MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 9d57211cd89f172b2a56a41e2906df2baff93edf0bf17763769150483b720fe7. 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 19 File information Comments

SHA256 hash: 9d57211cd89f172b2a56a41e2906df2baff93edf0bf17763769150483b720fe7
SHA3-384 hash: 51fbce18cf0d1170910040fa58004f6882b0d049ed66327bf261ae8ea946cb4ae2308251483686c5a925bb988d497bc1
SHA1 hash: 03186f07af51d38d2c74ceb0b00afbe2ddcdc90f
MD5 hash: d6243be6060222afc9b4c7a2c12bc069
humanhash: mirror-butter-happy-hot
File name:Türk Havacılık ve Uzay Sanayii AŞ TEKLİF TALEBİ_xlsx.exe
Download: download sample
Signature Formbook
File size:715'264 bytes
First seen:2025-04-16 13:06:31 UTC
Last seen:2025-05-09 12:40:13 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:JwHf2ThrX6r4X6Vbohy+g0iFd7ZGpdfN+fGWXahFc5c3sZGspPPqyxREgoDZ:CfKhrKr4X6V5siFhZwdVUXaLAZ5Dx6L
Threatray 3'450 similar samples on MalwareBazaar
TLSH T1C6E40119129DC802E1BA07B11871D2B597B6BECAAC31CB4B9FDE6CDB772B7501C01B91
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10522/11/4)
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 lowmal3
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
2
# of downloads :
462
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Türk Havacılık ve Uzay Sanayii AŞ TEKLİF TALEBİ_xlsx.exe
Verdict:
Suspicious activity
Analysis date:
2025-04-16 13:10:24 UTC
Tags:
netreactor

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
99.1%
Tags:
underscore lien
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
Searching for synchronization primitives
Launching the default Windows debugger (dwwin.exe)
Searching for the window
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
masquerade obfuscated packed packed packer_detected vbnet
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
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
Joe Sandbox ML detected suspicious sample
Loading BitLocker PowerShell Module
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
Suricata IDS alerts 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 ftp login credentials
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
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1666353 Sample: T#U00fcrk Havac#U0131l#U013... Startdate: 16/04/2025 Architecture: WINDOWS Score: 100 57 smtp.infroyale.com 2->57 59 us2.smtp.mailhostbox.com 2->59 61 ip-api.com 2->61 75 Suricata IDS alerts for network traffic 2->75 77 Found malware configuration 2->77 79 Malicious sample detected (through community Yara rule) 2->79 81 13 other signatures 2->81 8 T#U00fcrk Havac#U0131l#U0131k ve Uzay Sanayii A#U015e TEKL#U0130F TALEB#U0130_xlsx.exe 7 2->8         started        12 ACaYlHeJc.exe 5 2->12         started        14 svchost.exe 2->14         started        signatures3 process4 dnsIp5 45 C:\Users\user\AppData\Roaming\ACaYlHeJc.exe, PE32 8->45 dropped 47 C:\Users\...\ACaYlHeJc.exe:Zone.Identifier, ASCII 8->47 dropped 49 C:\Users\user\AppData\Local\...\tmpC484.tmp, XML 8->49 dropped 51 T#U00fcrk Havac#U0...#U0130_xlsx.exe.log, ASCII 8->51 dropped 83 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 8->83 85 Adds a directory exclusion to Windows Defender 8->85 87 Injects a PE file into a foreign processes 8->87 17 T#U00fcrk Havac#U0131l#U0131k ve Uzay Sanayii A#U015e TEKL#U0130F TALEB#U0130_xlsx.exe 15 2 8->17         started        21 powershell.exe 23 8->21         started        23 powershell.exe 23 8->23         started        25 schtasks.exe 1 8->25         started        89 Multi AV Scanner detection for dropped file 12->89 91 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 12->91 27 ACaYlHeJc.exe 12->27         started        29 schtasks.exe 12->29         started        31 ACaYlHeJc.exe 12->31         started        33 ACaYlHeJc.exe 12->33         started        63 127.0.0.1 unknown unknown 14->63 file6 signatures7 process8 dnsIp9 53 ip-api.com 208.95.112.1, 49683, 49685, 80 TUT-ASUS United States 17->53 55 us2.smtp.mailhostbox.com 208.91.199.223, 49684, 49686, 587 PUBLIC-DOMAIN-REGISTRYUS United States 17->55 65 Loading BitLocker PowerShell Module 21->65 35 conhost.exe 21->35         started        37 WmiPrvSE.exe 21->37         started        39 conhost.exe 23->39         started        41 conhost.exe 25->41         started        67 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 27->67 69 Tries to steal Mail credentials (via file / registry access) 27->69 71 Tries to harvest and steal ftp login credentials 27->71 73 Tries to harvest and steal browser information (history, passwords, etc) 27->73 43 conhost.exe 29->43         started        signatures10 process11
Threat name:
Win32.Spyware.Negasteal
Status:
Malicious
First seen:
2025-04-16 10:16:41 UTC
File Type:
PE (.Net Exe)
Extracted files:
5
AV detection:
26 of 38 (68.42%)
Threat level:
  2/5
Result
Malware family:
n/a
Score:
  8/10
Tags:
discovery execution
Behaviour
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
System Location Discovery: System Language Discovery
Checks computer location settings
Command and Scripting Interpreter: PowerShell
Unpacked files
SH256 hash:
9d57211cd89f172b2a56a41e2906df2baff93edf0bf17763769150483b720fe7
MD5 hash:
d6243be6060222afc9b4c7a2c12bc069
SHA1 hash:
03186f07af51d38d2c74ceb0b00afbe2ddcdc90f
SH256 hash:
ab0fc1c1b4c7edf5ec034ab2a70f20a54d0af5f1d1c341421d0273d301b214cf
MD5 hash:
491fc708ffd037610a1f1f9533b13340
SHA1 hash:
3e1928253089e48f66db77c24379947f98a2e7c8
Detections:
SUSP_OBF_NET_Reactor_Indicators_Jan24
SH256 hash:
92381068ba0659eb245a1ee75d35ade385d9d1c866258482fec1ecf833b0bc38
MD5 hash:
a56552a23b0e99456abff9764ab0a3cd
SHA1 hash:
b1a91454c99cbf6201bd55e09cb946da60e67402
Detections:
win_agent_tesla_g2 AgentTesla Agenttesla_type2 INDICATOR_EXE_Packed_GEN01 INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL INDICATOR_SUSPICIOUS_Binary_References_Browsers INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
SH256 hash:
c813162e8ea48bdbe3a754af1b978045a89271d974c5303ccd99c192c012179a
MD5 hash:
6b535de5444f0cc40c886847765e0bc3
SHA1 hash:
dd305a72e44181c970f9ff404958d60bd8be62a1
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24 SUSP_OBF_NET_Reactor_Indicators_Jan24
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:AgentTeslaV5
Author:ClaudioWayne
Description:AgentTeslaV5 infostealer payload
Rule name:Agenttesla_type2
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
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: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:Sus_Obf_Enc_Spoof_Hide_PE
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)
Rule name:Windows_Trojan_AgentTesla_ebf431a8
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.

Malspam

Formbook

Executable exe 9d57211cd89f172b2a56a41e2906df2baff93edf0bf17763769150483b720fe7

(this sample)

  
Delivery method
Distributed via e-mail attachment

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