MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 650baaf8397e4aa4925a88c44c5ab63f5b61b4c03607eb511b3bd6dc6d98f652. 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: 12


Intelligence 12 IOCs YARA 6 File information Comments

SHA256 hash: 650baaf8397e4aa4925a88c44c5ab63f5b61b4c03607eb511b3bd6dc6d98f652
SHA3-384 hash: 56a777368ab3d9c0663fbc2bf8a9f15654047662e4091604e63373c54d78928aa02372c56f7ef9cadf8be0cf882262c1
SHA1 hash: 14a2717f0ad7a92e68a5746bf819baf9ea0ae2c7
MD5 hash: 1488e7934a3a084bb352f2c121c0b4d2
humanhash: muppet-bulldog-sierra-lithium
File name:hussanzx.exe
Download: download sample
Signature Formbook
File size:1'903'616 bytes
First seen:2022-04-18 19:02:46 UTC
Last seen:2022-04-20 10:20:55 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 24576:dOfTAo86/52GCFgsZYSQILJ/FDV1rJhQEfFT:ofL/8GcgxK7lm2
Threatray 14'993 similar samples on MalwareBazaar
TLSH T1F595186EA6464795DD00C7F4D9F36BA1A658F3BBC9056307E396323CE42B2F42642783
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon 69d4b26868b2cc71 (23 x Formbook, 6 x SnakeKeylogger, 2 x AgentTesla)
Reporter James_inthe_box
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
4
# of downloads :
313
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
http://2.58.149.41/hussanzx.exe
Verdict:
Malicious activity
Analysis date:
2022-04-19 08:39:54 UTC
Tags:
loader

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

Behaviour
Creating a window
Сreating synchronization primitives
Running batch commands
Creating a process with a hidden window
Launching a process
Sending a custom TCP request
Creating a file in the %AppData% subdirectories
Unauthorized injection to a recently created process
Creating a file
Searching for synchronization primitives
Launching cmd.exe command interpreter
Reading critical registry keys
Setting browser functions hooks
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
control.exe obfuscated packed
Result
Verdict:
UNKNOWN
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:
FormBook
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Creates an undocumented autostart registry key
Found malware configuration
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Modifies the prolog of user mode functions (user mode inline hooks)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd delete
Tries to detect virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 610894 Sample: hussanzx.exe Startdate: 18/04/2022 Architecture: WINDOWS Score: 100 38 Multi AV Scanner detection for domain / URL 2->38 40 Found malware configuration 2->40 42 Malicious sample detected (through community Yara rule) 2->42 44 10 other signatures 2->44 10 hussanzx.exe 7 2->10         started        process3 file4 32 C:\Users\user\AppData\Roaming\...\huss.exe, PE32 10->32 dropped 34 C:\Users\user\...\huss.exe:Zone.Identifier, ASCII 10->34 dropped 36 C:\Users\user\AppData\...\hussanzx.exe.log, ASCII 10->36 dropped 52 Creates an undocumented autostart registry key 10->52 54 Tries to detect virtualization through RDTSC time measurements 10->54 56 Injects a PE file into a foreign processes 10->56 14 hussanzx.exe 10->14         started        17 cmd.exe 1 10->17         started        signatures5 process6 signatures7 58 Modifies the context of a thread in another process (thread injection) 14->58 60 Maps a DLL or memory area into another process 14->60 62 Sample uses process hollowing technique 14->62 64 Queues an APC in another process (thread injection) 14->64 19 explorer.exe 14->19 injected 66 Self deletion via cmd delete 17->66 68 Tries to detect virtualization through RDTSC time measurements 17->68 21 conhost.exe 17->21         started        23 timeout.exe 1 17->23         started        process8 process9 25 cmd.exe 19->25         started        signatures10 46 Self deletion via cmd delete 25->46 48 Modifies the context of a thread in another process (thread injection) 25->48 50 Maps a DLL or memory area into another process 25->50 28 cmd.exe 1 25->28         started        process11 process12 30 conhost.exe 28->30         started       
Threat name:
ByteCode-MSIL.Spyware.Noon
Status:
Malicious
First seen:
2022-04-18 19:00:21 UTC
File Type:
PE (.Net Exe)
Extracted files:
20
AV detection:
18 of 25 (72.00%)
Threat level:
  2/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:w83h rat spyware stealer suricata trojan
Behaviour
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Deletes itself
Formbook Payload
Formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
650baaf8397e4aa4925a88c44c5ab63f5b61b4c03607eb511b3bd6dc6d98f652
MD5 hash:
1488e7934a3a084bb352f2c121c0b4d2
SHA1 hash:
14a2717f0ad7a92e68a5746bf819baf9ea0ae2c7
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:malware_Formbook_strings
Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
Rule name:Typical_Malware_String_Transforms
Author:Florian Roth
Description:Detects typical strings in a reversed or otherwise modified form
Reference:Internal Research
Rule name:Typical_Malware_String_Transforms_RID3473
Author:Florian Roth
Description:Detects typical strings in a reversed or otherwise modified form
Reference:Internal Research
Rule name:win_formbook_auto
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.formbook.

File information


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

Comments