MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6524fb6e8bc4b9899da689754b08646d7d1c00187b63df52665b39dae5578b21. 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 2 File information Comments
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SHA256 hash: 6524fb6e8bc4b9899da689754b08646d7d1c00187b63df52665b39dae5578b21
SHA3-384 hash: 0acb13aa95d92ffd72fc8d847cc6c28fb0a789849e691c6f1c9a7dbeef84f7967206d4948f536ddc109f2f7091aaffd4
SHA1 hash: 02b2c9290f1d5ec4ab8c8d2c24af17ef55485f81
MD5 hash: 5354eb8f97d1c4427395833ad94bcc40
humanhash: papa-mississippi-vermont-single
File name:5354eb8f97d1c4427395833ad94bcc40.exe
Download: download sample
Signature Formbook
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File size:148'480 bytes
First seen:2022-05-10 11:32:30 UTC
Last seen:2022-05-10 12:52:06 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 1536:UggNgc/BFuAb+gggggggggggggggBggmwwwwwIwwwwwwwwwwwwwwwwwK4AROuww/:OHBFuV4A0RWq64RKCik4
TLSH T145E3C64A1A24D2FCCD25127066EED13C55EEAEB7CCF55CD99CEA9DAB31E220C100E0B5
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 d39393b0d2d0e4ca (1 x Formbook)
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
230
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
5354eb8f97d1c4427395833ad94bcc40.exe
Verdict:
Malicious activity
Analysis date:
2022-05-10 11:37:01 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/06669848-1394-40af-8ee6-5ddce9f7d2a5

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/269402/
Detection(s):
SecuriteInfo.com.Trojan.DownloaderNET.378.7182.24809.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
DNS request
Sending an HTTP GET request
Running batch commands
Creating a process with a hidden window
Launching a process
Creating a file in the %AppData% subdirectories
Creating a file
Launching cmd.exe command interpreter
Searching for synchronization primitives
Setting browser functions hooks
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
Link:
https://www.filescan.io/uploads/627a4d57b119a5f609b729d7/reports/2867ea49-709e-42d7-8e16-46ae2a50caf0/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.
Malware family:
Formbook
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/73723e9f-891b-428e-9fa3-9459e73963e7
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/991265
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Creates an undocumented autostart registry key
Found 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 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
Uses netsh to modify the Windows network and firewall settings
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 623764 Sample: 4LiYZgg0OK.exe Startdate: 10/05/2022 Architecture: WINDOWS Score: 100 42 Snort IDS alert for network traffic 2->42 44 Multi AV Scanner detection for domain / URL 2->44 46 Found malware configuration 2->46 48 7 other signatures 2->48 10 4LiYZgg0OK.exe 15 7 2->10         started        process3 dnsIp4 40 rocksolidfab.ga 192.185.174.180, 49750, 80 UNIFIEDLAYER-AS-1US United States 10->40 36 C:\Users\user\AppData\Roaming\...\Ymsmkru.exe, PE32 10->36 dropped 38 C:\Users\user\AppData\...\4LiYZgg0OK.exe.log, ASCII 10->38 dropped 56 Creates an undocumented autostart registry key 10->56 58 Writes to foreign memory regions 10->58 60 Injects a PE file into a foreign processes 10->60 15 MSBuild.exe 10->15         started        18 cmd.exe 1 10->18         started        file5 signatures6 process7 signatures8 62 Modifies the context of a thread in another process (thread injection) 15->62 64 Maps a DLL or memory area into another process 15->64 66 Sample uses process hollowing technique 15->66 68 2 other signatures 15->68 20 explorer.exe 15->20 injected 23 conhost.exe 18->23         started        25 timeout.exe 1 18->25         started        process9 signatures10 50 Uses netsh to modify the Windows network and firewall settings 20->50 27 netsh.exe 20->27         started        30 autochk.exe 20->30         started        process11 signatures12 52 Maps a DLL or memory area into another process 27->52 54 Tries to detect virtualization through RDTSC time measurements 27->54 32 cmd.exe 1 27->32         started        process13 process14 34 conhost.exe 32->34         started       
Detection:
formbook
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Link:
https://mwdb.cert.pl/sample/6524fb6e8bc4b9899da689754b08646d7d1c00187b63df52665b39dae5578b21/
Threat name:
ByteCode-MSIL.Backdoor.NanoBot
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Status:
Malicious
First seen:
2022-05-10 05:25:54 UTC
File Type:
PE (.Net Exe)
Extracted files:
16
AV detection:
19 of 26 (73.08%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=muspw3ulys4ythngrf2uwcdenv6ryaaypnr56utglm45vzkxrmqq._file
Verdict:
malicious
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/220510-nnwx4abeaq/
Behaviour
Delays execution with timeout.exe
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
Formbook Payload
Formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
6524fb6e8bc4b9899da689754b08646d7d1c00187b63df52665b39dae5578b21
MD5 hash:
5354eb8f97d1c4427395833ad94bcc40
SHA1 hash:
02b2c9290f1d5ec4ab8c8d2c24af17ef55485f81
Link:
https://www.unpac.me/results/dc19cfea-9b7a-46cf-b8e9-854ae8a97261/
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/6524fb6e8bc4b9899da689754b08646d7d1c00187b63df52665b39dae5578b21

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:pe_imphash
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Rule name:Skystars_Malware_Imphash
Create hunting rule
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 6524fb6e8bc4b9899da689754b08646d7d1c00187b63df52665b39dae5578b21

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2186971/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2186133/
Cape
Cape
https://www.capesandbox.com/analysis/269402/

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