MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8a3597999df227bed6a515aebd8ecf14468a8e3f23d570af30f42d72b3f6356b. 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: 11


Intelligence 11 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8a3597999df227bed6a515aebd8ecf14468a8e3f23d570af30f42d72b3f6356b
SHA3-384 hash: 1bc5e58efc5843685bbf24bc183f6c9dc37867168d4daef4615e165712e828fb6d34d6ce42ab65df1b13104cb95e1b2b
SHA1 hash: 35c0251531d08a060807c429e0833b5d48099a9d
MD5 hash: eef80ad0744688be6c6029e7793dcf91
humanhash: five-cardinal-glucose-magnesium
File name:COACH MARCH ORDER +COACH JUNE, JULY, AUGUST ORDER .xlsx.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:571'672 bytes
First seen:2024-03-19 15:00:23 UTC
Last seen:2024-03-19 16:28:00 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 6e7f9a29f2c85394521a08b9f31f6275 (295 x GuLoader, 51 x VIPKeylogger, 50 x RemcosRAT)
ssdeep 12288:EMwrhdMp7SyAHZ5lEhugESlldjfmj/IiZY4CqXr6pSD8gZLI:EMwr0p7STUE6+jdm9qb/8gZI
TLSH T150C423857A84C836FD738331253963671FFEF81958B98E0B7394361D7A7A680120EB5E
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)
Reporter lowmal3
Tags:AgentTesla exe signed

Code Signing Certificate

Organisation:Tredjeprmie
Issuer:Tredjeprmie
Algorithm:sha256WithRSAEncryption
Valid from:2023-05-26T07:00:12Z
Valid to:2026-05-25T07:00:12Z
Serial number: 7fd46db418dd24d8624ae9cea3fc0992f26c2454
Thumbprint Algorithm:SHA256
Thumbprint: ca5c2c6c88d09ab2ac2c55a53fa3fb662cb592375b4bf3aa88d5026af084259e
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
2
# of downloads :
410
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
8a3597999df227bed6a515aebd8ecf14468a8e3f23d570af30f42d72b3f6356b.exe
Verdict:
Malicious activity
Analysis date:
2024-03-19 15:03:00 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/cc32dbfc-f0c7-493d-b9ea-8bf303d38607

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Trojan.TR.AD.NsisInject.kkgoz.9246.9744.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Searching for the window
Creating a window
Creating a file
Creating a file in the %temp% directory
Delayed reading of the file
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
installer lolbin masquerade overlay packed shell32
Link:
https://www.filescan.io/uploads/65f9a8b1757c624818b32366/reports/a4b598e0-8327-4375-801d-f487fba86cb4/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/8a3597999df227bed6a515aebd8ecf14468a8e3f23d570af30f42d72b3f6356b
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/3c6588fc-db78-4bdb-846a-1f23c8b1640e
Result
Threat name:
GuLoader
Create hunting rule
Detection:
malicious
Classification:
troj.evad.spyw
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1411824
Signature
Check if machine is in data center or colocation facility
Creates multiple autostart registry keys
Hides that the sample has been downloaded from the Internet (zone.identifier)
Initial sample is a PE file and has a suspicious name
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: 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 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 GuLoader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1411824 Sample: COACH MARCH ORDER +COACH JU... Startdate: 19/03/2024 Architecture: WINDOWS Score: 100 30 ip-api.com 2->30 32 drive.usercontent.google.com 2->32 34 2 other IPs or domains 2->34 52 Multi AV Scanner detection for dropped file 2->52 54 Multi AV Scanner detection for submitted file 2->54 56 Yara detected GuLoader 2->56 58 6 other signatures 2->58 7 COACH MARCH ORDER +COACH JUNE, JULY, AUGUST ORDER  .xlsx.exe 1 37 2->7         started        10 FTSKIaM.exe 28 2->10         started        13 FTSKIaM.exe 19 2->13         started        signatures3 process4 file5 28 C:\Users\user\AppData\Local\...\System.dll, PE32 7->28 dropped 15 COACH MARCH ORDER +COACH JUNE, JULY, AUGUST ORDER  .xlsx.exe 18 13 7->15         started        60 Multi AV Scanner detection for dropped file 10->60 62 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 10->62 64 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 10->64 20 FTSKIaM.exe 14 9 10->20         started        signatures6 process7 dnsIp8 36 ip-api.com 208.95.112.1, 49775, 49785, 80 TUT-ASUS United States 15->36 38 drive.usercontent.google.com 142.250.80.1, 443, 49773, 49783 GOOGLEUS United States 15->38 40 2 other IPs or domains 15->40 22 C:\Users\user\...\Pseudodiphtheric.exe, PE32 15->22 dropped 24 C:\Users\user\AppData\Roaming\...\FTSKIaM.exe, PE32 15->24 dropped 26 C:\Users\user\...\FTSKIaM.exe:Zone.Identifier, ASCII 15->26 dropped 42 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 15->42 44 Tries to steal Mail credentials (via file / registry access) 15->44 46 Creates multiple autostart registry keys 15->46 50 2 other signatures 15->50 48 Tries to harvest and steal browser information (history, passwords, etc) 20->48 file9 signatures10
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/8a3597999df227bed6a515aebd8ecf14468a8e3f23d570af30f42d72b3f6356b
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/8a3597999df227bed6a515aebd8ecf14468a8e3f23d570af30f42d72b3f6356b/
Threat name:
Win32.Trojan.Guloader
Create hunting rule
Status:
Malicious
First seen:
2024-03-19 08:05:05 UTC
File Type:
PE (Exe)
Extracted files:
6
AV detection:
14 of 24 (58.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ri2zpgm56it35vvfcwxl3dwpcrdivdr7epkxblzq6qwxfm7wgvvq._file
Verdict:
unknown
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/240319-sdwa2aeg62/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Adds Run key to start application
Legitimate hosting services abused for malware hosting/C2
Looks up external IP address via web service
Loads dropped DLL
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:
acf90ab6f4edc687e94aaf604d05e16e6cfb5e35873783b50c66f307a35c6506
MD5 hash:
6e55a6e7c3fdbd244042eb15cb1ec739
SHA1 hash:
070ea80e2192abc42f358d47b276990b5fa285a9
Link:
https://www.unpac.me/results/9402b547-0a16-4789-8ad6-db25873089d6/
SH256 hash:
8a3597999df227bed6a515aebd8ecf14468a8e3f23d570af30f42d72b3f6356b
MD5 hash:
eef80ad0744688be6c6029e7793dcf91
SHA1 hash:
35c0251531d08a060807c429e0833b5d48099a9d
Link:
https://www.unpac.me/results/9402b547-0a16-4789-8ad6-db25873089d6/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
AgentTesla
Score:
0.90
Link:
https://yomi.yoroi.company/submissions/8a3597999df227bed6a515aebd8ecf14468a8e3f23d570af30f42d72b3f6356b

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:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits

File information

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

Malspam

AgentTesla

Executable exe 8a3597999df227bed6a515aebd8ecf14468a8e3f23d570af30f42d72b3f6356b

(this sample)

  
Delivery method
Distributed via e-mail attachment

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_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high
Reviews
IDCapabilitiesEvidence
COM_BASE_APICan Download & Execute componentsole32.dll::CoCreateInstance
SECURITY_BASE_APIUses Security Base APIADVAPI32.dll::AdjustTokenPrivileges
ADVAPI32.dll::SetFileSecurityW
SHELL_APIManipulates System ShellSHELL32.dll::ShellExecuteExW
SHELL32.dll::SHFileOperationW
SHELL32.dll::SHGetFileInfoW
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CreateProcessW
ADVAPI32.dll::OpenProcessToken
KERNEL32.dll::CloseHandle
KERNEL32.dll::CreateThread
WIN_BASE_APIUses Win Base APIKERNEL32.dll::LoadLibraryExW
KERNEL32.dll::GetDiskFreeSpaceW
KERNEL32.dll::GetCommandLineW
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CopyFileW
KERNEL32.dll::CreateDirectoryW
KERNEL32.dll::CreateFileW
KERNEL32.dll::DeleteFileW
KERNEL32.dll::MoveFileW
KERNEL32.dll::MoveFileExW
WIN_BASE_USER_APIRetrieves Account InformationADVAPI32.dll::LookupPrivilegeValueW
WIN_REG_APICan Manipulate Windows RegistryADVAPI32.dll::RegCreateKeyExW
ADVAPI32.dll::RegDeleteKeyW
ADVAPI32.dll::RegOpenKeyExW
ADVAPI32.dll::RegQueryValueExW
ADVAPI32.dll::RegSetValueExW
WIN_USER_APIPerforms GUI ActionsUSER32.dll::AppendMenuW
USER32.dll::EmptyClipboard
USER32.dll::FindWindowExW
USER32.dll::OpenClipboard
USER32.dll::PeekMessageW
USER32.dll::CreateWindowExW

Comments