MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 001bf57ded55236e2f1f0bbf7bf313b5397d955a9ce80009b2ac61b3f84e5544. 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: 9


Intelligence 9 IOCs YARA File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 001bf57ded55236e2f1f0bbf7bf313b5397d955a9ce80009b2ac61b3f84e5544
SHA3-384 hash: 9288c5065429e1cc130082a360545d19578db0ad3325a742cc98af98a0f38a19d6e1bdbb0b5bf09e5c87c017659cc7f4
SHA1 hash: 36ae743ccd8bd4dabee02394fda0d09dde2f8558
MD5 hash: bd5aef7848775f79ddd4820775b2a3ca
humanhash: iowa-oxygen-winner-johnny
File name:vbc.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:766'464 bytes
First seen:2020-08-13 14:38:32 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash bd9a6764235778d7fabb327e5e20a560 (8 x AgentTesla, 6 x Loki, 2 x NetWire)
ssdeep 12288:qmp9XVk3rNq8srw+ZdKSsWItO8n+D0s+rIJA/XO9Y7rap/XBe5:3lQNqHMWKKcAFrJ6e9Yna7e
Threatray 2'250 similar samples on MalwareBazaar
TLSH D9F49E62B2E37432D167293D9D1B77759829BE112A287B462BF41C4C5F393B138362E3
Reporter abuse_ch
Tags:exe FormBook


Avatar
abuse_ch
Malspam distributing Formbook:

HELO: vpsquipons.vservers.es
Sending IP: 149.62.169.219
From: Arctic Shipping Corporation <jmfelismeno@arcticshipping.com.ph>
Subject: Re: Statement of Account(S.O.A) July 2020
Attachment: Bank Swift Validation.xlsx

Formbook payload URL:
http://wsdyunitedfrkesokoriorimistreetsm47yra.duckdns.org/chnsfrnd1/vbc.exe

Formbook C2:
http://www.glamotd.com/pth/

Intelligence

File Origin
# of uploads :
1
# of downloads :
87
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/45249/
Detection(s):
PUA.Win.Adware.Slugin-6803969-0
Create hunting rule

PUA.Win.Adware.Slugin-6840354-0
Create hunting rule

SecuriteInfo.com.Variant.Zusy.311248.5720.6726.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Sending a UDP request
Launching the process to change network settings
Launching cmd.exe command interpreter
Setting browser functions hooks
Forced shutdown of a system process
Unauthorized injection to a system process
Unauthorized injection to a browser process
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/426630
Signature
Benign windows process drops PE files
Contains functionality to detect sleep reduction / modifications
Detected FormBook malware
Detected unpacking (changes PE section rights)
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)
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
System process connects to network (likely due to code injection or exploit)
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)
Uses netsh to modify the Windows network and firewall settings
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 265966 Sample: vbc.exe Startdate: 14/08/2020 Architecture: WINDOWS Score: 100 56 Malicious sample detected (through community Yara rule) 2->56 58 Detected unpacking (changes PE section rights) 2->58 60 Yara detected FormBook 2->60 62 6 other signatures 2->62 10 vbc.exe 2->10         started        process3 signatures4 78 Detected unpacking (changes PE section rights) 10->78 80 Maps a DLL or memory area into another process 10->80 82 Tries to detect virtualization through RDTSC time measurements 10->82 84 Contains functionality to detect sleep reduction / modifications 10->84 13 vbc.exe 10->13         started        process5 signatures6 86 Modifies the context of a thread in another process (thread injection) 13->86 88 Maps a DLL or memory area into another process 13->88 90 Sample uses process hollowing technique 13->90 92 Queues an APC in another process (thread injection) 13->92 16 explorer.exe 4 6 13->16 injected process7 dnsIp8 46 www.saundor.com 52.23.148.124, 49740, 80 AMAZON-AESUS United States 16->46 48 www.osteo-10.com 16->48 50 2 other IPs or domains 16->50 40 C:\Users\user\AppData\...\ThumbCacherfixs.exe, PE32 16->40 dropped 64 System process connects to network (likely due to code injection or exploit) 16->64 66 Benign windows process drops PE files 16->66 21 wlanext.exe 16->21         started        25 ThumbCacherfixs.exe 16->25         started        27 ThumbCacherfixs.exe 16->27         started        29 3 other processes 16->29 file9 signatures10 process11 file12 42 C:\Users\user\AppData\...\LMAlogrv.ini, data 21->42 dropped 44 C:\Users\user\AppData\...\LMAlogri.ini, data 21->44 dropped 68 Detected FormBook malware 21->68 70 Tries to steal Mail credentials (via file access) 21->70 72 Tries to harvest and steal browser information (history, passwords, etc) 21->72 76 2 other signatures 21->76 31 cmd.exe 21->31         started        74 Maps a DLL or memory area into another process 25->74 33 ThumbCacherfixs.exe 25->33         started        36 ThumbCacherfixs.exe 27->36         started        signatures13 process14 signatures15 38 conhost.exe 31->38         started        52 Modifies the context of a thread in another process (thread injection) 33->52 54 Maps a DLL or memory area into another process 33->54 process16
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/001bf57ded55236e2f1f0bbf7bf313b5397d955a9ce80009b2ac61b3f84e5544/
Threat name:
Win32.Backdoor.NanoCore
Create hunting rule
Status:
Malicious
First seen:
2020-08-13 14:40:12 UTC
AV detection:
26 of 29 (89.66%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
netwirerc
Create hunting rule
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2fd949e12ca1d32c55059b6710f33e098ae5c357156d79208ab92c066c80be11
Formbook
3e98d7f59e495ddfa5140a50f70347bb4a56296ca2dcb6602f65ebb4e4a0373b
Formbook
4c1fe4c0f5d8d1277036802c83df3e083b31318dfc2c194ce93b7169d7ba6e3d
Formbook
79aeb20e06ed62c3986034328cd3a6a5e08eb617cba4af679112640f786497da
Formbook
9b2c6f08cd9a4e3b144422de4d540290542ce50239f2c85697a036a461b25264
Formbook
9daa8e87928b88143b9482b989764524754c86d142027ccaad1fc452f52c1765
Formbook
b042e4bdfe19df2aa474fd5e2294aecc9a07d447c96466db7a7e20316d885634
Formbook
b1ab330d8407adbc0731fd66b869bca53515ccf732d1ad498515e5e04f993de4
Formbook
b57c9384280389b262d09cb4fa5b5465aadd4aaba2afb6d48c5d6e7c3f8d923e
Formbook
ee4ae13d3fd3b58d86e270db11937476b4b7add1673983c2c28ed4d7dcc75552
Formbook
+ 2'240 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
rat spyware trojan stealer family:formbook persistence
Link:
https://tria.ge/reports/200813-zxf7w84kme/
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
Drops file in Program Files directory
Suspicious use of SetThreadContext
Deletes itself
Reads user/profile data of web browsers
Uses the VBS compiler for execution
Adds policy Run key to start application
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.glamotd.com/pth/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Tinba
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/001bf57ded55236e2f1f0bbf7bf313b5397d955a9ce80009b2ac61b3f84e5544

File information

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

Malspam

Formbook

Excel file xlsx 1f5f1d35904237bc289b6a876f07773c1492e8f98a0eb8d379ccc0a64e360638

Formbook

Executable exe 001bf57ded55236e2f1f0bbf7bf313b5397d955a9ce80009b2ac61b3f84e5544

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/432014/
  
Dropped by
MD5 6ae0780078c3d9b75cb489a861ac8843
  
Dropped by
SHA256 1f5f1d35904237bc289b6a876f07773c1492e8f98a0eb8d379ccc0a64e360638
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/45249/

Comments