MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2666d6497d3cc713c61afcf15370f3f4efd89e1dd719afcb99c1184236b35112. 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: 17


Intelligence 17 IOCs YARA 8 File information Comments
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SHA256 hash: 2666d6497d3cc713c61afcf15370f3f4efd89e1dd719afcb99c1184236b35112
SHA3-384 hash: 836fb2089494a7ae20baa3b19c576b272b260530379028b33088d42074c2fb61508c3fc718338532128ba280f6bc5329
SHA1 hash: 3bc345be423005b3e146d2cce8343c59ed9dd8e2
MD5 hash: 18631c9f2c7e9bd49b4b7f7b938ae94f
humanhash: florida-william-california-shade
File name:18631c9f2c7e9bd49b4b7f7b938ae94f.exe
Download: download sample
Signature Formbook
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File size:296'005 bytes
First seen:2023-02-08 18:53:58 UTC
Last seen:2023-02-08 20:30:59 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 741 x AgentTesla, 427 x GuLoader)
ssdeep 6144:BYa6Dh4qR0DyWIHQ7lRTKLAfPQ3dsJ8pJ0p4mZLiTuZD:BYhiqKGQBKLAfo3dG8nI4mZLKu
TLSH T1F0541261FBB0D126E9B23F351E3B1B6256FBD927C468461F13A01B087816543DB2DB93
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon b2e1b496a6cada72 (13 x LummaStealer, 12 x AsyncRAT, 8 x Rhadamanthys)
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
187
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
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ID:
1
File name:
18631c9f2c7e9bd49b4b7f7b938ae94f.exe
Verdict:
Malicious activity
Analysis date:
2023-02-08 18:58:38 UTC
Tags:
formbook xloader trojan stealer
Link:
https://app.any.run/tasks/2323466a-9de9-4c5c-863a-b89513fd4340

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/362236/
Detection(s):
SecuriteInfo.com.Trojan.Garf.Gen.8.15141.21906.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a window
Creating a process from a recently created file
Launching a process
Sending a custom TCP request
Searching for synchronization primitives
Сreating synchronization primitives
Launching cmd.exe command interpreter
Setting browser functions hooks
Unauthorized injection to a recently created process by context flags manipulation
Unauthorized injection to a system process
Unauthorized injection to a browser process
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/66711/overview
Behaviour
MalwareBazaar
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
83%
Tags:
overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/63e3efce459bcf4604ff90e3/reports/4e55add9-0e1d-4c3f-9f67-e509ce1439d5/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/2666d6497d3cc713c61afcf15370f3f4efd89e1dd719afcb99c1184236b35112
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/05fd87f6-346b-4f15-94ab-c0eba51affa4
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1169425
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
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)
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
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 signatures2 2 Behavior Graph ID: 802207 Sample: C9KUfPUKbO.exe Startdate: 09/02/2023 Architecture: WINDOWS Score: 100 47 Malicious sample detected (through community Yara rule) 2->47 49 Antivirus detection for URL or domain 2->49 51 Multi AV Scanner detection for submitted file 2->51 53 4 other signatures 2->53 11 C9KUfPUKbO.exe 19 2->11         started        process3 file4 31 C:\Users\user\AppData\Local\...\nsqcrlsrh.exe, PE32 11->31 dropped 14 nsqcrlsrh.exe 11->14         started        process5 signatures6 63 Multi AV Scanner detection for dropped file 14->63 65 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 14->65 67 Maps a DLL or memory area into another process 14->67 69 Tries to detect virtualization through RDTSC time measurements 14->69 17 nsqcrlsrh.exe 14->17         started        process7 signatures8 39 Modifies the context of a thread in another process (thread injection) 17->39 41 Maps a DLL or memory area into another process 17->41 43 Sample uses process hollowing technique 17->43 45 Queues an APC in another process (thread injection) 17->45 20 explorer.exe 4 6 17->20 injected process9 dnsIp10 33 www.usrisik.com 20->33 35 www.dreamrunteam.com 20->35 37 4 other IPs or domains 20->37 55 System process connects to network (likely due to code injection or exploit) 20->55 24 chkdsk.exe 20->24         started        signatures11 process12 signatures13 57 Modifies the context of a thread in another process (thread injection) 24->57 59 Maps a DLL or memory area into another process 24->59 61 Tries to detect virtualization through RDTSC time measurements 24->61 27 cmd.exe 1 24->27         started        process14 process15 29 conhost.exe 27->29         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/2666d6497d3cc713c61afcf15370f3f4efd89e1dd719afcb99c1184236b35112/
Threat name:
Win32.Spyware.Noon
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Status:
Malicious
First seen:
2023-02-08 08:53:08 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
19 of 26 (73.08%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=eztnmsl5htdrhrq27tyvg4ht6tx5rhq524m27s4zyemeenvtkeja._file
Verdict:
malicious
Label(s):
formbook
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Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook campaign:sk29 rat spyware stealer trojan
Link:
https://tria.ge/reports/230208-xj791adg6t/
Behaviour
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
Suspicious use of SetThreadContext
Executes dropped EXE
Loads dropped DLL
Formbook payload
Formbook
Unpacked files
SH256 hash:
b56542ffa7766320842da7324db41990fa156430f14bbd513c675f3f47438110
MD5 hash:
7c36a6b6cf73d28783eba67d6dc4cab5
SHA1 hash:
68192b23f81d0d336eaaf6a511825c55f2f7d063
Link:
https://www.unpac.me/results/de6d4248-bb71-47b6-aea6-745d6386500a/
SH256 hash:
2666d6497d3cc713c61afcf15370f3f4efd89e1dd719afcb99c1184236b35112
MD5 hash:
18631c9f2c7e9bd49b4b7f7b938ae94f
SHA1 hash:
3bc345be423005b3e146d2cce8343c59ed9dd8e2
Link:
https://www.unpac.me/results/de6d4248-bb71-47b6-aea6-745d6386500a/
Malware family:
XLoader
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/2666d6497d3c/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/2666d6497d3cc713c61afcf15370f3f4efd89e1dd719afcb99c1184236b35112

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:azov_Dropped
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Author:Potatech
Description:Azov Detection
Rule name:meth_get_eip
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Author:Willi Ballenthin
Rule name:meth_stackstrings
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Author:Willi Ballenthin
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
Rule name:Windows_Trojan_Formbook
Create hunting rule
Author:@malgamy12
Rule name:Windows_Trojan_Formbook_1112e116
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Author:Elastic Security
Rule name:win_formbook_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.formbook.
Rule name:win_formbook_w0
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Author:@malgamy12

File information

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

Web download

Formbook

Executable exe 2666d6497d3cc713c61afcf15370f3f4efd89e1dd719afcb99c1184236b35112

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2533264/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/362236/

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