MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5b91196649a276f967087fca9bbf4898b38afd3da43294f68b0f934464edfaf1. 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 2 File information Comments

SHA256 hash: 5b91196649a276f967087fca9bbf4898b38afd3da43294f68b0f934464edfaf1
SHA3-384 hash: 968840524c7e1389bf7cfe6a83a4ea5a91fc5b00fbc29a019c300ec0fcf110139285238c170cb5301347db19616fa1b9
SHA1 hash: 6d81674a9a83cca2efdfe2eb94f26319a87572db
MD5 hash: dc7b159bce6a7223f27e7c7dc63ffb50
humanhash: speaker-cup-august-speaker
File name:New order.exe
Download: download sample
Signature Formbook
File size:249'407 bytes
First seen:2022-03-23 07:00:32 UTC
Last seen:2022-03-23 14:02:32 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 7fa974366048f9c551ef45714595665e (946 x Formbook, 398 x Loki, 261 x AgentTesla)
ssdeep 6144:rGiJQFe2P9PSPUo2c/W+0XZCh9hWSzOgQY1PyA:CdPFMUoxLKZ898cOBuPj
Threatray 14'337 similar samples on MalwareBazaar
TLSH T1053412236AD492F7DE000A3142B7D7F1F7B912ED41E198536BA46E53212A703DE173EA
File icon (PE):PE icon
dhash icon b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
3
# of downloads :
204
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
Launching a process
Сreating synchronization primitives
Launching cmd.exe command interpreter
Searching for synchronization primitives
Reading critical registry keys
Setting browser functions hooks
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Unauthorized injection to a system process
Unauthorized injection to a browser process
Verdict:
Malicious
Threat level:
  10/10
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.
Gathering data
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 malware configuration
Initial sample is a PE file and has a suspicious name
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: 594917 Sample: New order.exe Startdate: 23/03/2022 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 New order.exe 18 2->11         started        process3 file4 31 C:\Users\user\AppData\Local\...\htzhbqib.exe, PE32 11->31 dropped 14 htzhbqib.exe 11->14         started        process5 signatures6 53 Multi AV Scanner detection for dropped file 14->53 55 Tries to detect virtualization through RDTSC time measurements 14->55 17 htzhbqib.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 2 161 17->20         started        22 explorer.exe 17->22 injected process9 process10 24 cmd.exe 20->24         started        signatures11 49 Maps a DLL or memory area into another process 24->49 51 Tries to detect virtualization through RDTSC time measurements 24->51 27 cmd.exe 1 24->27         started        process12 process13 29 conhost.exe 27->29         started       
Threat name:
Win32.Trojan.Woreflint
Status:
Malicious
First seen:
2022-03-23 03:44:56 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
16 of 42 (38.10%)
Threat level:
  5/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:j01s rat spyware stealer trojan
Behaviour
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
Formbook Payload
Formbook
Unpacked files
SH256 hash:
3803476ffdd21386d20ea933b2dcd492faa6556b6f2957d333508afb5f7c4589
MD5 hash:
b18d0515c019160253fb1970403e06b7
SHA1 hash:
ccb558711728d17f5bf67fcdcf80c2a4918b83de
Detections:
win_formbook_g0 win_formbook_auto
SH256 hash:
bb88b6a24852c15afbd261baec4d2c54cc6358ffe229d6b258d59aeefb322108
MD5 hash:
5d17c7f86af1a923b76333c969e8ba47
SHA1 hash:
574b39176f210ca091c54b5eb98054efecc92dc3
SH256 hash:
5b91196649a276f967087fca9bbf4898b38afd3da43294f68b0f934464edfaf1
MD5 hash:
dc7b159bce6a7223f27e7c7dc63ffb50
SHA1 hash:
6d81674a9a83cca2efdfe2eb94f26319a87572db
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: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.

Malspam

Formbook

Executable exe 5b91196649a276f967087fca9bbf4898b38afd3da43294f68b0f934464edfaf1

(this sample)

  
Dropped by
formbook
  
Delivery method
Distributed via e-mail attachment

Comments