MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 37b12c3ecf410a6a0aa7f38dc28d2f7d6338a9616c53e2515724f5f7e3b6715c. 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 8 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 37b12c3ecf410a6a0aa7f38dc28d2f7d6338a9616c53e2515724f5f7e3b6715c
SHA3-384 hash: ee3795399e26901210e2c2e50b4aab7f449f1336d46180551d0e10417c1822f91ad3f9156329870eed078c549bc7c9c6
SHA1 hash: 69b15cf78eadb6cd53037800fa29923bb0b87945
MD5 hash: b19a2a4b7518271197afa5e5e657dbc7
humanhash: lion-solar-carbon-arkansas
File name:37b12c3ecf410a6a0aa7f38dc28d2f7d6338a9616c53e2515724f5f7e3b6715c
Download: download sample
Signature AgentTesla
Create hunting rule
File size:589'824 bytes
First seen:2020-11-26 14:13:39 UTC
Last seen:2020-11-26 16:08:37 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 60293b347b1544ab444c4ad739e7482a (1 x Formbook, 1 x AgentTesla)
ssdeep 12288:5NKBg41vrMoqyWp4DQhU9Ok4U/wlGyDtP9wAnSHtafHzoj4r5LIl:DKBvwCR4U43U/StP9Znaa7oWKl
Threatray 9'775 similar samples on MalwareBazaar
TLSH 22C402103189C4B5E05611BE940AD3B54F2A78B51976BEABBFC306FD1FA46D2DA1830F
Reporter madjack_red
Tags:AgentTesla

Intelligence

File Origin
# of uploads :
2
# of downloads :
115
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/105743/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a file in the %temp% subdirectories
Creating a file
Running batch commands
Unauthorized injection to a recently created process
Creating a window
Launching a process
Using the Windows Management Instrumentation requests
Reading critical registry keys
Stealing user critical data
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.
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/548277
Signature
.NET source code contains potential unpacker
Detected unpacking (creates a PE file in dynamic memory)
Found evasive API chain (trying to detect sleep duration tampering with parallel thread)
Found malware configuration
Machine Learning detection for dropped file
Machine Learning detection for sample
Maps a DLL or memory area into another process
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 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
Yara detected AgentTesla
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 323240 Sample: 4nfg3g3nwg Startdate: 26/11/2020 Architecture: WINDOWS Score: 100 34 Found malware configuration 2->34 36 Multi AV Scanner detection for submitted file 2->36 38 Yara detected AgentTesla 2->38 40 4 other signatures 2->40 7 4nfg3g3nwg.exe 4 2->7         started        process3 file4 26 C:\Users\user\AppData\Local\Temp\...\file.exe, PE32 7->26 dropped 28 C:\...\be2cf8a04c944696b2f8321280f226c1.xml, XML 7->28 dropped 50 Detected unpacking (creates a PE file in dynamic memory) 7->50 52 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->52 54 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 7->54 56 Found evasive API chain (trying to detect sleep duration tampering with parallel thread) 7->56 11 4nfg3g3nwg.exe 2 7->11         started        14 cmd.exe 1 7->14         started        16 conhost.exe 7->16         started        18 4nfg3g3nwg.exe 7->18         started        signatures5 process6 signatures7 58 Maps a DLL or memory area into another process 11->58 20 4nfg3g3nwg.exe 4 11->20         started        24 schtasks.exe 1 14->24         started        process8 dnsIp9 30 hybridgroupco.com 66.70.204.222, 49750, 587 OVHFR Canada 20->30 32 mail.hybridgroupco.com 20->32 42 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 20->42 44 Tries to steal Mail credentials (via file access) 20->44 46 Tries to harvest and steal ftp login credentials 20->46 48 Tries to harvest and steal browser information (history, passwords, etc) 20->48 signatures10
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/37b12c3ecf410a6a0aa7f38dc28d2f7d6338a9616c53e2515724f5f7e3b6715c/
Threat name:
Win32.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2020-11-26 06:39:13 UTC
AV detection:
25 of 29 (86.21%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=g6ysypwpiefgucvh6og4fdjppvrtrklbnrj6eukxet27py5wofoa._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
38de2a27f6860ff3215434f3088f37ffc36c3a487fbfcee619bd1af281883624
AgentTesla
404a8a0adbd4a85e364eb3083b802c19282bfd1cb34a74ca257141db1fca34bb
AgentTesla
537138289e71224816b26b83db4b7d5fe1021e7b915bb512bdb99b8ae5969aae
AgentTesla
99fa917c6f97756ac7ced3ca06142728178550f72be70326ab30420fd4e9797e
AgentTesla
b745f8bc7dd3ee96edc308bcfbe51d0807a32a31be0a99b56a847d9df84cc200
AgentTesla
c62b96f303f538748543747d1dacb97119dd9826b53ef6c8350b5b24d69f0006
AgentTesla
ce0d61881089155602217097bc0d8767227eaa1128087e0e2ea230abab0246ff
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e111f55125b49b9f9f07fecc8f6506062248511cda75a4428b677536db0df8d1
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e5a881a192dcbc6434585a8a1fa4745488f092b9713945def86fe6c2a87de5fd
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ff339c6387678ac6ad9e7403a579d0d52dbac97e94b65d0a6a1ea852bd10673a
AgentTesla
+ 9'765 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/201126-qt8c97dgva/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
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:
d437294f5fb22f13a6c35ba4974c6a4025ca7c613163d7196640c1383570afa3
MD5 hash:
26ed2921e9b983bc36f393d588b6422f
SHA1 hash:
25bf0a9b188504b83ddf3ad8182aedc00bffa098
Detections:
win_agent_tesla_w1
Create hunting rule
Link:
https://www.unpac.me/results/9755a744-4042-4cc3-a7c0-e8f143d9f9d1/
Parent samples :
ab31adfeabb7c40d485b9926f5c9ad2c51605202546aa5619163a0165e31b10f
404a8a0adbd4a85e364eb3083b802c19282bfd1cb34a74ca257141db1fca34bb
f114260deddc0c7ea49c9a76fca65890679874e9d295c0015d6de8f736fb8c5e
c62b96f303f538748543747d1dacb97119dd9826b53ef6c8350b5b24d69f0006
d0ea8610ecee6c92c50af51c37a0a49f8550768609a08a5a2dcaf98bb06dcff3
37b12c3ecf410a6a0aa7f38dc28d2f7d6338a9616c53e2515724f5f7e3b6715c
SH256 hash:
f765ed9009439b2925b6bf5438524cdcc30251d0843d96e607c554a067061605
MD5 hash:
a27c7f1fa50c95096462ef489abc0571
SHA1 hash:
048e62a1a37f1ae46e736a8044ea3ff2b761fef9
Detections:
win_agent_tesla_w1
Create hunting rule
Link:
https://www.unpac.me/results/9755a744-4042-4cc3-a7c0-e8f143d9f9d1/
SH256 hash:
37b12c3ecf410a6a0aa7f38dc28d2f7d6338a9616c53e2515724f5f7e3b6715c
MD5 hash:
b19a2a4b7518271197afa5e5e657dbc7
SHA1 hash:
69b15cf78eadb6cd53037800fa29923bb0b87945
Link:
https://www.unpac.me/results/9755a744-4042-4cc3-a7c0-e8f143d9f9d1/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
qbot
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/37b12c3ecf410a6a0aa7f38dc28d2f7d6338a9616c53e2515724f5f7e3b6715c

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:agent_tesla_2019
Create hunting rule
Author:jeFF0Falltrades
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_g2
Create hunting rule
Author:Daniel Plohmann <daniel.plohmann@fkie.fraunhofer.de>
Rule name:win_agent_tesla_v1
Create hunting rule
Author:Johannes Bader @viql
Description:detects Agent Tesla
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/105743/

Comments