MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 85d7a4d55ae8442215001edff06de94f3e585132475342d4f350e5acc30fadc2. 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: 12
| SHA256 hash: | 85d7a4d55ae8442215001edff06de94f3e585132475342d4f350e5acc30fadc2 |
|---|---|
| SHA3-384 hash: | c64c0c3fd433a52c07aaf547bf1ce766f94e160a402902ac4d0fb63edb905f4820da6242ebe5e681d31a595d4524a031 |
| SHA1 hash: | 4489c5adcb2ee780377be65ba62c7f2e599642e2 |
| MD5 hash: | b1479fe74640c9e5745bf3443d21db50 |
| humanhash: | winter-violet-may-floor |
| File name: | 85d7a4d55ae8442215001edff06de94f3e585132475342d4f350e5acc30fadc2 |
| Download: | download sample |
| Signature | GuLoader |
| File size: | 568'024 bytes |
| First seen: | 2023-04-05 11:47:35 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 6e7f9a29f2c85394521a08b9f31f6275 (278 x GuLoader, 44 x RemcosRAT, 40 x VIPKeylogger) |
| ssdeep | 12288:YTMY1ltUnHhjvK7V2MEFl8W6UDJphLJhK8WEQ:YThtejS7HEgUDJpXw8Wn |
| Threatray | 691 similar samples on MalwareBazaar |
| TLSH | T168C4E1C3A0B0CBE6DC2C903955024423579EBF2675F8DA127BBB3219B4F1199817B7A7 |
| 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) |
| Reporter |  adrian__luca |
| Tags: | exe GuLoader signed |
Code Signing Certificate
| Organisation: | |
|---|---|
| Issuer: | |
| Algorithm: | sha256WithRSAEncryption |
| Valid from: | 2023-02-05T00:41:08Z |
| Valid to: | 2026-02-04T00:41:08Z |
| Serial number: | 1e3d1d9631fe983b403feab034e4ac1ee6c5f7f1 |
| Thumbprint Algorithm: | SHA256 |
| Thumbprint: | 08bb37b742ca0af6ba36aafa04a05c43f3cc4856581cc61ce83aeb7da8fd723f |
| Source: | This information was brought to you by ReversingLabs A1000 Malware Analysis Platform |
Intelligence
File Origin
# of uploads :
1
# of downloads :
223
Origin country :
HUVendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
85d7a4d55ae8442215001edff06de94f3e585132475342d4f350e5acc30fadc2
Verdict:
Malicious activity
Analysis date:
2023-04-05 11:47:09 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
Creating a file in the %AppData% subdirectories
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
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
guloader icedid overlay packed shell32.dll
Verdict:
Malicious
Labled as:
Win/malicious_confidence_60%
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
Score:
64 / 100
Signature
Multi AV Scanner detection for submitted file
Opens the same file many times (likely Sandbox evasion)
Tries to detect virtualization through RDTSC time measurements
Yara detected GuLoader
Behaviour
Behavior Graph:
Threat name:
Win32.Trojan.GuLoader
Status:
Malicious
First seen:
2023-03-28 06:03:43 UTC
File Type:
PE (Exe)
Extracted files:
32
AV detection:
15 of 37 (40.54%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Similar samples:
+ 681 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
7/10
Tags:
n/a
Behaviour
Modifies system certificate store
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in Windows directory
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Checks QEMU agent file
Loads dropped DLL
Unpacked files
SH256 hash:
b7823a15e7b1866ba3d77248f750b66505859d264cfc39d8c8c5e812f8ae4a81
MD5 hash:
a1da6788aeaf78ca4ae1dece8019e49d
SHA1 hash:
d770155e6e9aa69223be198c44a8da26a1756d89
SH256 hash:
85d7a4d55ae8442215001edff06de94f3e585132475342d4f350e5acc30fadc2
MD5 hash:
b1479fe74640c9e5745bf3443d21db50
SHA1 hash:
4489c5adcb2ee780377be65ba62c7f2e599642e2
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: | PE_Digital_Certificate |
|---|---|
| Author: | albertzsigovits |
| Rule name: | Suspicious_Macro_Presence |
|---|---|
| Author: | Mehmet Ali Kerimoglu (CYB3RMX) |
| Description: | This rule detects common malicious/suspicious implementations. |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
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