MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3b7c3cdf465e6e8113140b3e109a4ce242feefefd8c215d2237b1aeefee47834. 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: 16


Intelligence 16 IOCs YARA 2 File information Comments 1
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SHA256 hash: 3b7c3cdf465e6e8113140b3e109a4ce242feefefd8c215d2237b1aeefee47834
SHA3-384 hash: fff0c0f52e72b3705b1ca43ccf40afe0093eef12f76a7cdb7babc9c516b9849737cbeaef170f7c652c98c5494f8a413a
SHA1 hash: 5d8c497686610229c4f0ea73aa3fe87cad0738e6
MD5 hash: fdad8decf7e56d9436e601b936436bcf
humanhash: georgia-black-idaho-wyoming
File name:fdad8decf7e56d9436e601b936436bcf
Download: download sample
Signature Formbook
Create hunting rule
File size:38'912 bytes
First seen:2022-06-15 03:07:13 UTC
Last seen:2022-06-15 03:38:02 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'608 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 768:m8xmpgbtXKfKuMo19Nf7oSFYwQjXvLWRgcL0ST8iNxy2p:VxmpgbBKAAf97QWRgcL9HNxvp
TLSH T10E03BF59BB6E8A39D9F1073EB463C70047B473638D139B7FA44062463D2AF9DCA472A4
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 b28ccaacda53d39b (34 x Formbook, 1 x BitRAT, 1 x SnakeKeylogger)
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
286
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
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ID:
1
File name:
PO_179-1121-264-22.xlsx
Verdict:
Malicious activity
Analysis date:
2022-06-15 00:59:51 UTC
Tags:
encrypted opendir exploit CVE-2017-11882 loader formbook trojan stealer
Link:
https://app.any.run/tasks/464db2f7-cf22-48fa-a91f-3dbaf544f4a3

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/280010/
Detection(s):
SecuriteInfo.com.Trojan.Siggen18.7834.1034.16924.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Launching a process
Sending a custom TCP request
Сreating synchronization primitives
DNS request
Sending an HTTP GET request
Running batch commands
Creating a process with a hidden window
Creating a file in the %AppData% subdirectories
Creating a file
Searching for synchronization primitives
Launching cmd.exe command interpreter
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed wacatac
Link:
https://www.filescan.io/uploads/62a94cf33c52ddca42d9dafb/reports/bb57d3a9-a930-4f20-8af1-7924bba1eaa2/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/bde85e08-55a1-4242-ba92-3e612b4d04d4
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1013379
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
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)
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
Writes to foreign memory regions
Yara detected Costura Assembly Loader
Yara detected FormBook
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 645875 Sample: z1Yw6He15H Startdate: 15/06/2022 Architecture: WINDOWS Score: 100 57 Snort IDS alert for network traffic 2->57 59 Malicious sample detected (through community Yara rule) 2->59 61 Antivirus detection for URL or domain 2->61 63 10 other signatures 2->63 10 z1Yw6He15H.exe 15 7 2->10         started        process3 dnsIp4 55 toesbv.ga 192.185.174.189, 49754, 80 UNIFIEDLAYER-AS-1US United States 10->55 43 C:\Users\user\AppData\...\Wncbkmkui.exe, PE32 10->43 dropped 45 C:\Users\...\Wncbkmkui.exe:Zone.Identifier, ASCII 10->45 dropped 47 C:\Users\user\AppData\...\z1Yw6He15H.exe.log, ASCII 10->47 dropped 73 Creates an undocumented autostart registry key 10->73 75 Writes to foreign memory regions 10->75 77 Injects a PE file into a foreign processes 10->77 15 MSBuild.exe 10->15         started        18 MSBuild.exe 10->18         started        20 cmd.exe 1 10->20         started        22 2 other processes 10->22 file5 signatures6 process7 signatures8 79 Modifies the context of a thread in another process (thread injection) 15->79 81 Maps a DLL or memory area into another process 15->81 83 Sample uses process hollowing technique 15->83 85 Queues an APC in another process (thread injection) 15->85 24 explorer.exe 15->24 injected 87 Tries to detect virtualization through RDTSC time measurements 18->87 28 conhost.exe 20->28         started        30 timeout.exe 1 20->30         started        32 conhost.exe 22->32         started        process9 dnsIp10 49 ballsybanter.com 172.96.185.199, 49841, 80 LEASEWEB-APAC-HKG-10LeasewebAsiaPacificpteltdHK Canada 24->49 51 www.gaylebong.com 38.53.85.251, 49842, 80 COGENT-174US United States 24->51 53 5 other IPs or domains 24->53 71 System process connects to network (likely due to code injection or exploit) 24->71 34 help.exe 24->34         started        37 autoconv.exe 24->37         started        signatures11 process12 signatures13 65 Modifies the context of a thread in another process (thread injection) 34->65 67 Maps a DLL or memory area into another process 34->67 69 Tries to detect virtualization through RDTSC time measurements 34->69 39 cmd.exe 1 34->39         started        process14 process15 41 conhost.exe 39->41         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/3b7c3cdf465e6e8113140b3e109a4ce242feefefd8c215d2237b1aeefee47834/
Threat name:
ByteCode-MSIL.Spyware.Noon
Create hunting rule
Status:
Malicious
First seen:
2022-06-14 16:24:18 UTC
File Type:
PE (.Net Exe)
Extracted files:
6
AV detection:
17 of 26 (65.38%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=hn6dzx2glzxiceyubm7bbgsm4jbp537p3dbblurdpmno57xepa2a._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:s4s9 rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/220615-dmv93aecc5/
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:
3b7c3cdf465e6e8113140b3e109a4ce242feefefd8c215d2237b1aeefee47834
MD5 hash:
fdad8decf7e56d9436e601b936436bcf
SHA1 hash:
5d8c497686610229c4f0ea73aa3fe87cad0738e6
Link:
https://www.unpac.me/results/77920618-1e3a-43f4-87c4-c28d49d97925/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/3b7c3cdf465e/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/3b7c3cdf465e6e8113140b3e109a4ce242feefefd8c215d2237b1aeefee47834

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
Create hunting rule
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 3b7c3cdf465e6e8113140b3e109a4ce242feefefd8c215d2237b1aeefee47834

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2237087/
  
URLhaus
https://urlhaus.abuse.ch/url/2236930/
  
URLhaus
https://urlhaus.abuse.ch/url/2238401/
Cape
Cape
https://www.capesandbox.com/analysis/280010/
  
URLhaus
https://urlhaus.abuse.ch/url/2239330/

Comments


Avatar
zbet commented on 2022-06-15 03:07:20 UTC

url : hxxps://104.168.32.14/g/mmc.exe