MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5c6229c4315a736e487b6eae35dd91d600316c8f00ccbbf38f992c6edc9cffd0. 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: 14


Intelligence 14 IOCs YARA 2 File information Comments 1

SHA256 hash: 5c6229c4315a736e487b6eae35dd91d600316c8f00ccbbf38f992c6edc9cffd0
SHA3-384 hash: ffc0a5550030a730372347fc515b36a2dc3b05252cef50926bc8f47704e1db47b76ed92a9aa5dc9aa3379bbd938f68b1
SHA1 hash: 94596d07ac0706f55ad937a8962bc3e7dbf17605
MD5 hash: 703ef2f21e8f384105636bf168ba1425
humanhash: orange-helium-green-eight
File name:703ef2f21e8f384105636bf168ba1425
Download: download sample
Signature Formbook
File size:196'800 bytes
First seen:2022-04-27 08:12:09 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 56a78d55f3f7af51443e58e0ce2fb5f6 (720 x GuLoader, 451 x Formbook, 295 x Loki)
ssdeep 3072:l1NjcVVnLpPunbdUr5rpeaLIJ7fFfqER3kjUoDSN0CE5ZVr78hlN7ygjzH87f9LE:HNeZmiIVlR3tJN8ZVH8PNTA7f9LJUIG
Threatray 15'389 similar samples on MalwareBazaar
TLSH T14B141224E7A0C02BD8E7AB711ABE17529EEA951620BD1A0F27101F6D7D71383DD0E71B
TrID 48.8% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
16.4% (.EXE) Win64 Executable (generic) (10523/12/4)
10.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.8% (.EXE) Win16 NE executable (generic) (5038/12/1)
7.0% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
266
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% directory
Creating a process from a recently created file
Сreating synchronization primitives
Launching a process
Launching cmd.exe command interpreter
Searching for synchronization primitives
Sending a custom TCP request
DNS request
Sending an HTTP GET request
Connecting to a non-recommended domain
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Forced shutdown of a system process
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
control.exe overlay packed shell32.dll
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:
FormBook
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
Found malware configuration
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)
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
Tries to detect virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 616382 Sample: 7jeg36sg84 Startdate: 27/04/2022 Architecture: WINDOWS Score: 100 41 Found malware configuration 2->41 43 Malicious sample detected (through community Yara rule) 2->43 45 Antivirus detection for URL or domain 2->45 47 4 other signatures 2->47 11 7jeg36sg84.exe 18 2->11         started        process3 file4 31 C:\Users\user\AppData\Local\...\dmtoyrf.exe, PE32 11->31 dropped 14 dmtoyrf.exe 11->14         started        process5 signatures6 55 Multi AV Scanner detection for dropped file 14->55 57 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 14->57 59 Tries to detect virtualization through RDTSC time measurements 14->59 61 Injects a PE file into a foreign processes 14->61 17 dmtoyrf.exe 14->17         started        process7 signatures8 33 Modifies the context of a thread in another process (thread injection) 17->33 35 Maps a DLL or memory area into another process 17->35 37 Sample uses process hollowing technique 17->37 39 Queues an APC in another process (thread injection) 17->39 20 explorer.exe 17->20 injected process9 process10 22 cmd.exe 20->22         started        signatures11 49 Modifies the context of a thread in another process (thread injection) 22->49 51 Maps a DLL or memory area into another process 22->51 53 Tries to detect virtualization through RDTSC time measurements 22->53 25 cmd.exe 1 22->25         started        27 explorer.exe 1 157 22->27         started        process12 process13 29 conhost.exe 25->29         started       
Threat name:
Win32.Trojan.FormBook
Status:
Malicious
First seen:
2022-04-27 08:13:09 UTC
File Type:
PE (Exe)
Extracted files:
4
AV detection:
23 of 26 (88.46%)
Threat level:
  5/5
Result
Malware family:
xloader
Score:
  10/10
Tags:
family:xloader campaign:xc52 loader rat suricata
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
Enumerates physical storage devices
Suspicious use of SetThreadContext
Loads dropped DLL
Executes dropped EXE
Xloader Payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
655016f05003b2b590aad7eace9bf77270d7c719c2c440d99cc3fb10799b0b3a
MD5 hash:
0c9ae6eb59c8dfbf14d668e67c6363bb
SHA1 hash:
081aaa58d2eb1f303a9e4937113ff17c94a74624
SH256 hash:
31380cd326e4027b4629af539365d4714a27fc8a7a8fc153d389cfad091017bb
MD5 hash:
7af632f56135a57e67d3b776ed7958b8
SHA1 hash:
210b942ac65155c131cdad0c005964fd0c164688
SH256 hash:
28e384122142131d59cf40d38fefe1439a0783ac1c3ea0351a46ddcbffabb8af
MD5 hash:
221bd0ac6c0ce38190aa3fef9cdf2858
SHA1 hash:
8b28f71b63649f1ae10900978315bed2c5fb9425
Detections:
win_formbook_g0 win_formbook_auto
SH256 hash:
5c6229c4315a736e487b6eae35dd91d600316c8f00ccbbf38f992c6edc9cffd0
MD5 hash:
703ef2f21e8f384105636bf168ba1425
SHA1 hash:
94596d07ac0706f55ad937a8962bc3e7dbf17605
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: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.

Web download

Formbook

Executable exe 5c6229c4315a736e487b6eae35dd91d600316c8f00ccbbf38f992c6edc9cffd0

(this sample)

  
Delivery method
Distributed via web download

Comments



Avatar
zbet commented on 2022-04-27 08:12:12 UTC

url : hxxp://192.210.214.224/150/vbc.exe