MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 404c6e6bc552d4c16f6ef3870e36431da3cd6bfa6ea5f283ddeeb3fb320b3713. 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 17 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 404c6e6bc552d4c16f6ef3870e36431da3cd6bfa6ea5f283ddeeb3fb320b3713
SHA3-384 hash: b6bde1bfc6ddf797d6eda7baef96737d1663952dee2d20dad50dcd1cb3988be42b37966d4758e8fa4c6576157d193d1e
SHA1 hash: 0026bcd172f64f7779105dbe33dba13c37139913
MD5 hash: 8c80682b2f1ea7a3c6326daf9c607c90
humanhash: minnesota-beer-finch-iowa
File name:SecuriteInfo.com.Win32.PWSX-gen.18442.28659
Download: download sample
Signature Formbook
Create hunting rule
File size:840'704 bytes
First seen:2024-04-17 07:34:02 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:7ve2cWjoI4tllz3DylKBAhxIfFtOYvw9wdM+7OrVYBlKVNrYl5BLvoD2lMPCDeeT:berA4tOlsAbIfDw9wtNCEBj1m
Threatray 628 similar samples on MalwareBazaar
TLSH T10005E0AD365076DFC857CD728AA41C60EA6160BB530BE20BA41315EDEA0DADBCF151F3
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)
File icon (PE):PE icon
dhash icon 0000000000000000 (872 x AgentTesla, 496 x Formbook, 296 x RedLineStealer)
Reporter SecuriteInfoCom
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
325
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
404c6e6bc552d4c16f6ef3870e36431da3cd6bfa6ea5f283ddeeb3fb320b3713.exe
Verdict:
Malicious activity
Analysis date:
2024-04-17 07:34:52 UTC
Tags:
evasion agenttesla stealer
Link:
https://app.any.run/tasks/de21cb55-2a27-4ba9-913b-417667a6873d

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
Сreating synchronization primitives
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a process with a hidden window
Creating a file in the %temp% directory
Launching a process
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Using the Windows Management Instrumentation requests
DNS request
Connection attempt
Sending a custom TCP request
Sending an HTTP GET request
Reading critical registry keys
Stealing user critical data
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/661f7b6dbf719463848e6902/reports/6ff4a75a-17fc-4e26-9a5d-500d14f412fb/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/404c6e6bc552d4c16f6ef3870e36431da3cd6bfa6ea5f283ddeeb3fb320b3713
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:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/f064e561-c15d-4572-84f8-845bf35ff60a
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1427215
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Adds a directory exclusion to Windows Defender
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Check if machine is in data center or colocation facility
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Contains functionality to log keystrokes (.Net Source)
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Found malware configuration
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)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Scheduled temp file as task from temp location
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 Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AgentTesla
Yara detected AntiVM3
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1427215 Sample: SecuriteInfo.com.Win32.PWSX... Startdate: 17/04/2024 Architecture: WINDOWS Score: 100 42 mail.hoangtruongphat.com 2->42 44 ip-api.com 2->44 46 api.ipify.org 2->46 54 Found malware configuration 2->54 56 Malicious sample detected (through community Yara rule) 2->56 58 Antivirus / Scanner detection for submitted sample 2->58 60 11 other signatures 2->60 8 SecuriteInfo.com.Win32.PWSX-gen.18442.28659.exe 7 2->8         started        12 YQIrWCLrNLnxP.exe 5 2->12         started        signatures3 process4 file5 38 C:\Users\user\AppData\...\YQIrWCLrNLnxP.exe, PE32 8->38 dropped 40 C:\Users\user\AppData\Local\...\tmp28E1.tmp, XML 8->40 dropped 62 Detected unpacking (changes PE section rights) 8->62 64 Detected unpacking (overwrites its own PE header) 8->64 66 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 8->66 74 5 other signatures 8->74 14 SecuriteInfo.com.Win32.PWSX-gen.18442.28659.exe 15 2 8->14         started        18 powershell.exe 23 8->18         started        20 powershell.exe 23 8->20         started        22 schtasks.exe 1 8->22         started        68 Antivirus detection for dropped file 12->68 70 Multi AV Scanner detection for dropped file 12->70 72 Machine Learning detection for dropped file 12->72 24 YQIrWCLrNLnxP.exe 12->24         started        26 schtasks.exe 12->26         started        signatures6 process7 dnsIp8 48 mail.hoangtruongphat.com 125.212.217.248, 49736, 49740, 587 VIETEL-AS-APViettelGroupVN Viet Nam 14->48 50 ip-api.com 208.95.112.1, 49734, 49739, 80 TUT-ASUS United States 14->50 52 api.ipify.org 104.26.13.205, 443, 49733, 49738 CLOUDFLARENETUS United States 14->52 76 Loading BitLocker PowerShell Module 18->76 28 WmiPrvSE.exe 18->28         started        30 conhost.exe 18->30         started        32 conhost.exe 20->32         started        34 conhost.exe 22->34         started        78 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 24->78 80 Tries to steal Mail credentials (via file / registry access) 24->80 82 Tries to harvest and steal browser information (history, passwords, etc) 24->82 36 conhost.exe 26->36         started        signatures9 process10
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/404c6e6bc552d4c16f6ef3870e36431da3cd6bfa6ea5f283ddeeb3fb320b3713
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/404c6e6bc552d4c16f6ef3870e36431da3cd6bfa6ea5f283ddeeb3fb320b3713/
Threat name:
Win32.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2024-04-17 05:45:39 UTC
File Type:
PE (.Net Exe)
Extracted files:
11
AV detection:
23 of 38 (60.53%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=ibgg426fklkmc33o6odq4nsddwr42272n2s7fa6552z7wmqlg4jq._file
Verdict:
malicious
Similar samples:
17c0c50c1bdb385925428029d1dcbe31c084753ff0ab8c11c8b866163425c5ee
Formbook
3ea5fdf1bf1d8ef3f91cfea53101058524ca73287a6695993b6fce1fd9ad7c84
Formbook
84b5e1b2883149321ba59ca2179d8ee2190a5d335cb6f15c5c4285dff78acefa
Formbook
e2b36a25345950bf0052a95107b9bef29b2ca3cb904685a98b5779041535fda9
Formbook
efb67364fa543ceddc607094c10c4b71f3baac1f45de5c2c759c489f97a64ec2
Formbook
+ 618 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger spyware stealer trojan
Link:
https://tria.ge/reports/240417-jd4sqsgh82/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Looks up external IP address via web service
Checks computer location settings
Reads WinSCP keys stored on the system
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
AgentTesla
Unpacked files
SH256 hash:
1c633f39a192f108f755e0bcf412e8489ad80781f3b7807c80892deb2526ff0d
MD5 hash:
e4b5d57e9e46a4e76075b5b92f71577f
SHA1 hash:
d76dc165724148193c6911cc75fc62c198737d3a
Link:
https://www.unpac.me/results/8ee723f4-b959-4dc8-bc2e-54779ae9a882/
Parent samples :
d89ea6a01347b82f963ed7960583e5d76c6a07e91852fae83bc290e0f64a06b2
3f700fd41c6cca501d50cc2f62afd8e0d951efc1a918aa65ab3e84ee563ff1d6
SH256 hash:
b2b5150fc911a3020bbf427428896a39ece5a56dc1fc2fe7e37359e097502b05
MD5 hash:
eca08bce0afd2d8a330082f960a663c3
SHA1 hash:
be2b927fa1be0d6a64b864739d6ea8f496c6006b
Link:
https://www.unpac.me/results/8ee723f4-b959-4dc8-bc2e-54779ae9a882/
SH256 hash:
7ae7fc57aa2ffe7aebccfa90ac40cf1845e9c414325616f4d71985cb37bcfaa1
MD5 hash:
68cf5f154a2ef2caeb66395558a0d29b
SHA1 hash:
93dec2df40ab1a205eccbc638120f3e8c5e99ff0
Link:
https://www.unpac.me/results/8ee723f4-b959-4dc8-bc2e-54779ae9a882/
SH256 hash:
9ddc829df188f81ace8bd2a00e3358e24909f98363c4405eeba8c9237f74db6c
MD5 hash:
eac7ff4dbd439ecc7f977eb4d1773160
SHA1 hash:
2926d00283d397930806b059c6cea19ff84a20aa
Detections:
AgentTesla
Create hunting rule
win_agent_tesla_g2
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
Create hunting rule
Agenttesla_type2
Create hunting rule
INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
Create hunting rule
INDICATOR_EXE_Packed_GEN01
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
Create hunting rule
Link:
https://www.unpac.me/results/8ee723f4-b959-4dc8-bc2e-54779ae9a882/
Parent samples :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 hash:
404c6e6bc552d4c16f6ef3870e36431da3cd6bfa6ea5f283ddeeb3fb320b3713
MD5 hash:
8c80682b2f1ea7a3c6326daf9c607c90
SHA1 hash:
0026bcd172f64f7779105dbe33dba13c37139913
Link:
https://www.unpac.me/results/8ee723f4-b959-4dc8-bc2e-54779ae9a882/
Malware family:
AgentTesla
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/404c6e6bc552/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Formbook
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/404c6e6bc552d4c16f6ef3870e36431da3cd6bfa6ea5f283ddeeb3fb320b3713

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:AgentTeslaV3
Create hunting rule
Author:ditekshen
Description:AgentTeslaV3 infostealer payload
Rule name:AgentTeslaV5
Create hunting rule
Author:ClaudioWayne
Description:AgentTeslaV5 infostealer payload
Rule name:DebuggerCheck__RemoteAPI
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:INDICATOR_EXE_Packed_GEN01
Create hunting rule
Author:ditekSHen
Description:Detect packed .NET executables. Mostly AgentTeslaV4.
Rule name:INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
Author:ditekSHen
Description:Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many email and collaboration clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many file transfer clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
Create hunting rule
Author:ditekSHen
Description:Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion
Rule name:INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing Windows vault credential objects. Observed in infostealers
Rule name:malware_Agenttesla_type2
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Windows_Trojan_AgentTesla_ebf431a8
Create hunting rule
Author:Elastic Security
Reference:https://www.elastic.co/security-labs/attack-chain-leads-to-xworm-and-agenttesla

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

Comments