MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e4d421272de2ddd133a8d38329971f4c2a2f13f348c25cc2c560287b463099f1. 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: 13


Intelligence 13 IOCs YARA 2 File information Comments
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SHA256 hash: e4d421272de2ddd133a8d38329971f4c2a2f13f348c25cc2c560287b463099f1
SHA3-384 hash: eb8169a68b64ad2935e73848e70080d16f5afb5e009db5e6fe3d0bdce421d7c3b4e338dc81b4a5498d087a8d16ffc053
SHA1 hash: b9b8c9854b605db60075995a34457ad72d553fd8
MD5 hash: b2b206cefb6012049c686be9c22b7b46
humanhash: william-chicken-washington-uranus
File name:triage_dropped_file
Download: download sample
Signature Formbook
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File size:463'653 bytes
First seen:2022-03-24 13:37:05 UTC
Last seen:2022-03-24 15:54:29 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 7fa974366048f9c551ef45714595665e (946 x Formbook, 398 x Loki, 261 x AgentTesla)
ssdeep 12288:TG9rT1s3qkxkkR0Rh659ZPIAc10Uz76oKcLb:y9rT1/Ta0RMJPNUz7/H
TLSH T177A4E0D2D58085EAFCA85F72A4338C2A16B76E7EBDF1A44E5A5C75712B732D30027807
File icon (PE):PE icon
dhash icon 7909199905110105 (2 x Formbook)
Reporter malwarelabnet
Tags:exe FormBook xloader

Intelligence

File Origin
# of uploads :
2
# of downloads :
239
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
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Link:
https://www.capesandbox.com/analysis/257171/
Detection(s):
SecuriteInfo.com.Variant.Jaik.52748.3278.4612.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Creating a file in the %temp% directory
Creating a process from a recently created file
Сreating synchronization primitives
Searching for synchronization primitives
Launching a process
Launching cmd.exe command interpreter
DNS request
Sending an HTTP GET request
Unauthorized injection to a recently created process by context flags manipulation
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
control.exe overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/623c74400cd58dbd92e72523/reports/2405417d-697c-474f-b0f4-62b13a8aada2/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/79cadde9-c2fa-43d3-8b02-897f60e0988e
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/963757
Signature
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)
Found malware configuration
Injects a PE file into a foreign processes
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
Tries to detect virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 596238 Sample: triage_dropped_file Startdate: 24/03/2022 Architecture: WINDOWS Score: 100 38 www.oprimaelnumerodos.net 2->38 40 oprimaelnumerodos.net 2->40 50 Found malware configuration 2->50 52 Malicious sample detected (through community Yara rule) 2->52 54 Multi AV Scanner detection for submitted file 2->54 56 2 other signatures 2->56 12 triage_dropped_file.exe 18 2->12         started        signatures3 process4 file5 34 C:\Users\user\AppData\Local\...\wjevcqai.exe, PE32 12->34 dropped 36 C:\Users\user\AppData\...\emieokxe6r67aazwz, DOS 12->36 dropped 15 wjevcqai.exe 12->15         started        process6 signatures7 62 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 15->62 64 Tries to detect virtualization through RDTSC time measurements 15->64 66 Injects a PE file into a foreign processes 15->66 18 wjevcqai.exe 15->18         started        21 wuapihost.exe 15->21         started        process8 signatures9 42 Modifies the context of a thread in another process (thread injection) 18->42 44 Maps a DLL or memory area into another process 18->44 46 Sample uses process hollowing technique 18->46 48 Queues an APC in another process (thread injection) 18->48 23 explorer.exe 18->23 injected process10 process11 25 msiexec.exe 23->25         started        signatures12 58 Modifies the context of a thread in another process (thread injection) 25->58 60 Maps a DLL or memory area into another process 25->60 28 cmd.exe 1 25->28         started        30 explorer.exe 2 171 25->30         started        process13 process14 32 conhost.exe 28->32         started       
Detection:
formbook
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Link:
https://mwdb.cert.pl/sample/e4d421272de2ddd133a8d38329971f4c2a2f13f348c25cc2c560287b463099f1/
Threat name:
Win32.Trojan.SpyNoon
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Status:
Malicious
First seen:
2022-03-24 13:38:11 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
18 of 25 (72.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=4tkccjzn4lo5cm5i2obstfy7jqvc6e7tjdbfzqwfmauhwrrqthyq._file
Verdict:
malicious
Label(s):
formbook
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Result
Malware family:
xloader
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Score:
  10/10
Tags:
family:xloader campaign:gqav loader rat suricata
Link:
https://tria.ge/reports/220324-qxdtzseddn/
Behaviour
Gathers network information
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
Xloader Payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
e4d421272de2ddd133a8d38329971f4c2a2f13f348c25cc2c560287b463099f1
MD5 hash:
b2b206cefb6012049c686be9c22b7b46
SHA1 hash:
b9b8c9854b605db60075995a34457ad72d553fd8
Link:
https://www.unpac.me/results/d97d8da0-9aeb-4a2b-b202-190d508a84d2/
Malware family:
XLoader
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/e4d421272de2/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/e4d421272de2ddd133a8d38329971f4c2a2f13f348c25cc2c560287b463099f1

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:malware_Formbook_strings
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Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
Rule name:win_formbook_auto
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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 e4d421272de2ddd133a8d38329971f4c2a2f13f348c25cc2c560287b463099f1

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/257171/
  
URLhaus
https://urlhaus.abuse.ch/url/2114286/
  
Delivery method
Distributed via web download

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