MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c85ab5bd7344f3677a769235b13aa14bd7b0d93a61684266abf6596243f9728d. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c85ab5bd7344f3677a769235b13aa14bd7b0d93a61684266abf6596243f9728d
SHA3-384 hash: 7580437994b3fd4ce811f343d9287908ef704667577d00a89f23498a9f7d3e4f041c7b3921747a6fee3f0b438efe7eb8
SHA1 hash: bf7bf3c329137e53c5d4a8183362530ab99dfdf4
MD5 hash: adabb866c0a4010b51436f98150bbbd3
humanhash: echo-skylark-oven-cat
File name:Documents for your perusal.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:754'176 bytes
First seen:2021-08-31 04:28:49 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'741 x AgentTesla, 19'606 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:arq/7Lxn0iROCYm8+SF5fjRlOzNE+zs+VbVIc:Wq/7SeOF+WrRl+NE+zs+lVIc
Threatray 9'172 similar samples on MalwareBazaar
TLSH T188F42C7F19BDA2278175C6F58BE38827F0108B6F3110696476D347264322A7AB5F336E
Reporter GovCERT_CH
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
185
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Documents for your perusal.exe
Verdict:
Malicious activity
Analysis date:
2021-08-31 04:32:01 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/d9d3c6d2-4387-4ca2-b716-b5351656a0be

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/183938/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Creating a file
Using the Windows Management Instrumentation requests
Unauthorized injection to a system process
Malware family:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/9b01dac0-1e60-481d-b9f5-4fa1d928eadf
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/842242
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
.NET source code contains very large strings
Allocates memory in foreign processes
Found malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
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)
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)
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected AntiVM3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 474673 Sample: Documents for your perusal.exe Startdate: 31/08/2021 Architecture: WINDOWS Score: 100 33 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->33 35 Found malware configuration 2->35 37 Multi AV Scanner detection for dropped file 2->37 39 10 other signatures 2->39 7 Documents for your perusal.exe 7 2->7         started        process3 file4 21 C:\Users\user\AppData\Roaming\VFmzAZ.exe, PE32 7->21 dropped 23 C:\Users\user\AppData\Local\...\tmp2008.tmp, XML 7->23 dropped 25 C:\...\Documents for your perusal.exe.log, ASCII 7->25 dropped 41 Writes to foreign memory regions 7->41 43 Allocates memory in foreign processes 7->43 45 Injects a PE file into a foreign processes 7->45 11 RegSvcs.exe 15 2 7->11         started        15 RegSvcs.exe 7->15         started        17 schtasks.exe 1 7->17         started        signatures5 process6 dnsIp7 27 us-east-1.route-1000.000webhost.awex.io 145.14.144.149, 21, 30420, 49720 AWEXUS Netherlands 11->27 29 192.168.2.1 unknown unknown 11->29 31 files.000webhost.com 11->31 47 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 11->47 49 Tries to steal Mail credentials (via file access) 11->49 51 Tries to harvest and steal ftp login credentials 11->51 53 Tries to harvest and steal browser information (history, passwords, etc) 11->53 55 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 15->55 57 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 15->57 19 conhost.exe 17->19         started        signatures8 process9
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/c85ab5bd7344f3677a769235b13aa14bd7b0d93a61684266abf6596243f9728d/
Threat name:
Win32.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-08-31 02:59:54 UTC
AV detection:
14 of 46 (30.43%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=zbnllpltitzwo6twsi23covbjpl3bwj2mfueezvl6zmweq7zokgq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
0dda8ee1b2c7ef43c297140d4a2f5fe099c8cd95da67a0d629c5c93f8f4e5c10
AgentTesla
3917a8553293b76aedcdae977703ef047ddd3f1df1e872deae250fd1146106f2
AgentTesla
3fc20300517a9adf2ef160b4758e262accb54960aac5e431abee90e7b4b8a9eb
AgentTesla
688c90a30c07d51f1dd5ff4c043c18f638b450e830caa41f62c311aa4d43d8fc
AgentTesla
72c19f5b7281d9ec0a3b75924cbb46fdc1bbf17df39aa135ed502613cde7a7cc
AgentTesla
+ 9'162 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger spyware stealer trojan
Link:
https://tria.ge/reports/210831-9pzvkw9a6s/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
AgentTesla Payload
AgentTesla
Unpacked files
SH256 hash:
e9773548e8ef059e6438c3593b3cc17a2f7eec50a0f40428e4d4411b52e45cfc
MD5 hash:
5e5f2d4ed4219b8e205ace4c67e75ba6
SHA1 hash:
e22f7187f199306dcbdc3d87b572767f98e8d3ae
Link:
https://www.unpac.me/results/4fecab34-95bf-457f-9207-664f013b9c3a/
SH256 hash:
e8396f348412b5eb3fc82c74048e60b1a00c64d838af1b6c2a6c4d7431cf28d9
MD5 hash:
c3c63617977553b674eb068673c143a1
SHA1 hash:
8b29361ea3b4e535c0ebac5c6b5005e4267b0870
Link:
https://www.unpac.me/results/4fecab34-95bf-457f-9207-664f013b9c3a/
SH256 hash:
81f9eac76804c02f5baaa34c91b5775f965a34ad7811218d9c24e50cb6d9a90c
MD5 hash:
bae511742374b721136acaa03b0c1fa0
SHA1 hash:
215c50455b01a78ea173bbb034ddbe4b452ea734
Link:
https://www.unpac.me/results/4fecab34-95bf-457f-9207-664f013b9c3a/
SH256 hash:
c85ab5bd7344f3677a769235b13aa14bd7b0d93a61684266abf6596243f9728d
MD5 hash:
adabb866c0a4010b51436f98150bbbd3
SHA1 hash:
bf7bf3c329137e53c5d4a8183362530ab99dfdf4
Link:
https://www.unpac.me/results/4fecab34-95bf-457f-9207-664f013b9c3a/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/c85ab5bd7344/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/c85ab5bd7344f3677a769235b13aa14bd7b0d93a61684266abf6596243f9728d

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 c85ab5bd7344f3677a769235b13aa14bd7b0d93a61684266abf6596243f9728d

(this sample)

  
Dropped by
agenttesla
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/183938/

Comments