MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4f86439a425e3980a2c4c6a7133161f441d3c8338d226eff67b84b180d659ec7. 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 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4f86439a425e3980a2c4c6a7133161f441d3c8338d226eff67b84b180d659ec7
SHA3-384 hash: c5d40813399a84e17d0c572b50cf7aced7a82e176ebb6f15e0d0805cd6aa19b34a23daaa31746bbf7dc0266baecd79c9
SHA1 hash: 2506a0a6a2303e53e400de74c21474440e563e3b
MD5 hash: 4a8534b3579fc2e0b3903dec85a38f12
humanhash: quebec-pizza-grey-rugby
File name:SecuriteInfo.com.Win32.PWSX-gen.10093.13071
Download: download sample
Signature Formbook
Create hunting rule
File size:808'960 bytes
First seen:2024-02-12 22:41:32 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'647 x AgentTesla, 19'451 x Formbook, 12'201 x SnakeKeylogger)
ssdeep 24576:fs3ZPyRt9g4hxWR1HJSKSta5V0CJxJUinq3:fsJ6RtugxWR1H4c5XJUinq
TLSH T146058B51D2390E79CFD54AFAC08F4DF01728BCF654A2BC53A0137A1AA9B659DC4C60BE
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)
File icon (PE):PE icon
dhash icon e0e4c4b0b4f4d890 (1 x Formbook)
Reporter SecuriteInfoCom
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
327
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
4f86439a425e3980a2c4c6a7133161f441d3c8338d226eff67b84b180d659ec7.exe
Verdict:
Malicious activity
Analysis date:
2024-02-12 22:46:50 UTC
Tags:
evasion agenttesla stealer
Link:
https://app.any.run/tasks/7a5c3ea1-d4ee-4089-afb2-f1bdf08ccc93

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/475906/
Detection(s):
SecuriteInfo.com.Win32.PWSX-gen.10093.13071.UNOFFICIAL
Create hunting rule

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
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/65ca9ebcea38647add2598f5/reports/b6d3d890-52c3-464f-ad7c-c59a27979d54/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/4f86439a425e3980a2c4c6a7133161f441d3c8338d226eff67b84b180d659ec7
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/249e16ab-3f51-4612-8d9a-7b4c11150cdd
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1391136
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Adds a directory exclusion to Windows Defender
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)
Found malware configuration
Injects a PE file into a foreign processes
Installs a global keyboard hook
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)
Sample uses string decryption to hide its real strings
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Scheduled temp file as task from temp location
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 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: 1391136 Sample: SecuriteInfo.com.Win32.PWSX... Startdate: 12/02/2024 Architecture: WINDOWS Score: 100 40 mx-out05.natrohost.com 2->40 42 mail.elektronikkutu.com 2->42 44 ip-api.com 2->44 50 Snort IDS alert for network traffic 2->50 52 Found malware configuration 2->52 54 Malicious sample detected (through community Yara rule) 2->54 56 12 other signatures 2->56 8 SecuriteInfo.com.Win32.PWSX-gen.10093.13071.exe 7 2->8         started        12 PSTnEcHsBeaZp.exe 5 2->12         started        signatures3 process4 file5 36 C:\Users\user\AppData\...\PSTnEcHsBeaZp.exe, PE32 8->36 dropped 38 C:\Users\user\AppData\Local\Temp\tmpABB.tmp, XML 8->38 dropped 58 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 8->58 60 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 8->60 62 Uses schtasks.exe or at.exe to add and modify task schedules 8->62 70 2 other signatures 8->70 14 SecuriteInfo.com.Win32.PWSX-gen.10093.13071.exe 15 2 8->14         started        18 powershell.exe 22 8->18         started        20 schtasks.exe 1 8->20         started        26 3 other processes 8->26 64 Multi AV Scanner detection for dropped file 12->64 66 Machine Learning detection for dropped file 12->66 68 Injects a PE file into a foreign processes 12->68 22 PSTnEcHsBeaZp.exe 14 2 12->22         started        24 schtasks.exe 1 12->24         started        signatures6 process7 dnsIp8 46 mx-out05.natrohost.com 94.73.188.44, 49718, 49723, 587 CIZGITR Turkey 14->46 48 ip-api.com 208.95.112.1, 49717, 49721, 80 TUT-ASUS United States 14->48 72 Installs a global keyboard hook 14->72 28 WmiPrvSE.exe 18->28         started        30 conhost.exe 18->30         started        32 conhost.exe 20->32         started        74 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 22->74 76 Tries to steal Mail credentials (via file / registry access) 22->76 78 Tries to harvest and steal browser information (history, passwords, etc) 22->78 34 conhost.exe 24->34         started        signatures9 process10
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/4f86439a425e3980a2c4c6a7133161f441d3c8338d226eff67b84b180d659ec7
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4f86439a425e3980a2c4c6a7133161f441d3c8338d226eff67b84b180d659ec7/
Threat name:
ByteCode-MSIL.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2024-02-12 19:12:13 UTC
File Type:
PE (.Net Exe)
Extracted files:
20
AV detection:
16 of 23 (69.57%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=j6dehgscly4ybiwey2trgmlb6ra5hsbtrurg573hxbfrqdlft3dq._file
Verdict:
malicious
Label(s):
agenttesla_v4
Create hunting rule
agenttesla
Create hunting rule
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger spyware stealer trojan
Link:
https://tria.ge/reports/240212-2mm6fsdf2s/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
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 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:
849fb1339ec278ec634edec1a4c6d0b24f8da0bd54e2b2c11d990b063f65ac53
MD5 hash:
a1a0e3670b63e18565e1c00e93f50df3
SHA1 hash:
d87d3ee46d1d3fa89417874b7643a9432cf9c0bf
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/8aec2d8e-1f35-4730-85e5-1f85aa4652b3/
Parent samples :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 hash:
8259063e3cae801a465d38806bc5a30a0890fd7e666d2d3121b93b744715fece
MD5 hash:
a1357de4b08e489d0f45573b5710527b
SHA1 hash:
79086ce9a7b779c247ab6405aeaee0cc72d6d9dc
Link:
https://www.unpac.me/results/8aec2d8e-1f35-4730-85e5-1f85aa4652b3/
SH256 hash:
a6129d83d39563e5918856d2750b05af4604bf1d09b6766b0d8ad546090443f4
MD5 hash:
0047fe62cb42f86da6ff75e96c084a85
SHA1 hash:
4fd7be0df17ce0bfd02306e8c9206d091a844449
Link:
https://www.unpac.me/results/8aec2d8e-1f35-4730-85e5-1f85aa4652b3/
SH256 hash:
a3b82e2d17f660c450ba4dae95a26b906f12626462a4bb9a6c2833071dd9faf5
MD5 hash:
cf3241f04cc546fa617566e84b5c1793
SHA1 hash:
0b9cbe0c45fba268857e11ad4d71105193c19d02
Link:
https://www.unpac.me/results/8aec2d8e-1f35-4730-85e5-1f85aa4652b3/
SH256 hash:
4f86439a425e3980a2c4c6a7133161f441d3c8338d226eff67b84b180d659ec7
MD5 hash:
4a8534b3579fc2e0b3903dec85a38f12
SHA1 hash:
2506a0a6a2303e53e400de74c21474440e563e3b
Link:
https://www.unpac.me/results/8aec2d8e-1f35-4730-85e5-1f85aa4652b3/
Malware family:
AgentTesla
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/4f86439a425e/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/4f86439a425e3980a2c4c6a7133161f441d3c8338d226eff67b84b180d659ec7

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: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

File information

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

Cape
Cape
https://www.capesandbox.com/analysis/475906/

Comments