MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b78667f1cef6431d75363f045981883b31b0e10925b4218b392c3fa5f044735e. 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: 12


Intelligence 12 IOCs YARA 3 File information Comments 1
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SHA256 hash: b78667f1cef6431d75363f045981883b31b0e10925b4218b392c3fa5f044735e
SHA3-384 hash: 441b860288dad87cc8d31e09acf12c11d8a90a9a7acf1a72295d6c083ed4d79f60d4498bf249ebf737e0651ccdfd7353
SHA1 hash: 172f798d28dbb50461ef82943fad11ecd23484b7
MD5 hash: ca70d06c9f499992da75b3410a2b02e1
humanhash: september-beer-gee-black
File name:ca70d06c9f499992da75b3410a2b02e1
Download: download sample
Signature Formbook
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File size:108'544 bytes
First seen:2022-05-06 16:50:58 UTC
Last seen:2022-05-06 17:37:51 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'607 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 1536:+RhMy8sSsL/9RI5s+ByS23rKBtg2R7qiDXj4f6NN7:ZyHSqRAsOySSKj3cGZ
Threatray 15'388 similar samples on MalwareBazaar
TLSH T11FB3071175189496D92B30F3EC22D8E611B43D594E941A1F30F6BF2E78722A3CE9BD2D
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon 934713b2f9c7de17 (1 x Formbook)
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
774
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
ca70d06c9f499992da75b3410a2b02e1
Verdict:
Malicious activity
Analysis date:
2022-05-06 16:59:39 UTC
Tags:
formbook trojan stealer
Link:
https://app.any.run/tasks/080352de-4d4b-499d-b54d-f993ad686292

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/269166/
Detection(s):
SecuriteInfo.com.Trojan.DownloaderNET.376.393.1719.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Running batch commands
Creating a process with a hidden window
Launching a process
Creating a file
Launching cmd.exe command interpreter
Searching for synchronization primitives
Setting browser functions hooks
Query of malicious DNS domain
Sending an HTTP GET request to an infection source
Enabling autorun by creating a file
Unauthorized injection to a system process
Unauthorized injection to a browser process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/6275522788fc24c43dda2a97/reports/f7805150-ebe9-429f-8921-51f377d55017/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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/dc30c04a-2e41-4d7d-9cb5-4a9099d9b5cc
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.adwa.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/989227
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Drops PE files to the startup folder
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 domain / URL
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
Tries to detect virtualization through RDTSC time measurements
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 621726 Sample: gj8GD5sxDk Startdate: 06/05/2022 Architecture: WINDOWS Score: 100 67 Snort IDS alert for network traffic 2->67 69 Multi AV Scanner detection for domain / URL 2->69 71 Found malware configuration 2->71 73 8 other signatures 2->73 10 gj8GD5sxDk.exe 15 6 2->10         started        15 Xyzdffvcc.exe 14 4 2->15         started        process3 dnsIp4 55 msspaper.cf 192.185.174.189, 49750, 49779, 80 UNIFIEDLAYER-AS-1US United States 10->55 49 C:\Users\user\AppData\...\Xyzdffvcc.exe, PE32 10->49 dropped 51 C:\Users\...\Xyzdffvcc.exe:Zone.Identifier, ASCII 10->51 dropped 53 C:\Users\user\AppData\...\gj8GD5sxDk.exe.log, ASCII 10->53 dropped 77 Drops PE files to the startup folder 10->77 79 Writes to foreign memory regions 10->79 81 Injects a PE file into a foreign processes 10->81 17 MSBuild.exe 10->17         started        20 cmd.exe 1 10->20         started        57 192.168.2.1 unknown unknown 15->57 22 MSBuild.exe 15->22         started        24 cmd.exe 1 15->24         started        file5 signatures6 process7 signatures8 59 Modifies the context of a thread in another process (thread injection) 17->59 61 Maps a DLL or memory area into another process 17->61 63 Sample uses process hollowing technique 17->63 65 2 other signatures 17->65 26 explorer.exe 17->26 injected 28 conhost.exe 20->28         started        30 timeout.exe 1 20->30         started        32 conhost.exe 24->32         started        34 timeout.exe 1 24->34         started        process9 process10 36 WWAHost.exe 26->36         started        39 help.exe 26->39         started        41 autofmt.exe 26->41         started        43 autoconv.exe 26->43         started        signatures11 75 Tries to detect virtualization through RDTSC time measurements 36->75 45 cmd.exe 1 36->45         started        process12 process13 47 conhost.exe 45->47         started       
Detection:
formbook
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Link:
https://mwdb.cert.pl/sample/b78667f1cef6431d75363f045981883b31b0e10925b4218b392c3fa5f044735e/
Threat name:
ByteCode-MSIL.Trojan.FormBook
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Status:
Malicious
First seen:
2022-05-06 05:40:33 UTC
File Type:
PE (.Net Exe)
Extracted files:
12
AV detection:
15 of 26 (57.69%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
00d086794b0b9ed430180b595734faa55317c0b09b632e767f30824de16f0692
Formbook
1799e80fe0e05e3e784de5536df1713309a3b345ea3dbd920acfff477735afbd
Formbook
3662913e3004f6e3811499a9877265b55fd4b99400607d2f4b4168dc2621f1ab
Formbook
4f2730e36986a49109b5d4d6cb0c08aab6bdff7b2e483a3a3cdc5fdd7cd9aac4
Formbook
67435f426cc9f3036d38b4af360f5fc7a4ea547a3e93eccbdf0425718e174dd8
Formbook
7af1842cdbd37f5e68d3d90350fdafe36d78cb62dee2fbcb2a4a4a9184b8d95c
Formbook
90c16547e527be04c7fbea515f8dcea9f00353bf4394ecd45f891ab07085b575
Formbook
bc09ecf5cb6364f4d053ec0420282fa6e7a1649a8a5ca2af2ca933aa27f8b90c
Formbook
f5e1e8da9d4851458ac58902851655cf303ec05cfb4406f49217e8e5235986f7
Formbook
+ 15'378 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:s4s9 rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/220506-vcs6dschej/
Behaviour
Delays execution with timeout.exe
Gathers network information
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
Checks computer location settings
Drops startup file
Formbook Payload
Formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
b78667f1cef6431d75363f045981883b31b0e10925b4218b392c3fa5f044735e
MD5 hash:
ca70d06c9f499992da75b3410a2b02e1
SHA1 hash:
172f798d28dbb50461ef82943fad11ecd23484b7
Link:
https://www.unpac.me/results/5faf1c90-0bf6-4998-88bf-f93b1678c4b0/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b78667f1cef6/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.35
Link:
https://yomi.yoroi.company/submissions/b78667f1cef6431d75363f045981883b31b0e10925b4218b392c3fa5f044735e

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:INDICATOR_EXE_Packed_SmartAssembly
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Author:ditekSHen
Description:Detects executables packed with SmartAssembly
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 b78667f1cef6431d75363f045981883b31b0e10925b4218b392c3fa5f044735e

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2179489/
  
URLhaus
https://urlhaus.abuse.ch/url/2178148/
  
URLhaus
https://urlhaus.abuse.ch/url/2182609/
Cape
Cape
https://www.capesandbox.com/analysis/269166/

Comments


Avatar
zbet commented on 2022-05-06 16:51:02 UTC

url : hxxp://107.175.3.53/h/rtf.exe