MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3354bfb1dd06bae0110dac4363b13fde838e8299af8d9acb67fe5a39ae4159bf. 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: 15


Intelligence 15 IOCs YARA 4 File information Comments 1

SHA256 hash: 3354bfb1dd06bae0110dac4363b13fde838e8299af8d9acb67fe5a39ae4159bf
SHA3-384 hash: 310daa1dcbaf6136a9e33eb059cba07151b7e40b987079dab71cc553f47e1b50304da062f0310d2f08f8c472706111a5
SHA1 hash: a20ffd4e6f186776ea7d3165067a4275cdd727b1
MD5 hash: c6a3f7f84ef747da790fb9fd87843a4e
humanhash: uranus-saturn-ink-whiskey
File name:c6a3f7f84ef747da790fb9fd87843a4e
Download: download sample
Signature Formbook
File size:520'704 bytes
First seen:2022-03-11 18:15:52 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'607 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:5lW9yOU5lDHoYdso8Q1gfuGLtqfNRUZF:q9NU5h188gJLosZF
Threatray 14'232 similar samples on MalwareBazaar
TLSH T11CB4CF16EF5B82A2CF352E765FB16BA01B84FE11E5B3C24320D42DE405AF7972C63499
File icon (PE):PE icon
dhash icon 69d4b26868b2cc71 (23 x Formbook, 6 x SnakeKeylogger, 2 x AgentTesla)
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
221
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
DNS request
Sending a custom TCP request
Creating a file
Unauthorized injection to a recently created process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
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.
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
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
Sigma detected: Suspect Svchost Activity
Sigma detected: Suspicious Svchost Process
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Yara detected Costura Assembly Loader
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 587596 Sample: 9eD8RYGg2r Startdate: 11/03/2022 Architecture: WINDOWS Score: 100 56 Malicious sample detected (through community Yara rule) 2->56 58 Antivirus / Scanner detection for submitted sample 2->58 60 Multi AV Scanner detection for submitted file 2->60 62 7 other signatures 2->62 10 9eD8RYGg2r.exe 1 5 2->10         started        14 huss.exe 3 2->14         started        process3 file4 42 C:\Users\user\AppData\Local\huss.exe, PE32 10->42 dropped 44 C:\Users\user\...\huss.exe:Zone.Identifier, ASCII 10->44 dropped 46 C:\Users\user\AppData\...\9eD8RYGg2r.exe.log, ASCII 10->46 dropped 64 Tries to detect virtualization through RDTSC time measurements 10->64 16 9eD8RYGg2r.exe 10->16         started        19 9eD8RYGg2r.exe 10->19         started        21 9eD8RYGg2r.exe 10->21         started        66 Antivirus detection for dropped file 14->66 68 Multi AV Scanner detection for dropped file 14->68 70 Machine Learning detection for dropped file 14->70 23 huss.exe 14->23         started        25 huss.exe 14->25         started        signatures5 process6 signatures7 48 Modifies the context of a thread in another process (thread injection) 16->48 50 Maps a DLL or memory area into another process 16->50 52 Sample uses process hollowing technique 16->52 54 Queues an APC in another process (thread injection) 16->54 27 explorer.exe 16->27 injected process8 process9 29 WWAHost.exe 27->29         started        32 huss.exe 2 27->32         started        34 svchost.exe 27->34         started        signatures10 72 Self deletion via cmd delete 29->72 74 Tries to detect virtualization through RDTSC time measurements 29->74 36 cmd.exe 1 29->36         started        38 huss.exe 32->38         started        process11 process12 40 conhost.exe 36->40         started       
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2022-03-11 18:16:16 UTC
File Type:
PE (.Net Exe)
Extracted files:
15
AV detection:
23 of 27 (85.19%)
Threat level:
  5/5
Result
Malware family:
xloader
Score:
  10/10
Tags:
family:xloader campaign:vfm2 loader persistence rat
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of SetThreadContext
Adds Run key to start application
Xloader Payload
Xloader
Unpacked files
SH256 hash:
c67e1109105d84d3ca1d671a07268f7be10ebdf19129dc7e6f197ee579e915a4
MD5 hash:
68ec2936aaccbc9bddf307fface791a8
SHA1 hash:
90887bd1b4190808580dc0952767e0f61a9147c3
SH256 hash:
9f01d9f2ed07e630ec078efa5d760762c3c8ad3b06e9e8a9062a37d63d57b026
MD5 hash:
9fbb8cec55b2115c00c0ba386c37ce62
SHA1 hash:
e2378a1c22c35e40fd1c3e19066de4e33b50f24a
SH256 hash:
3354bfb1dd06bae0110dac4363b13fde838e8299af8d9acb67fe5a39ae4159bf
MD5 hash:
c6a3f7f84ef747da790fb9fd87843a4e
SHA1 hash:
a20ffd4e6f186776ea7d3165067a4275cdd727b1
Malware family:
XLoader
Verdict:
Malicious
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:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
Rule name:Typical_Malware_String_Transforms
Author:Florian Roth
Description:Detects typical strings in a reversed or otherwise modified form
Reference:Internal Research
Rule name:Typical_Malware_String_Transforms_RID3473
Author:Florian Roth
Description:Detects typical strings in a reversed or otherwise modified form
Reference:Internal Research

File information


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

Web download

Formbook

Executable exe 3354bfb1dd06bae0110dac4363b13fde838e8299af8d9acb67fe5a39ae4159bf

(this sample)

  
Delivery method
Distributed via web download

Comments



Avatar
zbet commented on 2022-03-11 18:15:54 UTC

url : hxxp://107.172.76.178/hrh/go.exe