MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 25773608894ed7dced5dd50dc02483ffdd6d9ee3d79333aa8292c5d2a2586e21. 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 3 File information Comments
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SHA256 hash: 25773608894ed7dced5dd50dc02483ffdd6d9ee3d79333aa8292c5d2a2586e21
SHA3-384 hash: af82458c5bdf263bcb6ca9f38026c5db72a8cc5aa485bc60676dea8c9e584e2630002ff9815094b172cb713f6d7f042a
SHA1 hash: 4f8ba6b8eee9c2f612cd046b34905cd110ec1b12
MD5 hash: 0a7ee72e2b57214272b36a91835ece31
humanhash: nuts-virginia-bacon-potato
File name:networksec.exe.vir
Download: download sample
Signature Formbook
Create hunting rule
File size:478'720 bytes
First seen:2022-06-21 10:20:21 UTC
Last seen:2022-06-21 10:49:39 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:2bv8HcnIaGNzBjgZOIl1sRnUg0kWIb9E:Yv8HctGNziZ3l1cUgIq
TLSH T15EA4D0F48FF4B966E02421B7B4A4607C77E35E1DD851E53ADA9BF04A34A1AC264E0F07
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) Win16/32 Executable Delphi generic (2072/23)
Reporter KdssSupport
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
205
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
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Link:
https://www.capesandbox.com/analysis/281905/
Detection(s):
SecuriteInfo.com.Trojan.Siggen18.10673.11638.2353.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Unauthorized injection to a recently created process
Creating a file
Сreating synchronization primitives
Launching a process
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/62b19b7146804683cbba4264/reports/449ea1a6-c1bb-4c60-b548-388e80d29b19/overview
Result
Verdict:
UNKNOWN
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/a7743006-0230-4067-a0a2-cd41e8db1cbe
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1016983
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Injects a PE file into a foreign processes
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
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Uses netsh to modify the Windows network and firewall settings
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 649475 Sample: networksec.exe.vir Startdate: 21/06/2022 Architecture: WINDOWS Score: 100 33 www.timelyzer.com 2->33 37 Malicious sample detected (through community Yara rule) 2->37 39 Antivirus detection for URL or domain 2->39 41 Multi AV Scanner detection for submitted file 2->41 43 4 other signatures 2->43 11 networksec.exe.exe 3 2->11         started        signatures3 process4 file5 31 C:\Users\user\...\networksec.exe.exe.log, ASCII 11->31 dropped 53 Tries to detect virtualization through RDTSC time measurements 11->53 55 Injects a PE file into a foreign processes 11->55 15 networksec.exe.exe 11->15         started        signatures6 process7 signatures8 57 Modifies the context of a thread in another process (thread injection) 15->57 59 Maps a DLL or memory area into another process 15->59 61 Sample uses process hollowing technique 15->61 63 Queues an APC in another process (thread injection) 15->63 18 explorer.exe 2 152 15->18         started        21 explorer.exe 15->21 injected process9 dnsIp10 35 192.168.2.1 unknown unknown 18->35 24 netsh.exe 18->24         started        45 Uses netsh to modify the Windows network and firewall settings 21->45 signatures11 process12 signatures13 47 Modifies the context of a thread in another process (thread injection) 24->47 49 Maps a DLL or memory area into another process 24->49 51 Tries to detect virtualization through RDTSC time measurements 24->51 27 cmd.exe 1 24->27         started        process14 process15 29 conhost.exe 27->29         started       
Detection:
xloader
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Link:
https://mwdb.cert.pl/sample/25773608894ed7dced5dd50dc02483ffdd6d9ee3d79333aa8292c5d2a2586e21/
Threat name:
ByteCode-MSIL.Trojan.FormBook
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Status:
Malicious
First seen:
2022-06-21 03:03:12 UTC
File Type:
PE (.Net Exe)
Extracted files:
6
AV detection:
17 of 26 (65.38%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ev3tmcejj3l5z3k52ug4ajed77ow3hxd26jthkucslc5fisynyqq._file
Verdict:
malicious
Label(s):
formbook
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Result
Malware family:
xloader
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Score:
  10/10
Tags:
family:xloader campaign:a2es loader persistence rat spyware stealer suricata
Link:
https://tria.ge/reports/220621-mdm2rsfbf6/
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
Drops file in Program Files directory
Suspicious use of SetThreadContext
Deletes itself
Reads user/profile data of web browsers
Adds policy Run key to start application
Xloader Payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata: ET MALWARE FormBook CnC Checkin (POST) M2
Unpacked files
SH256 hash:
ae5dd0a7fc20901973744dacd5ca578abf254cd8d8641b9a0e24826db97f953f
MD5 hash:
582a38cd558a01e3c0b65c405430e5af
SHA1 hash:
d76316fd02714d58f2d5628622e344acdd721215
Detections:
win_formbook_g0
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win_formbook_auto
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Link:
https://www.unpac.me/results/17e44085-ed97-4c5f-bf0c-17f5326642ec/
Parent samples :
b138102457454a3101f17bba4da29d991c4330f387df3d0db2165aaabee608d2
0793dfe009772f771270e113edc94fc7a19fa5d7f53a3e858f9775319b9d536e
98f3a321eecbb419352f9ecbf3ef45a404ee280d18aa148c4e1dc80867cc09a2
00509d2de60dcdf523ea44b90e5dbbb510f6298bcd9810686ea625d33160176e
b326a836015d646984f10a251e4b6678a9822a1f365369512b80f0928b35299d
f6c20c48de3ffdb54b94206a36926206993732ee873b0e0916e417ff93e9f878
7ead9b6c89ec926f1b8f0f793e305315f9bc59876e14b57653e47f336648eafc
25773608894ed7dced5dd50dc02483ffdd6d9ee3d79333aa8292c5d2a2586e21
a1fda3d25de841c11ff5dae7f624462a8ee8b66ad97ead52b2d69f88875c3e5a
29706d5927c63e4ef3241012c1a81d1ca0382fbaa05d7f115c39184a03c598c3
f6b709d4d41b801c2f5df85f05f3396ab9a2d0b1851ebdc5e434b03c184dacd6
765c9f36ef8ac4c126c700a74d79f85ad6f02cc7e3539c1f79337efd9fd21bf6
329aff3de19577cdf2a9cba76a69b538280b0984577226b52ed9eeb193bbe0e7
05400e2e332ef1360d0e1a85c751d4e33e1269e7d5087ea695fe53b62180a121
215e5a85cc6a627b1abdf8744a7b20c3c3f2663ec5e59264d40679f004d4eca0
SH256 hash:
6de8bc7d4844efdb55328126b632a374bee9aaf3073cf9ca5fe5fdf303106f8e
MD5 hash:
7ce2d10bd0f02667bc0e1343d9ffc1c1
SHA1 hash:
c3a5b4e5721085022eb7bf0008b7e449f9369fcf
Link:
https://www.unpac.me/results/17e44085-ed97-4c5f-bf0c-17f5326642ec/
SH256 hash:
f9c57593fc375eaaa3d2ee075e89f5bfc5acde3d84de96d14bf6f10a49f013d6
MD5 hash:
368753305d6debaebd6437c3ff063840
SHA1 hash:
946f58aaf17a8260fcb31ac243965540d1574b3d
Link:
https://www.unpac.me/results/17e44085-ed97-4c5f-bf0c-17f5326642ec/
SH256 hash:
8c6b268858082696d50f92de6faf019b941c9fbbd7fc9ea302331c0052dd5b8a
MD5 hash:
f6f8a438490acb52b814aaf7a07d24dc
SHA1 hash:
75392732856bea25f5ae1cdc993618ae8e5ea53d
Link:
https://www.unpac.me/results/17e44085-ed97-4c5f-bf0c-17f5326642ec/
SH256 hash:
25773608894ed7dced5dd50dc02483ffdd6d9ee3d79333aa8292c5d2a2586e21
MD5 hash:
0a7ee72e2b57214272b36a91835ece31
SHA1 hash:
4f8ba6b8eee9c2f612cd046b34905cd110ec1b12
Link:
https://www.unpac.me/results/17e44085-ed97-4c5f-bf0c-17f5326642ec/
Malware family:
XLoader
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/25773608894e/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.65
Link:
https://yomi.yoroi.company/submissions/25773608894ed7dced5dd50dc02483ffdd6d9ee3d79333aa8292c5d2a2586e21

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:exploit_any_poppopret
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Author:Jeff White [karttoon@gmail.com] @noottrak
Description:Identify POP -> POP -> RET opcodes for quick ROP Gadget creation in target binaries.
Rule name:pe_imphash
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Rule name:Skystars_Malware_Imphash
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Author:Skystars LightDefender
Description:imphash

File information

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

Web download

Formbook

Executable exe 25773608894ed7dced5dd50dc02483ffdd6d9ee3d79333aa8292c5d2a2586e21

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2246325/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/281905/

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