MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 cbfffc4a13e6250ae35267d953c3bc197bd39e1845e86e893be6a5e8d889e0b4. 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: 16


Intelligence 16 IOCs YARA 2 File information Comments 1

SHA256 hash: cbfffc4a13e6250ae35267d953c3bc197bd39e1845e86e893be6a5e8d889e0b4
SHA3-384 hash: 9a5ffb7a14f746bbeb2f1ddbde5a7a6e4f05eb1f323937ca667824cfb50643b4e8455e8b0e2fe74365e114488e72b3b8
SHA1 hash: 2e59be776f807d6f6094e5f48d26137759777b5a
MD5 hash: 234310e8c8c038eb9e17fc11d97ec1d4
humanhash: hamper-edward-indigo-muppet
File name:234310e8c8c038eb9e17fc11d97ec1d4
Download: download sample
Signature AgentTesla
File size:961'536 bytes
First seen:2023-03-13 05:38:03 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 24576:xuOZ6wGkB+e9uf8qFyTsxTWAZzmnF5veJjdltCvhQo0OLlE:o8aeF6jvIEO
Threatray 3'440 similar samples on MalwareBazaar
TLSH T14615AE127C9CE06FE6728976D14254BC76691D24E32EECD314C4FEDE3AE1B031A5292B
TrID 63.0% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.2% (.SCR) Windows screen saver (13097/50/3)
9.0% (.EXE) Win64 Executable (generic) (10523/12/4)
5.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.8% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter zbetcheckin
Tags:32 AgentTesla exe

Intelligence


File Origin
# of uploads :
1
# of downloads :
277
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
agenttesla
ID:
1
File name:
234310e8c8c038eb9e17fc11d97ec1d4
Verdict:
Malicious activity
Analysis date:
2023-03-13 05:40:45 UTC
Tags:
agenttesla

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Сreating synchronization primitives
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a process from a recently created file
Creating a process with a hidden window
Creating a file in the %temp% directory
Launching a process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
formbook packed
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
troj.adwa.spyw.evad
Score:
100 / 100
Signature
Adds a directory exclusion to Windows Defender
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
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)
Sigma detected: Scheduled temp file as task from temp location
Snort IDS alert for network traffic
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)
Uses schtasks.exe or at.exe to add and modify task schedules
Uses the Telegram API (likely for C&C communication)
Yara detected AgentTesla
Yara detected Generic Downloader
Yara detected Telegram RAT
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 825086 Sample: W2Mt45CR7G.exe Startdate: 13/03/2023 Architecture: WINDOWS Score: 100 57 api.telegram.org 2->57 61 Snort IDS alert for network traffic 2->61 63 Malicious sample detected (through community Yara rule) 2->63 65 Antivirus / Scanner detection for submitted sample 2->65 67 7 other signatures 2->67 8 W2Mt45CR7G.exe 7 2->8         started        12 tzQXItkpp.exe 5 2->12         started        14 NXLun.exe 2->14         started        16 NXLun.exe 2->16         started        signatures3 process4 file5 49 C:\Users\user\AppData\Roaming\tzQXItkpp.exe, PE32 8->49 dropped 51 C:\Users\...\tzQXItkpp.exe:Zone.Identifier, ASCII 8->51 dropped 53 C:\Users\user\AppData\Local\...\tmp4E06.tmp, XML 8->53 dropped 55 C:\Users\user\AppData\...\W2Mt45CR7G.exe.log, ASCII 8->55 dropped 79 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 8->79 81 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 8->81 83 Uses schtasks.exe or at.exe to add and modify task schedules 8->83 85 Adds a directory exclusion to Windows Defender 8->85 18 W2Mt45CR7G.exe 17 5 8->18         started        23 powershell.exe 21 8->23         started        25 schtasks.exe 1 8->25         started        87 Antivirus detection for dropped file 12->87 89 Multi AV Scanner detection for dropped file 12->89 91 Machine Learning detection for dropped file 12->91 27 tzQXItkpp.exe 12->27         started        29 schtasks.exe 1 12->29         started        93 Injects a PE file into a foreign processes 14->93 31 schtasks.exe 14->31         started        33 NXLun.exe 14->33         started        signatures6 process7 dnsIp8 59 api.telegram.org 149.154.167.220, 443, 49701, 49702 TELEGRAMRU United Kingdom 18->59 43 C:\Users\user\AppData\Roaming\...43XLun.exe, PE32 18->43 dropped 45 C:\Windows\System32\drivers\etc\hosts, ASCII 18->45 dropped 47 C:\Users\user\...47XLun.exe:Zone.Identifier, ASCII 18->47 dropped 69 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 18->69 71 Tries to steal Mail credentials (via file / registry access) 18->71 73 Tries to harvest and steal ftp login credentials 18->73 77 2 other signatures 18->77 35 conhost.exe 23->35         started        37 conhost.exe 25->37         started        75 Hides that the sample has been downloaded from the Internet (zone.identifier) 27->75 39 conhost.exe 29->39         started        41 conhost.exe 31->41         started        file9 signatures10 process11
Threat name:
ByteCode-MSIL.Trojan.RemLoader
Status:
Malicious
First seen:
2023-03-10 05:27:19 UTC
File Type:
PE (.Net Exe)
Extracted files:
27
AV detection:
23 of 39 (58.97%)
Threat level:
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
family:agenttesla collection keylogger persistence spyware stealer trojan
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Enumerates physical storage devices
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Adds Run key to start application
Checks computer location settings
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
AgentTesla payload
AgentTesla
Malware Config
C2 Extraction:
https://api.telegram.org/bot1611551445:AAFDJ3yQMlB3zXJGib2_TFkq1jedBMj3GTw/sendDocument
Unpacked files
SH256 hash:
57c9f486be687ebc08a756e5fd750fc63f3f3b8892b46508589ecfd2b69c9eca
MD5 hash:
cd7051e0594ee4d89521baffc7693b41
SHA1 hash:
9b7ee6f1bc68f29807b96c7487b12c751cff427b
SH256 hash:
d06df7395d561e198f9b7c5481567116ff2e4c2e84437c018d2a2c8ea6c4ca37
MD5 hash:
0fb6061f7d37424fb9e6d0e76b019c19
SHA1 hash:
98a64bf7b459f032d6ec5793003bf61b5ae1dd74
SH256 hash:
ab1eac5713bdee6c74817c73ee1d7529e077b3ecba2a6ddf8cbaf8992f816ce3
MD5 hash:
55e0b02d16d64defb30823b0fcc0ffa0
SHA1 hash:
2fca0b5dff06866171f29da5c3f79239ac93dc5a
SH256 hash:
15c3bcf8be52f2b52c342588c0dab8c9380ab8d24166214309847eef6fd4d770
MD5 hash:
d5c2decd44a4d67b7876c59ab9c03cb0
SHA1 hash:
250dbe84e8fd3d12364289fea304feb125132cbd
SH256 hash:
cbfffc4a13e6250ae35267d953c3bc197bd39e1845e86e893be6a5e8d889e0b4
MD5 hash:
234310e8c8c038eb9e17fc11d97ec1d4
SHA1 hash:
2e59be776f807d6f6094e5f48d26137759777b5a
Malware family:
AgentTesla.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.

Web download

AgentTesla

Executable exe cbfffc4a13e6250ae35267d953c3bc197bd39e1845e86e893be6a5e8d889e0b4

(this sample)

  
Delivery method
Distributed via web download

Comments



Avatar
zbet commented on 2023-03-13 05:38:07 UTC

url : hxxp://192.3.109.145/70/vbc.exe