MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b11f12b8f638596e52dc43332ae8ead3d29d47dcb90ba2fb13e7e08811b895c8. 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 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b11f12b8f638596e52dc43332ae8ead3d29d47dcb90ba2fb13e7e08811b895c8
SHA3-384 hash: f0e0f1612d938f853643ffbc680d3c89a15c437d74af3e3945662837ee72fe4fc17335fa341c3c76921311a92e7031b0
SHA1 hash: fe03a9798d36770f1500b6f35b9a33eb6d391189
MD5 hash: 2c42e7848e2520f517c0eb3cff9a17fb
humanhash: yellow-angel-enemy-item
File name:INVOICE.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:585'728 bytes
First seen:2021-12-02 06:42:48 UTC
Last seen:2021-12-02 13:31:10 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'609 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:4ndHmAzz1punmnPMgM1/OLnmv2tYLRwPln:Kzn1GGoOLnmOtuyPl
Threatray 13'193 similar samples on MalwareBazaar
TLSH T13DC4E03A23E58F16C23E7EB98503414C9BF2E627D313D78BEDE002ED149AB544761B96
Reporter GovCERT_CH
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
3
# of downloads :
120
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
INVOICE.exe
Verdict:
Malicious activity
Analysis date:
2021-12-02 06:47:24 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/9769133e-3ec6-493b-bd22-dd8c4c7ad5e0

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
AgentTeslaV3
Create hunting rule
Link:
https://www.capesandbox.com/analysis/210547/
Detection(s):
SecuriteInfo.com.Variant.MSILHeracles.31763.17301.6262.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
DNS request
Сreating synchronization primitives
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Unauthorized injection to a recently created process
Creating a file
Using the Windows Management Instrumentation requests
Enabling autorun by creating a file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/61a86af7707a51cfe28ad3c2/reports/20aa6adb-734e-4ed1-8f15-c55442bd787a/overview
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/7535d57f-bce5-49cf-9ab8-2f1ccc770579
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/899909
Signature
.NET source code contains very large array initializations
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
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: Suspicius Add Task From User AppData Temp
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 / registry access)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AgentTesla
Yara detected AntiVM3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 532387 Sample: INVOICE.exe Startdate: 02/12/2021 Architecture: WINDOWS Score: 100 47 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->47 49 Found malware configuration 2->49 51 Multi AV Scanner detection for dropped file 2->51 53 9 other signatures 2->53 7 INVOICE.exe 6 2->7         started        11 tKZVPq.exe 4 2->11         started        14 tKZVPq.exe 3 2->14         started        process3 dnsIp4 37 C:\Users\user\AppData\...\qzDZhUTmRB.exe, PE32 7->37 dropped 39 C:\Users\user\AppData\Local\...\tmpF8E0.tmp, XML 7->39 dropped 41 C:\Users\user\AppData\...\INVOICE.exe.log, ASCII 7->41 dropped 63 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->63 65 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 7->65 67 Uses schtasks.exe or at.exe to add and modify task schedules 7->67 16 INVOICE.exe 2 5 7->16         started        21 schtasks.exe 1 7->21         started        45 192.168.2.1 unknown unknown 11->45 69 Multi AV Scanner detection for dropped file 11->69 71 Machine Learning detection for dropped file 11->71 73 Injects a PE file into a foreign processes 11->73 23 schtasks.exe 1 11->23         started        25 tKZVPq.exe 2 11->25         started        file5 signatures6 process7 dnsIp8 43 mail.focuzpartsmart.com 162.214.80.6, 49843, 587 UNIFIEDLAYER-AS-1US United States 16->43 31 C:\Users\user\AppData\Roaming\...\tKZVPq.exe, PE32 16->31 dropped 33 C:\Windows\System32\drivers\etc\hosts, ASCII 16->33 dropped 35 C:\Users\user\...\tKZVPq.exe:Zone.Identifier, ASCII 16->35 dropped 55 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 16->55 57 Tries to steal Mail credentials (via file / registry access) 16->57 59 Tries to harvest and steal ftp login credentials 16->59 61 3 other signatures 16->61 27 conhost.exe 21->27         started        29 conhost.exe 23->29         started        file9 signatures10 process11
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b11f12b8f638596e52dc43332ae8ead3d29d47dcb90ba2fb13e7e08811b895c8/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-12-02 05:35:40 UTC
File Type:
PE (.Net Exe)
Extracted files:
26
AV detection:
22 of 28 (78.57%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=weprfohwhbmw4uw4imzsv2hk2pjj2r64xef2f6yt47qiqenysxea._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
05d2cc58039f7d736dcaea7fc43415966758d7befeabf4be9d15ec4f0bb4431e
AgentTesla
a92eaba220b883104d7d882adc74817f48aa300c0bf581d02224f344dc1f5733
AgentTesla
ab6789e19108843f78d420655f3ae2f22e8b95bc383c72784c99b98098ef0522
AgentTesla
b72ebb6d27797219209ba8fdfbbe32447e34919e080af0a0fa31117921ad59b0
AgentTesla
+ 13'183 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/211202-hgxm6acchn/
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
Adds Run key to start application
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Drops file in Drivers directory
AgentTesla Payload
AgentTesla
Unpacked files
SH256 hash:
6f127aa0132ff16769e564b4c6adfd6fa666c3922f16e982586b73b26a8fad19
MD5 hash:
0a7413de8059817f672fa73fd8d3b58c
SHA1 hash:
d992948c74ac638423f293ed9a27734c74ac35f6
Link:
https://www.unpac.me/results/aec935ca-6226-4a70-bf20-9ce725429aec/
SH256 hash:
8e548ed1734b68487bab8b8ed9bba1e038d212064339f776845da0df03f57a21
MD5 hash:
2d6245f9f6d278d1a3004ed205cd09f7
SHA1 hash:
c70f58faa72eac6ca8aaf4041c0dc80a4fbc2250
Link:
https://www.unpac.me/results/aec935ca-6226-4a70-bf20-9ce725429aec/
SH256 hash:
79823e47436e129def4fba8ee225347a05b7bb27477fb1cc8be6dc9e9ce75696
MD5 hash:
39f524c1ab0eb76dfd79b2852e5e8c39
SHA1 hash:
428018e1701006744e34480b0029982a76d8a57d
Link:
https://www.unpac.me/results/aec935ca-6226-4a70-bf20-9ce725429aec/
SH256 hash:
b11f12b8f638596e52dc43332ae8ead3d29d47dcb90ba2fb13e7e08811b895c8
MD5 hash:
2c42e7848e2520f517c0eb3cff9a17fb
SHA1 hash:
fe03a9798d36770f1500b6f35b9a33eb6d391189
Link:
https://www.unpac.me/results/aec935ca-6226-4a70-bf20-9ce725429aec/
Malware family:
Agent Tesla v3
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/b11f12b8f638/report/overview.html
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/b11f12b8f638596e52dc43332ae8ead3d29d47dcb90ba2fb13e7e08811b895c8

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_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
Rule name:pe_imphash
Create hunting rule
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 b11f12b8f638596e52dc43332ae8ead3d29d47dcb90ba2fb13e7e08811b895c8

(this sample)

  
Dropped by
agenttesla
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/210547/

Comments