MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 90f3e806ddb15adcbeebef4b60d347a57bb55821eee0cf0319b4c23ec4bca284. 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: 90f3e806ddb15adcbeebef4b60d347a57bb55821eee0cf0319b4c23ec4bca284
SHA3-384 hash: e02c65f235e2958786a73b434e212a66c746af65982b8c09e891f67e0d89755ff756027f59915e6f49380c27e77dee9e
SHA1 hash: f8c240c186d659a10c3ecc5c0fd37619e09b987b
MD5 hash: 9ba53f2d7c0857edf7667d5e9e61596c
humanhash: island-nuts-lake-avocado
File name:CZ6iXacJ54QFvEf.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:759'296 bytes
First seen:2021-09-30 09:58:23 UTC
Last seen:2021-10-01 07:22:16 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'749 x AgentTesla, 19'653 x Formbook, 12'246 x SnakeKeylogger)
ssdeep 12288:7P7/bQ+X8+UiDLbRHah1UydMDkfgUBnkw3uVFK42fkOwOdFpvIjh0SAgLxCEd+e9:7PDbQ+X8+UiDLbRHah1UYzgUBn/uVFKk
Threatray 10'540 similar samples on MalwareBazaar
TLSH T1FEF49D54F11CD2B9FE1922B1293DFCC825F82EA9147DE91BB9D7B1A230B9E3154B0193
Reporter GovCERT_CH
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
3
# of downloads :
137
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV3
Create hunting rule
Link:
https://www.capesandbox.com/analysis/193473/
Detection(s):
SecuriteInfo.com.Variant.Fonctuzim.1.13267.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
Creating a file in the %temp% directory
Delayed writing of the file
Malware family:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/34515eea-f647-4849-8a88-a1fad3170411
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
spre.troj.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/861751
Signature
.NET source code contains potential unpacker
.NET source code contains very large strings
.NET source code references suspicious native API functions
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Modifies the hosts 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)
Sigma detected: MSBuild connects to smtp port
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: 494180 Sample: CZ6iXacJ54QFvEf.exe Startdate: 30/09/2021 Architecture: WINDOWS Score: 100 47 Found malware configuration 2->47 49 Multi AV Scanner detection for submitted file 2->49 51 Yara detected AgentTesla 2->51 53 6 other signatures 2->53 6 CZ6iXacJ54QFvEf.exe 3 2->6         started        10 NXLun.exe 2 2->10         started        12 NXLun.exe 1 2->12         started        process3 file4 25 C:\Users\user\...\CZ6iXacJ54QFvEf.exe.log, ASCII 6->25 dropped 55 Writes to foreign memory regions 6->55 57 Injects a PE file into a foreign processes 6->57 14 MSBuild.exe 2 4 6->14         started        19 MSBuild.exe 6->19         started        21 conhost.exe 10->21         started        23 conhost.exe 12->23         started        signatures5 process6 dnsIp7 31 priserveinfra.com 50.31.160.189, 49822, 587 SERVERCENTRALUS United States 14->31 33 mail.priserveinfra.com 14->33 27 C:\Users\user\AppData\Roaming\...27XLun.exe, PE32 14->27 dropped 29 C:\Windows\System32\drivers\etc\hosts, ASCII 14->29 dropped 35 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 14->35 37 Tries to steal Mail credentials (via file access) 14->37 39 Tries to harvest and steal ftp login credentials 14->39 45 3 other signatures 14->45 41 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 19->41 43 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 19->43 file8 signatures9
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/90f3e806ddb15adcbeebef4b60d347a57bb55821eee0cf0319b4c23ec4bca284/
Threat name:
Win32.Trojan.Pwsx
Create hunting rule
Status:
Malicious
First seen:
2021-09-30 06:52:32 UTC
AV detection:
10 of 44 (22.73%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=sdz6qbw5wfnnzpxl55fwbu2huv53kwbb53qm6ayzwtbd5rf4ukca._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
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AgentTesla
20f250ce18c73f3aecba1a2de30602b2d0bf6d138f447bc673ae50dd870acf03
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34b4bc7731f850fde6ae4ab681b262ea73ac01a2c1f6b1a8edb617133af63419
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4d32cde8b04dae775b23225a0a79b1165b778caac83033b3ed1a6b1e564e85cb
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8b36540feb94ebd4cc8347be22a49fd4cf480ca9b65678744197af3fb9814616
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9132d4e6f57fb6c3b51e61282fcb00c876182a1e6e85e9c4ee046c72129962be
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a71c1017c4c9f946f6c8b5327cf1a55d72b00f6cb2dd3a08b31fd3122a1ddb48
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a8e152a1b5793eb4ca893a1f011ec3e2ca4c15456e174eef8cfe1849cdcc8b4b
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ae0c09e5560968c147bfd8772fb490c9f867b37e14603021f9e2162947ed45e4
AgentTesla
b0ea314bac30cf5d80639c5257e354f810f8f735a481ae088b66bb2e962a6c1c
AgentTesla
+ 10'530 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/210930-lz275shbb2/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
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:
f1139a149482af26427fe3e1fd41b1a8aefaa019d2cbeeab9e417fc3c72fbb72
MD5 hash:
ade9aa46118ed1b7948bd691b8651084
SHA1 hash:
bff07fbb2647403837ecd3aa67f9758c32e23b81
Link:
https://www.unpac.me/results/2c58d1a8-d1c5-4818-8686-0f24ea117761/
SH256 hash:
c7bf2d9a79f99b58e183d5c45718867b06bebcfb93201b357a532c11a4091fef
MD5 hash:
9ba3a02fc80ca8474376507acf7e5f45
SHA1 hash:
8c5a047928f41218542387d3d1dec6791c1ddaad
Link:
https://www.unpac.me/results/2c58d1a8-d1c5-4818-8686-0f24ea117761/
SH256 hash:
6fef8420a8bd6a90cfe7ac8aeb0e3811422b9b6cb9e0b14ea03f5236438f72ba
MD5 hash:
10c7772f435231d58046e0dc34def127
SHA1 hash:
38c8f9ffb5136848d62582ef41bab6c810121c74
Link:
https://www.unpac.me/results/2c58d1a8-d1c5-4818-8686-0f24ea117761/
SH256 hash:
f7d272daf3522f99ca67b99bfe557564baba239104c7f20cef842f2e870bdf28
MD5 hash:
cceaca53d81061c0f1c6cf35ca7bf34b
SHA1 hash:
23ba45b249e0e4bdc5a8d4b4b07e2f7509cf85be
Link:
https://www.unpac.me/results/2c58d1a8-d1c5-4818-8686-0f24ea117761/
SH256 hash:
b75b609a7b1c65ce38431615f681744c03942b5f05f74e42c44f5b2a6b7f5982
MD5 hash:
c8351394ad16a5a017729c0271d2ac10
SHA1 hash:
10ed9b9b0aa0d133dec58987c255f4b7ee220eb8
Link:
https://www.unpac.me/results/2c58d1a8-d1c5-4818-8686-0f24ea117761/
SH256 hash:
90f3e806ddb15adcbeebef4b60d347a57bb55821eee0cf0319b4c23ec4bca284
MD5 hash:
9ba53f2d7c0857edf7667d5e9e61596c
SHA1 hash:
f8c240c186d659a10c3ecc5c0fd37619e09b987b
Link:
https://www.unpac.me/results/2c58d1a8-d1c5-4818-8686-0f24ea117761/
Malware family:
Agent Tesla v3
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/90f3e806ddb1/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/90f3e806ddb15adcbeebef4b60d347a57bb55821eee0cf0319b4c23ec4bca284

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 90f3e806ddb15adcbeebef4b60d347a57bb55821eee0cf0319b4c23ec4bca284

(this sample)

  
Dropped by
agenttesla
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/193473/

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