MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7df532109f62b797fafb07b9250ac95635b332902108e9f6733909e2e27d23ec. 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 16 File information Comments

SHA256 hash: 7df532109f62b797fafb07b9250ac95635b332902108e9f6733909e2e27d23ec
SHA3-384 hash: 67f2be16751e464a91952ecaad6d6afc63c82547132183313039f2e59ce3f0c137c07096e654289ecd6f4a195cfe98d2
SHA1 hash: ea58dbc8ffc051692badb3aa4aa0d67a3b3a8f96
MD5 hash: 83b6419b7b83dd777d0684b6f51875a5
humanhash: lemon-avocado-batman-washington
File name:Payment Copy 4i6Sr3cwfMJMkwr.scr
Download: download sample
Signature Formbook
File size:1'014'272 bytes
First seen:2024-02-13 15:26:32 UTC
Last seen:2024-02-13 17:23:16 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 24576:3lU3M+BL/9L4JnHfyUvpsUSBlkn5Yhfz87brh8:GhL/9L4RTsU5n5Sfz87h
Threatray 236 similar samples on MalwareBazaar
TLSH T1C325026632C8DF27C46DDE3434B216C242A16D21D695D3D81DAC2DEB3AB73B448379B2
TrID 63.0% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.2% (.SCR) Windows screen saver (13097/50/3)
9.0% (.EXE) Win64 Executable (generic) (10523/12/4)
5.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.8% (.EXE) Win32 Executable (generic) (4504/4/1)
Reporter threatcat_ch
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
2
# of downloads :
302
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
agenttesla
ID:
1
File name:
7df532109f62b797fafb07b9250ac95635b332902108e9f6733909e2e27d23ec.exe
Verdict:
Malicious activity
Analysis date:
2024-02-13 15:28:32 UTC
Tags:
evasion stealer agenttesla

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Searching for synchronization primitives
Launching the default Windows debugger (dwwin.exe)
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
masquerade 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
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
Initial sample is a PE file and has a suspicious name
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: 1391521 Sample: Payment Copy 4i6Sr3cwfMJMkw... Startdate: 13/02/2024 Architecture: WINDOWS Score: 100 38 us2.smtp.mailhostbox.com 2->38 40 ip-api.com 2->40 46 Found malware configuration 2->46 48 Malicious sample detected (through community Yara rule) 2->48 50 Sigma detected: Scheduled temp file as task from temp location 2->50 52 16 other signatures 2->52 8 PYzDzmuUmUW.exe 5 2->8         started        11 Payment Copy 4i6Sr3cwfMJMkwr.scr.exe 7 2->11         started        signatures3 process4 file5 54 Multi AV Scanner detection for dropped file 8->54 56 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 8->56 58 Machine Learning detection for dropped file 8->58 14 PYzDzmuUmUW.exe 14 2 8->14         started        17 schtasks.exe 1 8->17         started        34 C:\Users\user\AppData\...\PYzDzmuUmUW.exe, PE32 11->34 dropped 36 C:\Users\user\AppData\Local\...\tmpBF57.tmp, XML 11->36 dropped 60 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 11->60 62 Adds a directory exclusion to Windows Defender 11->62 64 Injects a PE file into a foreign processes 11->64 19 Payment Copy 4i6Sr3cwfMJMkwr.scr.exe 15 2 11->19         started        22 powershell.exe 22 11->22         started        24 schtasks.exe 1 11->24         started        signatures6 process7 dnsIp8 66 Tries to steal Mail credentials (via file / registry access) 14->66 68 Tries to harvest and steal browser information (history, passwords, etc) 14->68 26 conhost.exe 17->26         started        42 ip-api.com 208.95.112.1, 49706, 49711, 80 TUT-ASUS United States 19->42 44 us2.smtp.mailhostbox.com 208.91.199.225, 49708, 49712, 587 PUBLIC-DOMAIN-REGISTRYUS United States 19->44 28 WmiPrvSE.exe 22->28         started        30 conhost.exe 22->30         started        32 conhost.exe 24->32         started        signatures9 process10
Threat name:
ByteCode-MSIL.Trojan.SnakeKeylogger
Status:
Malicious
First seen:
2024-02-12 11:51:23 UTC
File Type:
PE (.Net Exe)
Extracted files:
12
AV detection:
18 of 24 (75.00%)
Threat level:
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
family:agenttesla keylogger 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
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:
d6a0c0e8655799d408dd3390ea452bbdc5ed69f1f1e8de2842264e5e62c6ba30
MD5 hash:
5752e7a99b4631969f0acba0c4ae8437
SHA1 hash:
f0e331169fc18e5ef021cb52a5a5f8f6fc9f270c
SH256 hash:
58c194f6e9f8b34b0801d1e5c25947c498bd8eb15e175597bdd49bedd8dc3337
MD5 hash:
0da2093ebfc82a4761c05cb66749b096
SHA1 hash:
c4c14827ed2805f1324656bccbbfbffdd40e2d60
SH256 hash:
e9c028ecb36a6fb2e3a9f2ce8e58fa444649dd3c47039765cca1967dcc99ef3b
MD5 hash:
65e87dc385029fc40a1d83797b7fbbae
SHA1 hash:
96ee40ce767bf100c7f5c7eb38eda137a9ecd6e5
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:
971c821aa19832e04f1dd44b19cdb909d36d27be2f9e62edd10bf7887a43d15a
MD5 hash:
6d7a285502323918820b8513b5f33d75
SHA1 hash:
9633177bbb29c2563fec4a7dd381f4a278588437
SH256 hash:
7df532109f62b797fafb07b9250ac95635b332902108e9f6733909e2e27d23ec
MD5 hash:
83b6419b7b83dd777d0684b6f51875a5
SHA1 hash:
ea58dbc8ffc051692badb3aa4aa0d67a3b3a8f96
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: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.

Malspam

Formbook

Executable exe 7df532109f62b797fafb07b9250ac95635b332902108e9f6733909e2e27d23ec

(this sample)

  
Delivery method
Distributed via e-mail attachment

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