MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 0d55d9509730eade8dac7811d508b7ab0df6c018e2867b3af69c7c309f9006ac. 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



Formbook


Vendor detections: 16


Intelligence 16 IOCs YARA 16 File information Comments

SHA256 hash: 0d55d9509730eade8dac7811d508b7ab0df6c018e2867b3af69c7c309f9006ac
SHA3-384 hash: 9e7e14950916d062b671703317dd8f27e449110bb4ff825439fbc47190b165479d55a09c49a31756b9affd2ed598ce23
SHA1 hash: 497a4463db2b8db7279dafa3ddb2496e01dde04f
MD5 hash: 65435ea324a28dcd1b314b1b10c02951
humanhash: fanta-michigan-apart-march
File name:17144562651d9605f0dfc717da8d65b22675530d8a3ed3c7160734981b8f87e9c4eade0489201.dat-decoded
Download: download sample
Signature Formbook
File size:245'760 bytes
First seen:2024-04-30 05:51:07 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'748 x AgentTesla, 19'643 x Formbook, 12'245 x SnakeKeylogger)
ssdeep 3072:6PMVHbnDyj0OC928iyv2Kjhp+2c2FjYrQCBa4XlYflXXEz5RgM7dE4l01:6PMVHbnDygOC92aCQ46fpXEIM7e
Threatray 4'084 similar samples on MalwareBazaar
TLSH T155340D037E88EB15E5A93E3782EF2C2453B2B4C71633D20F6F49AB6518512426D7E72D
TrID 60.4% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.8% (.SCR) Windows screen saver (13097/50/3)
8.7% (.EXE) Win64 Executable (generic) (10523/12/4)
5.4% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.1% (.EXE) Win16 NE executable (generic) (5038/12/1)
Reporter abuse_ch
Tags:base64-decoded exe FormBook


Avatar
abuse_ch
Malware dropped as base64 encoded payload

Intelligence


File Origin
# of uploads :
1
# of downloads :
354
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
agenttesla
ID:
1
File name:
0d55d9509730eade8dac7811d508b7ab0df6c018e2867b3af69c7c309f9006ac.exe
Verdict:
Malicious activity
Analysis date:
2024-04-30 06:27:25 UTC
Tags:
evasion telegram exfiltration stealer agenttesla

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Using the Windows Management Instrumentation requests
Сreating synchronization primitives
DNS request
Connection attempt
Sending an HTTP GET request
Creating a file in the %AppData% subdirectories
Reading critical registry keys
Sending a custom TCP request
Creating a window
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Stealing user critical data
Verdict:
Malicious
Threat level:
  10/10
Confidence:
89%
Tags:
anti-vm evasive fingerprint hacktool hook keylogger lolbin remote stealer
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Check if machine is in data center or colocation facility
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
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)
Snort IDS alert for network traffic
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 the Telegram API (likely for C&C communication)
Yara detected AgentTesla
Yara detected Generic Downloader
Yara detected Telegram RAT
Yara detected Telegram Recon
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1433872 Sample: 17144562651d9605f0dfc717da8... Startdate: 30/04/2024 Architecture: WINDOWS Score: 100 19 api.telegram.org 2->19 21 ip-api.com 2->21 27 Snort IDS alert for network traffic 2->27 29 Found malware configuration 2->29 31 Malicious sample detected (through community Yara rule) 2->31 35 9 other signatures 2->35 6 17144562651d9605f0dfc717da8d65b22675530d8a3ed3c7160734981b8f87e9c4eade0489201.dat-decoded.exe 16 5 2->6         started        11 huYFv.exe 14 2 2->11         started        13 huYFv.exe 2 2->13         started        signatures3 33 Uses the Telegram API (likely for C&C communication) 19->33 process4 dnsIp5 23 ip-api.com 208.95.112.1, 49705, 49707, 49710 TUT-ASUS United States 6->23 25 api.telegram.org 149.154.167.220, 443, 49706, 49708 TELEGRAMRU United Kingdom 6->25 15 C:\Users\user\AppData\Roaming\...\huYFv.exe, PE32 6->15 dropped 17 C:\Users\user\...\huYFv.exe:Zone.Identifier, ASCII 6->17 dropped 37 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 6->37 39 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 6->39 41 Tries to steal Mail credentials (via file / registry access) 6->41 51 2 other signatures 6->51 43 Multi AV Scanner detection for dropped file 11->43 45 Machine Learning detection for dropped file 11->45 47 Tries to harvest and steal ftp login credentials 13->47 49 Tries to harvest and steal browser information (history, passwords, etc) 13->49 file6 signatures7
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2024-04-28 13:20:38 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
21 of 24 (87.50%)
Threat level:
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
family:agenttesla keylogger persistence spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Adds Run key to start application
Looks up external IP address via web service
Reads WinSCP keys stored on the system
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
AgentTesla
Malware Config
C2 Extraction:
https://api.telegram.org/bot7109324415:AAEtV_HPY0H5mFN38xCDvDx9wl-kKb9q3qg/
Unpacked files
SH256 hash:
0d55d9509730eade8dac7811d508b7ab0df6c018e2867b3af69c7c309f9006ac
MD5 hash:
65435ea324a28dcd1b314b1b10c02951
SHA1 hash:
497a4463db2b8db7279dafa3ddb2496e01dde04f
Detections:
win_agent_tesla_g2 INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients Agenttesla_type2 INDICATOR_SUSPICIOUS_Binary_References_Browsers INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL INDICATOR_EXE_Packed_GEN01 INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
Malware family:
AgentTesla
Verdict:
Malicious
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:AgentTeslaV3
Author:ditekshen
Description:AgentTeslaV3 infostealer payload
Rule name:AgentTeslaV5
Author:ClaudioWayne
Description:AgentTeslaV5 infostealer payload
Rule name:DebuggerCheck__RemoteAPI
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:INDICATOR_EXE_Packed_GEN01
Author:ditekSHen
Description:Detect packed .NET executables. Mostly AgentTeslaV4.
Rule name:INDICATOR_SUSPICIOUS_Binary_References_Browsers
Author:ditekSHen
Description:Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
Author:ditekSHen
Description:Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
Author:ditekSHen
Description:Detects executables referencing many email and collaboration clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
Author:ditekSHen
Description:Detects executables referencing many file transfer clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
Author:ditekSHen
Description:Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion
Rule name:INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
Author:ditekSHen
Description:Detects executables referencing Windows vault credential objects. Observed in infostealers
Rule name:malware_Agenttesla_type2
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:Multifamily_RAT_Detection
Author:Lucas Acha (http://www.lukeacha.com)
Description:Generic Detection for multiple RAT families, PUPs, Packers and suspicious executables
Rule name:NETexecutableMicrosoft
Author:malware-lu
Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
Rule name:Windows_Trojan_AgentTesla_ebf431a8
Author:Elastic Security
Reference:https://www.elastic.co/security-labs/attack-chain-leads-to-xworm-and-agenttesla

File information


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

1d9605f0dfc717da8d65b22675530d8a3ed3c7160734981b8f87e9c4eade0489

Formbook

Executable exe 0d55d9509730eade8dac7811d508b7ab0df6c018e2867b3af69c7c309f9006ac

(this sample)

  
Dropped by
SHA256 1d9605f0dfc717da8d65b22675530d8a3ed3c7160734981b8f87e9c4eade0489
  
Dropped by
MD5 8af99cad66453649b06d6c90552c8b13
  
Delivery method
Distributed via web download

BLint


The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high

Comments