MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 55f287c30331608f0796a2c9bda16a5a9429b7cb0c8d3928d2ee63184bfce9fb. 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 1 File information Comments
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SHA256 hash: 55f287c30331608f0796a2c9bda16a5a9429b7cb0c8d3928d2ee63184bfce9fb
SHA3-384 hash: fd6f9b4125a339c5abc3867a53ab25b2e13846f83134264274018fb8b68e3a6ef9f9fb6f0436ace9491958c8b83acb98
SHA1 hash: 0a7b86b5b5633ef29bf928c5b7f4649225ee0aee
MD5 hash: 31439fb7f79009fbed1abfeeb4d4a35b
humanhash: emma-summer-fruit-twelve
File name:proforma invoice.vbs
Download: download sample
Signature Formbook
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File size:3'379 bytes
First seen:2022-09-06 09:30:44 UTC
Last seen:Never
File type:Visual Basic Script (vbs) vbs
MIME type:text/plain
ssdeep 48:Akmz0JEKBd2+j+6LHlCAVNSWvNolzyJTLNffElp2+TU0+:brW6LHUO1nzUjpA0+
TLSH T18061400D348730AE98231CF1CC4F156DB4B29B56A77982107B0DE6D69D394ACE7D6D2C
Reporter 0xToxin
Tags:FormBook vbs


Avatar
0xToxin
https://onedrive.live.com/download?cid=7C9C82DE5899257A&resid=7C9C82DE5899257A!2317&authkey=AK8aVFTSbR18HRk

Intelligence

File Origin
# of uploads :
1
# of downloads :
212
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/308123/
Detection(s):
SecuriteInfo.com.VB.Trojan.Valyria.7125.21641.19003.UNOFFICIAL
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Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Link:
https://www.filescan.io/uploads/6317135886d0d32ada63397f/reports/6443dde4-10ef-49a1-b5aa-4926858584e1/overview
Result
Verdict:
MALICIOUS
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.adwa.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1065520
Signature
C2 URLs / IPs found in malware configuration
DLL side loading technique detected
Drops PE files to the startup folder
Drops VBS files to the startup folder
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)
Powershell drops PE file
Queues an APC in another process (thread injection)
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Very long command line found
Writes to foreign memory regions
Wscript starts Powershell (via cmd or directly)
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 698046 Sample: proforma invoice.vbs Startdate: 06/09/2022 Architecture: WINDOWS Score: 100 76 Malicious sample detected (through community Yara rule) 2->76 78 Yara detected FormBook 2->78 80 C2 URLs / IPs found in malware configuration 2->80 8 wscript.exe 15 2->8         started        12 wscript.exe 15 2->12         started        process3 dnsIp4 40 onedrive.live.com 8->40 42 bjbbcw.am.files.1drv.com 8->42 44 am-files.fe.1drv.com 8->44 82 System process connects to network (likely due to code injection or exploit) 8->82 84 Wscript starts Powershell (via cmd or directly) 8->84 86 Very long command line found 8->86 14 powershell.exe 14 22 8->14         started        19 cmd.exe 1 8->19         started        46 l-0004.l-dc-msedge.net 12->46 48 l-0003.l-dc-msedge.net 12->48 50 3 other IPs or domains 12->50 21 cmd.exe 12->21         started        23 powershell.exe 12->23         started        signatures5 process6 dnsIp7 52 l-0003.l-dc-msedge.net 13.107.43.12, 443, 49731, 49732 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 14->52 54 l-0004.l-dc-msedge.net 13.107.43.13, 443, 49729, 49730 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 14->54 60 3 other IPs or domains 14->60 38 C:\Users\user\AppData\...\AgileDotNetRT64.dll, PE32+ 14->38 dropped 64 Writes to foreign memory regions 14->64 66 DLL side loading technique detected 14->66 68 Injects a PE file into a foreign processes 14->68 70 Powershell drops PE file 14->70 25 RegAsm.exe 14->25         started        28 conhost.exe 14->28         started        72 Drops VBS files to the startup folder 19->72 74 Drops PE files to the startup folder 19->74 30 conhost.exe 19->30         started        32 conhost.exe 21->32         started        56 192.168.2.1 unknown unknown 23->56 58 onedrive.live.com 23->58 62 2 other IPs or domains 23->62 34 conhost.exe 23->34         started        file8 signatures9 process10 signatures11 88 Modifies the context of a thread in another process (thread injection) 25->88 90 Maps a DLL or memory area into another process 25->90 92 Tries to detect virtualization through RDTSC time measurements 25->92 94 Queues an APC in another process (thread injection) 25->94 36 explorer.exe 25->36 injected process12
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/55f287c30331608f0796a2c9bda16a5a9429b7cb0c8d3928d2ee63184bfce9fb/
Threat name:
Script-WScript.Trojan.Valyria
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Status:
Malicious
First seen:
2022-09-05 12:34:12 UTC
File Type:
Text (VBS)
AV detection:
14 of 25 (56.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=kxzipqydgfqi6b4wule33ilklkkctn6lbsgtskgs5zrrqs745h5q._file
Verdict:
malicious
Label(s):
formbook
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Result
Malware family:
n/a
Score:
  8/10
Tags:
n/a
Link:
https://tria.ge/reports/220906-lg2tnafhcr/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: RenamesItself
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Checks computer location settings
Blocklisted process makes network request
Malware family:
FormBook
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/55f287c30331/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/55f287c30331608f0796a2c9bda16a5a9429b7cb0c8d3928d2ee63184bfce9fb

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:meth_get_eip
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Author:Willi Ballenthin

File information

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

  
Delivery method
Distributed via e-mail link
Cape
Cape
https://www.capesandbox.com/analysis/308123/

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