MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 42dc6cb1694709c1a2d33542a735b89ab39810fd2ac5a434fb74446b7edd56e5. 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 5 File information Comments

SHA256 hash: 42dc6cb1694709c1a2d33542a735b89ab39810fd2ac5a434fb74446b7edd56e5
SHA3-384 hash: a453d6ba40238619a6acc3c579d87cffb648c086b2417ae59e4d8498190a47b138b595ffaaf09c9647032d3d42c2046a
SHA1 hash: 7a88687ee6426ac680052eb61ffd6e5dcea06548
MD5 hash: 439eb297222f780972ad15484a72836b
humanhash: orange-queen-river-pizza
File name:DEKONT.exe
Download: download sample
Signature Formbook
File size:464'767 bytes
First seen:2022-02-11 18:05:28 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:hwEHSaHBxtCChOAzhh6gvb3PD1kYbV/U/m0+hJg0wHF9sugs:1CChR6gvb/h1h/UO5u0w9ss
Threatray 13'252 similar samples on MalwareBazaar
TLSH T17FA4E0083088F056DBDD7635AFA1DDB513A0AD9D2D2486772AF83EDF32FD14BA500226
File icon (PE):PE icon
dhash icon 0000000000000000 (872 x AgentTesla, 496 x Formbook, 296 x RedLineStealer)
Reporter abuse_ch
Tags:exe FormBook geo TUR

Intelligence


File Origin
# of uploads :
1
# of downloads :
292
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
DNS 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.
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)
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 (e.g. based on Emerging Threat rules)
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:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 571008 Sample: DEKONT.exe Startdate: 11/02/2022 Architecture: WINDOWS Score: 100 34 www.xvvpdo.space 2->34 36 www.novustqf.net 2->36 38 shops.myfunpinpin.com 2->38 54 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->54 56 Found malware configuration 2->56 58 Malicious sample detected (through community Yara rule) 2->58 60 4 other signatures 2->60 12 DEKONT.exe 19 2->12         started        signatures3 process4 file5 32 C:\Users\user\AppData\Local\...\vgydixxi.exe, PE32 12->32 dropped 15 vgydixxi.exe 12->15         started        process6 signatures7 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 vgydixxi.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.ecloudproducts.com 74.206.228.78, 49796, 80 WEBAIR-INTERNETUS United States 21->40 42 www.peterarthurmoon.com 77.68.64.12, 49825, 80 ONEANDONE-ASBrauerstrasse48DE United Kingdom 21->42 44 11 other IPs or domains 21->44 62 System process connects to network (likely due to code injection or exploit) 21->62 64 Performs DNS queries to domains with low reputation 21->64 25 help.exe 21->25         started        signatures12 process13 signatures14 66 Modifies the context of a thread in another process (thread injection) 25->66 68 Maps a DLL or memory area into another process 25->68 70 Tries to detect virtualization through RDTSC time measurements 25->70 28 cmd.exe 1 25->28         started        process15 process16 30 conhost.exe 28->30         started       
Threat name:
Win32.Trojan.XLoader
Status:
Malicious
First seen:
2022-02-11 18:06:13 UTC
File Type:
PE (Exe)
Extracted files:
4
AV detection:
18 of 28 (64.29%)
Threat level:
  5/5
Result
Malware family:
xloader
Score:
  10/10
Tags:
family:formbook family:xloader campaign:efa8 loader persistence rat spyware stealer suricata trojan
Behaviour
Checks processor information in registry
Enumerates system info in registry
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
System policy modification
Enumerates physical storage devices
Program crash
Drops file in Program Files directory
Drops file in Windows directory
Suspicious use of SetThreadContext
Loads dropped DLL
Reads user/profile data of web browsers
Adds policy Run key to start application
Executes dropped EXE
Xloader Payload
Formbook
Suspicious use of NtCreateProcessExOtherParentProcess
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata: ET MALWARE FormBook CnC Checkin (POST) M2
Unpacked files
SH256 hash:
8ed55af3fa94cca6bcec05281d705f3eac36669c851210e64a4f0bc760dfb71d
MD5 hash:
343d01372c4852058cc876c1e9384a2c
SHA1 hash:
699ce0ce932943d7475f4e11a021f51343d4589a
SH256 hash:
42dc6cb1694709c1a2d33542a735b89ab39810fd2ac5a434fb74446b7edd56e5
MD5 hash:
439eb297222f780972ad15484a72836b
SHA1 hash:
7a88687ee6426ac680052eb61ffd6e5dcea06548
Malware family:
XLoader
Verdict:
Malicious
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:crime_win32_ransom_avaddon_1
Author:@VK_Intel
Description:Detects Avaddon ransomware
Reference:https://twitter.com/VK_Intel/status/1300944441390370819
Rule name:downloader_macros
Author:ddvvmmzz
Description:downloader macros
Rule name:exec_macros
Author:ddvvmmzz
Description:exec macros
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.

Comments