MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6b19bf1ec55b55f38c00c74fd66dd45c8d7e12eebebca913c4d21152ed0ced8c. 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: 13


Intelligence 13 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 6b19bf1ec55b55f38c00c74fd66dd45c8d7e12eebebca913c4d21152ed0ced8c
SHA3-384 hash: 1ba783ae5c24abd88215b07d379ca88f17d7ac87899b8f1a2c19d17463d064e97a7cb973575d52c117f08abcae06c069
SHA1 hash: aa758a0388cbdea9894cc0527e5fb1b9bafbde6a
MD5 hash: 63024416555335f0668d2450f16fed17
humanhash: venus-earth-quiet-stream
File name:SecuriteInfo.com.Variant.Jaik.72878.26519.1384
Download: download sample
Signature Formbook
Create hunting rule
File size:259'244 bytes
First seen:2022-05-12 10:12:39 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 741 x AgentTesla, 431 x GuLoader)
ssdeep 6144:LOtIO+SAqp9EJ/L6vVccSnGvQDrUKt506fVz:LOLpAe9EVatQfUKtXVz
TLSH T12644120037D4D433E9679B722E7B77329BFBD9206471915B43852069B8A1F82EB2F943
TrID 48.8% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
16.4% (.EXE) Win64 Executable (generic) (10523/12/4)
10.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.8% (.EXE) Win16 NE executable (generic) (5038/12/1)
7.0% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter SecuriteInfoCom
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
252
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/270058/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a window
Creating a process from a recently created file
Сreating synchronization primitives
Launching a process
Launching cmd.exe command interpreter
Searching for synchronization primitives
DNS request
Sending an HTTP GET request
Reading critical registry keys
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Forced shutdown of a system process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Stealing user critical data
Unauthorized injection to a system process
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/17330/overview
Behaviour
MalwareBazaar
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
control.exe formbook overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/627cddbc804c0977d3e55be1/reports/2ea39db0-abb3-4556-aa94-645274213500/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.
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/39dc33a6-5c2e-4c68-96d0-4c9cfebd9055
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/992616
Signature
C2 URLs / IPs found in malware configuration
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
Found malware configuration
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 dropped file
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Snort IDS alert for network traffic
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 625109 Sample: SecuriteInfo.com.Variant.Ja... Startdate: 12/05/2022 Architecture: WINDOWS Score: 100 36 www.have33645money.xyz 2->36 38 www.vostfrguru.com 2->38 54 Snort IDS alert for network traffic 2->54 56 Found malware configuration 2->56 58 Malicious sample detected (through community Yara rule) 2->58 60 5 other signatures 2->60 12 SecuriteInfo.com.Variant.Jaik.72878.26519.exe 19 2->12         started        signatures3 process4 file5 32 C:\Users\user\AppData\Local\...\iyixeam.exe, PE32 12->32 dropped 34 C:\Users\user\AppData\Local\Temp\pdapmm, DOS 12->34 dropped 15 iyixeam.exe 12->15         started        process6 signatures7 70 Multi AV Scanner detection for dropped file 15->70 72 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 15->72 74 Tries to detect virtualization through RDTSC time measurements 15->74 76 Injects a PE file into a foreign processes 15->76 18 iyixeam.exe 15->18         started        process8 signatures9 46 Modifies the context of a thread in another process (thread injection) 18->46 48 Maps a DLL or memory area into another process 18->48 50 Sample uses process hollowing technique 18->50 52 Queues an APC in another process (thread injection) 18->52 21 explorer.exe 18->21 injected process10 dnsIp11 40 www.wellcarebuckeyehealthplan.com 216.120.146.201, 49777, 80 TRIVALENT-GROUP-NEWUS United States 21->40 42 www.retirement-villagesca.com 185.53.179.93, 49783, 80 TEAMINTERNET-ASDE Germany 21->42 44 6 other IPs or domains 21->44 62 System process connects to network (likely due to code injection or exploit) 21->62 25 cmd.exe 21->25         started        signatures12 process13 signatures14 64 Modifies the context of a thread in another process (thread injection) 25->64 66 Maps a DLL or memory area into another process 25->66 68 Tries to detect virtualization through RDTSC time measurements 25->68 28 cmd.exe 1 25->28         started        process15 process16 30 conhost.exe 28->30         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/6b19bf1ec55b55f38c00c74fd66dd45c8d7e12eebebca913c4d21152ed0ced8c/
Threat name:
Win32.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2022-05-11 12:11:04 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
24 of 26 (92.31%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:formbook family:xloader campaign:pvgu loader persistence rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/220512-l83j9sehbj/
Behaviour
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Drops file in Program Files directory
Suspicious use of SetThreadContext
Adds Run key to start application
Loads dropped DLL
Reads user/profile data of web browsers
Executes dropped EXE
Xloader Payload
Formbook
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata: ET MALWARE FormBook CnC Checkin (POST) M2
Unpacked files
SH256 hash:
41612906e3a3ac1189a4af1d89ff31c1181c7f9dfd078819e2761ad50256042f
MD5 hash:
da56635d9806edfe799640f566920300
SHA1 hash:
50f08460258443c67def8613d7d3cd5e0afa8221
Link:
https://www.unpac.me/results/af28f734-7300-496c-9cde-1c9d1abc62e3/
SH256 hash:
a7ace2a8a0ebe51402dbc4dd81fe4e33e9a42122df4fc2f9516ea89c320ebec5
MD5 hash:
ea2b1184771903f7b7aa22fcd0f30e5f
SHA1 hash:
655a69b9b1be4b748caad9c6ece11a7241430990
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/af28f734-7300-496c-9cde-1c9d1abc62e3/
SH256 hash:
6b19bf1ec55b55f38c00c74fd66dd45c8d7e12eebebca913c4d21152ed0ced8c
MD5 hash:
63024416555335f0668d2450f16fed17
SHA1 hash:
aa758a0388cbdea9894cc0527e5fb1b9bafbde6a
Link:
https://www.unpac.me/results/af28f734-7300-496c-9cde-1c9d1abc62e3/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/6b19bf1ec55b55f38c00c74fd66dd45c8d7e12eebebca913c4d21152ed0ced8c

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:crime_win32_ransom_avaddon_1
Create hunting rule
Author:@VK_Intel
Description:Detects Avaddon ransomware
Reference:https://twitter.com/VK_Intel/status/1300944441390370819
Rule name:malware_Formbook_strings
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
Rule name:win_formbook_auto
Create hunting rule
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 6b19bf1ec55b55f38c00c74fd66dd45c8d7e12eebebca913c4d21152ed0ced8c

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2191207/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/270058/

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