MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 23f7673e7c2c82ad3fc28053b843654f6b8c6001ea61f33c9bb8ecad069d4d79. 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: 14


Intelligence 14 IOCs YARA 21 File information Comments
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SHA256 hash: 23f7673e7c2c82ad3fc28053b843654f6b8c6001ea61f33c9bb8ecad069d4d79
SHA3-384 hash: 315ac86bd98fa9be97c1cc3edd6d2c100d65fd530bf340c04879219ef9987729ae57ca03bd2a447bb2b81566fb50250d
SHA1 hash: bd346858ad56960bf2c859a345095d25ba935edb
MD5 hash: 446de202491c9e236094f393ec6d2e2b
humanhash: west-zulu-seven-sodium
File name:dhl delivery_contact form_airway bill_receipt30042024.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:3'227'533 bytes
First seen:2024-04-30 10:41:22 UTC
Last seen:2024-04-30 11:33:25 UTC
File type:Executable exe
MIME type:application/x-dosexec
ssdeep 49152:4zBfc7DCBU8DVHcGwlZFuWUYKcxJ6E4Xw84LLIwrSOpGBNGCh+LBnOZ7mc+KT:4zuwj96KS4gzpn0p9vT
Threatray 4 similar samples on MalwareBazaar
TLSH T1D8E5CE42C7BD471BD55E42B8D86100C03BA6E748E3E7EEA9880AD42D6C43724FA75E77
TrID 70.8% (.CPL) Windows Control Panel Item (generic) (57583/11/19)
12.9% (.EXE) Win64 Executable (generic) (10523/12/4)
6.2% (.EXE) Win16 NE executable (generic) (5038/12/1)
2.5% (.ICL) Windows Icons Library (generic) (2059/9)
2.4% (.EXE) OS/2 Executable (generic) (2029/13)
Reporter abuse_ch
Tags:DHL exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
321
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
agenttesla
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ID:
1
File name:
23f7673e7c2c82ad3fc28053b843654f6b8c6001ea61f33c9bb8ecad069d4d79.exe
Verdict:
Malicious activity
Analysis date:
2024-04-30 11:22:38 UTC
Tags:
evasion ftp stealer agenttesla exfiltration
Link:
https://app.any.run/tasks/f1e2eaf0-7d86-4af7-959a-a73793c25caf

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win64.CrypterX-gen.8422.18883.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Launching a process
Searching for synchronization primitives
Launching the default Windows debugger (dwwin.exe)
Using the Windows Management Instrumentation requests
Сreating synchronization primitives
DNS request
Connection attempt
Sending an HTTP GET request
Creating a file in the %AppData% subdirectories
Enabling the 'hidden' option for recently created files
Reading critical registry keys
Sending a custom TCP request
Creating a window
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Stealing user critical data
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
masquerade overlay packed
Link:
https://www.filescan.io/uploads/6630cb0d75339da04fa793a9/reports/2da2015e-a05a-4055-9161-4200af08202f/overview
Verdict:
Malicious
Labled as:
MSILHeracles.Generic
Link:
https://www.hybrid-analysis.com/sample/23f7673e7c2c82ad3fc28053b843654f6b8c6001ea61f33c9bb8ecad069d4d79
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/633db835-8ce0-4e80-a810-e7c1bede4df8
Result
Threat name:
AgentTesla
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Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1434012
Signature
Allocates memory in foreign processes
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)
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
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)
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected AntiVM3
Yara detected Generic Downloader
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1434012 Sample: dhl delivery_contact form_a... Startdate: 30/04/2024 Architecture: WINDOWS Score: 100 48 ftp.kenvue.cam 2->48 50 ip-api.com 2->50 52 2 other IPs or domains 2->52 60 Found malware configuration 2->60 62 Malicious sample detected (through community Yara rule) 2->62 64 Multi AV Scanner detection for submitted file 2->64 66 7 other signatures 2->66 7 dhl delivery_contact form_airway bill_receipt30042024.exe 3 2->7         started        10 chrome.exe 9 2->10         started        13 chrome.exe 2 2->13         started        15 2 other processes 2->15 signatures3 process4 dnsIp5 76 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 7->76 78 Writes to foreign memory regions 7->78 80 Allocates memory in foreign processes 7->80 82 Injects a PE file into a foreign processes 7->82 17 RegSvcs.exe 16 4 7->17         started        22 WerFault.exe 19 16 7->22         started        24 conhost.exe 7->24         started        34 2 other processes 7->34 54 192.168.2.5 unknown unknown 10->54 56 192.168.2.8, 138, 21, 443 unknown unknown 10->56 58 239.255.255.250 unknown Reserved 10->58 26 chrome.exe 10->26         started        28 conhost.exe 13->28         started        30 conhost.exe 15->30         started        32 chrome.exe 15->32         started        signatures6 process7 dnsIp8 38 ftp.kenvue.cam 209.159.151.58, 21, 49723 IS-AS-1US United States 17->38 40 ip-api.com 208.95.112.1, 49720, 80 TUT-ASUS United States 17->40 36 C:\Users\user\AppData\Roaming\...\chrome.exe, PE32 17->36 dropped 68 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 17->68 70 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 17->70 72 Tries to steal Mail credentials (via file / registry access) 17->72 74 4 other signatures 17->74 42 www3.l.google.com 142.250.190.110, 443, 49737 GOOGLEUS United States 26->42 44 142.250.190.142, 443, 49752 GOOGLEUS United States 26->44 46 5 other IPs or domains 26->46 file9 signatures10
Score:
13%
Verdict:
Benign
File Type:
PE
Link:
https://malprob.io/report/23f7673e7c2c82ad3fc28053b843654f6b8c6001ea61f33c9bb8ecad069d4d79
Detection:
agenttesla
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Link:
https://mwdb.cert.pl/sample/23f7673e7c2c82ad3fc28053b843654f6b8c6001ea61f33c9bb8ecad069d4d79/
Threat name:
ByteCode-MSIL.Spyware.Negasteal
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Status:
Malicious
First seen:
2024-04-30 03:28:53 UTC
File Type:
PE+ (.Net Exe)
Extracted files:
1
AV detection:
17 of 38 (44.74%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=ep3wopt4fsbk2p6cqbj3qq3fj5vyyyab5jq7gpe3xdwk2bu5jv4q._file
Verdict:
malicious
Label(s):
agenttesla_v4
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agenttesla
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Similar samples:
80f6c8b05627d848eebeee9f5c479ce2904d5bdd8be21035026455ac2edc251c
Formbook
d4bc50772664dd5f5991bd90e89897db6ddf588d53003cdde8953c726cf617d5
Formbook
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/240430-mrpgraad6z/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
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
Unpacked files
SH256 hash:
23f7673e7c2c82ad3fc28053b843654f6b8c6001ea61f33c9bb8ecad069d4d79
MD5 hash:
446de202491c9e236094f393ec6d2e2b
SHA1 hash:
bd346858ad56960bf2c859a345095d25ba935edb
Link:
https://www.unpac.me/results/6a20cb10-3dbd-4a3b-83b5-04e69fd35744/
Malware family:
AgentTesla
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/23f7673e7c2c/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Formbook
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/23f7673e7c2c82ad3fc28053b843654f6b8c6001ea61f33c9bb8ecad069d4d79

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:AgentTeslaV2
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Author:ditekshen
Description:AgenetTesla Type 2 Keylogger payload
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
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
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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
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:MALWARE_Win_AgentTeslaV2
Create hunting rule
Author:ditekSHen
Description:AgenetTesla Type 2 Keylogger payload
Rule name:Multifamily_RAT_Detection
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Author:Lucas Acha (http://www.lukeacha.com)
Description:Generic Detection for multiple RAT families, PUPs, Packers and suspicious executables
Rule name:NET
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Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:pe_no_import_table
Create hunting rule
Description:Detect pe file that no import table
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Windows_Generic_Threat_9f4a80b2
Create hunting rule
Author:Elastic Security
Rule name:Windows_Trojan_AgentTesla_ebf431a8
Create hunting rule
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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