MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c3b9bd6a3c03e763f6255c275cbb3a068de6feef7417d18b7a3e92c6b28753e5. 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 4 File information Comments
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SHA256 hash: c3b9bd6a3c03e763f6255c275cbb3a068de6feef7417d18b7a3e92c6b28753e5
SHA3-384 hash: cc828aa98596a26b075b91ff5d0b0167382adaf85f1e41529a15df1b992c47d30afa69b63b39744a10402b7997fffca5
SHA1 hash: 6f325ce61e9d8916cced15919cbd84fce584e14f
MD5 hash: 325e9bc40c665d845e9edd875631ec48
humanhash: black-kitten-fifteen-moon
File name:bin.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:181'248 bytes
First seen:2022-06-26 19:23:43 UTC
Last seen:2022-06-26 19:31:21 UTC
File type:Executable exe
MIME type:application/x-dosexec
ssdeep 3072:FamFfATiz/CDWALN/Prl8QCUaIUZt/nmYVo+jVMDlMUqc:TJpCnN/58HUaIUZAA/jVMDXq
TLSH T15A049E35E742C070E2B242F5B26D17BB883E1D343295A0AAE3E11AD16EE45E5F52D31F
Reporter 0xToxin
Tags:exe FormBook t65q vjw0rm xloader

Intelligence

File Origin
# of uploads :
2
# of downloads :
298
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/283364/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Launching cmd.exe command interpreter
Searching for synchronization primitives
DNS request
Sending an HTTP GET request
Sending a custom TCP request
Forced shutdown of a system process
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
formbook overlay packed
Link:
https://www.filescan.io/uploads/62b8b25962d792dc57480e88/reports/c772f1a3-522c-4b3d-aedf-3c7e4a27fe3c/overview
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.
Malware family:
Formbook
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/dad50754-1236-41c2-87f2-583c981cf76e
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1020027
Signature
Antivirus / Scanner detection for submitted sample
C2 URLs / IPs found in 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)
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Snort IDS alert for network traffic
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 652523 Sample: bin.exe Startdate: 26/06/2022 Architecture: WINDOWS Score: 100 24 www.sega55.net 2->24 26 www.matchtolender.com 2->26 28 4 other IPs or domains 2->28 42 Snort IDS alert for network traffic 2->42 44 Malicious sample detected (through community Yara rule) 2->44 46 Antivirus / Scanner detection for submitted sample 2->46 48 3 other signatures 2->48 10 bin.exe 2->10         started        signatures3 process4 signatures5 50 Modifies the context of a thread in another process (thread injection) 10->50 52 Maps a DLL or memory area into another process 10->52 54 Sample uses process hollowing technique 10->54 56 2 other signatures 10->56 13 explorer.exe 10->13 injected process6 dnsIp7 30 abbigliamentomedici.com 195.110.124.133, 49833, 80 REGISTER-ASIT Italy 13->30 32 www.oxkm2e0.xyz 45.117.11.244, 49774, 80 INTECHONLINE-INIntechOnlinePrivateLimitedIN China 13->32 34 11 other IPs or domains 13->34 58 System process connects to network (likely due to code injection or exploit) 13->58 60 Performs DNS queries to domains with low reputation 13->60 17 WWAHost.exe 13->17         started        signatures8 process9 signatures10 36 Modifies the context of a thread in another process (thread injection) 17->36 38 Maps a DLL or memory area into another process 17->38 40 Tries to detect virtualization through RDTSC time measurements 17->40 20 cmd.exe 1 17->20         started        process11 process12 22 conhost.exe 20->22         started       
Detection:
xloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/c3b9bd6a3c03e763f6255c275cbb3a068de6feef7417d18b7a3e92c6b28753e5/
Threat name:
Win32.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2022-06-26 19:24:07 UTC
File Type:
PE (Exe)
AV detection:
25 of 26 (96.15%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=yo4322r4aptwh5rflqtvzoz2a2g6n7xpoql5dc32h2jmnmuhkpsq._file
Verdict:
malicious
Label(s):
formbook
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Result
Malware family:
xloader
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Score:
  10/10
Tags:
family:formbook family:xloader loader persistence rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/220626-x4cntscahl/
Behaviour
Modifies Internet Explorer settings
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
Drops file in Program Files directory
Suspicious use of SetThreadContext
Adds Run key to start application
Checks computer location settings
Deletes itself
Loads dropped DLL
Reads user/profile data of web browsers
Adds policy Run key to start application
Blocklisted process makes network request
Executes dropped EXE
Xloader Payload
Formbook
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata: ET MALWARE FormBook CnC Checkin (POST) M2
Unpacked files
SH256 hash:
c3b9bd6a3c03e763f6255c275cbb3a068de6feef7417d18b7a3e92c6b28753e5
MD5 hash:
325e9bc40c665d845e9edd875631ec48
SHA1 hash:
6f325ce61e9d8916cced15919cbd84fce584e14f
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/fe392bae-0568-4a1b-b7e2-0c27fd623260/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/c3b9bd6a3c03/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
Link:
https://yomi.yoroi.company/submissions/c3b9bd6a3c03e763f6255c275cbb3a068de6feef7417d18b7a3e92c6b28753e5

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
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
Rule name:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:win_formbook_auto
Create hunting rule
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 c3b9bd6a3c03e763f6255c275cbb3a068de6feef7417d18b7a3e92c6b28753e5

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/283364/

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