MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 728f4462fb60eaaf040fae6f8993c8f64139715f97d3c16db43932b447709426. 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: 9


Intelligence 9 IOCs YARA File information Comments
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SHA256 hash: 728f4462fb60eaaf040fae6f8993c8f64139715f97d3c16db43932b447709426
SHA3-384 hash: c648fc3501682be1cfe6c38d4b02c632d4297d2623fc85977f81c78961bd0f09e33b9240b0c832717d19172d60358323
SHA1 hash: cac6e1bbbfaed26b382d0d4c09257f4ce6fa3106
MD5 hash: cddf866225d8eaeed3f7565a6038ffb5
humanhash: angel-video-sad-missouri
File name:Confirmation.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:778'752 bytes
First seen:2021-02-21 18:13:15 UTC
Last seen:Never
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:Laljef7+QZi970e/ttb0rdemcp1Sqbh4Rx4ucpPI:CjFQZI4BemWry4uN
Threatray 3'833 similar samples on MalwareBazaar
TLSH 1DF48D223ED48A2DE0FAAB350DA09D3F8BF9B1CB9321D21F7D58549F0D61E80C756259
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
149
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/118158/
Detection(s):
SecuriteInfo.com.Variant.Bulz.366011.2587.32154.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
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
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/613495
Signature
.NET source code contains potential unpacker
.NET source code contains very large strings
C2 URLs / IPs found in malware configuration
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)
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
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: 355761 Sample: Confirmation.exe Startdate: 21/02/2021 Architecture: WINDOWS Score: 100 41 www.zerowaterpitcher.com 2->41 49 Found malware configuration 2->49 51 Malicious sample detected (through community Yara rule) 2->51 53 Multi AV Scanner detection for dropped file 2->53 55 12 other signatures 2->55 11 Confirmation.exe 7 2->11         started        signatures3 process4 file5 33 C:\Users\user\AppData\...\VmEWOotpIFNthr.exe, PE32 11->33 dropped 35 C:\...\VmEWOotpIFNthr.exe:Zone.Identifier, ASCII 11->35 dropped 37 C:\Users\user\AppData\Local\...\tmp5493.tmp, XML 11->37 dropped 39 C:\Users\user\...\Confirmation.exe.log, ASCII 11->39 dropped 65 Tries to detect virtualization through RDTSC time measurements 11->65 67 Injects a PE file into a foreign processes 11->67 15 Confirmation.exe 11->15         started        18 schtasks.exe 1 11->18         started        signatures6 process7 signatures8 69 Modifies the context of a thread in another process (thread injection) 15->69 71 Maps a DLL or memory area into another process 15->71 73 Sample uses process hollowing technique 15->73 75 Queues an APC in another process (thread injection) 15->75 20 explorer.exe 15->20 injected 24 conhost.exe 18->24         started        process9 dnsIp10 43 stellardesignsystems.com 37.97.254.27, 49713, 80 TRANSIP-ASAmsterdamtheNetherlandsNL Netherlands 20->43 45 1031exchangeintoreit.com 184.168.131.241, 49710, 80 AS-26496-GO-DADDY-COM-LLCUS United States 20->45 47 3 other IPs or domains 20->47 57 System process connects to network (likely due to code injection or exploit) 20->57 26 systray.exe 20->26         started        signatures11 process12 signatures13 59 Modifies the context of a thread in another process (thread injection) 26->59 61 Maps a DLL or memory area into another process 26->61 63 Tries to detect virtualization through RDTSC time measurements 26->63 29 cmd.exe 1 26->29         started        process14 process15 31 conhost.exe 29->31         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/728f4462fb60eaaf040fae6f8993c8f64139715f97d3c16db43932b447709426/
Threat name:
Win32.Backdoor.Remcos
Create hunting rule
Status:
Malicious
First seen:
2021-02-21 02:06:17 UTC
AV detection:
10 of 29 (34.48%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=okhuiyx3mdvk6bapvzxyte6i6zats4k7s7j4c3nuhezlir3qsqta._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
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Formbook
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Formbook
f09416ef7aaab2c43c62ef77bb69c005ec4a57d4051586f5e7d8571e74fee41c
Formbook
+ 3'823 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook rat spyware stealer trojan
Link:
https://tria.ge/reports/210221-n3w347dz1n/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Deletes itself
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.howardpinder.com/rhg/
Unpacked files
SH256 hash:
b2f91d1427c7b60a3ad485bed04ba75636560783c9265a8f26542d5f6aa5d8a9
MD5 hash:
5ad6dc03137fc80e4e691f4b409d9120
SHA1 hash:
edb38e49ce79ecce33ce9a891df56468c3a4016e
Link:
https://www.unpac.me/results/8da56a27-fbf8-4486-a044-023ff8d1e6b8/
SH256 hash:
728f4462fb60eaaf040fae6f8993c8f64139715f97d3c16db43932b447709426
MD5 hash:
cddf866225d8eaeed3f7565a6038ffb5
SHA1 hash:
cac6e1bbbfaed26b382d0d4c09257f4ce6fa3106
Link:
https://www.unpac.me/results/8da56a27-fbf8-4486-a044-023ff8d1e6b8/
Please note that we are no longer able to provide a coverage score for Virus Total.

File information

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

Cape
Cape
https://www.capesandbox.com/analysis/118158/

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