MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b682ebfe78fa2771607c1479121ffe4820f5b1c4cbb5d2e8618d516b4f6889e3. 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


AgentTesla


Vendor detections: 13


Intelligence 13 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b682ebfe78fa2771607c1479121ffe4820f5b1c4cbb5d2e8618d516b4f6889e3
SHA3-384 hash: f20cad3b5289d663c8b2307fb6fb12a9beb134604ee7a23153ebdf5928471439f57ea479df11d65bd7ce8ec23956379f
SHA1 hash: c9e35e8049ee9549a13087470ae12fddebe4c1e5
MD5 hash: f239cb52af6fbebef1def4511580727a
humanhash: william-skylark-two-nine
File name:doc20240626-00073.bat
Download: download sample
Signature AgentTesla
Create hunting rule
File size:624'376 bytes
First seen:2024-06-26 08:48:53 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash b78ecf47c0a3e24a6f4af114e2d1f5de (295 x GuLoader, 23 x Formbook, 21 x RemcosRAT)
ssdeep 12288:VE8ErN4UgcbSSTCdm3Xstno+AZUZRImnO:VEnKqFC83FjZUPImnO
Threatray 746 similar samples on MalwareBazaar
TLSH T1A6D48D6643E36AC2D49309B471A271FDF2785DB282C6F373565AFA39C3F8EA54902143
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4504/4/1)
File icon (PE):PE icon
dhash icon 9403f8e0bae8ea4d (2 x AgentTesla)
Reporter abuse_ch
Tags:AgentTesla bat exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
354
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
guloader
Create hunting rule
ID:
1
File name:
b682ebfe78fa2771607c1479121ffe4820f5b1c4cbb5d2e8618d516b4f6889e3.exe
Verdict:
Malicious activity
Analysis date:
2024-06-26 08:53:41 UTC
Tags:
guloader loader evasion smtp exfiltration stealer agenttesla
Link:
https://app.any.run/tasks/2752208e-9f24-4813-b71d-7b40096bece6

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Mal.Generic-S.31020.16397.20236.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
81.4%
Link:
https://cyber-fortress.com/docs/result/index.php?id=667bd67d7ca575ea1996d640win7simulatehigh_evasion
Tags:
Encryption Stealth Inject
Result
Verdict:
Suspicious
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% subdirectories
Searching for the window
Creating a file in the Windows subdirectories
Creating a file
Launching a process
Using the Windows Management Instrumentation requests
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
installer lolbin masquerade microsoft_visual_cc overlay packed shell32
Link:
https://www.filescan.io/uploads/667bd6036b8dba248b45b98c/reports/84738845-4f54-4e8f-9acc-df8e3d49beba/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/b682ebfe78fa2771607c1479121ffe4820f5b1c4cbb5d2e8618d516b4f6889e3
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:
Suspicious
Link:
https://analyze.intezer.com/analyses/c8e6308e-b882-43ea-871d-6e6458ec3b9f
Result
Threat name:
AgentTesla, GuLoader
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1462898
Signature
AI detected suspicious sample
Check if machine is in data center or colocation facility
Found malware configuration
Found suspicious powershell code related to unpacking or dynamic code loading
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Powershell drops PE 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: Suspicious Executable File Creation
Sigma detected: Suspicious Script Execution From Temp Folder
Suspicious powershell command line found
Switches to a custom stack to bypass stack traces
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 GuLoader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1462898 Sample: doc20240626-00073.bat.exe Startdate: 26/06/2024 Architecture: WINDOWS Score: 100 40 sslout.de 2->40 42 ip-api.com 2->42 44 elektro-voda.hr 2->44 54 Found malware configuration 2->54 56 Multi AV Scanner detection for dropped file 2->56 58 Multi AV Scanner detection for submitted file 2->58 60 9 other signatures 2->60 8 doc20240626-00073.bat.exe 2 47 2->8         started        signatures3 process4 file5 22 C:\Users\user\AppData\Local\...\Oprmt.Glo, ASCII 8->22 dropped 24 C:\Users\user\AppData\Local\...\nsDialogs.dll, PE32 8->24 dropped 26 C:\Users\user\AppData\Local\...\UserInfo.dll, PE32 8->26 dropped 28 C:\Users\user\AppData\Local\...\AdvSplash.dll, PE32 8->28 dropped 62 Suspicious powershell command line found 8->62 12 powershell.exe 20 8->12         started        signatures6 process7 file8 30 C:\Users\user\...\doc20240626-00073.bat.exe, PE32 12->30 dropped 32 doc20240626-00073....exe:Zone.Identifier, ASCII 12->32 dropped 64 Writes to foreign memory regions 12->64 66 Found suspicious powershell code related to unpacking or dynamic code loading 12->66 68 Powershell drops PE file 12->68 16 wab.exe 14 8 12->16         started        20 conhost.exe 12->20         started        signatures9 process10 dnsIp11 34 ip-api.com 208.95.112.1, 49721, 80 TUT-ASUS United States 16->34 36 sslout.de 134.119.18.23, 49722, 587 GD-EMEA-DC-CGN1DE Germany 16->36 38 elektro-voda.hr 135.181.182.166, 443, 49720 HETZNER-ASDE Germany 16->38 46 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 16->46 48 Tries to steal Mail credentials (via file / registry access) 16->48 50 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 16->50 52 2 other signatures 16->52 signatures12
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/b682ebfe78fa2771607c1479121ffe4820f5b1c4cbb5d2e8618d516b4f6889e3
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b682ebfe78fa2771607c1479121ffe4820f5b1c4cbb5d2e8618d516b4f6889e3/
Threat name:
Win32.Trojan.Guloader
Create hunting rule
Status:
Malicious
First seen:
2024-06-26 08:49:14 UTC
File Type:
PE (Exe)
Extracted files:
14
AV detection:
16 of 24 (66.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=w2box7ty7itxcyd4cr4reh76jaqplmoezo25f2dbrviwwt3irhrq._file
Verdict:
unknown
Similar samples:
23ecba0be777d9b7a5683d0939d9ae17c4427c46e51ff959e91785d83c60efd1
AgentTesla
49ffcfe176de375dbbb2e4d50043d80fa254ca6b4ffc6d18d9501b6d8841a436
AgentTesla
71f72ce2762a449ca22338ff1035ba11b86ea974f39b7779eba2a8c480b1893e
AgentTesla
7a5984e2847646b6d3bb4075d210de7672898fd21bf5ad0d5a373ee51544290f
AgentTesla
8ca8c891e95359312e0a42f1f00fe42eefb662f66a61715ead3865d27fbe27e8
AgentTesla
b682ebfe78fa2771607c1479121ffe4820f5b1c4cbb5d2e8618d516b4f6889e3
AgentTesla
+ 736 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  8/10
Tags:
execution
Link:
https://tria.ge/reports/240626-kq1saawekc/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Drops file in Program Files directory
Drops file in Windows directory
Drops file in System32 directory
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Loads dropped DLL
Command and Scripting Interpreter: PowerShell
Verdict:
Unknown
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/4fdc4446-7808-432c-ad8e-ca18a16fdd46
Unpacked files
SH256 hash:
f2c1409faf2952c1c91f4b5495158ef5c7d1a1db6eea4a18f163574bd52fcad0
MD5 hash:
b3070cf20db659fdfb3cb2ed38130e8d
SHA1 hash:
aa234b0620bebddde1414ff6b0840d883890b413
Link:
https://www.unpac.me/results/91f19c74-ced5-4617-bfaa-a123f26167ad/
SH256 hash:
510e466a715933499fb9d5a1753b483826b2bf89161b9d466dd2ad7e52ede2fc
MD5 hash:
c22c9d7b6937b8960fba4c8a145076b2
SHA1 hash:
2e45c2dd6e5132a942fe940dccdaf771e0f9e81e
Link:
https://www.unpac.me/results/91f19c74-ced5-4617-bfaa-a123f26167ad/
SH256 hash:
9bf33690090655e91389469beb5dbdd45942192f2e2486c9fa82fa6d74a0f88b
MD5 hash:
15d8eee287329e2030c34c6bb3e62c87
SHA1 hash:
1de23c0883f7a80a489e140c55b16970dd0264ab
Link:
https://www.unpac.me/results/91f19c74-ced5-4617-bfaa-a123f26167ad/
SH256 hash:
b682ebfe78fa2771607c1479121ffe4820f5b1c4cbb5d2e8618d516b4f6889e3
MD5 hash:
f239cb52af6fbebef1def4511580727a
SHA1 hash:
c9e35e8049ee9549a13087470ae12fddebe4c1e5
Link:
https://www.unpac.me/results/91f19c74-ced5-4617-bfaa-a123f26167ad/
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/b682ebfe78fa2771607c1479121ffe4820f5b1c4cbb5d2e8618d516b4f6889e3

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:Detect_SliverFox_String
Create hunting rule
Author:huoji
Description:Detect files is `SliverFox` malware
Rule name:Ins_NSIS_Buer_Nov_2020_1
Create hunting rule
Author:Arkbird_SOLG
Description:Detect NSIS installer used for Buer loader
Rule name:NSIS_April_2024
Create hunting rule
Author:NDA0N
Description:Detects NSIS installers

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 (HIGH_ENTROPY_VA)high
Reviews
IDCapabilitiesEvidence
AUTH_APIManipulates User AuthorizationADVAPI32.dll::SetFileSecurityA
COM_BASE_APICan Download & Execute componentsole32.dll::CoCreateInstance
SECURITY_BASE_APIUses Security Base APIADVAPI32.dll::AdjustTokenPrivileges
SHELL_APIManipulates System ShellSHELL32.dll::ShellExecuteA
SHELL32.dll::SHFileOperationA
SHELL32.dll::SHGetFileInfoA
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CreateProcessA
ADVAPI32.dll::OpenProcessToken
KERNEL32.dll::CloseHandle
KERNEL32.dll::CreateThread
WIN_BASE_APIUses Win Base APIKERNEL32.dll::LoadLibraryExA
KERNEL32.dll::GetDiskFreeSpaceA
KERNEL32.dll::GetCommandLineA
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CopyFileA
KERNEL32.dll::CreateDirectoryA
KERNEL32.dll::CreateFileA
KERNEL32.dll::DeleteFileA
KERNEL32.dll::MoveFileExA
KERNEL32.dll::MoveFileA
WIN_BASE_USER_APIRetrieves Account InformationADVAPI32.dll::LookupPrivilegeValueA
WIN_REG_APICan Manipulate Windows RegistryADVAPI32.dll::RegCreateKeyExA
ADVAPI32.dll::RegDeleteKeyA
ADVAPI32.dll::RegOpenKeyExA
ADVAPI32.dll::RegQueryValueExA
ADVAPI32.dll::RegSetValueExA
WIN_USER_APIPerforms GUI ActionsUSER32.dll::AppendMenuA
USER32.dll::EmptyClipboard
USER32.dll::FindWindowExA
USER32.dll::OpenClipboard
USER32.dll::PeekMessageA
USER32.dll::CreateWindowExA

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