MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f80e5f58eaad73e902c8d612e166c360a309e4093bd7fa3451df4495638a73e4. 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 17 File information Comments
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SHA256 hash: f80e5f58eaad73e902c8d612e166c360a309e4093bd7fa3451df4495638a73e4
SHA3-384 hash: db1c01c3aa2a95b94a87d864d1ca07a517e7a26d6f6740fb9209b8e9d06cdecd0bbee81093fc1446bfd28f7cb2274a50
SHA1 hash: 15e83047aff16bc4be694ddea208af4e5adb4e59
MD5 hash: 3f14789bbb2b7f4c62f213458da97e1b
humanhash: connecticut-colorado-ink-carolina
File name:Dekont.pdf.exe
Download: download sample
Signature Formbook
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File size:2'320'384 bytes
First seen:2024-05-04 07:48:09 UTC
Last seen:2024-05-04 08:27:02 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'607 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 49152:IsV7H78LihMzAmi2RJHyPg+RUycKwhggHwFSDQ+:TR8Ly2diOJ/+RUDdaWQ+
Threatray 3'956 similar samples on MalwareBazaar
TLSH T155B5330AFA6E5A55C58DA5FCE8EFBD106972A38F320B6103FDAC17B404276F37658064
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)
Reporter abuse_ch
Tags:exe FormBook geo TUR

Intelligence

File Origin
# of uploads :
2
# of downloads :
303
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
agenttesla
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ID:
1
File name:
f80e5f58eaad73e902c8d612e166c360a309e4093bd7fa3451df4495638a73e4.exe
Verdict:
Malicious activity
Analysis date:
2024-05-04 08:20:27 UTC
Tags:
evasion smtp exfiltration stealer agenttesla
Link:
https://app.any.run/tasks/846a9faf-06f8-4a9e-95e3-849f5fd165ec

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.2821.19112.31687.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a process with a hidden window
Creating a file
Using the Windows Management Instrumentation requests
Сreating synchronization primitives
DNS request
Connection attempt
Sending an HTTP GET request
Reading critical registry keys
Sending a custom TCP request
Creating a window
Stealing user critical data
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
masquerade packed
Link:
https://www.filescan.io/uploads/6635e870874e85cc5666ec4c/reports/72575789-e211-4942-a8d9-a6a44475a0a1/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/f80e5f58eaad73e902c8d612e166c360a309e4093bd7fa3451df4495638a73e4
Malware family:
Agent Tesla
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/9b42ca5b-6422-4106-91a8-f809164f24af
Result
Threat name:
AgentTesla, PureLog Stealer
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Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1436291
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
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
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Sigma detected: Suspicious Double Extension File Execution
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 an obfuscated file name to hide its real file extension (double extension)
Yara detected AgentTesla
Yara detected AntiVM3
Yara detected Costura Assembly Loader
Yara detected Generic Downloader
Yara detected PureLog Stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1436291 Sample: Dekont.pdf.exe Startdate: 04/05/2024 Architecture: WINDOWS Score: 100 19 mail.gencoldfire.com 2->19 21 ip-api.com 2->21 37 Multi AV Scanner detection for domain / URL 2->37 39 Found malware configuration 2->39 41 Malicious sample detected (through community Yara rule) 2->41 43 14 other signatures 2->43 7 Dekont.pdf.exe 3 2->7         started        10 chrome.exe 9 2->10         started        signatures3 process4 dnsIp5 45 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->45 47 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 7->47 49 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 7->49 13 Dekont.pdf.exe 15 2 7->13         started        23 192.168.2.5, 443, 49428, 49703 unknown unknown 10->23 25 239.255.255.250 unknown Reserved 10->25 17 chrome.exe 10->17         started        signatures6 process7 dnsIp8 27 mail.gencoldfire.com 185.196.11.12, 49706, 587 SIMPLECARRIERCH Switzerland 13->27 29 ip-api.com 208.95.112.1, 49705, 80 TUT-ASUS United States 13->29 51 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 13->51 53 Tries to steal Mail credentials (via file / registry access) 13->53 55 Tries to harvest and steal ftp login credentials 13->55 57 Tries to harvest and steal browser information (history, passwords, etc) 13->57 31 www.google.com 142.250.217.132, 443, 49708, 49709 GOOGLEUS United States 17->31 33 plus.l.google.com 172.217.12.142, 443, 49721 GOOGLEUS United States 17->33 35 apis.google.com 17->35 signatures9
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/f80e5f58eaad73e902c8d612e166c360a309e4093bd7fa3451df4495638a73e4
Detection:
agenttesla
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Link:
https://mwdb.cert.pl/sample/f80e5f58eaad73e902c8d612e166c360a309e4093bd7fa3451df4495638a73e4/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
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Status:
Malicious
First seen:
2024-05-03 09:22:07 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
17 of 24 (70.83%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=7ahf6whkvvz6sawi2yjoczwdmcrqtzajhpl7uncr35cjky4kopsa._file
Verdict:
malicious
Label(s):
agenttesla_v4
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agenttesla
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Similar samples:
12d4a1c97873ee94b9b371666debc07aea1fd56d8afda6d023d2426bc54f6e34
Formbook
2f7ca180c50ce99d164b5601826e648f88d6db9b932b052dfea9d59a7e2b78ed
Formbook
48e27e05da2697751c4de6a8d5d32f9de30c5be86fd5c2263624f6be1e25ac87
Formbook
e38df18adfde3e7ad19894dad9579c0ada18bfbddcb56846a043c4cfb811ec40
Formbook
+ 3'946 additional samples on MalwareBazaar
Result
Malware family:
zgrat
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Score:
  10/10
Tags:
family:agenttesla family:zgrat keylogger rat spyware stealer trojan
Link:
https://tria.ge/reports/240504-jnpfssaf39/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Looks up external IP address via web service
Reads WinSCP keys stored on the system
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
AgentTesla
Detect ZGRat V1
ZGRat
Unpacked files
SH256 hash:
bb0dd008cb087f0823ffc3677ed4cab4de4e02140d9035f6430377dc8ece6393
MD5 hash:
2067c13fdfaea453dfceee96e601be66
SHA1 hash:
75af23a941a6c024dc0385852070400eb347394a
Detections:
AgentTesla
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win_agent_tesla_g2
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INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
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Agenttesla_type2
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INDICATOR_SUSPICIOUS_Binary_References_Browsers
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INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
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INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
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INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
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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/7090eec1-c72a-4541-886e-4c3334b7f22c/
Parent samples :
e38df18adfde3e7ad19894dad9579c0ada18bfbddcb56846a043c4cfb811ec40
0764ec132ebf90d1c59dfe6bc19d492b1e0034f3021f466c63231be4413bc1e6
2f7ca180c50ce99d164b5601826e648f88d6db9b932b052dfea9d59a7e2b78ed
48e27e05da2697751c4de6a8d5d32f9de30c5be86fd5c2263624f6be1e25ac87
12d4a1c97873ee94b9b371666debc07aea1fd56d8afda6d023d2426bc54f6e34
f80e5f58eaad73e902c8d612e166c360a309e4093bd7fa3451df4495638a73e4
SH256 hash:
19efdf03cb94895935225795f68bb9abfded1869687367013b8b4eee3cc99372
MD5 hash:
4e29f75c0c51b9dec76955f0382d9541
SHA1 hash:
4899aa8e3f57339cbaec8faab777897a76fe1c3a
Link:
https://www.unpac.me/results/7090eec1-c72a-4541-886e-4c3334b7f22c/
SH256 hash:
51bbb91f65c9c39508aae98cfd44e6fdd5b5b06faffa745b1b997b17ad48803a
MD5 hash:
9720192e5f76b969670c2fcc63aea330
SHA1 hash:
213dfa5b146f63e80c9eb9973920fcc2cc2fb96d
Link:
https://www.unpac.me/results/7090eec1-c72a-4541-886e-4c3334b7f22c/
SH256 hash:
f6955a9e1a253adf78249391a99d19f121f76106170589e7e606f3e94887582e
MD5 hash:
b5a51169623407f770313b135bb75a9e
SHA1 hash:
1711496ca5a9f56d8e8ffb9b9e2fa5a8d0b08a87
Link:
https://www.unpac.me/results/7090eec1-c72a-4541-886e-4c3334b7f22c/
SH256 hash:
1ba36da7e7b4ef3bd67e9a93a2f539817765c52d83246b5e4d7c1f49b3a3cf7e
MD5 hash:
06aec90b7dc7059ff544dc8bbb86c356
SHA1 hash:
15c9fa29af9324c6847c61000e15e83dd39dfa84
Detections:
INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
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Agenttesla_type2
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INDICATOR_SUSPICIOUS_Binary_References_Browsers
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INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
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INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
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INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
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INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
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Link:
https://www.unpac.me/results/7090eec1-c72a-4541-886e-4c3334b7f22c/
SH256 hash:
f80e5f58eaad73e902c8d612e166c360a309e4093bd7fa3451df4495638a73e4
MD5 hash:
3f14789bbb2b7f4c62f213458da97e1b
SHA1 hash:
15e83047aff16bc4be694ddea208af4e5adb4e59
Link:
https://www.unpac.me/results/7090eec1-c72a-4541-886e-4c3334b7f22c/
Malware family:
AgentTesla
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/f80e5f58eaad/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/f80e5f58eaad73e902c8d612e166c360a309e4093bd7fa3451df4495638a73e4

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
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Author:ditekshen
Description:AgentTeslaV3 infostealer payload
Rule name:AgentTeslaV5
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Author:ClaudioWayne
Description:AgentTeslaV5 infostealer payload
Rule name:DebuggerCheck__RemoteAPI
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Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:INDICATOR_EXE_Packed_GEN01
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Author:ditekSHen
Description:Detect packed .NET executables. Mostly AgentTeslaV4.
Rule name:INDICATOR_SUSPICIOUS_Binary_References_Browsers
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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
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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
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Author:ditekSHen
Description:Detects executables referencing many email and collaboration clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
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Author:ditekSHen
Description:Detects executables referencing many file transfer clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
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Author:ditekSHen
Description:Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion
Rule name:INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
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Author:ditekSHen
Description:Detects executables referencing Windows vault credential objects. Observed in infostealers
Rule name:malware_Agenttesla_type2
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Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:NET
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Author:malware-lu
Rule name:NETexecutableMicrosoft
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Author:malware-lu
Rule name:pe_imphash
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Rule name:Skystars_Malware_Imphash
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Author:Skystars LightDefender
Description:imphash
Rule name:Windows_Trojan_AgentTesla_ebf431a8
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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.

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 (GUARD_CF)high

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