MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4baf37305afca03942dfd3f13c173cd45d587cd358adde2b6f1596fc761eaae2. 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: 14


Intelligence 14 IOCs YARA 6 File information Comments 1
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SHA256 hash: 4baf37305afca03942dfd3f13c173cd45d587cd358adde2b6f1596fc761eaae2
SHA3-384 hash: dfa7c75bd00ee0d5e82c92aa8c97de0809ece39c8d9dbad5856f9d7b48b9bd992c3494a803f899e7adc0e8a12ab0d8b4
SHA1 hash: d673a226696423eb7b0c86e7a33d77c71d98ba60
MD5 hash: bd0d2a6e61ecd88a741cc9cbb6d3d8b1
humanhash: tennis-london-oxygen-december
File name:bd0d2a6e61ecd88a741cc9cbb6d3d8b1
Download: download sample
Signature Formbook
Create hunting rule
File size:329'116 bytes
First seen:2022-12-10 09:43:45 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 97318da386948415d08cef4a9006d669 (71 x Formbook, 35 x SnakeKeylogger, 26 x AgentTesla)
ssdeep 6144:9kwumETnd/8h/xTstS2irnAKK6dZV67pyB4T4C7dqOo:Kmgndkh/xAIxjARu8wBmJq9
TLSH T142641219F2E6A4A7C1C1097A8DB3DF6DD3B6E21104A067C76B50CF69CA72BC3850A7D1
TrID 92.7% (.EXE) NSIS - Nullsoft Scriptable Install System (846567/2/133)
3.4% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
1.1% (.EXE) Win64 Executable (generic) (10523/12/4)
0.7% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
0.5% (.EXE) Win16 NE executable (generic) (5038/12/1)
File icon (PE):PE icon
dhash icon b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
189
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
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Link:
https://www.capesandbox.com/analysis/344968/
Detection(s):
SecuriteInfo.com.Trojan.NSISX.Spy.Gen.24.19670.31213.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a file in the %temp% directory
Creating a process from a recently created file
Launching a process
Сreating synchronization primitives
Launching cmd.exe command interpreter
Searching for synchronization primitives
Setting browser functions hooks
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Unauthorized injection to a system process
Unauthorized injection to a browser process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/639454e6485d8463dc41159c/reports/dac6588a-d4fc-4f75-beda-5bfa1e120373/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/2992d85a-8b4b-4436-80dd-8a8168b243af
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1131904
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
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
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Uses netsh to modify the Windows network and firewall settings
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 764626 Sample: UkNH7ZmINT.exe Startdate: 10/12/2022 Architecture: WINDOWS Score: 100 47 Snort IDS alert for network traffic 2->47 49 Multi AV Scanner detection for domain / URL 2->49 51 Malicious sample detected (through community Yara rule) 2->51 53 6 other signatures 2->53 11 UkNH7ZmINT.exe 19 2->11         started        process3 file4 31 C:\Users\user\AppData\Local\Temp\vlzqgy.exe, PE32 11->31 dropped 14 vlzqgy.exe 11->14         started        process5 signatures6 65 Multi AV Scanner detection for dropped file 14->65 67 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 14->67 69 Maps a DLL or memory area into another process 14->69 71 Tries to detect virtualization through RDTSC time measurements 14->71 17 vlzqgy.exe 14->17         started        process7 signatures8 39 Modifies the context of a thread in another process (thread injection) 17->39 41 Maps a DLL or memory area into another process 17->41 43 Sample uses process hollowing technique 17->43 45 Queues an APC in another process (thread injection) 17->45 20 explorer.exe 17->20 injected process9 dnsIp10 33 junkremovalbedford.com 199.34.228.77, 49696, 80 WEEBLYUS United States 20->33 35 dakshaini.com 15.235.156.137, 49695, 80 HP-INTERNET-ASUS United States 20->35 37 2 other IPs or domains 20->37 55 System process connects to network (likely due to code injection or exploit) 20->55 57 Uses netsh to modify the Windows network and firewall settings 20->57 24 netsh.exe 20->24         started        signatures11 process12 signatures13 59 Modifies the context of a thread in another process (thread injection) 24->59 61 Maps a DLL or memory area into another process 24->61 63 Tries to detect virtualization through RDTSC time measurements 24->63 27 cmd.exe 1 24->27         started        process14 process15 29 conhost.exe 27->29         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4baf37305afca03942dfd3f13c173cd45d587cd358adde2b6f1596fc761eaae2/
Threat name:
Win32.Trojan.NSISInject
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Status:
Malicious
First seen:
2022-12-09 22:28:18 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
17 of 26 (65.38%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=joxtomc27sqdsqw72pytyfz42rovq7gtlcw54k3pcwlpy5q6vlra._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:h3ha rat spyware stealer trojan
Link:
https://tria.ge/reports/221210-lqgvvaab4t/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Loads dropped DLL
Executes dropped EXE
Formbook payload
Formbook
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/c968886d-761d-48f2-93eb-75002a869df7
Unpacked files
SH256 hash:
f0944ae44dd0a6582ad85c1fcaa0216326fccc86ebfd859febfae69c8a3062f6
MD5 hash:
7f965d791338f7fc3a4e5c28712c64cc
SHA1 hash:
ab3b6050f9d9fb02132132d1a4011c598e40abec
Detections:
FormBook
Create hunting rule
win_formbook_auto
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win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/2ba21ca4-02c3-4c9e-a519-e3f5f5d8d3b0/
Parent samples :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 hash:
eba635c75b8190e1527a15d2a07f0baab47356055c0c6af9352509533ae528aa
MD5 hash:
218ffebaf3dbfd69c036fffffe096713
SHA1 hash:
fb84c82dda255ed03c5e4c36f96d456594986590
Link:
https://www.unpac.me/results/2ba21ca4-02c3-4c9e-a519-e3f5f5d8d3b0/
SH256 hash:
4baf37305afca03942dfd3f13c173cd45d587cd358adde2b6f1596fc761eaae2
MD5 hash:
bd0d2a6e61ecd88a741cc9cbb6d3d8b1
SHA1 hash:
d673a226696423eb7b0c86e7a33d77c71d98ba60
Link:
https://www.unpac.me/results/2ba21ca4-02c3-4c9e-a519-e3f5f5d8d3b0/
Malware family:
FormBook
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/4baf37305afc/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.18
Link:
https://yomi.yoroi.company/submissions/4baf37305afca03942dfd3f13c173cd45d587cd358adde2b6f1596fc761eaae2

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:azov_Dropped
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Author:Potatech
Description:Azov Detection
Rule name:meth_get_eip
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Author:Willi Ballenthin
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:Windows_Trojan_Formbook
Create hunting rule
Author:@malgamy12
Rule name:Windows_Trojan_Formbook_1112e116
Create hunting rule
Author:Elastic Security
Rule name:win_formbook_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.formbook.

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

Formbook

Executable exe 4baf37305afca03942dfd3f13c173cd45d587cd358adde2b6f1596fc761eaae2

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2453391/
Cape
Cape
https://www.capesandbox.com/analysis/344968/

Comments


Avatar
zbet commented on 2022-12-10 09:43:47 UTC

url : hxxps://www.avti.org.in/noicv2.1.exe