MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 ef98f88e2af062e52962b309ec92736c485ce509e6319271cdde46e030455b5b. 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
GuLoader
Vendor detections: 9
| SHA256 hash: | ef98f88e2af062e52962b309ec92736c485ce509e6319271cdde46e030455b5b |
|---|---|
| SHA3-384 hash: | a97b1f0aab14983ba88d3f2e406f77e8e7c88f206b7b51c77ccb07df6822dba71cac40af84e98ad2514551ccdbce3215 |
| SHA1 hash: | d86a43b756d38208dcf079ffb427c32ce138ea3f |
| MD5 hash: | cad1e561bae1a49828c3033b3d2f6e75 |
| humanhash: | helium-mockingbird-social-saturn |
| File name: | SecuriteInfo.com.generic.ml.10993.16572 |
| Download: | download sample |
| Signature | GuLoader |
| File size: | 250'496 bytes |
| First seen: | 2022-08-29 02:37:46 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | b34f154ec913d2d2c435cbd644e91687 (527 x GuLoader, 110 x RemcosRAT, 80 x EpsilonStealer) |
| ssdeep | 6144:OmOPGD//kQ7OE67/WeInHwOrtkQ0F2xU+5EUKwbXgaNYrC:tr/kG67zmw6tdxUIN77/NYu |
| Threatray | 64 similar samples on MalwareBazaar |
| TLSH | T1A13401403760C566CC460F70C3691AFAA776EE69E471161B0720FEADFC717938A2D36A |
| TrID | 48.8% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13) 16.4% (.EXE) Win64 Executable (generic) (10523/12/4) 10.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 7.8% (.EXE) Win16 NE executable (generic) (5038/12/1) 7.0% (.EXE) Win32 Executable (generic) (4505/5/1) |
| Reporter |  SecuriteInfoCom |
| Tags: | exe GuLoader signed |
Code Signing Certificate
| Organisation: | Discanter Datareduktionen Cesare |
|---|---|
| Issuer: | Discanter Datareduktionen Cesare |
| Algorithm: | sha256WithRSAEncryption |
| Valid from: | 2022-01-20T04:42:47Z |
| Valid to: | 2025-01-19T04:42:47Z |
| Serial number: | -68bd49860b72401a |
| Thumbprint Algorithm: | SHA256 |
| Thumbprint: | bfbe2c51e55d116537cccf73d694f381144c2e11ed3a72c5093748498d907266 |
| Source: | This information was brought to you by ReversingLabs A1000 Malware Analysis Platform |
Intelligence
File Origin
# of uploads :
1
# of downloads :
275
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
SecuriteInfo.com.generic.ml.10993.16572
Verdict:
Malicious activity
Analysis date:
2022-08-29 02:40:03 UTC
Tags:
n/a
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Detection(s):
Result
Verdict:
Clean
Maliciousness:
Behaviour
Creating a window
Searching for the window
Creating a file in the %AppData% subdirectories
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
Verdict:
Likely Malicious
Threat level:
7.5/10
Confidence:
100%
Tags:
overlay packed shell32.dll
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:
AgentTesla, GuLoader
Detection:
malicious
Classification:
troj.evad.spyw
Score:
100 / 100
Signature
Found evasive API chain (trying to detect sleep duration tampering with parallel thread)
Malicious sample detected (through community Yara rule)
Opens the same file many times (likely Sandbox evasion)
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
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 steal Mail credentials (via file / registry access)
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected GuLoader
Behaviour
Behavior Graph:
Threat name:
Win32.Trojan.GuLoader
Status:
Malicious
First seen:
2022-08-29 01:13:05 UTC
File Type:
PE (Exe)
Extracted files:
6
AV detection:
14 of 40 (35.00%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
unknown
Similar samples:
+ 54 additional samples on MalwareBazaar
Result
Malware family:
guloader
Score:
10/10
Tags:
family:guloader discovery downloader
Behaviour
Enumerates physical storage devices
Drops file in Windows directory
Checks installed software on the system
Loads dropped DLL
Guloader,Cloudeye
Unpacked files
SH256 hash:
f004c568d305cd95edbd704166fcd2849d395b595dff814bcc2012693527ac37
MD5 hash:
8b3830b9dbf87f84ddd3b26645fed3a0
SHA1 hash:
223bef1f19e644a610a0877d01eadc9e28299509
SH256 hash:
ef98f88e2af062e52962b309ec92736c485ce509e6319271cdde46e030455b5b
MD5 hash:
cad1e561bae1a49828c3033b3d2f6e75
SHA1 hash:
d86a43b756d38208dcf079ffb427c32ce138ea3f
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
File information
The table below shows additional information about this malware sample such as delivery method and external references.
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