MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 b811dce1aae1c0e0da249d5eb19dfd5b2640214627c9603b97f6f79c25a22e97. 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: 14
| SHA256 hash: | b811dce1aae1c0e0da249d5eb19dfd5b2640214627c9603b97f6f79c25a22e97 |
|---|---|
| SHA3-384 hash: | cf31e3fc2ea38919832c0a6f70f30a276c5ca6358118d6151367118c6587fd2de51f5d527297ecffd354e78772cbea76 |
| SHA1 hash: | 154484d6e6775ebef39dfdf7d3ca6c2f2a99d4fa |
| MD5 hash: | 7cec47740ae2e3a5914bb46bc2d0ffc6 |
| humanhash: | zulu-quiet-purple-don |
| File name: | Nomina 07.07.2026-97685878464674.exe |
| Download: | download sample |
| Signature | AgentTesla |
| File size: | 396'472 bytes |
| First seen: | 2026-07-22 11:10:27 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | b34f154ec913d2d2c435cbd644e91687 (589 x GuLoader, 130 x RemcosRAT, 84 x EpsilonStealer) |
| ssdeep | 6144:8mGIhCrl0WKxHId8Cc3IcgAYhXLnun8q+Jlq56zL:rm0Nxodvc3lgAyan8pfq2 |
| TLSH | T11984CF93F980C6AAFC2D4C75D5A752301B72ADB696858F4393D879123FB22C0353B52E |
| TrID | 50.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13) 10.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 10.5% (.EXE) Win64 Executable (generic) (6522/11/2) 8.1% (.EXE) Win16 NE executable (generic) (5038/12/1) 7.2% (.EXE) Win32 Executable (generic) (4504/4/1) |
| Magika | pebin |
| dhash icon | da9a9adaf8f8f8f8 (4 x AgentTesla) |
| Reporter |  lowmal3 |
| Tags: | AgentTesla exe signed |
Code Signing Certificate
| Organisation: | Keyboardtrykket |
|---|---|
| Issuer: | Keyboardtrykket |
| Algorithm: | sha256WithRSAEncryption |
| Valid from: | 2026-06-19T10:06:48Z |
| Valid to: | 2027-06-19T10:06:48Z |
| Serial number: | 19025c7e13c2ed774d99c98cf964f683fceb1883 |
| Thumbprint Algorithm: | SHA256 |
| Thumbprint: | 28f295fc6fe660a02f84ecee4f7b9953b8d5dcc1df62d44ea70d0a430515edd5 |
| Source: | This information was brought to you by ReversingLabs A1000 Malware Analysis Platform |
Intelligence
File Origin
# of uploads :
1
# of downloads :
211
Origin country :
DEVendor Threat Intelligence
Malware configuration found for:
GuLoader
NSIS
Details
Malware family:
agenttesla
ID:
1
File name:
b811dce1aae1c0e0da249d5eb19dfd5b2640214627c9603b97f6f79c25a22e97.zip
Verdict:
Malicious activity
Analysis date:
2026-07-22 11:40:08 UTC
Tags:
arch-exec ip-check evasion stealer exfiltration agenttesla ftp
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a window
Creating a file in the %AppData% subdirectories
Delayed reading of the file
Creating a file in the %temp% subdirectories
Unauthorized injection to a recently created process
Launching a process
Verdict:
Likely Malicious
Threat level:
7.5/10
Confidence:
100%
Tags:
base64 downloader installer installer microsoft_visual_cc nsis signed
Verdict:
Malicious
File Type:
exe x32
First seen:
2026-07-07T16:27:00Z UTC
Last seen:
2026-07-23T03:10:00Z UTC
Hits:
~10000
Verdict:
Suspicious
Result
Threat name:
GuLoader
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
AI detected suspicious PE / MSI digital signature
Allocates memory in foreign processes
Check if machine is in data center or colocation facility
Found direct / indirect Syscall (likely to bypass EDR)
Joe Sandbox ML detected suspicious sample
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: ImagingDevices Unusual Parent/Child Processes
Suricata IDS alerts for network traffic
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 detect virtualization through RDTSC time measurements
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Unusual module load detection (module proxying)
Writes to foreign memory regions
Yara detected GuLoader
Behaviour
Behavior Graph:
Score:
91%
Verdict:
Malware
File Type:
PE
Verdict:
inconclusive
YARA:
5 match(es)
Tags:
Executable NSIS Installer PE (Portable Executable) PE File Layout Win 32 Exe x86
Detection:
agenttesla
Threat name:
Win32.Trojan.Kepavll
Status:
Malicious
First seen:
2026-07-07 20:53:37 UTC
File Type:
PE (Exe)
Extracted files:
9
AV detection:
24 of 36 (66.67%)
Threat level:
5/5
Detection(s):
Suspicious file
Result
Malware family:
guloader
Score:
10/10
Tags:
family:agenttesla family:guloader collection discovery downloader keylogger spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Accesses Microsoft Outlook profiles
Looks up external IP address via web service
Loads dropped DLL
Family: AgentTesla
Family: Guloader,Cloudeye
Unpacked files
SH256 hash:
b811dce1aae1c0e0da249d5eb19dfd5b2640214627c9603b97f6f79c25a22e97
MD5 hash:
7cec47740ae2e3a5914bb46bc2d0ffc6
SHA1 hash:
154484d6e6775ebef39dfdf7d3ca6c2f2a99d4fa
SH256 hash:
3eb38ae99653a7dbc724132ee240f6e5c4af4bfe7c01d31d23faf373f9f2eaca
MD5 hash:
0d7ad4f45dc6f5aa87f606d0331c6901
SHA1 hash:
48df0911f0484cbe2a8cdd5362140b63c41ee457
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.52
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_NSIS_Nullsoft_Installer |
|---|---|
| Author: | Obscurity Labs LLC |
| Description: | Detects NSIS installers by .ndata section + NSIS header string |
| Rule name: | NSIS |
|---|---|
| Author: | kevoreilly |
| Description: | NSIS Integrity Check function |
| Rule name: | PE_Digital_Certificate |
|---|---|
| Author: | albertzsigovits |
| Rule name: | VECT_Ransomware |
|---|---|
| Author: | Mustafa Bakhit |
| Description: | Detects activity associated with VECT ransomware. This includes registry modifications and deletions, execution of system and defense-evasion commands, suspicious API usage, mutex creation, file and memory manipulation, ransomware note generation, anti-debugging and anti-analysis techniques, and embedded cryptographic constants (SHA256) characteristic of this malware family. Designed for threat intelligence and malware detection environments. |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
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