MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a46c5cff0996f7577d553c47f320ef079864527d266802f35a7d032850d9bba3. 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
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a46c5cff0996f7577d553c47f320ef079864527d266802f35a7d032850d9bba3
SHA3-384 hash: a31001c247382ef9e7096de9578ccb6145eb16393268f9ec7c0ca0a88f6a8c2945840082a37adf9601a23b453fece7b9
SHA1 hash: a40e0a5983b60104eb7c582e1e1378084894171a
MD5 hash: d5f2f246477c3be16555e92ccab7e936
humanhash: glucose-item-juliet-nitrogen
File name:nm7b03DFo5JLtbV.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:696'832 bytes
First seen:2023-01-31 04:53:18 UTC
Last seen:2023-01-31 06:28:14 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'608 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:Qs9BFjCfuXdm4S4w1gzs43aIJjahSy9xmJriRy36QAYEZA9qlbCd2oMI:jXYw2I3Qmt96QAUdd
Threatray 6'573 similar samples on MalwareBazaar
TLSH T195E42201B7E88359CC990A394DA45E0847B46C94F8BBEB1A3DC174DE9937BA0504EF9F
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 Anonymous
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
205
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
nm7b03DFo5JLtbV.exe
Verdict:
Malicious activity
Analysis date:
2023-01-31 05:04:50 UTC
Tags:
agenttesla
Link:
https://app.any.run/tasks/587d0d7f-a34e-44b3-a193-692d0e32529c

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/358536/
Detection(s):
SecuriteInfo.com.Trojan.GenericKD.65200708.9992.15300.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
DNS request
Sending a custom TCP request
Unauthorized injection to a recently created process
Creating a file
Using the Windows Management Instrumentation requests
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/63d89eed89bd67c10fdbbfb7/reports/c7cb05df-6cab-47b3-a7b1-1c2926b1fe21/overview
Result
Verdict:
MALICIOUS
Malware family:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/dcf4c4bd-0c58-4ade-a311-669087c315fe
Result
Threat name:
AgentTesla, zgRAT
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1162138
Signature
.NET source code contains very large array initializations
Contains functionality to register a low level keyboard hook
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
Malicious sample detected (through community Yara rule)
May check the online IP address of the machine
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)
Snort IDS alert for network traffic
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 / registry access)
Uses the Telegram API (likely for C&C communication)
Yara detected AgentTesla
Yara detected AntiVM3
Yara detected Telegram RAT
Yara detected zgRAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 794888 Sample: nm7b03DFo5JLtbV.exe Startdate: 31/01/2023 Architecture: WINDOWS Score: 100 51 Snort IDS alert for network traffic 2->51 53 Malicious sample detected (through community Yara rule) 2->53 55 Multi AV Scanner detection for submitted file 2->55 57 8 other signatures 2->57 6 nm7b03DFo5JLtbV.exe 3 2->6         started        10 Skype.exe 2 2->10         started        12 Skype.exe 3 2->12         started        process3 file4 23 C:\Users\user\...\nm7b03DFo5JLtbV.exe.log, ASCII 6->23 dropped 59 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 6->59 61 May check the online IP address of the machine 6->61 63 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 6->63 65 Contains functionality to register a low level keyboard hook 6->65 14 nm7b03DFo5JLtbV.exe 17 6 6->14         started        67 Injects a PE file into a foreign processes 10->67 19 Skype.exe 3 10->19         started        69 Multi AV Scanner detection for dropped file 12->69 71 Machine Learning detection for dropped file 12->71 21 Skype.exe 14 2 12->21         started        signatures5 process6 dnsIp7 29 api4.ipify.org 64.185.227.155, 443, 49696, 49698 WEBNXUS United States 14->29 31 api.telegram.org 149.154.167.220, 443, 49697, 49700 TELEGRAMRU United Kingdom 14->31 37 2 other IPs or domains 14->37 25 C:\Users\user\AppData\Roaming\...\Skype.exe, PE32 14->25 dropped 27 C:\Users\user\...\Skype.exe:Zone.Identifier, ASCII 14->27 dropped 39 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 14->39 41 Tries to steal Mail credentials (via file / registry access) 14->41 43 Hides that the sample has been downloaded from the Internet (zone.identifier) 14->43 33 api.ipify.org 19->33 45 Tries to harvest and steal ftp login credentials 19->45 47 Tries to harvest and steal browser information (history, passwords, etc) 19->47 49 Installs a global keyboard hook 19->49 35 api.ipify.org 21->35 file8 signatures9
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a46c5cff0996f7577d553c47f320ef079864527d266802f35a7d032850d9bba3/
Threat name:
ByteCode-MSIL.Trojan.Leonem
Create hunting rule
Status:
Malicious
First seen:
2023-01-27 10:39:45 UTC
File Type:
PE (.Net Exe)
Extracted files:
10
AV detection:
18 of 23 (78.26%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=urwfz7yjs33vo7kvhrd7gihpa6mgiut5ezuaf422pubsqugzxorq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
312846aa9e03309b26afb98272f073907a5aec8b133f9c7d2bb476bf0ad42ed0
AgentTesla
59ab05310f9b369f794c927751f40fd7c9b0f32dc65726e6b89d570e8bc95204
AgentTesla
7f7322dd08a3f54e840b31b0c1c01a65676701cb15ed97ea3cdb6b0edf5402db
AgentTesla
900d24991fb4b37b0136ed21bb5d40ca4422506c367fb3520f350fb228dc44a1
AgentTesla
980572025579ff98c1ab84aa8c0c045e075d174bc5bb166e2694590c98f90a54
AgentTesla
f227b51c6347b3acf53b8e54e84864c2c3e4ef973226bc517f0f9852dbc1bfcc
AgentTesla
f35f9889a78db07e0bf0f10f6c612314cb8239c756ef519653cee0ea534583a6
AgentTesla
+ 6'563 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla collection keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/230131-fjlbssef89/
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
Looks up external IP address via web service
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
AgentTesla
Malware Config
C2 Extraction:
https://api.telegram.org/bot5801961827:AAHU2YhkfiXQwgVf7WnbO6mcJG_3zpTOec4/
Unpacked files
SH256 hash:
96dd947b749b62452d4e26af9e0b08c2ce7fe84b4c60d89c1d0708399d8d8066
MD5 hash:
d44b895b94cc980f9c849941e576cd78
SHA1 hash:
d97b674d6e0feb6b2bf2304744e0d772b9e6cb28
Link:
https://www.unpac.me/results/f63b3919-0a4c-4799-857f-081ae57a9ee7/
SH256 hash:
54d781f0dee6692c47390edf1ada295fb17a7e80ed5ccd58ab14c6ddf80a0ad8
MD5 hash:
4f6caebd865502f7c8046fbae3284c61
SHA1 hash:
be357e832bf6f61454875b37a1759cf1c5fa5ca4
Link:
https://www.unpac.me/results/f63b3919-0a4c-4799-857f-081ae57a9ee7/
SH256 hash:
411569f9f0b865c651adc1234d23f86cd98fe5cd641704702276e9882be113b6
MD5 hash:
7648892096f37af50468509c5b051180
SHA1 hash:
a56a074c2770152761f6c4975db0e9f7d57f8cda
Link:
https://www.unpac.me/results/f63b3919-0a4c-4799-857f-081ae57a9ee7/
SH256 hash:
6e0ab7dc977af168941d880e1f3fed1848d3de6cf438380167e71d5cec042a89
MD5 hash:
ee0446a648541ea40e50e08a0e27f1cc
SHA1 hash:
5e0c38ac8261597d2e5ce22b7f5b9752bc3de387
Link:
https://www.unpac.me/results/f63b3919-0a4c-4799-857f-081ae57a9ee7/
SH256 hash:
c0e11b03defb02b666aab809ac2ccd5fec2047d1ceddcf10cbdc70da9c01f5c4
MD5 hash:
fd2ae1908bebbb9a907dd7276918fd00
SHA1 hash:
52b17eb426980a0b0b202366695f8d923f3d048f
Link:
https://www.unpac.me/results/f63b3919-0a4c-4799-857f-081ae57a9ee7/
SH256 hash:
a46c5cff0996f7577d553c47f320ef079864527d266802f35a7d032850d9bba3
MD5 hash:
d5f2f246477c3be16555e92ccab7e936
SHA1 hash:
a40e0a5983b60104eb7c582e1e1378084894171a
Link:
https://www.unpac.me/results/f63b3919-0a4c-4799-857f-081ae57a9ee7/
Malware family:
AgentTesla
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a46c5cff0996/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
AgentTesla
Score:
0.90
Link:
https://yomi.yoroi.company/submissions/a46c5cff0996f7577d553c47f320ef079864527d266802f35a7d032850d9bba3

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
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
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 a46c5cff0996f7577d553c47f320ef079864527d266802f35a7d032850d9bba3

(this sample)

  
Dropped by
agenttesla
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/358536/

Comments