MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e4999525a5626a76247a8f02a9e08c0ea35f13f717687b8a966cddb72f8adc6f. 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: e4999525a5626a76247a8f02a9e08c0ea35f13f717687b8a966cddb72f8adc6f
SHA3-384 hash: f74a707211d98dca1a72d2514ecfdc59071cab25a576ef6bec3f47c98676806a18e5e4abe011a4ef30fa00ba27facb94
SHA1 hash: fb5f6fcb930c10abef806138d2839bff3247f973
MD5 hash: 50376d0b1e8512f7181eff0d87feb534
humanhash: black-blue-music-massachusetts
File name:50376d0b1e8512f7181eff0d87feb534
Download: download sample
Signature Formbook
Create hunting rule
File size:374'784 bytes
First seen:2022-01-12 10:05:35 UTC
Last seen:2022-01-12 13:08:10 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 6144:eBTWOarDjnHyWrGC6E5gY6nN9h7KhlzgcgX23W8CxowEAIvpwsV4hhFm:7PjHMkh6hKhlkPG3W8CxowmBjgy
TLSH T1F084121523B8CB3ED62D07F9AFA542308BB1E2493522E78E49C4F1DD2D437564246BBB
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence

File Origin
# of uploads :
3
# of downloads :
227
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
PROFORMA INVOICE.xlsx
Verdict:
Malicious activity
Analysis date:
2022-01-12 09:06:47 UTC
Tags:
encrypted opendir exploit CVE-2017-11882 loader trojan formbook stealer
Link:
https://app.any.run/tasks/7e48dbfe-f327-446a-a3e3-c3445d40987b

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/218670/
Detection(s):
SecuriteInfo.com.Scr.Malcodegdn30.30507.13121.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
DNS request
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Сreating synchronization primitives
Creating a process from a recently created file
Creating a process with a hidden window
Creating a file in the %temp% directory
Launching a process
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/db8c6c21-095a-4e82-bd84-1cc7f127d629
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/919124
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
C2 URLs / IPs found in malware configuration
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)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Powershell Defender Exclusion
Sigma detected: Suspicius Add Task From User AppData Temp
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 sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 551602 Sample: jJMJsBJdLa Startdate: 12/01/2022 Architecture: WINDOWS Score: 100 43 www.hzy001.xyz 2->43 45 www.cozastore.net 2->45 53 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->53 55 Found malware configuration 2->55 57 Malicious sample detected (through community Yara rule) 2->57 59 13 other signatures 2->59 9 jJMJsBJdLa.exe 7 2->9         started        signatures3 process4 file5 35 C:\Users\user\AppData\...\eEkpoxtGLuQ.exe, PE32 9->35 dropped 37 C:\Users\...\eEkpoxtGLuQ.exe:Zone.Identifier, ASCII 9->37 dropped 39 C:\Users\user\AppData\Local\...\tmpB225.tmp, XML 9->39 dropped 41 C:\Users\user\AppData\...\jJMJsBJdLa.exe.log, ASCII 9->41 dropped 65 Uses schtasks.exe or at.exe to add and modify task schedules 9->65 67 Adds a directory exclusion to Windows Defender 9->67 69 Tries to detect virtualization through RDTSC time measurements 9->69 71 Injects a PE file into a foreign processes 9->71 13 jJMJsBJdLa.exe 9->13         started        16 powershell.exe 24 9->16         started        18 schtasks.exe 1 9->18         started        20 jJMJsBJdLa.exe 9->20         started        signatures6 process7 signatures8 73 Modifies the context of a thread in another process (thread injection) 13->73 75 Maps a DLL or memory area into another process 13->75 77 Sample uses process hollowing technique 13->77 79 Queues an APC in another process (thread injection) 13->79 22 explorer.exe 13->22 injected 26 conhost.exe 16->26         started        28 conhost.exe 18->28         started        process9 dnsIp10 47 www.comment-changer-sa-vie.com 154.196.7.103, 49818, 80 SKHT-ASShenzhenKatherineHengTechnologyInformationCo Seychelles 22->47 49 www.10dian-4.com 104.37.215.24, 49775, 80 PEGTECHINCUS United States 22->49 51 11 other IPs or domains 22->51 61 System process connects to network (likely due to code injection or exploit) 22->61 63 Performs DNS queries to domains with low reputation 22->63 30 help.exe 22->30         started        33 autofmt.exe 22->33         started        signatures11 process12 signatures13 81 Modifies the context of a thread in another process (thread injection) 30->81 83 Maps a DLL or memory area into another process 30->83 85 Tries to detect virtualization through RDTSC time measurements 30->85
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/e4999525a5626a76247a8f02a9e08c0ea35f13f717687b8a966cddb72f8adc6f/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-01-12 10:06:14 UTC
File Type:
PE (.Net Exe)
Extracted files:
5
AV detection:
23 of 28 (82.14%)
Threat level:
  5/5
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:nt3f loader rat
Link:
https://tria.ge/reports/220112-l43pgaccck/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Xloader Payload
Xloader
Unpacked files
SH256 hash:
bceba631c03dc405f3d0df6bb72c81ff843dae10de31021501da94540fada4ff
MD5 hash:
5c6a134b9e787020402e700370958611
SHA1 hash:
c69488d46c09bd432255610ed35c88e1dd254951
Link:
https://www.unpac.me/results/b623dfa1-3d7b-4abc-87bc-fd34ee0ceaab/
SH256 hash:
6d6255e43f8c15ac35d75832b1b8ac911010720326488ca424eee3e0566817c6
MD5 hash:
6fbeffefb041ca0248c2873f8f170127
SHA1 hash:
dc99780c9888bd4855c7fb8c75e95921ecd6a96a
Link:
https://www.unpac.me/results/b623dfa1-3d7b-4abc-87bc-fd34ee0ceaab/
SH256 hash:
149fddd6d60737e0e971c03111a4bb582ca16a8f08c838e73371163191cd17d5
MD5 hash:
40056abcdc0a75b7b51b5c08b8db3c07
SHA1 hash:
05eed606a5cd55f7c72de355fd1f7ba753c9ade4
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/b623dfa1-3d7b-4abc-87bc-fd34ee0ceaab/
Parent samples :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 hash:
e4999525a5626a76247a8f02a9e08c0ea35f13f717687b8a966cddb72f8adc6f
MD5 hash:
50376d0b1e8512f7181eff0d87feb534
SHA1 hash:
fb5f6fcb930c10abef806138d2839bff3247f973
Link:
https://www.unpac.me/results/b623dfa1-3d7b-4abc-87bc-fd34ee0ceaab/
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/e4999525a5626a76247a8f02a9e08c0ea35f13f717687b8a966cddb72f8adc6f

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 e4999525a5626a76247a8f02a9e08c0ea35f13f717687b8a966cddb72f8adc6f

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/1970288/
Cape
Cape
https://www.capesandbox.com/analysis/218670/

Comments


Avatar
zbet commented on 2022-01-12 10:05:38 UTC

url : hxxp://34.217.125.80/2033/vbc.exe