MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 26209a2258e61ef810975bfcff8e49a30e38cbd4901b2cc14f2a163f360e99ee. 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: 7
| SHA256 hash: | 26209a2258e61ef810975bfcff8e49a30e38cbd4901b2cc14f2a163f360e99ee |
|---|---|
| SHA3-384 hash: | 53193a10a64925647f6a1d041e854f73de754456605dbc19234ae1b3bcf62cfaeedbc6daf7621788877d046e7d0eeff1 |
| SHA1 hash: | 4677c63e642232a8f50832502e45d0b22ac720f5 |
| MD5 hash: | b20e3f39013ec433965ff06dc9f74940 |
| humanhash: | undress-robin-freddie-alaska |
| File name: | b20e3f39_by_Libranalysis |
| Download: | download sample |
| Signature | GuLoader |
| File size: | 90'112 bytes |
| First seen: | 2021-05-24 10:02:42 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | c0aa42a4533845b7eba74fce6ed7746f (1 x RemcosRAT, 1 x GuLoader) |
| ssdeep | 1536:AzSq5lqsTJRGNtdu1iiGkruScExowc4Gku69clC0:IiWRYKiiGp969x0 |
| Threatray | 1'742 similar samples on MalwareBazaar |
| TLSH | A7932851A244FF71C99EC3F48212887C5092BD3C2FA8999BD3C1052D36EB5E697367A3 |
| Reporter |  Libranalysis |
| Tags: | GuLoader |
Intelligence
File Origin
# of uploads :
1
# of downloads :
202
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
b20e3f39_by_Libranalysis
Verdict:
Malicious activity
Analysis date:
2021-05-24 10:18:24 UTC
Tags:
trojan rat remcos keylogger
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Detection(s):
Result
Verdict:
Suspicious
Maliciousness:
Behaviour
Creating a window
Sending a UDP request
Unauthorized injection to a recently created process
Launching a process
Creating a process with a hidden window
Running batch commands
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Result
Threat name:
GuLoader Remcos
Detection:
malicious
Classification:
phis.troj.spyw.evad
Score:
100 / 100
Signature
C2 URLs / IPs found in malware configuration
Contains functionality to detect hardware virtualization (CPUID execution measurement)
Detected RDTSC dummy instruction sequence (likely for instruction hammering)
Detected unpacking (changes PE section rights)
Found malware configuration
Hides threads from debuggers
Injects a PE file into a foreign processes
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sample uses process hollowing technique
Sigma detected: WScript or CScript Dropper
Tries to detect Any.run
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 Instant Messenger accounts or passwords
Tries to steal Mail credentials (via file access)
Tries to steal Mail credentials (via file registry)
Yara detected GuLoader
Yara detected Remcos RAT
Yara detected WebBrowserPassView password recovery tool
Behaviour
Behavior Graph:
Threat name:
Win32.Backdoor.Remcos
Status:
Malicious
First seen:
2021-05-24 05:39:06 UTC
AV detection:
7 of 46 (15.22%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
unknown
Similar samples:
+ 1'732 additional samples on MalwareBazaar
Result
Malware family:
remcos
Score:
10/10
Tags:
family:guloader family:remcos downloader persistence rat spyware stealer
Behaviour
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Adds Run key to start application
Checks QEMU agent file
Loads dropped DLL
Reads user/profile data of web browsers
Executes dropped EXE
NirSoft MailPassView
NirSoft WebBrowserPassView
Nirsoft
Guloader,Cloudeye
Remcos
Malware Config
C2 Extraction:
http://hncbeyghfsbvcuabgsbncvzgaioiuyegdbhabbbw.ydns.eu/Jice_remcos%202_vOOXAzQx82.bin
hjduiebcvzcalpmjdbcnwqadhsiybcnzxswedgap.ydns.eu:2024
hjduiebcvzcalpmjdbcnwqadhsiybcnzxswedgap.ydns.eu:2024
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.
Comments
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MBC behaviors list (github.com/accidentalrebel/mbcscan):
============================================================
0) [B0009.029] Anti-Behavioral Analysis::Instruction Testing
1) [C0019] Data Micro-objective::Check String