MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2efa47da756c50daf818bd8922e76c5baef462d780524e5243a753b675c97b0c. 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 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 2efa47da756c50daf818bd8922e76c5baef462d780524e5243a753b675c97b0c
SHA3-384 hash: 0b7be06d68782f7f1ce97e11d80c39de4b70979f2f60a76069a966dd537a7a98570c3f47787eb900347e3bc99c9a8b87
SHA1 hash: cc1a6728652804c07c5b39271c0c1ab43e2cb0cc
MD5 hash: b11423179b3d2eddd1804c135bb4dd4b
humanhash: ten-chicken-carolina-skylark
File name:2efa47da756c50daf818bd8922e76c5baef462d780524e5243a753b675c97b0c
Download: download sample
Signature AgentTesla
Create hunting rule
File size:1'195'008 bytes
First seen:2020-11-05 12:48:36 UTC
Last seen:2020-11-05 12:50:18 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:zaUASThrE+jN0Re8UNaq6ZNupDf0qDWV7JU6jgP+sfipFl:6STtXqRe8fPZNupz0qy26cGw8
Threatray 10'876 similar samples on MalwareBazaar
TLSH 0C45D0F5A142DA9AC80F047FF44B256183EACF2D99F8454693C5F22D137D2CA67AC48B
Reporter madjack_red
Tags:AgentTesla

Intelligence

File Origin
# of uploads :
2
# of downloads :
87
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV2
Create hunting rule
Link:
https://www.capesandbox.com/analysis/83251/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Unauthorized injection to a recently created process
Creating a file
Using the Windows Management Instrumentation requests
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.
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/521467
Signature
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Installs a global keyboard hook
Machine Learning detection for dropped file
Machine Learning detection for sample
Moves itself to temp directory
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)
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)
Yara detected AgentTesla
Yara detected AntiVM_3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 309833 Sample: Rt1E0SHSxR Startdate: 05/11/2020 Architecture: WINDOWS Score: 100 57 Found malware configuration 2->57 59 Multi AV Scanner detection for submitted file 2->59 61 Yara detected AgentTesla 2->61 63 3 other signatures 2->63 6 Rt1E0SHSxR.exe 3 2->6         started        10 WNRUXJ.exe 3 2->10         started        12 WNRUXJ.exe 2 2->12         started        process3 file4 29 C:\Users\user\AppData\...\Rt1E0SHSxR.exe.log, ASCII 6->29 dropped 65 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 6->65 67 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 6->67 69 Injects a PE file into a foreign processes 6->69 14 Rt1E0SHSxR.exe 2 9 6->14         started        19 Rt1E0SHSxR.exe 6->19         started        71 Multi AV Scanner detection for dropped file 10->71 73 Machine Learning detection for dropped file 10->73 21 WNRUXJ.exe 6 10->21         started        23 WNRUXJ.exe 10->23         started        25 WNRUXJ.exe 10->25         started        27 WNRUXJ.exe 12->27         started        signatures5 process6 dnsIp7 35 smtp.yandex.ru 77.88.21.158, 49732, 49738, 49741 YANDEXRU Russian Federation 14->35 37 smtp.yandex.com 14->37 31 C:\Users\user\AppData\Roaming\...\WNRUXJ.exe, PE32 14->31 dropped 33 C:\Users\user\...\WNRUXJ.exe:Zone.Identifier, ASCII 14->33 dropped 43 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 14->43 45 Moves itself to temp directory 14->45 47 Tries to steal Mail credentials (via file access) 14->47 49 Installs a global keyboard hook 14->49 39 192.168.2.1 unknown unknown 21->39 41 smtp.yandex.com 21->41 51 Tries to harvest and steal ftp login credentials 21->51 53 Tries to harvest and steal browser information (history, passwords, etc) 21->53 55 Hides that the sample has been downloaded from the Internet (zone.identifier) 21->55 file8 signatures9
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/2efa47da756c50daf818bd8922e76c5baef462d780524e5243a753b675c97b0c/
Threat name:
ByteCode-MSIL.Spyware.Negasteal
Create hunting rule
Status:
Malicious
First seen:
2020-11-05 05:13:12 UTC
AV detection:
24 of 29 (82.76%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=f35epwtvnrinv6ayxwesfz3mloxpiywxqbje4usdu5j3m5ojpmga._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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0f9c3e7962330f174a7529d7edd7981c9ffb4f0f1d6eee585a7f3467b5c06a49
AgentTesla
1546f9a4e9f744fd5252592238121b3fca461a09718c9b5ac14b145c7cffa467
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41355f2507c477d56150ad6facafd27120e0bceb06c905af89748246d3212a9f
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691eb9a4675c76f72ca03595137e3215b3ddf27c040d7bc871301ef847b0f609
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6ef9a45a617adf0e0ff740e37c865325289a110394725c393c314a3128a2575f
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b2532be6f4f18504d0cdb50f75d84d41880203d3ad0d51a499ea8d48b2d97a64
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d34d2c3fe83f82a8a0faa213fe60202f765aadf5895fbe12996d40db44afadc5
AgentTesla
d95ea08895ffa4a8f287959f77923ac430b1d07896253825f8b1d3d98e9ffdf3
AgentTesla
+ 10'866 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/201105-esw9j433rx/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Modifies service
Suspicious use of SetThreadContext
Adds Run key to start application
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
AgentTesla Payload
AgentTesla
Unpacked files
SH256 hash:
2efa47da756c50daf818bd8922e76c5baef462d780524e5243a753b675c97b0c
MD5 hash:
b11423179b3d2eddd1804c135bb4dd4b
SHA1 hash:
cc1a6728652804c07c5b39271c0c1ab43e2cb0cc
Link:
https://www.unpac.me/results/a2c0da51-d360-4a48-a1d9-05abe3ccf4a4/
SH256 hash:
31ce938626ccfb399fe1696710caf46d7ae9eb598b9d7d2aad719b594658469b
MD5 hash:
0aebe46040ceb011e78506d4985fe3de
SHA1 hash:
218ac1e7b14a66c604ec3042f8486bed9cd4c2c1
Link:
https://www.unpac.me/results/a2c0da51-d360-4a48-a1d9-05abe3ccf4a4/
SH256 hash:
848b4b4e8b7ef70a228dc27308c9792336a1c327f2fee6e3e05fec31ea24d385
MD5 hash:
bd1b34c1c48d6e3c65d1033efce38428
SHA1 hash:
25f4841b8cf5e27f7191b5bd2fb32381987080cf
Detections:
win_agent_tesla_w1
Create hunting rule
Link:
https://www.unpac.me/results/a2c0da51-d360-4a48-a1d9-05abe3ccf4a4/
Parent samples :
d95ea08895ffa4a8f287959f77923ac430b1d07896253825f8b1d3d98e9ffdf3
2efa47da756c50daf818bd8922e76c5baef462d780524e5243a753b675c97b0c
SH256 hash:
043cc94a1cad8eb8d811367b721233f2358c30763681046da809deb239360e0c
MD5 hash:
18524b7a7db3665e0929d9d365047f82
SHA1 hash:
c6d6b4290031c7272f9208d59e0e06d5897be831
Link:
https://www.unpac.me/results/a2c0da51-d360-4a48-a1d9-05abe3ccf4a4/
Please note that we are no longer able to provide a coverage score for Virus Total.

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_extracted_bin
Create hunting rule
Author:James_inthe_box
Description:AgentTesla extracted
Rule name:AgentTesla_mod_tough_bin
Create hunting rule
Author:James_inthe_box
Reference:https://app.any.run/tasks/3b5d409c-978b-4a95-a5f1-399f0216873d/
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.

Cape
Cape
https://www.capesandbox.com/analysis/83251/

Comments