MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 75bbb3a86312ba526d1eca1dd5f6a414a5d2d13232c0c2ee9a9ad655e30b3817. 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: 14


Intelligence 14 IOCs YARA 2 File information Comments

SHA256 hash: 75bbb3a86312ba526d1eca1dd5f6a414a5d2d13232c0c2ee9a9ad655e30b3817
SHA3-384 hash: 413bbbfd452cc69a5d587a56f6d4bce44a8f86b76336e3e91ddc3da3cac633ac5335bfe5f1ae078e85976c3f50a9f653
SHA1 hash: 71e8416fca6abc3ec9dfb6ba80f4d9edd6f169cb
MD5 hash: a2a7402355eeeef4fcfa24769d4c16ba
humanhash: four-earth-florida-fillet
File name:DOC.exe
Download: download sample
Signature AgentTesla
File size:891'392 bytes
First seen:2022-01-25 02:20:55 UTC
Last seen:2022-01-25 14:10:29 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 24576:6fs5r5afd94TbH94LV99BXHjDyislsaT:gI5OMdG99BXHdsls2
Threatray 14'181 similar samples on MalwareBazaar
TLSH T1AC15F127765ECE21C628137B40DF911843B87E46EA33D60ABEC537DE0E11B869E8855F
File icon (PE):PE icon
dhash icon 136d455d6d4d550b (25 x AgentTesla, 9 x Formbook, 5 x Loki)
Reporter GovCERT_CH
Tags:AgentTesla exe

Intelligence


File Origin
# of uploads :
5
# of downloads :
211
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
DNS request
Сreating synchronization primitives
Launching a process
Creating a file
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
control.exe obfuscated packed replace.exe update.exe
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
Detection:
malicious
Classification:
troj.adwa.evad
Score:
100 / 100
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains very large array initializations
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Machine Learning detection for sample
Modifies the hosts 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)
Sigma detected: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
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)
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected AntiVM3
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 559201 Sample: DOC.exe Startdate: 25/01/2022 Architecture: WINDOWS Score: 100 31 scsgroups.com 2->31 33 mail.scsgroups.com 2->33 43 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->43 45 Found malware configuration 2->45 47 Yara detected AgentTesla 2->47 49 6 other signatures 2->49 7 DOC.exe 3 2->7         started        11 kprUEGC.exe 2 2->11         started        13 kprUEGC.exe 1 2->13         started        signatures3 process4 file5 25 C:\Users\user\AppData\Local\...\DOC.exe.log, ASCII 7->25 dropped 51 Writes to foreign memory regions 7->51 53 Injects a PE file into a foreign processes 7->53 15 RegSvcs.exe 2 4 7->15         started        19 RegSvcs.exe 7->19         started        21 conhost.exe 11->21         started        23 conhost.exe 13->23         started        signatures6 process7 file8 27 C:\Users\user\AppData\Roaming\...\kprUEGC.exe, PE32 15->27 dropped 29 C:\Windows\System32\drivers\etc\hosts, ASCII 15->29 dropped 35 Modifies the hosts file 15->35 37 Hides that the sample has been downloaded from the Internet (zone.identifier) 15->37 39 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 19->39 41 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 19->41 signatures9
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2022-01-25 02:21:11 UTC
File Type:
PE (.Net Exe)
Extracted files:
14
AV detection:
20 of 28 (71.43%)
Threat level:
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
family:agenttesla collection keylogger persistence spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Adds Run key to start application
Drops file in Drivers directory
AgentTesla Payload
AgentTesla
Unpacked files
SH256 hash:
d1ac47b4dcbd0133c5b17b1fca407d598a00351ce1d6a214f1188b0b87444232
MD5 hash:
9ffd8aafb1d9c7a549671c63ad4ecbfc
SHA1 hash:
daeb9ffa388751fc2b12d526b3f9c59dad22a436
SH256 hash:
8325a5cf7942bb46ac528c836b79180c05d71a4e7de108693d303d56bcc5def1
MD5 hash:
efdf2c54a74297c24bc73285376c432b
SHA1 hash:
564f25afb6c5599cdcd5fafaff32c1475e581af4
SH256 hash:
5a24b1a0188261c70d0a5aeffb778500ed1512f16e5c11f6f5a7fa1ab78a7d38
MD5 hash:
89aa33b4e1ef0d577b9297dc0639a849
SHA1 hash:
28b5cdf3801d61923e6c1102c04e2e009212cb21
SH256 hash:
75bbb3a86312ba526d1eca1dd5f6a414a5d2d13232c0c2ee9a9ad655e30b3817
MD5 hash:
a2a7402355eeeef4fcfa24769d4c16ba
SHA1 hash:
71e8416fca6abc3ec9dfb6ba80f4d9edd6f169cb
Malware family:
Agent Tesla v3
Verdict:
Malicious
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:pe_imphash
Rule name:Skystars_Malware_Imphash
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 75bbb3a86312ba526d1eca1dd5f6a414a5d2d13232c0c2ee9a9ad655e30b3817

(this sample)

  
Dropped by
agenttesla
  
Delivery method
Distributed via e-mail attachment

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