MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 703f6ba3c612e1c35bc33fdc2201f9bccc1f8a146ce8b1008b47f581e89a77a0. 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 18 File information Comments
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SHA256 hash: 703f6ba3c612e1c35bc33fdc2201f9bccc1f8a146ce8b1008b47f581e89a77a0
SHA3-384 hash: 97148ed21792c56a3fc38ec5fc073356ff0e9c1b8e9883170447acd87c66074976f204a0110974c92c176945df67b22e
SHA1 hash: d38282f07edd3a2852c8700212308022d390ee83
MD5 hash: 3115dad38ce4191460fecafaa5dfde0f
humanhash: kilo-butter-leopard-butter
File name:Revised Order pdf.exe
Download: download sample
Signature Formbook
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File size:321'572 bytes
First seen:2023-08-30 17:47:32 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 741 x AgentTesla, 431 x GuLoader)
ssdeep 6144:PYa6zOfjlnh/LzNwv3RbS395LF1mAs+4nO6NNRmIQWqrx1:PYpsjlnhTevI3XF1m44nO6I/r/
TLSH T1C364128D07A0D197CCA702B20A37D735AEF2822158655B1B0B843E1F7C617D2AE5E7E7
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 b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter cocaman
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
295
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
formbook
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ID:
1
File name:
Revised Order pdf.exe
Verdict:
Malicious activity
Analysis date:
2023-08-30 17:50:11 UTC
Tags:
formbook xloader
Link:
https://app.any.run/tasks/eebf965f-f5c1-4976-9750-6697c7f309c4

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
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Link:
https://www.capesandbox.com/analysis/445363/
Detection(s):
SecuriteInfo.com.FileRepMalware.13844.10867.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
Сreating synchronization primitives
Launching cmd.exe command interpreter
DNS request
Setting browser functions hooks
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Unauthorized injection to a system process
Unauthorized injection to a browser process
Gathering data
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
control lolbin masquerade overlay packed shell32
Link:
https://www.filescan.io/uploads/64ef80d4d7ae0984750fa782/reports/d9d12d04-28da-4ba1-9019-e63643e8922b/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/703f6ba3c612e1c35bc33fdc2201f9bccc1f8a146ce8b1008b47f581e89a77a0
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/d1c0ca20-b393-4989-ab1b-07839da82ee5
Result
Threat name:
FormBook, NSISDropper
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1300567
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Detected unpacking (changes PE section rights)
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
Found malware configuration
Initial sample is a PE file and has a suspicious name
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)
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
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
Yara detected NSISDropper
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1300567 Sample: Revised_Order_pdf.exe Startdate: 30/08/2023 Architecture: WINDOWS Score: 100 47 Snort IDS alert for network traffic 2->47 49 Found malware configuration 2->49 51 Malicious sample detected (through community Yara rule) 2->51 53 9 other signatures 2->53 11 Revised_Order_pdf.exe 18 2->11         started        process3 file4 31 C:\Users\user\AppData\Local\Temp\kswrf.exe, PE32 11->31 dropped 14 kswrf.exe 11->14         started        process5 signatures6 63 Multi AV Scanner detection for dropped file 14->63 65 Detected unpacking (changes PE section rights) 14->65 67 Machine Learning detection for dropped file 14->67 69 3 other signatures 14->69 17 kswrf.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 2 6 17->20 injected process9 dnsIp10 33 name.shoplazza.store 104.18.233.42, 49765, 80 CLOUDFLARENETUS United States 20->33 35 td-ccm-neg-87-45.wixdns.net 34.149.87.45, 49764, 80 ATGS-MMD-ASUS United States 20->35 37 12 other IPs or domains 20->37 55 System process connects to network (likely due to code injection or exploit) 20->55 24 rundll32.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:
formbook
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Link:
https://mwdb.cert.pl/sample/703f6ba3c612e1c35bc33fdc2201f9bccc1f8a146ce8b1008b47f581e89a77a0/
Threat name:
Win32.Trojan.Leonem
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Status:
Malicious
First seen:
2023-08-28 08:07:01 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=oa7wxi6gclq4gw6dh7oceapzxtgb7cquntulcaeli72yd2e2o6qa._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:sn26 rat spyware stealer trojan
Link:
https://tria.ge/reports/230830-wde6lagf3x/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
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:
1a4425409cf193b3ec1a10d2c80b1d816c0a4f9c74ce4e6cdfd02ed1f8986572
MD5 hash:
823d0583025e096bf34200cbdded9e56
SHA1 hash:
49f9a85d502a104876ffdb7eb6fb3d8f6102db08
Link:
https://www.unpac.me/results/ae4e0a33-751e-44e3-985b-9ffc14546982/
SH256 hash:
703f6ba3c612e1c35bc33fdc2201f9bccc1f8a146ce8b1008b47f581e89a77a0
MD5 hash:
3115dad38ce4191460fecafaa5dfde0f
SHA1 hash:
d38282f07edd3a2852c8700212308022d390ee83
Link:
https://www.unpac.me/results/ae4e0a33-751e-44e3-985b-9ffc14546982/
Malware family:
FormBook
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/703f6ba3c612/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/703f6ba3c612e1c35bc33fdc2201f9bccc1f8a146ce8b1008b47f581e89a77a0

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:DebuggerCheck__GlobalFlags
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Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerException__SetConsoleCtrl
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Active
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Thread
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:maldoc_find_kernel32_base_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:maldoc_getEIP_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:meth_get_eip
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Author:Willi Ballenthin
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SEH__vectored
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Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SHA1_Constants
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Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
Rule name:Windows_Trojan_Formbook
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Author:@malgamy12
Rule name:Windows_Trojan_Formbook_1112e116
Create hunting rule
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
Create hunting rule
Author:@malgamy12

File information

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

Malspam

Formbook

zip d49cf5cfbf87192ef2a039e2afe966f3cf462c3185132118cf488629422540c9

Formbook

Executable exe 703f6ba3c612e1c35bc33fdc2201f9bccc1f8a146ce8b1008b47f581e89a77a0

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 d49cf5cfbf87192ef2a039e2afe966f3cf462c3185132118cf488629422540c9
Cape
Cape
https://www.capesandbox.com/analysis/445363/
  
Dropped by
MD5 d4006c069565219e4bd6abe05d867f8d

Comments