MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 84617e9b429736d15a45e1d0c75cd39c60b0387168fc9f46bfd4eb8b7e2d50fc. 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: 9


Intelligence 9 IOCs YARA 3 File information Comments 1

SHA256 hash: 84617e9b429736d15a45e1d0c75cd39c60b0387168fc9f46bfd4eb8b7e2d50fc
SHA3-384 hash: 56df088edaa5b67926c776cb9c966c5f98a928616504f62e5b4a3848997e3e91dc0d9f15ea1be829769efb6a67ecdeb6
SHA1 hash: 5c50667f702618200dcae44bf286d8fd00b6425f
MD5 hash: c7ece25f5f2bec6d7287b7a531e14d44
humanhash: delta-wyoming-steak-white
File name:c7ece25f5f2bec6d7287b7a531e14d44
Download: download sample
Signature Formbook
File size:783'360 bytes
First seen:2021-08-12 08:32:28 UTC
Last seen:2021-08-12 10:55:01 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:gAGUhizuXCzXDUOWApOa652CyQLipX5x/vj9Ll:gqhiqSz7mR/+Nvx
Threatray 7'090 similar samples on MalwareBazaar
TLSH T11BF48D7B23DA6BFEC9B492F91010109356F298151826DA6F7CFDF2CD28647610B398E7
dhash icon 62e5a430fa7ebc58 (2 x AZORult, 2 x Formbook, 1 x SnakeKeylogger)
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence


File Origin
# of uploads :
2
# of downloads :
287
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
12.08.eml
Verdict:
Malicious activity
Analysis date:
2021-08-12 07:10:15 UTC
Tags:
loader trojan formbook stealer

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
DNS request
Connection attempt
Sending a custom TCP request
Creating a window
Unauthorized injection to a recently created process
Sending a UDP request
Creating a file
Launching the default Windows debugger (dwwin.exe)
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.
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
.NET source code contains very large array initializations
C2 URLs / IPs found in malware configuration
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
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 submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
Sigma detected: Suspicious Process Start Without DLL
Sigma detected: Suspicious Rundll32 Without Any CommandLine Params
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 464016 Sample: rZJ9NY4suK Startdate: 12/08/2021 Architecture: WINDOWS Score: 100 34 www.ruixinrj.com 2->34 36 www.livingmadenatural.com 2->36 38 ext-sq.squarespace.com 2->38 56 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->56 58 Found malware configuration 2->58 60 Malicious sample detected (through community Yara rule) 2->60 62 8 other signatures 2->62 11 rZJ9NY4suK.exe 15 4 2->11         started        signatures3 process4 dnsIp5 46 www.google.com 172.217.168.68, 443, 49706 GOOGLEUS United States 11->46 32 C:\Users\user\AppData\...\rZJ9NY4suK.exe.log, ASCII 11->32 dropped 72 Tries to detect virtualization through RDTSC time measurements 11->72 74 Hides that the sample has been downloaded from the Internet (zone.identifier) 11->74 76 Injects a PE file into a foreign processes 11->76 16 rZJ9NY4suK.exe 11->16         started        19 conhost.exe 11->19         started        file6 signatures7 process8 signatures9 48 Modifies the context of a thread in another process (thread injection) 16->48 50 Maps a DLL or memory area into another process 16->50 52 Sample uses process hollowing technique 16->52 54 Queues an APC in another process (thread injection) 16->54 21 explorer.exe 16->21 injected process10 dnsIp11 40 sltplanner.com 95.142.10.213, 49735, 80 IDHEquinixConnect-IberiaES Spain 21->40 42 shops.myshopify.com 23.227.38.74, 49736, 80 CLOUDFLARENETUS Canada 21->42 44 13 other IPs or domains 21->44 64 System process connects to network (likely due to code injection or exploit) 21->64 25 rundll32.exe 21->25         started        signatures12 process13 signatures14 66 Modifies the context of a thread in another process (thread injection) 25->66 68 Maps a DLL or memory area into another process 25->68 70 Tries to detect virtualization through RDTSC time measurements 25->70 28 cmd.exe 1 25->28         started        process15 process16 30 conhost.exe 28->30         started       
Threat name:
ByteCode-MSIL.Backdoor.NetWiredRc
Status:
Malicious
First seen:
2021-08-12 08:01:59 UTC
AV detection:
14 of 46 (30.43%)
Threat level:
  5/5
Result
Malware family:
xloader
Score:
  10/10
Tags:
family:xloader campaign:niot loader rat
Behaviour
Modifies system certificate store
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of SetThreadContext
Xloader Payload
Xloader
Malware Config
C2 Extraction:
http://www.daisypaperstudio.com/niot/
Unpacked files
SH256 hash:
84617e9b429736d15a45e1d0c75cd39c60b0387168fc9f46bfd4eb8b7e2d50fc
MD5 hash:
c7ece25f5f2bec6d7287b7a531e14d44
SHA1 hash:
5c50667f702618200dcae44bf286d8fd00b6425f
Please note that we are no longer able to provide a coverage score for Virus Total.

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
Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
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 84617e9b429736d15a45e1d0c75cd39c60b0387168fc9f46bfd4eb8b7e2d50fc

(this sample)

  
Delivery method
Distributed via web download

Comments



Avatar
zbet commented on 2021-08-12 08:32:29 UTC

url : hxxp://37.0.10.83/cxx/sww.exe