MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ffd4eb84d30487daae13452db290c8a31332a93e818fa88cdc2f8041fd035c57. 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: 11


Intelligence 11 IOCs YARA File information Comments

SHA256 hash: ffd4eb84d30487daae13452db290c8a31332a93e818fa88cdc2f8041fd035c57
SHA3-384 hash: a63476c080b4c6a10339c1d667ec93e82d873ff102f85668a1194f92d3a1d36d5b981c36ebb3767041d49d35b3d900c5
SHA1 hash: 0761493f617982c330fafa68ed8bbb5c312a2d82
MD5 hash: 19c10a7d818b70b9947e6851849fd2df
humanhash: solar-nineteen-nineteen-sink
File name:ffd4eb84d30487daae13452db290c8a31332a93e818fa88cdc2f8041fd035c57
Download: download sample
Signature Formbook
File size:18'216 bytes
First seen:2022-11-09 12:34:17 UTC
Last seen:2022-11-09 12:38:22 UTC
File type:Executable exe
MIME type:application/x-dosexec
ssdeep 192:xNIUPBsnnBZHJUmJoeYG8R+ZscF8Bd1LQJEul4uhUmJoeYG8R+ZscF8Bd1L/Jzg2:xxpIhJoSXZsHLQJEruhoSXZsHL/Jmhq
TLSH T12782D869C7D41C42EDA79E3130E4C616BF31B681AA61C5EBA159C0248F85B9239FC2BD
TrID 63.5% (.EXE) Win64 Executable (generic) (10523/12/4)
12.2% (.EXE) OS/2 Executable (generic) (2029/13)
12.0% (.EXE) Generic Win/DOS Executable (2002/3)
12.0% (.EXE) DOS Executable Generic (2000/1)
Reporter adrian__luca
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
2
# of downloads :
213
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
ffd4eb84d30487daae13452db290c8a31332a93e818fa88cdc2f8041fd035c57
Verdict:
No threats detected
Analysis date:
2022-11-09 12:23:40 UTC
Tags:
n/a

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
Сreating synchronization primitives
DNS request
Sending an HTTP GET request
Creating a process with a hidden window
Creating a window
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
overlay packed tiny
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:
AsyncRAT, AveMaria, Njrat, PhoenixRAT, S
Detection:
malicious
Classification:
troj.adwa.spyw.expl.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
.NET source code contains very large strings
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Changes the view of files in windows explorer (hidden files and folders)
Contains functionality to log keystrokes (.Net Source)
Creates autostart registry keys with suspicious names
Detected VMProtect packer
Drops executables to the windows directory (C:\Windows) and starts them
Drops PE files to the startup folder
Drops script or batch files to the startup folder
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
Found many strings related to Crypto-Wallets (likely being stolen)
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
May check the online IP address of the machine
Modifies the windows firewall
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queries sensitive Plug and Play Device Information (via WMI, Win32_PnPEntity, often done to detect virtual machines)
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sigma detected: Capture Wi-Fi password
Sigma detected: Drops script at startup location
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal WLAN passwords
Uses netsh to modify the Windows network and firewall settings
Uses the Telegram API (likely for C&C communication)
Yara detected AsyncRAT
Yara detected AveMaria stealer
Yara detected Generic Downloader
Yara detected Njrat
Yara detected PhoenixRAT
Yara detected StormKitty Stealer
Yara detected Telegram RAT
Yara detected Telegram Recon
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 741947 Sample: EU3cMBO3dC.exe Startdate: 09/11/2022 Architecture: WINDOWS Score: 100 115 make-catherine.at.ply.gg 2->115 117 218.147.1.0.in-addr.arpa 2->117 119 icanhazip.com 2->119 139 Malicious sample detected (through community Yara rule) 2->139 141 Antivirus detection for URL or domain 2->141 143 Sigma detected: Capture Wi-Fi password 2->143 145 26 other signatures 2->145 13 EU3cMBO3dC.exe 14 5 2->13         started        17 Flood http.exe 2->17         started        signatures3 process4 dnsIp5 123 speedxstreeamz.herokuapp.com 54.243.238.66, 49713, 80 AMAZON-AESUS United States 13->123 111 C:\Users\user\AppData\Local\Temp\RegAsm.exe, PE32 13->111 dropped 113 C:\Users\user\AppData\...U3cMBO3dC.exe.log, CSV 13->113 dropped 19 RegAsm.exe 4 11 13->19         started        23 1.exe 17->23         started        25 http.exe 17->25         started        file6 process7 file8 87 C:\Windows\SysWOW64\StormKittyBuild.exe, PE32+ 19->87 dropped 89 C:\Users\user\AppData\...\WorldWindClient.exe, PE32 19->89 dropped 91 C:\Users\user\AppData\...\Flood http.exe, PE32 19->91 dropped 147 Antivirus detection for dropped file 19->147 149 Multi AV Scanner detection for dropped file 19->149 151 Machine Learning detection for dropped file 19->151 153 4 other signatures 19->153 27 Flood http.exe 13 19->27         started        30 StormKittyBuild.exe 14 11 19->30         started        34 WorldWindClient.exe 15 112 19->34         started        36 cmd.exe 23->36         started        38 conhost.exe 23->38         started        40 2.exe 25->40         started        42 LOIC.exe 25->42         started        signatures9 process10 dnsIp11 95 C:\Users\user\AppData\Roaming\...\http.exe, PE32 27->95 dropped 97 C:\Users\user\AppData\Roaming\...\1.exe, PE32 27->97 dropped 44 http.exe 27->44         started        47 1.exe 27->47         started        125 ip-api.com 208.95.112.1, 49722, 80 TUT-ASUS United States 30->125 127 api.telegram.org 149.154.167.220, 443, 49726, 49730 TELEGRAMRU United Kingdom 30->127 129 raw.githubusercontent.com 185.199.108.133, 443, 49723, 49724 FASTLYUS Netherlands 30->129 99 C:\Windows\SysWOW64\DotNetZip.dll, PE32 30->99 dropped 101 C:\Windows\SysWOW64\AnonFileApi.dll, PE32 30->101 dropped 171 Multi AV Scanner detection for dropped file 30->171 173 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 30->173 175 May check the online IP address of the machine 30->175 131 218.147.1.0.in-addr.arpa 34->131 133 icanhazip.com 104.18.115.97, 49727, 80 CLOUDFLARENETUS United States 34->133 135 3 other IPs or domains 34->135 177 Tries to harvest and steal browser information (history, passwords, etc) 34->177 179 Tries to harvest and steal WLAN passwords 34->179 49 cmd.exe 34->49         started        52 cmd.exe 34->52         started        54 conhost.exe 36->54         started        file12 signatures13 process14 file15 103 C:\ProgramData\Synaptics\LOIC.exe, PE32 44->103 dropped 105 C:\ProgramData\Synaptics\2.exe, PE32 44->105 dropped 56 2.exe 44->56         started        60 LOIC.exe 44->60         started        107 C:\Users\user\AppData\Roaming\...\1.bat, DOS 47->107 dropped 62 cmd.exe 47->62         started        137 Tries to harvest and steal WLAN passwords 49->137 64 conhost.exe 49->64         started        66 chcp.com 49->66         started        68 netsh.exe 49->68         started        70 findstr.exe 49->70         started        72 conhost.exe 52->72         started        74 2 other processes 52->74 signatures16 process17 file18 93 C:\Users\user\AppData\Roaming\Synaptics.exe, PE32 56->93 dropped 155 Antivirus detection for dropped file 56->155 157 Multi AV Scanner detection for dropped file 56->157 159 Machine Learning detection for dropped file 56->159 76 Synaptics.exe 56->76         started        161 Tries to harvest and steal WLAN passwords 62->161 81 conhost.exe 62->81         started        signatures19 process20 dnsIp21 121 make-catherine.at.ply.gg 209.25.141.180, 58313 COGECO-PEER1CA Canada 76->121 109 C:\...\b4c63b54190652b309c82e2a2b6c90f6.exe, PE32 76->109 dropped 163 Multi AV Scanner detection for dropped file 76->163 165 Changes the view of files in windows explorer (hidden files and folders) 76->165 167 Creates autostart registry keys with suspicious names 76->167 169 3 other signatures 76->169 83 netsh.exe 76->83         started        file22 signatures23 process24 process25 85 conhost.exe 83->85         started       
Threat name:
ByteCode-MSIL.Backdoor.AsyncRAT
Status:
Malicious
First seen:
2022-11-09 12:35:07 UTC
File Type:
PE+ (.Net Exe)
Extracted files:
1
AV detection:
18 of 26 (69.23%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
Result
Malware family:
stormkitty
Score:
  10/10
Tags:
family:asyncrat family:stormkitty botnet:default collection evasion persistence rat spyware stealer vmprotect
Behaviour
Checks processor information in registry
Delays execution with timeout.exe
Kills process with taskkill
Modifies registry class
Modifies system certificate store
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
Accesses Microsoft Outlook profiles
Adds Run key to start application
Drops desktop.ini file(s)
Legitimate hosting services abused for malware hosting/C2
Looks up external IP address via web service
Looks up geolocation information via web service
Checks computer location settings
Drops startup file
Loads dropped DLL
Reads user/profile data of web browsers
Downloads MZ/PE file
Executes dropped EXE
Modifies Windows Firewall
VMProtect packed file
Async RAT payload
AsyncRat
StormKitty
StormKitty payload
Malware Config
C2 Extraction:
127.0.0.1:6606
127.0.0.1:7707
127.0.0.1:8808
https://api.telegram.org/bot5733301341:AAF6S_qPXNWS0WW5VbV6kBv7HBzZIREbZ_g/sendMessage?chat_id=1071532135
Unpacked files
SH256 hash:
ffd4eb84d30487daae13452db290c8a31332a93e818fa88cdc2f8041fd035c57
MD5 hash:
19c10a7d818b70b9947e6851849fd2df
SHA1 hash:
0761493f617982c330fafa68ed8bbb5c312a2d82
Please note that we are no longer able to provide a coverage score for Virus Total.

File information


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

Comments