MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3046a58999ef12bbe6472b373836767bf4e5fd15a50e14d26f7e344c033e61d3. 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: 16


Intelligence 16 IOCs YARA 3 File information Comments 1

SHA256 hash: 3046a58999ef12bbe6472b373836767bf4e5fd15a50e14d26f7e344c033e61d3
SHA3-384 hash: 79dd314310b687725e77669b301f43360f4381ca90fb01042b1565b26a22d12ade3419dcc26db789c7f1508ce1d2ba2e
SHA1 hash: 73b143cbc66746f06b2756fbc42a147e7152151b
MD5 hash: 4402cd3692819805d31e776c6387f23b
humanhash: maryland-sad-mountain-undress
File name:4402cd3692819805d31e776c6387f23b
Download: download sample
Signature Formbook
File size:31'232 bytes
First seen:2022-06-14 12:48:13 UTC
Last seen:2022-06-14 13:49:00 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 768:GIbY4Nf7oGFYwQ8XvLWRgcL0ST8iNxy2X:GIbYCF7XWRgcL9HNxvX
TLSH T179E2CF1BF3948B3AE9B107725EB397000B74E052CD13DB6F7880660B7E263A20952BB5
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon b28ccaacda53d39b (34 x Formbook, 1 x BitRAT, 1 x SnakeKeylogger)
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence


File Origin
# of uploads :
2
# of downloads :
237
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
ID:
1
File name:
4402cd3692819805d31e776c6387f23b
Verdict:
Malicious activity
Analysis date:
2022-06-14 22:59:14 UTC
Tags:
formbook trojan stealer

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Sending an HTTP GET request
Sending a custom TCP request
Сreating synchronization primitives
DNS request
Running batch commands
Creating a process with a hidden window
Creating a file in the %AppData% subdirectories
Creating a file
Searching for synchronization primitives
Launching cmd.exe command interpreter
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
obfuscated packed palevo
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
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Creates an undocumented autostart registry key
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)
Multi AV Scanner detection for domain / URL
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
Tries to detect virtualization through RDTSC time measurements
Yara detected Costura Assembly Loader
Yara detected FormBook
Yara detected Generic Downloader
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 645396 Sample: XTH03uNK1q Startdate: 14/06/2022 Architecture: WINDOWS Score: 100 59 Snort IDS alert for network traffic 2->59 61 Multi AV Scanner detection for domain / URL 2->61 63 Malicious sample detected (through community Yara rule) 2->63 65 10 other signatures 2->65 10 XTH03uNK1q.exe 15 7 2->10         started        15 smartscreen.exe 2->15         started        process3 dnsIp4 47 lambweston.ga 192.185.174.179, 49790, 80 UNIFIEDLAYER-AS-1US United States 10->47 41 C:\Users\user\AppData\Roaming\...\Rwdxydg.exe, PE32 10->41 dropped 43 C:\Users\user\...\Rwdxydg.exe:Zone.Identifier, ASCII 10->43 dropped 45 C:\Users\user\AppData\...\XTH03uNK1q.exe.log, ASCII 10->45 dropped 73 Creates an undocumented autostart registry key 10->73 17 MSBuild.exe 10->17         started        20 cmd.exe 1 10->20         started        22 powershell.exe 15 10->22         started        49 canonicalizer.ucsuri.tcs 15->49 file5 signatures6 process7 signatures8 51 Modifies the context of a thread in another process (thread injection) 17->51 53 Maps a DLL or memory area into another process 17->53 55 Sample uses process hollowing technique 17->55 57 2 other signatures 17->57 24 explorer.exe 2 155 17->24         started        26 explorer.exe 17->26 injected 28 conhost.exe 20->28         started        30 timeout.exe 1 20->30         started        32 conhost.exe 22->32         started        process9 process10 34 chkdsk.exe 24->34         started        signatures11 67 Modifies the context of a thread in another process (thread injection) 34->67 69 Maps a DLL or memory area into another process 34->69 71 Tries to detect virtualization through RDTSC time measurements 34->71 37 cmd.exe 34->37         started        process12 process13 39 conhost.exe 37->39         started       
Threat name:
ByteCode-MSIL.Worm.Palevo
Status:
Malicious
First seen:
2022-06-14 10:11:58 UTC
File Type:
PE (.Net Exe)
Extracted files:
6
AV detection:
9 of 41 (21.95%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:s4s9 rat spyware stealer suricata trojan
Behaviour
Delays execution with timeout.exe
Gathers network information
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Formbook Payload
Formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
3046a58999ef12bbe6472b373836767bf4e5fd15a50e14d26f7e344c033e61d3
MD5 hash:
4402cd3692819805d31e776c6387f23b
SHA1 hash:
73b143cbc66746f06b2756fbc42a147e7152151b
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:INDICATOR_EXE_Packed_SmartAssembly
Author:ditekSHen
Description:Detects executables packed with SmartAssembly
Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash

File information


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

Web download

Formbook

Executable exe 3046a58999ef12bbe6472b373836767bf4e5fd15a50e14d26f7e344c033e61d3

(this sample)

  
Delivery method
Distributed via web download

Comments



Avatar
zbet commented on 2022-06-14 12:48:20 UTC

url : hxxp://104.168.32.14/m/efx.exe