgentTesla
+ 1'912 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
upx spyware keylogger trojan stealer family:agenttesla
Link:
https://tria.ge/reports/201005-6xqb8fx2fa/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Looks up external IP address via web service
Drops startup file
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
UPX packed file
AgentTesla
Unpacked files
SH256 hash:
4892938e464ab2728ff82c8b2a3fb236e46cfd04653e7ec824577f097f5fcf4b
MD5 hash:
3085911b3907e53132d2607f36c29c9f
SHA1 hash:
67975c61c108ba319f44a81fc6d6f98742d1fc86
Link:
https://www.unpac.me/results/cf5befe5-9279-47b0-b8b6-dcc1a06727f9/
SH256 hash:
d77954cd93324d7719ba31af8412a4a1738e1a25be5701bb0536b21d94ec09d9
MD5 hash:
ece8d96a65730025ffeb960e2ea4fb21
SHA1 hash:
1b7a0c12451d77312a045c3c1cd37504f63f5688
Link:
https://www.unpac.me/results/cf5befe5-9279-47b0-b8b6-dcc1a06727f9/
SH256 hash:
70c05aa8154982cd250b0868c3202d13a9ea2aedae28aac40bb922fcb38e649c
MD5 hash:
16d19f57b4831bd01e38004f5f16920b
SHA1 hash:
1d8b4ba0f27e17c3e5c488f3d252d22b4480c961
Link:
https://www.unpac.me/results/cf5befe5-9279-47b0-b8b6-dcc1a06727f9/
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/4892938e464ab2728ff82c8b2a3fb236e46cfd04653e7ec824577f097f5fcf4b

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: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

zip 8d8417ea98662b7ccfd266c90d346546c9573a8d9a0ccc09d7e887c12adf6c5a

AgentTesla

Executable exe 4892938e464ab2728ff82c8b2a3fb236e46cfd04653e7ec824577f097f5fcf4b

(this sample)

  
Dropped by
MD5 41a16886b19a797388807399116ca29f
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/68204/
  
Dropped by
SHA256 8d8417ea98662b7ccfd266c90d346546c9573a8d9a0ccc09d7e887c12adf6c5a

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