MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 8de51f065764c5adb842556ae9950789ccf9c12b0c7f573d74316a9af856f284. 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: 10
| SHA256 hash: | 8de51f065764c5adb842556ae9950789ccf9c12b0c7f573d74316a9af856f284 |
|---|---|
| SHA3-384 hash: | 1d56c07084d5a0da677fa2ee9a87714cf21d444229cbf2ad49f52fd444c4d02f8c4643e5057fd664e40b89a4bb3dc350 |
| SHA1 hash: | 36119ae94db040396493b9fb04f2c17e7a188b54 |
| MD5 hash: | e1d068fda32e6dd44b147604aaf86ff9 |
| humanhash: | colorado-earth-single-july |
| File name: | Ourbookingconfirmation#569%6.scr |
| Download: | download sample |
| Signature | GuLoader |
| File size: | 526'888 bytes |
| First seen: | 2023-02-20 10:40:30 UTC |
| Last seen: | 2023-02-20 12:41:36 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | b34f154ec913d2d2c435cbd644e91687 (527 x GuLoader, 110 x RemcosRAT, 80 x EpsilonStealer) |
| ssdeep | 12288:l5Z+iZhKb2jKq3OPSHRJ116e6DijBtpl2i6F+0cfjoozG:LUr2jJx1PY7ipzoo6 |
| Threatray | 441 similar samples on MalwareBazaar |
| TLSH | T151B41203CA75A442F6A61D302BB78676FDBED914303C425B5BA2BE683F15AC0E15EF41 |
| 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 | f0e4caccccacd870 (4 x GuLoader, 1 x NanoCore) |
| Reporter |  jomphatt |
| Tags: | BoredFluff exe GuLoader signed |
Code Signing Certificate
| Organisation: | |
|---|---|
| Issuer: | |
| Algorithm: | sha256WithRSAEncryption |
| Valid from: | 2022-11-18T01:43:42Z |
| Valid to: | 2025-11-17T01:43:42Z |
| Serial number: | 613a9ad44fe9e6309b21c19347ea4969ddecbf3d |
| Thumbprint Algorithm: | SHA256 |
| Thumbprint: | 0ba5555b84d32bf3c219a50d038130c8c686588f854910a9b8dacd5260601cfa |
| Source: | This information was brought to you by ReversingLabs A1000 Malware Analysis Platform |
Intelligence
File Origin
# of uploads :
2
# of downloads :
225
Origin country :
THVendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
cae9ead0-60d6-4d83-8fa7-454eee4b71c6
Verdict:
Malicious activity
Analysis date:
2023-02-20 10:42:43 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 in the %temp% subdirectories
Creating a file
Delayed reading of the file
Result
Malware family:
n/a
Score:
5/10
Tags:
n/a
Behaviour
MalwareBazaar
Verdict:
Suspicious
Threat level:
5/10
Confidence:
100%
Tags:
overlay packed shell32.dll
Verdict:
Malicious
Labled as:
Win/grayware_confidence_70%
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:
Remcos, GuLoader
Detection:
malicious
Classification:
troj.evad.phis.spyw
Score:
100 / 100
Signature
Creates autostart registry keys with suspicious values (likely registry only malware)
Detected unpacking (changes PE section rights)
Drops PE files with a suspicious file extension
Hides threads from debuggers
Installs a global keyboard hook
Maps a DLL or memory area into another process
Sample uses process hollowing technique
Sigma detected: Remcos
Tries to detect Any.run
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Instant Messenger accounts or passwords
Tries to steal Mail credentials (via file / registry access)
Yara detected GuLoader
Yara detected Remcos RAT
Yara detected WebBrowserPassView password recovery tool
Behaviour
Behavior Graph:
Threat name:
Win32.Trojan.GuLoader
Status:
Malicious
First seen:
2023-02-20 10:41:07 UTC
File Type:
PE (Exe)
Extracted files:
15
AV detection:
7 of 24 (29.17%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
unknown
Similar samples:
+ 431 additional samples on MalwareBazaar
Result
Malware family:
guloader
Score:
10/10
Tags:
family:guloader collection downloader persistence spyware stealer
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in Program Files directory
Drops file in Windows directory
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Accesses Microsoft Outlook accounts
Adds Run key to start application
Legitimate hosting services abused for malware hosting/C2
Checks QEMU agent file
Loads dropped DLL
Reads user/profile data of web browsers
NirSoft MailPassView
NirSoft WebBrowserPassView
Nirsoft
Guloader,Cloudeye
Unpacked files
SH256 hash:
c2f405d7402f815d0c3fadd9a50f0bbbb1bab9aa38fe347823478a2587299448
MD5 hash:
9625d5b1754bc4ff29281d415d27a0fd
SHA1 hash:
80e85afc5cccd4c0a3775edbb90595a1a59f5ce0
SH256 hash:
70e1b9c728808d16d62c80157247803837ddc74c3d8df66bc5311094f7bdbf05
MD5 hash:
75dc68aefd141ad35a4f72e4e10b0067
SHA1 hash:
b82cd4276203f2af57655584acf5df1696a05879
SH256 hash:
8de51f065764c5adb842556ae9950789ccf9c12b0c7f573d74316a9af856f284
MD5 hash:
e1d068fda32e6dd44b147604aaf86ff9
SHA1 hash:
36119ae94db040396493b9fb04f2c17e7a188b54
Verdict:
Malicious
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.
Delivery method
Distributed via e-mail link
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