MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d49937e0591260a3ac4786590742570bbdf561425889822c1ee564a2b8fff67b. 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 4 File information Comments
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SHA256 hash: d49937e0591260a3ac4786590742570bbdf561425889822c1ee564a2b8fff67b
SHA3-384 hash: a59a7c26472c941a34460e016818654c4da86e47bb98c481ebc68159d5cc1f9a32f809c8c266a0064446ecbc910364b5
SHA1 hash: 9c1a887cd2aa930f7217b161086b5e9954e76cf0
MD5 hash: 302b98e7137292ea2007c530ef223187
humanhash: batman-crazy-berlin-winter
File name:hDL4BS7 Documents.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:1'127'936 bytes
First seen:2020-08-31 09:48:13 UTC
Last seen:2020-08-31 11:13:22 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'648 x AgentTesla, 19'452 x Formbook, 12'201 x SnakeKeylogger)
ssdeep 24576:U4S0fkifZq48h7y6wUuw3yw6SkfNaMnCyLS5D2:9Sqki0aWn6SCo2
Threatray 9'791 similar samples on MalwareBazaar
TLSH 2C35D04D3714AB6EC906F97955909CB8E1307962DB3BD282DCC32DE9B90D28FDA181D3
Reporter JAMESWT_WT
Tags:AgentTesla

Intelligence

File Origin
# of uploads :
2
# of downloads :
81
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV2
Create hunting rule
Link:
https://www.capesandbox.com/analysis/53371/
Detection(s):
SecuriteInfo.com.Artemis302B98E71372.926.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Launching a process
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/455174
Signature
Contains functionality to register a low level keyboard hook
Hides that the sample has been downloaded from the Internet (zone.identifier)
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Installs a global keyboard hook
Machine Learning detection for sample
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 steal Mail credentials (via file access)
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected AntiVM_3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 279967 Sample: hDL4BS7 Documents.exe Startdate: 31/08/2020 Architecture: WINDOWS Score: 100 30 Multi AV Scanner detection for submitted file 2->30 32 Yara detected AgentTesla 2->32 34 Yara detected AntiVM_3 2->34 36 3 other signatures 2->36 6 hDL4BS7 Documents.exe 3 2->6         started        10 HksDkVH.exe 2 2->10         started        12 HksDkVH.exe 1 2->12         started        process3 file4 26 C:\Users\user\...\hDL4BS7 Documents.exe.log, ASCII 6->26 dropped 38 Writes to foreign memory regions 6->38 40 Injects a PE file into a foreign processes 6->40 14 RegSvcs.exe 2 4 6->14         started        18 RegSvcs.exe 6->18         started        20 RegSvcs.exe 6->20         started        22 conhost.exe 10->22         started        24 conhost.exe 12->24         started        signatures5 process6 file7 28 C:\Users\user\AppData\Roaming\...\HksDkVH.exe, PE32 14->28 dropped 42 Tries to steal Mail credentials (via file access) 14->42 44 Tries to harvest and steal browser information (history, passwords, etc) 14->44 46 Hides that the sample has been downloaded from the Internet (zone.identifier) 14->46 48 Installs a global keyboard hook 14->48 50 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 18->50 52 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 18->52 54 Contains functionality to register a low level keyboard hook 18->54 signatures8
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/d49937e0591260a3ac4786590742570bbdf561425889822c1ee564a2b8fff67b/
Threat name:
ByteCode-MSIL.Trojan.Tiggre
Create hunting rule
Status:
Malicious
First seen:
2020-08-28 21:36:36 UTC
File Type:
PE (.Net Exe)
Extracted files:
7
AV detection:
22 of 29 (75.86%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=2smtpyczcjqkhlchqzmqoqsxbo67kykclceyela64vskfoh76z5q._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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AgentTesla
45286f8728324778e28e8e20ee34e789d7123e04158ac789dcbed9a94f42da6b
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4c0ba445450f16973c204aaab8265d888df2d38f822fbfcdf15249fbc3863356
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56f2c7b9d0efa06b177d87a0617b2a4ccb000d72599d046e3cc014628a4ca497
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640e087a78aa77a9bb49027500f1f29f9d31f5b64c13c99b690ea813d0737fd4
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6c7624c020bb11d5803286dc0fc1d9ee44d21be97207573051bcd322091a731b
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8846c5d088724ae06915e0e0f987ca3a65fba368095bc73f3109f6cb7841318b
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99dc64c72b1f6454e497a499216ad187c66e00f42ad23e3c5d240c39ed10b667
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a35e2cdf735f7548734e3a0647849754ce8b180809438efa67ae280454831443
AgentTesla
d169af713aac6178816694e1006b2e9f6411687fb13ed0402792222d380624f1
AgentTesla
+ 9'781 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
keylogger stealer trojan spyware family:agenttesla persistence
Link:
https://tria.ge/reports/200831-j37flb69de/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Reads user/profile data of local email clients
Reads user/profile data of web browsers
AgentTesla Payload
AgentTesla
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
AgentTesla
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/d49937e0591260a3ac4786590742570bbdf561425889822c1ee564a2b8fff67b

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_g2
Create hunting rule
Author:Daniel Plohmann <daniel.plohmann@fkie.fraunhofer.de>
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/53371/

Comments