MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 435a9413255eab9eb0aa6c6439dfabdecc47785eec10aaf9a59a0619cb564cff. 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: 15


Intelligence 15 IOCs YARA 17 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 435a9413255eab9eb0aa6c6439dfabdecc47785eec10aaf9a59a0619cb564cff
SHA3-384 hash: f2e1ee4569e9beaa283e8c44b79650ac588e99676d467c862d0280fc75d3293c3c373dd2b40364fa516bd8b9ddf252a1
SHA1 hash: e1ed418dc0e60a2414a33b4dbb9d94e637bfaf80
MD5 hash: feb4a63903eb7d214effe11954d94b9b
humanhash: spaghetti-maine-alanine-autumn
File name:Draft_Bill Ladden.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:788'480 bytes
First seen:2024-01-15 14:06:46 UTC
Last seen:2024-01-15 15:19:44 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 24576:4+mWzSUZaIvJN2aeB5jzoqxzDg6ps1KDXaG:WIRN2p/PHhUC
TLSH T1CAF4122435F8576AC47C87F85221622423FA7B0E2626D75CAE8764CD1E71FC2C709B6B
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) (4505/5/1)
Reporter TeamDreier
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
309
Origin country :
DK DK
Vendor Threat Intelligence
Malware family:
agenttesla
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ID:
1
File name:
Draft_Bill Ladden.tar.xz
Verdict:
Malicious activity
Analysis date:
2024-01-15 10:01:42 UTC
Tags:
evasion agenttesla stealer
Link:
https://app.any.run/tasks/824d7210-bdfc-4a7e-82ec-114aa4d415ec

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/470924/
Detection(s):
Porcupine.Malware.58887.UNOFFICIAL
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Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/65a53c0994d1aebfb2a1844b/reports/7033514e-5488-4bbe-b3e2-94a562998846/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/435a9413255eab9eb0aa6c6439dfabdecc47785eec10aaf9a59a0619cb564cff
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.
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/6d640243-7b9c-4fb5-a943-85d71e97898a
Result
Threat name:
AgentTesla
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Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1374784
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)
Contains functionality to register a low level keyboard hook
Found malware configuration
Initial sample is a PE file and has a suspicious name
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)
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
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: 1374784 Sample: Draft_Bill_Ladden.exe Startdate: 15/01/2024 Architecture: WINDOWS Score: 100 42 mail.topcats.com 2->42 44 windowsupdatebg.s.llnwi.net 2->44 46 ip-api.com 2->46 52 Snort IDS alert for network traffic 2->52 54 Found malware configuration 2->54 56 Malicious sample detected (through community Yara rule) 2->56 58 10 other signatures 2->58 8 Draft_Bill_Ladden.exe 7 2->8         started        12 aFHQwIwElFu.exe 5 2->12         started        signatures3 process4 file5 38 C:\Users\user\AppData\...\aFHQwIwElFu.exe, PE32 8->38 dropped 40 C:\Users\user\AppData\Local\...\tmp6F39.tmp, XML 8->40 dropped 60 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 8->60 62 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 8->62 64 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 8->64 72 4 other signatures 8->72 14 Draft_Bill_Ladden.exe 15 2 8->14         started        18 powershell.exe 22 8->18         started        20 schtasks.exe 1 8->20         started        22 Draft_Bill_Ladden.exe 8->22         started        66 Multi AV Scanner detection for dropped file 12->66 68 Machine Learning detection for dropped file 12->68 70 Contains functionality to register a low level keyboard hook 12->70 24 aFHQwIwElFu.exe 12->24         started        26 schtasks.exe 1 12->26         started        28 SIHClient.exe 12->28         started        signatures6 process7 dnsIp8 48 mail.topcats.com 173.254.28.210, 49710, 49713, 49715 UNIFIEDLAYER-AS-1US United States 14->48 50 ip-api.com 208.95.112.1, 49709, 49714, 80 TUT-ASUS United States 14->50 74 Installs a global keyboard hook 14->74 30 WmiPrvSE.exe 18->30         started        32 conhost.exe 18->32         started        34 conhost.exe 20->34         started        76 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 24->76 78 Tries to steal Mail credentials (via file / registry access) 24->78 80 Tries to harvest and steal browser information (history, passwords, etc) 24->80 36 conhost.exe 26->36         started        signatures9 process10
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/435a9413255eab9eb0aa6c6439dfabdecc47785eec10aaf9a59a0619cb564cff
Detection:
agenttesla
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Link:
https://mwdb.cert.pl/sample/435a9413255eab9eb0aa6c6439dfabdecc47785eec10aaf9a59a0619cb564cff/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
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Status:
Malicious
First seen:
2024-01-15 10:16:21 UTC
File Type:
PE (.Net Exe)
Extracted files:
36
AV detection:
16 of 23 (69.57%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=innjiezfl2vz5mfknrsdtx5l33geo6c65qikv6nftidbts2wjt7q._file
Verdict:
malicious
Label(s):
agenttesla_v4
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agenttesla
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Result
Malware family:
agenttesla
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Score:
  10/10
Tags:
family:agenttesla keylogger spyware stealer trojan
Link:
https://tria.ge/reports/240115-rezjeahbhm/
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:
1bf4b72239d077efaf34ff2a8102c3c3f98685b3876dac73956c17c753d4bb81
MD5 hash:
bf2d2e955fc51ca5dba31b5886f66ccc
SHA1 hash:
ffa6d55e5ea1ad15407394b706dbcad2ab765ee9
Link:
https://www.unpac.me/results/4ca04ca0-a23d-4e3a-84d9-02641a934f0f/
SH256 hash:
01962350879ecee7362c6992c35399caf623d0490cfc2c9b36e1539ad2343392
MD5 hash:
84eee05e41b95713ea5c30b8540d7202
SHA1 hash:
e3ee06ba3bb59a36d68fd3607a01ed858069ed56
Detections:
AgentTesla
Create hunting rule
win_agent_tesla_g2
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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
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INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
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Link:
https://www.unpac.me/results/4ca04ca0-a23d-4e3a-84d9-02641a934f0f/
Parent samples :
435a9413255eab9eb0aa6c6439dfabdecc47785eec10aaf9a59a0619cb564cff
15ed690489e8c1fe0d2e74ed0a241eb1b66a440a542744dbb540e4a0c171b89a
e4774cbdc2aac07572eefec66a9a7f8d3da34f49b5af1e5b03da896829dc9654
SH256 hash:
21afe82a0b71ee589c26f32dc88e0a6e22817f21194b2a83f1807c6cecc8c818
MD5 hash:
440bb4db146ccb1161ac2bcf365d7676
SHA1 hash:
506eda511b46df6e95d86861e70fda81307f8623
Link:
https://www.unpac.me/results/4ca04ca0-a23d-4e3a-84d9-02641a934f0f/
SH256 hash:
c2c11bad8b747a2f4ebac2c1f687f87376f401c336671b6ace443313911babb4
MD5 hash:
724619943adab4bdda85d8702886e673
SHA1 hash:
15a639d23e64e417089d17e5284c5fdcee5536ab
Link:
https://www.unpac.me/results/4ca04ca0-a23d-4e3a-84d9-02641a934f0f/
SH256 hash:
435a9413255eab9eb0aa6c6439dfabdecc47785eec10aaf9a59a0619cb564cff
MD5 hash:
feb4a63903eb7d214effe11954d94b9b
SHA1 hash:
e1ed418dc0e60a2414a33b4dbb9d94e637bfaf80
Link:
https://www.unpac.me/results/4ca04ca0-a23d-4e3a-84d9-02641a934f0f/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/435a9413255e/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/435a9413255eab9eb0aa6c6439dfabdecc47785eec10aaf9a59a0619cb564cff

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:AgentTesla_DIFF_Common_Strings_01
Create hunting rule
Author:schmidtsz
Description:Identify partial Agent Tesla strings
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

File information

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

Malspam

Formbook

Executable exe 435a9413255eab9eb0aa6c6439dfabdecc47785eec10aaf9a59a0619cb564cff

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/470924/

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