MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1c0bfa737602981a7ff3b4f96e303f761c2177c5d5852a8692caaeb9721fc8fd. 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: 10


Intelligence 10 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 1c0bfa737602981a7ff3b4f96e303f761c2177c5d5852a8692caaeb9721fc8fd
SHA3-384 hash: 7018b052bbac305cf0b4e968976a83f0eca18c81e92617dc442b47e89d788b9fa7dd9af3da07ca4baed2d99e0905b80b
SHA1 hash: 83c41a92037c84b0a679b0bf8efa292afab5e2f3
MD5 hash: f4835d17fb781456a47c0217f277c184
humanhash: item-summer-kitten-blossom
File name:RFQ7403937.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:827'160 bytes
First seen:2020-08-03 06:59:14 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 6144:RHAgbCa8sGQTpBP90oL7psWlUCCg64cTt+w7QB2GxviJEdQsSVaJU:RHX8kTjyoL7psWlbwT70B/6
Threatray 11'009 similar samples on MalwareBazaar
TLSH 6E05E338268EBD04DB7FC93594A43AC2236168877BB5CA0F2CC1574D2E5EF9B3632195
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: kumbakarna.iixcp.rumahweb.com
Sending IP: 103.247.9.98
From: Elena  <order10@ratorhu.xyz>
Subject: Re: New order-BH-W20070302
Attachment: RFQ7403937.zip (contains "RFQ7403937.exe")

AgentTesla SMTP exfil server:
smtp.yandex.com:587

Intelligence

File Origin
# of uploads :
1
# of downloads :
71
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV2
Create hunting rule
Link:
https://www.capesandbox.com/analysis/37400/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Running batch commands
Launching a process
Creating a file in the %AppData% subdirectories
Creating a process from a recently created file
Creating a file
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj
Score:
64 / 100
Link:
https://www.joesandbox.com/analysis/407318
Signature
.NET source code contains very large array initializations
Creates an autostart registry key pointing to binary in C:\Windows
Sigma detected: Add file from suspicious location to autostart registry
Yara detected AgentTesla
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 255889 Sample: RFQ7403937.exe Startdate: 03/08/2020 Architecture: WINDOWS Score: 64 27 Yara detected AgentTesla 2->27 29 Sigma detected: Add file from suspicious location to autostart registry 2->29 31 .NET source code contains very large array initializations 2->31 7 RFQ7403937.exe 6 2->7         started        10 pcalua.exe 2->10         started        12 pcalua.exe 1 1 2->12         started        process3 file4 25 C:\Users\user\AppData\Roaming\...\intel.exe, PE32 7->25 dropped 14 cmd.exe 1 7->14         started        16 intel.exe 7->16         started        18 intel.exe 10->18         started        process5 process6 20 reg.exe 1 1 14->20         started        23 conhost.exe 14->23         started        signatures7 33 Creates an autostart registry key pointing to binary in C:\Windows 20->33
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/1c0bfa737602981a7ff3b4f96e303f761c2177c5d5852a8692caaeb9721fc8fd/
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-08-03 07:01:09 UTC
AV detection:
24 of 29 (82.76%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=dqf7u43wakmbu77twt4w4mb7oyocc56f2wcsvbuszkxls4q7zd6q._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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AgentTesla
+ 10'999 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
keylogger stealer family:agenttesla
Link:
https://tria.ge/reports/200803-gxx5wgg5sn/
Behaviour
AgentTesla Payload
Agenttesla family
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/1c0bfa737602981a7ff3b4f96e303f761c2177c5d5852a8692caaeb9721fc8fd

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:Agenttesla_type2
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:CAP_HookExKeylogger
Create hunting rule
Author:Brian C. Bell -- @biebsmalwareguy
Reference:https://github.com/DFIRnotes/rules/blob/master/CAP_HookExKeylogger.yar
Rule name:win_agent_tesla_w1
Create hunting rule
Author:govcert_ch
Description:Detect Agent Tesla based on common .NET code sequences

File information

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

Malspam

AgentTesla

zip 3023d848e7f4f807db49b69cdc82f117f566b44eeddcf7256b0efce6877b40c3

AgentTesla

Executable exe 1c0bfa737602981a7ff3b4f96e303f761c2177c5d5852a8692caaeb9721fc8fd

(this sample)

  
Dropped by
MD5 97cf0f8f1a03d80a472f7de177e5f930
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/37400/
  
Dropped by
SHA256 3023d848e7f4f807db49b69cdc82f117f566b44eeddcf7256b0efce6877b40c3

Comments