MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 27ff4d7994a19e27c347e7794e0e48fa5c66f36e4f27ab407f9044494dd8c5a5. 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: 27ff4d7994a19e27c347e7794e0e48fa5c66f36e4f27ab407f9044494dd8c5a5
SHA3-384 hash: 1e90d7bd9ba1deb3e464e7daa2a8a2aa35298797ba81efa712814a81f86c01c929677d65643b571e949c60b8e73dde6b
SHA1 hash: d0136b9a5e8443fbdafbd1d97df695f431eb794e
MD5 hash: becb8d72429e5816f294986a1772e1a6
humanhash: hydrogen-uranus-ceiling-blossom
File name:AWB# 102235516763.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:537'600 bytes
First seen:2021-12-03 16:54:58 UTC
Last seen:2021-12-03 17:36:40 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'607 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:0ztD00Jp5NB0QSIH8IcDpQXhRCmRKhZBwiCDv:AC0JL03IH8IcN+RUFwi8v
Threatray 13'266 similar samples on MalwareBazaar
TLSH T191B4EF4939D6D2A8FC7BDFB20CB1F4C10378F6E9E885E6DFF880214AA5677941A01671
Reporter GovCERT_CH
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
265
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
AWB# 102235516763.exe
Verdict:
Malicious activity
Analysis date:
2021-12-03 16:58:16 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/eab222ce-00c5-4787-93fe-2d920f6af57f

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/211100/
Detection(s):
SecuriteInfo.com.Scr.Malcodegdn30.11005.27204.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file
Searching for the window
Creating a window
DNS request
Using the Windows Management Instrumentation requests
Unauthorized injection to a recently created process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
fareit obfuscated packed
Link:
https://www.filescan.io/uploads/61aa4be947ed217c01301401/reports/677cac21-2c8f-46d2-b92e-bfa3852722f1/overview
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/78154d5c-ee1d-420f-85af-e053d8423f25
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/901036
Signature
.NET source code contains very large array initializations
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Machine Learning detection for dropped file
Machine Learning detection for sample
Modifies the hosts file
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)
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
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 / registry access)
Yara detected AgentTesla
Yara detected AntiVM3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 533515 Sample: AWB# 102235516763.exe Startdate: 03/12/2021 Architecture: WINDOWS Score: 100 41 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->41 43 Found malware configuration 2->43 45 Multi AV Scanner detection for submitted file 2->45 47 8 other signatures 2->47 6 AWB# 102235516763.exe 3 2->6         started        9 tKZVPq.exe 3 2->9         started        12 tKZVPq.exe 2 2->12         started        process3 file4 21 C:\Users\user\...\AWB# 102235516763.exe.log, ASCII 6->21 dropped 14 AWB# 102235516763.exe 2 5 6->14         started        49 Multi AV Scanner detection for dropped file 9->49 51 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 9->51 53 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 9->53 55 2 other signatures 9->55 19 tKZVPq.exe 2 9->19         started        signatures5 process6 dnsIp7 29 demo.jeninfo.com 103.195.185.115, 49846, 587 PUBLIC-DOMAIN-REGISTRYUS India 14->29 31 mail.demo.jeninfo.com 14->31 23 C:\Users\user\AppData\Roaming\...\tKZVPq.exe, PE32 14->23 dropped 25 C:\Windows\System32\drivers\etc\hosts, ASCII 14->25 dropped 27 C:\Users\user\...\tKZVPq.exe:Zone.Identifier, ASCII 14->27 dropped 33 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 14->33 35 Tries to steal Mail credentials (via file / registry access) 14->35 37 Tries to harvest and steal ftp login credentials 14->37 39 3 other signatures 14->39 file8 signatures9
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/27ff4d7994a19e27c347e7794e0e48fa5c66f36e4f27ab407f9044494dd8c5a5/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-12-03 16:55:12 UTC
File Type:
PE (.Net Exe)
Extracted files:
7
AV detection:
22 of 28 (78.57%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=e77u26muugpcpq2h454u4dsi7jogn43oj4t2wqd7sbcestoyywsq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
149ebb356a2e08ec3894093087e9cd746eab8ac26577beb15a0275c8e0c13493
AgentTesla
284a7b827997880f862d34ae032872879702666ede431949cd345bc13544772c
AgentTesla
2d7312010d890025b8e61e9ed20a7e0fa79d5c97a19ddee26d7be69abaa97ca2
AgentTesla
3c1f525cc5b9c4b3813a01e008640ed40145cc00eb54e123d9b6f10c9425c655
AgentTesla
6f871f3642191d04e4fe20f022f738d89b3ad90b531cef6adde91d10f257431d
AgentTesla
7fb4a26d9f2c3a08c69d7f5838b7f88d8c6f31ab2aa69b130b150449baaea7ad
AgentTesla
be8a12f170e03547cd3ed2300e61f226ea4e94b7eed1c6845f7cc68ac6947d2d
AgentTesla
+ 13'256 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla collection evasion keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/211203-ve41nscac7/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Adds Run key to start application
Maps connected drives based on registry
Checks BIOS information in registry
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Drops file in Drivers directory
Looks for VMWare Tools registry key
AgentTesla Payload
Looks for VirtualBox Guest Additions in registry
AgentTesla
Unpacked files
SH256 hash:
79823e47436e129def4fba8ee225347a05b7bb27477fb1cc8be6dc9e9ce75696
MD5 hash:
39f524c1ab0eb76dfd79b2852e5e8c39
SHA1 hash:
428018e1701006744e34480b0029982a76d8a57d
Link:
https://www.unpac.me/results/8c64296c-1cab-44e8-91b6-627abcefe32e/
SH256 hash:
d2c67c4682cfc6d1b3018305ce440f1fbadbda303ce89a66b8bf20bb23cabcd6
MD5 hash:
647e0abc6422c7f6069a857db5c6c885
SHA1 hash:
0bd53fb2f8b26bd2b8038e14d1de32d43f01c16f
Link:
https://www.unpac.me/results/8c64296c-1cab-44e8-91b6-627abcefe32e/
SH256 hash:
b75ec5e79a2950e55aa7849e13404e8c9306256e6b9355089da890e6b6e14996
MD5 hash:
d6b3f5aab08853bead8975532594a6d7
SHA1 hash:
040aa10a04d0223b4593e133b8904b5fe9fbe83c
Link:
https://www.unpac.me/results/8c64296c-1cab-44e8-91b6-627abcefe32e/
SH256 hash:
27ff4d7994a19e27c347e7794e0e48fa5c66f36e4f27ab407f9044494dd8c5a5
MD5 hash:
becb8d72429e5816f294986a1772e1a6
SHA1 hash:
d0136b9a5e8443fbdafbd1d97df695f431eb794e
Link:
https://www.unpac.me/results/8c64296c-1cab-44e8-91b6-627abcefe32e/
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/27ff4d7994a19e27c347e7794e0e48fa5c66f36e4f27ab407f9044494dd8c5a5

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 27ff4d7994a19e27c347e7794e0e48fa5c66f36e4f27ab407f9044494dd8c5a5

(this sample)

  
Dropped by
agenttesla
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/211100/

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