MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 648438e57e34a1413598ee8cba3c697f183d8afa3dbf691507b3e3feb1c00fa1. 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: 13


Intelligence 13 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 648438e57e34a1413598ee8cba3c697f183d8afa3dbf691507b3e3feb1c00fa1
SHA3-384 hash: 3b005711a8388e67b539ce87ea5cc4bc333aef002a68ba73eefce94b48a85211530daceddffc5ac1ca4e40d9a4abafc3
SHA1 hash: 4f8e5dddc58e0b731028318794a55beacc466bc9
MD5 hash: 0127f9d957f5992d5aa237bb58afef0d
humanhash: nebraska-hotel-papa-lamp
File name:revised quotation..exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:915'968 bytes
First seen:2021-09-29 07:05:39 UTC
Last seen:2021-09-29 08:12:48 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 24576:fG3M3XhiXGSen66HmZD4VHfQe6ZyWshg+qbZxTZZWunAWv:fG4Xh3SeLc
Threatray 10'519 similar samples on MalwareBazaar
TLSH T1F5158D2AB60CE65AFD1433F02524BCC410E81C981C6CEA17B97675EAB4F9E27DCB505E
Reporter GovCERT_CH
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
109
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
revised quotation..exe
Verdict:
Suspicious activity
Analysis date:
2021-09-29 07:07:53 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/ca104064-f09f-473a-8fbb-2588f36585e1

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
AgentTeslaV3
Create hunting rule
Link:
https://www.capesandbox.com/analysis/192848/
Detection(s):
SecuriteInfo.com.Heur.Variadic.A.308.1.12291.10635.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/4dfd363f-609f-48bd-b9b9-202bb8a19696
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/860922
Signature
.NET source code contains very large array initializations
.NET source code contains very large strings
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Machine Learning detection for sample
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: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
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: 493571 Sample: revised quotation..exe Startdate: 29/09/2021 Architecture: WINDOWS Score: 100 49 Found malware configuration 2->49 51 Multi AV Scanner detection for submitted file 2->51 53 Yara detected AgentTesla 2->53 55 6 other signatures 2->55 6 revised quotation..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\...\revised quotation..exe.log, ASCII 6->25 dropped 57 Writes to foreign memory regions 6->57 59 Injects a PE file into a foreign processes 6->59 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 infoxpress.com.af 192.185.30.210, 49816, 587 UNIFIEDLAYER-AS-1US United States 14->31 33 mail.infoxpress.com.af 14->33 35 192.168.2.1 unknown unknown 14->35 27 C:\Users\user\AppData\Roaming\...27XLun.exe, PE32 14->27 dropped 29 C:\Windows\System32\drivers\etc\hosts, ASCII 14->29 dropped 37 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 14->37 39 Tries to steal Mail credentials (via file access) 14->39 41 Tries to harvest and steal ftp login credentials 14->41 47 3 other signatures 14->47 43 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 19->43 45 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 19->45 file8 signatures9
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/648438e57e34a1413598ee8cba3c697f183d8afa3dbf691507b3e3feb1c00fa1/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-09-29 05:02:07 UTC
AV detection:
10 of 44 (22.73%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=mscdrzl6gsqucnmy52glupdjp4md3cx2hw7wsfihwpr75moab6qq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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b95c99701d429de9d8f52792d7a2b462ec6e342618a04ef419710b42e76293ff
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df730a5c1462ced883e78b64dbb7d34c7687b3e0b20914559a87a3719496818f
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eed29bcc7839a20dbdfb496d946de1f47404b693dff72cabfbd4d21f26d8ecd3
AgentTesla
+ 10'509 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/210929-hw4p1seafr/
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:
0b9d62ac58309367365004e841f57262fac6fb9e7c775a7d335d31297dc50107
MD5 hash:
9f93ae1fe6da7a6e82effa9f633f7223
SHA1 hash:
81eb18c0363422ff457b6bba308526c9d264fab3
Link:
https://www.unpac.me/results/df1db352-9a81-4680-851b-c7b3bb62446a/
SH256 hash:
6fef8420a8bd6a90cfe7ac8aeb0e3811422b9b6cb9e0b14ea03f5236438f72ba
MD5 hash:
10c7772f435231d58046e0dc34def127
SHA1 hash:
38c8f9ffb5136848d62582ef41bab6c810121c74
Link:
https://www.unpac.me/results/df1db352-9a81-4680-851b-c7b3bb62446a/
SH256 hash:
f7d272daf3522f99ca67b99bfe557564baba239104c7f20cef842f2e870bdf28
MD5 hash:
cceaca53d81061c0f1c6cf35ca7bf34b
SHA1 hash:
23ba45b249e0e4bdc5a8d4b4b07e2f7509cf85be
Link:
https://www.unpac.me/results/df1db352-9a81-4680-851b-c7b3bb62446a/
SH256 hash:
fc673e796378fa8fcb202f86f0f857388b43ffe66d22bb07c553b8021e650c43
MD5 hash:
37895d3bb6d04cbbf70f541a91e2032d
SHA1 hash:
22f68bd4f40af0ac09b006c578bca85b312012ae
Link:
https://www.unpac.me/results/df1db352-9a81-4680-851b-c7b3bb62446a/
SH256 hash:
884fbebe7f675e0a223f543bb477fe43fb5ed72018e14f9cd159be088cf23464
MD5 hash:
c8dc4c284d36899f9d34ba718b0d3eae
SHA1 hash:
198563280e5afdf2fc6d23818c3dbc567b673d1d
Link:
https://www.unpac.me/results/df1db352-9a81-4680-851b-c7b3bb62446a/
SH256 hash:
648438e57e34a1413598ee8cba3c697f183d8afa3dbf691507b3e3feb1c00fa1
MD5 hash:
0127f9d957f5992d5aa237bb58afef0d
SHA1 hash:
4f8e5dddc58e0b731028318794a55beacc466bc9
Link:
https://www.unpac.me/results/df1db352-9a81-4680-851b-c7b3bb62446a/
Malware family:
Agent Tesla v3
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/648438e57e34/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/648438e57e34a1413598ee8cba3c697f183d8afa3dbf691507b3e3feb1c00fa1

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: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

File information

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

Malspam

AgentTesla

Executable exe 648438e57e34a1413598ee8cba3c697f183d8afa3dbf691507b3e3feb1c00fa1

(this sample)

  
Dropped by
agenttesla
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/192848/

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