MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f95d1ee3fa7a60aa2c6286b221d0b3c8622f08df46811099dc3ad26a7b3c3249. 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: 10


Intelligence 10 IOCs YARA 2 File information Comments

SHA256 hash: f95d1ee3fa7a60aa2c6286b221d0b3c8622f08df46811099dc3ad26a7b3c3249
SHA3-384 hash: 0efcb1d2a5251c2e3aa27486c5666bf5d326428849a5819488564c0169478078d6284533477648372c11ab32b97ff4a6
SHA1 hash: 6db5171f0fd1738dbdf0047fc04f4b974dc44611
MD5 hash: 9f4e303a95d1da8e913a1ed0226192d1
humanhash: beer-virginia-steak-illinois
File name:dekont.exe
Download: download sample
Signature Formbook
File size:302'812 bytes
First seen:2022-02-17 06:46:26 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 099c0646ea7282d232219f8807883be0 (476 x Formbook, 210 x Loki, 107 x AgentTesla)
ssdeep 6144:owO/+C7KqJVusY4GsnZthW4T+XJqeuU0iloeBquRJ402okVjFaQhCFdJuTi:IH2sYFcXT+XJuU0iN0uTT2/Ih+i
Threatray 11'002 similar samples on MalwareBazaar
TLSH T1A454120BE3C6D5A7E2534CB012BA4FA96BB9E31533213B1B5B736E5BAC009937613152
File icon (PE):PE icon
dhash icon b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter abuse_ch
Tags:exe FormBook geo TUR

Intelligence


File Origin
# of uploads :
1
# of downloads :
203
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a window
Creating a process from a recently created file
Sending a custom TCP request
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
control.exe overlay packed shell32.dll
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.
Gathering data
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
Antivirus detection for URL or domain
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
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Tries to detect virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 573879 Sample: dekont.exe Startdate: 17/02/2022 Architecture: WINDOWS Score: 100 36 www.yasagureer.com 2->36 38 www.sumraijaz.com 2->38 48 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->48 50 Found malware configuration 2->50 52 Malicious sample detected (through community Yara rule) 2->52 54 5 other signatures 2->54 12 dekont.exe 19 2->12         started        signatures3 process4 file5 34 C:\Users\user\AppData\Local\...\mgdsknh.exe, PE32 12->34 dropped 15 mgdsknh.exe 12->15         started        process6 signatures7 62 Multi AV Scanner detection for dropped file 15->62 64 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 15->64 66 Tries to detect virtualization through RDTSC time measurements 15->66 68 Injects a PE file into a foreign processes 15->68 18 mgdsknh.exe 15->18         started        process8 signatures9 40 Modifies the context of a thread in another process (thread injection) 18->40 42 Maps a DLL or memory area into another process 18->42 44 Sample uses process hollowing technique 18->44 46 Queues an APC in another process (thread injection) 18->46 21 explorer.exe 18->21 injected process10 process11 23 cmd.exe 21->23         started        signatures12 56 Modifies the context of a thread in another process (thread injection) 23->56 58 Maps a DLL or memory area into another process 23->58 60 Tries to detect virtualization through RDTSC time measurements 23->60 26 cmd.exe 1 23->26         started        28 explorer.exe 123 23->28         started        30 explorer.exe 1 124 23->30         started        process13 process14 32 conhost.exe 26->32         started       
Threat name:
Win32.Trojan.NSISInject
Status:
Malicious
First seen:
2022-02-16 17:24:59 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
19 of 43 (44.19%)
Threat level:
  5/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:k13n rat spyware stealer suricata trojan
Behaviour
Checks processor information in registry
Modifies data under HKEY_USERS
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
Drops file in Windows directory
Suspicious use of SetThreadContext
Loads dropped DLL
Executes dropped EXE
Formbook Payload
Formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
7b16c04a43f74451956e0a68d53b6e2a50297e3ae9529043dee6676b31adb243
MD5 hash:
9aa210b36d4f72d80ab0dcb01c0f155f
SHA1 hash:
bde50ffbb1bef7296f3161729696543ede03cf3c
Detections:
win_formbook_g0 win_formbook_auto
SH256 hash:
058e4f248d71a1e788c407b33c9339da8e844f36a3ccb0c6edf2bd6e6ea5f4cc
MD5 hash:
883c277b33322f5c5ae4bdd60e137ce1
SHA1 hash:
90f90d9a3e429099bb6b968b3f0aadd3ee852354
SH256 hash:
f95d1ee3fa7a60aa2c6286b221d0b3c8622f08df46811099dc3ad26a7b3c3249
MD5 hash:
9f4e303a95d1da8e913a1ed0226192d1
SHA1 hash:
6db5171f0fd1738dbdf0047fc04f4b974dc44611
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:malware_Formbook_strings
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.

Malspam

Formbook

Executable exe f95d1ee3fa7a60aa2c6286b221d0b3c8622f08df46811099dc3ad26a7b3c3249

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments