MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 fbdba28269f2e631a25aeb655b933f2f87b102750bfc70866a2a93738db1e191. 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: 11


Intelligence 11 IOCs YARA 4 File information Comments
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SHA256 hash: fbdba28269f2e631a25aeb655b933f2f87b102750bfc70866a2a93738db1e191
SHA3-384 hash: d1e6a1e317cdd7f3c261800b1d073b18501f7e9d251b50e49e644220e8d2fe9e8d78a3549ec5a0f540fbf0627b2b48f1
SHA1 hash: ef882855aa8bcdb2651fa154e66fce7b20075986
MD5 hash: fa12196c8ad6922d874c0da9d675bf79
humanhash: four-pennsylvania-equal-vermont
File name:fbdba28269f2e631a25aeb655b933f2f87b102750bfc70866a2a93738db1e191
Download: download sample
Signature Formbook
Create hunting rule
File size:223'155 bytes
First seen:2021-05-26 13:41:31 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 099c0646ea7282d232219f8807883be0 (476 x Formbook, 210 x Loki, 107 x AgentTesla)
ssdeep 6144:8sh7Pw1ADc/+HQvO0zxHr5aB4zv0lmVtHq7rZi:F7WADeGQ20Nr0B4zv0lKU4
Threatray 5'441 similar samples on MalwareBazaar
TLSH 2424125556C4847BC44B3B301ADBD736C6F272026233139F8B601FAFA9273D6A9562C7
Reporter madjack_red
Tags:FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
113
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
fbdba28269f2e631a25aeb655b933f2f87b102750bfc70866a2a93738db1e191
Verdict:
Malicious activity
Analysis date:
2021-05-26 16:46:59 UTC
Tags:
installer
Link:
https://app.any.run/tasks/a4e7adf0-66d3-4303-b463-587ffcd8bd1d

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/162427/
Detection(s):
PUA.Win.Trojan.Casino-141
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a file
DNS request
Sending a UDP request
Unauthorized injection to a recently created process
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
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/792585
Signature
C2 URLs / IPs found in malware configuration
Detected unpacking (changes PE section rights)
Found malware configuration
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 submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Uses ipconfig to lookup or modify the Windows network settings
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 424990 Sample: ygv2xv4xHM Startdate: 26/05/2021 Architecture: WINDOWS Score: 100 34 www.libdeliverance.com 2->34 36 www.123phimsex.net 2->36 46 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->46 48 Found malware configuration 2->48 50 Malicious sample detected (through community Yara rule) 2->50 52 4 other signatures 2->52 11 ygv2xv4xHM.exe 21 2->11         started        signatures3 process4 file5 32 C:\Users\user\AppData\Local\...\System.dll, PE32 11->32 dropped 64 Detected unpacking (changes PE section rights) 11->64 66 Maps a DLL or memory area into another process 11->66 68 Tries to detect virtualization through RDTSC time measurements 11->68 15 ygv2xv4xHM.exe 11->15         started        signatures6 process7 signatures8 70 Modifies the context of a thread in another process (thread injection) 15->70 72 Maps a DLL or memory area into another process 15->72 74 Sample uses process hollowing technique 15->74 76 Queues an APC in another process (thread injection) 15->76 18 explorer.exe 15->18 injected process9 dnsIp10 38 www.ryohei-miyazaki.com 183.181.83.83, 49781, 80 VECTANTARTERIANetworksCorporationJP Japan 18->38 40 briantracysolutions.com 43.250.140.33, 49775, 80 SYNERGYWHOLESALE-APSYNERGYWHOLESALEPTYLTDAU Australia 18->40 42 16 other IPs or domains 18->42 54 System process connects to network (likely due to code injection or exploit) 18->54 56 Uses ipconfig to lookup or modify the Windows network settings 18->56 22 ipconfig.exe 12 18->22         started        26 autofmt.exe 18->26         started        signatures11 process12 dnsIp13 44 www.xyxy.cool 22->44 58 Modifies the context of a thread in another process (thread injection) 22->58 60 Maps a DLL or memory area into another process 22->60 62 Tries to detect virtualization through RDTSC time measurements 22->62 28 cmd.exe 1 22->28         started        signatures14 process15 process16 30 conhost.exe 28->30         started       
Detection:
formbook
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Link:
https://mwdb.cert.pl/sample/fbdba28269f2e631a25aeb655b933f2f87b102750bfc70866a2a93738db1e191/
Threat name:
Win32.Trojan.FormBook
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Status:
Malicious
First seen:
2021-05-25 10:31:59 UTC
AV detection:
23 of 29 (79.31%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=7pn2fatj6ltddis25nsvxez7f6d3catvbp6hbbtkfkjxhdnr4giq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
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Formbook
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dcea3ce074a9cc06d03641b052fe3a3f81abb72c480de228b8664dade74c4dce
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f5a2547fc06aeb5416ee308668f2091e0e21c07b57aa6f4e5db47e06e6899a73
Formbook
f782375e80f3a68b36457886ac1c6490e2497e6c9fb3ffdb33c1679597f0770e
Formbook
+ 5'431 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader loader rat
Link:
https://tria.ge/reports/210526-ww587zhxpa/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Loads dropped DLL
Xloader Payload
Xloader
Malware Config
C2 Extraction:
http://www.briantracysolutions.com/vfm2/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.47
Link:
https://yomi.yoroi.company/submissions/fbdba28269f2e631a25aeb655b933f2f87b102750bfc70866a2a93738db1e191

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:Formbook
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
Rule name:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
Rule name:win_formbook_auto
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Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:autogenerated rule brought to you by yara-signator
Rule name:win_formbook_g0
Create hunting rule
Author:Slavo Greminger, SWITCH-CERT

File information

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

Cape
Cape
https://www.capesandbox.com/analysis/162427/

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