MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5a8455f269d1c9db4c93fc09554a32f25b865bd151cb587d88a37ec961d42df3. 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: 10


Intelligence 10 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 5a8455f269d1c9db4c93fc09554a32f25b865bd151cb587d88a37ec961d42df3
SHA3-384 hash: 8dbe4695f453ede02483b2d104b148986b690598b43667b065e4b65ea6e2fdfb3ecc622ae599e931b463e21583b90d79
SHA1 hash: fff586787b83a896dc432a2fef5bb67a0adad608
MD5 hash: bb90c7a685d8eea82ec1dfe87aa30074
humanhash: stairway-william-uranus-winter
File name:Pdf_ScanPO01602222.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:183'808 bytes
First seen:2022-02-17 09:17:33 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 768:SxPpb6w2vxNrJuX3aZTkkkY0kkkkkhkkkkkEk+kkkkkkkkkkkkkkkkkkkkkxkkk+:Eb6BPduX3aya2
Threatray 13'558 similar samples on MalwareBazaar
TLSH T12B0442937EDDED64CCE545BD1D098FBACD1EBDCE489A94B934C0360A26317788BC094A
File icon (PE):PE icon
dhash icon b464ece4f4d0d8c4 (1 x Formbook, 1 x AgentTesla)
Reporter pr0xylife
Tags:exe FormBook xloader

Intelligence

File Origin
# of uploads :
1
# of downloads :
250
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/242199/
Detection(s):
SecuriteInfo.com.Trojan.Downloader.10124.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Running batch commands
Creating a process with a hidden window
Launching a process
DNS request
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/620e12cfac8ad0468b4aef6f/reports/68bd97cf-315a-4c0f-afe3-14eb4529a5e6/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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/26fe46aa-7c81-461b-af67-8651773d4dfb
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/941465
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
Initial sample is a PE file and has a suspicious name
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 domain / URL
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Tries to detect virtualization through RDTSC time measurements
Uses ping.exe to check the status of other devices and networks
Yara detected Costura Assembly Loader
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 573943 Sample: Pdf_ScanPO01602222.exe Startdate: 17/02/2022 Architecture: WINDOWS Score: 100 54 Multi AV Scanner detection for domain / URL 2->54 56 Found malware configuration 2->56 58 Malicious sample detected (through community Yara rule) 2->58 60 8 other signatures 2->60 7 Pdf_ScanPO01602222.exe 15 4 2->7         started        process3 dnsIp4 42 cdn.discordapp.com 162.159.129.233, 443, 49764 CLOUDFLARENETUS United States 7->42 40 C:\Users\user\...\Pdf_ScanPO01602222.exe.log, ASCII 7->40 dropped 62 Tries to detect virtualization through RDTSC time measurements 7->62 64 Injects a PE file into a foreign processes 7->64 12 Pdf_ScanPO01602222.exe 7->12         started        15 cmd.exe 1 7->15         started        17 cmd.exe 1 7->17         started        19 9 other processes 7->19 file5 signatures6 process7 signatures8 66 Modifies the context of a thread in another process (thread injection) 12->66 68 Maps a DLL or memory area into another process 12->68 70 Queues an APC in another process (thread injection) 12->70 21 explorer.exe 12->21 injected 72 Uses ping.exe to check the status of other devices and networks 15->72 23 PING.EXE 1 15->23         started        26 conhost.exe 15->26         started        28 PING.EXE 1 17->28         started        30 conhost.exe 17->30         started        32 PING.EXE 1 19->32         started        34 PING.EXE 1 19->34         started        36 PING.EXE 1 19->36         started        38 13 other processes 19->38 process9 dnsIp10 44 yahoo.com 74.6.143.25 YAHOO-3US United States 23->44 46 192.168.2.1 unknown unknown 23->46 48 74.6.143.26 YAHOO-3US United States 28->48 50 98.137.11.164 YAHOO-GQ1US United States 34->50 52 74.6.231.20 YAHOO-NE1US United States 36->52
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/5a8455f269d1c9db4c93fc09554a32f25b865bd151cb587d88a37ec961d42df3/
Threat name:
ByteCode-MSIL.Trojan.Tnega
Create hunting rule
Status:
Malicious
First seen:
2022-02-16 14:16:41 UTC
File Type:
PE (.Net Exe)
Extracted files:
20
AV detection:
21 of 28 (75.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=lkcfl4tj2he5wtet7qevksrs6jnymw6rkhfvq7miun7msyoufxzq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
1bc7ae65ce4613e96d19dcf560ec6bb47395431ed05480c42895002570c9cb3a
Formbook
4f4d0fe769bd9d316323e290ab9116b5dd95eb7ff5842371f4ff54b2bcc1ae66
Formbook
7cbd8cc35b03d65491ad01b6a44b84dc047e6663189554201c24dbfbeb81473c
Formbook
9bd40dc608fbfece64be8707069dc0284f2b358d2c3a164e326e6e602914d4dc
Formbook
a0498dad46971848cf7b2bde020f6ac1ce8bd8508aaf920a2616063098acd6d2
Formbook
aa067750ad705a1b6176cb6f3f91466c9d5c2ee4457c2466b995bef70c04b240
Formbook
b7cf8d9d8db4c5eaf796d35251bfc2b24f34c2c77d2ca82a1ebf470323c0894f
Formbook
e803c5d292e1684844ff0ac82e76ca90caca1e44e7cd3507ce4ee4507b9d9fb2
Formbook
+ 13'548 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:dgrg loader rat suricata
Link:
https://tria.ge/reports/220217-k9md1acadm/
Behaviour
Runs ping.exe
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in Windows directory
Suspicious use of SetThreadContext
Checks computer location settings
Deletes itself
Xloader Payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
5a8455f269d1c9db4c93fc09554a32f25b865bd151cb587d88a37ec961d42df3
MD5 hash:
bb90c7a685d8eea82ec1dfe87aa30074
SHA1 hash:
fff586787b83a896dc432a2fef5bb67a0adad608
Link:
https://www.unpac.me/results/24223187-acb0-4338-a4f5-bb9d3db4367c/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.65
Link:
https://yomi.yoroi.company/submissions/5a8455f269d1c9db4c93fc09554a32f25b865bd151cb587d88a37ec961d42df3

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:INDICATOR_SUSPICIOUS_EXE_DiscordURL
Create hunting rule
Author:ditekSHen
Description:Detects executables Discord URL observed in first stage droppers
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:SUSP_PE_Discord_Attachment_Oct21_1
Create hunting rule
Author:Florian Roth
Description:Detects suspicious executable with reference to a Discord attachment (often used for malware hosting on a legitimate FQDN)
Reference:Internal Research

File information

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

Cape
Cape
https://www.capesandbox.com/analysis/242199/

Comments