MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 b48a5ebf4d21ce938606b70952e053ff15581a50d96e1e2cec000a8173edade3. 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
| SHA256 hash: | b48a5ebf4d21ce938606b70952e053ff15581a50d96e1e2cec000a8173edade3 |
|---|---|
| SHA3-384 hash: | 36dfff472c0bc3c17e262a84c6299445c69714a3bbb5a8c9b63956343d2551ca5334c90cfcde6a67f45f31fe85d4a943 |
| SHA1 hash: | 76adbcf9ffd7c737a513c61412c74a8acb9832d2 |
| MD5 hash: | 5eac01eb48b833581db348bc8ab49932 |
| humanhash: | video-cardinal-mango-quiet |
| File name: | Remesas Aceptadas_PDF.exe |
| Download: | download sample |
| Signature | AgentTesla |
| File size: | 361'760 bytes |
| First seen: | 2023-08-21 12:18:19 UTC |
| Last seen: | 2023-09-04 09:44:50 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | b34f154ec913d2d2c435cbd644e91687 (525 x GuLoader, 110 x RemcosRAT, 80 x EpsilonStealer) |
| ssdeep | 6144:kQ606xiZ8/J8UwuB58YjMo3LNkW0IqWNhPyXgeXyy4WUviQX2EMKedJje:fZ8/Sg8doLOWJd7DdevK |
| Threatray | 695 similar samples on MalwareBazaar |
| TLSH | T1AD742343B262D29BF25316B215B9AFB7CDB3AB4154585F421310AE4FACB63C4A11EBC4 |
| 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) (4505/5/1) |
| File icon (PE): |  |
| dhash icon | f1c0c68e8c98fc70 (3 x GuLoader, 3 x AgentTesla) |
| Reporter |  malwarelabnet |
| Tags: | AgentTesla exe GuLoader signed |
Code Signing Certificate
| Organisation: | |
|---|---|
| Issuer: | |
| Algorithm: | sha256WithRSAEncryption |
| Valid from: | 2023-06-18T23:33:31Z |
| Valid to: | 2026-06-17T23:33:31Z |
| Serial number: | 4f3326c8a26826c21c77f0b5ac65a1a2015e1c83 |
| Thumbprint Algorithm: | SHA256 |
| Thumbprint: | 101e85aed6ef16c262bb704595eb973c894dadf073f7596b4df54aafbb9fa3ae |
| Source: | This information was brought to you by ReversingLabs A1000 Malware Analysis Platform |
Intelligence
File Origin
# of uploads :
2
# of downloads :
335
Origin country :
CAVendor Threat Intelligence
Malware family:
guloader
ID:
1
File name:
Remesas Aceptadas_PDF.exe
Verdict:
Malicious activity
Analysis date:
2023-08-21 12:19:32 UTC
Tags:
guloader
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Result
Verdict:
Clean
Maliciousness:
Behaviour
Creating a file
Delayed reading of the file
Creating a file in the %temp% subdirectories
Result
Malware family:
n/a
Score:
5/10
Tags:
n/a
Behaviour
MalwareBazaar
Gathering data
Verdict:
Malicious
Labled as:
Trojan.Makoob
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
Result
Threat name:
GuLoader
Detection:
malicious
Classification:
troj.evad.spyw
Score:
100 / 100
Signature
Initial sample is a PE file and has a suspicious name
Maps a DLL or memory area into another process
May check the online IP address of the machine
Multi AV Scanner detection for submitted file
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Snort IDS alert for network traffic
Tries to detect Any.run
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)
Writes to foreign memory regions
Yara detected GuLoader
Behaviour
Behavior Graph:
Threat name:
Win32.Trojan.Guloader
Status:
Malicious
First seen:
2023-08-21 10:52:17 UTC
File Type:
PE (Exe)
Extracted files:
6
AV detection:
15 of 24 (62.50%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
malicious
Label(s):
agenttesla
cloudeye
Similar samples:
+ 685 additional samples on MalwareBazaar
Result
Malware family:
guloader
Score:
10/10
Tags:
family:guloader downloader
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Legitimate hosting services abused for malware hosting/C2
Looks up external IP address via web service
Checks QEMU agent file
Loads dropped DLL
Guloader,Cloudeye
Unpacked files
SH256 hash:
c2f405d7402f815d0c3fadd9a50f0bbbb1bab9aa38fe347823478a2587299448
MD5 hash:
9625d5b1754bc4ff29281d415d27a0fd
SHA1 hash:
80e85afc5cccd4c0a3775edbb90595a1a59f5ce0
SH256 hash:
b48a5ebf4d21ce938606b70952e053ff15581a50d96e1e2cec000a8173edade3
MD5 hash:
5eac01eb48b833581db348bc8ab49932
SHA1 hash:
76adbcf9ffd7c737a513c61412c74a8acb9832d2
Malware family:
GuLoader
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
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 |
|---|---|
| Author: | ditekshen |
| Description: | AgentTeslaV3 infostealer payload |
| Rule name: | INDICATOR_EXE_Packed_GEN01 |
|---|---|
| Author: | ditekSHen |
| Description: | Detect packed .NET executables. Mostly AgentTeslaV4. |
| Rule name: | NETexecutableMicrosoft |
|---|---|
| Author: | malware-lu |
| Rule name: | PE_Digital_Certificate |
|---|---|
| Author: | albertzsigovits |
| Rule name: | pe_imphash |
|---|
| Rule name: | PE_Potentially_Signed_Digital_Certificate |
|---|---|
| Author: | albertzsigovits |
| Rule name: | Skystars_Malware_Imphash |
|---|---|
| Author: | Skystars LightDefender |
| Description: | imphash |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
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