MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 51d790b7e7c7e1f1bf83e0c7f94dfe682ec48e6afeeaa61b0b0db7f8f187ea29. 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: 13


Intelligence 13 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 51d790b7e7c7e1f1bf83e0c7f94dfe682ec48e6afeeaa61b0b0db7f8f187ea29
SHA3-384 hash: 12ded9acbe594c83c0225b74af4359cbb61ee3e0b1b15cb159aa8c6d0c1b5d995fd36ca0c0975ddc1e13341789f784a6
SHA1 hash: 78d46123fb84e0e13d55054e3eed47dbb4cc078f
MD5 hash: 9e0039c142dd9ff79b54b250ded6b4c6
humanhash: monkey-echo-oregon-yankee
File name:4018695.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:337'000 bytes
First seen:2023-03-02 10:37:30 UTC
Last seen:2023-03-06 08:30:16 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 741 x AgentTesla, 427 x GuLoader)
ssdeep 6144:vYa628Q/c+a9T3rGYJvAz9DODsfmlEjp3JxKzSjziII5QdM:vYY8p+a9T6jzmsOCjp5xKzRIX+
Threatray 1'057 similar samples on MalwareBazaar
TLSH T1926412B676A9C47BEEB21572AE7E3B246DDBA51154B8950B03841B0DF433281F20F376
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter cocaman
Tags:AgentTesla exe Shipping

Intelligence

File Origin
# of uploads :
3
# of downloads :
201
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
4018695.exe
Verdict:
Malicious activity
Analysis date:
2023-03-02 10:39:31 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/7ed5522d-463f-4a32-825e-068d52073187

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/371083/
Detection(s):
SecuriteInfo.com.Win32.Trojan-gen.2156.634.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a file in the %temp% directory
Creating a window
Creating a process from a recently created file
Creating a file in the %AppData% subdirectories
Using the Windows Management Instrumentation requests
Сreating synchronization primitives
DNS request
Sending a custom TCP request
Reading critical registry keys
Sending an HTTP GET request
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process by context flags manipulation
Stealing user critical data
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
formbook overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/64007c8d2ea6b36966305b9b/reports/8dfa0c5b-a9e4-460c-8f1f-d35edb1a9ead/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/51d790b7e7c7e1f1bf83e0c7f94dfe682ec48e6afeeaa61b0b0db7f8f187ea29
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.
Malware family:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/4f8695c6-7991-46af-acd4-322dbe18c11b
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1185608
Signature
Creates multiple autostart registry keys
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
Machine Learning detection for sample
Maps a DLL or memory area into another process
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)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Yara detected AgentTesla
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 818475 Sample: 4018695.exe Startdate: 02/03/2023 Architecture: WINDOWS Score: 100 51 Multi AV Scanner detection for submitted file 2->51 53 Yara detected AgentTesla 2->53 55 Machine Learning detection for sample 2->55 7 4018695.exe 19 2->7         started        10 wgplueajfoxtdm.exe 1 2->10         started        13 wgplueajfoxtdm.exe 1 2->13         started        process3 file4 33 C:\Users\user\AppData\Local\...\valglsrdh.exe, PE32 7->33 dropped 15 valglsrdh.exe 1 3 7->15         started        57 Multi AV Scanner detection for dropped file 10->57 19 WerFault.exe 4 10 10->19         started        21 conhost.exe 10->21         started        23 WerFault.exe 10 13->23         started        25 conhost.exe 13->25         started        signatures5 process6 file7 35 C:\Users\user\AppData\...\wgplueajfoxtdm.exe, PE32 15->35 dropped 43 Multi AV Scanner detection for dropped file 15->43 45 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 15->45 47 May check the online IP address of the machine 15->47 49 4 other signatures 15->49 27 valglsrdh.exe 17 3 15->27         started        31 conhost.exe 15->31         started        signatures8 process9 dnsIp10 37 mail.flash-tours.gr 27->37 39 api4.ipify.org 173.231.16.76, 443, 49695 WEBNXUS United States 27->39 41 2 other IPs or domains 27->41 59 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 27->59 61 Tries to steal Mail credentials (via file / registry access) 27->61 63 Creates multiple autostart registry keys 27->63 65 Tries to harvest and steal browser information (history, passwords, etc) 27->65 signatures11
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/51d790b7e7c7e1f1bf83e0c7f94dfe682ec48e6afeeaa61b0b0db7f8f187ea29/
Threat name:
Win32.Trojan.Leonem
Create hunting rule
Status:
Malicious
First seen:
2023-03-02 08:38:22 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
23 of 25 (92.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=khlzbn7hy7q7dp4d4dd7stp6naxmjdtk73vkmgylbw37r4mh5iuq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
02d64b9cbd5268cec49399d35962acaac4e4548b96b0775b315811bc0c23c7e8
AgentTesla
09fb849e8e9e88b102e2935c7e7fac8fa1fe4c71e464e397bbad798a16e94c18
AgentTesla
10be0a18f4ee73fd9816b7b3acd31fc50cbdb61e3357751850887c7bbe53abbf
AgentTesla
4059686e35766f53fb8adf6d48a91c3773542bc25001a400b6065193a40136c7
AgentTesla
8d7295e173855afdd4a11d8b5b8d2b8ba7653e8b5d1b62f6261b6bfbfb5d25a7
AgentTesla
8f81fd0cd66548518e82ab4238cf83a55989de7b1ab9099ef43892d0272b41e5
AgentTesla
d6b1eec8bc20f67e635ce3b33938775757508384db07f1df35e4d09959f8cb6c
AgentTesla
fa851cb6401d335ba0efbeac4916ef565963723f68c939a772e28866c3863e9c
AgentTesla
+ 1'047 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/230302-mpdbpsce58/
Behaviour
Suspicious behavior: MapViewOfSection
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
Looks up external IP address via web service
Executes dropped EXE
Loads dropped DLL
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
AgentTesla
Unpacked files
SH256 hash:
7cda5a7f8c5af776151b74d9b086732b009c649706ce7dd0567c4d73086910de
MD5 hash:
307ad1f5e95ca943a67928907eb61b50
SHA1 hash:
35f57db25d58a7f110c568fcd6a59fce98ba1f68
Link:
https://www.unpac.me/results/d9e497c6-8216-4d57-bea8-790c8a9110ab/
SH256 hash:
762a423977f8cbaee11713efad653a3c228a052d819ddd228be3abe1fb846fdd
MD5 hash:
c80e2dcaf0d8f627e23eb389ca9413b8
SHA1 hash:
4886614fec425268b55093b721f83db053efc570
Link:
https://www.unpac.me/results/d9e497c6-8216-4d57-bea8-790c8a9110ab/
SH256 hash:
b61c152e90cd022644520b7afab6f99c9c3f40cf71fa0475963050707de4e8c4
MD5 hash:
db4df43b544774b8e4f3f4bba5aeeeee
SHA1 hash:
cf8776252798126f9e7cda36d2f9614605296574
Link:
https://www.unpac.me/results/d9e497c6-8216-4d57-bea8-790c8a9110ab/
SH256 hash:
51d790b7e7c7e1f1bf83e0c7f94dfe682ec48e6afeeaa61b0b0db7f8f187ea29
MD5 hash:
9e0039c142dd9ff79b54b250ded6b4c6
SHA1 hash:
78d46123fb84e0e13d55054e3eed47dbb4cc078f
Link:
https://www.unpac.me/results/d9e497c6-8216-4d57-bea8-790c8a9110ab/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/51d790b7e7c7e1f1bf83e0c7f94dfe682ec48e6afeeaa61b0b0db7f8f187ea29

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:cobalt_strike_tmp01925d3f
Create hunting rule
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:pe_imphash
Create hunting rule
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
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

zip 7b02ed202246ef836acff4f6b5d72b38bb06c3440b6bc91292b5c806359aa4a4

AgentTesla

Executable exe 51d790b7e7c7e1f1bf83e0c7f94dfe682ec48e6afeeaa61b0b0db7f8f187ea29

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 7b02ed202246ef836acff4f6b5d72b38bb06c3440b6bc91292b5c806359aa4a4
Cape
Cape
https://www.capesandbox.com/analysis/371083/
  
Dropped by
MD5 ac83cd2fad1b4c5e9d12cd7a9c943fd7

Comments