MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8b5810ee2da1dcec5e8f06f1b56bbdeee77cdc6628289218789fc185e1ecfcf6. 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 4 File information Comments 1

SHA256 hash: 8b5810ee2da1dcec5e8f06f1b56bbdeee77cdc6628289218789fc185e1ecfcf6
SHA3-384 hash: f475be6b6f0735dd90fb5c3c3259ca40e3a5aee5983d700d29a9d01202562995417da0a6e5c4e3524c5bab0c4d2f5c31
SHA1 hash: 4464785e3b4bcfa2ece1adf341e8dd685aedf32a
MD5 hash: ba5aa560f75629d9a89656183877c30d
humanhash: monkey-papa-papa-one
File name:ba5aa560f75629d9a89656183877c30d
Download: download sample
Signature Formbook
File size:606'720 bytes
First seen:2021-08-31 09:07:41 UTC
Last seen:2021-08-31 11:32:25 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'606 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:yBIifBjze/IRQ/3mgb6Nnpj+l3VG/Gd/263SdyXwZPJWTZVRmsBERsjiT+ip1m0N:npb0npCBVGs/2KyybK
Threatray 8'668 similar samples on MalwareBazaar
TLSH T13CD46B9C725075DFC867C976CAA82C64EB607476931FC203A05312ADEE0EA9BCF155F2
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence


File Origin
# of uploads :
2
# of downloads :
166
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
class.exe
Verdict:
Malicious activity
Analysis date:
2021-08-31 03:27:25 UTC
Tags:
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
DNS request
Creating a window
Sending a UDP request
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a file in the %temp% directory
Deleting a recently created file
Launching a process
Creating a process with a hidden window
Unauthorized injection to a recently created process
Creating a file
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Detected unpacking (changes PE section rights)
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
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd delete
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 netsh to modify the Windows network and firewall settings
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 474852 Sample: lGzdZQDvzG Startdate: 31/08/2021 Architecture: WINDOWS Score: 100 43 www.rachelburgin.info 2->43 45 rachelburgin.info 2->45 47 clientconfig.passport.net 2->47 55 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->55 57 Found malware configuration 2->57 59 Malicious sample detected (through community Yara rule) 2->59 61 10 other signatures 2->61 10 lGzdZQDvzG.exe 7 2->10         started        signatures3 process4 file5 35 C:\Users\user\AppData\...\tzNilFbxVWEsCF.exe, PE32 10->35 dropped 37 C:\...\tzNilFbxVWEsCF.exe:Zone.Identifier, ASCII 10->37 dropped 39 C:\Users\user\AppData\Local\...\tmpB2C8.tmp, XML 10->39 dropped 41 C:\Users\user\AppData\...\lGzdZQDvzG.exe.log, ASCII 10->41 dropped 73 Detected unpacking (changes PE section rights) 10->73 75 Uses schtasks.exe or at.exe to add and modify task schedules 10->75 77 Uses netsh to modify the Windows network and firewall settings 10->77 79 2 other signatures 10->79 14 lGzdZQDvzG.exe 10->14         started        17 schtasks.exe 1 10->17         started        19 lGzdZQDvzG.exe 10->19         started        21 2 other processes 10->21 signatures6 process7 signatures8 81 Modifies the context of a thread in another process (thread injection) 14->81 83 Maps a DLL or memory area into another process 14->83 85 Sample uses process hollowing technique 14->85 87 Queues an APC in another process (thread injection) 14->87 23 netsh.exe 14->23         started        26 explorer.exe 14->26 injected 29 conhost.exe 17->29         started        process9 dnsIp10 63 Self deletion via cmd delete 23->63 65 Modifies the context of a thread in another process (thread injection) 23->65 67 Maps a DLL or memory area into another process 23->67 69 Tries to detect virtualization through RDTSC time measurements 23->69 31 cmd.exe 1 23->31         started        49 www.heatgemini.com 83.229.43.67, 49728, 80 SKYVISIONGB United Kingdom 26->49 51 thepropertyjunction.com 145.239.252.49, 49726, 80 OVHFR France 26->51 53 5 other IPs or domains 26->53 71 System process connects to network (likely due to code injection or exploit) 26->71 signatures11 process12 process13 33 conhost.exe 31->33         started       
Threat name:
Win32.Trojan.AgentTesla
Status:
Malicious
First seen:
2021-08-31 06:28:53 UTC
AV detection:
17 of 46 (36.96%)
Threat level:
  5/5
Result
Malware family:
xloader
Score:
  10/10
Tags:
family:xloader campaign:i7dg loader rat
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
Malware Config
C2 Extraction:
http://www.pdam-lebak.com/i7dg/
Unpacked files
SH256 hash:
c0ee1071e444f415f8b62856a0896f3b22e563f1bb4f03d14142583efe49a565
MD5 hash:
29db2e114b88ae1f6a00c9aa71690043
SHA1 hash:
ec82db71443556a5b320357b0b8b09e70ec1db9c
SH256 hash:
ad9e5573f2d6fe947b02c7058197bf17bdb91f3446fd5af681559b9883817638
MD5 hash:
670dc38e4d1dbf198b5bf500663158a8
SHA1 hash:
898adfb665a2c975edeb425816459ff1ee76cd6d
SH256 hash:
8b5810ee2da1dcec5e8f06f1b56bbdeee77cdc6628289218789fc185e1ecfcf6
MD5 hash:
ba5aa560f75629d9a89656183877c30d
SHA1 hash:
4464785e3b4bcfa2ece1adf341e8dd685aedf32a
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:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
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 8b5810ee2da1dcec5e8f06f1b56bbdeee77cdc6628289218789fc185e1ecfcf6

(this sample)

  
Delivery method
Distributed via web download

Comments



Avatar
zbet commented on 2021-08-31 09:07:43 UTC

url : hxxp://52.221.208.248/chkd/class99.exe