MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 99d6404e4262cbe32a216ae2493bb98d809345d69b8195ae7266b0114d16a587. 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: 12


Intelligence 12 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 99d6404e4262cbe32a216ae2493bb98d809345d69b8195ae7266b0114d16a587
SHA3-384 hash: b5d0dd84aa61cff3d797d8a23999dd07aaf9b6bbb5053094a44772cb95109e6ed8bbd0d1ff432b30535265c7644660f8
SHA1 hash: 1fe7286e08fcf993b3af10744f9b48f474554c3d
MD5 hash: c00c56cc3d27cd9eb2676e170fe20c62
humanhash: floor-sierra-october-social
File name:Wrong_Invoice.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:634'368 bytes
First seen:2021-03-29 15:01:04 UTC
Last seen:2021-03-29 16:25:54 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'473 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:oxyAHcUYLMLCCPMMWKFrl3kRlR/ZFnVmqxL31Huyg3RmTsC5:KjHS2NgJtuvPC
Threatray 3'549 similar samples on MalwareBazaar
TLSH 9CD469A321FC31EFE40AA33955570A5E5F507F72AA378D0E903639F86739F858522C92
Reporter GovCERT_CH
Tags:AgentTesla

Intelligence

File Origin
# of uploads :
2
# of downloads :
112
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Wrong_Invoice.exe
Verdict:
Malicious activity
Analysis date:
2021-03-29 15:05:28 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/1f840b3f-7a1b-48a9-b0cf-485612e64a2b

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/127683/
Detection(s):
SecuriteInfo.com.Trojan.Inject4.8557.24317.26242.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Creating a file
Using the Windows Management Instrumentation requests
Creating a file in the %AppData% subdirectories
Forced shutdown of a system process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Enabling autorun by creating a file
Unauthorized injection to a system process
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/c7cc33ae-3335-40f4-aeff-53ceae8b86d1
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/657119
Signature
.NET source code contains very large array initializations
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Detected unpacking (changes PE section rights)
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
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
Modifies the hosts file
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
PE file contains section with special chars
PE file has nameless sections
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 (e.g. based on Emerging Threat rules)
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 access)
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected AntiVM3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 377487 Sample: Wrong_Invoice.exe Startdate: 29/03/2021 Architecture: WINDOWS Score: 100 48 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->48 50 Found malware configuration 2->50 52 Multi AV Scanner detection for dropped file 2->52 54 11 other signatures 2->54 7 Wrong_Invoice.exe 6 2->7         started        11 ppptOL.exe 2 2->11         started        13 ppptOL.exe 1 2->13         started        process3 file4 32 C:\Users\user\AppData\...\TicTztyHxzttD.exe, PE32 7->32 dropped 34 C:\Users\user\AppData\Local\Temp\tmp7FF.tmp, XML 7->34 dropped 36 C:\Users\user\...\Wrong_Invoice.exe.log, ASCII 7->36 dropped 56 Detected unpacking (changes PE section rights) 7->56 58 Uses schtasks.exe or at.exe to add and modify task schedules 7->58 60 Writes to foreign memory regions 7->60 62 2 other signatures 7->62 15 RegSvcs.exe 2 8 7->15         started        20 schtasks.exe 1 7->20         started        22 conhost.exe 11->22         started        24 conhost.exe 13->24         started        signatures5 process6 dnsIp7 38 webmail.mdist.us 192.185.226.148, 49717, 49718, 587 UNIFIEDLAYER-AS-1US United States 15->38 28 C:\Users\user\AppData\Roaming\...\ppptOL.exe, PE32 15->28 dropped 30 C:\Windows\System32\drivers\etc\hosts, ASCII 15->30 dropped 40 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 15->40 42 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 15->42 44 Tries to steal Mail credentials (via file access) 15->44 46 5 other signatures 15->46 26 conhost.exe 20->26         started        file8 signatures9 process10
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/99d6404e4262cbe32a216ae2493bb98d809345d69b8195ae7266b0114d16a587/
Threat name:
Win32.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-03-10 14:28:04 UTC
AV detection:
23 of 28 (82.14%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=thleatscmlf6gkrbnlreso5zrwajgrowtoazlltsm2ybctiwuwdq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
01cfb84c887037331adb067cbcc4ef7e34b4c9f3aa8670ddad52d32266feca37
AgentTesla
07c1066fd37658b1d3c9faa6f43f3e467c6bcdd341cec916f9a0c6e993d5d74a
AgentTesla
086678dd529edfefa648310df4fe02c88b97b3c3dfdca8b779511186b8ae543b
AgentTesla
2d31d4b70c99a9be8ea02ebeedc419827e44569d3bd835bdfe29b46b89c99a1f
AgentTesla
4c5cbccc8138f4f003b85294224f0459daf2182b6211be55b62abf62919d4b05
AgentTesla
6661acf762423f3241fa87250e9e8e82b270ed2c8ee891f5ca64e62c0140e6b8
AgentTesla
74c2f8176fadf84bb04083901d52033b0975245676b45cd8607d80bebc91e570
AgentTesla
7ec630a6c0d47b6766e73653ab9084846bc2f37bc136a929aebcb59dc4f06dc4
AgentTesla
b045b7b993b005e1930ca50a9eb65df8b62ca29d1dfdbbb28ca6621384172908
AgentTesla
c21d2f1d2c5dad844ee2c789b2a424f0808e9eaf4edbf4319dca34531aacbe2c
AgentTesla
+ 3'539 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/210329-f3gqx1qdtn/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Drops file in Drivers directory
AgentTesla Payload
AgentTesla
Unpacked files
SH256 hash:
b23d82276a18a140fdd86ef49892d917c35c4321e6bb23f34ff8faf6aa1d49ca
MD5 hash:
e480c2e2d8836f048907aadfa96c301c
SHA1 hash:
fb5cc10c99e16aa5b9b47db1ce7230dc30e210bc
Link:
https://www.unpac.me/results/a318b552-2c20-4a2c-8150-5177713ee032/
SH256 hash:
1510861928b533e1529c1ffe7c6d57d9e5e928830d0afb28fd0fa730ff83fbdc
MD5 hash:
8f85df46a482b5b068ae7667bf1a33d6
SHA1 hash:
a210d369311aa4d709dc962c634174738576907e
Link:
https://www.unpac.me/results/a318b552-2c20-4a2c-8150-5177713ee032/
SH256 hash:
d8688fe2c4b1e52e6a8310dffd1e5037e6beacd7c6dd1443e4a87cf1ce8babdc
MD5 hash:
33b7b2101f75c2aa057d31d4f3a61bea
SHA1 hash:
2fc1ccef5f5eb20c6c1f3ae7378845444a5994ec
Link:
https://www.unpac.me/results/a318b552-2c20-4a2c-8150-5177713ee032/
SH256 hash:
99d6404e4262cbe32a216ae2493bb98d809345d69b8195ae7266b0114d16a587
MD5 hash:
c00c56cc3d27cd9eb2676e170fe20c62
SHA1 hash:
1fe7286e08fcf993b3af10744f9b48f474554c3d
Link:
https://www.unpac.me/results/a318b552-2c20-4a2c-8150-5177713ee032/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
AgentTesla
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/99d6404e4262cbe32a216ae2493bb98d809345d69b8195ae7266b0114d16a587

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:ach_AgentTesla_20200929
Create hunting rule
Author:abuse.ch
Description:Detects AgentTesla PE
Rule name:MALWARE_Win_AgentTeslaV3
Create hunting rule
Author:ditekSHen
Description:AgentTeslaV3 infostealer payload
Rule name:win_agent_tesla_v1
Create hunting rule
Author:Johannes Bader @viql
Description:detects Agent Tesla

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

AgentTesla

7z 86c0efffb98c554dfefd3b5b53759c9205a5ce5612ca89ee822b801882ee9f38

AgentTesla

Executable exe 99d6404e4262cbe32a216ae2493bb98d809345d69b8195ae7266b0114d16a587

(this sample)

  
Dropped by
MD5 21ab2ac2ad94d3efb18cf32f74245361
  
Dropped by
SHA256 86c0efffb98c554dfefd3b5b53759c9205a5ce5612ca89ee822b801882ee9f38
  
Dropped by
AgentTesla
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/127683/

Comments