MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c3528956666ac901c406c13e9b265cb805424e91919db91a1fe2227ffbc15c7a. 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: 11


Intelligence 11 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c3528956666ac901c406c13e9b265cb805424e91919db91a1fe2227ffbc15c7a
SHA3-384 hash: 364c8e1f2bd47fc93b943612f3161a0ada4e5ef436554264484e55c87bae0b1c5a124f3fabcaa8eb7c90cfdca1ae08ac
SHA1 hash: 847dc02d0c9d80c0eea7047a0fc85457ffd2cbb4
MD5 hash: 0b0714c8f6fae9579ff074872cf987de
humanhash: mike-indigo-earth-romeo
File name:RFQ-034.scr
Download: download sample
Signature AgentTesla
Create hunting rule
File size:58'520 bytes
First seen:2021-04-08 06:55:29 UTC
Last seen:2021-04-08 08:26:33 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 768:f4QAsxH+Az+SicgPLhErPXH+7FaGflCGflvx/FIwJGun51SGflvx/FIwJGun5UmR:hAsxeFSiLL6fHKKmI7s
Threatray 170 similar samples on MalwareBazaar
TLSH B643FCEC8CA914FBE96DF934D0C29142B9F8F43724145AAB60877FC3D486B922DD416E
Reporter abuse_ch
Tags:AgentTesla scr


Avatar
abuse_ch
Malspam distributing unidentified malware:

HELO: ysmtp01.mail.fullspace.ru
Sending IP: 185.72.146.39
From: Rua Coronel Pedro <yunus@pchpt.com>
Reply-To: anblanna.ob@gmail.com
Subject: Can you quote the following ?
Attachment: RFQ-034.7z (contains "RFQ-034.scr")

Intelligence

File Origin
# of uploads :
2
# of downloads :
122
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
RFQ-034.scr
Verdict:
Malicious activity
Analysis date:
2021-04-08 07:34:05 UTC
Tags:
trojan
Link:
https://app.any.run/tasks/bffd5b32-2fd9-4e20-a05b-81e4106b7263

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/133051/
Detection(s):
SecuriteInfo.com.Trojan.DownloaderNET.154.5858.3722.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
DNS request
Creating a file
Sending a UDP request
Creating a file in the %temp% subdirectories
Creating a process from a recently created file
Creating a process with a hidden window
Launching a service
Deleting a recently created file
Launching a process
Creating a file in the Windows subdirectories
Creating a window
Running batch commands
Sending a TCP request to an infection source
Unauthorized injection to a recently created process
Setting a single autorun event
Blocking the User Account Control
Sending an HTTP GET request to an infection source
Adding exclusions to Windows Defender
Enabling autorun by creating a file
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.
Malware family:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/3acecd49-d87f-439b-842a-8eeef55e4f80
Result
Threat name:
Unknown
Detection:
malicious
Classification:
adwa.evad
Score:
96 / 100
Link:
https://www.joesandbox.com/analysis/669716
Signature
Adds a directory exclusion to Windows Defender
Changes security center settings (notifications, updates, antivirus, firewall)
Creates an autostart registry key pointing to binary in C:\Windows
Drops PE files to the startup folder
Drops PE files with benign system names
Hides threads from debuggers
Injects a PE file into a foreign processes
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Powershell adding suspicious path to exclusion list
Tries to delay execution (extensive OutputDebugStringW loop)
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 383816 Sample: RFQ-034.scr Startdate: 08/04/2021 Architecture: WINDOWS Score: 96 49 mail.guangijpharm.com 2->49 57 Multi AV Scanner detection for dropped file 2->57 59 Sigma detected: Powershell adding suspicious path to exclusion list 2->59 61 Multi AV Scanner detection for submitted file 2->61 8 RFQ-034.exe 24 12 2->8         started        13 svchost.exe 2->13         started        15 svchost.exe 9 1 2->15         started        17 8 other processes 2->17 signatures3 process4 dnsIp5 51 myliverpoolnews.cf 104.21.56.119, 443, 49704, 49705 CLOUDFLARENETUS United States 8->51 53 192.168.2.1 unknown unknown 8->53 43 C:\Windows\Microsoft.NET\...\svchost.exe, PE32 8->43 dropped 45 C:\Users\user\AppData\...\FKcsmIYMBzLzlEs.exe, PE32 8->45 dropped 47 C:\Users\user\AppData\...\AdvancedRun.exe, PE32 8->47 dropped 63 Drops PE files to the startup folder 8->63 65 Creates an autostart registry key pointing to binary in C:\Windows 8->65 67 Adds a directory exclusion to Windows Defender 8->67 71 4 other signatures 8->71 19 cmd.exe 8->19         started        21 powershell.exe 5 8->21         started        23 powershell.exe 5 8->23         started        25 8 other processes 8->25 69 Changes security center settings (notifications, updates, antivirus, firewall) 13->69 55 127.0.0.1 unknown unknown 15->55 file6 signatures7 process8 process9 27 conhost.exe 19->27         started        29 timeout.exe 19->29         started        31 conhost.exe 21->31         started        33 conhost.exe 23->33         started        35 AdvancedRun.exe 25->35         started        37 conhost.exe 25->37         started        39 conhost.exe 25->39         started        41 4 other processes 25->41
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c3528956666ac901c406c13e9b265cb805424e91919db91a1fe2227ffbc15c7a/
Threat name:
ByteCode-MSIL.Trojan.Pwsx
Create hunting rule
Status:
Malicious
First seen:
2021-04-08 06:56:11 UTC
AV detection:
9 of 48 (18.75%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ynjisvtgnleqdragye7jwjs4xacuetursgo3sgq74irh766blr5a._file
Verdict:
malicious
Similar samples:
0d14d496bfc02d35be0b219adc5eddf49fe129e3249beaf7fa5cc71b712e9c63
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1a2beaadeb5f9bc79af30c8a9e458bff69d4b481b305451afe68d0f1a9074da1
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321b6f97457bc64a7fa264043d5f7ce3b6dc1ddd735daf77820580b2f7ff7a93
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5abccf199b1e503db7c810a9dcbe1310b6a6b78441b091dae6f45c92d3c3add1
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766aab7b9f0e374b2e8810bf5c3e2c60aa28fa968112dff3634bbdbdc3f0a490
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9c6abdf1e5ff719e261ea153555b981cd907ba5f79f50943d679d59967eba445
AgentTesla
a0ebcb3078763eb8acca534831ef9ca1a213347328698aa3cda7c5bd23cd81d8
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c52ddeac61f16fb23ff925617fba081392b7aabe47c82c765513755d38e62cde
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c73b434afd1074cd367b181cedd3cb55e69bb5d12594c3d2101d0b87c56e1013
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ca146513d9ec6ec60b81b20fd9aa2f262c54d447e8361417c3c4b7678e51e6a5
AgentTesla
+ 160 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla evasion keylogger spyware stealer trojan
Link:
https://tria.ge/reports/210408-3w3lpgbgaa/
Behaviour
Delays execution with timeout.exe
Modifies system certificate store
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Drops file in Windows directory
Drops startup file
Loads dropped DLL
Windows security modification
Executes dropped EXE
AgentTesla Payload
Nirsoft
AgentTesla
Modifies Windows Defender Real-time Protection settings
Turns off Windows Defender SpyNet reporting
Windows security bypass
Unpacked files
SH256 hash:
c3528956666ac901c406c13e9b265cb805424e91919db91a1fe2227ffbc15c7a
MD5 hash:
0b0714c8f6fae9579ff074872cf987de
SHA1 hash:
847dc02d0c9d80c0eea7047a0fc85457ffd2cbb4
Link:
https://www.unpac.me/results/7e61de72-ae5f-4a27-9cc0-dc40cd581a51/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
Link:
https://yomi.yoroi.company/submissions/c3528956666ac901c406c13e9b265cb805424e91919db91a1fe2227ffbc15c7a

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:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFu
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time

File information

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

Malspam

AgentTesla

7z 19c0fc3cb524789c836c0e2470a659e8cf75605e908d37706eb58c7ad0f7e724

AgentTesla

Executable exe c3528956666ac901c406c13e9b265cb805424e91919db91a1fe2227ffbc15c7a

(this sample)

  
Dropped by
MD5 8e6bbc735580610c5e9f8cd7a4ffcf1f
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/133051/
  
Dropped by
SHA256 19c0fc3cb524789c836c0e2470a659e8cf75605e908d37706eb58c7ad0f7e724

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