MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5038f7f49d3052a244db8019146b11b139d09d867205416ee70df3d97f065a28. 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: 7


Intelligence 7 IOCs YARA File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 5038f7f49d3052a244db8019146b11b139d09d867205416ee70df3d97f065a28
SHA3-384 hash: ae416a6197c37d44759f7f6c5fa110459765272fb0e2fa9ecc5240dc69b196ccae91f969c2cf89d0f6221a71a10f5816
SHA1 hash: 6a965f6989de0c0698bc05aa58cc07cd22b10c5a
MD5 hash: a966f314beef0fe8338f9f0b42b08650
humanhash: early-tango-oxygen-snake
File name:Top urgent Final RFQ by Chloe.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'016'832 bytes
First seen:2020-10-28 07:48:52 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:oNNZUibL0AopvYHFtTEGBPcVRAMNIea8/EEu/zH6oVQGS5btHvmWo0SOKXdrVkkh:eNZUibL0Bpg3wIEVRANea88lcrDeA
TLSH FB254C89751072DED867C3399A658C38E6907C7B832B810FA097789F6A3D987DF141B3
Reporter abuse_ch
Tags:exe FormBook


Avatar
abuse_ch
Malspam distributing Formbook:

HELO: dlveltex.co
Sending IP: 111.90.140.219
From: Chloe <sales@bd-valve.com>
Reply-To: mara@dststrade.com
Subject: RE:Top urgent Final RFQ Required - Important.
Attachment: Top urgent Final RFQ by Chloe.rar (contains "Top urgent Final RFQ by Chloe.exe")

Intelligence

File Origin
# of uploads :
1
# of downloads :
98
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/80313/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
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
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Unauthorized injection to a recently created process
Creating a file
Launching cmd.exe command interpreter
Enabling autorun by creating a file
Unauthorized injection to a system process
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/514619
Signature
.NET source code contains potential unpacker
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)
Modifies the prolog of user mode functions (user mode inline hooks)
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
Sigma detected: Scheduled temp file as task from temp location
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 AntiVM_3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 306420 Sample: Top urgent Final RFQ  by Ch... Startdate: 28/10/2020 Architecture: WINDOWS Score: 100 37 www.commentorsint.com 2->37 39 commentorsint.com 2->39 47 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->47 49 Malicious sample detected (through community Yara rule) 2->49 51 Multi AV Scanner detection for dropped file 2->51 53 11 other signatures 2->53 11 Top urgent Final RFQ  by Chloe.exe 7 2->11         started        signatures3 process4 file5 33 C:\Users\user\AppData\Roaming\ZsVefR.exe, PE32 11->33 dropped 35 C:\Users\user\AppData\Local\...\tmpDCF5.tmp, XML 11->35 dropped 63 Injects a PE file into a foreign processes 11->63 15 Top urgent Final RFQ  by Chloe.exe 11->15         started        18 schtasks.exe 1 11->18         started        signatures6 process7 signatures8 65 Modifies the context of a thread in another process (thread injection) 15->65 67 Maps a DLL or memory area into another process 15->67 69 Sample uses process hollowing technique 15->69 71 Queues an APC in another process (thread injection) 15->71 20 explorer.exe 15->20 injected 24 conhost.exe 18->24         started        process9 dnsIp10 41 therealtalkers.com 34.102.136.180, 49741, 80 GOOGLEUS United States 20->41 43 alemaruy.com 107.180.34.192, 49737, 80 AS-26496-GO-DADDY-COM-LLCUS United States 20->43 45 2 other IPs or domains 20->45 55 System process connects to network (likely due to code injection or exploit) 20->55 26 wscript.exe 20->26         started        signatures11 process12 signatures13 57 Modifies the context of a thread in another process (thread injection) 26->57 59 Maps a DLL or memory area into another process 26->59 61 Tries to detect virtualization through RDTSC time measurements 26->61 29 cmd.exe 1 26->29         started        process14 process15 31 conhost.exe 29->31         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/5038f7f49d3052a244db8019146b11b139d09d867205416ee70df3d97f065a28/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2020-10-28 04:00:03 UTC
AV detection:
24 of 29 (82.76%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ka4pp5e5gbjkerg3qamri2yrwe45bhmgoicuc3xhbxz5s7ygliua._file
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook rat spyware stealer trojan
Link:
https://tria.ge/reports/201028-zyjnlwg91a/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Deletes itself
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.tantitogeek.com/te/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.45
Link:
https://yomi.yoroi.company/submissions/5038f7f49d3052a244db8019146b11b139d09d867205416ee70df3d97f065a28

File information

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

Malspam

Formbook

rar 8935bcfd637972593b604274d8640093bc772b0a4052bb7dd06acc33bf611e8b

Formbook

Executable exe 5038f7f49d3052a244db8019146b11b139d09d867205416ee70df3d97f065a28

(this sample)

  
Dropped by
MD5 17d64d7b8788baec40c8c6fde260d8ec
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 8935bcfd637972593b604274d8640093bc772b0a4052bb7dd06acc33bf611e8b
Cape
Cape
https://www.capesandbox.com/analysis/80313/

Comments