MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a7017af2c60c1c5bc06d07f88e12d3b471a8787e233969d92ac6048d303cd682. 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: 12


Intelligence 12 IOCs YARA 2 File information Comments 1

SHA256 hash: a7017af2c60c1c5bc06d07f88e12d3b471a8787e233969d92ac6048d303cd682
SHA3-384 hash: 2a30f883c7b5ccc6bed43c06ec16c148554944cf72aea87b5903379a6eed08d687368fc1bf8646853d2a98d68ec06e86
SHA1 hash: a4654c204c066fd580377e76b587346f1301391b
MD5 hash: fe6c034412fb96a3d6e8f1c2d636041f
humanhash: oklahoma-oven-lake-eleven
File name:fe6c034412fb96a3d6e8f1c2d636041f
Download: download sample
Signature Formbook
File size:1'026'560 bytes
First seen:2022-01-19 09:46:21 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 9277af176d806a0016d6f2aea1e276c8 (2 x Formbook, 1 x DBatLoader)
ssdeep 24576:xx5RK+onXkmS7OR6gPSshzLnDyXranXKT7vOGe:xx5M+Sbos9LDg
Threatray 10'343 similar samples on MalwareBazaar
TLSH T1C225BE23B6D08437D4371A380C67A7E99525BE102E2CB84A7BE47E4C5F392607939F97
File icon (PE):PE icon
dhash icon 7cf6b6aa8ed8e8b4 (18 x Formbook, 8 x DBatLoader, 7 x AveMariaRAT)
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
222
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Creating a window
DNS request
Sending a custom TCP request
Creating a file
Launching a process
Searching for synchronization primitives
Sending an HTTP GET request
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a system process
Result
Malware family:
n/a
Score:
  6/10
Tags:
n/a
Behaviour
MalwareBazaar
CheckScreenResolution
CheckCmdLine
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
control.exe keylogger packed remcos replace.exe
Result
Verdict:
UNKNOWN
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:
DBatLoader FormBook
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
Allocates memory in foreign processes
Creates a thread in another existing process (thread injection)
Icon mismatch, binary includes an icon from a different legit application in order to fool users
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 dropped file
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Suspect Svchost Activity
Sigma detected: Suspicious Svchost Process
Tries to detect virtualization through RDTSC time measurements
Writes to foreign memory regions
Yara detected DBatLoader
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 555761 Sample: r38egPh4IH Startdate: 19/01/2022 Architecture: WINDOWS Score: 100 62 Malicious sample detected (through community Yara rule) 2->62 64 Icon mismatch, binary includes an icon from a different legit application in order to fool users 2->64 66 Multi AV Scanner detection for submitted file 2->66 68 4 other signatures 2->68 10 r38egPh4IH.exe 1 17 2->10         started        process3 dnsIp4 56 onedrive.live.com 10->56 58 lqzdgq.db.files.1drv.com 10->58 60 db-files.fe.1drv.com 10->60 40 C:\Users\user\Contactsbehaviorgraphdwegxyzxk.exe, PE32 10->40 dropped 42 C:\Users\...behaviorgraphdwegxyzxk.exe:Zone.Identifier, ASCII 10->42 dropped 88 Writes to foreign memory regions 10->88 90 Allocates memory in foreign processes 10->90 92 Creates a thread in another existing process (thread injection) 10->92 94 Injects a PE file into a foreign processes 10->94 15 DpiScaling.exe 10->15         started        file5 signatures6 process7 signatures8 104 Modifies the context of a thread in another process (thread injection) 15->104 106 Maps a DLL or memory area into another process 15->106 108 Sample uses process hollowing technique 15->108 110 2 other signatures 15->110 18 explorer.exe 2 15->18 injected process9 process10 20 Gdwegxyzxk.exe 15 18->20         started        24 Gdwegxyzxk.exe 15 18->24         started        26 svchost.exe 18->26         started        28 4 other processes 18->28 dnsIp11 44 onedrive.live.com 20->44 46 lqzdgq.db.files.1drv.com 20->46 48 db-files.fe.1drv.com 20->48 70 Multi AV Scanner detection for dropped file 20->70 72 Writes to foreign memory regions 20->72 74 Allocates memory in foreign processes 20->74 30 logagent.exe 20->30         started        50 192.168.2.1 unknown unknown 24->50 52 onedrive.live.com 24->52 54 2 other IPs or domains 24->54 76 Creates a thread in another existing process (thread injection) 24->76 78 Injects a PE file into a foreign processes 24->78 33 DpiScaling.exe 24->33         started        80 Modifies the context of a thread in another process (thread injection) 26->80 82 Maps a DLL or memory area into another process 26->82 84 Tries to detect virtualization through RDTSC time measurements 26->84 35 explorer.exe 181 26->35         started        signatures12 process13 signatures14 96 Modifies the context of a thread in another process (thread injection) 30->96 98 Maps a DLL or memory area into another process 30->98 100 Sample uses process hollowing technique 30->100 102 Tries to detect virtualization through RDTSC time measurements 30->102 37 colorcpl.exe 30->37         started        process15 signatures16 86 Tries to detect virtualization through RDTSC time measurements 37->86
Threat name:
Win32.Backdoor.Remcos
Status:
Malicious
First seen:
2022-01-19 09:47:12 UTC
File Type:
PE (Exe)
Extracted files:
55
AV detection:
22 of 28 (78.57%)
Threat level:
  5/5
Result
Malware family:
xloader
Score:
  10/10
Tags:
family:xloader campaign:fu6b loader persistence rat suricata
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Xloader Payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
a7017af2c60c1c5bc06d07f88e12d3b471a8787e233969d92ac6048d303cd682
MD5 hash:
fe6c034412fb96a3d6e8f1c2d636041f
SHA1 hash:
a4654c204c066fd580377e76b587346f1301391b
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:Formbook
Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
Rule name:win_formbook_auto
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 a7017af2c60c1c5bc06d07f88e12d3b471a8787e233969d92ac6048d303cd682

(this sample)

  
Delivery method
Distributed via web download

Comments



Avatar
zbet commented on 2022-01-19 09:46:24 UTC

url : hxxp://172.245.163.220/888/vbc.exe