MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a150a433c6a3e4278f6cc4cbc85863fc431e5c1e65081ad67253513e8ca01282. 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: 18


Intelligence 18 IOCs YARA 15 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a150a433c6a3e4278f6cc4cbc85863fc431e5c1e65081ad67253513e8ca01282
SHA3-384 hash: 3c2f2ea96a769fef50422066ba867112ef2d57142168c840b3f0467099ac623c0ff2970c21778166676af92b683d0bed
SHA1 hash: 287b0ba049ad8f3be802d2224efb86dba72d3221
MD5 hash: b8d455465260a845db35492fda5a8888
humanhash: saturn-twenty-sad-west
File name:b8d455465260a845db35492fda5a8888
Download: download sample
Signature Formbook
Create hunting rule
File size:64'512 bytes
First seen:2024-05-23 11:51:46 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'747 x AgentTesla, 19'638 x Formbook, 12'244 x SnakeKeylogger)
ssdeep 768:CuY6LVcsTPq781wC8A+XjuazcBRL5JTk1+T4KSBGHmDbD/ph0oX9rAW6dEYSuEdP:reQPckdSJYUbdh9O8uEdpqKmY7
Threatray 2'650 similar samples on MalwareBazaar
TLSH T17B537C003798C965E2AE47B8BCF3550106B1D1772112DA1E3CC810DB6BAFFC65A526FE
TrID 60.4% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.8% (.SCR) Windows screen saver (13097/50/3)
8.7% (.EXE) Win64 Executable (generic) (10523/12/4)
5.4% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.1% (.EXE) Win16 NE executable (generic) (5038/12/1)
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
336
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
asyncrat
Create hunting rule
ID:
1
File name:
a150a433c6a3e4278f6cc4cbc85863fc431e5c1e65081ad67253513e8ca01282.exe
Verdict:
Malicious activity
Analysis date:
2024-05-23 11:53:08 UTC
Tags:
rat asyncrat remote evasion
Link:
https://app.any.run/tasks/f7a8da17-5c11-44ba-90fc-59fdd5d44948

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Win.Packed.Razy-9807129-0
Create hunting rule

Win.Malware.Generickdz-9865912-0
Create hunting rule

Win.Malware.Enigmaprotector-9874743-0
Create hunting rule

Win.Malware.Enigmaprotector-9881027-0
Create hunting rule

Win.Trojan.AsyncRAT-9914220-0
Create hunting rule

Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=664f2e3402cf134c1c7f8587win10vpnfull_triage
Tags:
Execution Network Stealth Trojan
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Running batch commands
Creating a process with a hidden window
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Creating a file
Launching a process
Creating a process from a recently created file
Connection attempt
Sending a custom TCP request
Using the Windows Management Instrumentation requests
Unauthorized injection to a recently created process
Blocking the User Account Control
Blocking the Windows Defender launch
Enabling autorun by creating a file
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
anti-debug anti-vm configsecuritypolicy evasive hacktool lolbin mpcmdrun msconfig njrat rat regedit schtasks
Link:
https://www.filescan.io/uploads/664f2de39ef257851a96f29c/reports/bd6846d9-85eb-4736-9ef3-3b789d5e1397/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/a150a433c6a3e4278f6cc4cbc85863fc431e5c1e65081ad67253513e8ca01282
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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/5716c157-e32e-405c-83dd-269519334f33
Result
Threat name:
AsyncRAT, DcRat
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1446468
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
Binary or sample is protected by dotNetProtector
Check if machine is in data center or colocation facility
Contains functionality to capture screen (.Net source)
Disable UAC(promptonsecuredesktop)
Disables UAC (registry)
Disables Windows Defender (via service or powershell)
Found malware configuration
Found many strings related to Crypto-Wallets (likely being stolen)
Loading BitLocker PowerShell Module
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Modifies Windows Defender protection settings
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queries sensitive Plug and Play Device Information (via WMI, Win32_PnPEntity, often done to detect virtual machines)
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sigma detected: Capture Wi-Fi password
Sigma detected: Invoke-Obfuscation CLIP+ Launcher
Sigma detected: Invoke-Obfuscation VAR+ Launcher
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Powershell Defender Disable Scan Feature
Snort IDS alert for network traffic
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal WLAN passwords
Uses netsh to modify the Windows network and firewall settings
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AsyncRAT
Yara detected Costura Assembly Loader
Yara detected DcRat
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1446468 Sample: t3h7DNer1Q.exe Startdate: 23/05/2024 Architecture: WINDOWS Score: 100 48 ip-api.com 2->48 50 231.12.13.0.in-addr.arpa 2->50 52 2 other IPs or domains 2->52 60 Snort IDS alert for network traffic 2->60 62 Found malware configuration 2->62 64 Malicious sample detected (through community Yara rule) 2->64 66 18 other signatures 2->66 8 Loaader.exe 18 50 2->8         started        12 t3h7DNer1Q.exe 7 2->12         started        signatures3 process4 dnsIp5 54 ip-api.com 208.95.112.1, 49749, 80 TUT-ASUS United States 8->54 56 66.235.168.242, 3232, 49730, 49732 TIER-NETUS United States 8->56 58 2 other IPs or domains 8->58 68 Multi AV Scanner detection for dropped file 8->68 70 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 8->70 72 Found many strings related to Crypto-Wallets (likely being stolen) 8->72 74 8 other signatures 8->74 15 cmd.exe 8->15         started        18 powershell.exe 23 8->18         started        20 powershell.exe 8->20         started        26 14 other processes 8->26 46 C:\Users\user\AppData\Roaming\Loaader.exe, PE32 12->46 dropped 22 cmd.exe 1 12->22         started        24 cmd.exe 1 12->24         started        file6 signatures7 process8 signatures9 42 4 other processes 15->42 76 Loading BitLocker PowerShell Module 18->76 28 conhost.exe 18->28         started        30 conhost.exe 20->30         started        78 Uses schtasks.exe or at.exe to add and modify task schedules 22->78 80 Uses netsh to modify the Windows network and firewall settings 22->80 82 Tries to harvest and steal WLAN passwords 22->82 32 conhost.exe 22->32         started        34 schtasks.exe 1 22->34         started        36 Loaader.exe 3 24->36         started        38 conhost.exe 24->38         started        40 timeout.exe 1 24->40         started        44 16 other processes 26->44 process10
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/a150a433c6a3e4278f6cc4cbc85863fc431e5c1e65081ad67253513e8ca01282
Detection:
dcrat
Create hunting rule
Link:
https://mwdb.cert.pl/sample/a150a433c6a3e4278f6cc4cbc85863fc431e5c1e65081ad67253513e8ca01282/
Threat name:
ByteCode-MSIL.Backdoor.AsyncRAT
Create hunting rule
Status:
Malicious
First seen:
2024-05-23 10:53:28 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
23 of 24 (95.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ufikim6gupscpd3mytf4qwdd7rbr4xa6muebvvtsknit5dfackba._file
Verdict:
malicious
Similar samples:
1864a38b10dbaa7cc52167986e7575d6464c3eee49a971f3c78fc87d7e16492a
Formbook
5edf7cb9422a1b24892a23b207c9d5c18040963c5577b80ecef7e84c46abac63
Formbook
72ae820b13a8e8f73da2770b9c0bd9d0a6a42e2ba3dcaf1279359e2b2b221b12
Formbook
7e04a7eeae48ca854ec1f474f0ed98831c17b38dbe83756cf8e126d1af22e0b2
Formbook
826c93b5f8974e81c812e7f11c63d33b8cfdc84f45c402ae22e7794dc81e5893
Formbook
8d11ec5c3f5b3d5eb57e75469ffc10721aee94ae56b3d432fafdee189bb0d6e8
Formbook
a6b1b7d8e053732c2666794d0cde08b09a30470e004a5de78f4ee70d471fbde1
Formbook
ee4d85ac224083fe3196c5faecf50c3cbec38e160a6a61ed3fd691cea18947e9
Formbook
+ 2'640 additional samples on MalwareBazaar
Result
Malware family:
asyncrat
Create hunting rule
Score:
  10/10
Tags:
family:asyncrat botnet:default evasion rat trojan
Link:
https://tria.ge/reports/240523-n1qa3sfd48/
Behaviour
Creates scheduled task(s)
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
System policy modification
Uses Task Scheduler COM API
Enumerates physical storage devices
Checks whether UAC is enabled
Checks computer location settings
Executes dropped EXE
Windows security modification
Async RAT payload
AsyncRat
Modifies Windows Defender Real-time Protection settings
UAC bypass
Malware Config
C2 Extraction:
66.235.168.242:3232
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/bf34af8c-955d-4ca2-a4b4-8749abb88676
Unpacked files
SH256 hash:
a150a433c6a3e4278f6cc4cbc85863fc431e5c1e65081ad67253513e8ca01282
MD5 hash:
b8d455465260a845db35492fda5a8888
SHA1 hash:
287b0ba049ad8f3be802d2224efb86dba72d3221
Detections:
DCRat
Create hunting rule
AsyncRAT
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_WMI_EnumerateVideoDevice
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_DcRatBy
Create hunting rule
Link:
https://www.unpac.me/results/78446936-29af-4413-9ef8-ba31eeadac27/
Parent samples :
a150a433c6a3e4278f6cc4cbc85863fc431e5c1e65081ad67253513e8ca01282
e3f245020bcf6beaca39b8cc9eb06b3db7f209356e765f41d8306ad56735e944
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
iSpy Keylogger
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/a150a433c6a3e4278f6cc4cbc85863fc431e5c1e65081ad67253513e8ca01282

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:dcrat
Create hunting rule
Author:jeFF0Falltrades
Rule name:DebuggerCheck__RemoteAPI
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:INDICATOR_SUSPICIOUS_EXE_DcRatBy
Create hunting rule
Author:ditekSHen
Description:Detects executables containing the string DcRatBy
Rule name:INDICATOR_SUSPICIOUS_EXE_WMI_EnumerateVideoDevice
Create hunting rule
Author:ditekSHen
Description:Detects executables attemping to enumerate video devices using WMI
Rule name:MAL_AsnycRAT
Create hunting rule
Author:SECUINFRA Falcon Team
Description:Detects AsnycRAT based on it's config decryption routine
Rule name:MAL_AsyncRAT_Config_Decryption
Create hunting rule
Author:SECUINFRA Falcon Team
Description:Detects AsnycRAT based on it's config decryption routine
Rule name:Multifamily_RAT_Detection
Create hunting rule
Author:Lucas Acha (http://www.lukeacha.com)
Description:Generic Detection for multiple RAT families, PUPs, Packers and suspicious executables
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:Njrat
Create hunting rule
Author:botherder https://github.com/botherder
Description:Njrat
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:SUSP_DOTNET_PE_List_AV
Create hunting rule
Author:SECUINFRA Falcon Team
Description:Detecs .NET Binary that lists installed AVs
Rule name:Windows_Generic_Threat_ce98c4bc
Create hunting rule
Author:Elastic Security
Rule name:win_asyncrat_unobfuscated
Create hunting rule
Author:Matthew @ Embee_Research
Description:Detects strings present in unobfuscated AsyncRat Samples. Rule may also pick up on other Asyncrat-derived malware (Dcrat/venom etc)

File information

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

Web download

Formbook

Executable exe a150a433c6a3e4278f6cc4cbc85863fc431e5c1e65081ad67253513e8ca01282

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2860516/

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

Comments


Avatar
zbet commented on 2024-05-23 11:51:47 UTC

url : hxxp://66.235.168.242/CLients/Infected.exe