MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 53c48a7e304a44854fa0beacc7cfe3089e43f4e7bc8814856835108c459c63af. 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: 16


Intelligence 16 IOCs YARA 17 File information Comments

SHA256 hash: 53c48a7e304a44854fa0beacc7cfe3089e43f4e7bc8814856835108c459c63af
SHA3-384 hash: d4f29b45c06fcf5c9d77614e000fc4a51a0576514b3bb7394812cebba4c31c32425791964b749bc19889eb2f65dbd15d
SHA1 hash: 254d600bd18ec25b7802ddc8d6c4000b33e51e0d
MD5 hash: 95f9ec6c294037bb73084a5dd620168f
humanhash: table-california-johnny-steak
File name:SecuriteInfo.com.Win32.PWSX-gen.28124.27215
Download: download sample
Signature Formbook
File size:650'240 bytes
First seen:2024-02-06 18:22:38 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'662 x AgentTesla, 19'475 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:4xLvnA74uQ0R/2GluHEA7iv+f+Hjigln9pioLN5u9bNeA:4x7nA7oYduHEiWjicnu3LeA
TLSH T1A5D423593CF835ABD6B91BF75890901077F5F109CAB2EB960EC73ACA25CAF560502A43
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 f269b44aadd268b0 (3 x Formbook, 2 x RemcosRAT, 1 x AgentTesla)
Reporter SecuriteInfoCom
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
285
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
agenttesla
ID:
1
File name:
PDF DOC New Design Order 004jYnUIK8UrvbS.zip
Verdict:
Malicious activity
Analysis date:
2024-02-07 03:16:02 UTC
Tags:
evasion stealer agenttesla

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
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:
AgentTesla
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
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)
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
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
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 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:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1387756 Sample: SecuriteInfo.com.Win32.PWSX... Startdate: 06/02/2024 Architecture: WINDOWS Score: 100 59 us2.smtp.mailhostbox.com 2->59 61 ip-api.com 2->61 67 Found malware configuration 2->67 69 Malicious sample detected (through community Yara rule) 2->69 71 Antivirus / Scanner detection for submitted sample 2->71 73 12 other signatures 2->73 8 SecuriteInfo.com.Win32.PWSX-gen.28124.27215.exe 7 2->8         started        12 XpKsrCiuUX.exe 5 2->12         started        14 ZUHFqcY.exe 2->14         started        16 ZUHFqcY.exe 2->16         started        signatures3 process4 file5 55 C:\Users\user\AppData\...\XpKsrCiuUX.exe, PE32 8->55 dropped 57 C:\Users\user\AppData\Local\Temp\tmp8F1.tmp, XML 8->57 dropped 81 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 8->81 83 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 8->83 85 Uses schtasks.exe or at.exe to add and modify task schedules 8->85 95 2 other signatures 8->95 18 SecuriteInfo.com.Win32.PWSX-gen.28124.27215.exe 16 5 8->18         started        23 powershell.exe 21 8->23         started        25 schtasks.exe 1 8->25         started        87 Antivirus detection for dropped file 12->87 89 Multi AV Scanner detection for dropped file 12->89 91 Machine Learning detection for dropped file 12->91 27 XpKsrCiuUX.exe 12->27         started        29 schtasks.exe 1 12->29         started        93 Injects a PE file into a foreign processes 14->93 31 ZUHFqcY.exe 14->31         started        33 schtasks.exe 14->33         started        35 ZUHFqcY.exe 16->35         started        37 schtasks.exe 16->37         started        signatures6 process7 dnsIp8 63 ip-api.com 208.95.112.1, 49707, 49712, 49714 TUT-ASUS United States 18->63 65 us2.smtp.mailhostbox.com 208.91.199.223, 49709, 49713, 49717 PUBLIC-DOMAIN-REGISTRYUS United States 18->65 51 C:\Users\user\AppData\Roaming\...\ZUHFqcY.exe, PE32 18->51 dropped 53 C:\Users\user\...\ZUHFqcY.exe:Zone.Identifier, ASCII 18->53 dropped 75 Tries to steal Mail credentials (via file / registry access) 18->75 77 Hides that the sample has been downloaded from the Internet (zone.identifier) 18->77 39 WmiPrvSE.exe 23->39         started        41 conhost.exe 23->41         started        43 conhost.exe 25->43         started        45 conhost.exe 29->45         started        47 conhost.exe 33->47         started        79 Tries to harvest and steal browser information (history, passwords, etc) 35->79 49 conhost.exe 37->49         started        file9 signatures10 process11
Threat name:
ByteCode-MSIL.Spyware.Negasteal
Status:
Malicious
First seen:
2024-02-06 16:09:21 UTC
File Type:
PE (.Net Exe)
Extracted files:
6
AV detection:
18 of 24 (75.00%)
Threat level:
  2/5
Verdict:
malicious
Label(s):
agenttesla_v4 agenttesla
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
family:agenttesla keylogger persistence spyware stealer trojan
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Looks up external IP address via web service
Checks computer location settings
Reads user/profile data of local email clients
Reads user/profile data of web browsers
AgentTesla
Unpacked files
SH256 hash:
d5bd53c7bb55e3a7a138bc501694c3a092126a6b6935a2b3f19da24866157547
MD5 hash:
b04c07f9ad77e72534aadcfe44a9e478
SHA1 hash:
bc617faf9f667ca9b6d0aaa0640b874efdc476cb
SH256 hash:
1ec3d0fb4603d712e0330ad2543870aea4dc2a00352a8949a200cf4f976ad65e
MD5 hash:
58e184e3ab21c2622c4eebba516e55ad
SHA1 hash:
8d9ad4d9f0c6a399b5acebc06d9bbf82fd036f50
SH256 hash:
f599e2f61695060bd17eaddb36a8bdf2292d84c16bfb551e60614aaaea9806e8
MD5 hash:
f492936a1b25ff3167b9f5617666ef88
SHA1 hash:
778e2d19585bf283c5f2cf6bbd22d9fdafe5ac74
Detections:
AgentTesla win_agent_tesla_g2 INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients Agenttesla_type2 INDICATOR_SUSPICIOUS_Binary_References_Browsers INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL INDICATOR_EXE_Packed_GEN01 INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
SH256 hash:
3dff12ee9183149386bfb90aa8bb671f57201de4e1157b79dd22fea45d837562
MD5 hash:
02e3968ff81ca78205efb912d981ea81
SHA1 hash:
0846251d2774064940f11617e1b15b2eb63834aa
SH256 hash:
53c48a7e304a44854fa0beacc7cfe3089e43f4e7bc8814856835108c459c63af
MD5 hash:
95f9ec6c294037bb73084a5dd620168f
SHA1 hash:
254d600bd18ec25b7802ddc8d6c4000b33e51e0d
Malware family:
AgentTesla
Verdict:
Malicious
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:AgentTeslaV3
Author:ditekshen
Description:AgentTeslaV3 infostealer payload
Rule name:DebuggerCheck__RemoteAPI
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:INDICATOR_EXE_Packed_GEN01
Author:ditekSHen
Description:Detect packed .NET executables. Mostly AgentTeslaV4.
Rule name:INDICATOR_SUSPICIOUS_Binary_References_Browsers
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
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
Author:ditekSHen
Description:Detects executables referencing many email and collaboration clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
Author:ditekSHen
Description:Detects executables referencing many file transfer clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
Author:ditekSHen
Description:Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion
Rule name:INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
Author:ditekSHen
Description:Detects executables referencing Windows vault credential objects. Observed in infostealers
Rule name:malware_Agenttesla_type2
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:Multifamily_RAT_Detection
Author:Lucas Acha (http://www.lukeacha.com)
Description:Generic Detection for multiple RAT families, PUPs, Packers and suspicious executables
Rule name:NET
Author:malware-lu
Rule name:NETexecutableMicrosoft
Author:malware-lu
Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
Rule name:Windows_Trojan_AgentTesla_ebf431a8
Author:Elastic Security

File information


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

Comments