MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b9ecf814b7f31a8ee1445d0256ba7a74f46d3e8f0bb588d10c54cd7f7f0fc202. 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 2 File information Comments
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SHA256 hash: b9ecf814b7f31a8ee1445d0256ba7a74f46d3e8f0bb588d10c54cd7f7f0fc202
SHA3-384 hash: 3378a40e68a23836e4793c2dfe77e7a54150a6f9480bf15d8b6f7068b92b648625734653bf59e257872b2914c7ae34d8
SHA1 hash: d509f417d02c31f4ebe3a7b22448af639d62568b
MD5 hash: 8ab4c430e65defdd7b9975db28d3c92d
humanhash: jersey-blue-south-harry
File name:8ab4c430e65defdd7b9975db28d3c92d.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:303'928 bytes
First seen:2021-04-20 12:00:19 UTC
Last seen:2021-04-20 13:01:57 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'653 x AgentTesla, 19'464 x Formbook, 12'205 x SnakeKeylogger)
ssdeep 6144:818l6GL/xl+HstePVsBMXJlweRotfSCKeqVD1xy:Tl6G7x4stePVaMXvwyQf/Hqd
Threatray 932 similar samples on MalwareBazaar
TLSH 11540256AA59C539D9E0EE37F8D1400447512D0FEC28D22AE51DBF8BB53938FB43923A
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
94
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
8ab4c430e65defdd7b9975db28d3c92d.exe
Verdict:
Malicious activity
Analysis date:
2021-04-20 12:06:14 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/f6422d9f-fa61-463d-8817-2889696bb4cd

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/139597/
Detection(s):
SecuriteInfo.com.Trojan.GenericKD.36743047.32119.10827.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a file
Creating a file in the %temp% directory
Creating a process from a recently created file
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
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
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/688971
Signature
.NET source code contains potential unpacker
Allocates memory in foreign processes
C2 URLs / IPs found in malware configuration
Found malware configuration
Injects a PE file into a foreign processes
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)
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
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 sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Writes to foreign memory regions
Yara detected Costura Assembly Loader
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 393427 Sample: gQAXYo6xIa.exe Startdate: 20/04/2021 Architecture: WINDOWS Score: 100 53 www.merkabahindustries.com 2->53 55 merkabahindustries.com 2->55 69 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->69 71 Found malware configuration 2->71 73 Malicious sample detected (through community Yara rule) 2->73 75 7 other signatures 2->75 11 gQAXYo6xIa.exe 1 5 2->11         started        signatures3 process4 file5 45 C:\Users\user\AppData\Local\notepa.exe, PE32 11->45 dropped 47 C:\Users\user\AppData\...\gQAXYo6xIa.exe, PE32 11->47 dropped 49 C:\Users\user\...\notepa.exe:Zone.Identifier, ASCII 11->49 dropped 51 2 other malicious files 11->51 dropped 93 Writes to foreign memory regions 11->93 95 Allocates memory in foreign processes 11->95 97 Injects a PE file into a foreign processes 11->97 15 gQAXYo6xIa.exe 11->15         started        18 gQAXYo6xIa.exe 11->18         started        20 gQAXYo6xIa.exe 11->20         started        signatures6 process7 signatures8 99 Modifies the context of a thread in another process (thread injection) 15->99 101 Maps a DLL or memory area into another process 15->101 103 Sample uses process hollowing technique 15->103 105 Queues an APC in another process (thread injection) 15->105 22 explorer.exe 15->22 injected 107 Multi AV Scanner detection for dropped file 18->107 109 Machine Learning detection for dropped file 18->109 111 Tries to detect virtualization through RDTSC time measurements 18->111 process9 dnsIp10 57 www.baans-barw.com 202.58.30.191, 49771, 80 HITRON-AS-APHITRONTECHNOLOGYINCTW Hong Kong 22->57 59 www.preciousvessel.com 22->59 61 3 other IPs or domains 22->61 77 System process connects to network (likely due to code injection or exploit) 22->77 26 notepa.exe 3 22->26         started        30 help.exe 22->30         started        32 notepa.exe 22->32         started        signatures11 process12 file13 41 C:\Users\user\AppData\Local\Temp\notepa.exe, PE32 26->41 dropped 43 C:\Users\user\...\notepa.exe:Zone.Identifier, ASCII 26->43 dropped 79 Multi AV Scanner detection for dropped file 26->79 81 Machine Learning detection for dropped file 26->81 83 Writes to foreign memory regions 26->83 91 2 other signatures 26->91 34 notepa.exe 26->34         started        85 Modifies the context of a thread in another process (thread injection) 30->85 87 Maps a DLL or memory area into another process 30->87 89 Tries to detect virtualization through RDTSC time measurements 30->89 37 cmd.exe 1 30->37         started        signatures14 process15 signatures16 63 Multi AV Scanner detection for dropped file 34->63 65 Machine Learning detection for dropped file 34->65 67 Tries to detect virtualization through RDTSC time measurements 34->67 39 conhost.exe 37->39         started        process17
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b9ecf814b7f31a8ee1445d0256ba7a74f46d3e8f0bb588d10c54cd7f7f0fc202/
Gathering data
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=xhwpqffx6mni5ykelubfnot2ot2g2pupbo2yruimktgx67ypyiba._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
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Formbook
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Formbook
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Formbook
+ 922 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader loader persistence rat
Link:
https://tria.ge/reports/210420-vbj77eh93j/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Xloader Payload
Xloader
Malware Config
C2 Extraction:
http://www.preciousvessel.com/spj6/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Formbook
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/b9ecf814b7f31a8ee1445d0256ba7a74f46d3e8f0bb588d10c54cd7f7f0fc202

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:dsc
Create hunting rule
Author:Aaron DeVera
Description:Discord domains
Rule name:INDICATOR_KB_CERT_04f131322cc31d92c849fca351d2f141
Create hunting rule
Author:ditekSHen
Description:Detects executables signed with stolen, revoked or invalid certificates

File information

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

Web download

Formbook

Executable exe b9ecf814b7f31a8ee1445d0256ba7a74f46d3e8f0bb588d10c54cd7f7f0fc202

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/139597/
  
URLhaus
https://urlhaus.abuse.ch/url/1143668/
  
Delivery method
Distributed via web download

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