MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8a900a79afb1a0bd442d7171568f7c5cda5cf9077e363612d39b237e4eacd635. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8a900a79afb1a0bd442d7171568f7c5cda5cf9077e363612d39b237e4eacd635
SHA3-384 hash: 321b7920b0827f709967efd420c77d6713b81e5520627c8158d4e2497caf9b247fa0b196accd66d50c13656ae50c24e1
SHA1 hash: 4aaf68449ad3c87436cbd861935ee9d8cf04d9a3
MD5 hash: 8902a508a43ca8ccf4ce446cf0d0ebac
humanhash: jig-mockingbird-berlin-berlin
File name:910635.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:14'336 bytes
First seen:2022-10-04 13:52:29 UTC
Last seen:2022-10-06 04:21:56 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'607 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 192:DCXKXvXLU4TD4bpbJF1THexLT/tFKkiKG05cOoNMXmUkJsNVd9WLzXaCA:DrU4TcllF1+xLT/tFBfGU6MXmU2Xh
Threatray 19'941 similar samples on MalwareBazaar
TLSH T183521A583281CB27EDD946B66C57D2203AFA7F9DA8A7D70F74C4B22BDC717A10913124
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon e4dcd8c4d4d4c4d4 (95 x AgentTesla, 51 x Formbook, 12 x RemcosRAT)
Reporter James_inthe_box
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
3
# of downloads :
280
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/316543/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Sending an HTTP GET request
Launching a process
Creating a process with a hidden window
Sending a custom TCP request
Creating a file in the %AppData% subdirectories
Unauthorized injection to a recently created process
Creating a file
Using the Windows Management Instrumentation requests
Creating a window
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/633c3abedace43a378f42e4e/reports/4180c4bc-e4f3-4ff2-85ee-ca124eff9a88/overview
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/57e77ea3-8fcc-440e-8df8-17b78ab1c128
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1083734
Signature
.NET source code contains very large array initializations
Creates multiple autostart registry keys
Encrypted powershell cmdline option found
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)
Multi AV Scanner detection for domain / URL
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 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)
Yara detected AgentTesla
Yara detected Costura Assembly Loader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 716288 Sample: 910635.exe Startdate: 05/10/2022 Architecture: WINDOWS Score: 100 40 smtp.convergentinterfreight.info 2->40 42 us2.smtp.mailhostbox.com 2->42 52 Snort IDS alert for network traffic 2->52 54 Multi AV Scanner detection for domain / URL 2->54 56 Malicious sample detected (through community Yara rule) 2->56 58 5 other signatures 2->58 8 910635.exe 16 7 2->8         started        13 Ftkaghor.exe 14 2 2->13         started        15 App.exe 14 2 2->15         started        17 2 other processes 2->17 signatures3 process4 dnsIp5 50 192.227.183.152, 49701, 49703, 49704 AS-COLOCROSSINGUS United States 8->50 34 C:\Users\user\AppData\...\Ftkaghor.exe, PE32 8->34 dropped 36 C:\Users\...\Ftkaghor.exe:Zone.Identifier, ASCII 8->36 dropped 38 C:\Users\user\AppData\...\910635.exe.log, ASCII 8->38 dropped 68 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 8->68 70 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 8->70 72 Encrypted powershell cmdline option found 8->72 78 2 other signatures 8->78 19 910635.exe 2 5 8->19         started        24 powershell.exe 16 8->24         started        26 910635.exe 8->26         started        74 Multi AV Scanner detection for dropped file 13->74 76 Machine Learning detection for dropped file 13->76 file6 signatures7 process8 dnsIp9 44 smtp.convergentinterfreight.info 19->44 46 us2.smtp.mailhostbox.com 208.91.199.225, 25, 49705, 49708 PUBLIC-DOMAIN-REGISTRYUS United States 19->46 48 192.168.2.1 unknown unknown 19->48 30 C:\Users\user\AppData\Roaming\App\App.exe, PE32 19->30 dropped 32 C:\Users\user\...\App.exe:Zone.Identifier, ASCII 19->32 dropped 60 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 19->60 62 Tries to steal Mail credentials (via file / registry access) 19->62 64 Creates multiple autostart registry keys 19->64 66 3 other signatures 19->66 28 conhost.exe 24->28         started        file10 signatures11 process12
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/8a900a79afb1a0bd442d7171568f7c5cda5cf9077e363612d39b237e4eacd635/
Threat name:
Win32.Trojan.Leonem
Create hunting rule
Status:
Malicious
First seen:
2022-10-04 14:11:25 UTC
AV detection:
18 of 26 (69.23%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=rkiau6npwgql2rbnofyvnd34ltnfz6ihpy3dmewttmrx4tvm2y2q._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
21069f1228603fb512b24e1c9f58cf57b370d93b5f78b8b9628e93c9c79a5f7c
AgentTesla
4c5f738dd2bfc890e9c66249928560fbbcc449e86ce9936744cc2ed132870f69
AgentTesla
71720ec77fe5f1bf93446abc71b1ae23da1e5bff3d45ca6eb0d52e8739e4a155
AgentTesla
9f3b0574ee8ea34114c6de2ed4f351552400569e42d4032a2ec5dcff3107af1c
AgentTesla
a2a3fd4b8c4a6ced54de6a596a9cd01b974ecd40fa7b016da293a1fb267efd0a
AgentTesla
ab91459253a14ca086ed1b79f0958b331fc09b7d611ef953ca85c045ff43024e
AgentTesla
d1be2499de89be1f90b8fba3abbf20cfd30152c3ae10674152b2604ac86d76ac
AgentTesla
+ 19'931 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/221004-q6y7aabdgk/
Behaviour
Checks processor information in registry
Enumerates system info in registry
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Enumerates physical storage devices
Drops file in System32 directory
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
AgentTesla
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/ef31dacb-8281-4058-86a8-8247124b139c
Unpacked files
SH256 hash:
8a900a79afb1a0bd442d7171568f7c5cda5cf9077e363612d39b237e4eacd635
MD5 hash:
8902a508a43ca8ccf4ce446cf0d0ebac
SHA1 hash:
4aaf68449ad3c87436cbd861935ee9d8cf04d9a3
Link:
https://www.unpac.me/results/ae34ae58-24c4-4957-8439-2593a428f314/
Malware family:
AgentTesla.v3
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/8a900a79afb1/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.35
Link:
https://yomi.yoroi.company/submissions/8a900a79afb1a0bd442d7171568f7c5cda5cf9077e363612d39b237e4eacd635

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:INDICATOR_EXE_Packed_SmartAssembly
Create hunting rule
Author:ditekSHen
Description:Detects executables packed with SmartAssembly
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.

  
Delivery method
Other
Cape
Cape
https://www.capesandbox.com/analysis/316543/

Comments