MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 fc72fd04104301dff8f041b736fbfda0b353d9d334d8bc57d70e9f2d9b3eb21f. 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: 15


Intelligence 15 IOCs YARA 18 File information Comments 1

SHA256 hash: fc72fd04104301dff8f041b736fbfda0b353d9d334d8bc57d70e9f2d9b3eb21f
SHA3-384 hash: 91ab7d411bcf7c06c666061030758e898aa2ca55c963c0e06f4a4b6c6be19be23b93a3051f21581f0a2f9e9c88ee6f5b
SHA1 hash: b1adb1ffffedbba9da3bcde11091fc57b7ce60b2
MD5 hash: c84fe8d8b80e63f94c93ba326e65b5db
humanhash: wyoming-jupiter-victor-india
File name:c84fe8d8b80e63f94c93ba326e65b5db
Download: download sample
Signature Formbook
File size:570'798 bytes
First seen:2023-11-08 07:35:18 UTC
Last seen:2023-11-08 09:20:11 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash b76363e9cb88bf9390860da8e50999d2 (464 x Formbook, 184 x AgentTesla, 122 x SnakeKeylogger)
ssdeep 12288:qx9s1E+WqM/9zMbuPa56PcmceHMu1B19bXrqX:qx9s1E4M/BPaE1cpubLqX
TLSH T145C4BE643FC8DD13D3DA0378AF6EF3658339BD0C4BA38637B64A765978287669819340
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon 60f8fcfcfcf8fc08 (1 x Formbook)
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence


File Origin
# of uploads :
2
# of downloads :
292
Origin country :
FR FR
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% directory
Creating a process from a recently created file
Searching for the window
Launching a process
Сreating synchronization primitives
Launching cmd.exe command interpreter
Sending a custom TCP request
Searching for synchronization primitives
Launching the default Windows debugger (dwwin.exe)
Setting browser functions hooks
Unauthorized injection to a recently created process by context flags manipulation
Unauthorized injection to a system process
Unauthorized injection to a browser process
Gathering data
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
control installer lolbin overlay packed shell32
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, NSISDropper
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
Antivirus detection for dropped file
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
Machine Learning detection for dropped file
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
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
Yara detected NSISDropper
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1338799 Sample: 3swLn9DYp3.exe Startdate: 08/11/2023 Architecture: WINDOWS Score: 100 36 www.tron-pk.xyz 2->36 38 www.tiyu116.net 2->38 40 10 other IPs or domains 2->40 56 Snort IDS alert for network traffic 2->56 58 Found malware configuration 2->58 60 Malicious sample detected (through community Yara rule) 2->60 62 7 other signatures 2->62 12 3swLn9DYp3.exe 17 2->12         started        signatures3 process4 file5 34 C:\Users\user\AppData\Local\...\eafhznn.exe, PE32 12->34 dropped 15 eafhznn.exe 1 12->15         started        process6 signatures7 72 Antivirus detection for dropped file 15->72 74 Multi AV Scanner detection for dropped file 15->74 76 Machine Learning detection for dropped file 15->76 78 3 other signatures 15->78 18 eafhznn.exe 15->18         started        21 conhost.exe 15->21         started        process8 signatures9 48 Modifies the context of a thread in another process (thread injection) 18->48 50 Maps a DLL or memory area into another process 18->50 52 Sample uses process hollowing technique 18->52 54 Queues an APC in another process (thread injection) 18->54 23 explorer.exe 9 1 18->23 injected process10 dnsIp11 42 www.sololinkliving.com 64.32.8.67, 49707, 80 ST-BGPUS United States 23->42 44 www.tiyu116.net 38.11.95.220, 49715, 80 COGENT-174US United States 23->44 46 6 other IPs or domains 23->46 64 System process connects to network (likely due to code injection or exploit) 23->64 27 cmmon32.exe 23->27         started        signatures12 process13 signatures14 66 Modifies the context of a thread in another process (thread injection) 27->66 68 Maps a DLL or memory area into another process 27->68 70 Tries to detect virtualization through RDTSC time measurements 27->70 30 cmd.exe 1 27->30         started        process15 process16 32 conhost.exe 30->32         started       
Threat name:
Win32.Trojan.Generic
Status:
Malicious
First seen:
2023-11-08 07:36:04 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
12 of 37 (32.43%)
Threat level:
  2/5
Verdict:
malicious
Label(s):
formbook
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:tb8i rat spyware stealer trojan
Behaviour
Gathers network information
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Executes dropped EXE
Loads dropped DLL
Formbook payload
Formbook
Unpacked files
SH256 hash:
eca7cb6a142a31f7d0f57c2a18d76516ae086f87d234502ec798eb1136ea2491
MD5 hash:
d992b35092b4aa76f50cbdaed7fdb25c
SHA1 hash:
89e4939207a7c0ac0d1b1672b6236a5c94a455d8
Detections:
FormBook win_formbook_w0 win_formbook_auto win_formbook_g0
SH256 hash:
fc72fd04104301dff8f041b736fbfda0b353d9d334d8bc57d70e9f2d9b3eb21f
MD5 hash:
c84fe8d8b80e63f94c93ba326e65b5db
SHA1 hash:
b1adb1ffffedbba9da3bcde11091fc57b7ce60b2
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:DebuggerCheck__GlobalFlags
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Active
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Thread
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:Formbook
Author:kevoreilly
Description:Formbook Payload
Rule name:maldoc_find_kernel32_base_method_1
Author:Didier Stevens (https://DidierStevens.com)
Rule name:maldoc_getEIP_method_1
Author:Didier Stevens (https://DidierStevens.com)
Rule name:MD5_Constants
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:meth_get_eip
Author:Willi Ballenthin
Rule name:meth_stackstrings
Author:Willi Ballenthin
Rule name:pe_no_import_table
Description:Detect pe file that no import table
Rule name:RIPEMD160_Constants
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SEH__vectored
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SHA1_Constants
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:Windows_Trojan_Formbook
Author:@malgamy12
Rule name:Windows_Trojan_Formbook_1112e116
Author:Elastic Security
Rule name:win_formbook_auto
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.formbook.
Rule name:win_formbook_w0
Author:@malgamy12

File information


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

Web download

Formbook

Executable exe fc72fd04104301dff8f041b736fbfda0b353d9d334d8bc57d70e9f2d9b3eb21f

(this sample)

  
Delivery method
Distributed via web download

Comments



Avatar
zbet commented on 2023-11-08 07:35:18 UTC

url : hxxps://swamini.in/wp-content/uploads/wpr-addons/forms/macroniska2.1.exe