MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6959e78db6f5ebf3c0c86c05868e281a3013cdfcc3a57440ec8a24ab43506af8. 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 7 File information Comments

SHA256 hash: 6959e78db6f5ebf3c0c86c05868e281a3013cdfcc3a57440ec8a24ab43506af8
SHA3-384 hash: ace6635dabe408b0c797d50b73aec191777f5b4572b1238ca576231813c1e04e5807fd9102c56044e58b848406c50ed4
SHA1 hash: f968a02346a39e5484ea9280382c9c0d7d77f13f
MD5 hash: 5b696400216967545b512c498c1e5086
humanhash: alabama-hawaii-equal-item
File name:SecuriteInfo.com.W32.AIDetectNet.01.19438.29162
Download: download sample
Signature Formbook
File size:403'152 bytes
First seen:2022-06-17 05:32:28 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 6144:RI58s3XgmEgN1zhdHKV5rQeF/VZShsMs3Wi+iB8L:QlwmX9whD/ksMuaz
TLSH T1AA84BD2B769D8B1CC34489F175FB923013A1DFA71532EE49BDC4FE6D497226E6A002C8
TrID 52.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
22.4% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
7.5% (.EXE) Win64 Executable (generic) (10523/12/4)
4.7% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
File icon (PE):PE icon
dhash icon 6ccccc9cc4d8e8f4 (41 x Formbook, 34 x AgentTesla, 3 x AveMariaRAT)
Reporter SecuriteInfoCom
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
265
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Launching a process
Creating a file
Сreating synchronization primitives
Launching cmd.exe command interpreter
Searching for synchronization primitives
DNS request
Sending an HTTP GET request
Forced shutdown of a system process
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
obfuscated overlay packed
Result
Verdict:
UNKNOWN
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 method to dynamically call methods (often used by packers)
.NET source code references suspicious native API functions
Allocates memory in foreign processes
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Detected potential unwanted application
Icon mismatch, binary includes an icon from a different legit application in order to fool users
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 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
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 647404 Sample: SecuriteInfo.com.W32.AIDete... Startdate: 17/06/2022 Architecture: WINDOWS Score: 100 33 www.bidvastil.com 2->33 41 Snort IDS alert for network traffic 2->41 43 Malicious sample detected (through community Yara rule) 2->43 45 Antivirus detection for URL or domain 2->45 47 8 other signatures 2->47 11 SecuriteInfo.com.W32.AIDetectNet.01.19438.exe 1 2->11         started        signatures3 process4 file5 31 SecuriteInfo.com.W...et.01.19438.exe.log, ASCII 11->31 dropped 59 Writes to foreign memory regions 11->59 61 Allocates memory in foreign processes 11->61 63 Injects a PE file into a foreign processes 11->63 65 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 11->65 15 cvtres.exe 11->15         started        18 cvtres.exe 11->18         started        signatures6 process7 signatures8 67 Modifies the context of a thread in another process (thread injection) 15->67 69 Maps a DLL or memory area into another process 15->69 71 Sample uses process hollowing technique 15->71 73 Queues an APC in another process (thread injection) 15->73 20 explorer.exe 15->20 injected 75 Tries to detect virtualization through RDTSC time measurements 18->75 process9 dnsIp10 35 www.kreditkarten-optionde.com 185.53.179.94, 49763, 80 TEAMINTERNET-ASDE Germany 20->35 37 www.tasteatlus.com 170.178.168.203, 49826, 80 ST-BGPUS United States 20->37 39 9 other IPs or domains 20->39 49 System process connects to network (likely due to code injection or exploit) 20->49 51 Performs DNS queries to domains with low reputation 20->51 24 wscript.exe 20->24         started        signatures11 process12 signatures13 53 Modifies the context of a thread in another process (thread injection) 24->53 55 Maps a DLL or memory area into another process 24->55 57 Tries to detect virtualization through RDTSC time measurements 24->57 27 cmd.exe 1 24->27         started        process14 process15 29 conhost.exe 27->29         started       
Threat name:
ByteCode-MSIL.Trojan.FormBook
Status:
Malicious
First seen:
2022-06-17 02:49:47 UTC
File Type:
PE (.Net Exe)
Extracted files:
15
AV detection:
20 of 26 (76.92%)
Threat level:
  5/5
Result
Malware family:
xloader
Score:
  10/10
Tags:
family:formbook family:xloader campaign:tn61 loader persistence rat spyware stealer suricata trojan
Behaviour
Modifies Internet Explorer settings
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
System policy modification
Drops file in Program Files directory
Suspicious use of SetThreadContext
Adds Run key to start application
Reads user/profile data of web browsers
Adds policy Run key to start application
Executes dropped EXE
Xloader Payload
Formbook
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
c255e016dab3d29f31f8ab97b4a51e424267fd456a7a7b1fad5610b4c2b97fc0
MD5 hash:
dc42037bc83489ba6ac2513a184590c3
SHA1 hash:
26e3e9e7a3d125b7c9926a11ffcf61b8f4d5f405
Detections:
win_formbook_g0 win_formbook_auto
SH256 hash:
6e7f03adbab35c8c0667e6d4fc8f3424459ebc530559039a95495ab76e2988df
MD5 hash:
6d3785b13858200e6e594047aa9078b2
SHA1 hash:
1b6f3082b880228f6dc8ccc0536055cbc1027d7f
SH256 hash:
6959e78db6f5ebf3c0c86c05868e281a3013cdfcc3a57440ec8a24ab43506af8
MD5 hash:
5b696400216967545b512c498c1e5086
SHA1 hash:
f968a02346a39e5484ea9280382c9c0d7d77f13f
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:exploit_any_poppopret
Author:Jeff White [karttoon@gmail.com] @noottrak
Description:Identify POP -> POP -> RET opcodes for quick ROP Gadget creation in target binaries.
Rule name:malware_Formbook_strings
Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
Rule name:meth_get_eip
Author:Willi Ballenthin
Rule name:meth_stackstrings
Author:Willi Ballenthin
Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
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