MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c9062d78ee63874928e2d332a8ed0570e99bc06e544e33f002b26f70e0c19510. 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: 17


Intelligence 17 IOCs YARA 5 File information Comments

SHA256 hash: c9062d78ee63874928e2d332a8ed0570e99bc06e544e33f002b26f70e0c19510
SHA3-384 hash: 4b391b9afb7ccf1371b284168b162a4a5f16814525993731d2a87402864925ff5da9b5c97bbd6f4a49775abd2b01c31e
SHA1 hash: 864aaa5821e9f3e99da71eff1c8b76bcd1cdea80
MD5 hash: e34c33903020a81f3a09a69c29ade426
humanhash: tango-bulldog-angel-asparagus
File name:UnmxRI.exe
Download: download sample
Signature Formbook
File size:1'097'216 bytes
First seen:2024-08-30 05:16:10 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'853 x AgentTesla, 19'779 x Formbook, 12'304 x SnakeKeylogger)
ssdeep 12288:iyQaMFM0Mvxv96lPGfGAS3aczHjOpJ5bX9Ek1GgO5vcJX32n4DVRTIVEhbWy:iyjv9olufGasDO1JkgkcJ2nyVRTFhb
Threatray 683 similar samples on MalwareBazaar
TLSH T12A35A03D1DF88227B978D6A6DFA0C432B061D6EFF5629D29D4D746818702A03B4C71BE
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Magika pebin
Reporter adm1n_usa32
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
455
Origin country :
RO RO
Vendor Threat Intelligence
Malware family:
formbook
ID:
1
File name:
UnmxRI.exe
Verdict:
Malicious activity
Analysis date:
2024-08-30 05:13:43 UTC
Tags:
netreactor formbook xloader stealer

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
99.1%
Tags:
Execution Generic Network Static Stealth Malware
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Creating a process with a hidden window
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a file in the %temp% directory
Launching a process
Restart of the analyzed sample
Adding an exclusion to Microsoft Defender
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
nanocore
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.
Malware family:
MSIL Injector
Verdict:
Malicious
Result
Threat name:
FormBook, PureLog Stealer
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
.NET source code contains very large strings
Adds a directory exclusion to Windows Defender
AI detected suspicious sample
Antivirus detection for URL or domain
Found direct / indirect Syscall (likely to bypass EDR)
Injects a PE file into a foreign processes
Loading BitLocker PowerShell Module
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
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Scheduled temp file as task from temp location
Suricata IDS alerts for network traffic
Switches to a custom stack to bypass stack traces
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected FormBook
Yara detected PureLog Stealer
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1501599 Sample: UnmxRI.exe Startdate: 30/08/2024 Architecture: WINDOWS Score: 100 59 www.heilao9.xyz 2->59 61 www.uty803.com 2->61 63 19 other IPs or domains 2->63 75 Multi AV Scanner detection for domain / URL 2->75 77 Suricata IDS alerts for network traffic 2->77 79 Malicious sample detected (through community Yara rule) 2->79 83 12 other signatures 2->83 10 UnmxRI.exe 7 2->10         started        14 tehuvFgZlLZK.exe 5 2->14         started        signatures3 81 Performs DNS queries to domains with low reputation 59->81 process4 file5 51 C:\Users\user\AppData\...\tehuvFgZlLZK.exe, PE32 10->51 dropped 53 C:\Users\...\tehuvFgZlLZK.exe:Zone.Identifier, ASCII 10->53 dropped 55 C:\Users\user\AppData\Local\...\tmpB814.tmp, XML 10->55 dropped 57 C:\Users\user\AppData\...\UnmxRI.exe.log, ASCII 10->57 dropped 93 Uses schtasks.exe or at.exe to add and modify task schedules 10->93 95 Adds a directory exclusion to Windows Defender 10->95 16 UnmxRI.exe 10->16         started        19 powershell.exe 23 10->19         started        21 powershell.exe 23 10->21         started        23 schtasks.exe 1 10->23         started        97 Multi AV Scanner detection for dropped file 14->97 99 Machine Learning detection for dropped file 14->99 25 schtasks.exe 1 14->25         started        27 tehuvFgZlLZK.exe 14->27         started        signatures6 process7 signatures8 71 Maps a DLL or memory area into another process 16->71 29 NUJqNHNKrrpXWLOEvky.exe 16->29 injected 73 Loading BitLocker PowerShell Module 19->73 32 WmiPrvSE.exe 19->32         started        34 conhost.exe 19->34         started        36 conhost.exe 21->36         started        38 conhost.exe 23->38         started        40 conhost.exe 25->40         started        process9 signatures10 101 Found direct / indirect Syscall (likely to bypass EDR) 29->101 42 print.exe 13 29->42         started        process11 signatures12 85 Tries to steal Mail credentials (via file / registry access) 42->85 87 Tries to harvest and steal browser information (history, passwords, etc) 42->87 89 Writes to foreign memory regions 42->89 91 4 other signatures 42->91 45 NUJqNHNKrrpXWLOEvky.exe 42->45 injected 49 firefox.exe 42->49         started        process13 dnsIp14 65 www.hugelmann.org 216.40.34.41, 49751, 49752, 49753 TUCOWSCA Canada 45->65 67 parkingpage.namecheap.com 91.195.240.19, 49717, 49727, 49728 SEDO-ASDE Germany 45->67 69 7 other IPs or domains 45->69 103 Found direct / indirect Syscall (likely to bypass EDR) 45->103 signatures15
Threat name:
ByteCode-MSIL.Backdoor.FormBook
Status:
Malicious
First seen:
2024-08-13 05:28:00 UTC
File Type:
PE (.Net Exe)
Extracted files:
15
AV detection:
23 of 24 (95.83%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  9/10
Tags:
credential_access discovery execution stealer
Behaviour
Modifies Internet Explorer settings
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Checks computer location settings
Command and Scripting Interpreter: PowerShell
Credentials from Password Stores: Credentials from Web Browsers
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
332c10434bf5d8109652f4288ba529a74c07dcead351086ddec85e71ce677805
MD5 hash:
4d901dc7e8125a85179c506dc41104a6
SHA1 hash:
71f26163c15914866cfb204eb0802e1b8e406871
Detections:
win_formbook_g0 win_formbook_w0
SH256 hash:
b7f4f41a850d41fa2c7923e7e1ae1dd625cb9235d97eb70d8c8d6e3d815c1d70
MD5 hash:
c3118e411a9820a248871e0815d27b4c
SHA1 hash:
6b8ee8a2c314c98f6db363a749e2372db487ca14
SH256 hash:
9bd548ca4f53c697a70484a91b968cc096b530ac42464d7ff373fd29f937b48a
MD5 hash:
22d4a053baa16bf1195ccf8c027a64b4
SHA1 hash:
d0762adee1bba1e6ef0ca82d47c66db6c8036775
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24 SUSP_OBF_NET_Reactor_Indicators_Jan24
SH256 hash:
ea6847239b8454de1c89f034bfd564344b3314b3fe9748226019bf17230743ef
MD5 hash:
1b46663de1abc94bd92f81e5688ca068
SHA1 hash:
b957eb5b3edac64e9df7c8d14e2a121a094e01d4
Detections:
SUSP_OBF_NET_Reactor_Indicators_Jan24
SH256 hash:
de59c3246c72163cfc5d3b5a8aec72ec6a585893a6c7d80fbff35238aabe6027
MD5 hash:
c3b2bcacf04baacd6daae4cf4896872c
SHA1 hash:
b7815d4d77ea49e493898d9ce06061e2c9c83feb
SH256 hash:
ed278807068709bcc74ef7d01ce46682b64d8ec9c8466dc8aaeb92ed75495aaa
MD5 hash:
51e85d063788811778e570139e28ac5a
SHA1 hash:
b3a9f24d4d25c91058e6c1f91e07219423b428fa
Detections:
SUSP_OBF_NET_Reactor_Indicators_Jan24
SH256 hash:
c9062d78ee63874928e2d332a8ed0570e99bc06e544e33f002b26f70e0c19510
MD5 hash:
e34c33903020a81f3a09a69c29ade426
SHA1 hash:
864aaa5821e9f3e99da71eff1c8b76bcd1cdea80
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:AgentTesla_DIFF_Common_Strings_01
Author:schmidtsz
Description:Identify partial Agent Tesla strings
Rule name:NET
Author:malware-lu
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.

BLint


The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high

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