MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 30d3cf43f91eea8df889ee14337ca8067bc68521ff63184c679aac80b321bb75. 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: 10


Intelligence 10 IOCs YARA File information Comments

SHA256 hash: 30d3cf43f91eea8df889ee14337ca8067bc68521ff63184c679aac80b321bb75
SHA3-384 hash: e26e2096ba0ddad54eb692aa2b481c77e822946335f45b8cf643fb8dbf1f2a1e58260679383dfdefe7765291a251d7d2
SHA1 hash: dc7b021e39765c8959bb64957092122c11cdde0a
MD5 hash: 5932bc473a03c2c6152c22df035ecbe0
humanhash: violet-jig-speaker-mississippi
File name:5IYB3BCNQjj7wzj.exe
Download: download sample
Signature FormBook
File size:543'232 bytes
First seen:2020-08-17 06:10:01 UTC
Last seen:2020-08-17 07:00:21 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:ZzNjHxry2jHATD5vr0E1pwKhGU4rL8YTsJHizjXr5hYrE4+qaX:peFnvA4QQCzjXr5hYA9B
Threatray 2'249 similar samples on MalwareBazaar
TLSH 2FC41263F640C610C67E1377894E124007B8BDCA7961F72EBCED72A95A723D18652EC7
Reporter abuse_ch
Tags:exe FormBook geo TUR


Avatar
abuse_ch
Malspam distributing FormBook:

HELO: alnassar.com.sa
Sending IP: 162.244.93.110
From: dersan <info@dersan.com.tr>
Reply-To: info@dersan.com.tr
Subject: Lütfen referansınız için yeni siparişimizin ekli kopyasını bulun.
Attachment: order08172.zip (contains "5IYB3BCNQjj7wzj.exe")

Intelligence


File Origin
# of uploads :
2
# of downloads :
73
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Unauthorized injection to a recently created process
Launching a process
Launching cmd.exe command interpreter
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Detected FormBook malware
Injects a PE file into a foreign processes
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)
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Suspicious Svchost Process
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
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file access)
Yara detected AntiVM_3
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 268547 Sample: 5IYB3BCNQjj7wzj.exe Startdate: 17/08/2020 Architecture: WINDOWS Score: 100 36 www.reputationhero.online 2->36 40 Malicious sample detected (through community Yara rule) 2->40 42 Yara detected AntiVM_3 2->42 44 Yara detected FormBook 2->44 46 5 other signatures 2->46 9 5IYB3BCNQjj7wzj.exe 3 2->9         started        signatures3 process4 file5 28 C:\Users\user\...\5IYB3BCNQjj7wzj.exe.log, ASCII 9->28 dropped 56 Tries to detect virtualization through RDTSC time measurements 9->56 58 Injects a PE file into a foreign processes 9->58 13 5IYB3BCNQjj7wzj.exe 9->13         started        signatures6 process7 signatures8 60 Modifies the context of a thread in another process (thread injection) 13->60 62 Maps a DLL or memory area into another process 13->62 64 Sample uses process hollowing technique 13->64 66 Queues an APC in another process (thread injection) 13->66 16 explorer.exe 13->16 injected process9 dnsIp10 30 www.regulars6.com 162.213.255.196, 49744, 49745, 49746 NAMECHEAP-NETUS United States 16->30 32 www.ladazapchasti.info 16->32 34 2 other IPs or domains 16->34 38 System process connects to network (likely due to code injection or exploit) 16->38 20 svchost.exe 17 16->20         started        signatures11 process12 file13 24 C:\Users\user\AppData\...\436logrv.ini, data 20->24 dropped 26 C:\Users\user\AppData\...\436logri.ini, data 20->26 dropped 48 Detected FormBook malware 20->48 50 Tries to steal Mail credentials (via file access) 20->50 52 Tries to harvest and steal browser information (history, passwords, etc) 20->52 54 3 other signatures 20->54 signatures14
Threat name:
ByteCode-MSIL.Backdoor.Remcos
Status:
Malicious
First seen:
2020-08-17 00:47:43 UTC
AV detection:
24 of 29 (82.76%)
Threat level:
  5/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
rat spyware trojan stealer family:formbook
Behaviour
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Reads user/profile data of web browsers
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.regulars6.com/w5fk/
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.

Malspam

FormBook

Executable exe 30d3cf43f91eea8df889ee14337ca8067bc68521ff63184c679aac80b321bb75

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments