MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5f3ccb49e66ef3bf10ec0a226360f55238063c739154cb131407ff02d0706e67. 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: 13


Intelligence 13 IOCs YARA 4 File information Comments

SHA256 hash: 5f3ccb49e66ef3bf10ec0a226360f55238063c739154cb131407ff02d0706e67
SHA3-384 hash: cdec9a3bd2d1752d4b4ba041a4cc03ad8ce7dfed3e4fe1de753e468bbebaa3b3831d507c7fb0ef2e4f1b9bcfb8d6680f
SHA1 hash: 394acda733cabf439f0025b74979e1398503cf85
MD5 hash: 34e4bbeb242765204c3eee629c77a423
humanhash: charlie-kentucky-juliet-five
File name:Novi poredak.exe
Download: download sample
Signature Formbook
File size:653'312 bytes
First seen:2021-10-01 09:30:52 UTC
Last seen:2021-10-01 10:31:29 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 12288:6oxAbQ+X8+UiDLbRHahPa0SyH6ovwbvh5HTgIcy0dt5SO:lAbQ+X8+UiDLbRHahPa6XwbbeDb
Threatray 9'856 similar samples on MalwareBazaar
TLSH T1BAD47B54E22FE7A9FD1923F0263CFCD015F82A69147CFA27BD9660E23489E3151B0697
Reporter adrian__luca
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
2
# of downloads :
144
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Novi poredak.exe
Verdict:
Malicious activity
Analysis date:
2021-10-01 06:28:24 UTC
Tags:
trojan formbook stealer

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
Launching a process
Creating a file in the %temp% directory
Delayed writing of the file
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
.NET source code contains very large strings
Adds a directory exclusion to Windows Defender
C2 URLs / IPs found in malware configuration
Found malware configuration
Injects a PE file into a foreign processes
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
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
Sigma detected: Powershell Defender Exclusion
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 495048 Sample: Novi poredak.exe Startdate: 01/10/2021 Architecture: WINDOWS Score: 100 41 www.jiankong1234.com 2->41 45 Multi AV Scanner detection for domain / URL 2->45 47 Found malware configuration 2->47 49 Malicious sample detected (through community Yara rule) 2->49 51 13 other signatures 2->51 10 Novi poredak.exe 7 2->10         started        signatures3 process4 file5 37 C:\Users\user\AppData\...\qEEXaGItlEqXu.exe, PE32 10->37 dropped 39 C:\Users\user\AppData\Local\...\tmp6EAE.tmp, XML 10->39 dropped 59 Writes to foreign memory regions 10->59 61 Adds a directory exclusion to Windows Defender 10->61 63 Injects a PE file into a foreign processes 10->63 14 RegSvcs.exe 10->14         started        17 RegSvcs.exe 10->17         started        19 powershell.exe 25 10->19         started        21 2 other processes 10->21 signatures6 process7 signatures8 65 Modifies the context of a thread in another process (thread injection) 14->65 67 Maps a DLL or memory area into another process 14->67 69 Sample uses process hollowing technique 14->69 71 Queues an APC in another process (thread injection) 14->71 23 msiexec.exe 14->23         started        26 explorer.exe 14->26 injected 73 Tries to detect virtualization through RDTSC time measurements 17->73 29 conhost.exe 19->29         started        31 conhost.exe 21->31         started        process9 dnsIp10 53 Modifies the context of a thread in another process (thread injection) 23->53 55 Maps a DLL or memory area into another process 23->55 33 cmd.exe 1 23->33         started        43 www.accom2012.com 172.67.215.109, 49886, 80 CLOUDFLARENETUS United States 26->43 57 System process connects to network (likely due to code injection or exploit) 26->57 signatures11 process12 process13 35 conhost.exe 33->35         started       
Threat name:
ByteCode-MSIL.Spyware.Noon
Status:
Malicious
First seen:
2021-10-01 06:45:29 UTC
AV detection:
12 of 45 (26.67%)
Threat level:
  2/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:gefn evasion rat spyware stealer suricata trojan
Behaviour
Gathers network information
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
Creates scheduled task(s)
Enumerates physical storage devices
Suspicious use of SetThreadContext
Maps connected drives based on registry
Checks BIOS information in registry
Looks for VMWare Tools registry key
Formbook Payload
Looks for VirtualBox Guest Additions in registry
Formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
Malware Config
C2 Extraction:
http://www.comercialocaranza.com/gefn/
Unpacked files
SH256 hash:
8284626bb324db0a4b2516f9b5dc1da92a26e6315f7a2fe771079a99021125fe
MD5 hash:
eaddb22aa4c81beb01cd9f45fb47809c
SHA1 hash:
dca3c2c7c76f332ad5cf31ab7be227de4e0aa6c8
SH256 hash:
a22fb71ff3fc036f0ea0307bfac8dc0ea713d595cfa23452ee03dc33805b264d
MD5 hash:
0d2c39ee1e78754e9ec76aa1927b7cfd
SHA1 hash:
c34ca419f0c56c55493357f88d3ed616585c2715
SH256 hash:
b4508f051f6da5a8a73b69ad3d2ec88ff496ac392d9f152e321c76d9766bc124
MD5 hash:
79d5be02f2bca9b38b68430ba96862b6
SHA1 hash:
437534616622a4b5dc2dd6578a603dead57b10bb
SH256 hash:
5f3ccb49e66ef3bf10ec0a226360f55238063c739154cb131407ff02d0706e67
MD5 hash:
34e4bbeb242765204c3eee629c77a423
SHA1 hash:
394acda733cabf439f0025b74979e1398503cf85
Malware family:
FormBook
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:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
Rule name:pe_imphash
Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
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

Formbook

Executable exe 5f3ccb49e66ef3bf10ec0a226360f55238063c739154cb131407ff02d0706e67

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments