MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d7c9050d81903010ff6843bceea4331e45f15914ba721f20e01b1eedf33dff13. 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: 9


Intelligence 9 IOCs YARA 2 File information Comments

SHA256 hash: d7c9050d81903010ff6843bceea4331e45f15914ba721f20e01b1eedf33dff13
SHA3-384 hash: ca2d447760bcca4d318c4411df9d00012bcaf7a38f621e855c7c134ea48b87d2b4ff3b01696fdac3bea1ca7daee0ff32
SHA1 hash: 9e984e41ea44792c26cf8f701b42773f2cf9c06c
MD5 hash: 9d9d44a47c0a8e26b887e773f9098ab0
humanhash: coffee-avocado-autumn-colorado
File name:Payment_Advice.exe
Download: download sample
Signature Formbook
File size:76'288 bytes
First seen:2022-10-11 04:51:57 UTC
Last seen:2022-10-12 08:31:04 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'747 x AgentTesla, 19'642 x Formbook, 12'245 x SnakeKeylogger)
ssdeep 1536:acgD9hW4Fi7O8xcIhd9y8x09ubvO67yG47uAzPqurdthad63MRKDMCfYf8u:dgpEsQTxcIhd9y8x09ubvO67yG4SAzP8
TLSH T190738C41E145DCA9E81729F2A86FC930206A7E8D917DC50D368BBB2A45F334710ABE5F
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 a2a2889ca29a9e86 (9 x Formbook, 1 x SnakeKeylogger, 1 x AgentTesla)
Reporter cocaman
Tags:exe FormBook payment

Intelligence


File Origin
# of uploads :
2
# of downloads :
227
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
DNS request
Sending an HTTP GET request
Sending a custom TCP request
Launching a process
Creating a process with a hidden window
Creating a file in the %AppData% subdirectories
Creating a file
Launching cmd.exe command interpreter
Searching for synchronization primitives
Setting browser functions hooks
Query of malicious DNS domain
Sending a TCP request to an infection source
Enabling autorun by creating a file
Unauthorized injection to a system process
Unauthorized injection to a browser process
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 potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Creates an undocumented autostart registry key
Drops executable to a common third party application directory
Encrypted powershell cmdline option found
Executable has a suspicious name (potential lure to open the executable)
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
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)
Snort IDS alert for network traffic
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Writes to foreign memory regions
Yara detected Costura Assembly Loader
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 720215 Sample: Payment_Advice.exe Startdate: 11/10/2022 Architecture: WINDOWS Score: 100 35 Snort IDS alert for network traffic 2->35 37 Multi AV Scanner detection for domain / URL 2->37 39 Malicious sample detected (through community Yara rule) 2->39 41 12 other signatures 2->41 7 Payment_Advice.exe 15 7 2->7         started        process3 dnsIp4 29 fullline.com.my 15.235.144.173, 443, 49700 HP-INTERNET-ASUS United States 7->29 31 images.pexels.com 104.17.208.102, 49698, 80 CLOUDFLARENETUS United States 7->31 33 104.17.209.102, 443, 49699 CLOUDFLARENETUS United States 7->33 23 C:\Users\user\AppData\Roaming\...\cloud.exe, PE32 7->23 dropped 25 C:\Users\user\...\cloud.exe:Zone.Identifier, ASCII 7->25 dropped 27 C:\Users\user\...\Payment_Advice.exe.log, ASCII 7->27 dropped 43 Creates an undocumented autostart registry key 7->43 45 Encrypted powershell cmdline option found 7->45 47 Writes to foreign memory regions 7->47 49 2 other signatures 7->49 12 MSBuild.exe 7->12         started        15 MSBuild.exe 7->15         started        17 powershell.exe 15 7->17         started        file5 signatures6 process7 signatures8 51 Modifies the context of a thread in another process (thread injection) 12->51 53 Maps a DLL or memory area into another process 12->53 55 Queues an APC in another process (thread injection) 12->55 19 explorer.exe 12->19 injected 57 Tries to detect virtualization through RDTSC time measurements 15->57 21 conhost.exe 17->21         started        process9
Threat name:
ByteCode-MSIL.Trojan.FormBook
Status:
Malicious
First seen:
2022-10-11 03:19:05 UTC
File Type:
PE (.Net Exe)
Extracted files:
4
AV detection:
22 of 26 (84.62%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:fs44 rat spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
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
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
d7c9050d81903010ff6843bceea4331e45f15914ba721f20e01b1eedf33dff13
MD5 hash:
9d9d44a47c0a8e26b887e773f9098ab0
SHA1 hash:
9e984e41ea44792c26cf8f701b42773f2cf9c06c
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 d7c9050d81903010ff6843bceea4331e45f15914ba721f20e01b1eedf33dff13

(this sample)

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