MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 72fd8d816c54cacc80a7364d61fccfb6f4c2b9a88ed0cb9296e038b615731cfb. 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: 13


Intelligence 13 IOCs YARA 2 File information Comments

SHA256 hash: 72fd8d816c54cacc80a7364d61fccfb6f4c2b9a88ed0cb9296e038b615731cfb
SHA3-384 hash: ce022d2bf5d7b027b57075e5319982799650cd09289da49d9c491a82eef5c96f860ea2bb137eb9a035bd9254107020f9
SHA1 hash: e085ae7d3b35f036ebf49076869203a29d9db3c0
MD5 hash: 2424734321f03e8048202f10ba707c29
humanhash: rugby-red-cardinal-lima
File name:VQC612aN8kkRJe9.exe
Download: download sample
Signature Formbook
File size:591'872 bytes
First seen:2022-07-21 08:28:43 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:BP0uBT2iNgx8wHWYaRNx7MPIFooCEA8tb9Yt1CQo4:Z/T1+x5ha57BooCE1nWw
TLSH T183C4E094F6C4C17EE4FBCB7D0BE464717BE1E5129609E07E7EA01D8E4A22FC48942972
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 GovCERT_CH
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
246
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Sending a custom TCP request
Unauthorized injection to a recently created process
Creating a file
Сreating synchronization primitives
Launching a process
Launching cmd.exe command interpreter
Searching for synchronization primitives
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
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 contains very large strings
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 submitted file
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 sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Uses netstat to query active network connections and open ports
Yara detected AntiVM3
Yara detected FormBook
Yara detected Generic Downloader
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 670949 Sample: VQC612aN8kkRJe9.exe Startdate: 21/07/2022 Architecture: WINDOWS Score: 100 29 www.fastbusinessloansdac.com 2->29 31 fastbusinessloansdac.com 2->31 45 Snort IDS alert for network traffic 2->45 47 Malicious sample detected (through community Yara rule) 2->47 49 Antivirus detection for URL or domain 2->49 51 9 other signatures 2->51 10 VQC612aN8kkRJe9.exe 3 2->10         started        signatures3 process4 file5 27 C:\Users\user\...\VQC612aN8kkRJe9.exe.log, ASCII 10->27 dropped 53 Uses netstat to query active network connections and open ports 10->53 55 Tries to detect virtualization through RDTSC time measurements 10->55 57 Injects a PE file into a foreign processes 10->57 14 VQC612aN8kkRJe9.exe 10->14         started        signatures6 process7 signatures8 59 Modifies the context of a thread in another process (thread injection) 14->59 61 Maps a DLL or memory area into another process 14->61 63 Sample uses process hollowing technique 14->63 65 Queues an APC in another process (thread injection) 14->65 17 NETSTAT.EXE 14->17         started        20 explorer.exe 14->20 injected process9 dnsIp10 37 Modifies the context of a thread in another process (thread injection) 17->37 39 Maps a DLL or memory area into another process 17->39 41 Tries to detect virtualization through RDTSC time measurements 17->41 23 cmd.exe 1 17->23         started        33 www.wqhzs0476.com 162.214.234.146, 49834, 80 UNIFIEDLAYER-AS-1US United States 20->33 35 www.neckbone.site 209.17.116.163, 49833, 80 DEFENSE-NETUS United States 20->35 43 System process connects to network (likely due to code injection or exploit) 20->43 signatures11 process12 process13 25 conhost.exe 23->25         started       
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2022-07-21 06:30:09 UTC
File Type:
PE (.Net Exe)
Extracted files:
10
AV detection:
21 of 26 (80.77%)
Threat level:
  5/5
Result
Malware family:
xloader
Score:
  10/10
Tags:
family:formbook family:xloader campaign:zzun loader persistence rat spyware stealer 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
Drops file in Program Files directory
Suspicious use of SetThreadContext
Adds Run key to start application
Checks computer location settings
Deletes itself
Reads user/profile data of web browsers
Adds policy Run key to start application
Xloader payload
Formbook
Xloader
Unpacked files
SH256 hash:
ee9ec9235d458bb33e41db184aa746585f7527f05d4aaa83717128e88c7670bf
MD5 hash:
a4668905f7f49315c266e588c0d01b14
SHA1 hash:
f5495dd27a3fd03c33e7ac38f26d944d14217804
Detections:
win_formbook_g0 win_formbook_auto
SH256 hash:
5e97ccd8dafcb36b3cb772f6a2fd425abcf221ab9ea1930e8c2618c95332f2c6
MD5 hash:
01800f6b045def8d90c649842f56d752
SHA1 hash:
f8434a4636d0772d01aac44bb3f9753a41f01d34
SH256 hash:
8753913491d6b6fafa709d1451fd1d8f63c6d8d6fc2a4e6bbbdfe77da4037c3a
MD5 hash:
2e8dcab659d36ec9dc9045e1b3986345
SHA1 hash:
f3b0656c8b573e89a0cc7f218acfc7f639a442a7
SH256 hash:
72fd8d816c54cacc80a7364d61fccfb6f4c2b9a88ed0cb9296e038b615731cfb
MD5 hash:
2424734321f03e8048202f10ba707c29
SHA1 hash:
e085ae7d3b35f036ebf49076869203a29d9db3c0
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: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.

Malspam

Formbook

Executable exe 72fd8d816c54cacc80a7364d61fccfb6f4c2b9a88ed0cb9296e038b615731cfb

(this sample)

  
Dropped by
formbook
  
Delivery method
Distributed via e-mail attachment

Comments