MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 86a71b90222d2cca00dadf08403fa518224fc6dadc7d3db66a769ae2331ec6aa. 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: 8
| SHA256 hash: | 86a71b90222d2cca00dadf08403fa518224fc6dadc7d3db66a769ae2331ec6aa |
|---|---|
| SHA3-384 hash: | 06cee66d660f4c0b3956478e400a1527a187f97c1dc15fc7fca16c0d09305ceb90185db27dd0a39d51a942415dffb14c |
| SHA1 hash: | 2a643516ce84b3a4735429c08c4ea0bf7fde90e4 |
| MD5 hash: | b11739b0390d94a1b281885d76d3b124 |
| humanhash: | fifteen-south-hawaii-charlie |
| File name: | b11739b0390d94a1b281885d76d3b124.exe |
| Download: | download sample |
| Signature | GuLoader |
| File size: | 208'896 bytes |
| First seen: | 2021-05-27 12:54:23 UTC |
| Last seen: | 2021-05-27 14:03:23 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 1abc0dab2264c6ccb12f07d7e589e0ba (1 x GuLoader, 1 x NanoCore) |
| ssdeep | 3072:YP8Iet+piSrmTcvB0YlqokgJ4oSPE3PGctdRV:0et+piLw50YlqHgJYPE3RdR |
| TLSH | 7914F972BB49E769F45183B03E81D1FB61323B3345674B07BB802B4AE4652CBBDB0A15 |
| Reporter |  abuse_ch |
| Tags: | exe GuLoader |
Intelligence
File Origin
# of uploads :
2
# of downloads :
217
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
IR21356553_00009339_20210524130931.PDF.xlsx
Verdict:
Malicious activity
Analysis date:
2021-05-27 11:53:57 UTC
Tags:
encrypted trojan opendir exploit CVE-2017-11882 loader nanocore rat
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 window
Sending a UDP request
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:
Malicious
Result
Threat name:
GuLoader
Detection:
malicious
Classification:
rans.troj.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)
Found malware configuration
Found potential dummy code loops (likely to delay analysis)
Hides threads from debuggers
Multi AV Scanner detection for submitted file
Potential malicious icon found
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
Writes to foreign memory regions
Yara detected GuLoader
Behaviour
Behavior Graph:
Threat name:
Win32.Trojan.Generic
Status:
Suspicious
First seen:
2021-05-27 00:17:45 UTC
AV detection:
4 of 47 (8.51%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Result
Malware family:
guloader
Score:
10/10
Tags:
family:guloader downloader
Behaviour
Suspicious behavior: MapViewOfSection
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Checks QEMU agent file
Guloader,Cloudeye
Malware Config
C2 Extraction:
http://farmersschool.ge/x7_wYwhx16.bin http://decosa.co.hu/x7_wYwhx16.bin
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.
Web download
Delivery method
Distributed via web download
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