MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7b8b1dc1843eb601fea0db72ac0d4263a5e4a0517ef8a138e20d81950e5686c3. 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: 15


Intelligence 15 IOCs YARA 7 File information Comments

SHA256 hash: 7b8b1dc1843eb601fea0db72ac0d4263a5e4a0517ef8a138e20d81950e5686c3
SHA3-384 hash: 8532720773473e246a325093d40c2913ec13a0441f5599614b90483428f71553fbae23cb9f56febb4fd35ad64e71de71
SHA1 hash: f78cf8376bb74272c445a25afc7aa1fb3237e2b6
MD5 hash: 99ddcf878ae0537cd0423769c4a8e831
humanhash: carolina-lemon-pip-undress
File name:Overdue invoice 12010643.exe
Download: download sample
Signature AgentTesla
File size:878'080 bytes
First seen:2023-07-20 11:59:09 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'741 x AgentTesla, 19'604 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:dZfr/QzCWmVEc035Bg74x12/ZuI7L9AnjUFLngn:TfrYzCrVEvg74x1kX979gn
Threatray 5'053 similar samples on MalwareBazaar
TLSH T1F3157E9F32B8C78AE55DB6B074210639CAEA942F61DED7493F24E0A416D93EC1150FB3
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
File icon (PE):PE icon
dhash icon e4b0f0c2f4dcd8e4 (2 x AgentTesla)
Reporter pr0xylife
Tags:AgentTesla exe

Intelligence


File Origin
# of uploads :
1
# of downloads :
319
Origin country :
CA CA
Vendor Threat Intelligence
Malware family:
agenttesla
ID:
1
File name:
Overdue invoice 12010643.exe
Verdict:
Malicious activity
Analysis date:
2023-07-20 12:01:35 UTC
Tags:
agenttesla stealer

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
lolbin masquerade packed replace
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.spyw.evad
Score:
100 / 100
Signature
Found malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
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 network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Sample uses string decryption to hide its real strings
Sigma detected: Scheduled temp file as task from temp location
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)
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AgentTesla
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1276747 Sample: Overdue_invoice_12010643.exe Startdate: 20/07/2023 Architecture: WINDOWS Score: 100 33 Found malware configuration 2->33 35 Sigma detected: Scheduled temp file as task from temp location 2->35 37 Multi AV Scanner detection for submitted file 2->37 39 4 other signatures 2->39 7 Overdue_invoice_12010643.exe 6 2->7         started        11 NIIaGzqvxcWiS.exe 2 2->11         started        process3 file4 21 C:\Users\user\AppData\...21IIaGzqvxcWiS.exe, PE32 7->21 dropped 23 C:\Users\user\AppData\Local\...\tmp20B4.tmp, XML 7->23 dropped 25 C:\Users\...\Overdue_invoice_12010643.exe.log, ASCII 7->25 dropped 41 Uses schtasks.exe or at.exe to add and modify task schedules 7->41 43 Writes to foreign memory regions 7->43 45 Injects a PE file into a foreign processes 7->45 13 RegSvcs.exe 15 2 7->13         started        17 schtasks.exe 1 7->17         started        47 Multi AV Scanner detection for dropped file 11->47 49 Machine Learning detection for dropped file 11->49 signatures5 process6 dnsIp7 27 mail.napco-pharma.com 198.38.88.80, 49701, 587 SERVERCENTRALUS United States 13->27 29 api4.ipify.org 64.185.227.156, 443, 49700 WEBNXUS United States 13->29 31 3 other IPs or domains 13->31 51 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 13->51 53 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 13->53 55 May check the online IP address of the machine 13->55 57 2 other signatures 13->57 19 conhost.exe 17->19         started        signatures8 process9
Threat name:
Win32.Trojan.Leonem
Status:
Malicious
First seen:
2023-07-20 09:57:30 UTC
File Type:
PE (.Net Exe)
Extracted files:
31
AV detection:
23 of 38 (60.53%)
Threat level:
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
family:agenttesla collection keylogger 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
Looks up external IP address via web service
Checks computer location settings
AgentTesla
Unpacked files
SH256 hash:
a820e55e3d2d506dae6691661273c740ef17f693654eb1de046c2efe7b42edf4
MD5 hash:
39be4cc27954e4ff7f21e645923f0264
SHA1 hash:
98fb627bcd54dcfb6abfa84c40c63b7e34fd4d84
SH256 hash:
cafeeb0da3ca600c76735df8d3877638ae83d6b571b9de70e7329d1e19b29ed9
MD5 hash:
ff6060392bfd0ae59c90399420b8da18
SHA1 hash:
147fe8759278c070842756e04f06e79566342d27
Detections:
AgentTeslaXorStringsNet
SH256 hash:
ae2b800afd27223fee84ef5bd69fa2055f6f9ea1a3a529647aca62857bf619bb
MD5 hash:
849666fff9248169d858aa21cc6c6ce7
SHA1 hash:
0b6d88a2d09b8ea02014bb4d6c8ca03feb2b9a8c
SH256 hash:
7b8b1dc1843eb601fea0db72ac0d4263a5e4a0517ef8a138e20d81950e5686c3
MD5 hash:
99ddcf878ae0537cd0423769c4a8e831
SHA1 hash:
f78cf8376bb74272c445a25afc7aa1fb3237e2b6
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:AgentTeslaV4
Author:Rony (r0ny_123)
Rule name:INDICATOR_EXE_Packed_GEN01
Author:ditekSHen
Description:Detect packed .NET executables. Mostly AgentTeslaV4.
Rule name:MSIL_SUSP_OBFUSC_XorStringsNet
Author:dr4k0nia
Description:Detects XorStringsNET string encryption, and other obfuscators derived from it
Reference:https://github.com/dr4k0nia/yara-rules
Rule name:msil_susp_obf_xorstringsnet
Author:dr4k0nia
Description:Detects XorStringsNET string encryption, and other obfuscators derived from it
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.

Comments