MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e433cde831e792acecea6b52f79f62d5b0c94db1acc016359f61e9c3150c144e. 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: 11


Intelligence 11 IOCs YARA 2 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: e433cde831e792acecea6b52f79f62d5b0c94db1acc016359f61e9c3150c144e
SHA3-384 hash: edcf1f22bc42dfe32660a0550a45345cf5f5e1506d770c3ac73543a9ede42fd523a81880a5ec35eba60a1aff72c53c6c
SHA1 hash: 0950b451c431411ca87696c3210e6188a5ef8f95
MD5 hash: 98169823ecba099d103598372ef3f970
humanhash: bravo-timing-skylark-nebraska
File name:98169823ecba099d103598372ef3f970
Download: download sample
Signature Formbook
Create hunting rule
File size:161'792 bytes
First seen:2022-05-11 22:09:03 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'658 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 768:UyruI3bII0Q41Y7pOdaPm7z24hMMUcwIeuatsOMoMpY62h+f6XgZPGR:UySI3bII0x20MMUDjaxoMegfGR
TLSH T110F30CB4B6D0A917D030C23748924ECB12FC9D506AA2161EED847727D8F1EDA7945EF3
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 33cc9af2f29acc33 (2 x Formbook, 1 x CobaltStrike, 1 x LummaStealer)
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
368
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/269779/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending an HTTP GET request
Running batch commands
Launching cmd.exe command interpreter
Сreating synchronization primitives
Launching a process
Creating a process with a hidden window
Sending a custom TCP request
DNS request
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/627c340c4b517e213c2c157c/reports/ae073075-1a24-46aa-8ab6-1a1c951964e2/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
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/752383ce-1625-48bd-89e2-dabcd9faa4ef
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/992230
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
Encrypted powershell cmdline option found
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)
Modifies the prolog of user mode functions (user mode inline hooks)
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: 624726 Sample: VteXkNu70C Startdate: 12/05/2022 Architecture: WINDOWS Score: 100 46 Snort IDS alert for network traffic 2->46 48 Multi AV Scanner detection for domain / URL 2->48 50 Found malware configuration 2->50 52 10 other signatures 2->52 9 VteXkNu70C.exe 15 7 2->9         started        process3 dnsIp4 44 alexochemicals.cf 192.185.174.177, 49760, 80 UNIFIEDLAYER-AS-1US United States 9->44 38 C:\Users\user\AppData\...\Sadanyfed.exe, PE32 9->38 dropped 40 C:\Users\...\Sadanyfed.exe:Zone.Identifier, ASCII 9->40 dropped 42 C:\Users\user\AppData\...\VteXkNu70C.exe.log, ASCII 9->42 dropped 60 Creates an undocumented autostart registry key 9->60 62 Encrypted powershell cmdline option found 9->62 64 Writes to foreign memory regions 9->64 66 Injects a PE file into a foreign processes 9->66 14 MSBuild.exe 9->14         started        17 cmd.exe 1 9->17         started        19 powershell.exe 15 9->19         started        file5 signatures6 process7 signatures8 68 Modifies the context of a thread in another process (thread injection) 14->68 70 Maps a DLL or memory area into another process 14->70 72 Sample uses process hollowing technique 14->72 74 2 other signatures 14->74 21 wlanext.exe 14->21         started        24 explorer.exe 14->24 injected 26 conhost.exe 17->26         started        28 timeout.exe 1 17->28         started        30 conhost.exe 19->30         started        process9 signatures10 54 Modifies the context of a thread in another process (thread injection) 21->54 56 Maps a DLL or memory area into another process 21->56 58 Tries to detect virtualization through RDTSC time measurements 21->58 32 cmd.exe 1 21->32         started        34 autofmt.exe 24->34         started        process11 process12 36 conhost.exe 32->36         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/e433cde831e792acecea6b52f79f62d5b0c94db1acc016359f61e9c3150c144e/
Threat name:
ByteCode-MSIL.Downloader.PsDownload
Create hunting rule
Status:
Malicious
First seen:
2022-05-11 20:29:57 UTC
File Type:
PE (.Net Exe)
Extracted files:
17
AV detection:
17 of 26 (65.38%)
Threat level:
  3/5
Verdict:
malicious
Label(s):
formbook
Create hunting rule
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/220511-13ch8aaga7/
Behaviour
Delays execution with timeout.exe
Gathers network information
Suspicious behavior: EnumeratesProcesses
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:
e433cde831e792acecea6b52f79f62d5b0c94db1acc016359f61e9c3150c144e
MD5 hash:
98169823ecba099d103598372ef3f970
SHA1 hash:
0950b451c431411ca87696c3210e6188a5ef8f95
Link:
https://www.unpac.me/results/cd2a7a54-c33c-4e0b-9367-2c469cf86028/
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/e433cde831e792acecea6b52f79f62d5b0c94db1acc016359f61e9c3150c144e

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 e433cde831e792acecea6b52f79f62d5b0c94db1acc016359f61e9c3150c144e

(this sample)

  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/269779/
  
URLhaus
https://urlhaus.abuse.ch/url/2190691/

Comments


Avatar
zbet commented on 2022-05-11 22:09:11 UTC

url : hxxp://107.175.218.12/e/bbc.exe