MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3b34953deae6c8417e568d2563d613483b88df24edfd217d6d95c8eba84aab7f. 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 4 File information Comments

SHA256 hash: 3b34953deae6c8417e568d2563d613483b88df24edfd217d6d95c8eba84aab7f
SHA3-384 hash: 0512e103e67e5c8af85b9b6b27fdda75e7a42daa06f13f59cf71bdcb454f7ff5d98d1d99779d7d53a2bdca26e9b61ddf
SHA1 hash: acf726cf4e86bdc5a59a943e8e428fab5b89cf6b
MD5 hash: 0a5ff5c312a817303b28821feff310e6
humanhash: carpet-jupiter-alpha-victor
File name:thirdhussanzx.exe
Download: download sample
Signature Formbook
File size:228'352 bytes
First seen:2022-08-30 14:55:11 UTC
Last seen:2022-08-31 08:30:18 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'453 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 3072:oQHNmk8c/c8LYxWk3T/PBtRBJjWs7qMHfldMW/3e8kXW6KWal:qBrWkj/PrRBJjExMp
TLSH T148244B26BBC8D523E25B97FAC1A7E696C3F880A0E75FD7CF1C4441E82902360E469747
TrID 64.2% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.5% (.SCR) Windows screen saver (13101/52/3)
9.2% (.EXE) Win64 Executable (generic) (10523/12/4)
5.7% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.9% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter James_inthe_box
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
3
# of downloads :
358
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
ID:
1
File name:
thirdhussanzx.exe
Verdict:
Malicious activity
Analysis date:
2022-08-30 14:56:43 UTC
Tags:
opendir loader 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
Сreating synchronization primitives
Sending an HTTP GET request
Launching a process
Creating a file
Searching for synchronization primitives
Launching cmd.exe command interpreter
Sending a custom TCP request
Setting browser functions hooks
Enabling autorun by creating a file
Unauthorized injection to a system process
Unauthorized injection to a browser process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
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
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
C2 URLs / IPs found in 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 domain / URL
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Suspicious powershell command line found
Tries to detect virtualization through RDTSC time measurements
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 693144 Sample: thirdhussanzx.exe Startdate: 30/08/2022 Architecture: WINDOWS Score: 100 45 Multi AV Scanner detection for domain / URL 2->45 47 Malicious sample detected (through community Yara rule) 2->47 49 Antivirus detection for URL or domain 2->49 51 6 other signatures 2->51 10 thirdhussanzx.exe 15 5 2->10         started        process3 dnsIp4 43 37.139.129.142, 49726, 49749, 80 LVLT-10753US Germany 10->43 41 C:\Users\user\...\thirdhussanzx.exe.log, ASCII 10->41 dropped 65 Writes to foreign memory regions 10->65 67 Allocates memory in foreign processes 10->67 69 Injects a PE file into a foreign processes 10->69 15 RegAsm.exe 10->15         started        file5 signatures6 process7 signatures8 71 Modifies the context of a thread in another process (thread injection) 15->71 73 Maps a DLL or memory area into another process 15->73 75 Sample uses process hollowing technique 15->75 77 2 other signatures 15->77 18 explorer.exe 15->18 injected process9 signatures10 53 Suspicious powershell command line found 18->53 21 powershell.exe 17 18->21         started        24 cmmon32.exe 18->24         started        26 WWAHost.exe 18->26         started        process11 signatures12 61 Suspicious powershell command line found 21->61 28 thirdhussanzx.exe 3 21->28         started        30 powershell.exe 16 21->30         started        32 conhost.exe 1 21->32         started        63 Tries to detect virtualization through RDTSC time measurements 24->63 34 cmd.exe 1 24->34         started        process13 process14 36 RegAsm.exe 28->36         started        39 conhost.exe 34->39         started        signatures15 55 Modifies the context of a thread in another process (thread injection) 36->55 57 Maps a DLL or memory area into another process 36->57 59 Sample uses process hollowing technique 36->59
Threat name:
ByteCode-MSIL.Trojan.FormBook
Status:
Malicious
First seen:
2022-08-30 02:08:31 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
26 of 41 (63.41%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:fs93 rat spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Suspicious use of SetThreadContext
Drops startup file
Downloads MZ/PE file
Formbook payload
Formbook
Unpacked files
SH256 hash:
3b34953deae6c8417e568d2563d613483b88df24edfd217d6d95c8eba84aab7f
MD5 hash:
0a5ff5c312a817303b28821feff310e6
SHA1 hash:
acf726cf4e86bdc5a59a943e8e428fab5b89cf6b
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:meth_get_eip
Author:Willi Ballenthin
Rule name:pdb_YARAify
Author:@wowabiy314
Description:PDB
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.

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