MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c48c1d65bf3e58d5dc4b9876db6da4d90e93ca74b4b51cd35c7b7400d691c182. 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 1 File information Comments

SHA256 hash: c48c1d65bf3e58d5dc4b9876db6da4d90e93ca74b4b51cd35c7b7400d691c182
SHA3-384 hash: 4ec832d5ecafd354319f7d2bfd4573573c7746c43991da1802f52e518dbc531307f4b5ddb6e38ace0d1b1f2db1061146
SHA1 hash: 6f2d34c95b6d4313074ff8111ebbe27ab76fdb70
MD5 hash: 83804c210ecdae26f284783ae9ed4cd0
humanhash: eighteen-potato-victor-grey
File name:c48c1d65bf3e58d5dc4b9876db6da4d90e93ca74b4b51cd35c7b7400d691c182
Download: download sample
Signature Formbook
File size:1'167'479 bytes
First seen:2023-07-06 09:48:12 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 12e12319f1029ec4f8fcbed7e82df162 (390 x DCRat, 52 x RedLineStealer, 51 x Formbook)
ssdeep 24576:wTbBv5rUk0FHSdWGawARX8l45tHwoD9sfBnX7SWXMdAfRd//PA:iB3aydWZRX8l45tHwoDaRXPMUlA
Threatray 3'171 similar samples on MalwareBazaar
TLSH T1984512017BC590B2C0721C325A7A5B61B63DBE601FA5CECF53D07A6E9A326C0D7317A2
TrID 89.0% (.EXE) WinRAR Self Extracting archive (4.x-5.x) (265042/9/39)
3.5% (.EXE) Win64 Executable (generic) (10523/12/4)
2.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
1.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
1.5% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon f0e0f22abae6e074 (3 x Formbook, 1 x AgentTesla)
Reporter adrian__luca
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
262
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
c48c1d65bf3e58d5dc4b9876db6da4d90e93ca74b4b51cd35c7b7400d691c182
Verdict:
Suspicious activity
Analysis date:
2023-07-06 09:47:37 UTC
Tags:
autoit

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

Behaviour
Creating a window
Searching for the window
Сreating synchronization primitives
Searching for synchronization primitives
Creating a file in the %temp% subdirectories
Enabling the 'hidden' option for files in the %temp% directory
Launching a process
Running batch commands
Creating a process with a hidden window
Creating a process from a recently created file
Sending a UDP request
Creating a file
DNS request
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm autoit cmd control greyware keylogger lolbin nanocore overlay packed replace setupapi shdocvw shell32 wscript wscript
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
Allocates memory in foreign processes
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Starts an encoded Visual Basic Script (VBE)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses ipconfig to lookup or modify the Windows network settings
Writes to foreign memory regions
Yara detected AntiVM autoit script
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1267978 Sample: WHG5AzM7to.exe Startdate: 06/07/2023 Architecture: WINDOWS Score: 100 46 Malicious sample detected (through community Yara rule) 2->46 48 Multi AV Scanner detection for submitted file 2->48 50 Yara detected FormBook 2->50 52 2 other signatures 2->52 9 WHG5AzM7to.exe 65 2->9         started        process3 file4 42 C:\Users\user\AppData\Local\...\rehir.bmp, PE32 9->42 dropped 62 Starts an encoded Visual Basic Script (VBE) 9->62 13 wscript.exe 1 9->13         started        signatures5 process6 process7 15 cmd.exe 1 13->15         started        17 cmd.exe 1 13->17         started        20 cmd.exe 1 13->20         started        signatures8 22 rehir.bmp 1 3 15->22         started        26 conhost.exe 15->26         started        44 Uses ipconfig to lookup or modify the Windows network settings 17->44 28 conhost.exe 17->28         started        30 ipconfig.exe 1 17->30         started        32 conhost.exe 20->32         started        34 ipconfig.exe 1 20->34         started        process9 file10 40 C:\Users\user\AppData\Local\...\RegSvcs.exe, PE32 22->40 dropped 54 Multi AV Scanner detection for dropped file 22->54 56 Writes to foreign memory regions 22->56 58 Allocates memory in foreign processes 22->58 60 Injects a PE file into a foreign processes 22->60 36 RegSvcs.exe 22->36         started        38 RegSvcs.exe 22->38         started        signatures11 process12
Threat name:
Win32.Trojan.Leonem
Status:
Malicious
First seen:
2023-06-09 18:48:00 UTC
File Type:
PE (Exe)
Extracted files:
88
AV detection:
30 of 38 (78.95%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  7/10
Tags:
persistence
Behaviour
Gathers network information
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Suspicious use of SetThreadContext
Adds Run key to start application
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Unpacked files
SH256 hash:
c48c1d65bf3e58d5dc4b9876db6da4d90e93ca74b4b51cd35c7b7400d691c182
MD5 hash:
83804c210ecdae26f284783ae9ed4cd0
SHA1 hash:
6f2d34c95b6d4313074ff8111ebbe27ab76fdb70
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:SelfExtractingRAR
Author:Xavier Mertens
Description:Detects an SFX archive with automatic script execution

File information


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

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